95 lines
6.1 KiB
C++
95 lines
6.1 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "writeOFF.h"
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#include <cstdio>
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#include <fstream>
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// write mesh to an ascii off file
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template <typename DerivedV, typename DerivedF>
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IGL_INLINE bool igl::writeOFF(
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const std::string fname,
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const Eigen::PlainObjectBase<DerivedV>& V,
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const Eigen::PlainObjectBase<DerivedF>& F)
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{
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using namespace std;
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using namespace Eigen;
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assert(V.cols() == 3 && "V should have 3 columns");
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ofstream s(fname);
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if(!s.is_open())
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{
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fprintf(stderr,"IOError: writeOFF() could not open %s\n",fname.c_str());
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return false;
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}
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s<<
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"OFF\n"<<V.rows()<<" "<<F.rows()<<" 0\n"<<
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V.format(IOFormat(FullPrecision,DontAlignCols," ","\n","","","","\n"))<<
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(F.array()).format(IOFormat(FullPrecision,DontAlignCols," ","\n","3 ","","","\n"));
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return true;
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}
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// write mesh and colors-by-vertex to an ascii off file
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template <typename DerivedV, typename DerivedF, typename DerivedC>
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IGL_INLINE bool igl::writeOFF(
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const std::string fname,
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const Eigen::PlainObjectBase<DerivedV>& V,
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const Eigen::PlainObjectBase<DerivedF>& F,
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const Eigen::PlainObjectBase<DerivedC>& C)
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{
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using namespace std;
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using namespace Eigen;
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assert(V.cols() == 3 && "V should have 3 columns");
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assert(C.cols() == 3 && "C should have 3 columns");
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if(V.rows() != C.rows())
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{
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fprintf(stderr,"IOError: writeOFF() Only color per vertex supported. V and C should have same size.\n");
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return false;
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}
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ofstream s(fname);
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if(!s.is_open())
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{
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fprintf(stderr,"IOError: writeOFF() could not open %s\n",fname.c_str());
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return false;
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}
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//Check if RGB values are in the range [0..1] or [0..255]
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int rgbScale = (C.maxCoeff() <= 1.0)?255:1;
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// Use RGB_Array instead of RGB because of clash with mingw macro
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// (https://github.com/libigl/libigl/pull/679)
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Eigen::MatrixXd RGB_Array = rgbScale * C;
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s<< "COFF\n"<<V.rows()<<" "<<F.rows()<<" 0\n";
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for (unsigned i=0; i< V.rows(); i++)
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{
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s <<V.row(i).format(IOFormat(FullPrecision,DontAlignCols," "," ","","",""," "));
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s << unsigned(RGB_Array(i,0)) << " " << unsigned(RGB_Array(i,1)) << " " << unsigned(RGB_Array(i,2)) << " 255\n";
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}
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s<<(F.array()).format(IOFormat(FullPrecision,DontAlignCols," ","\n","3 ","","","\n"));
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return true;
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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// generated by autoexplicit.sh
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template bool igl::writeOFF<Eigen::Matrix<float, -1, 3, 1, -1, 3>, Eigen::Matrix<int, -1, 3, 1, -1, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<float, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&);
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// generated by autoexplicit.sh
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template bool igl::writeOFF<Eigen::Matrix<double, 8, 3, 0, 8, 3>, Eigen::Matrix<int, 12, 3, 0, 12, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, 8, 3, 0, 8, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, 12, 3, 0, 12, 3> > const&);
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// generated by autoexplicit.sh
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template bool igl::writeOFF<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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template bool igl::writeOFF<Eigen::Matrix<double, -1, 3, 1, -1, 3>, Eigen::Matrix<unsigned int, -1, -1, 1, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<unsigned int, -1, -1, 1, -1, -1> > const&);
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template bool igl::writeOFF<Eigen::Matrix<float, -1, 3, 1, -1, 3>, Eigen::Matrix<unsigned int, -1, -1, 1, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<float, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<unsigned int, -1, -1, 1, -1, -1> > const&);
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template bool igl::writeOFF<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&);
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template bool igl::writeOFF<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 3, 0, -1, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&);
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template bool igl::writeOFF<Eigen::Matrix<double, -1, 3, 1, -1, 3>, Eigen::Matrix<int, -1, 3, 1, -1, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&);
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template bool igl::writeOFF<Eigen::Matrix<double, -1, 3, 1, -1, 3>, Eigen::Matrix<int, -1, 3, 1, -1, 3>, Eigen::Matrix<double, -1, 3, 1, -1, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&);
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template bool igl::writeOFF<Eigen::Matrix<double, -1, 3, 1, -1, 3>, Eigen::Matrix<unsigned int, -1, 3, 1, -1, 3>, Eigen::Matrix<double, -1, 3, 1, -1, 3> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<unsigned int, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&);
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#endif
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