Initial commit
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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) 2004 \/)\/ *
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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 __VCGLIB_IMPORT_OFF
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#define __VCGLIB_IMPORT_OFF
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#include <fstream>
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#include <string>
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#include <vector>
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#include <assert.h>
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#include <vcg/space/color4.h>
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namespace vcg
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{
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namespace tri
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{
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namespace io
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{
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// /** \addtogroup */
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// /* @{ */
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template<class MESH_TYPE>
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class ImporterOFF
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{
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public:
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typedef typename MESH_TYPE::VertexType VertexType;
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typedef typename MESH_TYPE::VertexIterator VertexIterator;
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typedef typename MESH_TYPE::VertexPointer VertexPointer;
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typedef typename MESH_TYPE::FaceType FaceType;
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typedef typename MESH_TYPE::FaceIterator FaceIterator;
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typedef typename MESH_TYPE::FacePointer FacePointer;
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typedef typename MESH_TYPE::CoordType CoordType;
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typedef typename MESH_TYPE::ScalarType ScalarType;
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/*!
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* Standard call for knowing the meaning of an error code
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* \param message_code The code returned by <CODE>Open</CODE>
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* \return The string describing the error code
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*/
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static const char* ErrorMsg(int message_code)
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{
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static const char* error_msg[3] =
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{
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"No errors", "Can't open file", "Premature End of file",
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};
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if(message_code>2 || message_code<0)
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return "Unknown error";
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else
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return error_msg[message_code];
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};
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/*!
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* Standard call for reading a mesh
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* \param mesh the destination mesh
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* \param filename the name of the file to read from
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* \return the operation result
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*/
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static int Open(MESH_TYPE &mesh, const char *filename)
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{
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mesh.Clear();
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bool isNormalDefined = false;
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bool isColorDefined = false;
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bool isTexCoordDefined = false;
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int dimension = 3;
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std::ifstream stream(filename);
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if (stream.fail())
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return OFFCodes::CantOpen;
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std::vector< std::string > tokens;
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TokenizeNextLine(stream, tokens);
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if (tokens[tokens.size()-1].rfind('OFF')!= std::basic_string<char>::npos)
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{
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for (int u=tokens.size()-2; u>=0; u--)
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{
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std::string header = tokens[u];
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if (header.compare("C")==0)
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{
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isColorDefined = true;
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continue;
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}
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if (header.compare("N")==0)
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{
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isNormalDefined = true;
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continue;
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}
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if (header.compare("ST")==0)
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{
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isTexCoordDefined = true;
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continue;
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}
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}
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if (tokens[tokens.size()-1].compare("4OFF")==0)
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dimension = 4;
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else if (tokens[tokens.size()-1].compare("nOFF")==0)
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{
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TokenizeNextLine(stream, tokens);
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dimension = atoi(tokens[0].c_str());
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}
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else
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dimension = 3;
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TokenizeNextLine(stream, tokens);
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}
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unsigned int nVertices, nFaces, nEdges;
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nVertices = atoi(tokens[0].c_str());
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nFaces = atoi(tokens[1].c_str());
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nEdges = atoi(tokens[2].c_str());
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assert(dimension = 3);
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VertexIterator v_iter = Allocator<MESH_TYPE>::AddVertices(mesh, nVertices);
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for (unsigned int i=0; i<nVertices; i++, v_iter++)
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{
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if (stream.fail())
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return OFFCodes::UnexpectedEOF;
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TokenizeNextLine(stream, tokens);
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for (unsigned int j=0; j<3; j++)
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(*v_iter).P()[j] = (ScalarType) atof(tokens[j].c_str());
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if (isNormalDefined)
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for (unsigned int j=3; j<6; j++)
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(*v_iter).N()[j] = (ScalarType) atof(tokens[j].c_str());
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if (isColorDefined) {}
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if (isTexCoordDefined) {}
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}
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Allocator<MESH_TYPE>::AddFaces(mesh, nFaces);
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unsigned int f0=0;
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for (unsigned int f=0; f<nFaces; f++)
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{
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f0 = f;
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if (stream.fail())
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return OFFCodes::UnexpectedEOF;
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TokenizeNextLine(stream, tokens);
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int vert_per_face = atoi(tokens[0].c_str());
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if (vert_per_face == 3)
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{
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mesh.face[f].V(0) = &(mesh.vert[ atoi(tokens[1].c_str()) ]);
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mesh.face[f].V(1) = &(mesh.vert[ atoi(tokens[2].c_str()) ]);
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mesh.face[f].V(2) = &(mesh.vert[ atoi(tokens[3].c_str()) ]);
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}
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else
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{
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unsigned int trigs = vert_per_face-3;
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nFaces += trigs;
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Allocator<MESH_TYPE>::AddFaces(mesh, trigs);
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int *vertIndices = new int[vert_per_face];
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for (int k=0; k<vert_per_face; k++)
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vertIndices[k] = atoi(tokens[1+k].c_str());
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for (int k=0; k<=vert_per_face-3; k++)
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{
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mesh.face[f+k].V(0) = &(mesh.vert[ vertIndices[0 ] ]);
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mesh.face[f+k].V(1) = &(mesh.vert[ vertIndices[1+k] ]);
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mesh.face[f+k].V(2) = &(mesh.vert[ vertIndices[2+k] ]);
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}
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f+=trigs;
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delete []vertIndices;
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}
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if (isColorDefined)
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{
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size_t color_elements = tokens.size()-vert_per_face-1;
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switch (color_elements)
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{
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case 0:
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{
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for ( ; f0<=f; f0++)
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mesh.face[f0].C().Import(vcg::Color4f(.666f, .666f, .666f, .666f));
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break;
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}
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case 1:
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{
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for ( ; f0<=f; f0++)
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mesh.face[f0].C().Import( ColorMap( atoi(tokens[vert_per_face+1].c_str()) ) );
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break;
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}
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case 3:
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{
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if (tokens[vert_per_face+1].find('.')==-1)
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{
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int rgb[3];
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rgb[0] = atoi( tokens[vert_per_face+1].c_str() );
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rgb[1] = atoi( tokens[vert_per_face+2].c_str() );
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rgb[2] = atoi( tokens[vert_per_face+3].c_str() );
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for ( ; f0<=f; f0++)
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mesh.face[f0].C().SetRGB(rgb[0], rgb[1], rgb[2]);
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}
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else
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{
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float color[3];
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color[0] = (float) atof( tokens[vert_per_face+1].c_str() );
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color[1] = (float) atof( tokens[vert_per_face+2].c_str() );
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color[2] = (float) atof( tokens[vert_per_face+3].c_str() );
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for ( ; f0<=f; f0++)
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mesh.face[f0].C().Import(vcg::Color4f(color[0], color[1], color[2], 1.0f));
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}
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break;
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}
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case 4:
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{
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if (tokens[vert_per_face+1].find('.')==-1)
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{
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unsigned char color[4];
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color[0] = (unsigned char) atoi(tokens[vert_per_face+1].c_str());
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color[1] = (unsigned char) atoi(tokens[vert_per_face+2].c_str());
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color[2] = (unsigned char) atoi(tokens[vert_per_face+3].c_str());
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color[3] = (unsigned char) atoi(tokens[vert_per_face+4].c_str());
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for ( ; f0<=f; f0++)
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mesh.face[f0].C().Import(vcg::Color4f(color[0], color[1], color[2], color[3]));
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}
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else
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{
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float color[4];
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color[0] = (ScalarType) atof(tokens[vert_per_face+1].c_str());
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color[1] = (ScalarType) atof(tokens[vert_per_face+2].c_str());
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color[2] = (ScalarType) atof(tokens[vert_per_face+3].c_str());
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color[3] = (ScalarType) atof(tokens[vert_per_face+4].c_str());
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for ( ; f0<=f; f0++)
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mesh.face[f0].C().Import(vcg::Color4f(color[0], color[1], color[2], color[3]));
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}
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break;
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}
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} //end switch
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} // end if (isColorDefined)
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}
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return OFFCodes::NoError;
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} // end Open
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protected:
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enum OFFCodes {NoError, CantOpen, UnexpectedEOF};
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/*!
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* Read the next valid line and parses it into "tokens", allowing the tokens to be read one at a time.
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* \param stream The object providing the input stream
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* \param tokens The "tokens" in the next line
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*/
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inline static const void TokenizeNextLine(std::ifstream &stream, std::vector< std::string > &tokens)
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{
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std::string line;
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do
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std::getline(stream, line, '\n');
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while (line[0] == '#' || line.length()==0);
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size_t from = 0;
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size_t to = 0;
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size_t length = line.size();
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tokens.clear();
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do
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{
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while (line[from]==' ' && from!=length)
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from++;
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to = from+1;
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while (line[to]!=' ' && to!=length)
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to++;
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tokens.push_back(line.substr(from, to-from).c_str());
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from = to;
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}
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while (from<length);
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} // end Tokenize
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/*!
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* Provide the int->color mapping, according to the Geomview's `cmap.fmap' file.
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* \param i the color index
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* \return the corresponding <CODE>vcg::Color4f</CODE> color
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*/
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static const vcg::Color4f ColorMap(int i)
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{
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static const float colorMap[148][4] =
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{
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.2f, 0.2f, 0.2f, 0.2f },
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{ 0.9f, 0.9f, 0.9f, 0.9f },
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{ 0.1f, 0.1f, 0.1f, 0.1f },
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{ 0.1f, 0.1f, 0.1f, 0.1f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.9f, 0.9f, 0.9f, 0.9f },
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{ 0.2f, 0.2f, 0.2f, 0.2f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.75f, 0.75f, 0.75f, 0.75f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.9f, 0.9f, 0.9f, 0.9f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.75f, 0.75f, 0.75f, 0.75f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.9f, 0.9f, 0.9f, 0.9f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.75f, 0.75f, 0.75f, 0.75f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.9f, 0.9f, 0.9f, 0.9f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.75f, 0.75f, 0.75f, 0.75f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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{ 0.4f, 0.4f, 0.4f, 0.4f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 1.0f, 1.0f, 1.0f, 1.0f },
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{ 0.05f, 0.05f, 0.05f, 0.05f },
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{ 0.7f, 0.7f, 0.7f, 0.7f },
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{ 0.2f, 0.2f, 0.2f, 0.2f },
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||||
{ 0.9f, 0.9f, 0.9f, 0.9f },
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||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.1f, 0.1f, 0.1f, 0.1f },
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{ 0.8f, 0.8f, 0.8f, 0.8f },
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||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
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||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
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||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
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||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.9f, 0.9f, 0.9f, 0.9f },
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||||
{ 0.9f, 0.9f, 0.9f, 0.9f },
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||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
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||||
{ 0.75f, 0.75f, 0.75f, 0.75f },
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||||
{ 0.75f, 0.75f, 0.75f, 0.75f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.9f, 0.9f, 0.9f, 0.9f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.75f, 0.75f, 0.75f, 0.75f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.9f, 0.9f, 0.9f, 0.9f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.75f, 0.75f, 0.75f, 0.75f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.7f, 0.7f, 0.7f, 0.7f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.9f, 0.9f, 0.9f, 0.9f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.75f, 0.75f, 0.75f, 0.75f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.0f, 0.0f, 0.0f, 0.0f },
|
||||
{ 0.4f, 0.4f, 0.4f, 0.4f },
|
||||
{ 0.8f, 0.8f, 0.8f, 0.8f }
|
||||
};
|
||||
return Color4f(colorMap[i][0], colorMap[i][1], colorMap[i][2], colorMap[i][3]);
|
||||
}
|
||||
};
|
||||
// /*! @} */
|
||||
}; //namespace io
|
||||
};//namespace tri
|
||||
}; // namespace vcg
|
||||
|
||||
#endif //__VCGLIB_IMPORT_OFF
|
Loading…
Reference in New Issue