discretization/cellcentered/subcontrolvolume.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_DISCRETIZATION_CC_SUBCONTROLVOLUME_HH
#define DUMUX_DISCRETIZATION_CC_SUBCONTROLVOLUME_HH
 
#include <dumux/common/indextraits.hh>
 
namespace Dumux {

template<class GridView>
struct CCDefaultScvGeometryTraits
{
    using Geometry = typename GridView::template Codim<0>::Geometry;
    using GridIndexType = typename IndexTraits<GridView>::GridIndex;
    using LocalIndexType = typename IndexTraits<GridView>::LocalIndex;
    using Scalar = typename GridView::ctype;
    using Element = typename GridView::template Codim<0>::Entity;
    using GlobalPosition = typename Element::Geometry::GlobalCoordinate;
};

template<class GV,
         class T = CCDefaultScvGeometryTraits<GV> >
class CCSubControlVolume
{
    using ThisType = CCSubControlVolume<GV, T>;
    using GridIndexType = typename T::GridIndexType;
    using LocalIndexType = typename T::LocalIndexType;
    using Scalar = typename T::Scalar;
public:
    using GlobalPosition = typename T::GlobalPosition;
    using Traits = T;
 
    CCSubControlVolume() = default;
 
    template<class Geometry>
    CCSubControlVolume(Geometry&& geometry,
                       GridIndexType elementIndex)
    : volume_(geometry.volume())
    , center_(geometry.center())
    , elementIndex_(elementIndex)
    {}

    const GlobalPosition& center() const
    {
        return center_;
    }

    Scalar volume() const
    {
        return volume_;
    }

    GridIndexType dofIndex() const
    {
        return elementIndex();
    }

    LocalIndexType localDofIndex() const
    {
        return 0;
    }

    LocalIndexType indexInElement() const
    {
        return 0;
    }
 
    // The position of the dof this scv is embedded in
    const GlobalPosition& dofPosition() const
    {
        return center_;
    }

    GridIndexType elementIndex() const
    {
        return elementIndex_;
    }
 
private:
    Scalar volume_;
    GlobalPosition center_;
    GridIndexType elementIndex_;
};
 
} // end namespace Dumux
 
#endif