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global_particles.c

@@ -0,0 +1,33 @@
+double circlex[NMAXCIRCLES], circley[NMAXCIRCLES], circlerad[NMAXCIRCLES];      /* position and radius of circular scatters */
+short int circleactive[NMAXCIRCLES];                                      /* tells which circular scatters are active */
+int ncircles = NMAXCIRCLES;            /* actual number of circles, can be decreased e.g. for random patterns */
+
+
+/* some basic math */
+
+#define PI 	3.141592654
+#define DPI 	6.283185307
+#define PID 	1.570796327
+
+/* Choice of the billiard table */
+
+#define D_RECTANGLE 0   /* rectangular domain */
+#define D_ELLIPSE 1     /* elliptical domain */
+#define D_STADIUM 2     /* stadium-shaped domain */
+#define D_SINAI 3       /* Sinai billiard */
+#define D_DIAMOND 4     /* diamond-shaped billiard */
+#define D_TRIANGLE 5    /* triangular billiard */
+#define D_ANNULUS 7     /* annulus */
+#define D_POLYGON 8     /* polygon */
+#define D_REULEAUX 9    /* Reuleaux and star shapes */
+#define D_FLOWER 10     /* Bunimovich flower */
+#define D_ALT_REU 11    /* alternating between star and Reuleaux */
+#define D_ANGLE 12      /* angular sector */
+#define D_LSHAPE 13     /* L-shaped billiard for conical singularity */
+#define D_GENUSN 14     /* polygon with identifies opposite sides */
+
+#define D_CIRCLES 20     /* several circles */
+
+#define C_FOUR_CIRCLES 0  /* four circles almost touching each other */
+#define C_SQUARE 1        /* square grid of circles */
+#define C_HEX 2           /* hexagonal/triangular grid of circles */