Dune::Mapper< G, MapperImp, IndexType > Class Template Reference

Mapper interface. More...

#include <dune/grid/common/mapper.hh>

Public Types
using	Index = IndexType
	Number type used for indices.

Public Member Functions
template<class EntityType >
Index	index (const EntityType &e) const
	Map entity to array index. More...
Index	subIndex (const typename G::Traits::template Codim< 0 >::Entity &e, int i, unsigned int codim) const
	Map subentity i of codim cc of a codim 0 entity to array index. More...
auto	size () const
	Return total number of entities in the entity set managed by the mapper. More...
template<class EntityType >
bool	contains (const EntityType &e, IndexType &result) const
	Returns true if the entity is contained in the index set and at the same time the array index is returned. More...
bool	contains (const typename G::Traits::template Codim< 0 >::Entity &e, int i, int cc, IndexType &result) const
	Returns true if the subentity is contained in the index set and at the same time the array index is returned. More...
template<class GridView >
void	update (GridView &&gridView)
	Reinitialize mapper after grid has been modified.

Detailed Description

template<typename G, typename MapperImp, typename IndexType = int>
class Dune::Mapper< G, MapperImp, IndexType >

Mapper interface.

This class template is used as a base class for all mapper implementations. It uses the Barton-Nackman trick to ensure conformity to the interface.

Template Parameters

G	Type that is a model of Dune::Grid
MapperImp	Type that is a model of Dune::Mapper
IndexType	Integer type used for indices. Default type is for backward-compatibility

Todo:

IndexType should be extracted from MapperImp, but gcc doesn't let me

Member Function Documentation

contains() [1/2]

template<typename G , typename MapperImp , typename IndexType = int>

template<class EntityType >

bool Dune::Mapper< G, MapperImp, IndexType >::contains ( const EntityType &  e, IndexType &  result  ) const

inline

Returns true if the entity is contained in the index set and at the same time the array index is returned.

Parameters

[in]	e	Reference to entity
[out]	result	Filled with array index if entity is contained

Returns

true if entity is in entity set of the mapper

Referenced by checkMixedDataMapper(), and checkVertexDataMapper().

contains() [2/2]

template<typename G , typename MapperImp , typename IndexType = int>

bool Dune::Mapper< G, MapperImp, IndexType >::contains ( const typename G::Traits::template Codim< 0 >::Entity &  e, int  i, int  cc, IndexType &  result  ) const

inline

Returns true if the subentity is contained in the index set and at the same time the array index is returned.

Parameters

[in]	e	Reference to codim 0 entity
[in]	i	subentity number
[in]	cc	subentity codim
[out]	result	Filled with array index if entity is contained

Returns

true if entity is in entity set of the mapper

index()

template<typename G , typename MapperImp , typename IndexType = int>

template<class EntityType >

Index Dune::Mapper< G, MapperImp, IndexType >::index ( const EntityType &  e ) const

inline

Map entity to array index.

\param e Reference to codim cc entity. The codim is extracted from the entity.
\return An index in the range 0 ... Max number of entities in set - 1.

Referenced by checkElementDataMapper(), and Dune::printGrid().

size()

template<typename G , typename MapperImp , typename IndexType = int>

auto Dune::Mapper< G, MapperImp, IndexType >::size ( ) const

inline

Return total number of entities in the entity set managed by the mapper.

This number can be used to allocate a vector of data elements associated with the entities of the set. In the parallel case this number is per process (i.e. it may be different in different processes).

Returns

Size of the entity set.

Referenced by checkMixedDataMapper(), and Dune::fillGridViewInfoSerial().

subIndex()

template<typename G , typename MapperImp , typename IndexType = int>

Index Dune::Mapper< G, MapperImp, IndexType >::subIndex ( const typename G::Traits::template Codim< 0 >::Entity &  e, int  i, unsigned int  codim  ) const

inline

Map subentity i of codim cc of a codim 0 entity to array index.

Parameters

e	Reference to codim 0 entity.
i	Number of codim cc subentity of e, where cc is the template parameter of the function.
codim	codimension of subentity of e

Returns

An index in the range 0 ... Max number of entities in set - 1.

Referenced by checkMixedDataMapper(), checkVertexDataMapper(), and Dune::printGrid().

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The documentation for this class was generated from the following file:

• dune/grid/common/mapper.hh