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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_ONE_D_GEOMETRY_HH
#define DUNE_ONE_D_GEOMETRY_HH
#include <dune/geometry/axisalignedcubegeometry.hh>
#include <dune/grid/common/geometry.hh>
#include <dune/grid/onedgrid/onedgridentity.hh>
/** \file
* \brief The OneDGridElement class and its specializations
*/
namespace Dune {
// forward declaration
template <int codim, int dim, class GridImp>
class OneDGridEntity;
/** \brief Unspecialized class. Not used for anything */
template<int mydim, int coorddim, class GridImp>
class OneDGridGeometry;
template<class GridImp>
class OneDGridGeometry <0, 1, GridImp> :
public GeometryDefaultImplementation <0, 1, GridImp,OneDGridGeometry>
{
template <int codim_, int dim_, class GridImp_>
friend class OneDGridEntity;
template <int mydim_, int coorddim_, class GridImp_>
friend class OneDGridGeometry;
public:
OneDGridGeometry() : storeCoordsLocally_(false) {}
//! return the element type identifier (vertex)
GeometryType type () const {return GeometryType(0);}
//! here we have always an affine geometry
bool affine() const { return true; }
//! return the number of corners of this element (==1)
int corners () const {return 1;}
/** \brief access to coordinates of a corner */
const FieldVector< typename GridImp::ctype, 1 > corner ( const int i ) const
{
return (storeCoordsLocally_ ? pos_ : target_->pos_);
}
/** \brief Maps a local coordinate within reference element to
* global coordinate in element */
FieldVector<typename GridImp::ctype, 1> global (const FieldVector<typename GridImp::ctype, 0>& local) const {
return (storeCoordsLocally_) ? pos_ : target_->pos_;
}
/** \brief Maps a global coordinate within the element to a
* local coordinate in its reference element */
FieldVector<typename GridImp::ctype, 0> local (const FieldVector<typename GridImp::ctype, 1>& global) const {
FieldVector<typename GridImp::ctype, 0> l;
return l;
}
/** \brief !!!
This method really doesn't make much sense for a zero-dimensional
object. It always returns '1'.
*/
typename GridImp::ctype integrationElement (const FieldVector<typename GridImp::ctype, 0>& local) const {
return 1;
}
//! The Jacobian matrix of the mapping from the reference element to this element
const FieldMatrix< typename GridImp::ctype, 0, 1 > &
jacobianTransposed ( const FieldVector< typename GridImp::ctype, 0 > &local ) const
{
return jacTransposed_;
}
//! The Jacobian matrix of the mapping from the reference element to this element
const FieldMatrix<typename GridImp::ctype,1,0>& jacobianInverseTransposed (const FieldVector<typename GridImp::ctype, 0>& local) const {
return jacInverse_;
}
void setPosition(const typename GridImp::ctype& p) {
storeCoordsLocally_ = true;
pos_[0] = p;
}
//private:
bool storeCoordsLocally_;
// Stores the element corner positions if it is returned as geometryInFather
FieldVector<typename GridImp::ctype,1> pos_;
OneDEntityImp<0>* target_;
FieldMatrix< typename GridImp::ctype, 0, 1 > jacTransposed_;
FieldMatrix<typename GridImp::ctype,1,0> jacInverse_;
};
//**********************************************************************
//
// --OneDGridGeometry
/** \brief Defines the geometry part of a mesh entity.
* \ingroup OneDGrid
*/
template<int mydim, int coorddim, class GridImp>
class OneDGridGeometry :
public AxisAlignedCubeGeometry<typename GridImp::ctype, mydim, coorddim>
{
public:
OneDGridGeometry(const FieldVector<double,1>& left, const FieldVector<double,1>& right)
: AxisAlignedCubeGeometry<typename GridImp::ctype, mydim, coorddim>(left,right)
{}
};
namespace FacadeOptions
{
/** \brief Switch on the new implementation for the Geometry interface class
* \deprecated Eventually the new implementation will be hardwired,
* and this switch may disappear without prior warning!
*/
template< int mydim, int cdim, class GridImp>
struct StoreGeometryReference<mydim,cdim,GridImp,OneDGridGeometry>
{
static const bool v = false;
};
}
} // namespace Dune
#endif
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