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>

Inheritance diagram for Dune::PDELab::ElementMapper< GV >:

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

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.

Member Typedef Documentation

Element

template<typename GV >

typedef BaseT::Element Dune::PDELab::ElementMapper< GV >::Element

The type of the codim 0 entities of the GridView.

size_type

template<typename GV >

typedef BaseT::size_type Dune::PDELab::ElementMapper< GV >::size_type

The type of the returned index.

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:

• elementmapper.hh