diff options
| author | Miika Hamalainen <blender@miikah.org> | 2011-05-24 11:08:58 +0400 |
|---|---|---|
| committer | Miika Hamalainen <blender@miikah.org> | 2011-05-24 11:08:58 +0400 |
| commit | 3b41ab432badf2d4598b798e0d0c6c9ece51172b (patch) | |
| tree | 8b646a88ae5dbc8441b0434fc925f7e3f09c7bb5 /source/blender/blenlib/intern/math_geom.c | |
| parent | 25e276d3570d292f7e0a1306a864419024465d3b (diff) | |
Applied Dynamic Paint 1.18f patch as a codebase for GSoC.
Diffstat (limited to 'source/blender/blenlib/intern/math_geom.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_geom.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c index 5979a24c807..fb9d609b116 100644 --- a/source/blender/blenlib/intern/math_geom.c +++ b/source/blender/blenlib/intern/math_geom.c @@ -211,6 +211,21 @@ float dist_to_line_segment_v2(const float v1[2], const float v2[2], const float return sqrtf(rc[0]*rc[0]+ rc[1]*rc[1]); } +/* point closest to v1 on line v2-v3 in 2D */ +void closest_to_line_segment_v2(float *closest, float p[2], float l1[2], float l2[2]) +{ + float lambda, cp[2]; + + lambda= closest_to_line_v2(cp,p, l1, l2); + + if(lambda <= 0.0f) + copy_v2_v2(closest, l1); + else if(lambda >= 1.0f) + copy_v2_v2(closest, l2); + else + copy_v2_v2(closest, cp); +} + /* point closest to v1 on line v2-v3 in 3D */ void closest_to_line_segment_v3(float closest[3], const float v1[3], const float v2[3], const float v3[3]) { |