Dune::Functions::DefaultLocalView< GB > Class Template Reference

The restriction of a finite element basis to a single element. More...

#include <dune/functions/functionspacebases/defaultlocalview.hh>

Public Types
using	GlobalBasis = GB
	The global FE basis that this is a view on.
using	GridView = typename GlobalBasis::GridView
	The grid view the global FE basis lives on.
using	Element = typename GridView::template Codim< 0 >::Entity
	Type of the grid element we are bound to.
using	size_type = std::size_t
	The type used for sizes.
using	Tree = typename GlobalBasis::PreBasis::Node
	Tree of local finite elements / local shape function sets.
using	MultiIndex = std::conditional_t<(PreBasis::minMultiIndexSize==PreBasis::maxMultiIndexSize), StaticMultiIndex< size_type, PreBasis::maxMultiIndexSize >, Dune::ReservedVector< size_type, PreBasis::multiIndexBufferSize > >
	Type used for global numbering of the basis vectors.

Public Member Functions
	DefaultLocalView (const GlobalBasis &globalBasis)
	Construct local view for a given global finite element basis.
void	bind (const Element &e)
	Bind the view to a grid element. More...
bool	bound () const
	Return if the view is bound to a grid element.
const Element &	element () const
	Return the grid element that the view is bound to. More...
void	unbind ()
	Unbind from the current element. More...
const Tree &	tree () const
	Return the local ansatz tree associated to the bound entity. More...
size_type	size () const
	Total number of degrees of freedom on this element.
size_type	maxSize () const
	Maximum local size for any element on the GridView. More...
const MultiIndex &	index (size_type i) const
	Maps from subtree index set [0..size-1] to a globally unique multi index in global basis.
const GlobalBasis &	globalBasis () const
	Return the global basis that we are a view on.

Detailed Description

template<class GB>
class Dune::Functions::DefaultLocalView< GB >

The restriction of a finite element basis to a single element.

Member Function Documentation

bind()

template<class GB >

void Dune::Functions::DefaultLocalView< GB >::bind ( const Element &  e )

inline

Bind the view to a grid element.

Having to bind the view to an element before being able to actually access any of its data members offers to centralize some expensive setup code in the 'bind' method, which can save a lot of run-time.

References Dune::Functions::DefaultLocalView< GB >::size().

element()

template<class GB >

const Element & Dune::Functions::DefaultLocalView< GB >::element ( ) const

inline

Return the grid element that the view is bound to.

Exceptions

Dune::Exception

if the view is not bound to anything

maxSize()

template<class GB >

size_type Dune::Functions::DefaultLocalView< GB >::maxSize ( ) const

inline

Maximum local size for any element on the GridView.

This is the maximal size needed for local matrices and local vectors, i.e., the result is

tree()

template<class GB >

const Tree & Dune::Functions::DefaultLocalView< GB >::tree ( ) const

inline

Return the local ansatz tree associated to the bound entity.

Returns

Tree // This is tree

unbind()

template<class GB >

void Dune::Functions::DefaultLocalView< GB >::unbind ( )

inline

Unbind from the current element.

Calling this method should only be a hint that the view can be unbound.

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

• dune/functions/functionspacebases/defaultlocalview.hh