basegridgeometry.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-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef DUMUX_DISCRETIZATION_BASE_GRID_GEOMETRY_HH
#define DUMUX_DISCRETIZATION_BASE_GRID_GEOMETRY_HH
 
#include <memory>
#include <dune/common/std/type_traits.hh>
#include <dumux/common/indextraits.hh>
#include <dumux/discretization/basicgridgeometry.hh>
 
// make the local view function available whenever we use the grid geometry
#include <dumux/discretization/localview.hh>
 
namespace Dumux {
 
namespace Detail {
template<class T>
using SpecifiesBaseGridGeometry = typename T::BasicGridGeometry;
 
template<class T>
using SpecifiesGeometryHelper = typename T::GeometryHelper;
} // end namespace Detail
 
template<class GV, class T>
using BasicGridGeometry_t = Dune::Std::detected_or_t<
    Dumux::BasicGridGeometry<GV, typename T::ElementMapper, typename T::VertexMapper>,
    Detail::SpecifiesBaseGridGeometry,
    T
>;
 
template<class GV, class Traits>
class BaseGridGeometry
{
    using GridIndexType = typename IndexTraits<GV>::GridIndex;
    using Element = typename GV::template Codim<0>::Entity;
    using BaseImplementation = BasicGridGeometry_t<GV, Traits>;
public:
    using Grid = typename BaseImplementation::Grid;
    using GridView = typename BaseImplementation::GridView;
    using GlobalCoordinate = typename BaseImplementation::GlobalCoordinate;
    using ElementMapper = typename BaseImplementation::ElementMapper;
    using VertexMapper = typename BaseImplementation::VertexMapper;
 
    BaseGridGeometry(std::shared_ptr<BaseImplementation> impl)
    : impl_(std::move(impl))
    {}
 
    BaseGridGeometry(const GridView& gridView)
    : BaseGridGeometry(std::make_shared<BaseImplementation>(gridView))
    {}
 
    void update(const GridView& gridView)
    { impl_->update(gridView); }
 
    void update(GridView&& gridView)
    { impl_->update(std::move(gridView)); }
 
    const GridView& gridView() const
    { return impl_->gridView(); }
 
    const VertexMapper &vertexMapper() const
    { return impl_->vertexMapper(); }
 
    const ElementMapper &elementMapper() const
    { return impl_->elementMapper(); }
 
    VertexMapper &vertexMapper()
    { return impl_->vertexMapper(); }
 
    ElementMapper &elementMapper()
    { return impl_->elementMapper(); }
 
    decltype(auto) boundingBoxTree() const
    { return impl_->boundingBoxTree(); }
 
    decltype(auto) elementMap() const
    { return impl_->elementMap(); }
 
    Element element(GridIndexType eIdx) const
    { return impl_->element(eIdx); }
 
    const GlobalCoordinate &bBoxMin() const
    { return impl_->bBoxMin(); }
 
    const GlobalCoordinate &bBoxMax() const
    { return impl_->bBoxMax(); }
 
    bool isPeriodic() const
    { return periodic_; }
 
protected:
    void setPeriodic(bool value = true)
    { periodic_ = value; }
 
private:
    std::shared_ptr<BaseImplementation> impl_;
 
    bool periodic_ = false;
};
 
} // end namespace Dumux
 
#endif