EGrid.hpp

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/*
   Copyright 2019 Equinor ASA.
 
   This file is part of the Open Porous Media project (OPM).
 
   OPM is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 
   OPM is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with OPM.  If not, see <http://www.gnu.org/licenses/>.
   */
 
#ifndef OPM_IO_EGRID_HPP
#define OPM_IO_EGRID_HPP
 
#include <opm/io/eclipse/EclFile.hpp>
#include <opm/common/utility/FileSystem.hpp>
 
#include <array>
#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <ctime>
#include <map>
 
namespace Opm { namespace EclIO {
 
class EGrid : public EclFile
{
public:
    explicit EGrid(const std::string& filename, std::string grid_name = "global");
 
    int global_index(int i, int j, int k) const;
    int active_index(int i, int j, int k) const;
 
    const std::array<int, 3>& dimension() const { return nijk; }
 
    std::array<int, 3> ijk_from_active_index(int actInd) const;
    std::array<int, 3> ijk_from_global_index(int globInd) const;
 
    void getCellCorners(int globindex, std::array<double,8>& X, std::array<double,8>& Y, std::array<double,8>& Z);
    void getCellCorners(const std::array<int, 3>& ijk, std::array<double,8>& X, std::array<double,8>& Y, std::array<double,8>& Z);
 
    int activeCells() const { return nactive; }
    int totalNumberOfCells() const { return nijk[0] * nijk[1] * nijk[2]; }
 
    void load_grid_data();
    void load_nnc_data();
    bool is_radial() const { return m_radial; }
 
    const std::vector<int>& hostCellsGlobalIndex() const { return host_cells; }
    std::vector<std::array<int, 3>> hostCellsIJK();
 
    // zero based: i1, j1,k1, i2,j2,k2, transmisibility
    using NNCentry = std::tuple<int, int, int, int, int, int, float>;
    std::vector<NNCentry> get_nnc_ijk();
 
    const std::vector<std::string>& list_of_lgrs() const { return lgr_names; }
 
private:
    Opm::filesystem::path inputFileName, initFileName;
    std::string m_grid_name;
    bool m_radial;
 
    std::array<int, 3> nijk;
    std::array<int, 3> host_nijk;
 
    int nactive;
    mutable bool m_nncs_loaded;
 
    std::vector<int> act_index;
    std::vector<int> glob_index;
 
    std::vector<float> coord_array;
    std::vector<float> zcorn_array;
 
    std::vector<int> nnc1_array;
    std::vector<int> nnc2_array;
    std::vector<float> transnnc_array;
    std::vector<int> host_cells;
 
    std::vector<std::string> lgr_names;
 
    int zcorn_array_index;
    int coord_array_index;
    int actnum_array_index;
    int nnc1_array_index;
    int nnc2_array_index;
};
 
}} // namespace Opm::EclIO
 
#endif // OPM_IO_EGRID_HPP