50 lines
3.6 KiB
C++
50 lines
3.6 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 "reorder.h"
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#include "SortableRow.h"
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#ifndef IGL_NO_EIGEN
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#include <Eigen/Core>
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#endif
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// This implementation is O(n), but also uses O(n) extra memory
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template< class T >
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IGL_INLINE void igl::reorder(
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const std::vector<T> & unordered,
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std::vector<size_t> const & index_map,
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std::vector<T> & ordered)
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{
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// copy for the reorder according to index_map, because unsorted may also be
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// sorted
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std::vector<T> copy = unordered;
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ordered.resize(index_map.size());
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for(int i = 0; i<(int)index_map.size();i++)
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{
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ordered[i] = copy[index_map[i]];
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}
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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 void igl::reorder<unsigned int>(std::vector<unsigned int, std::allocator<unsigned int> > const&, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned int, std::allocator<unsigned int> >&);
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// generated by autoexplicit.sh
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template void igl::reorder<float>(std::vector<float, std::allocator<float> > const&, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<float, std::allocator<float> >&);
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template void igl::reorder<double>(std::vector<double, std::allocator<double> > const&, std::vector<size_t, std::allocator<size_t> > const&, std::vector<double, std::allocator<double> >&);
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template void igl::reorder<int>(std::vector<int, std::allocator<int> > const&, std::vector<size_t, std::allocator<size_t> > const&, std::vector<int, std::allocator<int> >&);
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# ifndef IGL_NO_EIGEN
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template void igl::reorder<igl::SortableRow<Eigen::Matrix<int, -1, 1, 0, -1, 1> > >(std::vector<igl::SortableRow<Eigen::Matrix<int, -1, 1, 0, -1, 1> >, std::allocator<igl::SortableRow<Eigen::Matrix<int, -1, 1, 0, -1, 1> > > > const&, std::vector<size_t, std::allocator<size_t> > const&, std::vector<igl::SortableRow<Eigen::Matrix<int, -1, 1, 0, -1, 1> >, std::allocator<igl::SortableRow<Eigen::Matrix<int, -1, 1, 0, -1, 1> > > >&);
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template void igl::reorder<igl::SortableRow<Eigen::Matrix<double, -1, 1, 0, -1, 1> > >(std::vector<igl::SortableRow<Eigen::Matrix<double, -1, 1, 0, -1, 1> >, std::allocator<igl::SortableRow<Eigen::Matrix<double, -1, 1, 0, -1, 1> > > > const&, std::vector<size_t, std::allocator<size_t> > const&, std::vector<igl::SortableRow<Eigen::Matrix<double, -1, 1, 0, -1, 1> >, std::allocator<igl::SortableRow<Eigen::Matrix<double, -1, 1, 0, -1, 1> > > >&);
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# endif
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template void igl::reorder<long>(std::vector<long, std::allocator<long> > const&, std::vector<size_t, std::allocator<size_t> > const&, std::vector<long, std::allocator<long> >&);
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#ifdef WIN32
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template void igl::reorder<unsigned int>(class std::vector<unsigned int,class std::allocator<unsigned int> > const &,class std::vector<unsigned __int64,class std::allocator<unsigned __int64> > const &,class std::vector<unsigned int,class std::allocator<unsigned int> > &);
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template void igl::reorder<float>(class std::vector<float,class std::allocator<float> > const &,class std::vector<unsigned __int64,class std::allocator<unsigned __int64> > const &,class std::vector<float,class std::allocator<float> > &);
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template void igl::reorder<__int64>(class std::vector<__int64,class std::allocator<__int64> > const &,class std::vector<unsigned __int64,class std::allocator<unsigned __int64> > const &,class std::vector<__int64,class std::allocator<__int64> > &);
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#endif
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#endif
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