/usr/include/dune/grid/alugrid/common/bndprojection.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_ALU_BNDPROJECTION_HH
#define DUNE_ALU_BNDPROJECTION_HH
namespace Dune {
//! \brief ALUGrid boundary projection implementation
//! DuneBndProjection has to fulfil the DuneBoundaryProjection interface
template <class GridImp, class ctype = double >
class ALUGridBoundaryProjection
#ifdef ALUGRID_VERTEX_PROJECTION
: public GridImp :: ALUGridVertexProjectionType
#endif
{
typedef GridImp GridType;
// type of double coordinate vector
typedef ctype coord_t[ GridType :: dimensionworld ];
protected:
//! reference to boundary projection implementation
const GridType& grid_;
public:
//! type of boundary projection
typedef typename GridType :: DuneBoundaryProjectionType DuneBoundaryProjectionType;
//! type of coordinate vector
typedef typename DuneBoundaryProjectionType :: CoordinateType CoordinateType;
//! constructor storing reference to boundary projection implementation
ALUGridBoundaryProjection(const GridType& grid)
: grid_( grid )
{}
//! (old) method projection vertices defaults to segment 0
int operator () (const coord_t &orig,
coord_t &prj) const
{
return this->operator()( orig, 0, prj);
}
//! projection operator
int operator () (const coord_t &orig,
const int segmentIndex,
coord_t &prj) const
{
#ifdef ALUGRID_VERTEX_PROJECTION
// get boundary projection
const DuneBoundaryProjectionType* bndPrj =
grid_.boundaryProjection( segmentIndex );
// if pointer is zero we do nothing, i.e. identity mapping
if( bndPrj )
{
// call projection operator
reinterpret_cast<CoordinateType &> (* (&prj[0])) =
(*bndPrj)( reinterpret_cast<const CoordinateType &> (* (&orig[0])) );
}
#endif
// return 1 for success
return 1;
}
};
} // end namespace Dune
#endif
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