#include <lininteg.hpp>

Inheritance diagram for mfem::DGDirichletLFIntegrator:

Collaboration diagram for mfem::DGDirichletLFIntegrator:

Public Member Functions
	DGDirichletLFIntegrator (Coefficient &u, const real_t s, const real_t k)

	DGDirichletLFIntegrator (Coefficient &u, Coefficient &q, const real_t s, const real_t k)

	DGDirichletLFIntegrator (Coefficient &u, MatrixCoefficient &q, const real_t s, const real_t k)

void	AssembleRHSElementVect (const FiniteElement &el, ElementTransformation &Tr, Vector &elvect) override

void	AssembleRHSElementVect (const FiniteElement &el, FaceElementTransformations &Tr, Vector &elvect) override

virtual void	AssembleRHSElementVect (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, Vector &elvect)

Public Member Functions inherited from mfem::LinearFormIntegrator
virtual bool	SupportsDevice () const
	Method probing for assembly on device.

virtual void	AssembleDevice (const FiniteElementSpace &fes, const Array< int > &markers, Vector &b)
	Method defining assembly on device.

virtual	~LinearFormIntegrator ()

Public Member Functions inherited from mfem::Integrator
	Integrator (const IntegrationRule *ir=NULL)
	Create a new Integrator, optionally providing a prescribed quadrature rule to use in assembly.

virtual void	SetIntRule (const IntegrationRule *ir)
	Prescribe a fixed IntegrationRule to use, or set to null to let the integrator choose an appropriate rule.

void	SetIntegrationRule (const IntegrationRule &ir)
	Prescribe a fixed IntegrationRule to use. Sets the NURBS patch integration rule to null.

void	SetNURBSPatchIntRule (NURBSMeshRules *pr)
	Sets an integration rule for use on NURBS patches.

bool	HasNURBSPatchIntRule () const
	Check if a NURBS patch integration rule has been set.

const IntegrationRule *	GetIntRule () const
	Directly return the IntRule pointer (possibly null) without checking for NURBS patch rules or falling back on a default.

const IntegrationRule *	GetIntegrationRule () const
	Equivalent to GetIntRule, but retained for backward compatibility with applications.

Protected Attributes
Coefficient *	uD

Coefficient *	Q

MatrixCoefficient *	MQ

real_t	sigma

real_t	kappa

Vector	shape

Vector	dshape_dn

Vector	nor

Vector	nh

Vector	ni

DenseMatrix	dshape

DenseMatrix	mq

DenseMatrix	adjJ

Protected Attributes inherited from mfem::Integrator
const IntegrationRule *	IntRule

NURBSMeshRules *	patchRules = nullptr

Additional Inherited Members
Protected Member Functions inherited from mfem::LinearFormIntegrator
	LinearFormIntegrator (const IntegrationRule *ir=NULL)

Protected Member Functions inherited from mfem::Integrator
const IntegrationRule *	GetIntegrationRule (const FiniteElement &trial_fe, const FiniteElement &test_fe, const ElementTransformation &trans) const
	Returns an integration rule based on the arguments and internal state of the Integrator object.

const IntegrationRule *	GetIntegrationRule (const FiniteElement &el, const ElementTransformation &trans) const
	Returns an integration rule based on the arguments and internal state. (Version for identical trial_fe and test_fe)

virtual const IntegrationRule *	GetDefaultIntegrationRule (const FiniteElement &trial_fe, const FiniteElement &test_fe, const ElementTransformation &trans) const
	Subclasses should override to choose a default integration rule.

Detailed Description

Boundary linear integrator for imposing non-zero Dirichlet boundary conditions, to be used in conjunction with DGDiffusionIntegrator. Specifically, given the Dirichlet data \(u_D\), the linear form assembles the following integrals on the boundary:

\[ \sigma \langle u_D, (Q \nabla v)) \cdot n \rangle + \kappa \langle {h^{-1} Q} u_D, v \rangle, \]

where Q is a scalar or matrix diffusion coefficient and v is the test function. The parameters \(\sigma\) and \(\kappa\) should be the same as the ones used in the DGDiffusionIntegrator.

Definition at line 552 of file lininteg.hpp.

Constructor & Destructor Documentation

◆ DGDirichletLFIntegrator() [1/3]

mfem::DGDirichletLFIntegrator::DGDirichletLFIntegrator	(	Coefficient &	u,
		const real_t	s,
		const real_t	k )

inline

Definition at line 564 of file lininteg.hpp.

◆ DGDirichletLFIntegrator() [2/3]

mfem::DGDirichletLFIntegrator::DGDirichletLFIntegrator	(	Coefficient &	u,
		Coefficient &	q,
		const real_t	s,
		const real_t	k )

inline

Definition at line 566 of file lininteg.hpp.

◆ DGDirichletLFIntegrator() [3/3]

mfem::DGDirichletLFIntegrator::DGDirichletLFIntegrator	(	Coefficient &	u,
		MatrixCoefficient &	q,
		const real_t	s,
		const real_t	k )

inline

Definition at line 569 of file lininteg.hpp.

Member Function Documentation

◆ AssembleRHSElementVect() [1/3]

void mfem::DGDirichletLFIntegrator::AssembleRHSElementVect	(	const FiniteElement &	el,
		ElementTransformation &	Tr,
		Vector &	elvect )

overridevirtual

Given a particular Finite Element and a transformation (Tr) computes the element vector, elvect.

Implements mfem::LinearFormIntegrator.

Definition at line 810 of file lininteg.cpp.

◆ AssembleRHSElementVect() [2/3]

void mfem::DGDirichletLFIntegrator::AssembleRHSElementVect	(	const FiniteElement &	el,
		FaceElementTransformations &	Tr,
		Vector &	elvect )

overridevirtual

Reimplemented from mfem::LinearFormIntegrator.

Definition at line 816 of file lininteg.cpp.

◆ AssembleRHSElementVect() [3/3]

void mfem::LinearFormIntegrator::AssembleRHSElementVect	(	const FiniteElement &	el1,
		const FiniteElement &	el2,
		FaceElementTransformations &	Tr,
		Vector &	elvect )

virtual

Reimplemented from mfem::LinearFormIntegrator.

Definition at line 49 of file lininteg.cpp.

Member Data Documentation

◆ adjJ

DenseMatrix mfem::DGDirichletLFIntegrator::adjJ

protected

Definition at line 561 of file lininteg.hpp.

◆ dshape

DenseMatrix mfem::DGDirichletLFIntegrator::dshape

protected

Definition at line 561 of file lininteg.hpp.

◆ dshape_dn

Vector mfem::DGDirichletLFIntegrator::dshape_dn

protected

Definition at line 560 of file lininteg.hpp.

◆ kappa

real_t mfem::DGDirichletLFIntegrator::kappa

protected

Definition at line 557 of file lininteg.hpp.

◆ MQ

MatrixCoefficient* mfem::DGDirichletLFIntegrator::MQ

protected

Definition at line 556 of file lininteg.hpp.

◆ mq

DenseMatrix mfem::DGDirichletLFIntegrator::mq

protected

Definition at line 561 of file lininteg.hpp.

◆ nh

Vector mfem::DGDirichletLFIntegrator::nh

protected

Definition at line 560 of file lininteg.hpp.

◆ ni

Vector mfem::DGDirichletLFIntegrator::ni

protected

Definition at line 560 of file lininteg.hpp.

◆ nor

Vector mfem::DGDirichletLFIntegrator::nor

protected

Definition at line 560 of file lininteg.hpp.

◆ Q

Coefficient * mfem::DGDirichletLFIntegrator::Q

protected

Definition at line 555 of file lininteg.hpp.

◆ shape

Vector mfem::DGDirichletLFIntegrator::shape

protected

Definition at line 560 of file lininteg.hpp.

◆ sigma

real_t mfem::DGDirichletLFIntegrator::sigma

protected

Definition at line 557 of file lininteg.hpp.

◆ uD

Coefficient* mfem::DGDirichletLFIntegrator::uD

protected

Definition at line 555 of file lininteg.hpp.

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

fem/lininteg.hpp
fem/lininteg.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DGDirichletLFIntegrator() [1/3]

◆ DGDirichletLFIntegrator() [2/3]

◆ DGDirichletLFIntegrator() [3/3]

Member Function Documentation

◆ AssembleRHSElementVect() [1/3]

◆ AssembleRHSElementVect() [2/3]

◆ AssembleRHSElementVect() [3/3]

Member Data Documentation

◆ adjJ

◆ dshape

◆ dshape_dn

◆ kappa

◆ MQ

◆ mq

◆ nh

◆ ni

◆ nor

◆ Q

◆ shape

◆ sigma

◆ uD