/usr/include/dune/grid-glue/common/simplexgeometry.hh is in libdune-grid-glue-dev 2.4.0-1build1.
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/**
* @file
* @author Christian Engwer
* @author Oliver Sander
* @author Gerrit Buse
* @brief contains customized geometry implementations for simplices
* \deprecated For use with Dune 2.2 and older.
*/
#ifndef DUNE_GRIDGLUE_COMMON_SIMPLEXGEOMETRY_HH
#define DUNE_GRIDGLUE_COMMON_SIMPLEXGEOMETRY_HH
#include <memory>
#include <dune/geometry/genericgeometry/geometry.hh>
#include <dune/geometry/genericgeometry/geometrytraits.hh>
#include <dune/geometry/genericgeometry/cornermapping.hh>
#include <dune/geometry/genericgeometry/topologytypes.hh>
namespace Dune {
namespace GridGlue {
/**
* @brief Geometry traits for simplices passed to GenericGeometry::BasicGeometry
*
* This geometry traits class configures BasicGeometry to use only affine mappings
* for simplicial (i.e. especially non-hybrid) grid structures.
*/
template<class ctype, int dim, int dimworld>
struct SimplexGeometryTraits
: public Dune::GenericGeometry::DefaultGeometryTraits<ctype, dim, dimworld, true>
{
typedef typename Dune::GenericGeometry::DefaultGeometryTraits<ctype, dim, dimworld, true> Base;
// This traits class represents a single type only ...
static const bool hybrid = false;
// ... and this type is 'simplex'.
static const unsigned int topologyId = Dune::GenericGeometry::SimplexTopology< dim >::type::id;
template<class Topology>
struct Mapping
{
typedef Dune::GenericGeometry::CoordStorage<typename Base::CoordTraits, Topology, Base::dimWorld> CornerStorage;
typedef Dune::GenericGeometry::CornerMapping<typename Base::CoordTraits, Topology, Base::dimWorld, CornerStorage, true> type;
};
};
/**
* @class SimplexGeometry
* @brief This class is derived from BasicGeometry using tuned geometry traits.
*
* The used geometry traits allow for a more efficient compilation of the default
* implementation of CornerMapping. Using only affine mappings it is specialized
* for the case of exclusively simplicial geometries.
*/
template<class ctype, int mydim, int coorddim>
class SimplexGeometry : public Dune::GenericGeometry::BasicGeometry<mydim, SimplexGeometryTraits<ctype, mydim, coorddim> >
{
typedef Dune::GenericGeometry::BasicGeometry<mydim, SimplexGeometryTraits<ctype, mydim, coorddim> > Base;
enum { simplex_corners = mydim+1 };
public:
typedef typename Base::Mapping Mapping;
template< class CoordVector>
SimplexGeometry(const Dune::GeometryType &type, const CoordVector &coords) : Base(type, coords)
{}
SimplexGeometry()
{}
/**
* @brief Setup method with a geometry type and a set of corners
* @param type the geometry type of this subface, i.e. most likely a simplex in 1D or 2D
* @param coordinates The corner coordinates in DUNE numbering
*/
void setup(const Dune::GeometryType& type, const std::array<Dune::FieldVector<ctype, coorddim>, simplex_corners>& coordinates)
{
// Yes, a strange way, but the only way, as BasicGeometry doesn't have a setup method
Base::operator=(Base(type, coordinates));
}
};
} // end namespace GridGlue
} // end namespace Dune
#endif // DUNE_GRIDGLUE_COMMON_SIMPLEXGEOMETRY_HH
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