boundingboxgeometry.hh

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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
//
// SPDX-FileCopyrightText: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef DUMUX_GEOMETRY_BOUNDINGBOX_GEOMETRY_HH
#define DUMUX_GEOMETRY_BOUNDINGBOX_GEOMETRY_HH
 
#include <dune/common/fvector.hh>
#include <dune/geometry/type.hh>
 
#include <dumux/geometry/geometrytraits.hh>
 
namespace Dumux {

template<class ct, int dimworld>
class BoundingBoxGeometry
{
public:
    static constexpr int mydimension = dimworld;
    static constexpr int coorddimension = dimworld;
    using ctype = ct;
    using GlobalCoordinate = Dune::FieldVector<ct, dimworld>;
 
    BoundingBoxGeometry() = default;

    BoundingBoxGeometry(const GlobalCoordinate& lower, const GlobalCoordinate& upper)
    : lower_(lower), upper_(upper) {}

    int corners() const { return 1 << dimworld; }

    GlobalCoordinate corner(int i) const
    {
        GlobalCoordinate c;
        for (int d = 0; d < dimworld; ++d)
            c[d] = (i & (1 << d)) ? upper_[d] : lower_[d];
        return c;
    }

    Dune::GeometryType type() const { return Dune::GeometryTypes::cube(dimworld); }

    const GlobalCoordinate& lower() const { return lower_; }
    const GlobalCoordinate& upper() const { return upper_; }
 
private:
    GlobalCoordinate lower_, upper_;
};

template<class ct, int dimworld>
struct GeometryTraits<BoundingBoxGeometry<ct, dimworld>>
{ static constexpr bool axisAligned = true; };
 
} // end namespace Dumux
 
#endif