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Added Quality weighted laplacian smoothing

This commit is contained in:
Paolo Cignoni 2006-11-07 11:28:02 +00:00
parent c22d64e65b
commit 62244759fc
1 changed files with 25 additions and 2 deletions
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25
vcg/complex/trimesh/smooth.h
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@ -23,6 +23,9 @@
/**************************************************************************** /****************************************************************************
History History
$Log: not supported by cvs2svn $ $Log: not supported by cvs2svn $
Revision 1.11 2006/10/19 07:33:03 cignoni
Corrected Laplacian, Added selection to HCSmooth
Revision 1.10 2006/09/25 09:41:41 cignoni Revision 1.10 2006/09/25 09:41:41 cignoni
Added new version of pasodoble smoothing Added new version of pasodoble smoothing
@ -211,8 +214,12 @@ public:
FLT cnt; FLT cnt;
}; };
// Classical Laplacian Smoothing. Each vertex can be moved onto the average of the adjacent vertices.
// Can smooth only the selected vertices and weight the smoothing according to the quality
// In the latter case 0 means that the vertex is not moved and 1 means that the vertex is moved onto the computed position.
template<class MESH_TYPE> template<class MESH_TYPE>
void LaplacianSmooth(MESH_TYPE &m, int step, bool SmoothSelected=false) void LaplacianSmooth(MESH_TYPE &m, int step, bool SmoothSelected=false, float QualityWeight=0)
{ {
SimpleTempData<typename MESH_TYPE::VertContainer,LaplacianInfo<typename MESH_TYPE::ScalarType> > TD(m.vert); SimpleTempData<typename MESH_TYPE::VertContainer,LaplacianInfo<typename MESH_TYPE::ScalarType> > TD(m.vert);
LaplacianInfo<typename MESH_TYPE::ScalarType> lpz; LaplacianInfo<typename MESH_TYPE::ScalarType> lpz;
@ -263,6 +270,20 @@ void LaplacianSmooth(MESH_TYPE &m, int step, bool SmoothSelected=false)
++TD[(*fi).V1(j)].cnt; ++TD[(*fi).V1(j)].cnt;
} }
if(QualityWeight>0)
{ // quality weighted smoothing
// We assume that weights are in the 0..1 range.
assert(tri::HasPerVertexQuality(m));
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if(!(*vi).IsD() && TD[*vi].cnt>0 )
if(!SmoothSelected || (*vi).IsS())
{
float q=1.0-(*vi).Q();
(*vi).P()=(*vi).P()*(1.0-q) + (TD[*vi].sum/TD[*vi].cnt)*q;
}
}
else
for(vi=m.vert.begin();vi!=m.vert.end();++vi) for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if(!(*vi).IsD() && TD[*vi].cnt>0 ) if(!(*vi).IsD() && TD[*vi].cnt>0 )
if(!SmoothSelected || (*vi).IsS()) if(!SmoothSelected || (*vi).IsS())
@ -347,6 +368,8 @@ void HCSmooth(MESH_TYPE &m, int step, bool SmoothSelected=false )
}; };
// Laplacian smooth of the quality.
template<class FLT> template<class FLT>
class QualitySmoothInfo class QualitySmoothInfo
{ {