added: EGrid class for reading GRID data from ECL files

examples/test_util/EGrid.hpp

@@ -0,0 +1,62 @@
+/*
+   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 EGRID_HPP
+#define EGRID_HPP
+
+#include "EclFile.hpp"
+
+#include <array>
+#include <iostream>
+#include <string>
+#include <fstream>
+#include <vector>
+#include <ctime>
+#include <map>
+
+
+class EGrid : public EclFile
+{
+public:
+    explicit EGrid(const std::string& filename);
+
+    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::vector<double>& X, std::vector<double>& Y, std::vector<double>& Z) const;
+    void getCellCorners(const std::array<int, 3>& ijk, std::vector<double>& X, std::vector<double>& Y, std::vector<double>& Z) const;
+
+    int activeCells() const { return nactive; }
+    int totalNumberOfCells() const { return nijk[0] * nijk[1] * nijk[2]; }
+
+private:
+    std::array<int, 3> nijk;
+    int nNNC, nactive;
+
+    std::vector<int> act_index;
+    std::vector<int> glob_index;
+    std::vector<float> coord_array;
+    std::vector<float> zcorn_array;
+};
+
+#endif