ElementCoordinatesMappingLocal.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <Eigen/Core>
#include <vector>
 
#include "MathLib/Point3d.h"
 
namespace MeshLib
{
    class Element;
}
 
namespace MeshLib
{
using RotationMatrix = Eigen::Matrix<double, 3u, 3u, Eigen::RowMajor>;

class ElementCoordinatesMappingLocal final
{
public:
    ElementCoordinatesMappingLocal(const Element &e, const unsigned global_dim);

    unsigned getGlobalDimension() const { return _global_dim; }

    MathLib::Point3d const& getMappedCoordinates(std::size_t node_id) const
    {
        return _points[node_id];
    }

    const RotationMatrix& getRotationMatrixToGlobal() const {return _matR2global;}
 
private:
    const unsigned _global_dim;
    std::vector<MathLib::Point3d> _points;
    RotationMatrix _matR2global;
};
 
}  // namespace MeshLib