/usr/include/dune/grid/alugrid/2d/iterator.hh is in libdune-grid-dev 2.4.1-1.
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// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_ALU2DGRID_ITERATOR_HH
#define DUNE_ALU2DGRID_ITERATOR_HH
// System includes
#include <stack>
#include <utility>
// Dune includes
#include <dune/grid/common/grid.hh>
#include <dune/grid/alugrid/common/intersectioniteratorwrapper.hh>
// Local includes
#include "entity.hh"
namespace Dune {
// Forward declarations
template<int cd, int dim, class GridImp>
class ALU2dGridEntity;
template<int cd, PartitionIteratorType pitype, class GridImp >
class ALU2dGridLevelIterator;
template<int cd, class GridImp >
class ALU2dGridEntityPointer;
template<int mydim, int coorddim, class GridImp>
class ALU2dGridGeometry;
template<class GridImp>
class ALU2dGridHierarchicIterator;
template<class GridImp>
class ALU2dGridIntersectionBase;
template<class GridImp>
class ALU2dGridLeafIntersectionIterator;
template<class GridImp>
class ALU2dGridLevelIntersectionIterator;
template<int codim, PartitionIteratorType pitype, class GridImp>
class ALU2dGridLeafIterator;
template< int dim, int dimworld, ALU2DSPACE ElementType eltype >
class ALU2dGrid;
//********************************************************************
// --ALU2dGridLeafIterator
// --LeafIterator
// --for codim = 0,2
//
//********************************************************************
template<int cdim, PartitionIteratorType pitype, class GridImp>
class ALU2dGridLeafIterator
: public ALU2dGridEntityPointer<cdim,GridImp>
// public LeafIteratorDefaultImplementation<cdim, pitype, GridImp, ALU2dGridLeafIterator>
{
static const int dim = GridImp::dimension;
static const int dimworld = GridImp::dimensionworld;
static const ALU2DSPACE ElementType eltype = GridImp::elementType;
static const int codim = cdim;
friend class ALU2dGridEntity<0,dimworld,GridImp>;
friend class ALU2dGridEntity<1,dimworld,GridImp>;
friend class ALU2dGridEntity<dim,dimworld,GridImp>;
friend class ALU2dGrid< dim, dimworld, eltype >;
typedef ALU2dGridEntityPointer<cdim,GridImp> EntityPointerType;
typedef ALU2dGridEntity<cdim,dim,GridImp> EntityImp;
typedef ALU2dGridLeafIterator<cdim, pitype, GridImp> ThisType;
typedef typename GridImp :: ALU2dGridLeafMarkerVectorType LeafMarkerVectorType;
// default impl for elements
template <class ElementImp, class MarkerVectorImp, int codim>
struct GetLevel
{
// return level of element
static int level(const ElementImp & elem, const MarkerVectorImp& marker)
{
return elem.level();
}
};
// specialization for vertices
template <class ElementImp, class MarkerVectorImp>
struct GetLevel<ElementImp,MarkerVectorImp,2>
{
// return level of leaf vertex
static int level(const ElementImp & elem, const MarkerVectorImp& marker)
{
return marker.levelOfVertex(elem.getIndex());
}
};
public:
typedef typename GridImp :: GridObjectFactoryType FactoryType;
//! type of entity we iterate (interface)
typedef typename GridImp::template Codim<cdim>::Entity Entity;
typedef typename Dune::ALU2dImplTraits< dimworld, eltype >::template Codim<cdim>::InterfaceType ElementType;
//! Constructor called by LeafIterator
ALU2dGridLeafIterator(const FactoryType& factory, bool end);
//! copy Constructor
ALU2dGridLeafIterator(const ThisType & org);
//! prefix increment
void increment ();
//! assigment of iterator
ThisType & operator = (const ThisType & org);
private:
//! true if iterator is end iterator
bool endIter_;
//! actual level
int level_;
ElementType * elem_;
typedef ALU2DSPACE Listwalkptr< ElementType > IteratorType;
// Listwalkptr, behaves like a proxy for Leafwalk and Levelwalk Ptrs
IteratorType iter_;
// for the codim 2 case
LeafMarkerVectorType & marker_;
}; // end ALU2dGridLeafIterator
//********************************************************************
// --ALU2dGridLeafIterator
// --LeafIterator
// --specialized for codim = 1
//
//********************************************************************
template<PartitionIteratorType pitype, class GridImp>
class ALU2dGridLeafIterator<1,pitype,GridImp>
: public ALU2dGridEntityPointer<1,GridImp>
// public LeafIteratorDefaultImplementation<1, pitype, GridImp, ALU2dGridLeafIterator>
{
static const int dim = GridImp::dimension;
static const int dimworld = GridImp::dimensionworld;
static const ALU2DSPACE ElementType eltype = GridImp::elementType;
static const int codim = 1;
friend class ALU2dGridEntity<0,dimworld,GridImp>;
friend class ALU2dGridEntity<1,dimworld,GridImp>;
friend class ALU2dGridEntity<dim,dimworld,GridImp>;
friend class ALU2dGrid< dim, dimworld, eltype >;
typedef ALU2dGridEntityPointer<1,GridImp> EntityPointerType;
typedef ALU2dGridEntity<1,dim,GridImp> EntityImp;
typedef ALU2dGridLeafIterator<1, pitype, GridImp> ThisType;
typedef typename GridImp :: ALU2dGridLeafMarkerVectorType LeafMarkerVectorType;
public:
typedef typename GridImp :: GridObjectFactoryType FactoryType;
//! type of entity we iterate (interface)
typedef typename GridImp::template Codim<1>::Entity Entity;
typedef typename Dune::ALU2dImplTraits< dimworld, eltype >::template Codim<1>::InterfaceType ElementType;
//! Constructor called by LeafIterator
ALU2dGridLeafIterator(const FactoryType& factory, bool end);
//! copy Constructor
ALU2dGridLeafIterator(const ThisType & org);
//! prefix increment
void increment ();
//! assigment of iterator
ThisType & operator = (const ThisType & org);
private:
int goNextElement();
//! true if iterator is end iterator
bool endIter_;
//! actual level
int level_;
//! information for edges
int face_;
//! pointer to element
ElementType * elem_;
typedef ALU2DSPACE Listwalkptr< ElementType > IteratorType;
// Listwalkptr, behaves like a proxy for Leafwalk and Levelwalk Ptrs
IteratorType iter_;
// for the codim 1 case
LeafMarkerVectorType & marker_;
}; // end ALU2dGridLeafIterator
//**********************************************************************
//
// --ALU2dGridLevelIterator
// --LevelIterator, specialized for cd=0
//**********************************************************************
template<PartitionIteratorType pitype, class GridImp>
class ALU2dGridLevelIterator<0, pitype, GridImp>
: public ALU2dGridEntityPointer<0,GridImp>
// public LevelIteratorDefaultImplementation <0, pitype, GridImp, ALU2dGridLevelIterator>
{
static const int dim = GridImp::dimension;
static const int dimworld = GridImp::dimensionworld;
static const ALU2DSPACE ElementType eltype = GridImp::elementType;
static const int codim = 0;
friend class ALU2dGridEntity<dim,dimworld,GridImp>;
friend class ALU2dGridEntity<1,dimworld,GridImp>;
friend class ALU2dGridEntity<0,dimworld,GridImp>;
friend class ALU2dGrid< dim, dimworld, eltype >;
typedef ALU2dGridEntityPointer<codim,GridImp> EntityPointerType;
typedef ALU2dGridEntity<codim,dim,GridImp> EntityImp;
typedef typename ALU2dImplTraits< dimworld, eltype >::HElementType HElementType;
typedef ALU2dGridLevelIterator<0,pitype,GridImp> ThisType;
public:
typedef typename GridImp :: GridObjectFactoryType FactoryType;
typedef typename GridImp::template Codim<codim>::Entity Entity;
//! Constructor
ALU2dGridLevelIterator(const FactoryType& factory, int level, bool end);
//! copy constructor
ALU2dGridLevelIterator(const ThisType & org);
//! prefix increment
void increment ();
//! do not allow assigment
ThisType & operator = (const ThisType & org);
private:
//! true if iterator is end iterator
bool endIter_;
//! actual level
int level_;
//! pointer to element
HElementType * item_;
//! type of entity we iterate (interface)
typedef typename Dune::ALU2dImplTraits< dimworld, eltype >::template Codim<0>::InterfaceType ElementType;
typedef ALU2DSPACE Listwalkptr< ElementType > IteratorType;
IteratorType iter_;
};
//**********************************************************************
//
// --ALU2dGridLevelIterator
// --LevelIterator, specialized for cd=1
//**********************************************************************
template<PartitionIteratorType pitype, class GridImp>
class ALU2dGridLevelIterator<1, pitype, GridImp>
: public ALU2dGridEntityPointer<1,GridImp>
// public LevelIteratorDefaultImplementation <1, pitype, GridImp, ALU2dGridLevelIterator>
{
static const int dim = GridImp::dimension;
static const int dimworld = GridImp::dimensionworld;
static const ALU2DSPACE ElementType eltype = GridImp::elementType;
static const int codim = 1;
friend class ALU2dGridEntity<dim,dimworld,GridImp>;
friend class ALU2dGridEntity<1,dimworld,GridImp>;
friend class ALU2dGridEntity<0,dimworld,GridImp>;
friend class ALU2dGrid< dim, dimworld, eltype >;
typedef ALU2dGridEntityPointer<codim,GridImp> EntityPointerType;
typedef ALU2dGridEntity<codim,dim,GridImp> EntityImp;
typedef typename ALU2dImplTraits< dimworld, eltype >::HElementType HElementType;
typedef ALU2dGridLevelIterator<1,pitype,GridImp> ThisType;
public:
typedef typename GridImp :: GridObjectFactoryType FactoryType;
typedef typename GridImp::template Codim<codim>::Entity Entity;
//! Constructor
ALU2dGridLevelIterator(const FactoryType& factroy, int level, bool end);
//! copy constructor
ALU2dGridLevelIterator(const ThisType & org);
~ALU2dGridLevelIterator();
//! prefix increment
void increment ();
//! assigment of iterator
ThisType & operator = (const ThisType & org);
private:
//! true if iterator is end iterator
bool endIter_;
//! actual level
int level_;
//! information for edges
int myFace_;
// current item
HElementType * item_;
//! type of entity we iterate (interface)
typedef typename Dune::ALU2dImplTraits< dimworld, eltype >::template Codim<1>::InterfaceType ElementType;
ElementType * elem_;
// Listwalkptr is a proxy for iterator pointers
typedef ALU2DSPACE Listwalkptr< ElementType > IteratorType;
IteratorType iter_;
ALU2dGridMarkerVector * marker_;
ALU2dGridMarkerVector & marker()
{
assert( marker_ );
return *marker_;
}
};
//**********************************************************************
//
// --ALU2dGridLevelIterator
// --LevelIterator, specialized for cd=2
//**********************************************************************
template<PartitionIteratorType pitype, class GridImp>
class ALU2dGridLevelIterator<2, pitype, GridImp>
: public ALU2dGridEntityPointer<2,GridImp>
// public LevelIteratorDefaultImplementation <2, pitype, GridImp, ALU2dGridLevelIterator>
{
static const int dim = GridImp::dimension;
static const int dimworld = GridImp::dimensionworld;
static const ALU2DSPACE ElementType eltype = GridImp::elementType;
static const int codim = 2;
friend class ALU2dGridEntity<dim,dimworld,GridImp>;
friend class ALU2dGridEntity<1,dimworld,GridImp>;
friend class ALU2dGridEntity<0,dimworld,GridImp>;
friend class ALU2dGrid< dim, dimworld, eltype >;
typedef ALU2dGridEntityPointer<codim,GridImp> EntityPointerType;
typedef ALU2dGridEntity<codim,dim,GridImp> EntityImp;
typedef typename ALU2dImplTraits< dimworld, eltype >::HElementType HElementType ;
typedef ALU2dGridLevelIterator<2,pitype,GridImp> ThisType;
public:
typedef typename GridImp :: GridObjectFactoryType FactoryType;
typedef typename GridImp::template Codim<codim>::Entity Entity;
//! Constructor
ALU2dGridLevelIterator(const FactoryType& factory, int level, bool end);
//! copy constructor
ALU2dGridLevelIterator(const ThisType & org);
~ALU2dGridLevelIterator();
//! prefix increment
void increment ();
//! assigment of iterator
ThisType & operator = (const ThisType & org);
private:
//! true if iterator is end iterator
bool endIter_;
//! actual level
int level_;
//! information for edges
int myFace_;
//! true if iterator is already a copy
//! type of entity we iterate (interface)
typedef typename Dune::ALU2dImplTraits< dimworld, eltype >::template Codim<0>::InterfaceType ElementType;
typedef typename Dune::ALU2dImplTraits< dimworld, eltype >::template Codim<2>::InterfaceType VertexType;
HElementType * item_;
VertexType * vertex_;
typedef ALU2DSPACE Listwalkptr< ElementType > IteratorType;
IteratorType iter_;
// marker vector to tell on which element vertex is visited
ALU2dGridMarkerVector * marker_;
ALU2dGridMarkerVector & marker()
{
assert( marker_ );
return *marker_;
}
};
//***************************************************************
//
// - HierarchicIteraror
// --HierarchicIterator
//***************************************************************
//! Hierarchic Iterator of ALU2dGrid
template<class GridImp>
class ALU2dGridHierarchicIterator
: public ALU2dGridEntityPointer<0,GridImp>
// public HierarchicIteratorDefaultImplementation <GridImp,ALU2dGridHierarchicIterator>
{
typedef ALU2dGridHierarchicIterator<GridImp> ThisType;
static const int dim = GridImp::dimension;
static const int dimworld = GridImp::dimensionworld;
static const ALU2DSPACE ElementType eltype = GridImp::elementType;
static const int codim = 2;
typedef typename ALU2dImplTraits< dimworld, eltype >::HElementType HElementType ;
public:
typedef typename GridImp :: GridObjectFactoryType FactoryType;
//! type of entities we iterate
typedef typename GridImp::template Codim<0>::Entity Entity;
//! type of coordinates, i.e. double
typedef typename GridImp::ctype ctype;
//! tpye of entity implementation
typedef ALU2dGridEntity<0,dim,GridImp> EntityImp;
//! the normal Constructor
ALU2dGridHierarchicIterator(const FactoryType& factory,
const HElementType & elem, int maxlevel, bool end=false);
//! the normal Constructor
ALU2dGridHierarchicIterator(const ALU2dGridHierarchicIterator<GridImp> &org);
//! increment, go to next entity
void increment();
//! the assignment operator
ThisType & operator = (const ALU2dGridHierarchicIterator<GridImp> &org)
{
ALU2dGridEntityPointer<0,GridImp> :: operator = (org);
elem_ = org.elem_;
maxlevel_= org.maxlevel_;
endIter_ = org.endIter_;
return *this;
}
private:
//! go to next valid element
HElementType * goNextElement (HElementType * oldEl);
//! element from where we started
const HElementType * elem_;
//! maximal level to go down
int maxlevel_;
//! true if iterator is end iterator
bool endIter_;
}; // end ALU2dHierarchicIterator
} // end namespace Dune
#include "iterator_imp.cc"
#endif // #ifndef DUNE_ALU2DGRID_ITERATOR_HH
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