24 const FX_FLOAT intersection_epsilon = 1.0e-30f;
25 AGG_INLINE FX_FLOAT calc_point_location(FX_FLOAT x1, FX_FLOAT y1,  in calc_point_location()
26                                         FX_FLOAT x2, FX_FLOAT y2,  in calc_point_location()
27                                         FX_FLOAT x,  FX_FLOAT y)  in calc_point_location()
31 AGG_INLINE FX_FLOAT calc_distance(FX_FLOAT x1, FX_FLOAT y1, FX_FLOAT x2, FX_FLOAT y2)  in calc_distance()
33     FX_FLOAT dx = x2 - x1;  in calc_distance()
34     FX_FLOAT dy = y2 - y1;  in calc_distance()
37 AGG_INLINE FX_FLOAT calc_line_point_distance(FX_FLOAT x1, FX_FLOAT y1,  in calc_line_point_distance()
38         FX_FLOAT x2, FX_FLOAT y2,  in calc_line_point_distance()
39         FX_FLOAT x,  FX_FLOAT y)  in calc_line_point_distance()
41     FX_FLOAT dx = x2 - x1;  in calc_line_point_distance()
42     FX_FLOAT dy = y2 - y1;  in calc_line_point_distance()
43     FX_FLOAT d = FXSYS_sqrt2(dx, dy);  in calc_line_point_distance()
49 AGG_INLINE bool calc_intersection(FX_FLOAT ax, FX_FLOAT ay, FX_FLOAT bx, FX_FLOAT by,  in calc_intersection()
50                                   FX_FLOAT cx, FX_FLOAT cy, FX_FLOAT dx, FX_FLOAT dy,  in calc_intersection()
51                                   FX_FLOAT* x, FX_FLOAT* y)  in calc_intersection()
53     FX_FLOAT num = FXSYS_Mul(ay - cy, dx - cx) - FXSYS_Mul(ax - cx, dy - cy);  in calc_intersection()
54     FX_FLOAT den = FXSYS_Mul(bx - ax, dy - cy) - FXSYS_Mul(by - ay, dx - cx);  in calc_intersection()