mfem::ElementTransformation Class Reference

#include <eltrans.hpp>

Inheritance diagram for mfem::ElementTransformation:

Collaboration diagram for mfem::ElementTransformation:

Public Member Functions
	ElementTransformation ()
void	SetIntPoint (const IntegrationPoint *ip)
const IntegrationPoint &	GetIntPoint ()
virtual void	Transform (const IntegrationPoint &, Vector &)=0
virtual void	Transform (const IntegrationRule &, DenseMatrix &)=0
virtual void	Transform (const DenseMatrix &matrix, DenseMatrix &result)=0
	Transform columns of 'matrix', store result in 'result'. More...
const DenseMatrix &	Jacobian ()
double	Weight ()
const DenseMatrix &	AdjugateJacobian ()
const DenseMatrix &	InverseJacobian ()
virtual int	Order ()=0
virtual int	OrderJ ()=0
virtual int	OrderW ()=0
virtual int	OrderGrad (const FiniteElement *fe)=0
	order of adj(J)^t.grad(fi) More...
virtual int	GetSpaceDim ()=0
virtual int	TransformBack (const Vector &, IntegrationPoint &)=0
virtual	~ElementTransformation ()

Public Attributes
int	Attribute
int	ElementNo

Protected Types
enum	StateMasks { JACOBIAN_MASK = 1, WEIGHT_MASK = 2, ADJUGATE_MASK = 4, INVERSE_MASK = 8 }

Protected Member Functions
virtual const DenseMatrix &	EvalJacobian ()=0
double	EvalWeight ()
const DenseMatrix &	EvalAdjugateJ ()
const DenseMatrix &	EvalInverseJ ()

Protected Attributes
const IntegrationPoint *	IntPoint
DenseMatrix	dFdx
DenseMatrix	adjJ
DenseMatrix	invJ
double	Wght
int	EvalState

Detailed Description

Definition at line 23 of file eltrans.hpp.

Member Enumeration Documentation

enum mfem::ElementTransformation::StateMasks

protected

Enumerator
JACOBIAN_MASK
WEIGHT_MASK
ADJUGATE_MASK
INVERSE_MASK

Definition at line 30 of file eltrans.hpp.

Constructor & Destructor Documentation

mfem::ElementTransformation::ElementTransformation

(

)

Definition at line 19 of file eltrans.cpp.

virtual mfem::ElementTransformation::~ElementTransformation ( )

inlinevirtual

Definition at line 91 of file eltrans.hpp.

Member Function Documentation

const DenseMatrix& mfem::ElementTransformation::AdjugateJacobian ( )

inline

Definition at line 69 of file eltrans.hpp.

const DenseMatrix & mfem::ElementTransformation::EvalAdjugateJ ( )

protected

Definition at line 34 of file eltrans.cpp.

const DenseMatrix & mfem::ElementTransformation::EvalInverseJ ( )

protected

Definition at line 44 of file eltrans.cpp.

virtual const DenseMatrix& mfem::ElementTransformation::EvalJacobian ( )

protectedpure virtual

double mfem::ElementTransformation::EvalWeight ( )

protected

Definition at line 26 of file eltrans.cpp.

const IntegrationPoint& mfem::ElementTransformation::GetIntPoint ( )

inline

Definition at line 53 of file eltrans.hpp.

virtual int mfem::ElementTransformation::GetSpaceDim ( )

pure virtual

Get dimension of target space (we support 2D meshes embedded in 3D; in this case the function should return "3").

Implemented in mfem::IsoparametricTransformation.

const DenseMatrix& mfem::ElementTransformation::InverseJacobian ( )

inline

Definition at line 72 of file eltrans.hpp.

const DenseMatrix& mfem::ElementTransformation::Jacobian ( )

inline

Return the Jacobian of the transformation at the IntPoint. The first column contains the x derivatives of the transformation, the second – the y derivatives, etc.

Definition at line 64 of file eltrans.hpp.

virtual int mfem::ElementTransformation::Order ( )

pure virtual

Implemented in mfem::IsoparametricTransformation.

virtual int mfem::ElementTransformation::OrderGrad ( const FiniteElement *  fe )

pure virtual

order of adj(J)^t.grad(fi)

Implemented in mfem::IsoparametricTransformation.

virtual int mfem::ElementTransformation::OrderJ ( )

pure virtual

Implemented in mfem::IsoparametricTransformation.

virtual int mfem::ElementTransformation::OrderW ( )

pure virtual

Implemented in mfem::IsoparametricTransformation.

void mfem::ElementTransformation::SetIntPoint ( const IntegrationPoint *  ip )

inline

Definition at line 51 of file eltrans.hpp.

virtual void mfem::ElementTransformation::Transform ( const IntegrationPoint &  , Vector &    )

pure virtual

Implemented in mfem::IsoparametricTransformation.

virtual void mfem::ElementTransformation::Transform ( const IntegrationRule &  , DenseMatrix &    )

pure virtual

Implemented in mfem::IsoparametricTransformation.

virtual void mfem::ElementTransformation::Transform ( const DenseMatrix &  matrix, DenseMatrix &  result  )

pure virtual

Transform columns of 'matrix', store result in 'result'.

Implemented in mfem::IsoparametricTransformation.

virtual int mfem::ElementTransformation::TransformBack ( const Vector &  , IntegrationPoint &    )

pure virtual

Attempt to find the IntegrationPoint that is transformed into the given point in physical space. If the inversion fails a non-zero value is returned. This method is not 100 percent reliable for non-linear transformations.

Implemented in mfem::IsoparametricTransformation.

double mfem::ElementTransformation::Weight ( )

inline

Definition at line 67 of file eltrans.hpp.

Member Data Documentation

DenseMatrix mfem::ElementTransformation::adjJ

protected

Definition at line 27 of file eltrans.hpp.

int mfem::ElementTransformation::Attribute

Definition at line 47 of file eltrans.hpp.

DenseMatrix mfem::ElementTransformation::dFdx

protected

Definition at line 27 of file eltrans.hpp.

int mfem::ElementTransformation::ElementNo

Definition at line 47 of file eltrans.hpp.

int mfem::ElementTransformation::EvalState

protected

Definition at line 29 of file eltrans.hpp.

const IntegrationPoint* mfem::ElementTransformation::IntPoint

protected

Definition at line 26 of file eltrans.hpp.

DenseMatrix mfem::ElementTransformation::invJ

protected

Definition at line 27 of file eltrans.hpp.

double mfem::ElementTransformation::Wght

protected

Definition at line 28 of file eltrans.hpp.

---

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

• eltrans.hpp
• eltrans.cpp