Dune::Fem::Integrator< Quadrature > Class Template Reference

integrator for arbitrary functions providing evaluate More...

#include <dune/fem/quadrature/integrator.hh>

Public Types
typedef Quadrature	QuadratureType
	type of quadrature to use
typedef QuadratureType::EntityType	EntityType
	type of the entity

Public Member Functions
	Integrator (unsigned int order)
	constructor More...
template<class Function >
void	integrateAdd (const EntityType &entity, const Function &function, typename Function ::RangeType &ret) const
	add the integral over an entity to a variable More...
template<class Function >
void	integrate (const EntityType &entity, const Function &function, typename Function ::RangeType &ret) const
	integrate a function over an entity More...

Detailed Description

template<class Quadrature>
class Dune::Fem::Integrator< Quadrature >

integrator for arbitrary functions providing evaluate

Parameters

Quadrature

quadrature to use (either ElementQuadrature or CachingQuadrature)

Constructor & Destructor Documentation

Integrator()

template<class Quadrature >

Dune::Fem::Integrator< Quadrature >::Integrator ( unsigned int  order )

inlineexplicit

constructor

Parameters

[in]

order

polynomial order for which the used quadrature shall be exact

Member Function Documentation

integrate()

template<class Quadrature >

template<class Function >

void Dune::Fem::Integrator< Quadrature >::integrate ( const EntityType &  entity, const Function &  function, typename Function ::RangeType &  ret  ) const

inline

integrate a function over an entity

The function needs to have an evaluate method supporting wrapped quadrature points. The declaration should look as follows:

template< class Point >
evaluate( Point &x, RangeType &ret );

Note

The RangeType should be compatible with a Dune FieldVector.

Parameters

[in]	entity	entity to integrate over
[in]	function	function to integrate
[out]	ret	value of the integral

References Dune::Fem::Integrator< Quadrature >::integrateAdd().

integrateAdd()

template<class Quadrature >

template<class Function >

void Dune::Fem::Integrator< Quadrature >::integrateAdd ( const EntityType &  entity, const Function &  function, typename Function ::RangeType &  ret  ) const

inline

add the integral over an entity to a variable

The function needs to have an evaluate method supporting wrapped quadrature points. The declaration should look as follows:

template< class Point >
evaluate( Point &x, RangeType &ret );

Note

The RangeType should be compatible with a Dune FieldVector.

Parameters

[in]	entity	entity to integrate over
[in]	function	function to integrate
	ret	variable to which the value of the integral is added

References Dune::Fem::Function< FunctionSpaceImp, FunctionImp >::evaluate().

Referenced by Dune::Fem::Integrator< Quadrature >::integrate().

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

• dune/fem/quadrature/integrator.hh