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added CosWedge which returns the cos of a wedge

This commit is contained in:
mtarini 2009-05-26 17:50:18 +00:00
parent 37057700b2
commit 0856e6a2eb
1 changed files with 9 additions and 0 deletions
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9
vcg/space/triangle3.h
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@ -419,6 +419,15 @@ typename TriangleType::ScalarType DoubleArea(const TriangleType &t)
return Norm( (t.P(1) - t.P(0)) ^ (t.P(2) - t.P(0)) ); return Norm( (t.P(1) - t.P(0)) ^ (t.P(2) - t.P(0)) );
} }
template<class TriangleType>
typename TriangleType::ScalarType CosWedge(const TriangleType &t, int k)
{
typename TriangleType::CoordType
e0 = t.P((k+1)%3) - t.P(k),
e1 = t.P((k+2)%3) - t.P(k);
return (e0*e1)/(e0.Norm()*e1.Norm());
}
template<class TriangleType> template<class TriangleType>
Point3<typename TriangleType::ScalarType> Barycenter(const TriangleType &t) Point3<typename TriangleType::ScalarType> Barycenter(const TriangleType &t)
{ {