49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/*
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Copyright 2015 SINTEF ICT, Applied Mathematics.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <opm/core/utility/compressedToCartesian.hpp>
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#include <numeric>
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namespace Opm
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{
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// Construct explicit mapping from active/compressed to logical cartesian
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// indices, either as given in global_cell or as { 0, 1, 2, ....} if null.
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// \param[in] num_cells The number of active cells.
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// \param[in] global_cell Either null, or an array of size num_cells.
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// \return A vector containing the same data as global_cell,
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// or the sequence { 0, 1, ... , num_cells - 1 } if
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// global_cell was null.
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std::vector<int> compressedToCartesian(const int num_cells,
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const int* global_cell)
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{
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std::vector<int> retval;
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if (global_cell) {
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retval.assign(global_cell, global_cell + num_cells);
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} else {
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retval.resize(num_cells);
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std::iota(retval.begin(), retval.end(), 0);
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}
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return retval;
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}
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} // namespace Opm
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