11650 lines
661 KiB
Markdown
11650 lines
661 KiB
Markdown
### Parameter values for YouTube simulations ###
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Created by **Nils Berglund** and optimized by **Marco Mancini**
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C code for videos on YouTube Channel https://www.youtube.com/c/NilsBerglund
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Below are parameter values used for different simulations, as well as initial conditions used in
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function animation. Some simulations use variants of the published code. The list is going to be
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updated gradually.
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### 30 November 23 - The Hall effect with an increasing magnetic field: Charge and particle density ###
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**Program:** `lennardjones.c`
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```
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#define MOVIE 1 /* set to 1 to generate movie */
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#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
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#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
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#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
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#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
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/* so far incompatible with double movie */
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#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
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#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
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#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
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/* General geometrical parameters */
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#define WINWIDTH 1600 /* window width */
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#define WINHEIGHT 900 /* window height */
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#define XMIN -2.0
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#define XMAX 2.0 /* x interval */
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#define YMIN -1.125
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#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
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#define INITXMIN -2.0
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#define INITXMAX 2.01 /* x interval for initial condition */
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#define INITYMIN -1.1
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#define INITYMAX 1.17 /* y interval for initial condition */
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#define ADDXMIN -1.97
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#define ADDXMAX -0.8 /* x interval for adding particles */
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#define ADDYMIN -1.125
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#define ADDYMAX 1.125 /* y interval for adding particles */
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#define BCXMIN -2.0
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#define BCXMAX 2.0 /* x interval for boundary condition */
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#define BCYMIN -1.125
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#define BCYMAX 1.125 /* y interval for boundary condition */
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#define OBSXMIN -2.0
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#define OBSXMAX 2.0 /* x interval for motion of obstacle */
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#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
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#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
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#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
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#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
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#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
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#define ADD_FIXED_SEGMENTS 1 /* set to 1 to add fixed segments as obstacles */
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#define SEGMENT_PATTERN 27 /* pattern of repelling segments, see list in global_ljones.c */
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#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
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#define ROCKET_SHAPE_B 3 /* shape of second rocket */
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#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
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#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
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#define TWO_TYPES 1 /* set to 1 to have two types of particles */
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#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
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#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
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#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
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#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
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#define CENTER_PY 0 /* set to 1 to center vertical momentum */
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#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
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#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
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#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
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#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
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#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
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#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
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#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
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#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
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#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
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#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
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#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
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#define MU 0.008 /* parameter controlling radius of particles */
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#define MU_B 0.018 /* parameter controlling radius of particles of second type */
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#define NPOLY 40 /* number of sides of polygon */
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#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
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#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
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#define MDEPTH 4 /* depth of computation of Menger gasket */
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#define MRATIO 3 /* ratio defining Menger gasket */
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#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
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#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
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#define FOCI 1 /* set to 1 to draw focal points of ellipse */
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#define NGRIDX 70 /* number of grid point for grid of disks */
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#define NGRIDY 35 /* number of grid point for grid of disks */
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#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
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#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
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#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
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#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
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#define X_SHOOTER -0.2
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#define Y_SHOOTER -0.6
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#define X_TARGET 0.4
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#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
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/* Parameters for length and speed of simulation */
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#define NSTEPS 3400 /* number of frames of movie */
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#define NVID 25 /* number of iterations between images displayed on screen */
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#define NSEG 25 /* number of segments of boundary of circles */
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#define INITIAL_TIME 0 /* time after which to start saving frames */
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#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
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#define BOUNDARY_WIDTH 1 /* width of particle boundary */
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#define LINK_WIDTH 2 /* width of links between particles */
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#define CONTAINER_WIDTH 4 /* width of container boundary */
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#define PAUSE 1000 /* number of frames after which to pause */
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#define PSLEEP 1 /* sleep time during pause */
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#define SLEEP1 1 /* initial sleeping time */
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#define SLEEP2 1 /* final sleeping time */
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#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
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#define END_FRAMES 250 /* number of still frames at end of movie */
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/* Boundary conditions, see list in global_ljones.c */
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#define BOUNDARY_COND 3
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/* Plot type, see list in global_ljones.c */
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#define PLOT 5
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#define PLOT_B 5 /* plot type for second movie */
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/* Background color depending on particle properties */
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#define COLOR_BACKGROUND 1 /* set to 1 to color background */
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#define BG_COLOR 2 /* type of background coloring, see list in global_ljones.c */
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#define BG_COLOR_B 1 /* type of background coloring, see list in global_ljones.c */
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#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
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#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
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#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
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#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
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#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
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#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
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#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
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#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
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#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
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/* Color schemes */
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#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
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#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
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#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
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#define COLOR_PALETTE_DIRECTION 0 /* Color palette for direction representation */
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#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
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#define COLOR_PALETTE_DIFFNEIGH 10 /* Color palette for different neighbours representation */
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#define BLACK 1 /* background */
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#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
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#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
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#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
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#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
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#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
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#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
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#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
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#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
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#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
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#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
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#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
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#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
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#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
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#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
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#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
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#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
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#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
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#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
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#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
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/* particle properties */
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#define ENERGY_HUE_MIN 330.0 /* color of original particle */
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#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
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#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
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#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
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#define PARTICLE_EMAX 3000.0 /* energy of particle with hottest color */
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#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
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#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
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#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
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#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
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#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
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#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
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#define KREPEL 10.0 /* constant in repelling force between particles */
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#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
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#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
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#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
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#define DAMPING 50.0 /* damping coefficient of particles */
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#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
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#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
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#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
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#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
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#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
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#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
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#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
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#define V_INITIAL 400.0 /* initial velocity range */
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#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
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#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
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#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
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#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
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#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
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#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
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#define SIGMA 5.0 /* noise intensity in thermostat */
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#define BETA 0.0002 /* initial inverse temperature */
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#define MU_XI 0.01 /* friction constant in thermostat */
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#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
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#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
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#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
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#define GRAVITY 0.0 /* gravity acting on all particles */
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#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
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#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
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#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
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#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
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#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
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#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
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#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
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#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
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#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
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#define ADD_EFIELD 1 /* set to 1 to add an electric field */
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#define EFIELD 50000.0 /* value of electric field */
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#define ADD_BFIELD 1 /* set to 1 to add a magnetic field */
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#define BFIELD 5.33333333333333 /* value of magnetic field */
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#define CHARGE -1.0 /* charge of particles of first type */
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#define CHARGE_B 2.0 /* charge of particles of second type */
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#define INCREASE_E 0 /* set to 1 to increase electric field */
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#define EFIELD_FACTOR 100000.0 /* factor by which to increase electric field */
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#define INCREASE_B 1 /* set to 1 to increase magnetic field */
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#define BFIELD_FACTOR 1000.0 /* factor by which to increase magnetic field */
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#define ROTATION 0 /* set to 1 to include rotation of particles */
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#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
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#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
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#define KTORQUE 50.0 /* force constant in angular dynamics */
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#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
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#define KTORQUE_B 10.0 /* force constant in angular dynamics */
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#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
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#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
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#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
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#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
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#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
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#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
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#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
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#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
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#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
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#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
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#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
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#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
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#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
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#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
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#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
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#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
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#define COMPRESSION_RATIO 0.3 /* final size of container */
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#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
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#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
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#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
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#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
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#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
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#define NTRIALS 2000 /* number of trials when resampling */
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#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
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#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
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#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
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#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
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#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
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#define N_PRESSURES 100 /* number of intervals to record pressure */
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#define N_P_AVERAGE 100 /* size of pressure averaging window */
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#define N_T_AVERAGE 1 /* size of temperature averaging window */
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#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
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#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
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#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
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#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
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#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
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#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
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#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
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#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
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#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
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#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
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#define NPART_BOTTOM 100 /* number of particles at the bottom */
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#define ADD_PARTICLES 0 /* set to 1 to add particles */
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#define ADD_TIME 0 /* time at which to add first particle */
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#define ADD_PERIOD 10 /* time interval between adding further particles */
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#define N_ADD_PARTICLES 2 /* number of particles to add */
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#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
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#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
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#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
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#define N_TRACER_PARTICLES 3 /* number of tracer particles */
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#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
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#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
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#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
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#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
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#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
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#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
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#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
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#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
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#define ROTATE_FINAL_TIME 300 /* final time without rotation */
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#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
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#define OMEGAMAX -2.0*PI /* maximal rotation speed */
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#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
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#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
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#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
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#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
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#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
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#define SEGMENTS_X0 1.5 /* initial position of segments */
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#define SEGMENTS_Y0 0.0 /* initial position of segments */
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#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
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#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
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#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
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#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
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#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
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#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
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#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
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#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
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#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
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#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
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||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 29 November 23 - What kind of waves would a Fagradalsfjäll volcano eruption cause in the Atlantic? ###
|
||
|
||
**Program:** `wave_spere.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_circular_wave_sphere(22.4360*PI/180.0, 63.8434*PI/180.0, phi, psi, xy_in, wsphere);`
|
||
|
||
**2D part:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2560 /* number of grid points on x axis */
|
||
#define NY 1280 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 84 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-2 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 25 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 0 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2200 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.25 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.00005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.002 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE -50.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 2 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 5.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 200.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.25 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 1 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 6.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 6.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-6.0, -3.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.075 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 9000.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.025 /* scaling factor of radial component */
|
||
#define RMAX 1.5 /* max value of radial component */
|
||
#define RMIN 0.5 /* min value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.1 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**3D part:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2560 /* number of grid points on x axis */
|
||
#define NY 1280 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 84 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-2 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 25 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 0 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2200 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.25 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.00005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.002 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
// #define ROTATE_ANGLE 180.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_ANGLE -50.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 2 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 5.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 200.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.25 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 1 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 6.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 6.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-6.0, -3.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.075 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 9000.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.025 /* scaling factor of radial component */
|
||
#define RMAX 1.5 /* max value of radial component */
|
||
#define RMIN 0.5 /* min value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.1 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 28 November 23 - Compressing charged molecules: energy and density ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 27 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.55 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 85 /* number of grid point for grid of disks */
|
||
#define NGRIDY 43 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4000 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 1
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 13
|
||
#define PLOT_B 1 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
#define COLOR_PALETTE_DIFFNEIGH 10 /* Color palette for different neighbours representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 30000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 50.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 20.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 3000.0 /* damping coefficient of particles */
|
||
#define INITIAL_DAMPING 5000.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 0.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.00004 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 2.0e10 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 2.5 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5.33333333333333 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 3.0 /* charge of particles of second type */
|
||
#define INCREASE_E 0 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 100000.0 /* factor by which to increase electric field */
|
||
#define INCREASE_B 0 /* set to 1 to increase magnetic field */
|
||
#define BFIELD_FACTOR 1000.0 /* factor by which to increase magnetic field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 1 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 1000 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 27 November 23 - Numerical aperture in a two-lenses set-up ###
|
||
|
||
**Program:** `wave_billiard.c`
|
||
|
||
**Initial condition in function `animation()`:**
|
||
|
||
```
|
||
init_wave_flat(phi, psi, xy_in);
|
||
|
||
if ((ADD_OSCILLATING_SOURCE)&&(i%OSCILLATING_SOURCE_PERIOD == 1))
|
||
{
|
||
if (ALTERNATE_OSCILLATING_SOURCE) sign = -sign;
|
||
add_circular_wave(sign, -1.75, 0.16, phi, psi, xy_in);
|
||
add_circular_wave(sign, -1.75, -0.16, phi, psi, xy_in);
|
||
}
|
||
```
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define VARIABLE_IOR 1 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.5 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 3840 /* number of grid points on x axis */
|
||
#define NY 2300 /* number of grid points on y axis */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.197916667
|
||
#define YMAX 1.197916667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 1 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 1.0 /* scaling for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 63 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 103 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns (beta) */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 1.5 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.7 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 6 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 60 /* number of grid point for grid of disks */
|
||
#define NGRIDY 10 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 0 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.024 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 1.0 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.25 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.1 /* Courant number */
|
||
#define COURANTB 0.063 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 0.0 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT -400.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 20 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 2 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 2 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 25 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2500 /* number of frames of movie */
|
||
#define NVID 7 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 100 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* print speed of moving source */
|
||
#define PRINT_FREQUENCY 0 /* print frequency (for phased array) */
|
||
|
||
#define PAUSE 200 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 1.0 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.00001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.025 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define PLOT 0
|
||
|
||
#define PLOT_B 5 /* plot type for second movie */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 17 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 12 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define PHASE_FACTOR 1.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 100.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 1.5 /* shift of colors on log scale */
|
||
#define FLUX_SCALE 5.0e3 /* scaling factor for enegy flux represtnation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 180.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -180.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 1.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 0.4 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 0 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
/* for compatibility with sub_wave and sub_maze */
|
||
#define ADD_POTENTIAL 0
|
||
#define POT_MAZE 7
|
||
#define POTENTIAL 0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 0 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
```
|
||
**Part 2:**
|
||
|
||
```
|
||
#define MU 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MID_FRAMES 200 /* number of still frames between parts of two-part movie */
|
||
|
||
```
|
||
|
||
### 26 November 23 - The Hall effect with an increasing magnetic field ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 1 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 27 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 70 /* number of grid point for grid of disks */
|
||
#define NGRIDY 35 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3400 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 13
|
||
#define PLOT_B 14 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 0 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 3000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 10.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 1 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 1 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5.33333333333333 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 2.0 /* charge of particles of second type */
|
||
#define INCREASE_E 0 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 100000.0 /* factor by which to increase electric field */
|
||
#define INCREASE_B 1 /* set to 1 to increase magnetic field */
|
||
#define BFIELD_FACTOR 1000.0 /* factor by which to increase magnetic field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 25 November 23 - Numerical aperture of a lens in a wall ###
|
||
|
||
**Program:** `wave_billiard.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_wave_flat(phi, psi, xy_in);`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define VARIABLE_IOR 1 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.5 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 3840 /* number of grid points on x axis */
|
||
#define NY 2300 /* number of grid points on y axis */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.197916667
|
||
#define YMAX 1.197916667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 1 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 1.0 /* scaling for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 62 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 103 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns (beta) */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 2.0 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.97 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 6 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 60 /* number of grid point for grid of disks */
|
||
#define NGRIDY 10 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 0 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.024 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 1.0 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.25 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.1 /* Courant number */
|
||
#define COURANTB 0.046666666667 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 0.0 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT -400.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 20 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 2 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 2 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 25 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2500 /* number of frames of movie */
|
||
#define NVID 7 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 100 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* print speed of moving source */
|
||
#define PRINT_FREQUENCY 0 /* print frequency (for phased array) */
|
||
|
||
#define PAUSE 200 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 1.0 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.00001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.025 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define PLOT 0
|
||
|
||
#define PLOT_B 5 /* plot type for second movie */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 17 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 12 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define PHASE_FACTOR 1.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 100.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 1.5 /* shift of colors on log scale */
|
||
#define FLUX_SCALE 5.0e3 /* scaling factor for enegy flux represtnation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 180.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -180.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 1.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 0.4 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 0 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
/* for compatibility with sub_wave and sub_maze */
|
||
#define ADD_POTENTIAL 0
|
||
#define POT_MAZE 7
|
||
#define POTENTIAL 0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 0 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
```
|
||
|
||
**Part 2:**
|
||
|
||
```
|
||
#define MU 0.25 /* parameter controlling the dimensions of domain */
|
||
|
||
```
|
||
|
||
|
||
### 24 November 23 - Compressing charged molecules ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 27 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.55 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 85 /* number of grid point for grid of disks */
|
||
#define NGRIDY 43 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4000 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 1
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 14 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 3000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 50.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 20.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 3000.0 /* damping coefficient of particles */
|
||
#define INITIAL_DAMPING 5000.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 0.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.00004 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 2.0e10 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5.33333333333333 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 3.0 /* charge of particles of second type */
|
||
#define INCREASE_E 0 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 100000.0 /* factor by which to increase electric field */
|
||
#define INCREASE_B 0 /* set to 1 to increase magnetic field */
|
||
#define BFIELD_FACTOR 1000.0 /* factor by which to increase magnetic field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 1 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 1000 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 23 November 23 - Solving a maze with wavy walls on the sphere using waves ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:**
|
||
|
||
```
|
||
init_wave_flat_sphere(phi, psi, xy_in, wsphere);
|
||
for (j=0; j<6; j++)
|
||
add_circular_wave_sphere(1.0, (double)j*PI/3.0, 0.925*PID, phi, psi, xy_in, wsphere);
|
||
|
||
if ((ADD_OSCILLATING_SOURCE)&&(i%OSCILLATING_SOURCE_PERIOD == 1))
|
||
{
|
||
if (ALTERNATE_OSCILLATING_SOURCE) sign = -sign;
|
||
for (j=0; j<6; j++)
|
||
add_circular_wave_sphere(sign, (double)j*PI/3.0, 0.925*PID, phi, psi, xy_in, wsphere);
|
||
}
|
||
|
||
```
|
||
|
||
**2D version:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
// #define JULIA_IM 0.45 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 102 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 25 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 0 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3000 /* number of frames of movie */
|
||
#define NVID 6 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.75 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 109
|
||
#define CPLOT_B 109 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 1 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 1.0 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 2.0 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 17 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 50.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.25 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 1 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 6.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 20.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-7.0, -2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.015 /* scaling factor of radial component */
|
||
#define RMAX 1.5 /* max value of radial component */
|
||
#define RMIN 1.0 /* min value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.1 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**3D version:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 102 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 25 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 0 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3000 /* number of frames of movie */
|
||
#define NVID 6 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.75 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 109
|
||
#define CPLOT_B 109 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 1 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 1.0 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 2.0 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 17 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 50.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.25 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 1 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 6.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 20.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-7.0, -2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.015 /* scaling factor of radial component */
|
||
#define RMAX 1.5 /* max value of radial component */
|
||
#define RMIN 1.0 /* min value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.1 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 22 November 23 - The Hall effect with an increasing electric field ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 1 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 27 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 70 /* number of grid point for grid of disks */
|
||
#define NGRIDY 35 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3400 /* number of frames of movie */
|
||
// #define NSTEPS 500 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 13
|
||
#define PLOT_B 14 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 0 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 3000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 10.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 1 /* set to 1 to add an electric field */
|
||
#define EFIELD 5.33333333333333 /* value of electric field */
|
||
#define ADD_BFIELD 1 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 2500.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 2.0 /* charge of particles of second type */
|
||
#define INCREASE_E 1 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 100000.0 /* factor by which to increase electric field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 21 November 23 - Numerical aperture of a lens ###
|
||
|
||
**Program:** `wave_billiard.c`
|
||
|
||
**Initial condition in function `animation()`:**
|
||
|
||
```
|
||
init_wave_flat(phi, psi, xy_in);
|
||
|
||
if ((ADD_OSCILLATING_SOURCE)&&(i%OSCILLATING_SOURCE_PERIOD == 1))
|
||
{
|
||
if (ALTERNATE_OSCILLATING_SOURCE) sign = -sign;
|
||
add_circular_wave(sign, -1.75, 0.16, phi, psi, xy_in);
|
||
add_circular_wave(sign, -1.75, -0.16, phi, psi, xy_in);
|
||
}
|
||
```
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 9 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.5 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 3840 /* number of grid points on x axis */
|
||
#define NY 2300 /* number of grid points on y axis */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.197916667
|
||
#define YMAX 1.197916667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 1 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 1.0 /* scaling for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 61 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 103 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns (beta) */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 2.0 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.97 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 6 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 60 /* number of grid point for grid of disks */
|
||
#define NGRIDY 10 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 0 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.024 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 1.0 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.25 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.1 /* Courant number */
|
||
#define COURANTB 0.046666666667 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 0.0 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT -400.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 20 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 2 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 2 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 25 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2500 /* number of frames of movie */
|
||
#define NVID 7 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 100 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* print speed of moving source */
|
||
#define PRINT_FREQUENCY 0 /* print frequency (for phased array) */
|
||
|
||
#define PAUSE 200 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 1.0 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.00001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.025 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define PLOT 0
|
||
|
||
#define PLOT_B 5 /* plot type for second movie */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 17 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 12 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define PHASE_FACTOR 1.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 100.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 1.5 /* shift of colors on log scale */
|
||
#define FLUX_SCALE 5.0e3 /* scaling factor for enegy flux represtnation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 180.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -180.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 1.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 0.4 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 0 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
/* for compatibility with sub_wave and sub_maze */
|
||
#define ADD_POTENTIAL 0
|
||
#define POT_MAZE 7
|
||
#define POTENTIAL 0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 0 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
```
|
||
**Part 2:**
|
||
|
||
```
|
||
#define MU 0.25 /* parameter controlling the dimensions of domain */
|
||
|
||
```
|
||
|
||
### 20 November 23 - Between molecules and crystals ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 24 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.4 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 90 /* number of grid point for grid of disks */
|
||
#define NGRIDY 45 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2700 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 13 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 3000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 20.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0001 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 5.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5000.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 1.0 /* charge of particles of second type */
|
||
#define INCREASE_E 0 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 200000.0 /* factor by which to increase electric field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 1 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 1 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 19 November 23 - Using waves with an oscillating source to “solve” a maze on a sphere ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:**
|
||
|
||
```
|
||
init_wave_flat_sphere(phi, psi, xy_in, wsphere);
|
||
for (j=0; j<6; j++)
|
||
add_circular_wave_sphere(1.0, (double)j*PI/3.0, 0.95*PID, phi, psi, xy_in, wsphere);
|
||
|
||
if ((ADD_OSCILLATING_SOURCE)&&(i%OSCILLATING_SOURCE_PERIOD == 1))
|
||
{
|
||
if (ALTERNATE_OSCILLATING_SOURCE) sign = -sign;
|
||
for (j=0; j<6; j++)
|
||
add_circular_wave_sphere(sign, (double)j*PI/3.0, 0.95*PID, phi, psi, xy_in, wsphere);
|
||
}
|
||
```
|
||
|
||
**3D version:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 100 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 25 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 0 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2400 /* number of frames of movie */
|
||
#define NVID 6 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.75 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 17 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 14 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 1 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 5.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 5.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-7.0, -2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.015 /* scaling factor of radial component */
|
||
#define RMAX 1.7 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**2D version:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 100 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 25 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 0 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2400 /* number of frames of movie */
|
||
#define NVID 6 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.75 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 17 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 14 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 1 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 5.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 5.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-7.0, -2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.015 /* scaling factor of radial component */
|
||
#define RMAX 1.7 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 18 November 23 - An illustration of the Hall effect ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 1 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 27 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 70 /* number of grid point for grid of disks */
|
||
#define NGRIDY 35 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2600 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 13 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 0 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 3000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 10.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 1 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 1 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 2500.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 1.0 /* charge of particles of second type */
|
||
#define INCREASE_E 0 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 200000.0 /* factor by which to increase electric field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 200.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 17 November 23 - An asteroid impact on a partially flooded Venus ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:** ` `
|
||
|
||
**2D:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 0.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 88 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
// #define B_COND 1
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2500 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 360.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 1 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {7.0, 2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 2.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**3D:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 4096 /* number of grid points on x axis */
|
||
#define NY 2048 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 0.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.25 /* scaling for Julia sets */
|
||
#define JULIA_ROT 180.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE -0.77145
|
||
#define JULIA_IM -0.10295 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 88 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4000 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 0 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 1 /* type of viewpoint trajectory */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.0 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 3.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {0.0, 8.0, 2.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.15 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 1.0 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600 /* max height of DEM */
|
||
#define DEM_MAXDEPTH -10000 /* max depth of DEM */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
|
||
#define MAXHEIGHT 7500.0 /* max sea level height */
|
||
#define MAXDEPTH 4000.0 /* max sea level depth */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 10.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define X_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define Y_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.5 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 16 November 23 - Forming “molecules” – The effect of decreasing temperature ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 24 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 80 /* number of grid point for grid of disks */
|
||
#define NGRIDY 40 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2700 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 13 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
#define COLOR_PALETTE_DIFFNEIGH 10 /* Color palette for different neighbours representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 15000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 20.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.00002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 5.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5000.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 3.0 /* charge of particles of second type */
|
||
#define INCREASE_E 0 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 200000.0 /* factor by which to increase electric field */
|
||
#define INCREASE_B 0 /* set to 1 to increase magnetic field */
|
||
#define BFIELD_FACTOR 1000.0 /* factor by which to increase magnetic field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 1 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 1000.0 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 0 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 0 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 1 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 15 November 23 - Using waves to “solve” a maze on a sphere ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_circular_wave_sphere(0.25 + PI, PID, phi, psi, xy_in, wsphere);`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 0.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 100 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2400 /* number of frames of movie */
|
||
#define NVID 6 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 1.0 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 18 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 13 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {7.0, 2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 2.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
**2D version:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 0.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 100 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2400 /* number of frames of movie */
|
||
#define NVID 6 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 1.0 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 18 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 13 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {7.0, 2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
#define VENUS_NODATA_FACTOR 0.5 /* altitude to assign to DEM points without data (fraction of mean altitude) */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 2.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 14 November 23 - Ionization of a gas by an increasing electric field ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 24 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 80 /* number of grid point for grid of disks */
|
||
#define NGRIDY 40 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3200 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 13 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 6000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 10.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 1 /* set to 1 to add an electric field */
|
||
#define EFIELD 5.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5000.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 3.0 /* charge of particles of second type */
|
||
#define INCREASE_E 1 /* set to 1 to increase electric field */
|
||
#define EFIELD_FACTOR 200000.0 /* factor by which to increase electric field */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 0.02 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 2000 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 1300 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 1 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 13 November 23 - Flooding Venus ###
|
||
|
||
**Program:** `earth_sealevel.c`
|
||
|
||
**3D:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 4096 /* number of grid points on x axis */
|
||
#define NY 2048 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 0.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.25 /* scaling for Julia sets */
|
||
#define JULIA_ROT 180.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE -0.77145
|
||
#define JULIA_IM -0.10295 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 88 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4000 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 0 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 1 /* type of viewpoint trajectory */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.0 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 3.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {0.0, 8.0, 2.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.15 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 1.0 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600 /* max height of DEM */
|
||
#define DEM_MAXDEPTH -10000 /* max depth of DEM */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
|
||
#define MAXHEIGHT 7500.0 /* max sea level height */
|
||
#define MAXDEPTH 4000.0 /* max sea level depth */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 10.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define X_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define Y_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.5 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**2D:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 4096 /* number of grid points on x axis */
|
||
#define NY 2048 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 0.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.25 /* scaling for Julia sets */
|
||
#define JULIA_ROT 180.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE -0.77145
|
||
#define JULIA_IM -0.10295 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 88 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4000 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 0 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 1 /* type of viewpoint trajectory */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.0 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 3.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {0.0, 8.0, 2.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.15 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 1.0 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 13600 /* max height of DEM */
|
||
#define DEM_MAXDEPTH -10000 /* max depth of DEM */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
|
||
#define MAXHEIGHT 7500.0 /* max sea level height */
|
||
#define MAXDEPTH 4000.0 /* max sea level depth */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 10.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define X_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define Y_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.5 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
|
||
### 12 November 23 - Forming “molecules" by increasing the Coulomb interaction ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 24 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 85 /* number of grid point for grid of disks */
|
||
#define NGRIDY 43 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2500 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 1 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 1 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 5000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 1.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5000.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 3.0 /* charge of particles of second type */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 0.02 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 2000 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 1300 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 1 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 1 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 11 November 23 - An asteroid impact on a partially flooded Moon ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_circular_wave_sphere(0.25, 0.5*PID, phi, psi, xy_in, wsphere);`
|
||
|
||
**Part 1:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 87 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2200 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE -45.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 2 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-7.0, -2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 15000.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 2.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**Part 2:**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 87 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2200 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.0005 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.02 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE -45.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 2 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-7.0, -2.0, 4.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.05 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 15000.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define PLANET_SEALEVEL 2500.0 /* sea level for flooded planet */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 2.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 10 November 23 - Video #1000 ###
|
||
|
||
**Program:** ` `
|
||
|
||
**Initial condition in function `animation()`:** ` `
|
||
|
||
```
|
||
|
||
```
|
||
|
||
### 9 November 23 - Particles of larger charge forming “molecules” ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 24 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 70 /* number of grid point for grid of disks */
|
||
#define NGRIDY 35 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3800 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 1 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 0 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 5000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 25.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5000.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 4.0 /* charge of particles of second type */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 0.02 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 2000 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 1300 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 1 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 8 November 23 - Flooding the Moon ###
|
||
|
||
**Program:** `earth_sealevel.c` (variant of `wave_sphere.c`)
|
||
|
||
**Part 1**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.25 /* scaling for Julia sets */
|
||
#define JULIA_ROT 180.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE -0.77145
|
||
#define JULIA_IM -0.10295 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 87 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4500 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 0 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 1 /* type of viewpoint trajectory */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.0 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 3.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-5.0, -5.0, 3.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.1 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 1.0 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 15000 /* max height of DEM */
|
||
#define DEM_MAXDEPTH -10000 /* max depth of DEM */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
|
||
#define MAXHEIGHT 5000.0 /* max sea level height */
|
||
#define MAXDEPTH 4000.0 /* max sea level depth */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 10.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define X_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define Y_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.5 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
**Part 2**
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN 180.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.25 /* scaling for Julia sets */
|
||
#define JULIA_ROT 180.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE -0.77145
|
||
#define JULIA_IM -0.10295 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 87 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4500 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 100 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 720.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 0 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 1 /* type of viewpoint trajectory */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.0 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 3.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-5.0, -5.0, 3.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.1 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 1.0 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 15000 /* max height of DEM */
|
||
#define DEM_MAXDEPTH -10000 /* max depth of DEM */
|
||
#define PLANET_SEALEVEL 0.0 /* sea level for flooded planet */
|
||
|
||
#define MAXHEIGHT 5000.0 /* max sea level height */
|
||
#define MAXDEPTH 4000.0 /* max sea level depth */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 10.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.8 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define X_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define Y_SCALING_FACTOR 2.2 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.5 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 7 November 23 - An improved simulation of the Coandă effect - Kinetic energy and velocity ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.03 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.1 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 1 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 26 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 2 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 1 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 1 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.3 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.014 /* parameter controlling radius of particles */
|
||
#define MU_B 0.01 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 101 /* number of grid point for grid of disks */
|
||
#define NGRIDY 47 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3100 /* number of frames of movie */
|
||
#define NVID 15 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 13
|
||
#define PLOT_B 14 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT 0.0 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 0 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 80000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 1.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 7.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 10.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 0.05 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 7.5 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 1000.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 1 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 0 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.8 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 1 /* set to 1 to add an electric field */
|
||
#define EFIELD 10000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 1000.0 /* value of magnetic field */
|
||
#define CHARGE 0.0 /* charge of particles of first type */
|
||
#define CHARGE_B 1.0 /* charge of particles of second type */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 0 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 0.02 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 2000 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 1300 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_Y0 -0.5 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 0 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 6 November 23 - The Tambora eruption - 3D view of the waves of the event that caused the year without a summer ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_circular_wave_sphere(-118.0*PI/180.0, -8.25*PI/180.0, phi, psi, xy_in, wsphere);`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2560 /* number of grid points on x axis */
|
||
#define NY 1280 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN -75.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 84 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3700 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 0 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 0 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 450.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 11 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE -45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-6.0, 3.0, 0.0}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.1 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 0 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 10 /* number of smoothening steps */
|
||
#define DEM_MAXHEIGHT 8000 /* max height of DEM (estimated from Everest) */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 1.5 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 4 November 23 - Charged particles forming “molecules” ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.01 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.17 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 0 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 24 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 0 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 12 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 12 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.2 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.008 /* parameter controlling radius of particles */
|
||
#define MU_B 0.018 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 70 /* number of grid point for grid of disks */
|
||
#define NGRIDY 35 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 4200 /* number of frames of movie */
|
||
#define NVID 25 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 1 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT -0.5 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 0 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 5000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 25.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 5.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 5.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 50.0 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 25.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 400.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 0 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 1 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.2 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 0 /* set to 1 to add an electric field */
|
||
#define EFIELD 50000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 5000.0 /* value of magnetic field */
|
||
#define CHARGE -1.0 /* charge of particles of first type */
|
||
#define CHARGE_B 2.0 /* charge of particles of second type */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 1 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 0.02 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 2000 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 1300 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 1 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 1.5 /* initial position of segments */
|
||
#define SEGMENTS_Y0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 1 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 3 November 23 - The Tambora eruption: What waves of the event causing the year without a summer may have looked like ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_circular_wave_sphere(-118.0*PI/180.0, -8.25*PI/180.0, phi, psi, xy_in, wsphere);`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2560 /* number of grid points on x axis */
|
||
#define NY 1280 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN -75.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 84 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3700 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 75.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 2 /* type of viewpoint trajectory */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-5.0, 8.0, -7.0}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.1 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 0 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 10 /* number of smoothening steps */
|
||
#define DEM_MAXHEIGHT 8000 /* max height of DEM (estimated from Everest) */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 10.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.5 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
### 2 November 23 - An improved simulation of the Coandă effect ###
|
||
|
||
**Program:** `lennardjones.c`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory while saving frames */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
#define TIME_LAPSE 0 /* set to 1 to add a time-lapse movie at the end */
|
||
/* so far incompatible with double movie */
|
||
#define TIME_LAPSE_FACTOR 3 /* factor of time-lapse movie */
|
||
#define TIME_LAPSE_FIRST 1 /* set to 1 to show time-lapse version first */
|
||
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save time series of particle positions */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1600 /* window width */
|
||
#define WINHEIGHT 900 /* window height */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.125
|
||
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define INITXMIN -2.0
|
||
#define INITXMAX 2.03 /* x interval for initial condition */
|
||
#define INITYMIN -1.1
|
||
#define INITYMAX 1.1 /* y interval for initial condition */
|
||
|
||
#define ADDXMIN -1.97
|
||
#define ADDXMAX -0.8 /* x interval for adding particles */
|
||
#define ADDYMIN -1.125
|
||
#define ADDYMAX 1.125 /* y interval for adding particles */
|
||
|
||
|
||
#define BCXMIN -2.0
|
||
#define BCXMAX 2.0 /* x interval for boundary condition */
|
||
#define BCYMIN -1.125
|
||
#define BCYMAX 1.125 /* y interval for boundary condition */
|
||
|
||
#define OBSXMIN -2.0
|
||
#define OBSXMAX 2.0 /* x interval for motion of obstacle */
|
||
|
||
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_ljones.c */
|
||
|
||
#define ADD_INITIAL_PARTICLES 0 /* set to 1 to add a second type of particles */
|
||
#define CIRCLE_PATTERN_B 1 /* pattern of circles for additional particles */
|
||
|
||
#define ADD_FIXED_OBSTACLES 0 /* set to 1 do add fixed circular obstacles */
|
||
#define OBSTACLE_PATTERN 4 /* pattern of obstacles, see list in global_ljones.c */
|
||
|
||
#define ADD_FIXED_SEGMENTS 1 /* set to 1 to add fixed segments as obstacles */
|
||
#define SEGMENT_PATTERN 26 /* pattern of repelling segments, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE 3 /* shape of rocket combustion chamber, see list in global_ljones.c */
|
||
#define ROCKET_SHAPE_B 3 /* shape of second rocket */
|
||
#define NOZZLE_SHAPE 6 /* shape of nozzle, see list in global_ljones.c */
|
||
#define NOZZLE_SHAPE_B 6 /* shape of nozzle for second rocket, see list in global_ljones.c */
|
||
|
||
#define TWO_TYPES 1 /* set to 1 to have two types of particles */
|
||
#define TYPE_PROPORTION 0.5 /* proportion of particles of first type */
|
||
#define TWOTYPE_CONFIG 2 /* choice of types, see TTC_ list in global_ljones.c */
|
||
#define SYMMETRIZE_FORCE 1 /* set to 1 to symmetrize two-particle interaction, only needed if particles are not all the same */
|
||
#define CENTER_PX 0 /* set to 1 to center horizontal momentum */
|
||
#define CENTER_PY 0 /* set to 1 to center vertical momentum */
|
||
#define CENTER_PANGLE 0 /* set to 1 to center angular momentum */
|
||
|
||
#define INTERACTION 1 /* particle interaction, see list in global_ljones.c */
|
||
#define INTERACTION_B 1 /* particle interaction for second type of particle, see list in global_ljones.c */
|
||
#define SPIN_INTER_FREQUENCY 4.0 /* angular frequency of spin-spin interaction */
|
||
#define SPIN_INTER_FREQUENCY_B 4.0 /* angular frequency of spin-spin interaction for second particle type */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 100 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define PDISC_DISTANCE 2.8 /* minimal distance in Poisson disc process, controls density of particles */
|
||
#define PDISC_CANDIDATES 100 /* number of candidates in construction of Poisson disc process */
|
||
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.3 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.014 /* parameter controlling radius of particles */
|
||
#define MU_B 0.01 /* parameter controlling radius of particles of second type */
|
||
#define NPOLY 40 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define AWEDGE 0.5 /* opening angle of wedge, in units of Pi/2 */
|
||
#define MDEPTH 4 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 101 /* number of grid point for grid of disks */
|
||
#define NGRIDY 47 /* number of grid point for grid of disks */
|
||
#define EHRENFEST_RADIUS 0.9 /* radius of container for Ehrenfest urn configuration */
|
||
#define EHRENFEST_WIDTH 0.035 /* width of tube for Ehrenfest urn configuration */
|
||
#define TWO_CIRCLES_RADIUS_RATIO 0.8 /* ratio of radii for S_TWO_CIRCLES_EXT segment configuration */
|
||
#define DAM_WIDTH 0.05 /* width of dam for S_DAM segment configuration */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 3100 /* number of frames of movie */
|
||
#define NVID 15 /* number of iterations between images displayed on screen */
|
||
#define NSEG 25 /* number of segments of boundary of circles */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define OBSTACLE_INITIAL_TIME 150 /* time after which to start moving obstacle */
|
||
#define BOUNDARY_WIDTH 1 /* width of particle boundary */
|
||
#define LINK_WIDTH 2 /* width of links between particles */
|
||
#define CONTAINER_WIDTH 4 /* width of container boundary */
|
||
|
||
#define PAUSE 1000 /* number of frames after which to pause */
|
||
#define PSLEEP 1 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 250 /* number of still frames at end of movie */
|
||
|
||
/* Boundary conditions, see list in global_ljones.c */
|
||
|
||
#define BOUNDARY_COND 3
|
||
|
||
/* Plot type, see list in global_ljones.c */
|
||
|
||
#define PLOT 5
|
||
#define PLOT_B 11 /* plot type for second movie */
|
||
|
||
#define DRAW_BONDS 1 /* set to 1 to draw bonds between neighbours */
|
||
#define COLOR_BONDS 1 /* set to 1 to color bonds according to length */
|
||
#define FILL_TRIANGLES 0 /* set to 1 to fill triangles between neighbours */
|
||
#define ALTITUDE_LINES 0 /* set to 1 to add horizontal lines to show altitude */
|
||
#define COLOR_SEG_GROUPS 0 /* set to 1 to collor segment groups differently */
|
||
#define N_PARTICLE_COLORS 200 /* number of colors for P_NUMBER color scheme */
|
||
#define INITIAL_POS_TYPE 0 /* type of initial position dependence */
|
||
#define ERATIO 0.995 /* ratio for time-averaging in P_EMEAN color scheme */
|
||
#define DRATIO 0.995 /* ratio for time-averaging in P_DIRECT_EMEAN color scheme */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 10 /* Color palette, see list in global_ljones.c */
|
||
#define COLOR_PALETTE_EKIN 10 /* Color palette for kinetic energy */
|
||
#define COLOR_PALETTE_ANGLE 10 /* Color palette for angle representation */
|
||
#define COLOR_PALETTE_DIRECTION 17 /* Color palette for direction representation */
|
||
#define COLOR_PALETTE_INITIAL_POS 0 /* Color palette for initial position representation */
|
||
|
||
#define BLACK 1 /* background */
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_ljones.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 220.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -50.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
#define COLOR_HUESHIFT 0.0 /* shift in color hue (for some cyclic palettes) */
|
||
|
||
#define PRINT_PARAMETERS 0 /* set to 1 to print certain parameters */
|
||
#define PRINT_TEMPERATURE 0 /* set to 1 to print current temperature */
|
||
#define PRINT_ANGLE 0 /* set to 1 to print obstacle orientation */
|
||
#define PRINT_OMEGA 0 /* set to 1 to print angular speed */
|
||
#define PRINT_PARTICLE_SPEEDS 0 /* set to 1 to print average speeds/momenta of particles */
|
||
#define PRINT_SEGMENTS_SPEEDS 0 /* set to 1 to print velocity of moving segments */
|
||
#define PRINT_SEGMENTS_FORCE 0 /* set to 1 to print force on segments */
|
||
#define FORCE_FACTOR 0.1 /* factor controlling length of force vector */
|
||
|
||
/* particle properties */
|
||
|
||
#define ENERGY_HUE_MIN 330.0 /* color of original particle */
|
||
#define ENERGY_HUE_MAX 50.0 /* color of saturated particle */
|
||
#define PARTICLE_HUE_MIN 359.0 /* color of original particle */
|
||
#define PARTICLE_HUE_MAX 0.0 /* color of saturated particle */
|
||
#define PARTICLE_EMAX 1000.0 /* energy of particle with hottest color */
|
||
#define HUE_TYPE0 280.0 /* hue of particles of type 0 */
|
||
#define HUE_TYPE1 60.0 /* hue of particles of type 1 */
|
||
#define HUE_TYPE2 140.0 /* hue of particles of type 2 */
|
||
#define HUE_TYPE3 200.0 /* hue of particles of type 3 */
|
||
|
||
#define RANDOM_RADIUS 0 /* set to 1 for random circle radius */
|
||
#define DT_PARTICLE 3.0e-6 /* time step for particle displacement */
|
||
#define KREPEL 1.0 /* constant in repelling force between particles */
|
||
#define EQUILIBRIUM_DIST 7.0 /* Lennard-Jones equilibrium distance */
|
||
#define EQUILIBRIUM_DIST_B 10.0 /* Lennard-Jones equilibrium distance for second type of particle */
|
||
#define REPEL_RADIUS 15.0 /* radius in which repelling force acts (in units of particle radius) */
|
||
#define DAMPING 0.02 /* damping coefficient of particles */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define INITIAL_DAMPING 5.0 /* damping coefficient of particles during initial phase */
|
||
#define DAMPING_ROT 100.0 /* dampint coefficient for rotation of particles */
|
||
#define PARTICLE_MASS 1.0 /* mass of particle of radius MU */
|
||
#define PARTICLE_MASS_B 7.5 /* mass of particle of radius MU */
|
||
#define PARTICLE_INERTIA_MOMENT 0.2 /* moment of inertia of particle */
|
||
#define PARTICLE_INERTIA_MOMENT_B 0.02 /* moment of inertia of second type of particle */
|
||
#define V_INITIAL 1000.0 /* initial velocity range */
|
||
#define OMEGA_INITIAL 10.0 /* initial angular velocity range */
|
||
#define VICSEK_VMIN 1.0 /* minimal speed of particles in Vicsek model */
|
||
#define VICSEK_VMAX 40.0 /* minimal speed of particles in Vicsek model */
|
||
|
||
#define V_INITIAL_TYPE 1 /* type of initial speed distribution (see VI_ in global_ljones.c) */
|
||
|
||
#define THERMOSTAT 0 /* set to 1 to switch on thermostat */
|
||
#define VARY_THERMOSTAT 0 /* set to 1 for time-dependent thermostat schedule */
|
||
#define SIGMA 5.0 /* noise intensity in thermostat */
|
||
#define BETA 0.0002 /* initial inverse temperature */
|
||
#define MU_XI 0.01 /* friction constant in thermostat */
|
||
#define KSPRING_BOUNDARY 1.0e7 /* confining harmonic potential outside simulation region */
|
||
#define KSPRING_OBSTACLE 1.0e11 /* harmonic potential of obstacles */
|
||
#define NBH_DIST_FACTOR 3.8 /* radius in which to count neighbours */
|
||
#define GRAVITY 0.0 /* gravity acting on all particles */
|
||
#define GRAVITY_X 0.0 /* horizontal gravity acting on all particles */
|
||
#define CIRCULAR_GRAVITY 0 /* set to 1 to have gravity directed to center */
|
||
#define INCREASE_GRAVITY 0 /* set to 1 to increase gravity during the simulation */
|
||
#define GRAVITY_SCHEDULE 2 /* type of gravity schedule, see list in global_ljones.c */
|
||
#define GRAVITY_FACTOR 100.0 /* factor by which to increase gravity */
|
||
#define GRAVITY_INITIAL_TIME 200 /* time at start of simulation with constant gravity */
|
||
#define GRAVITY_RESTORE_TIME 700 /* time at end of simulation with gravity restored to initial value */
|
||
#define KSPRING_VICSEK 0.2 /* spring constant for I_VICSEK_SPEED interaction */
|
||
#define VICSEK_REPULSION 10.0 /* repulsion between particles in Vicsek model */
|
||
|
||
#define ADD_EFIELD 1 /* set to 1 to add an electric field */
|
||
#define EFIELD 10000.0 /* value of electric field */
|
||
#define ADD_BFIELD 0 /* set to 1 to add a magnetic field */
|
||
#define BFIELD 1000.0 /* value of magnetic field */
|
||
#define CHARGE 0.0 /* charge of particles of first type */
|
||
#define CHARGE_B 1.0 /* charge of particles of second type */
|
||
|
||
#define ROTATION 0 /* set to 1 to include rotation of particles */
|
||
#define COUPLE_ANGLE_TO_THERMOSTAT 1 /* set to 1 to couple angular degrees of freedom to thermostat */
|
||
#define DIMENSION_FACTOR 1.0 /* scaling factor taking into account number of degrees of freedom */
|
||
#define KTORQUE 50.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_BOUNDARY 1.0e6 /* constant in torque from the boundary */
|
||
#define KTORQUE_B 10.0 /* force constant in angular dynamics */
|
||
#define KTORQUE_DIFF 150.0 /* force constant in angular dynamics for different particles */
|
||
#define DRAW_SPIN 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_SPIN_B 0 /* set to 1 to draw spin vectors of particles */
|
||
#define DRAW_CROSS 0 /* set to 1 to draw cross on particles of second type */
|
||
#define SPIN_RANGE 10.0 /* range of spin-spin interaction */
|
||
#define SPIN_RANGE_B 5.0 /* range of spin-spin interaction for second type of particle */
|
||
#define QUADRUPOLE_RATIO 0.6 /* anisotropy in quadrupole potential */
|
||
|
||
#define INCREASE_BETA 0 /* set to 1 to increase BETA during simulation */
|
||
#define BETA_FACTOR 0.02 /* factor by which to change BETA during simulation */
|
||
#define N_TOSCILLATIONS 1.5 /* number of temperature oscillations in BETA schedule */
|
||
#define NO_OSCILLATION 1 /* set to 1 to have exponential BETA change only */
|
||
#define MIDDLE_CONSTANT_PHASE 2000 /* final phase in which temperature is constant */
|
||
#define FINAL_DECREASE_PHASE 1300 /* final phase in which temperature decreases */
|
||
#define FINAL_CONSTANT_PHASE -1 /* final phase in which temperature is constant */
|
||
|
||
#define DECREASE_CONTAINER_SIZE 0 /* set to 1 to decrease size of container */
|
||
#define SYMMETRIC_DECREASE 0 /* set tp 1 to decrease container symmetrically */
|
||
#define COMPRESSION_RATIO 0.3 /* final size of container */
|
||
#define RESTORE_CONTAINER_SIZE 1 /* set to 1 to restore container to initial size at end of simulation */
|
||
#define RESTORE_TIME 700 /* time before end of sim at which to restore size */
|
||
|
||
#define MOVE_OBSTACLE 0 /* set to 1 to have a moving obstacle */
|
||
#define CENTER_VIEW_ON_OBSTACLE 0 /* set to 1 to center display on moving obstacle */
|
||
#define RESAMPLE_Y 0 /* set to 1 to resample y coordinate of moved particles (for shock waves) */
|
||
#define NTRIALS 2000 /* number of trials when resampling */
|
||
#define OBSTACLE_RADIUS 0.15 /* radius of obstacle for circle boundary conditions */
|
||
#define FUNNEL_WIDTH 0.25 /* funnel width for funnel boundary conditions */
|
||
#define OBSTACLE_XMIN 0.0 /* initial position of obstacle */
|
||
#define OBSTACLE_XMAX 3.0 /* final position of obstacle */
|
||
#define RECORD_PRESSURES 0 /* set to 1 to record pressures on obstacle */
|
||
#define N_PRESSURES 100 /* number of intervals to record pressure */
|
||
#define N_P_AVERAGE 100 /* size of pressure averaging window */
|
||
#define N_T_AVERAGE 1 /* size of temperature averaging window */
|
||
#define MAX_PRESSURE 3.0e10 /* pressure shown in "hottest" color */
|
||
#define PARTIAL_THERMO_COUPLING 0 /* set to 1 to couple only some particles to thermostat */
|
||
#define PARTIAL_THERMO_REGION 1 /* region for partial thermostat coupling (see list in global_ljones.c) */
|
||
#define PARTIAL_THERMO_SHIFT 0.2 /* distance from obstacle at the right of which particles are coupled to thermostat */
|
||
#define PARTIAL_THERMO_WIDTH 0.5 /* vertical size of partial thermostat coupling */
|
||
#define PARTIAL_THERMO_HEIGHT 0.25 /* vertical size of partial thermostat coupling */
|
||
|
||
#define INCREASE_KREPEL 0 /* set to 1 to increase KREPEL during simulation */
|
||
#define KREPEL_FACTOR 1000.0 /* factor by which to change KREPEL during simulation */
|
||
|
||
#define PART_AT_BOTTOM 0 /* set to 1 to include "seed" particles at bottom */
|
||
#define MASS_PART_BOTTOM 10000.0 /* mass of particles at bottom */
|
||
#define NPART_BOTTOM 100 /* number of particles at the bottom */
|
||
|
||
#define ADD_PARTICLES 0 /* set to 1 to add particles */
|
||
#define ADD_TIME 0 /* time at which to add first particle */
|
||
#define ADD_PERIOD 10 /* time interval between adding further particles */
|
||
#define N_ADD_PARTICLES 2 /* number of particles to add */
|
||
#define FINAL_NOADD_PERIOD 0 /* final period where no particles are added */
|
||
#define SAFETY_FACTOR 2.0 /* no particles are added at distance less than MU*SAFETY_FACTOR of other particles */
|
||
|
||
#define TRACER_PARTICLE 0 /* set to 1 to have a tracer particle */
|
||
#define N_TRACER_PARTICLES 3 /* number of tracer particles */
|
||
#define TRAJECTORY_LENGTH 8000 /* length of recorded trajectory */
|
||
#define TRACER_PARTICLE_MASS 4.0 /* relative mass of tracer particle */
|
||
#define TRAJECTORY_WIDTH 3 /* width of tracer particle trajectory */
|
||
|
||
#define ROTATE_BOUNDARY 0 /* set to 1 to rotate the repelling segments */
|
||
#define SMOOTH_ROTATION 1 /* set to 1 to update segments at each time step (rather than at each movie frame) */
|
||
#define ROTATION_SCHEDULE 0 /* time-dependence of rotation angle, see ROT_* in global_ljones.c */
|
||
#define PERIOD_ROTATE_BOUNDARY 1000 /* period of rotating boundary */
|
||
#define ROTATE_INITIAL_TIME 300 /* initial time without rotation */
|
||
#define ROTATE_FINAL_TIME 300 /* final time without rotation */
|
||
#define ROTATE_CHANGE_TIME 0.5 /* relative duration of acceleration/deceleration phases */
|
||
#define OMEGAMAX -2.0*PI /* maximal rotation speed */
|
||
|
||
#define MOVE_BOUNDARY 0 /* set to 1 to move repelling segments, due to force from particles */
|
||
#define SEGMENTS_MASS 40.0 /* mass of collection of segments */
|
||
#define DEACTIVATE_SEGMENT 1 /* set to 1 to deactivate last segment after a certain time */
|
||
#define SEGMENT_DEACTIVATION_TIME 20 /* time at which to deactivate last segment */
|
||
#define RELEASE_ROCKET_AT_DEACTIVATION 0 /* set to 1 to limit segments velocity before segment release */
|
||
#define SEGMENTS_X0 0.0 /* initial position of segments */
|
||
#define SEGMENTS_Y0 -0.5 /* initial position of segments */
|
||
#define SEGMENTS_VX0 0.0 /* initial velocity of segments */
|
||
#define SEGMENTS_VY0 0.0 /* initial velocity of segments */
|
||
#define DAMP_SEGS_AT_NEGATIVE_Y 0 /* set to 1 to dampen segments when y coordinate is negative */
|
||
#define SHOW_SEGMENTS_PRESSURE 0 /* set to 1 to show (averaged) pressure acting on segments */
|
||
#define SEGMENT_PMAX 7.5e7 /* pressure of segment with hottest color */
|
||
#define P_AVRG_FACTOR 0.02 /* factor in computation of mean pressure */
|
||
|
||
#define MOVE_SEGMENT_GROUPS 0 /* set to 1 to group segments into moving units */
|
||
#define SEGMENT_GROUP_MASS 500.0 /* mass of segment group */
|
||
#define SEGMENT_GROUP_I 1000.0 /* moment of inertia of segment group */
|
||
#define SEGMENT_GROUP_DAMPING 0.0 /* damping of segment groups */
|
||
#define GROUP_REPULSION 0 /* set to 1 for groups of segments to repel each other */
|
||
#define KSPRING_GROUPS 5.0e11 /* harmonic potential between segment groups */
|
||
#define GROUP_WIDTH 0.05 /* interaction width of groups */
|
||
#define GROUP_G_REPEL 0 /* set to 1 to add repulsion between centers of mass of groups */
|
||
#define GROUP_G_REPEL_RADIUS 1.2 /* radius within which centers of mass of groups repel each other */
|
||
#define TRACK_SEGMENT_GROUPS 0 /* set to 1 for view to track group of segments */
|
||
#define TRACK_X_PADDING 2.0 /* distance from x boundary where tracking starts */
|
||
|
||
#define POSITION_DEPENDENT_TYPE 0 /* set to 1 to make particle type depend on initial position */
|
||
#define POSITION_Y_DEPENDENCE 0 /* set to 1 for the separation between particles to be horizontal */
|
||
#define POSITION_DEP_SIGN -1.0 /* sign in position dependence condition */
|
||
#define POSITION_DEP_X -0.625 /* threshold value for position-dependent type */
|
||
#define PRINT_ENTROPY 0 /* set to 1 to compute entropy */
|
||
|
||
#define REACTION_DIFFUSION 0 /* set to 1 to simulate a chemical reaction (particles may change type) */
|
||
#define RD_REACTION 16 /* type of reaction, see list in global_ljones.c */
|
||
#define RD_TYPES 5 /* number of types in reaction-diffusion equation */
|
||
#define RD_INITIAL_COND 9 /* initial condition of particles */
|
||
#define REACTION_DIST 4.0 /* maximal distance for reaction to occur */
|
||
#define REACTION_PROB 1.0 /* probability controlling reaction term */
|
||
#define DISSOCIATION_PROB 0.002 /* probability controlling dissociation reaction */
|
||
#define CENTER_COLLIDED_PARTICLES 0 /* set to 1 to recenter particles upon reaction (may interfere with thermostat) */
|
||
#define EXOTHERMIC 1 /* set to 1 to make reaction exo/endothermic */
|
||
#define DELTA_EKIN 2000.0 /* change of kinetic energy in reaction */
|
||
#define COLLISION_TIME 15 /* time during which collisions are shown */
|
||
|
||
#define CHANGE_RADIUS 0 /* set to 1 to change particle radius during simulation */
|
||
#define MU_RATIO 0.666666667 /* ratio by which to increase radius */
|
||
|
||
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print total number of particles */
|
||
#define PLOT_PARTICLE_NUMBER 0 /* set to 1 to make of plot of particle number over time */
|
||
#define PARTICLE_NB_PLOT_FACTOR 0.5 /* expected final number of particles over initial number */
|
||
#define PRINT_LEFT 0 /* set to 1 to print certain parameters at the top left instead of right */
|
||
#define PLOT_SPEEDS 0 /* set to 1 to add a plot of obstacle speeds (e.g. for rockets) */
|
||
#define PLOT_TRAJECTORIES 0 /* set to 1 to add a plot of obstacle trajectories (e.g. for rockets) */
|
||
#define VMAX_PLOT_SPEEDS 0.25 /* vertical scale of plot of obstacle speeds */
|
||
|
||
#define EHRENFEST_COPY 0 /* set to 1 to add equal number of larger particles (for Ehrenfest model) */
|
||
|
||
#define LID_MASS 1000.0 /* mass of lid for BC_RECTANGLE_LID b.c. */
|
||
#define LID_WIDTH 0.1 /* width of lid for BC_RECTANGLE_LID b.c. */
|
||
#define WALL_MASS 2000.0 /* mass of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_FRICTION 0.0 /* friction on wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_WIDTH 0.1 /* width of wall for BC_RECTANGLE_WALL b.c. */
|
||
#define WALL_VMAX 100.0 /* max speed of wall */
|
||
#define WALL_TIME 0 /* time during which to keep wall */
|
||
|
||
#define NXMAZE 12 /* width of maze */
|
||
#define NYMAZE 12 /* height of maze */
|
||
#define MAZE_MAX_NGBH 4 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 4 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.5 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.01 /* width of maze walls */
|
||
|
||
#define FLOOR_FORCE 1 /* set to 1 to limit force on particle to FMAX */
|
||
#define FMAX 1.0e9 /* maximal force */
|
||
#define FLOOR_OMEGA 0 /* set to 1 to limit particle momentum to PMAX */
|
||
#define PMAX 1000.0 /* maximal force */
|
||
|
||
#define HASHX 60 /* size of hashgrid in x direction */
|
||
#define HASHY 30 /* size of hashgrid in y direction */
|
||
#define HASHMAX 100 /* maximal number of particles per hashgrid cell */
|
||
#define HASHGRID_PADDING 0.1 /* padding of hashgrid outside simulation window */
|
||
|
||
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 8.0 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
|
||
|
||
#define LIMIT_ENERGY 0 /* set to 1 to limit energy, when there is no thermostat */
|
||
|
||
```
|
||
|
||
### 1 November 23 - An asteroid impact on a partially flooded Mars - 2D representation ###
|
||
|
||
**Program:** `wave_sphere.c`
|
||
|
||
**Initial condition in function `animation()`:** `init_circular_wave_sphere(-0.66*PI, 0.35*PID, phi, psi, xy_in, wsphere);`
|
||
|
||
```
|
||
#define MOVIE 1 /* set to 1 to generate movie */
|
||
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
|
||
#define SAVE_MEMORY 1 /* set to 1 to save memory when writing tiff images */
|
||
#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
|
||
|
||
/* General geometrical parameters */
|
||
|
||
#define WINWIDTH 1920 /* window width */
|
||
#define WINHEIGHT 1150 /* window height */
|
||
#define NX 2048 /* number of grid points on x axis */
|
||
#define NY 1024 /* number of grid points on y axis */
|
||
|
||
#define DPOLE 20 /* safety distance to poles */
|
||
#define SMOOTHPOLE 0.1 /* smoothing coefficient at poles */
|
||
#define ZERO_MERIDIAN -75.0 /* choice of zero meridian (will be at left/right boundary of 2d plot) */
|
||
|
||
#define XMIN -2.0
|
||
#define XMAX 2.0 /* x interval */
|
||
#define YMIN -1.041666667
|
||
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
|
||
|
||
#define HIGHRES 0 /* set to 1 if resolution of grid is double that of displayed image */
|
||
|
||
#define JULIA_SCALE 0.6 /* scaling for Julia sets */
|
||
#define JULIA_ROT -20.0 /* rotation of Julia set, in degrees */
|
||
#define JULIA_RE 0.5
|
||
#define JULIA_IM 0.462 /* parameters for Julia sets */
|
||
|
||
/* Choice of the billiard table */
|
||
|
||
#define B_DOMAIN 86 /* choice of domain shape, see list in global_pdes.c */
|
||
|
||
#define CIRCLE_PATTERN 33 /* pattern of circles or polygons, see list in global_pdes.c */
|
||
|
||
#define COMPARISON 0 /* set to 1 to compare two different patterns */
|
||
#define B_DOMAIN_B 20 /* second domain shape, for comparisons */
|
||
#define CIRCLE_PATTERN_B 0 /* second pattern of circles or polygons */
|
||
|
||
#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
|
||
#define IOR 10 /* choice of index of refraction, see list in global_pdes.c */
|
||
#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
|
||
#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
|
||
|
||
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
|
||
#define NPOISSON 1000 /* number of points for Poisson C_RAND_POISSON arrangement */
|
||
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
|
||
|
||
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
|
||
#define MU 0.1 /* parameter controlling the dimensions of domain */
|
||
#define NPOLY 6 /* number of sides of polygon */
|
||
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
|
||
#define MDEPTH 7 /* depth of computation of Menger gasket */
|
||
#define MRATIO 3 /* ratio defining Menger gasket */
|
||
#define MANDELLEVEL 2000 /* iteration level for Mandelbrot set */
|
||
#define MANDELLIMIT 20.0 /* limit value for approximation of Mandelbrot set */
|
||
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
|
||
#define NGRIDX 30 /* number of grid point for grid of disks */
|
||
#define NGRIDY 18 /* number of grid point for grid of disks */
|
||
|
||
#define X_SHOOTER -0.2
|
||
#define Y_SHOOTER -0.6
|
||
#define X_TARGET 0.4
|
||
#define Y_TARGET 0.7 /* shooter and target positions in laser fight */
|
||
|
||
#define ISO_XSHIFT_LEFT -2.9
|
||
#define ISO_XSHIFT_RIGHT 1.4
|
||
#define ISO_YSHIFT_LEFT -0.15
|
||
#define ISO_YSHIFT_RIGHT -0.15
|
||
#define ISO_SCALE 0.5 /* coordinates for isospectral billiards */
|
||
|
||
|
||
/* You can add more billiard tables by adapting the functions */
|
||
/* xy_in_billiard and draw_billiard below */
|
||
|
||
/* Physical parameters of wave equation */
|
||
|
||
#define TWOSPEEDS 1 /* set to 1 to replace hardcore boundary by medium with different speed */
|
||
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
|
||
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
|
||
#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
|
||
|
||
#define OMEGA 0.001 /* frequency of periodic excitation */
|
||
#define AMPLITUDE 0.8 /* amplitude of periodic excitation */
|
||
#define ACHIRP 0.2 /* acceleration coefficient in chirp */
|
||
#define DAMPING 0.0 /* damping of periodic excitation */
|
||
#define COURANT 0.05 /* Courant number */
|
||
#define COURANTB 0.002 /* Courant number in medium B */
|
||
#define GAMMA 0.0 /* damping factor in wave equation */
|
||
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
|
||
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
|
||
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
|
||
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
|
||
#define KAPPA_SIDES 5.0e-4 /* "elasticity" term on absorbing boundary */
|
||
#define KAPPA_TOPBOT 0.0 /* "elasticity" term on absorbing boundary */
|
||
#define OSCIL_LEFT_YSHIFT 0.0 /* y-dependence of left oscillation (for non-horizontal waves) */
|
||
/* The Courant number is given by c*DT/DX, where DT is the time step and DX the lattice spacing */
|
||
/* The physical damping coefficient is given by GAMMA/(DT)^2 */
|
||
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
|
||
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
|
||
|
||
#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
|
||
#define OSCILLATING_SOURCE_PERIOD 30 /* period of oscillating source */
|
||
#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
|
||
|
||
#define ADD_WAVE_PACKET_SOURCES 0 /* set to 1 to add several sources emitting wave packets */
|
||
#define WAVE_PACKET_SOURCE_TYPE 1 /* type of wave packet sources */
|
||
#define N_WAVE_PACKETS 15 /* number of wave packets */
|
||
#define WAVE_PACKET_RADIUS 20 /* radius of wave packets */
|
||
|
||
/* Boundary conditions, see list in global_pdes.c */
|
||
|
||
#define B_COND 2
|
||
|
||
#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
|
||
|
||
/* Parameters for length and speed of simulation */
|
||
|
||
#define NSTEPS 2400 /* number of frames of movie */
|
||
#define NVID 4 /* number of iterations between images displayed on screen */
|
||
screen */
|
||
#define NSEG 1000 /* number of segments of boundary */
|
||
#define INITIAL_TIME 0 /* time after which to start saving frames */
|
||
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
|
||
#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
|
||
|
||
#define PAUSE 100 /* number of frames after which to pause */
|
||
#define PSLEEP 3 /* sleep time during pause */
|
||
#define SLEEP1 1 /* initial sleeping time */
|
||
#define SLEEP2 1 /* final sleeping time */
|
||
#define MID_FRAMES 100 /* number of still frames between parts of two-part movie */
|
||
#define END_FRAMES 500 /* number of still frames at end of movie */
|
||
#define FADE 1 /* set to 1 to fade at end of movie */
|
||
|
||
/* Parameters of initial condition */
|
||
|
||
#define INITIAL_AMP 0.5 /* amplitude of initial condition */
|
||
#define INITIAL_VARIANCE 0.001 /* variance of initial condition */
|
||
#define INITIAL_WAVELENGTH 0.05 /* wavelength of initial condition */
|
||
|
||
/* Plot type, see list in global_pdes.c */
|
||
|
||
#define ZPLOT 103 /* wave height */
|
||
#define CPLOT 103 /* color scheme */
|
||
|
||
#define ZPLOT_B 108
|
||
#define CPLOT_B 108 /* plot type for second movie */
|
||
|
||
#define CHANGE_LUMINOSITY 1 /* set to 1 to let luminosity depend on energy flux intensity */
|
||
#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
|
||
#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
|
||
#define SHADE_3D 0 /* set to 1 to change luminosity according to normal vector */
|
||
#define SHADE_2D 1 /* set to 1 to change luminosity according to normal vector to plane */
|
||
#define SHADE_WAVE 1 /* set to 1 to have luminosity depend on wave height */
|
||
#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
|
||
#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
|
||
#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
|
||
#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
|
||
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
|
||
#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
|
||
#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
|
||
#define SHADE_SCALE_2D 10.0 /* controls "depth" of 2D shading */
|
||
#define COS_LIGHT_MIN 0.0 /* controls angle-dependence of 2D shading */
|
||
#define COS_LIGHT_MAX 0.8 /* controls angle-dependence of 2D shading */
|
||
|
||
#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
|
||
#define PLOT_SCALE_LOG_ENERGY 0.5 /* vertical scaling in log energy plot */
|
||
|
||
/* 3D representation */
|
||
|
||
#define REPRESENTATION_3D 1 /* choice of 3D representation */
|
||
#define PLOT_2D 1 /* switch to 2D representation, equirectangular projection */
|
||
#define PHISHIFT 0.0 /* shift of phi in 2D plot (in degrees) */
|
||
#define FLOODING 1 /* set to 1 to draw waves above altitude (for Earth representations) */
|
||
|
||
#define REP_AXO_3D 0 /* linear projection (axonometry) */
|
||
#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
|
||
|
||
#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
|
||
#define ROTATE_ANGLE 360.0 /* total angle of rotation during simulation */
|
||
#define ROTATE_VIEW_WHILE_FADE 1 /* set to 1 to keep rotating viewpoint during fade */
|
||
|
||
#define VIEWPOINT_TRAJ 0 /* type of viewpoint trajectory */
|
||
#define MAX_LATITUDE 45.0 /* maximal latitude for viewpoint trajectory VP_ORBIT2 */
|
||
|
||
/* Color schemes */
|
||
|
||
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
|
||
#define COLOR_PALETTE_B 16 /* Color palette, see list in global_pdes.c */
|
||
|
||
#define BLACK 1 /* background */
|
||
#define COLOR_OUT_R 1.0 /* color outside domain */
|
||
#define COLOR_OUT_G 1.0
|
||
#define COLOR_OUT_B 1.0
|
||
|
||
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
|
||
|
||
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
|
||
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
|
||
#define VSCALE_AMPLITUDE 1.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
|
||
#define VSCALE_ENERGY 4.0 /* additional scaling factor for color scheme P_3D_ENERGY */
|
||
#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
|
||
#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
|
||
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
|
||
#define E_SCALE 150.0 /* scaling factor for energy representation */
|
||
#define LOG_SCALE 0.75 /* scaling factor for energy log representation */
|
||
#define LOG_SHIFT 0.5 /* shift of colors on log scale */
|
||
#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
|
||
#define LOG_MEAN_ENERGY_SHIFT 1.0 /* additional shift for log of mean energy */
|
||
#define FLUX_SCALE 1200.0 /* scaling factor for energy flux representation */
|
||
#define FLUX_CSCALE 2.0 /* scaling factor for color in energy flux representation */
|
||
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
|
||
|
||
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
|
||
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
|
||
#define LUMMEAN 0.5 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define LUMAMP 0.3 /* amplitude of luminosity variation for scheme C_LUM */
|
||
#define HUEMEAN 240.0 /* mean value of hue for color scheme C_HUE */
|
||
#define HUEAMP -200.0 /* amplitude of variation of hue for color scheme C_HUE */
|
||
|
||
#define NXMAZE 8 /* width of maze */
|
||
#define NYMAZE 32 /* height of maze */
|
||
#define MAZE_MAX_NGBH 5 /* max number of neighbours of maze cell */
|
||
#define RAND_SHIFT 5 /* seed of random number generator */
|
||
#define MAZE_XSHIFT 0.0 /* horizontal shift of maze */
|
||
#define MAZE_WIDTH 0.02 /* half width of maze walls */
|
||
|
||
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
|
||
#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
|
||
#define COLORBAR_RANGE_B 3.0 /* scale of color scheme bar for 2nd part */
|
||
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
|
||
#define CIRC_COLORBAR 0 /* set to 1 to draw circular color scheme */
|
||
#define CIRC_COLORBAR_B 0 /* set to 1 to draw circular color scheme */
|
||
|
||
#define DRAW_WAVE_PROFILE 0 /* set to 1 to draw a profile of the wave */
|
||
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
|
||
|
||
#define ADD_POTENTIAL 0 /* set to 1 to add potential to z coordinate */
|
||
#define POTENTIAL 10
|
||
#define POT_FACT 20.0
|
||
/* end of constants only used by sub_wave and sub_maze */
|
||
|
||
/* For debugging purposes only */
|
||
#define FLOOR 1 /* set to 1 to limit wave amplitude to VMAX */
|
||
#define VMAX 10.0 /* max value of wave amplitude */
|
||
|
||
/* Parameters controlling 3D projection */
|
||
|
||
double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_3D representation */
|
||
double v_3d[2] = {-0.75, -0.45};
|
||
double w_3d[2] = {0.0, 0.015};
|
||
double light[3] = {-0.816496581, 0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
|
||
double observer[3] = {-6.0, 3.0, 3.5}; /* location of observer for REP_PROJ_3D representation */
|
||
int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
|
||
|
||
#define ADD_DEM 1 /* add DEM (digital elevation model) */
|
||
#define ADD_NEGATIVE_DEM 0 /* add DEM with bathymetric data */
|
||
#define RSCALE_DEM 0.15 /* scaling factor of radial component for DEM */
|
||
#define SMOOTH_DEM 1 /* set to 1 to smoothen DEM (to make altitude less constant) */
|
||
#define DEM_SMOOTH_STEPS 5 /* number of smoothening steps */
|
||
#define DEM_SMOOTH_HEIGHT 0.5 /* relative height below which to smoothen */
|
||
#define DEM_MAXHEIGHT 28000.0 /* max height of DEM (estimated from Everest/Olympus Mons) */
|
||
#define MARS_SEALEVEL 2100.0 /* sea level for flooded planet Mars */
|
||
|
||
#define RSCALE 0.01 /* scaling factor of radial component */
|
||
#define RMAX 2.0 /* max value of radial component */
|
||
#define Z_SCALING_FACTOR 0.85 /* overall scaling factor of z axis for REP_PROJ_3D representation */
|
||
#define XY_SCALING_FACTOR 2.0 /* overall scaling factor for on-screen (x,y) coordinates after projection */
|
||
#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
|
||
#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
|
||
#define YSHIFT_3D 0.0 /* overall y shift for REP_PROJ_3D representation */
|
||
#define COS_VISIBLE -0.75 /* limit on cosine of normal to shown facets */
|
||
|
||
```
|
||
|
||
|