Dune::PDELab::DiscreteGridFunction< T, X > Class Template Reference

convert a grid function space and a coefficient vector into a grid function More...

#include <dune/pdelab/gridfunctionspace/gridfunctionspaceutilities.hh>

Inheritance diagram for Dune::PDELab::DiscreteGridFunction< T, X >:

Public Types
typedef BaseT::Traits	Traits
typedef GridFunctionTag	ImplementationTag
typedef T::GridViewType	GridViewType
	Type of the GridView.
using	Output = typename Base::Output
typedef LeafNodeTag	NodeTag

Public Member Functions
	DiscreteGridFunction (const GFS &gfs, const X &x_)
	Construct a DiscreteGridFunction.
	DiscreteGridFunction (std::shared_ptr< const GFS > gfs, std::shared_ptr< const X > x_)
	Construct a DiscreteGridFunction.
void	evaluate (const typename Traits::ElementType &e, const typename Traits::DomainType &x, typename Traits::RangeType &y) const
const Traits::GridViewType &	getGridView () const
	get a reference to the GridView
Output::DataSetType	dataSetType () const
	Return the data set type of this function.
void	setDataSetType (Output::DataSetType dataSetType)
	Set the data set type of this function.

Static Public Member Functions
static constexpr auto	degree ()

Static Public Attributes
static const bool	isLeaf
static const bool	isPower
static const bool	isComposite
static const std::size_t	CHILDREN

Detailed Description

template<typename T, typename X>
class Dune::PDELab::DiscreteGridFunction< T, X >

convert a grid function space and a coefficient vector into a grid function

If a GridFunctionSpace with local-valued finite elements is used, this class can only be used for scalar functions, since for vector-valued local finite elements the values must be transformed, and the transformation depends on the type of element. For H(div) elements (Raviart-Thomas) look at DiscreteGridFunctionPiola.

If a GridFunctionSpace with finite elements using the new global-valued interface is used, this class can be used as-is even for vector-valued functions.

If you have a GridFunctionSpace tree of 1-component grid-function spaces, and want to collectively treat them as a vector-valued grid-function, look at VectorDiscreteGridFunction.

Template Parameters

T	Type of GridFunctionSpace
X	Type of coefficients vector

Examples

recipe-communication.cc, and recipe-operator-splitting.cc.

Member Typedef Documentation

GridViewType

typedef T::GridViewType Dune::PDELab::GridFunctionBase< GridFunctionTraits< T::Traits::GridViewType, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::RangeField, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::dimRange, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::Range > , DiscreteGridFunction< T, X > >::GridViewType

inherited

Type of the GridView.

ImplementationTag

typedef GridFunctionTag Dune::PDELab::GridFunctionBase< GridFunctionTraits< T::Traits::GridViewType, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::RangeField, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::dimRange, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::Range > , DiscreteGridFunction< T, X > >::ImplementationTag

inherited

Output

using Dune::PDELab::GridFunctionBase< GridFunctionTraits< T::Traits::GridViewType, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::RangeField, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::dimRange, BasisInterfaceSwitch< FiniteElementInterfaceSwitch< T::Traits::FiniteElementType >::Basis >::Range > , DiscreteGridFunction< T, X > >::Output = typename Base::Output

inherited

Traits

template<typename T , typename X >

typedef BaseT::Traits Dune::PDELab::DiscreteGridFunction< T, X >::Traits

Constructor & Destructor Documentation

DiscreteGridFunction() [1/2]

template<typename T , typename X >

Dune::PDELab::DiscreteGridFunction< T, X >::DiscreteGridFunction ( const GFS &  gfs, const X &  x_  )

inline

Construct a DiscreteGridFunction.

Parameters

gfs	The GridFunctionsSpace
x_	The coefficients vector

DiscreteGridFunction() [2/2]

template<typename T , typename X >

Dune::PDELab::DiscreteGridFunction< T, X >::DiscreteGridFunction ( std::shared_ptr< const GFS >  gfs, std::shared_ptr< const X >  x_  )

inline

Construct a DiscreteGridFunction.

Parameters

gfs	shared pointer to the GridFunctionsSpace
x_	shared pointer to the coefficients vector

Member Function Documentation

dataSetType()

Output::DataSetType Dune::PDELab::GridFunctionOutputParameters::dataSetType ( ) const

inlineinherited

Return the data set type of this function.

evaluate()

template<typename T , typename X >

void Dune::PDELab::DiscreteGridFunction< T, X >::evaluate ( const typename Traits::ElementType &  e, const typename Traits::DomainType &  x, typename Traits::RangeType &  y  ) const

inline

getGridView()

template<typename T , typename X >

const Traits::GridViewType & Dune::PDELab::DiscreteGridFunction< T, X >::getGridView ( ) const

inline

get a reference to the GridView

setDataSetType()

void Dune::PDELab::GridFunctionOutputParameters::setDataSetType ( Output::DataSetType  dataSetType )

inlineinherited

Set the data set type of this function.

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

• gridfunctionspaceutilities.hh