diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_geom.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_geom.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c index 2aec707b4ea..c2e765388c8 100644 --- a/source/blender/blenlib/intern/math_geom.c +++ b/source/blender/blenlib/intern/math_geom.c @@ -336,20 +336,19 @@ static short IsectLLPt2Df(float x0,float y0,float x1,float y1, return 1; } // end Intersect_Lines -#define SIDE_OF_LINE(pa,pb,pp) ((pa[0]-pp[0])*(pb[1]-pp[1]))-((pb[0]-pp[0])*(pa[1]-pp[1])) /* point in tri */ -// XXX was called IsectPT2Df + int isect_point_tri_v2(float pt[2], float v1[2], float v2[2], float v3[2]) { - if (SIDE_OF_LINE(v1,v2,pt)>=0.0) { - if (SIDE_OF_LINE(v2,v3,pt)>=0.0) { - if (SIDE_OF_LINE(v3,v1,pt)>=0.0) { + if (line_point_side_v2(v1,v2,pt)>=0.0) { + if (line_point_side_v2(v2,v3,pt)>=0.0) { + if (line_point_side_v2(v3,v1,pt)>=0.0) { return 1; } } } else { - if (! (SIDE_OF_LINE(v2,v3,pt)>=0.0)) { - if (! (SIDE_OF_LINE(v3,v1,pt)>=0.0)) { + if (! (line_point_side_v2(v2,v3,pt)>=0.0)) { + if (! (line_point_side_v2(v3,v1,pt)>=0.0)) { return -1; } } @@ -360,18 +359,18 @@ int isect_point_tri_v2(float pt[2], float v1[2], float v2[2], float v3[2]) /* point in quad - only convex quads */ int isect_point_quad_v2(float pt[2], float v1[2], float v2[2], float v3[2], float v4[2]) { - if (SIDE_OF_LINE(v1,v2,pt)>=0.0) { - if (SIDE_OF_LINE(v2,v3,pt)>=0.0) { - if (SIDE_OF_LINE(v3,v4,pt)>=0.0) { - if (SIDE_OF_LINE(v4,v1,pt)>=0.0) { + if (line_point_side_v2(v1,v2,pt)>=0.0) { + if (line_point_side_v2(v2,v3,pt)>=0.0) { + if (line_point_side_v2(v3,v4,pt)>=0.0) { + if (line_point_side_v2(v4,v1,pt)>=0.0) { return 1; } } } } else { - if (! (SIDE_OF_LINE(v2,v3,pt)>=0.0)) { - if (! (SIDE_OF_LINE(v3,v4,pt)>=0.0)) { - if (! (SIDE_OF_LINE(v4,v1,pt)>=0.0)) { + if (! (line_point_side_v2(v2,v3,pt)>=0.0)) { + if (! (line_point_side_v2(v3,v4,pt)>=0.0)) { + if (! (line_point_side_v2(v4,v1,pt)>=0.0)) { return -1; } } |