DiscreteFunction< Coeff, GB, TreePath, R > Class Template Reference

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

#include <DiscreteFunction.hpp>

Classes
class	LocalFunction

Public Member Functions
template<class C , class B , class... Path, REQUIRES(Concepts::Similar< Underlying_t< C >, Coefficients >) , REQUIRES(Concepts::Similar< Underlying_t< B >, GlobalBasis >) >
	DiscreteFunction (C &&coefficients, B &&basis, Path... path)
	Constructor. Stores a pointer to the mutable coefficients vector.
template<class Expr , class Tag = tag::assign>
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::assign>
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 Range = void, class... Indices>
auto	child (Indices... ii)

Protected Attributes
std::shared_ptr< Coefficients >	mutableCoeff_

Detailed Description

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

A mutable view on the subspace of a DOFVector,.

A view on a subspace of a DOFVector.

Template Parameters

Coeff	Const or mutable coefficient vector
GB	The type of the global basis
TreePath	A realization of Dune::TypeTree::HybridTreePath
Range	The range type for th evaluation of the discrete function

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, R >::interpolate_noalias().

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

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

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

• /home/docs/checkouts/readthedocs.org/user_builds/amdis/checkouts/latest/amdis/DOFVector.hpp
• /home/docs/checkouts/readthedocs.org/user_builds/amdis/checkouts/latest/amdis/gridfunctions/DiscreteFunction.hpp
• /home/docs/checkouts/readthedocs.org/user_builds/amdis/checkouts/latest/amdis/gridfunctions/DiscreteFunction.inc.hpp