/usr/include/dune/grid/alugrid/2d/entity_imp.cc is in libdune-grid-dev 2.3.1-1.
This file is owned by root:root, with mode 0o644.
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// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_ALU2DGRIDENTITYIMP_CC
#define DUNE_ALU2DGRIDENTITYIMP_CC
#include "geometry.hh"
#include "grid.hh"
#include <dune/common/exceptions.hh>
#include <dune/grid/alugrid/common/geostorage.hh>
namespace Dune {
//**********************************************************************
//
// --ALU2dGridEntity
// --Entity
//
//**********************************************************************
//! level of this element
template<int cd, int dim, class GridImp>
inline int ALU2dGridEntity<cd, dim, GridImp> ::
level () const {
if (level_ == -1) {
if (cd != 2)
level_ = item_->level();
else
level_ = item_->level() + 1;
}
assert(level_ != -1);
return level_;
}
// forward declararion of struct ElementWrapper
template <int codim, int dim, class GridImp>
struct ElementWrapper;
template<int cd, int dim, class GridImp>
inline bool ALU2dGridEntity<cd, dim, GridImp> :: equals(const ALU2dGridEntity<cd, dim, GridImp> &org) const {
return ElementWrapper<cd,dim, GridImp>::isTheSame (*item_, face_, *org.item_, org.face_);
}
//! Constructor
template<int cd, int dim, class GridImp>
inline ALU2dGridEntity<cd, dim, GridImp> ::
ALU2dGridEntity(const FactoryType& factory, int level)
: factory_( factory ),
item_(0),
level_(level),
face_(-1)
{}
template<int cd, int dim, class GridImp>
inline void ALU2dGridEntity<cd,dim,GridImp>:: setElement(const ElementType &element, int face, int level) const {
item_= const_cast<ElementType *> (&element);
level_ = level;
face_ = face;
geoObj_.invalidate();
}
template<int cd, int dim, class GridImp>
inline void ALU2dGridEntity<cd,dim,GridImp>:: setElement( const EntitySeed& seed ) const
{
setElement( *(seed.item()), seed.face(), seed.level() );
}
//! set item pointer to NULL
template<int cd, int dim, class GridImp>
inline void ALU2dGridEntity<cd,dim,GridImp> :: removeElement() {
item_ = 0;
geoObj_.invalidate();
}
//! Copy Constructor
template<int cd, int dim, class GridImp>
inline ALU2dGridEntity<cd, dim, GridImp> ::
ALU2dGridEntity(const ALU2dGridEntity<cd,dim,GridImp> & org)
: factory_( org.factory_ ),
item_(org.item_),
level_(org.level_),
face_(org.face_)
{}
//! geometry of this entity
template< int cd, int dim, class GridImp >
inline typename ALU2dGridEntity< cd, dim, GridImp >::Geometry
ALU2dGridEntity< cd, dim, GridImp >::geometry () const
{
if( !geoObj_.valid() )
geoObj_.buildGeom( *item_,face_ );
assert( geoObj_.valid() );
return Geometry( geoObj_ );
}
//! geometry type of geometry of this entity
template<int cd, int dim, class GridImp>
inline GeometryType
ALU2dGridEntity<cd, dim, GridImp> :: type () const
{
return geoObj_.type();
}
template<int cd, int dim, class GridImp>
inline int ALU2dGridEntity<cd,dim,GridImp > :: getIndex() const
{
assert(item_ != 0);
return ElementWrapper<cd, dim, GridImp>::getElemIndex (grid(), *item_, face_);
}
/**
\brief Id of the boundary which is associated with
the entity, returns 0 for inner entities, arbitrary int otherwise
*/
template<int cd, int dim, class GridImp>
inline int ALU2dGridEntity<cd,dim,GridImp> :: boundaryId() const {
int isBoundary=0, i=0;
while(!isBoundary && i<dim) {
if (item_->nbbnd(i)!=0)
isBoundary = item_->nbbnd(i)->type();
++i;
}
return isBoundary;
}
//**********************************************************************
//
// --ALU2dGridEntity
// --0Entity
//
//**********************************************************************
//! Constructor creating empty Entity
template<int dim, class GridImp>
inline ALU2dGridEntity<0,dim,GridImp> ::
ALU2dGridEntity(const FactoryType& factory, int level)
: factory_( factory )
, item_(0)
, isLeaf_ (false)
{}
//! Copy Constructor
template<int dim, class GridImp>
inline ALU2dGridEntity<0, dim, GridImp> ::
ALU2dGridEntity(const ALU2dGridEntity<0,dim,GridImp> & org)
: factory_( org.factory_ ),
item_(org.item_),
isLeaf_(org.isLeaf_)
{}
//! level of this element
template<int dim, class GridImp>
inline int ALU2dGridEntity<0,dim,GridImp> :: level () const {
assert( item_ );
return (*item_).level();
}
//! geometry of this entity
template< int dim, class GridImp >
inline typename ALU2dGridEntity< 0, dim, GridImp >::Geometry
ALU2dGridEntity< 0, dim, GridImp >::geometry () const
{
assert( item_ != 0 );
if( !geoObj_.valid() )
geoObj_.buildGeom( *item_ );
assert( geoObj_.valid() );
return Geometry( geoObj_ );
}
//! geometry type of geometry of this entity
template<int dim, class GridImp>
inline GeometryType
ALU2dGridEntity<0, dim, GridImp> :: type () const
{
return geoObj_.type();
}
//! returns true if Entity is leaf (i.e. has no children)
template<int dim, class GridImp>
inline bool ALU2dGridEntity<0,dim,GridImp> :: isLeaf () const {
return isLeaf_;
}
//! Inter-level access to father element on coarser grid.
//! Assumes that meshes are nested.
template<int dim, class GridImp>
inline typename ALU2dGridEntity<0, dim, GridImp> :: EntityPointer ALU2dGridEntity<0,dim,GridImp> :: father () const {
// don't request for father on macro level
assert(level()>0);
return EntityPointer(factory_, *(item_->father()));
}
template<int dim, class GridImp>
inline int ALU2dGridEntity<0, dim, GridImp> :: nChild() const
{
assert( item_ );
return item_->childNr();
}
template< int dim, class GridImp >
inline typename ALU2dGridEntity< 0, dim, GridImp >::LocalGeometry
ALU2dGridEntity< 0, dim, GridImp >::geometryInFather () const
{
assert( level() > 0 );
const GeometryType myType = type();
// we need to storages in case of cube grid,
// one for quadrilaterals and one for triangles
if( (GridImp::elementType != ALU2DSPACE triangle) && myType.isCube() )
{
assert( grid().nonConform() );
typedef ALULocalGeometryStorage< GridImp, LocalGeometryImpl, 4 > GeometryStorage;
return LocalGeometry( GeometryStorage::geom( myType, true, nChild() ) );
}
else
{
if( grid().nonConform() )
{
typedef ALULocalGeometryStorage< GridImp, LocalGeometryImpl, 4 > GeometryStorage;
return LocalGeometry( GeometryStorage::geom( myType, true, nChild() ) );
}
else
{
typedef ALULocalGeometryStorage< GridImp, LocalGeometryImpl, 2 > GeometryStorage;
return LocalGeometry( GeometryStorage::geom( myType, false, nChild() ) );
}
}
}
template<int dim, class GridImp>
inline int ALU2dGridEntity<0,dim,GridImp> :: getIndex() const {
assert( item_ );
return (*item_).getIndex();
}
// forward declararion of struct ElementWrapper
//template <int codim, int dim, class GridImp>
// struct ElementWrapper;
template<int dim, class GridImp>
template<int cc>
inline int ALU2dGridEntity<0,dim,GridImp> :: getSubIndex(int i) const {
assert(item_ != 0);
return ElementWrapper<cc, dim, GridImp>::subIndex (grid(), *item_,i);
}
//! Provide access to mesh entity i of given codimension. Entities
//! are numbered 0 ... count<cc>()-1
template<int dim, class GridImp>
template <int cc>
inline typename ALU2dGridEntity<0,dim,GridImp > ::template Codim<cc> :: EntityPointer
ALU2dGridEntity<0,dim,GridImp> :: entity (int i) const {
assert(item_ != 0);
return ElementWrapper<cc,dim, GridImp>::subEntity (factory(), *item_, i);
}
template<int dim, class GridImp>
template <int cc>
inline int ALU2dGridEntity<0,dim,GridImp> :: subBoundaryId ( int i ) const {
assert(item_ != 0);
return ElementWrapper<cc, dim, GridImp>::subBoundary (grid(), *item_,i);
}
template<int dim, class GridImp>
inline int ALU2dGridEntity<0,dim,GridImp> :: subIndex(int i, unsigned int codim) const
{
assert( item_ != 0 );
int j = i;
switch( codim )
{
case 0 :
return ElementWrapper<0, dim, GridImp>::subIndex (grid(), *item_, j);
case 1 :
// also apply mapping to generic ref elem by switching edges
if( item_->numvertices() == 3 )
j = 2 - i;
else
switch (i) { case 0 : j=2;break;
case 1 : j=0;break;
case 2 : j=3;break;
case 3 : j=1;break;}
// j = ((i^2)>>1) | ((i&1)<<1);
return ElementWrapper<1, dim, GridImp>::subIndex (grid(), *item_, j);
case 2 :
if( item_->numvertices() == 4 )
switch (i) { case 0 : j=0;break;
case 1 : j=1;break;
case 2 : j=3;break;
case 3 : j=2;break;}
return ElementWrapper<2, dim, GridImp>::subIndex (grid(), *item_, j);
default :
assert( false );
abort();
}
return -1;
}
//***************************************************************
// Interface for Adaptation
//***************************************************************
//! marks an element for refCount refines. if refCount is negative the
//! element is coarsend -refCount times
//! mark returns true if element was marked, otherwise false
template<int dim, class GridImp>
inline bool ALU2dGridEntity<0,dim,GridImp> :: mark( int refCount ) const
{
if( !isLeaf() ) return false;
// if this assertion is thrown then you try to mark a non leaf entity
// which is leads to unpredictable results
assert(item_ != 0);
// mark for coarsening
if(refCount < 0)
{
if(level() <= 0) return false;
item_->ALU2DSPACE Refco_el::mark(ALU2DSPACE Refco::crs);
return true;
}
// mark for refinement
if(refCount > 0)
{
item_->ALU2DSPACE Refco_el::mark(ALU2DSPACE Refco::ref);
return true;
}
// mark with none
item_->ALU2DSPACE Refco_el::mark(ALU2DSPACE Refco::none);
return true;
}
template<int dim, class GridImp>
inline int ALU2dGridEntity<0,dim,GridImp> :: getMark() const
{
assert(item_ != 0);
if(item_->ALU2DSPACE Refco_el::is(ALU2DSPACE Refco::ref)) return 1;
if(item_->ALU2DSPACE Refco_el::is(ALU2DSPACE Refco::crs)) return -1;
assert( item_->ALU2DSPACE Refco_el::is(ALU2DSPACE Refco::none) );
return 0;
}
/*! private methods, but public because of datahandle and template
arguments of these methods
*/
template<int dim, class GridImp>
inline void ALU2dGridEntity<0,dim,GridImp> ::
setElement(const HElementType &element, int face, int level) const
{
item_= const_cast<HElementType *> (&element);
isLeaf_ = ((*item_).down() == 0);
geoObj_.invalidate();
}
template<int dim, class GridImp>
inline void ALU2dGridEntity<0,dim,GridImp> ::
setElement(const EntitySeed& seed ) const
{
setElement( *(seed.item()) ); //, seed.face(), seed.level() );
}
//! set actual walk level
template<int dim, class GridImp>
inline void ALU2dGridEntity<0,dim,GridImp> :: reset ( int l )
{
item_ = 0;
isLeaf_ = false;
geoObj_.invalidate();
}
//! set item pointer to NULL
template<int dim, class GridImp>
inline void ALU2dGridEntity<0,dim,GridImp> :: removeElement() {
item_ = 0;
geoObj_.invalidate();
}
//! compare 2 entities, which means compare the item pointers
template<int dim, class GridImp>
inline bool ALU2dGridEntity<0,dim,GridImp> :: equals ( const ALU2dGridEntity<0,dim,GridImp> & org ) const {
return (item_ == org.item_);
}
//**********************************************************************
//
// --EntityPointer
// --EnPointer
//
//**********************************************************************
//! has to be called when iterator is finished
template<int cd, class GridImp>
inline void ALU2dGridEntityPointer<cd, GridImp> :: done()
{
// sets entity pointer in the status of an empty entity
if(entity_)
{
entityImp().removeElement();
factory_.template freeEntity< cd > ( entity_ );
entity_ = 0;
}
seed_.clear();
}
template<int cd, class GridImp>
inline bool ALU2dGridEntityPointer<cd, GridImp> :: equals(const ALU2dGridEntityPointer<cd, GridImp> & i) const
{
return seed_ == i.seed_;
}
//! update underlying item pointer and set entity
template<int cd, class GridImp>
inline void ALU2dGridEntityPointer<cd, GridImp> :: updateEntityPointer(ElementType * item, int face, int level)
{
assert(item != 0);
seed_.set( *item, level, face );
if( entity_ )
{
entityImp().setElement( seed_ );
}
}
//! Constructor for EntityPointer that points to an element
template<int cd, class GridImp>
inline ALU2dGridEntityPointer<cd, GridImp>::
ALU2dGridEntityPointer(const FactoryType& factory,
const ElementType& item, int face, int level)
: factory_( factory )
, seed_( item, level, face )
, entity_(0)
{ }
//! Constructor for EntityPointer that points to an element
template<int cd, class GridImp>
inline ALU2dGridEntityPointer<cd, GridImp>::
ALU2dGridEntityPointer(const EntityImp& entity)
: factory_( entity.factory() )
, seed_( entity.getItem(), entity.level(), entity.getFace() )
, entity_(0)
{ }
//! Constructor for EntityPointer that points to an element
template<int cd, class GridImp>
inline ALU2dGridEntityPointer<cd, GridImp>::
ALU2dGridEntityPointer(const FactoryType& factory, const EntitySeed& seed)
: factory_( factory )
, seed_( seed )
, entity_(0)
{ }
//! Constructor for EntityPointer init of Level- and LeafIterator
template<int cd, class GridImp>
inline ALU2dGridEntityPointer<cd, GridImp>:: ALU2dGridEntityPointer(const FactoryType& factory)
: factory_( factory )
, seed_()
, entity_(0)
{ }
//! Copy Constructor
template<int cd, class GridImp>
inline ALU2dGridEntityPointer<cd, GridImp>:: ALU2dGridEntityPointer(const ThisType & org)
: factory_( org.factory_ )
, seed_( org.seed_ )
, entity_(0)
{ }
//! Destructor
template<int cd, class GridImp>
inline ALU2dGridEntityPointer<cd, GridImp>::~ALU2dGridEntityPointer()
{
this->done();
}
//! dereferencing
template<int cd, class GridImp>
inline typename ALU2dGridEntityPointer<cd, GridImp>::Entity &
ALU2dGridEntityPointer<cd, GridImp>:: dereference() const
{
if( ! entity_ )
{
entity_ = factory_.template getNewEntity<cd> (level());
entityImp().setElement( seed_ );
}
assert( entity_ );
return *entity_;
}
//! ask for level of entities
template<int cd, class GridImp>
inline int ALU2dGridEntityPointer<cd, GridImp>:: level () const
{
assert( seed_.level() >= 0 );
return seed_.level();
}
template<int cd, class GridImp>
inline typename ALU2dGridEntityPointer<cd, GridImp>:: ThisType &
ALU2dGridEntityPointer<cd, GridImp>:: operator = (const typename ALU2dGridEntityPointer<cd, GridImp>::ThisType & org)
{
this->done();
assert(&factory_ == &org.factory_);
seed_ = org.seed_; // copy seed
entity_ = 0; // is set when dereference is called
return *this;
}
template<int cd, class GridImp>
inline typename ALU2dGridEntityPointer<cd, GridImp>::EntityImp & ALU2dGridEntityPointer<cd, GridImp>::entityImp()
{
assert( entity_ );
return GridImp :: getRealImplementation(*entity_);
}
template<int cd, class GridImp>
inline const typename ALU2dGridEntityPointer<cd, GridImp>:: EntityImp &
ALU2dGridEntityPointer<cd, GridImp>::entityImp() const {
assert( entity_ );
return GridImp :: getRealImplementation(*entity_);
}
//********* begin struct ElementWrapper ********************
//template <int codim, int dim, class GridImp>
//struct ElementWrapper;
// partial specialisation for codim
//
//--ElementWrapper
//**********************************************************
// specialisation for elements
template<int dim, class GridImp>
struct ElementWrapper<0,dim, GridImp>
{
typedef typename ALU2dImplTraits< GridImp::dimensionworld, GridImp::elementType >::HElementType HElementType ;
typedef typename GridImp :: GridObjectFactoryType FactoryType;
static inline int getElemIndex(GridImp & grid, const HElementType &elem, int i) {
//assert(!i);
return elem.getIndex();
}
static inline int subIndex(GridImp & grid, const HElementType &elem, int i) {
//assert(!i);
return elem.getIndex();
}
static inline typename ALU2dGridEntity<0,dim,GridImp > :: template Codim<0>:: EntityPointer
subEntity(const FactoryType& factory, const HElementType &elem, int i) {
//assert(!i);
return ALU2dGridEntityPointer<0, GridImp > (factory, elem, -1, elem.level());
}
static inline int subBoundary(GridImp & grid, const HElementType &elem, int i) {
//assert(!i);
return elem.nbbnd(i)->type();
}
static inline bool isTheSame(const HElementType * elem, int face, const HElementType * org, int org_face) {
return (elem == org);
}
};
// specialisation for edges
template<int dim, class GridImp>
struct ElementWrapper<1, dim, GridImp>{
typedef typename ALU2dImplTraits< GridImp::dimensionworld, GridImp::elementType >::HElementType HElementType ;
typedef typename GridImp :: GridObjectFactoryType FactoryType;
static inline int getElemIndex(GridImp & grid, const HElementType &elem, int i)
{
assert(i < elem.numvertices() && i >= 0);
return elem.edge_idx(i);
}
static inline int subIndex(GridImp & grid, const HElementType &elem, int i)
{
assert(i < elem.numvertices() && i >= 0);
return elem.edge_idx(i);
}
static inline typename ALU2dGridEntity<0,dim,GridImp > :: template Codim<1>:: EntityPointer
subEntity(const FactoryType& factory, const HElementType &elem, int i)
{
assert(i < elem.numvertices() && i >= 0);
return ALU2dGridEntityPointer<1, GridImp > (factory, elem, i, elem.level());
}
static inline int subBoundary(GridImp & grid, const HElementType &elem, int i) {
DUNE_THROW(NotImplemented, "Not yet implemented for this codim!");
return -1;
}
static inline bool isTheSame(const HElementType * elem, int face, const HElementType * org, int org_face)
{
if (elem == org)
{
if (face == org_face)
return true;
else
return false;
}
else {
if (elem != 0 && org != 0)
return (elem->edge_idx(face) == org->edge_idx(org_face));
}
return false;
}
};
// specialisation for vertices
template<int dim, class GridImp>
struct ElementWrapper<2, dim, GridImp>{
typedef typename ALU2dImplTraits< GridImp::dimensionworld, GridImp::elementType >::HElementType HElementType ;
typedef typename ALU2dImplInterface< 0, GridImp::dimensionworld, GridImp::elementType >::Type VertexType;
typedef typename GridImp :: GridObjectFactoryType FactoryType;
static inline int getElemIndex(GridImp & grid, const VertexType &elem, int) {
return elem.getIndex();
}
static inline int subIndex(GridImp & grid, const HElementType &elem, int i) {
assert(i < elem.numvertices() && i >= 0);
//return elem.vertex(i)->getIndex();
return elem.getVertex(i)->getIndex();
}
static inline typename ALU2dGridEntity<0,dim,GridImp > :: template Codim<2>:: EntityPointer
subEntity(const FactoryType& factory, const HElementType &elem, int i)
{
assert(i < elem.numvertices() && i >= 0);
//return ALU2dGridEntityPointer<2, GridImp > (grid, *(elem.vertex(i)), -1, elem.level());
return ALU2dGridEntityPointer<2, GridImp > (factory, *(elem.getVertex(i)), -1, elem.level());
}
static inline int subBoundary(GridImp & grid, const HElementType &elem, int i) {
DUNE_THROW(NotImplemented, "Not yet implemented this codim!");
return -1;
}
static inline bool isTheSame(const VertexType * elem, int face, const VertexType * org, int org_face) {
return (elem == org);
}
};
//********* end struct ElementWrapper ********************
} //end namespace Dune
#endif
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