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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37
drop_billiard.c
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@@ -42,7 +42,7 @@
/* Choice of the billiard table, see global_particles.c */
#define B_DOMAIN 15 /* choice of domain shape */
#define B_DOMAIN 1 /* choice of domain shape */
#define CIRCLE_PATTERN 0 /* pattern of circles */
#define POLYLINE_PATTERN 1 /* pattern of polyline */
@@ -59,7 +59,7 @@
#define NGOLDENSPIRAL 2000 /* max number of points for C_GOLDEN_SPIRAL arrandement */
#define SDEPTH 1 /* Sierpinski gastket depth */
#define LAMBDA 0.3 /* parameter controlling the dimensions of domain */
#define LAMBDA 1.5 /* parameter controlling the dimensions of domain */
// #define LAMBDA 1.124950941 /* sin(36°)/sin(31.5°) for 5-star shape with 45° angles */
// #define LAMBDA 1.445124904 /* sin(36°)/sin(24°) for 5-star shape with 60° angles */
// #define LAMBDA 3.75738973 /* sin(36°)/sin(9°) for 5-star shape with 90° angles */
@@ -72,13 +72,14 @@
#define DRAW_BILLIARD 1 /* set to 1 to draw billiard */
#define DRAW_CONSTRUCTION_LINES 1 /* 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 */
#define PENROSE_RATIO 2.5 /* parameter controlling the shape of small ellipses in Penrose room */
#define RESAMPLE 0 /* set to 1 if particles should be added when dispersion too large */
#define RESAMPLE 1 /* set to 1 if particles should be added when dispersion too large */
#define NPART 20000 /* number of particles */
#define NPARTMAX 100000 /* maximal number of particles after resampling */
#define NSTEPS 5000 /* number of frames of movie */
#define NSTEPS 5250 /* number of frames of movie */
#define TIME 150 /* time between movie frames, for fluidity of real-time simulation */
#define DPHI 0.0001 /* integration step */
#define NVID 75 /* number of iterations between images displayed on screen */
@@ -90,25 +91,25 @@
/* simulation parameters */
#define LMAX 0.01 /* minimal segment length triggering resampling */
#define LPERIODIC 0.1 /* lines longer than this are not drawn (useful for Sinai billiard) */
#define LCUT 10000.0 /* controls the max size of segments not considered as being cut */
#define DMIN 0.02 /* minimal distance to boundary for triggering resampling */
#define LMAX 0.1 /* minimal segment length triggering resampling */
#define LPERIODIC 0.5 /* lines longer than this are not drawn (useful for Sinai billiard) */
#define LCUT 10000000.0 /* controls the max size of segments not considered as being cut */
#define DMIN 0.1 /* minimal distance to boundary for triggering resampling */
#define CYCLE 0 /* set to 1 for closed curve (start in all directions) */
#define ORDER_COLORS 1 /* set to 1 if colors should be drawn in order */
#define ORDER_COLORS 0 /* set to 1 if colors should be drawn in order */
/* color and other graphical parameters */
#define COLOR_PALETTE 1 /* Color palette, see list in global_pdes.c */
#define COLOR_PALETTE 14 /* Color palette, see list in global_pdes.c */
#define NCOLORS 14 /* number of colors */
#define NCOLORS 16 /* number of colors */
#define COLORSHIFT 3 /* hue of initial color */
#define RAINBOW_COLOR 0 /* set to 1 to use different colors for all particles */
#define NSEG 100 /* number of segments of boundary */
#define BILLIARD_WIDTH 4 /* width of billiard */
#define FRONT_WIDTH 4 /* width of wave front */
#define BLACK 0 /* set to 1 for black background */
#define BLACK 1 /* set to 1 for black background */
#define COLOR_OUTSIDE 0 /* set to 1 for colored outside */
#define OUTER_COLOR 300.0 /* color outside billiard */
#define PAINT_INT 0 /* set to 1 to paint interior in other color (for polygon) */
@@ -119,7 +120,7 @@
#define PSLEEP 1 /* sleep time during pause */
#define SLEEP1 1 /* initial sleeping time */
#define SLEEP2 100 /* final sleeping time */
#define END_FRAMES 0 /* number of frames at end of movie */
#define END_FRAMES 25 /* number of frames at end of movie */
#define PI 3.141592654
#define DPI 6.283185307
@@ -469,11 +470,11 @@ void animation()
for (i=0; i<NPARTMAX; i++)
configs[i] = (double *)malloc(8*sizeof(double));
// init_drop_config(0.1, 0.1, 0.0, DPI, configs);
init_partial_drop_config(0, NPART/4, LAMBDA, 0.0, 0.0, DPI, configs);
init_partial_drop_config(NPART/4, NPART/2, -LAMBDA, 0.0, 0.0, DPI, configs);
init_partial_drop_config(NPART/2, 3*NPART/4, 0.0, LAMBDA, 0.0, DPI, configs);
init_partial_drop_config(3*NPART/4, NPART, 0.0, -LAMBDA, 0.0, DPI, configs);
init_drop_config(0.0, 0.0, 0.0, DPI, configs);
// init_partial_drop_config(0, NPART/4, LAMBDA, 0.0, 0.0, DPI, configs);
// init_partial_drop_config(NPART/4, NPART/2, -LAMBDA, 0.0, 0.0, DPI, configs);
// init_partial_drop_config(NPART/2, 3*NPART/4, 0.0, LAMBDA, 0.0, DPI, configs);
// init_partial_drop_config(3*NPART/4, NPART, 0.0, -LAMBDA, 0.0, DPI, configs);
// init_drop_config(-1.0 + 0.3*sqrt(2.0), -1.0 + 0.5*sqrt(2.0), 0.0, DPI, configs);
// init_drop_config(-0.5, -0.5, 0.0, DPI, configs);
// init_boundary_config(1.5, 1.5, 0.0, PI, configs);