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Main changes: lennardjones, wave_billiard, rde
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Nils Berglund
GitHub
130
wave_3d.c
130
wave_3d.c
@@ -44,7 +44,7 @@
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#include <time.h>
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#define MOVIE 0 /* set to 1 to generate movie */
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#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
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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 when writing tiff images */
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#define NO_EXTRA_BUFFER_SWAP 1 /* some OS require one less buffer swap when recording images */
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@@ -52,8 +52,12 @@
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#define WINWIDTH 1920 /* window width */
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#define WINHEIGHT 1150 /* window height */
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#define NX 1920 /* number of grid points on x axis */
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#define NY 1150 /* number of grid points on y axis */
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// #define NX 1920 /* number of grid points on x axis */
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// #define NY 1150 /* number of grid points on y axis */
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#define NX 2880 /* number of grid points on x axis */
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#define NY 1725 /* number of grid points on y axis */
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// #define NX 2400 /* number of grid points on x axis */
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// #define NY 1400 /* number of grid points on y axis */
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#define XMIN -2.0
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#define XMAX 2.0 /* x interval */
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@@ -66,7 +70,7 @@
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/* Choice of the billiard table */
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#define B_DOMAIN 97 /* choice of domain shape, see list in global_pdes.c */
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#define B_DOMAIN 192 /* choice of domain shape, see list in global_pdes.c */
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#define CIRCLE_PATTERN 2 /* pattern of circles or polygons, see list in global_pdes.c */
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@@ -76,7 +80,7 @@
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#define IMAGE_FILE 5 /* for option D_IMAGE */
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#define VARIABLE_IOR 0 /* set to 1 for a variable index of refraction */
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#define IOR 181 /* choice of index of refraction, see list in global_pdes.c */
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#define IOR 182 /* choice of index of refraction, see list in global_pdes.c */
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#define IOR_TOTAL_TURNS 1.0 /* total angle of rotation for IOR_PERIODIC_WELLS_ROTATING */
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#define MANDEL_IOR_SCALE -0.05 /* parameter controlling dependence of IoR on Mandelbrot escape speed */
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@@ -86,11 +90,11 @@
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#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
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#define PDISC_CONNECT_FACTOR 1.5 /* controls which discs are connected for D_CIRCLE_LATTICE_POISSON domain */
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#define LAMBDA 0.6 /* parameter controlling the dimensions of domain */
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#define MU 0.11 /* parameter controlling the dimensions of domain */
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#define LAMBDA 2.3 /* parameter controlling the dimensions of domain */
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#define MU 1.15 /* parameter controlling the dimensions of domain */
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#define MU_B 1.0 /* parameter controlling the dimensions of domain */
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#define NPOLY 6 /* 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 NPOLY 3 /* number of sides of polygon */
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#define APOLY -1.0 /* angle by which to turn polygon, in units of Pi/2 */
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#define MDEPTH 6 /* 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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@@ -98,8 +102,8 @@
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#define FOCI 1 /* set to 1 to draw focal points of ellipse */
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#define NGRIDX 12 /* number of grid point for grid of disks */
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#define NGRIDY 8 /* number of grid point for grid of disks */
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#define WALL_WIDTH 0.022 /* width of wall separating lenses */
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#define WALL_WIDTH_B 0.01 /* width of wall separating lenses */
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#define WALL_WIDTH 0.1 /* width of wall separating lenses */
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#define WALL_WIDTH_B 0.05 /* width of wall separating lenses */
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#define WALL_WIDTH_RND 0.0 /* proportion of width of width for random arrangements */
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#define RADIUS_FACTOR 0.3 /* controls inner radius for C_RING arrangements */
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#define WALL_WIDTH_ASYM 0.75 /* asymmetry of wall width (D_CIRCLE_LATTICE_NONISO) */
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@@ -123,19 +127,20 @@
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/* Physical parameters of wave equation */
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#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
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#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
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#define OSCILLATE_LEFT 1 /* set to 1 to add oscilating boundary condition on the left */
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#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
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#define OSCILLATION_SCHEDULE 3 /* oscillation schedule, see list in global_pdes.c */
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#define OSCIL_YMAX 0.35 /* defines oscillation range */
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#define OSCILLATION_SCHEDULE 42 /* oscillation schedule, see list in global_pdes.c */
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#define OSCIL_YMAX 0.1 /* defines oscilling beam range */
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#define OSCIL_YMID -0.75 /* defines oscilling beam midpoint */
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#define INITIAL_SHIFT 20.0 /* time shift of initial wave packet (in oscillation periods) */
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#define WAVE_PACKET_SHIFT 200.0 /* time shift between wave packets (in oscillation periods) */
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#define OMEGA 0.025 /* frequency of periodic excitation */
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#define AMPLITUDE 0.5 /* amplitude of periodic excitation */
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#define OMEGA 0.02 /* frequency of periodic excitation */
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#define AMPLITUDE 1.0 /* amplitude of periodic excitation */
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#define ACHIRP 0.2 /* acceleration coefficient in chirp */
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#define DAMPING 0.0 /* damping of periodic excitation */
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#define COURANT 0.1 /* Courant number */
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#define COURANTB 0.08 /* Courant number in medium B */
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#define COURANT 0.15 /* Courant number in medium B */
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#define COURANTB 0.1 /* Courant number */
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#define GAMMA 0.0 /* damping factor in wave equation */
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#define GAMMAB 1.0e-6 /* damping factor in wave equation */
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#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
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@@ -149,7 +154,7 @@
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/* Increasing COURANT speeds up the simulation, but decreases accuracy */
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/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
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#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
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#define ADD_OSCILLATING_SOURCE 0 /* set to 1 to add an oscillating wave source */
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#define OSCILLATING_SOURCE_PERIOD 18 /* period of oscillating source */
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#define ALTERNATE_OSCILLATING_SOURCE 1 /* set to 1 to alternate sign of oscillating source */
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#define MAX_PULSING_TIME 1500 /* max time for adding pulses */
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@@ -161,16 +166,16 @@
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/* Boundary conditions, see list in global_pdes.c */
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#define B_COND 1
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#define B_COND 2
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#define PRECOMPUTE_BC 0 /* set to 1 to compute neighbours for Laplacian in advance */
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/* Parameters for length and speed of simulation */
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#define NSTEPS 2800 /* number of frames of movie */
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#define NVID 3 /* number of iterations between images displayed on screen */
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#define NSEG 1000 /* number of segments of boundary */
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#define INITIAL_TIME 0 /* time after which to start saving frames */
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#define NSTEPS 2000 /* number of frames of movie */
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#define NVID 10 /* number of iterations between images displayed on screen */
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#define NSEG 200 /* number of segments of boundary */
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#define INITIAL_TIME 100 /* time after which to start saving frames */
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#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
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#define PRINT_SPEED 0 /* set to 1 to print speed of moving source */
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@@ -201,12 +206,12 @@
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#define FLUX_WINDOW 30 /* size of averaging window of flux intensity */
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#define AMPLITUDE_HIGH_RES 1 /* set to 1 to increase resolution of plot */
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#define SHADE_3D 1 /* set to 1 to change luminosity according to normal vector */
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#define NON_DIRICHLET_BC 1 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
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#define NON_DIRICHLET_BC 0 /* set to 1 to draw only facets in domain, if field is not zero on boundary */
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#define FLOOR_ZCOORD 1 /* set to 1 to draw only facets with z not too negative */
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#define DRAW_BILLIARD 0 /* set to 1 to draw boundary */
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#define DRAW_BILLIARD_FRONT 0 /* set to 1 to draw front of boundary after drawing wave */
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#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw construction lines of certain domains */
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#define FADE_IN_OBSTACLE 1 /* set to 1 to fade color inside obstacles */
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#define FADE_IN_OBSTACLE 0 /* set to 1 to fade color inside obstacles */
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#define DRAW_OUTSIDE_GRAY 0 /* experimental, draw outside of billiard in gray */
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#define PLOT_SCALE_ENERGY 0.4 /* vertical scaling in energy plot */
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@@ -219,28 +224,28 @@
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#define REP_AXO_3D 0 /* linear projection (axonometry) */
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#define REP_PROJ_3D 1 /* projection on plane orthogonal to observer line of sight */
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#define ROTATE_VIEW 1 /* set to 1 to rotate position of observer */
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#define ROTATE_VIEW 0 /* set to 1 to rotate position of observer */
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#define ROTATE_ANGLE 360.0 /* total angle of rotation during simulation */
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/* Color schemes */
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#define COLOR_PALETTE 10 /* Color palette, see list in global_pdes.c */
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#define COLOR_PALETTE_B 17 /* Color palette, see list in global_pdes.c */
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#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
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#define COLOR_PALETTE_B 13 /* Color palette, see list in global_pdes.c */
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#define BLACK 1 /* background */
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#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.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 0.75 /* sensitivity of color on wave amplitude */
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#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
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#define COLOR_RANGE 1.0 /* max range of color (default: 1.0) */
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#define VSCALE_AMPLITUDE 0.5 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
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#define VSCALE_AMPLITUDE 1.0 /* additional scaling factor for color scheme P_3D_AMPLITUDE */
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#define VSHIFT_AMPLITUDE 0.0 /* additional shift for wave amplitude */
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#define VSCALE_ENERGY 1.0 /* additional scaling factor for color scheme P_3D_ENERGY */
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#define VSCALE_ENERGY 2.5 /* additional scaling factor for color scheme P_3D_ENERGY */
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#define PHASE_FACTOR 20.0 /* factor in computation of phase in color scheme P_3D_PHASE */
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#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
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#define PHASE_SHIFT 0.0 /* shift of phase in color scheme P_3D_PHASE */
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#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
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#define E_SCALE 30.0 /* scaling factor for energy representation */
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#define E_SCALE 100.0 /* scaling factor for energy representation */
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#define LOG_SCALE 1.5 /* scaling factor for energy log representation */
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#define LOG_SHIFT 0.25 /* shift of colors on log scale */
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#define LOG_ENERGY_FLOOR -10.0 /* floor value for log of (total) energy */
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@@ -272,8 +277,8 @@
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#define MAZE_WIDTH 0.02 /* half width of maze walls */
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#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
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#define COLORBAR_RANGE 2.5 /* scale of color scheme bar */
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#define COLORBAR_RANGE_B 1.0 /* scale of color scheme bar for 2nd part */
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#define COLORBAR_RANGE 3.0 /* scale of color scheme bar */
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#define COLORBAR_RANGE_B 1.5 /* scale of color scheme bar for 2nd part */
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#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
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#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
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@@ -310,15 +315,16 @@ double u_3d[2] = {0.75, -0.45}; /* projections of basis vectors for REP_AXO_
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double v_3d[2] = {-0.75, -0.45};
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double w_3d[2] = {0.0, 0.015};
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double light[3] = {0.816496581, -0.40824829, 0.40824829}; /* vector of "light" direction for P_3D_ANGLE color scheme */
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double observer[3] = {-8.0, -6.0, 6.0}; /* location of observer for REP_PROJ_3D representation */
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double observer[3] = {8.0, 6.0, 6.0}; /* location of observer for REP_PROJ_3D representation */
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int reset_view = 0; /* switch to reset 3D view parameters (for option ROTATE_VIEW) */
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#define Z_SCALING_FACTOR 0.05 /* overall scaling factor of z axis for REP_PROJ_3D representation */
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#define XY_SCALING_FACTOR 1.8 /* overall scaling factor for on-screen (x,y) coordinates after projection */
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#define Z_SCALING_FACTOR 0.1 /* overall scaling factor of z axis for REP_PROJ_3D representation */
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#define XY_SCALING_FACTOR 2.3 /* overall scaling factor for on-screen (x,y) coordinates after projection */
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#define ZMAX_FACTOR 1.0 /* max value of z coordinate for REP_PROJ_3D representation */
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#define XSHIFT_3D -0.1 /* overall x shift for REP_PROJ_3D representation */
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#define YSHIFT_3D 0.2 /* overall y shift for REP_PROJ_3D representation */
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#define XSHIFT_3D 0.0 /* overall x shift for REP_PROJ_3D representation */
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#define YSHIFT_3D -0.25 /* overall y shift for REP_PROJ_3D representation */
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#define BEAM_BC ((OSCILLATION_SCHEDULE == OSC_BEAM_SINE)||(OSCILLATION_SCHEDULE == OSC_BEAM_SINE_DECREASING)||(OSCILLATION_SCHEDULE == OSC_BEAM_SINE_TWOPERIODS)||(OSCILLATION_SCHEDULE == OSC_BEAM_SINE_CHIRP))
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#include "global_pdes.c" /* constants and global variables */
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#include "global_3d.c" /* constants and global variables */
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@@ -340,10 +346,34 @@ void evolve_wave_half_new(double phi_in[NX*NY], double psi_in[NX*NY], double phi
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/* phi is value of field at time t, psi at time t-1 */
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/* this version of the function has been rewritten in order to minimize the number of if-branches */
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{
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int i, j, iplus, iminus, jplus, jminus;
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int i, j, iplus, iminus, jplus, jminus, ij[2];
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double x, y, c, cc, gamma, tb_shift;
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static long time = 0;
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double *delta;
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static short int first = 1, left_bc[NY];
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static int bc_jmin, bc_jmax;
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if (first)
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{
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if ((OSCILLATE_LEFT)&&(BEAM_BC))
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{
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xy_to_ij(0.0, OSCIL_YMID + OSCIL_YMAX, ij);
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bc_jmax = ij[1];
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xy_to_ij(0.0, OSCIL_YMID - OSCIL_YMAX, ij);
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bc_jmin = ij[1];
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}
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else
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{
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bc_jmin = 0;
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bc_jmax = NY-1;
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}
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for (j=0; j<NY-1; j++)
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{
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if ((OSCILLATE_LEFT)&&(j > bc_jmin)&&(j < bc_jmax)) left_bc[j] = 1;
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else left_bc[j] = 0;
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}
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first = 0;
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}
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delta = (double *)malloc(NX*NY*sizeof(double));
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@@ -370,13 +400,15 @@ void evolve_wave_half_new(double phi_in[NX*NY], double psi_in[NX*NY], double phi
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/* left boundary */
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// if (OSCILLATE_LEFT) for (j=1; j<NY-1; j++) phi_out[j] = AMPLITUDE*cos((double)time*OMEGA);
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if (OSCILLATE_LEFT)
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{
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for (j=1; j<NY-1; j++) phi_out[j] = oscillating_bc(time, j);
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printf("Boundary condition %.3lg\n", oscillating_bc(time, 0));
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}
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else for (j=1; j<NY-1; j++){
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if ((TWOSPEEDS)||(xy_in[j] != 0)){
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// if (OSCILLATE_LEFT)
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// {
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// for (j=1; j<NY-1; j++) phi_out[j] = oscillating_bc(time, j);
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// printf("Boundary condition %.3lg\n", oscillating_bc(time, 0));
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// }
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// else
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for (j=1; j<NY-1; j++){
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if (left_bc[j]) phi_out[j] = oscillating_bc(time, j);
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else if ((TWOSPEEDS)||(xy_in[j] != 0)){
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x = phi_in[j];
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y = psi_in[j];
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