add vcglib
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/****************************************************************************
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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) 2011 \/)\/ *
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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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#ifndef EXPORT_CTM_H
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#define EXPORT_CTM_H
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namespace vcg {
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namespace tri {
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namespace io {
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template <class SaveMeshType>
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class ExporterCTM
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{
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public:
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typedef typename SaveMeshType::VertexPointer VertexPointer;
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typedef typename SaveMeshType::FaceIterator FaceIterator;
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static int Save(SaveMeshType &m, const char * filename, int mask=0, bool lossLessFlag=false, float relativePrecision=0.0001)
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{
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tri::Allocator<SaveMeshType>::CompactVertexVector(m);
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tri::Allocator<SaveMeshType>::CompactFaceVector(m);
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CTMuint aVertCount=m.vn;
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CTMuint aTriCount=m.fn;
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std::vector<CTMfloat> aVertices(aVertCount*3);
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std::vector<CTMfloat> aColors(aVertCount*4);
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std::vector<CTMfloat> aQuality(aVertCount*4);
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std::vector<CTMuint> aIndices(aTriCount*3);
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int err;
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CTMcontext context;
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// Create a new exporter context
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context = ctmNewContext(CTM_EXPORT);
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if(lossLessFlag) ctmCompressionMethod(context, CTM_METHOD_MG1);
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else {
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ctmCompressionMethod(context, CTM_METHOD_MG2);
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ctmVertexPrecision(context, relativePrecision);
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}
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// Prepare vertex and faces
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for(unsigned int i=0;i<aVertCount;++i)
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{
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aVertices[i*3+0]=m.vert[i].P()[0];
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aVertices[i*3+1]=m.vert[i].P()[1];
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aVertices[i*3+2]=m.vert[i].P()[2];
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}
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for(unsigned int i=0;i<aTriCount;++i)
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{
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aIndices[i*3+0]=m.face[i].V(0)-&*m.vert.begin();
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aIndices[i*3+1]=m.face[i].V(1)-&*m.vert.begin();
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aIndices[i*3+2]=m.face[i].V(2)-&*m.vert.begin();
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}
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if(aTriCount==0)
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{
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aIndices.resize(3,0);
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aTriCount=1;
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}
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// Define our mesh representation to OpenCTM
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ctmDefineMesh(context, &*aVertices.begin(), aVertCount, &*aIndices.begin(), aTriCount, NULL);
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err=ctmGetError(context);
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if(err) return err;
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if( tri::HasPerVertexColor(m) && (mask & io::Mask::IOM_VERTCOLOR))
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{
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aColors.resize(aVertCount*4);
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for(unsigned int i=0;i<aVertCount;++i)
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{
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aColors[i*4+0]=(float)(m.vert[i].C()[0])/255.0f;
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aColors[i*4+1]=(float)(m.vert[i].C()[1])/255.0f;
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aColors[i*4+2]=(float)(m.vert[i].C()[2])/255.0f;
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aColors[i*4+3]=(float)(m.vert[i].C()[3])/255.0f;
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}
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ctmAddAttribMap(context,&aColors[0], "Color");
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}
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if( tri::HasPerVertexQuality(m) && (mask & io::Mask::IOM_VERTQUALITY))
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{
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aQuality.resize(aVertCount*4,0);
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for(unsigned int i=0;i<aVertCount;++i)
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{
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aQuality[i*4+0]=m.vert[i].Q();
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}
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ctmAddAttribMap(context,&aQuality[0], "Quality");
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}
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// Save the OpenCTM file
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ctmSave(context, filename);
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err=ctmGetError(context);
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if(err) return err;
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// Free the context
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ctmFreeContext(context);
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return err;
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}
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/*
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returns mask of capability one define with what are the saveable information of the format.
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*/
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static int GetExportMaskCapability()
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{
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int capability = 0;
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//vert
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capability |= vcg::tri::io::Mask::IOM_VERTCOORD;
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capability |= vcg::tri::io::Mask::IOM_VERTQUALITY;
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capability |= vcg::tri::io::Mask::IOM_VERTCOLOR;
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return capability;
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}
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static const char *ErrorMsg(int error)
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{
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if(error==0) return "Ok, no errors";
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else return ctmErrorString((CTMenum)error);
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}
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};
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} // end namespace io
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} // end namespace tri
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} // end namespace vcg
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#endif // EXPORT_CTM_H
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