#include <bilininteg.hpp>

Inheritance diagram for VectorFEDivergenceIntegrator:

Collaboration diagram for VectorFEDivergenceIntegrator:

Public Member Functions
	VectorFEDivergenceIntegrator ()
	VectorFEDivergenceIntegrator (Coefficient &q)
virtual void	AssembleElementMatrix (const FiniteElement &el, ElementTransformation &Trans, DenseMatrix &elmat)
	Given a particular Finite Element computes the element matrix elmat.
virtual void	AssembleElementMatrix2 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans, DenseMatrix &elmat)
Private Attributes
Coefficient *	Q
Vector	divshape
Vector	shape

Detailed Description

Class for integrating (div u, p) where u is a vector field given by VectorFiniteElement through Piola transformation (for RT elements); p is scalar function given by FiniteElement through standard transformation. Here, u is the trial function and p is the test function. Note: the element matrix returned by AssembleElementMatrix2 does NOT depend on the ElementTransformation Trans.

Definition at line 215 of file bilininteg.hpp.

Constructor & Destructor Documentation

VectorFEDivergenceIntegrator::VectorFEDivergenceIntegrator ( ) [inline]

Definition at line 223 of file bilininteg.hpp.

References Q.

VectorFEDivergenceIntegrator::VectorFEDivergenceIntegrator ( Coefficient & q ) [inline]

Definition at line 224 of file bilininteg.hpp.

References Q.

Member Function Documentation

virtual void VectorFEDivergenceIntegrator::AssembleElementMatrix	(	const FiniteElement &	el,
		ElementTransformation &	Trans,
		DenseMatrix &	elmat
	)		`[inline, virtual]`

Given a particular Finite Element computes the element matrix elmat.

Reimplemented from BilinearFormIntegrator.

Definition at line 225 of file bilininteg.hpp.

void VectorFEDivergenceIntegrator::AssembleElementMatrix2	(	const FiniteElement &	trial_fe,
		const FiniteElement &	test_fe,
		ElementTransformation &	Trans,
		DenseMatrix &	elmat
	)		`[virtual]`

Compute the local matrix representation of a bilinear form a(u,v) defined on different trial (given by u) and test (given by v) spaces. The rows in the local matrix correspond to the test dofs and the columns -- to the trial dofs.

Reimplemented from BilinearFormIntegrator.

Definition at line 408 of file bilininteg.cpp.

References AddMultVWt(), FiniteElement::CalcDivShape(), FiniteElement::CalcShape(), divshape, Coefficient::Eval(), IntegrationRules::Get(), FiniteElement::GetDof(), FiniteElement::GetGeomType(), IntegrationRule::GetNPoints(), FiniteElement::GetOrder(), IntegrationRule::IntPoint(), IntRules, Q, ElementTransformation::SetIntPoint(), DenseMatrix::SetSize(), Vector::SetSize(), shape, and IntegrationPoint::weight.