DiffusionIntegrator Class Reference

#include <bilininteg.hpp>

Inheritance diagram for DiffusionIntegrator:

Collaboration diagram for DiffusionIntegrator:

List of all members.

Public Member Functions
	DiffusionIntegrator (Coefficient &q)
	Construct a diffusion integrator with a scalar coefficient q.
	DiffusionIntegrator (MatrixCoefficient &q)
	Construct a diffusion integrator with a matrix coefficient q.
virtual void	AssembleElementMatrix (const FiniteElement &el, ElementTransformation &Trans, DenseMatrix &elmat)
virtual void	ComputeElementFlux (const FiniteElement &el, ElementTransformation &Trans, Vector &u, const FiniteElement &fluxelem, Vector &flux, int wcoef)
virtual double	ComputeFluxEnergy (const FiniteElement &fluxelem, ElementTransformation &Trans, Vector &flux)
Private Attributes
Vector	vec
Vector	pointflux
Vector	shape
DenseMatrix	dshape
DenseMatrix	dshapedxt
DenseMatrix	invdfdx
Coefficient *	Q
MatrixCoefficient *	MQ

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Detailed Description

Class for integrating the bilinear form a(u,v) := (Q grad u, grad v) where Q can be a scalar or a matrix coefficient.

Definition at line 87 of file bilininteg.hpp.

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Constructor & Destructor Documentation

DiffusionIntegrator::DiffusionIntegrator

(

Coefficient &

q

)

[inline]

Construct a diffusion integrator with a scalar coefficient q.

Definition at line 99 of file bilininteg.hpp.

References MQ.

DiffusionIntegrator::DiffusionIntegrator

(

MatrixCoefficient &

q

)

[inline]

Construct a diffusion integrator with a matrix coefficient q.

Definition at line 102 of file bilininteg.hpp.

References Q.

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Member Function Documentation

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

Given a particular Finite Element computes the element stiffness matrix elmat.

Reimplemented from BilinearFormIntegrator.

Definition at line 68 of file bilininteg.cpp.

References AddMult_a_AAt(), AddMultABt(), FiniteElement::CalcDShape(), CalcInverse(), IntegrationRules::Get(), FiniteElement::GetDim(), FiniteElement::GetDof(), FiniteElement::GetGeomType(), IntegrationRule::GetNPoints(), FiniteElement::GetOrder(), IntegrationRule::IntPoint(), IntRules, ElementTransformation::Jacobian(), Mult(), MultABt(), FunctionSpace::Pk, RefinedIntRules, FunctionSpace::rQk, ElementTransformation::SetIntPoint(), DenseMatrix::SetSize(), FiniteElement::Space(), IntegrationPoint::weight, and ElementTransformation::Weight().

void DiffusionIntegrator::ComputeElementFlux	(	const FiniteElement &	el,
		ElementTransformation &	Trans,
		Vector &	u,
		const FiniteElement &	fluxelem,
		Vector &	flux,
		int	wcoef
	)		[virtual]

Reimplemented from BilinearFormIntegrator.

Definition at line 123 of file bilininteg.cpp.

References FiniteElement::CalcDShape(), CalcInverse(), FiniteElement::GetDim(), FiniteElement::GetDof(), FiniteElement::GetNodes(), IntegrationRule::GetNPoints(), IntegrationRule::IntPoint(), ElementTransformation::Jacobian(), DenseMatrix::Mult, DenseMatrix::MultTranspose(), ElementTransformation::SetIntPoint(), Vector::SetSize(), and DenseMatrix::SetSize().

double DiffusionIntegrator::ComputeFluxEnergy	(	const FiniteElement &	fluxelem,
		ElementTransformation &	Trans,
		Vector &	flux
	)		[virtual]

Reimplemented from BilinearFormIntegrator.

Definition at line 173 of file bilininteg.cpp.

References FiniteElement::CalcShape(), IntegrationRules::Get(), FiniteElement::GetDim(), FiniteElement::GetDof(), FiniteElement::GetGeomType(), IntegrationRule::GetNPoints(), FiniteElement::GetOrder(), IntegrationRule::IntPoint(), IntRules, DenseMatrix::Mult, ElementTransformation::SetIntPoint(), DenseMatrix::SetSize(), IntegrationPoint::weight, and ElementTransformation::Weight().

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Member Data Documentation

DenseMatrix DiffusionIntegrator::dshape [private]

Definition at line 92 of file bilininteg.hpp.

DenseMatrix DiffusionIntegrator::dshapedxt [private]

Definition at line 92 of file bilininteg.hpp.

DenseMatrix DiffusionIntegrator::invdfdx [private]

Definition at line 92 of file bilininteg.hpp.

MatrixCoefficient* DiffusionIntegrator::MQ [private]

Definition at line 95 of file bilininteg.hpp.

Referenced by DiffusionIntegrator().

Vector DiffusionIntegrator::pointflux [private]

Definition at line 90 of file bilininteg.hpp.

Coefficient* DiffusionIntegrator::Q [private]

Definition at line 94 of file bilininteg.hpp.

Referenced by DiffusionIntegrator().

Vector DiffusionIntegrator::shape [private]

Definition at line 90 of file bilininteg.hpp.

Vector DiffusionIntegrator::vec [private]

Definition at line 90 of file bilininteg.hpp.

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

• bilininteg.hpp
• bilininteg.cpp