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correced the point-edge distance functor and added a pair of templated helper functions for edges (lenght and center)

This commit is contained in:
Paolo Cignoni 2015-12-29 07:21:30 +00:00
parent 37716e73e5
commit 952913c1de
1 changed files with 19 additions and 2 deletions
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21
vcg/simplex/edge/distance.h
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@ -31,6 +31,7 @@
#include <vcg/math/base.h> #include <vcg/math/base.h>
#include <vcg/space/point3.h> #include <vcg/space/point3.h>
#include <vcg/space/distance3.h>
#include <vcg/space/segment3.h> #include <vcg/space/segment3.h>
@ -48,8 +49,11 @@ namespace vcg {
s.P0()=e.V(0)->P(); s.P0()=e.V(0)->P();
s.P1()=e.V(1)->P(); s.P1()=e.V(1)->P();
typename EdgeType::CoordType nearest; typename EdgeType::CoordType nearest;
nearest=vcg::ClosestPoint<typename EdgeType::ScalarType>(s,q); typename EdgeType::ScalarType d;
typename EdgeType::ScalarType d=(q-nearest).Norm(); // nearest=vcg::ClosestPoint<typename EdgeType::ScalarType>(s,q);
// d=(q-nearest).Norm();
vcg::SegmentPointDistance(s,q ,nearest,d);
if (d<dist){ if (d<dist){
dist=d; dist=d;
p=nearest; p=nearest;
@ -78,6 +82,19 @@ namespace vcg {
} }
}; };
template <class EdgeType>
typename EdgeType::ScalarType Length(const EdgeType &e)
{
return Distance(e.cV(0)->cP(),e.cV(1)->cP());
}
template <class EdgeType>
typename EdgeType::VertexType::CoordType Center(const EdgeType &e)
{
return (e.cV(0)->cP()+e.cV(1)->cP())/2.0;
}
} // end namespace edge } // end namespace edge
} // end namespace vcg } // end namespace vcg