daviddoji/YouTube-simulations
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This commit is contained in:
Nils Berglund
2022-08-20 16:02:07 +02:00
committed by GitHub
parent 731bbc63ea
commit 7cc2823d85
25 changed files with 3009 additions and 674 deletions
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48
particle_billiard.c
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@@ -33,19 +33,28 @@
#define MOVIE 0 /* set to 1 to generate movie */
#define WINWIDTH 720 /* window width */
#define WINWIDTH 1280 /* window width */
#define WINHEIGHT 720 /* window height */
#define XMIN -1.125
#define XMAX 1.125 /* x interval */
#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 WINWIDTH 1920 /* window width */
// #define WINHEIGHT 1000 /* window height */
//
// #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 SCALING_FACTOR 1.0 /* scaling factor of drawing, needed for flower billiards, otherwise set to 1.0 */
/* Choice of the billiard table, see global_particles.c */
#define B_DOMAIN 30 /* choice of domain shape */
#define B_DOMAIN 16 /* choice of domain shape */
#define CIRCLE_PATTERN 1 /* pattern of circles */
#define POLYLINE_PATTERN 8 /* pattern of polyline */
@@ -54,6 +63,8 @@
#define NMAXCIRCLES 100000 /* total number of circles (must be at least NCX*NCY for square grid) */
#define NMAXPOLY 100000 /* total number of sides of polygonal line */
// #define NCX 10 /* number of circles in x direction */
// #define NCY 10 /* number of circles in y direction */
#define NCX 30 /* number of circles in x direction */
#define NCY 20 /* number of circles in y direction */
#define NPOISSON 500 /* number of points for Poisson C_RAND_POISSON arrangement */
@@ -61,10 +72,12 @@
#define SDEPTH 1 /* Sierpinski gastket depth */
#define LAMBDA 1.5 /* parameter controlling shape of domain */
#define MU 0.01 /* second parameter controlling shape of billiard */
#define MU 0.5 /* second parameter controlling shape of billiard */
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
#define NPOLY 6 /* number of sides of polygon */
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
#define PENROSE_RATIO 2.5 /* parameter controlling the shape of small ellipses in Penrose room */
#define DRAW_BILLIARD 1 /* set to 1 to draw billiard */
#define DRAW_CONSTRUCTION_LINES 0 /* set to 1 to draw additional construction lines for billiard */
#define PERIODIC_BC 0 /* set to 1 to enforce periodic boundary conditions when drawing particles */
@@ -74,21 +87,23 @@
/* Simulation parameters */
#define NPART 5000 /* number of particles */
#define NPART 16 /* number of particles */
// #define NPART 2000 /* number of particles */
#define NPARTMAX 100000 /* maximal number of particles after resampling */
#define LMAX 0.01 /* minimal segment length triggering resampling */
#define DMIN 0.02 /* minimal distance to boundary for triggering resampling */
#define CYCLE 1 /* set to 1 for closed curve (start in all directions) */
#define SHOWTRAILS 0 /* set to 1 to keep trails of the particles */
#define SHOWZOOM 1 /* set to 1 to show zoom on specific area */
#define PRINT_PARTICLE_NUMBER 1 /* set to 1 to print number of particles */
#define SHOWTRAILS 1 /* set to 1 to keep trails of the particles */
#define SHOWZOOM 0 /* set to 1 to show zoom on specific area */
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print number of particles */
#define PRINT_COLLISION_NUMBER 0 /* set to 1 to print number of collisions */
#define TEST_ACTIVE 1 /* set to 1 to test whether particle is in billiard */
#define NSTEPS 1000 /* number of frames of movie */
#define TIME 2500 /* time between movie frames, for fluidity of real-time simulation */
#define NSTEPS 5250 /* number of frames of movie */
#define TIME 750 /* time between movie frames, for fluidity of real-time simulation */
#define DPHI 0.00001 /* integration step */
#define NVID 100 /* number of iterations between images displayed on screen */
#define NVID 25 /* number of iterations between images displayed on screen */
// #define NVID 100 /* number of iterations between images displayed on screen */
#define END_FRAMES 25 /* number of still frames at the end of the movie */
/* Decreasing TIME accelerates the animation and the movie */
@@ -99,14 +114,15 @@
/* Colors and other graphical parameters */
#define COLOR_PALETTE 17 /* Color palette, see list in global_pdes.c */
#define COLOR_PALETTE 14 /* Color palette, see list in global_pdes.c */
#define NCOLORS 64 /* number of colors */
#define NCOLORS 16 /* number of colors */
#define COLORSHIFT 0 /* hue of initial color */
#define RAINBOW_COLOR 1 /* set to 1 to use different colors for all particles */
#define RAINBOW_COLOR 0 /* set to 1 to use different colors for all particles */
#define FLOWER_COLOR 0 /* set to 1 to adapt initial colors to flower billiard (tracks vs core) */
#define NSEG 100 /* number of segments of boundary */
#define LENGTH 0.03 /* length of velocity vectors */
#define LENGTH 0.005 /* length of velocity vectors */
// #define LENGTH 0.03 /* length of velocity vectors */
#define BILLIARD_WIDTH 2 /* width of billiard */
#define PARTICLE_WIDTH 3 /* width of particles */
#define FRONT_WIDTH 3 /* width of wave front */