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92 lines
3.3 KiB
C++
92 lines
3.3 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 "writeDMAT.h"
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#include "list_to_matrix.h"
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#include <Eigen/Core>
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#include <cstdio>
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template <typename DerivedW>
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IGL_INLINE bool igl::writeDMAT(
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const std::string file_name,
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const Eigen::MatrixBase<DerivedW> & W,
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const bool ascii)
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{
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FILE * fp = fopen(file_name.c_str(),"wb");
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if(fp == NULL)
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{
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fprintf(stderr,"IOError: writeDMAT() could not open %s...",file_name.c_str());
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return false;
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}
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if(ascii)
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{
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// first line contains number of rows and number of columns
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fprintf(fp,"%d %d\n",(int)W.cols(),(int)W.rows());
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// Loop over columns slowly
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for(int j = 0;j < W.cols();j++)
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{
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// loop over rows (down columns) quickly
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for(int i = 0;i < W.rows();i++)
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{
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fprintf(fp,"%0.17lg\n",(double)W(i,j));
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}
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}
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}else
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{
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// write header for ascii
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fprintf(fp,"0 0\n");
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// first line contains number of rows and number of columns
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fprintf(fp,"%d %d\n",(int)W.cols(),(int)W.rows());
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// reader assumes the binary part is double precision
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Eigen::MatrixXd Wd = W.template cast<double>();
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fwrite(Wd.data(),sizeof(double),Wd.size(),fp);
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//// Loop over columns slowly
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//for(int j = 0;j < W.cols();j++)
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//{
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// // loop over rows (down columns) quickly
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// for(int i = 0;i < W.rows();i++)
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// {
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// double d = (double)W(i,j);
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// fwrite(&d,sizeof(double),1,fp);
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// }
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//}
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}
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fclose(fp);
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return true;
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}
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template <typename Scalar>
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IGL_INLINE bool igl::writeDMAT(
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const std::string file_name,
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const std::vector<std::vector<Scalar> > & W,
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const bool ascii)
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{
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Eigen::Matrix<Scalar,Eigen::Dynamic,Eigen::Dynamic> mW;
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list_to_matrix(W,mW);
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return igl::writeDMAT(file_name,mW,ascii);
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}
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template <typename Scalar>
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IGL_INLINE bool igl::writeDMAT(
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const std::string file_name,
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const std::vector<Scalar > & W,
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const bool ascii)
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{
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Eigen::Matrix<Scalar,Eigen::Dynamic,1> mW;
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list_to_matrix(W,mW);
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return igl::writeDMAT(file_name,mW,ascii);
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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template bool igl::writeDMAT<Eigen::Matrix<double, -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&, bool);
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template bool igl::writeDMAT<Eigen::Matrix<double, 1, 3, 1, 1, 3> >(std::string, Eigen::MatrixBase<Eigen::Matrix<double, 1, 3, 1, 1, 3> > const&, bool);
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template bool igl::writeDMAT<Eigen::Matrix<float, 1, 3, 1, 1, 3> >(std::string, Eigen::MatrixBase<Eigen::Matrix<float, 1, 3, 1, 1, 3> > const&, bool);
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template bool igl::writeDMAT<Eigen::Matrix<int, -1, -1, 0, -1, -1> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, bool);
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template bool igl::writeDMAT<Eigen::Matrix<int, -1, 2, 0, -1, 2> >(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::MatrixBase<Eigen::Matrix<int, -1, 2, 0, -1, 2> > const&, bool);
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#endif
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