170 lines
8.2 KiB
C++
170 lines
8.2 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 "writeOBJ.h"
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#include <iostream>
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#include <limits>
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#include <iomanip>
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#include <fstream>
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#include <cstdio>
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#include <cassert>
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedCN,
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typename DerivedFN,
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typename DerivedTC,
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typename DerivedFTC>
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IGL_INLINE bool igl::writeOBJ(
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const std::string str,
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const Eigen::MatrixBase<DerivedV>& V,
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const Eigen::MatrixBase<DerivedF>& F,
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const Eigen::MatrixBase<DerivedCN>& CN,
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const Eigen::MatrixBase<DerivedFN>& FN,
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const Eigen::MatrixBase<DerivedTC>& TC,
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const Eigen::MatrixBase<DerivedFTC>& FTC)
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{
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FILE * obj_file = fopen(str.c_str(),"w");
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if(NULL==obj_file)
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{
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printf("IOError: %s could not be opened for writing...",str.c_str());
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return false;
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}
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// Loop over V
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for(int i = 0;i<(int)V.rows();i++)
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{
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fprintf(obj_file,"v");
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for(int j = 0;j<(int)V.cols();++j)
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{
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fprintf(obj_file," %0.17g", V(i,j));
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}
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fprintf(obj_file,"\n");
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}
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bool write_N = CN.rows() >0;
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if(write_N)
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{
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for(int i = 0;i<(int)CN.rows();i++)
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{
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fprintf(obj_file,"vn %0.17g %0.17g %0.17g\n",
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CN(i,0),
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CN(i,1),
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CN(i,2)
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);
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}
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fprintf(obj_file,"\n");
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}
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bool write_texture_coords = TC.rows() >0;
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if(write_texture_coords)
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{
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for(int i = 0;i<(int)TC.rows();i++)
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{
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fprintf(obj_file, "vt %0.17g %0.17g\n",TC(i,0),TC(i,1));
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}
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fprintf(obj_file,"\n");
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}
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// loop over F
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for(int i = 0;i<(int)F.rows();++i)
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{
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fprintf(obj_file,"f");
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for(int j = 0; j<(int)F.cols();++j)
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{
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// OBJ is 1-indexed
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fprintf(obj_file," %u",F(i,j)+1);
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if(write_texture_coords)
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fprintf(obj_file,"/%u",FTC(i,j)+1);
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if(write_N)
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{
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if (write_texture_coords)
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fprintf(obj_file,"/%u",FN(i,j)+1);
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else
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fprintf(obj_file,"//%u",FN(i,j)+1);
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}
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}
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fprintf(obj_file,"\n");
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}
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fclose(obj_file);
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return true;
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}
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template <typename DerivedV, typename DerivedF>
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IGL_INLINE bool igl::writeOBJ(
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const std::string str,
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const Eigen::MatrixBase<DerivedV>& V,
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const Eigen::MatrixBase<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(str);
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if(!s.is_open())
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{
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fprintf(stderr,"IOError: writeOBJ() could not open %s\n",str.c_str());
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return false;
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}
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s<<
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V.format(IOFormat(FullPrecision,DontAlignCols," ","\n","v ","","","\n"))<<
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(F.array()+1).format(IOFormat(FullPrecision,DontAlignCols," ","\n","f ","","","\n"));
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return true;
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}
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template <typename DerivedV, typename T>
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IGL_INLINE bool igl::writeOBJ(
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const std::string &str,
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const Eigen::MatrixBase<DerivedV>& V,
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const std::vector<std::vector<T> >& 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(str);
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if(!s.is_open())
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{
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fprintf(stderr,"IOError: writeOBJ() could not open %s\n",str.c_str());
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return false;
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}
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s<<V.format(IOFormat(FullPrecision,DontAlignCols," ","\n","v ","","","\n"));
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for(const auto& face : F)
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{
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int face_size = face.size();
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assert(face_size != 0);
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s << (face_size == 2 ? "l" : "f");
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for(const auto& vi : face)
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{
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s<<" "<<vi;
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}
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s<<"\n";
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}
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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::writeOBJ<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::MatrixBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&);
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// generated by autoexplicit.sh
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template bool igl::writeOBJ<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::MatrixBase<Eigen::Matrix<float, -1, 3, 1, -1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&);
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// generated by autoexplicit.sh
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template bool igl::writeOBJ<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::MatrixBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&);
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// generated by autoexplicit.sh
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template bool igl::writeOBJ<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::MatrixBase<Eigen::Matrix<double, 8, 3, 0, 8, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<int, 12, 3, 0, 12, 3> > const&);
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template bool igl::writeOBJ<Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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template bool igl::writeOBJ<Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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template bool igl::writeOBJ<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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template bool igl::writeOBJ<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, 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::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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template bool igl::writeOBJ<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::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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#endif
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