Cortex  10.0.0-a4
TriangleAlgo.h
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34 
38 
39 #ifndef IECORE_TRIANGLEALGO_H
40 #define IECORE_TRIANGLEALGO_H
41 
42 #include "IECore/VectorTraits.h"
43 
44 #include "OpenEXR/ImathVec.h"
45 
46 namespace IECore
47 {
48 
50 template<class Vec>
51 typename VectorTraits<Vec>::BaseType triangleArea( const Vec &v0, const Vec &v1, const Vec &v2 );
52 
56 template<class Vec>
57 Vec triangleNormal( const Vec &v0, const Vec &v1, const Vec &v2 );
58 
59 template<class Vec>
60 Vec trianglePoint( const Vec &v0, const Vec &v1, const Vec &v2, const Imath::Vec3<typename VectorTraits<Vec>::BaseType> &barycentric );
61 
63 template<class Vec>
64 typename VectorTraits<Vec>::BaseType triangleClosestBarycentric( const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p, Imath::Vec3<typename VectorTraits<Vec>::BaseType> &barycentric );
65 
67 template<class Vec>
68 Vec triangleClosestPoint( const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p, Imath::Vec3<typename VectorTraits<Vec>::BaseType> &barycentric );
69 
78 template<class Vec>
79 int triangleBarycentricFeature( const Vec &barycentric, typename VectorTraits<Vec>::BaseType tolerance = 1.e-6 );
80 
82 template<class Vec>
83 int triangleClosestFeature( const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p );
84 
85 template<class Vec>
86 bool triangleContainsPoint( const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p );
87 
88 template<class Vec>
89 bool triangleContainsPoint( const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p, Imath::Vec3<typename VectorTraits<Vec>::BaseType> &barycentric );
90 
93 template <class Vec>
94 bool triangleRayIntersection( const Vec &v0, const Vec &v1, const Vec &v2, const Vec &origin, const Vec &dir, Vec &pt, Vec &barycentric, bool &front );
95 
96 } // namespace IECore
97 
98 #include "IECore/TriangleAlgo.inl"
99 
100 #endif // IECORE_TRIANGLEALGO_H
VectorTraits< Vec >::BaseType triangleClosestBarycentric(const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p, Imath::Vec3< typename VectorTraits< Vec >::BaseType > &barycentric)
Returns the squared-distance to the closest point on the triangle, and places that point's barycentri...
int triangleBarycentricFeature(const Vec &barycentric, typename VectorTraits< Vec >::BaseType tolerance=1.e-6)
int triangleClosestFeature(const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p)
Returns the closest feature on the triangle to the given point. The return values are as barycentricF...
Vec triangleNormal(const Vec &v0, const Vec &v1, const Vec &v2)
bool triangleRayIntersection(const Vec &v0, const Vec &v1, const Vec &v2, const Vec &origin, const Vec &dir, Vec &pt, Vec &barycentric, bool &front)
Vec triangleClosestPoint(const Vec &v0, const Vec &v1, const Vec &v2, const Vec &p, Imath::Vec3< typename VectorTraits< Vec >::BaseType > &barycentric)
Returns the closest point on the triangle, and places that point's barycentric coordinates in the 4th...
This namespace contains all components of the core library.
Definition: AddSmoothSkinningInfluencesOp.h:43
VectorTraits< Vec >::BaseType triangleArea(const Vec &v0, const Vec &v1, const Vec &v2)