diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2012-03-14 10:14:15 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2012-03-14 10:14:15 +0400 |
| commit | ee9a00948b950f8361ef280b5f88674721a6698f (patch) | |
| tree | f75025f04750f530692baf00cc924bbb57d4f5f2 /source/blender/blenlib/intern/math_vector_inline.c | |
| parent | f15c15e992a9836a7295166af275522690ada315 (diff) | |
mathutils py api:
Vector.angle_signed(other)
for 2D vectors to get the clockwise angle between them.
in BLI math its called - angle_signed_v2v2()
shorthand for...
atan2f((v1[1] * v2[0]) - (v1[0] * v2[1]), dot_v2v2(v1, v2))
also corrects compile error in last commit.
Diffstat (limited to 'source/blender/blenlib/intern/math_vector_inline.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_vector_inline.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/math_vector_inline.c b/source/blender/blenlib/intern/math_vector_inline.c index 6414245fb3e..96587da9784 100644 --- a/source/blender/blenlib/intern/math_vector_inline.c +++ b/source/blender/blenlib/intern/math_vector_inline.c @@ -625,6 +625,12 @@ MINLINE void normal_float_to_short_v3(short out[3], const float in[3]) /********************************* Comparison ********************************/ + +MINLINE int is_zero_v2(const float v[3]) +{ + return (v[0] == 0 && v[1] == 0); +} + MINLINE int is_zero_v3(const float v[3]) { return (v[0] == 0 && v[1] == 0 && v[2] == 0); |