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Changed use of selected to visited flags. Improved variable namings and comments

This commit is contained in:
Paolo Cignoni 2007-03-27 09:40:47 +00:00
parent 81bfbcaed8
commit e7cf8d9203
1 changed files with 30 additions and 18 deletions
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46
vcg/complex/trimesh/smooth.h
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@ -23,6 +23,9 @@
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.13 2006/11/07 15:13:56 zifnab1974
Necessary changes for compilation with gcc 3.4.6. Especially the hash function is a problem
Revision 1.12 2006/11/07 11:28:02 cignoni
Added Quality weighted laplacian smoothing
@ -619,26 +622,26 @@ void NormalSmoothSB(MESH_TYPE &m,
for(fi=m.face.begin();fi!=m.face.end();++fi)
{
CoordType bc=(*fi).Barycenter();
// 1) Clear all the selected flag of faces that are vertex-adjacent to fi
// 1) Clear all the visited flag of faces that are vertex-adjacent to fi
for(i=0;i<3;++i)
{
vcg::face::VFIterator<typename MESH_TYPE::FaceType> ep(&*fi,i);
while (!ep.End())
{
ep.f->ClearS();
ep.f->ClearV();
++ep;
}
}
// 1) Effectively average the normals weighting them with
(*fi).SetS();
(*fi).SetV();
CoordType mm=CoordType(0,0,0);
for(i=0;i<3;++i)
{
vcg::face::VFIterator<typename MESH_TYPE::FaceType> ep(&*fi,i);
while (!ep.End())
{
if(! (*ep.f).IsS() )
if(! (*ep.f).IsV() )
{
if(sigma>0)
{
@ -647,7 +650,7 @@ void NormalSmoothSB(MESH_TYPE &m,
mm+=ep.f->N()*exp((-sigma)*ang*ang/dd);
}
else mm+=ep.f->N();
(*ep.f).SetS();
(*ep.f).SetV();
}
++ep;
}
@ -665,7 +668,9 @@ void NormalSmoothSB(MESH_TYPE &m,
// Normalized Face Normals
//
// This is the Normal Smoothing approach bsased on a angle thresholded weighting
// sigma is in the 0 .. 1 range
// sigma is in the 0 .. 1 range, it represent the cosine of a threshold angle.
// Only within the specified range are averaged toghether. The averagin is weighted with the
template<class MESH_TYPE>
void NormalSmooth(MESH_TYPE &m,
SimpleTempData<typename MESH_TYPE::FaceContainer,PDFaceInfo< typename MESH_TYPE::ScalarType > > &TD,
@ -681,37 +686,40 @@ void NormalSmooth(MESH_TYPE &m,
for(fi=m.face.begin();fi!=m.face.end();++fi)
{
CoordType bc=Barycenter<typename MESH_TYPE::FaceType>(*fi);
// 1) Clear all the selected flag of faces that are vertex-adjacent to fi
// 1) Clear all the visited flag of faces that are vertex-adjacent to fi
for(i=0;i<3;++i)
{
VFLocalIterator ep(&*fi,i);
for (;!ep.End();++ep)
ep.f->ClearS();
ep.f->ClearV();
}
// 1) Effectively average the normals weighting them with
//(*fi).SetS();
CoordType mm=CoordType(0,0,0);
//CoordType mm=(*fi).N();
// 1) Effectively average the normals weighting them with the squared difference of the angle similarity
// sigma is the cosine of a threshold angle. sigma \in 0..1
// sigma == 0 All the normals are averaged
// sigma == 1 Nothing is averaged.
// The averaging is weighted with the difference between normals. more similar the normal more important they are.
CoordType normalSum=CoordType(0,0,0);
for(i=0;i<3;++i)
{
VFLocalIterator ep(&*fi,i);
for (;!ep.End();++ep)
{
if(! (*ep.f).IsS() )
if(! (*ep.f).IsV() )
{
ScalarType cosang=ep.f->N()*(*fi).N();
if(cosang >= sigma)
{
ScalarType w = cosang-sigma;
mm += ep.f->N()*(w*w);
normalSum += ep.f->N()*(w*w); // similar normals have a cosang very close to 1 so cosang - sigma is maximized
}
(*ep.f).SetS();
(*ep.f).SetV();
}
}
}
mm.Normalize();
TD[*fi].m=mm;
normalSum.Normalize();
TD[*fi].m=normalSum;
}
for(fi=m.face.begin();fi!=m.face.end();++fi)
@ -875,6 +883,10 @@ void PasoDobleSmooth(MeshType &m, int step, typename MeshType::ScalarType Sigma=
TDV.Stop();
}
// The sigma parameter affect the normal smoothing step
template<class MeshType>
void PasoDobleSmoothFast(MeshType &m, int step, typename MeshType::ScalarType Sigma=0, int FitStep=50, bool SmoothSelected =false)
{