/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2015-     Statoil ASA
//  Copyright (C) 2015-     Ceetron Solutions AS
// 
//  ResInsight 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.
// 
//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html> 
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

#include "cvfBase.h"
#include "cvfObject.h"
#include "cvfMath.h"
#include "cvfVector3.h"

#include <vector>

class RigMainGrid;
class RigFemPart;


//==================================================================================================
/// 
//==================================================================================================

class RigCaseToCaseCellMapperTools
{
public:

    static void estimatedFemCellFromEclCell(const RigMainGrid* eclGrid, size_t reservoirCellIndex, cvf::Vec3d estimatedElmCorners[8]);
    static void rotateCellTopologicallyToMatchBaseCell(const cvf::Vec3d * baseCell, bool baseCellFaceNormalsIsOutwards, cvf::Vec3d * cell);
    static cvf::Vec3d calculateCellCenter(cvf::Vec3d elmCorners[8]);
    static bool elementCorners(const RigFemPart* femPart, int elmIdx, cvf::Vec3d elmCorners[8]);
    static bool isEclFemCellsMatching(const cvf::Vec3d baseCell[8], cvf::Vec3d cell[8], double xyTolerance, double zTolerance);

private:
    static void rotateQuad(cvf::Vec3d quad[4], int idxToNewStart);
    static void flipQuadWinding(cvf::Vec3d quad[4]);
    static int  quadVxClosestToXYOfPoint(const cvf::Vec3d point, const cvf::Vec3d quad[4]);
    static int  findMatchingPOSKFaceIdx(const cvf::Vec3d baseCell[8], bool isBaseCellNormalsOutwards, const cvf::Vec3d c2[8]);
    
};