diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2013-12-26 13:05:03 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2013-12-26 13:07:44 +0400 |
| commit | bc1eb0bf0a0c5a6ebf3ff19dae0bfe6a65529b8e (patch) | |
| tree | fc6b62276f968930cf12acf90abf8a11c92725ae /source/blender/blenlib | |
| parent | 03fed41e59cc9247f7db6af33b2e76b6b05340f7 (diff) | |
Simplify isect_point_poly_v2 functions using angle_signed_v2v2
Diffstat (limited to 'source/blender/blenlib')
| -rw-r--r-- | source/blender/blenlib/intern/math_geom.c | 20 |
1 files changed, 2 insertions, 18 deletions
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c index 11875722d27..1d03bf42f83 100644 --- a/source/blender/blenlib/intern/math_geom.c +++ b/source/blender/blenlib/intern/math_geom.c @@ -721,24 +721,16 @@ bool isect_point_poly_v2(const float pt[2], const float verts[][2], const unsign /* first vector */ fp1[0] = (float)(p1[0] - pt[0]); fp1[1] = (float)(p1[1] - pt[1]); - normalize_v2(fp1); for (i = 0; i < nr; i++) { - float dot, ang, cross; p2 = verts[i]; /* second vector */ fp2[0] = (float)(p2[0] - pt[0]); fp2[1] = (float)(p2[1] - pt[1]); - normalize_v2(fp2); /* dot and angle and cross */ - dot = dot_v2v2(fp1, fp2); - ang = fabsf(saacos(dot)); - cross = (float)((p1[1] - p2[1]) * (p1[0] - pt[0]) + (p2[0] - p1[0]) * (p1[1] - pt[1])); - - if (cross < 0.0f) angletot -= ang; - else angletot += ang; + angletot += angle_signed_v2v2(fp1, fp2); /* circulate */ copy_v2_v2(fp1, fp2); @@ -769,24 +761,16 @@ bool isect_point_poly_v2_int(const int pt[2], const int verts[][2], const unsign /* first vector */ fp1[0] = (float)(p1[0] - pt[0]); fp1[1] = (float)(p1[1] - pt[1]); - normalize_v2(fp1); for (i = 0; i < nr; i++) { - float dot, ang, cross; p2 = verts[i]; /* second vector */ fp2[0] = (float)(p2[0] - pt[0]); fp2[1] = (float)(p2[1] - pt[1]); - normalize_v2(fp2); /* dot and angle and cross */ - dot = dot_v2v2(fp1, fp2); - ang = fabsf(saacos(dot)); - cross = (float)((p1[1] - p2[1]) * (p1[0] - pt[0]) + (p2[0] - p1[0]) * (p1[1] - pt[1])); - - if (cross < 0.0f) angletot -= ang; - else angletot += ang; + angletot += angle_signed_v2v2(fp1, fp2); /* circulate */ copy_v2_v2(fp1, fp2); |