Dune::ACFem::FractionGridFunction< FunctionSpace, GridPart, numerator, denominator > Class Template Reference

A grid-function which is constant with a scalar fractional value. More...

#include <dune/acfem/functions/constantfunction.hh>

Collaboration diagram for Dune::ACFem::FractionGridFunction< FunctionSpace, GridPart, numerator, denominator >:

Public Types
typedef FractionGridFunctionTraits< FunctionSpace, GridPart, numerator, denominator >	TraitsType
	type of traits
typedef TraitsType::DiscreteFunctionSpaceType	DiscreteFunctionSpaceType
	type of discrete function space
typedef DiscreteFunctionSpaceType::GridPartType	GridPartType
	type of gridPart
typedef DiscreteFunctionSpaceType::GridType	GridType
	type of grid
typedef DiscreteFunctionSpaceType::DomainFieldType	DomainFieldType
	domain type (from function space)
typedef DiscreteFunctionSpaceType::DomainType	DomainType
	domain type (from function space)
typedef DiscreteFunctionSpaceType::RangeType	RangeType
	range type (from function space)
typedef DiscreteFunctionSpaceType::JacobianRangeType	JacobianRangeType
	jacobian type (from function space)
typedef DiscreteFunctionSpaceType::HessianRangeType	HessianRangeType
	hessian type (from function space)
typedef TraitsType::EntityType	EntityType
	type of codim 0 entity
typedef LocalFunction	LocalFunctionType
	type of local function to export

Public Member Functions
	FractionGridFunction (const GridPart &grid)
	The value of this function is built into its type, so the only dynamic constituent for the constructor is the grid.
void	evaluate (const DomainType &global, RangeType &result) const
	Evaluate function in global coordinates.
void	jacobian (const DomainType &global, JacobianRangeType &result) const
	Evaluate jacobian in global coordinates.
void	hessian (const DomainType &global, HessianRangeType &result) const
	Evaluate hessian in global coordinates.
const LocalFunctionType	localFunction (const EntityType &entity) const
	See Dune::Fem::DiscreteFunctionInterface::localFunction(const EntityType &entity) const.
LocalFunctionType	localFunction (const EntityType &entity)
	See Dune::Fem::DiscreteFunctionInterface::localFunction(const EntityType &entity)
const DiscreteFunctionSpaceType &	space () const
	See Dune::Fem::DiscreteFunctionInterface::space() const.
RangeType	value () const
	Return the one constant value.

Detailed Description

template<class FunctionSpace, class GridPart, ssize_t numerator, size_t denominator>
class Dune::ACFem::FractionGridFunction< FunctionSpace, GridPart, numerator, denominator >

A grid-function which is constant with a scalar fractional value.

This function is in particular used to model the scalar constant 1 function. Expression templates will to some extent honour multiplication by this function as a no-op.

Parameters

FunctionSpace

The Super-ordinate function space. Note that the actual function-space of FractionGridFunction is FunctionSpace::ScalarFunctionSpace. This family of functions is never vector-valued.

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

• dune/acfem/functions/constantfunction.hh