/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2018-     Equinor ASA
//
//  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 "cvfMatrix4.h"

#include <vector>

class RivSectionFlattner
{
public:
    static size_t indexToNextValidPoint( const std::vector<cvf::Vec3d>& polyLine,
                                         const cvf::Vec3d               extrDir,
                                         size_t                         idxToStartOfLineSegment );

    static std::vector<cvf::Mat4d> calculateFlatteningCSsForPolyline( const std::vector<cvf::Vec3d>& polyLine,
                                                                      const cvf::Vec3d&              extrusionDir,
                                                                      const cvf::Vec3d&              startOffset,
                                                                      cvf::Vec3d*                    endOffset );

private:
    static cvf::Mat4d
        calculateSectionLocalFlatteningCS( const cvf::Vec3d& p1, const cvf::Vec3d& p2, const cvf::Vec3d& extrusionDir );
};