Go to the documentation of this file. 32 #define LARGE_DISTANCE 100000 33 #define MIN_BLOB_SIZE 10 34 #define MAX_ASPECT_RATIO 2.5 45 #define same_point(p1,p2) \ 46 ((abs (p1.x - p2.x) < chop_same_distance) && \ 47 (abs (p1.y - p2.y) < chop_same_distance)) 56 #define dist_square(p1,p2) \ 57 ((p2.x - p1.x) * (p2.x - p1.x) + \ 58 (p2.y - p1.y) * (p2.y - p1.y)) 67 #define closest(test_p,p1,p2) \ 70 ((dist_square (test_p->pos, p1->pos) < \ 71 dist_square (test_p->pos, p2->pos)) ? \ 83 #define edgept_dist(p1,p2) \ 84 (dist_square ((p1)->pos, (p2)->pos)) 93 #define is_exterior_point(edge,point) \ 94 (same_point (edge->prev->pos, point->pos) || \ 95 same_point (edge->next->pos, point->pos) || \ 96 (angle_change (edge->prev, edge, edge->next) - \ 97 angle_change (edge->prev, edge, point) > 20)) 105 #define is_equal(p1,p2) \ 106 (((p1).x == (p2).x) && ((p1).y == (p2).y)) 116 #define is_on_line(p,p0,p1) \ 117 (within_range ((p).x, (p0).x, (p1).x) && \ 118 within_range ((p).y, (p0).y, (p1).y)) 127 #define within_range(x,x0,x1) \ 128 (((x0 <= x) && (x <= x1)) || ((x1 <= x) && (x <= x0)))