/usr/include/dune/grid/alugrid/3d/geometry_imp.cc is in libdune-grid-dev 2.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define DUNE_ALUGRID_GEOMETRY_IMP_CC
#include <dune/geometry/genericgeometry/conversion.hh>
#include <dune/geometry/genericgeometry/topologytypes.hh>
#include "grid.hh"
#include "mappings.hh"
#include "geometry.hh"
namespace Dune {
// --Geometry
template <int mydim, int cdim, class GridImp>
inline ALU3dGridGeometry<mydim, cdim, GridImp> ::
ALU3dGridGeometry()
: geoImpl_(),
volume_(1.0)
{
}
template< int mydim, int cdim, class GridImp>
inline void
ALU3dGridGeometry< mydim, cdim, GridImp > :: invalidate ()
{
geoImpl_.invalidate();
}
template< int mydim, int cdim, class GridImp>
inline bool
ALU3dGridGeometry< mydim, cdim, GridImp > :: valid () const
{
return geoImpl_.valid();
}
template< int mydim, int cdim, class GridImp>
inline GeometryType
ALU3dGridGeometry< mydim, cdim, GridImp > :: type () const
{
return GeometryType( (elementType == tetra) ?
GenericGeometry :: SimplexTopology< mydim > :: type :: id :
GenericGeometry :: CubeTopology < mydim > :: type :: id,
mydim );
}
template< int mydim, int cdim, class GridImp>
inline int
ALU3dGridGeometry<mydim, cdim, GridImp >::corners() const
{
return corners_;
}
template< int mydim, int cdim, class GridImp>
inline const typename ALU3dGridGeometry<mydim, cdim, GridImp >::GlobalCoordinate&
ALU3dGridGeometry<mydim, cdim, GridImp >::
operator[] (int i) const
{
typedef GenericGeometry::MapNumberingProvider< mydim > Numbering;
const unsigned int tid = type().id();
const int j = Numbering::template dune2generic< mydim >( tid, i );
return geoImpl_[ j ];
}
template< int mydim, int cdim, class GridImp>
inline typename ALU3dGridGeometry<mydim, cdim, GridImp >::GlobalCoordinate
ALU3dGridGeometry<mydim, cdim, GridImp >::
corner (int i) const
{
return geoImpl_[ i ];
}
template< int mydim, int cdim, class GridImp>
inline typename ALU3dGridGeometry<mydim, cdim, GridImp >::GlobalCoordinate
ALU3dGridGeometry<mydim, cdim, GridImp >::
global (const LocalCoordinate& local) const
{
GlobalCoordinate global;
geoImpl_.mapping().map2world(local, global);
return global;
}
template< int mydim, int cdim, class GridImp >
inline typename ALU3dGridGeometry<mydim, cdim, GridImp >::LocalCoordinate
ALU3dGridGeometry<mydim, cdim, GridImp >::
local (const GlobalCoordinate& global) const
{
LocalCoordinate local;
geoImpl_.mapping().world2map(global, local);
return local;
}
template< int mydim, int cdim, class GridImp>
inline typename ALU3dGridGeometry<mydim, cdim, GridImp >::ctype
ALU3dGridGeometry<mydim, cdim, GridImp >::
integrationElement (const LocalCoordinate& local) const
{
// this is the only case we need to specialize
if( mydim == cdim && elementType == tetra )
{
assert( geoImpl_.valid() );
return 6.0 * volume_;
}
else
return geoImpl_.mapping().det( local );
}
template<int mydim, int cdim, class GridImp>
inline typename ALU3dGridGeometry<mydim, cdim, GridImp >::ctype
ALU3dGridGeometry<mydim, cdim, GridImp >::
volume () const
{
if( mydim == cdim )
{
assert( geoImpl_.valid() );
return volume_ ;
}
else if ( mydim == cdim - 1 && elementType == tetra )
{
enum { factor = Factorial<mydim>::factorial };
// local vector does not affect the result
const LocalCoordinate dummy(0);
return integrationElement( dummy ) / ((ctype) factor);
}
else
{
return integrationElement(LocalCoordinate(0.5));
}
}
template< int mydim, int cdim, class GridImp>
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
affine() const
{
return geoImpl_.mapping().affine();
}
template< int mydim, int cdim, class GridImp>
inline const typename ALU3dGridGeometry<mydim, cdim, GridImp >::Jacobian&
ALU3dGridGeometry<mydim, cdim, GridImp >::
jacobianInverseTransposed (const LocalCoordinate& local) const
{
return geoImpl_.mapping().jacobianInverseTransposed( local );
}
template< int mydim, int cdim, class GridImp>
inline const typename ALU3dGridGeometry<mydim, cdim, GridImp >::JacobianTransposed&
ALU3dGridGeometry<mydim, cdim, GridImp >::
jacobianTransposed (const LocalCoordinate& local) const
{
return geoImpl_.mapping().jacobianTransposed( local );
}
template <int mydim, int cdim, class GridImp>
inline void
ALU3dGridGeometry<mydim, cdim, GridImp >::
print (std::ostream& ss) const
{
const char* charElType = (elementType == tetra) ? "tetra" : "hexa";
ss << "ALU3dGridGeometry<" << mydim << "," << cdim << ", " << charElType << "> = {\n";
for(int i=0; i<corners(); i++)
{
ss << " corner " << i << " ";
ss << "{" << ((*this)[i]) << "}"; ss << std::endl;
}
ss << "} \n";
}
// built Geometry
template <int mydim, int cdim, class GridImp>
template <class GeometryType>
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeomInFather(const GeometryType &fatherGeom , const GeometryType & myGeom)
{
// update geo impl
geoImpl_.updateInFather( fatherGeom, myGeom );
// my volume is a part of 1 for hexas, for tetra adjust with factor
volume_ = myGeom.volume() / fatherGeom.volume();
if( elementType == tetra )
{
volume_ /= 6.0;
#ifndef NDEBUG
LocalCoordinate local( 0.0 );
assert( std::abs( 6.0 * volume_ - integrationElement( local ) ) < 1e-12 );
#endif
}
return true;
}
//--hexaBuildGeom
template <int mydim, int cdim, class GridImp>
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const IMPLElementType& item)
{
if ( elementType == hexa )
{
// if this assertion is thrown, use ElementTopo::dune2aluVertex instead
// of number when calling myvertex
assert( ElementTopo::dune2aluVertex(0) == 0 );
assert( ElementTopo::dune2aluVertex(1) == 1 );
assert( ElementTopo::dune2aluVertex(2) == 3 );
assert( ElementTopo::dune2aluVertex(3) == 2 );
assert( ElementTopo::dune2aluVertex(4) == 4 );
assert( ElementTopo::dune2aluVertex(5) == 5 );
assert( ElementTopo::dune2aluVertex(6) == 7 );
assert( ElementTopo::dune2aluVertex(7) == 6 );
// update geo impl
geoImpl_.update( item.myvertex(0)->Point(),
item.myvertex(1)->Point(),
item.myvertex(3)->Point(),
item.myvertex(2)->Point(),
item.myvertex(4)->Point(),
item.myvertex(5)->Point(),
item.myvertex(7)->Point(),
item.myvertex(6)->Point() );
}
else if( elementType == tetra )
{
// if this assertion is thrown, use ElementTopo::dune2aluVertex instead
// of number when calling myvertex
assert( ElementTopo::dune2aluVertex(0) == 0 );
assert( ElementTopo::dune2aluVertex(1) == 1 );
assert( ElementTopo::dune2aluVertex(2) == 2 );
assert( ElementTopo::dune2aluVertex(3) == 3 );
// update geo impl
geoImpl_.update( item.myvertex(0)->Point(),
item.myvertex(1)->Point(),
item.myvertex(2)->Point(),
item.myvertex(3)->Point() );
}
// get volume of element
volume_ = item.volume();
return true;
}
// buildFaceGeom
template <int mydim, int cdim, class GridImp>
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const HFaceType & item, int twist, int duneFace )
{
// get geo face
const GEOFaceType& face = static_cast<const GEOFaceType&> (item);
// if face was not set (when face comes from face iteration),
// then set it to zero
if( duneFace < 0 ) duneFace = 0;
enum { numVertices = ElementTopo::numVerticesPerFace };
// for all vertices of this face get rotatedIndex
int rotatedALUIndex[ numVertices ];
for (int i = 0; i < numVertices; ++i)
{
// Transform Dune index to ALU index and apply twist
const int localALUIndex = ElementTopo::dune2aluFaceVertex(duneFace,i);
rotatedALUIndex[ i ] = FaceTopo::twist(localALUIndex, twist);
}
if( elementType == hexa )
{
// update geometry implementation
geoImpl_.update( face.myvertex(rotatedALUIndex[0])->Point(),
face.myvertex(rotatedALUIndex[1])->Point(),
face.myvertex(rotatedALUIndex[2])->Point(),
face.myvertex(rotatedALUIndex[3])->Point() );
}
else if ( elementType == tetra )
{
// update geometry implementation
geoImpl_.update( face.myvertex(rotatedALUIndex[0])->Point(),
face.myvertex(rotatedALUIndex[1])->Point(),
face.myvertex(rotatedALUIndex[2])->Point());
}
return true;
}
// --buildFaceGeom
template <int mydim, int cdim, class GridImp>
template <class coord_t>
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const coord_t& p0,
const coord_t& p1,
const coord_t& p2,
const coord_t& p3)
{
// update geometry implementation
geoImpl_.update( p0, p1, p2, p3 );
return true;
}
// --buildFaceGeom
template <int mydim, int cdim, class GridImp>
template <class coord_t>
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const coord_t& p0,
const coord_t& p1,
const coord_t& p2)
{
// update geometry implementation
geoImpl_.update( p0, p1, p2 );
return true;
}
template <int mydim, int cdim, class GridImp> // for faces
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const FaceCoordinatesType& coords)
{
if ( elementType == hexa )
return buildGeom( coords[0], coords[1], coords[2], coords[3] );
else
{
assert( elementType == tetra );
return buildGeom( coords[0], coords[1], coords[2] );
}
}
template <int mydim, int cdim, class GridImp> // for edges
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const HEdgeType & item, int twist, int)
{
const GEOEdgeType & edge = static_cast<const GEOEdgeType &> (item);
// update geometry implementation
geoImpl_.update( edge.myvertex((twist) %2)->Point(),
edge.myvertex((1+twist)%2)->Point() );
return true;
}
template <int mydim, int cdim, class GridImp> // for Vertices ,i.e. Points
inline bool
ALU3dGridGeometry<mydim, cdim, GridImp >::
buildGeom(const VertexType & item, int twist, int)
{
// update geometry implementation
geoImpl_.update( static_cast<const GEOVertexType &> (item).Point() );
return true;
}
} // end namespace Dune
#endif // end DUNE_ALUGRID_GEOMETRY_IMP_CC
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