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First working version!

This commit is contained in:
Paolo Cignoni 2004-03-04 00:29:45 +00:00
parent bace904c2e
commit 36829a099d
1 changed files with 0 additions and 115 deletions
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vcg/complex/trimesh/compute.h
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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
****************************************************************************/
template <class ComputeMeshType>
class TriMeshCompute
{
public:
static void FaceNormalRW(ComputeMeshType &m, bool normalize=false)
{
if( !m.HasPerFaceNormal()) return;
face_iterator f;
bool cn = true;
if(normalize)
{
for(f=m.face.begin();f!=m.face.end();++f)
if( !(*f).IsD() && (*f).IsRW() )
{
for(int j=0; j<(*f).size(); ++j)
if( !(*f).V(j)->IsR()) cn = false;
if( cn ) (*f).ComputeNormalizedNormal();
cn = true;
}
}
else
{
for(f=m.face.begin();f!=m.face.end();++f)
if( !(*f).IsD() && (*f).IsRW() )
{
for(int j=0; j<(*f).size(); ++j)
if( !(*f).V(j)->IsR()) cn = false;
if( cn )
(*f).ComputeNormal();
cn = true;
}
}
}
static void NormalizedFaceNormal(ComputeMeshType &m)
{
ComputeFaceNormal(true);
}
/// Calculates the vertex normal
static void NormalizedVertexNormal(ComputeMeshType &m)
{
VertexNormal(true);
}
/// Calculates the vertex normal
static void VertexNormal(ComputeMeshType &m, bool normalize=false)
{
if( m.HasPerVertexNormal())
{
vertex_iterator vi;
for(vi=vert.begin();vi!=vert.end();++vi)
if( !(*vi).IsDeleted() && (*vi).IsRW() )
(*vi).Normal() = vectorial_type(0,0,0);
face_iterator f;
for(f=face.begin();f!=face.end();++f)
if( !(*f).IsDeleted() && (*f).IsR() )
{
vectorial_type t = (*f).Normal();
for(int j=0; j<(*f).size(); ++j)
if( !(*f).V(j)->IsD() && (*f).V(j)->IsR() && (*f).V(j)->IsW() )
(*f).V(j)->Normal() += t;
}
if(normalize)
for(vi=vert.begin();vi!=vert.end();++vi)
if( !(*vi).IsDeleted() && (*vi).IsRW() )
(*vi).Normal().Normalize();
}
}
void ComputeE()
{
face_iterator f;
for(f = face.begin(); f!=face.end(); ++f)
(*f).ComputeE();
}
}; // end class