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68 lines
1.5 KiB
C++
68 lines
1.5 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 "readCSV.h"
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#include <sstream>
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#include <string>
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#include <fstream>
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#include <iostream>
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#include <vector>
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template <typename Scalar>
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IGL_INLINE bool igl::readCSV(
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const std::string str,
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Eigen::Matrix<Scalar,Eigen::Dynamic,Eigen::Dynamic>& M)
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{
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using namespace std;
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std::vector<std::vector<Scalar> > Mt;
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std::ifstream infile(str.c_str());
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std::string line;
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while (std::getline(infile, line))
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{
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std::istringstream iss(line);
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vector<Scalar> temp;
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Scalar a;
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while (iss >> a)
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temp.push_back(a);
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if (temp.size() != 0) // skip empty lines
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Mt.push_back(temp);
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}
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if (Mt.size() != 0)
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{
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// Verify that it is indeed a matrix
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for (unsigned i = 0; i<Mt.size(); ++i)
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{
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if (Mt[i].size() != Mt[0].size())
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{
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infile.close();
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return false;
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}
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}
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M.resize(Mt.size(),Mt[0].size());
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for (unsigned i = 0; i<Mt.size(); ++i)
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for (unsigned j = 0; j<Mt[i].size(); ++j)
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M(i,j) = Mt[i][j];
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// cerr << "TRUE!" << endl;
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return true;
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}
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infile.close();
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return false;
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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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#endif
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