74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
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// 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 "writeTGF.h"
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#include <cstdio>
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IGL_INLINE bool igl::writeTGF(
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const std::string tgf_filename,
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const std::vector<std::vector<double> > & C,
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const std::vector<std::vector<int> > & E)
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{
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FILE * tgf_file = fopen(tgf_filename.c_str(),"w");
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if(NULL==tgf_file)
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{
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printf("IOError: %s could not be opened\n",tgf_filename.c_str());
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return false;
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}
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// Loop over vertices
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for(int i = 0; i<(int)C.size();i++)
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{
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assert(C[i].size() == 3);
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// print a line with vertex number then "description"
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// Where "description" in our case is the 3d position in space
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//
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fprintf(tgf_file,
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"%4d "
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"%10.17g %10.17g %10.17g " // current location
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// All others are not needed for this legacy support
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"\n",
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i+1,
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C[i][0], C[i][1], C[i][2]);
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}
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// print a comment to separate vertices and edges
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fprintf(tgf_file,"#\n");
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// loop over edges
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for(int i = 0;i<(int)E.size();i++)
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{
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assert(E[i].size()==2);
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fprintf(tgf_file,"%4d %4d\n",
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E[i][0]+1,
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E[i][1]+1);
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}
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// print a comment to separate edges and faces
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fprintf(tgf_file,"#\n");
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fclose(tgf_file);
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return true;
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}
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#ifndef IGL_NO_EIGEN
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#include "matrix_to_list.h"
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IGL_INLINE bool igl::writeTGF(
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const std::string tgf_filename,
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const Eigen::MatrixXd & C,
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const Eigen::MatrixXi & E)
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{
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using namespace std;
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vector<vector<double> > vC;
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vector<vector<int> > vE;
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matrix_to_list(C,vC);
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matrix_to_list(E,vE);
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return writeTGF(tgf_filename,vC,vE);
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}
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#endif
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