106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004-2016 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.1 2005/07/06 08:02:27 cignoni
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Initial commit
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****************************************************************************/
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#ifndef __VCG_TRI_UPDATE_POSITION
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#define __VCG_TRI_UPDATE_POSITION
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#include "normal.h"
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namespace vcg {
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namespace tri {
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/// \ingroup trimesh
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/// \headerfile position.h vcg/complex/algorithms/update/position.h
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/// \brief This class is used to update vertex position according to a transformation matrix.
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template <class ComputeMeshType>
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class UpdatePosition
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{
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public:
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typedef ComputeMeshType MeshType;
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typedef typename MeshType::ScalarType ScalarType;
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typedef typename MeshType::VertexType VertexType;
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typedef typename MeshType::VertexPointer VertexPointer;
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typedef typename MeshType::VertexIterator VertexIterator;
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typedef typename MeshType::FaceType FaceType;
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typedef typename MeshType::FacePointer FacePointer;
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typedef typename MeshType::FaceIterator FaceIterator;
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/// \brief Multiply
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static void Matrix(ComputeMeshType &m, const Matrix44<ScalarType> &M, bool update_also_normals = true)
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{
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VertexIterator vi;
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for(vi=m.vert.begin();vi!=m.vert.end();++vi)
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if(!(*vi).IsD()) (*vi).P()=M*(*vi).cP();
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if(update_also_normals){
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if(HasPerVertexNormal(m)){
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UpdateNormal<ComputeMeshType>::PerVertexMatrix(m,M);
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}
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if(HasPerFaceNormal(m)){
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UpdateNormal<ComputeMeshType>::PerFaceMatrix(m,M);
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}
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}
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}
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static void Translate(ComputeMeshType &m, const Point3<ScalarType> &t)
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{
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VertexIterator vi;
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for(vi=m.vert.begin();vi!=m.vert.end();++vi)
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if(!(*vi).IsD()) (*vi).P()+=t;
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}
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static void Scale(ComputeMeshType &m, const ScalarType s)
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{
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Scale(m,Point3<ScalarType>(s,s,s));
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}
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static void Scale(ComputeMeshType &m, const Point3<ScalarType> &s)
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{
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VertexIterator vi;
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for(vi=m.vert.begin();vi!=m.vert.end();++vi)
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if(!(*vi).IsD()) {
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(*vi).P()[0]*=s[0];
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(*vi).P()[1]*=s[1];
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(*vi).P()[2]*=s[2];
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}
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}
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}; // end class
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} // End namespace
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} // End namespace
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#endif
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