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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2016 \/)\/ *
* 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 $
Revision 1.1 2005/07/06 08:02:27 cignoni
Initial commit
****************************************************************************/
#ifndef __VCG_TRI_UPDATE_POSITION
#define __VCG_TRI_UPDATE_POSITION
#include "normal.h"
namespace vcg {
namespace tri {
/// \ingroup trimesh
/// \headerfile position.h vcg/complex/algorithms/update/position.h
/// \brief This class is used to update vertex position according to a transformation matrix.
template <class ComputeMeshType>
class UpdatePosition
{
public:
typedef ComputeMeshType MeshType;
typedef typename MeshType::ScalarType ScalarType;
typedef typename MeshType::VertexType VertexType;
typedef typename MeshType::VertexPointer VertexPointer;
typedef typename MeshType::VertexIterator VertexIterator;
typedef typename MeshType::FaceType FaceType;
typedef typename MeshType::FacePointer FacePointer;
typedef typename MeshType::FaceIterator FaceIterator;
/// \brief Multiply
static void Matrix(ComputeMeshType &m, const Matrix44<ScalarType> &M, bool update_also_normals = true)
{
VertexIterator vi;
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if(!(*vi).IsD()) (*vi).P()=M*(*vi).cP();
if(update_also_normals){
if(HasPerVertexNormal(m)){
UpdateNormal<ComputeMeshType>::PerVertexMatrix(m,M);
}
if(HasPerFaceNormal(m)){
UpdateNormal<ComputeMeshType>::PerFaceMatrix(m,M);
}
}
}
static void Translate(ComputeMeshType &m, const Point3<ScalarType> &t)
{
VertexIterator vi;
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if(!(*vi).IsD()) (*vi).P()+=t;
}
static void Scale(ComputeMeshType &m, const ScalarType s)
{
Scale(m,Point3<ScalarType>(s,s,s));
}
static void Scale(ComputeMeshType &m, const Point3<ScalarType> &s)
{
VertexIterator vi;
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if(!(*vi).IsD()) {
(*vi).P()[0]*=s[0];
(*vi).P()[1]*=s[1];
(*vi).P()[2]*=s[2];
}
}
}; // end class
} // End namespace
} // End namespace
#endif
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