DiscreteFunction< Coeff, GB, TreePath > Class Template Reference

A mutable view on the subspace of a DOFVector,. More...

#include <DiscreteFunction.hpp>

Classes
class	DerivativeLocalFunctionBase
class	DivergenceLocalFunction
class	GradientLocalFunction
class	LocalFunction
class	PartialLocalFunction

Public Member Functions
template<class... Path>
	DiscreteFunction (Coefficients &dofVector, GlobalBasis const &basis, Path... path)
	Constructor. Stores a pointer to the mutable dofvector.
template<class DV , class... Path, class Coeff_ = TYPEOF(std::declval<DV>().coefficients()), class GB_ = TYPEOF(*std::declval<DV>().basis())>
	DiscreteFunction (DV &&dofVector, Path... path)
	Construct a DiscreteFunction directly from a DOFVector.
template<class Expr , class Tag = tag::average>
void	interpolate_noalias (Expr &&expr, Tag strategy={})
	Interpolation of GridFunction to DOFVector, assuming that there is no reference to this DOFVector in the expression. More...
template<class Expr , class Tag = tag::average>
void	interpolate (Expr &&expr, Tag strategy={})
	Interpolation of GridFunction to DOFVector. More...
template<class Expr >
Self &	operator<< (Expr &&expr)
	Interpolation of GridFunction to DOFVector, alias to interpolate()
template<class Expr >
Self &	operator+= (Expr &&expr)
	interpolate (*this) + expr to DOFVector
template<class Expr >
Self &	operator-= (Expr &&expr)
	interpolate (*this) - expr to DOFVector
Coefficients &	coefficients ()
	Return the mutable DOFVector.
template<class... Indices>
auto	child (Indices... ii)

Protected Attributes
Coefficients *	mutableCoeff_

Detailed Description

template<class Coeff, class GB, class TreePath>
class AMDiS::DiscreteFunction< Coeff, GB, TreePath >

A mutable view on the subspace of a DOFVector,.

A view on a subspace of a DOFVector.

Template Parameters

Coeff	Const or mutable coefficient type of the DOFVector
GB	Thy type of the global basis
TreePath	A realization of Dune::TypeTree::HybridTreePath

Requirements:

• GB models Concepts::GlobalBasis

Member Function Documentation

interpolate()

void interpolate	(	Expr &&	expr,
		Tag	strategy = {}
	)

Interpolation of GridFunction to DOFVector.

Example:

auto v = valueOf(prob.solutionVector(),0);
v.interpolate(v + [](auto const& x) { return x[0]; });

Allows to have a reference to the DOFVector in the expression, e.g. as DiscreteFunction or gradientOf() of a DiscreteFunction.

References DiscreteFunction< Coeff, GB, TreePath >::interpolate_noalias().

Referenced by DiscreteFunction< Coeff, GB, TreePath >::DiscreteFunction(), DiscreteFunction< Coeff, GB, TreePath >::interpolate_noalias(), DiscreteFunction< Coeff, GB, TreePath >::operator+=(), DiscreteFunction< Coeff, GB, TreePath >::operator-=(), and DiscreteFunction< Coeff, GB, TreePath >::operator<<().

interpolate_noalias()

void interpolate_noalias	(	Expr &&	expr,
		Tag	strategy = {}
	)

Interpolation of GridFunction to DOFVector, assuming that there is no reference to this DOFVector in the expression.

Example:

auto v = valueOf(prob.solutionVector(),0);
v.interpolate_noalias([](auto const& x) { return x[0]; });

References DiscreteFunction< Coeff, GB, TreePath >::interpolate(), AMDiS::interpolate(), and AMDiS::makeGridFunction().

Referenced by DiscreteFunction< Coeff, GB, TreePath >::DiscreteFunction(), and DiscreteFunction< Coeff, GB, TreePath >::interpolate().

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

• /home/docs/checkouts/readthedocs.org/user_builds/amdis-test/checkouts/develop/amdis/gridfunctions/DiscreteFunction.hpp
• /home/docs/checkouts/readthedocs.org/user_builds/amdis-test/checkouts/develop/amdis/gridfunctions/DiscreteFunction.inc.hpp