Dune::PDELab::ElementMapper< GV > Class Template Reference

Class providing a consecutive index for codim 0 entities of a GridView. More...

#include <dune/pdelab/common/elementmapper.hh>

Public Types
typedef BaseT::size_type	size_type
	The type of the returned index.
typedef BaseT::Element	Element
	The type of the codim 0 entities of the GridView.

Public Member Functions
	ElementMapper (const GV &gv)
	Construct a CellIndexProvider for the given GridView. More...
size_type	map (const Element &e) const
	Return the index of the given element. More...

Detailed Description

template<typename GV>
class Dune::PDELab::ElementMapper< GV >

Class providing a consecutive index for codim 0 entities of a GridView.

ElementMapper yields a unique, consecutive, zero-based index for all codim 0 entities of a GridView. Conceptually, this can also be achieved using a Mapper from dune-grid, but this implementation has better performance as it avoids looking up the GeometryType in a std::map. For the common case of grids with a single codim 0 GeometryType, ElementMapper is specialized to just look up the cell index on the IndexSet of the GridView.

Template Parameters

GV	The type of the GridView to operate on.

Constructor & Destructor Documentation

ElementMapper()

template<typename GV >

Dune::PDELab::ElementMapper< GV >::ElementMapper ( const GV &  gv )

inline

Construct a CellIndexProvider for the given GridView.

Parameters

gv	the GridView to operate on.

Member Function Documentation

map()

template<typename GV >

size_type Dune::PDELab::ElementMapper< GV >::map ( const Element &  e ) const

inline

Return the index of the given element.

Returns an index for the given codim 0 entity that is guaranteed to be zero-based, consecutive and unique across all codim 0 entities of the GridView.

Parameters

e	The codim 0 entity for which to calculate an index.

Returns

The index of the entity.

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

• dune/pdelab/common/elementmapper.hh