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author | Hans Goudey <h.goudey@me.com> | 2020-09-01 20:35:14 +0300 |
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committer | Hans Goudey <h.goudey@me.com> | 2020-09-01 20:38:05 +0300 |
commit | baca8611e5fe4b3dcd6f5065fb125bc0a9d65934 (patch) | |
tree | bb1230387cd53b15f9621f10c4d0e5e2050b5580 /source/blender/blenlib/BLI_float2.hh | |
parent | 31705201dddebf7e3be5c4533b89f380aad1ede1 (diff) | |
parent | 2930d4fcea405985f2212c5f28c061af7c4849f8 (diff) |
Merge branch 'master' into active-fcurve-keyframeactive-fcurve-keyframe
Diffstat (limited to 'source/blender/blenlib/BLI_float2.hh')
-rw-r--r-- | source/blender/blenlib/BLI_float2.hh | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_float2.hh b/source/blender/blenlib/BLI_float2.hh index e55a8de4633..1290eb6c65c 100644 --- a/source/blender/blenlib/BLI_float2.hh +++ b/source/blender/blenlib/BLI_float2.hh @@ -47,6 +47,11 @@ struct float2 { return &x; } + float length() const + { + return len_v2(*this); + } + float2 &operator+=(const float2 &other) { x += other.x; @@ -107,6 +112,47 @@ struct float2 { return stream; } + static float dot(const float2 &a, const float2 &b) + { + return a.x * b.x + a.y * b.y; + } + + static float2 interpolate(const float2 &a, const float2 &b, float t) + { + return a * (1 - t) + b * t; + } + + static float2 abs(const float2 &a) + { + return float2(fabsf(a.x), fabsf(a.y)); + } + + static float distance(const float2 &a, const float2 &b) + { + return (a - b).length(); + } + + static float distance_squared(const float2 &a, const float2 &b) + { + return float2::dot(a, b); + } + + struct isect_result { + enum { + LINE_LINE_COLINEAR = -1, + LINE_LINE_NONE = 0, + LINE_LINE_EXACT = 1, + LINE_LINE_CROSS = 2, + } kind; + float lambda; + float mu; + }; + + static isect_result isect_seg_seg(const float2 &v1, + const float2 &v2, + const float2 &v3, + const float2 &v4); + friend bool operator==(const float2 &a, const float2 &b) { return a.x == b.x && a.y == b.y; |