/usr/include/dune/grid/geometrygrid/cornerstorage.hh is in libdune-grid-dev 2.3.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_GEOGRID_CORNERSTORAGE_HH
#define DUNE_GEOGRID_CORNERSTORAGE_HH
#include <dune/common/array.hh>
#include <dune/grid/geometrygrid/coordfunctioncaller.hh>
namespace Dune
{
namespace GeoGrid
{
// CoordVector
// -----------
template< int mydim, class Grid, bool fake >
class CoordVector;
template< int mydim, class Grid >
class CoordVector< mydim, Grid, false >
{
typedef typename remove_const< Grid >::type::Traits Traits;
typedef typename Traits::ctype ctype;
static const int dimension = Traits::dimension;
static const int mydimension = mydim;
static const int codimension = dimension - mydimension;
static const int dimensionworld = Traits::dimensionworld;
typedef FieldVector< ctype, dimensionworld > Coordinate;
typedef typename Traits::HostGrid HostGrid;
typedef typename Traits::CoordFunction CoordFunction;
typedef typename HostGrid::template Codim< codimension >::Entity HostEntity;
typedef GeoGrid :: CoordFunctionCaller< HostEntity, typename CoordFunction::Interface >
CoordFunctionCaller;
public:
CoordVector ( const HostEntity &hostEntity,
const CoordFunction &coordFunction )
: coordFunctionCaller_( hostEntity, coordFunction )
{}
template< std::size_t size >
void calculate ( array< Coordinate, size > (&corners) ) const
{
const std::size_t numCorners = coordFunctionCaller_.size();
assert( size >= numCorners );
for( std::size_t i = 0; i < numCorners; ++i )
coordFunctionCaller_.evaluate( i, corners[ i ] );
}
private:
const CoordFunctionCaller coordFunctionCaller_;
};
template< int mydim, class Grid >
class CoordVector< mydim, Grid, true >
{
typedef typename remove_const< Grid > :: type :: Traits Traits;
typedef typename Traits::ctype ctype;
static const int dimension = Traits::dimension;
static const int mydimension = mydim;
static const int codimension = dimension - mydimension;
static const int dimensionworld = Traits::dimensionworld;
typedef FieldVector< ctype, dimensionworld > Coordinate;
typedef typename Traits::HostGrid HostGrid;
typedef typename Traits::CoordFunction CoordFunction;
typedef typename HostGrid::template Codim< 0 >::Entity HostElement;
typedef GeoGrid::CoordFunctionCaller< HostElement, typename CoordFunction::Interface >
CoordFunctionCaller;
public:
CoordVector ( const HostElement &hostElement,
const unsigned int subEntity,
const CoordFunction &coordFunction )
: coordFunctionCaller_( hostElement, coordFunction ),
subEntity_( subEntity )
{}
template< std::size_t size >
void calculate ( array< Coordinate, size > (&corners) ) const
{
const GeometryType type = coordFunctionCaller_.type();
const ReferenceElement< ctype, dimension > &refElement
= ReferenceElements< ctype, dimension >::general( type );
const std::size_t numCorners = refElement.size( subEntity_, codimension, dimension );
assert( size >= numCorners );
for( std::size_t i = 0; i < numCorners; ++i )
{
const std::size_t j = refElement.subEntity( subEntity_, codimension, i, dimension );
coordFunctionCaller_.evaluate( j, corners[ i ] );
}
}
private:
const CoordFunctionCaller coordFunctionCaller_;
const unsigned int subEntity_;
};
// IntersectionCoordVector
// -----------------------
template< class Grid >
class IntersectionCoordVector
{
typedef typename remove_const< Grid >::type::Traits Traits;
typedef typename Traits::ctype ctype;
static const int dimension = Traits::dimension;
static const int codimension = 1;
static const int mydimension = dimension-codimension;
static const int dimensionworld = Traits::dimensionworld;
typedef FieldVector< ctype, dimensionworld > Coordinate;
typedef typename Traits::HostGrid HostGrid;
typedef typename Traits::template Codim< 0 >::GeometryImpl ElementGeometryImpl;
typedef typename Traits::template Codim< codimension >::LocalGeometry HostLocalGeometry;
public:
IntersectionCoordVector ( const ElementGeometryImpl &elementGeometry,
const HostLocalGeometry &hostLocalGeometry )
: elementGeometry_( elementGeometry ),
hostLocalGeometry_( hostLocalGeometry )
{}
template< std::size_t size >
void calculate ( array< Coordinate, size > (&corners) ) const
{
const std::size_t numCorners = hostLocalGeometry_.corners();
assert( size >= numCorners );
for( std::size_t i = 0; i < numCorners; ++i )
corners[ i ] = elementGeometry_.global( hostLocalGeometry_.corner( i ) );
}
template< unsigned int numCorners >
void calculate ( Coordinate (&corners)[ numCorners ] ) const
{
assert( numCorners == hostLocalGeometry_.corners() );
}
private:
const ElementGeometryImpl &elementGeometry_;
HostLocalGeometry hostLocalGeometry_;
};
// CornerStorage
// -------------
template< int mydim, int cdim, class Grid >
class CornerStorage
{
typedef typename remove_const< Grid >::type::Traits Traits;
typedef typename Traits::ctype ctype;
typedef FieldVector< ctype, cdim > Coordinate;
typedef array< Coordinate, (1 << mydim) > Coords;
public:
typedef typename Coords::const_iterator const_iterator;
template< bool fake >
explicit CornerStorage ( const CoordVector< mydim, Grid, fake > &coords )
{
coords.calculate( coords_ );
}
explicit CornerStorage ( const IntersectionCoordVector< Grid > &coords )
{
coords.calculate( coords_ );
}
const Coordinate &operator[] ( unsigned int i ) const
{
return coords_[ i ];
}
const_iterator begin () const { return coords_.begin(); }
const_iterator end () const { return coords_.end(); }
private:
Coords coords_;
};
} // namespace GeoGrid
} // namespace Dune
#endif // #ifndef DUNE_GEOGRID_CORNERSTORAGE_HH
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