mfem::IsoparametricTransformation Class Reference

#include <eltrans.hpp>

Inheritance diagram for mfem::IsoparametricTransformation:

Collaboration diagram for mfem::IsoparametricTransformation:

Public Member Functions
void	SetFE (const FiniteElement *FE)
const FiniteElement *	GetFE () const
DenseMatrix &	GetPointMat ()
	Read and write access to the underlying point matrix describing the transformation. More...
void	FinalizeTransformation ()
void	SetIdentityTransformation (int GeomType)
virtual void	Transform (const IntegrationPoint &, Vector &)
virtual void	Transform (const IntegrationRule &, DenseMatrix &)
virtual void	Transform (const DenseMatrix &matrix, DenseMatrix &result)
	Transform columns of 'matrix', store result in 'result'. More...
virtual int	Order ()
virtual int	OrderJ ()
virtual int	OrderW ()
virtual int	OrderGrad (const FiniteElement *fe)
	Order of adj(J)^t.grad(fi) More...
virtual int	TransformBack (const Vector &v, IntegrationPoint &ip)
	Transform a point pt from physical space to a point ip in reference space. More...
virtual	~IsoparametricTransformation ()
Public Member Functions inherited from mfem::ElementTransformation
	ElementTransformation ()
void	SetIntPoint (const IntegrationPoint *ip)
const IntegrationPoint &	GetIntPoint ()
const DenseMatrix &	Jacobian ()
	Return the Jacobian matrix of the transformation at the currently set IntegrationPoint, using the method SetIntPoint(). More...
double	Weight ()
const DenseMatrix &	AdjugateJacobian ()
const DenseMatrix &	InverseJacobian ()
int	GetGeometryType () const
	Return the Geometry::Type of the reference element. More...
int	GetDimension () const
	Return the dimension of the reference element. More...
int	GetSpaceDim () const
	Get the dimension of the target (physical) space. More...
virtual	~ElementTransformation ()

Additional Inherited Members
Public Attributes inherited from mfem::ElementTransformation
int	Attribute
int	ElementNo
Protected Types inherited from mfem::ElementTransformation
enum	StateMasks { JACOBIAN_MASK = 1, WEIGHT_MASK = 2, ADJUGATE_MASK = 4, INVERSE_MASK = 8 }
Protected Member Functions inherited from mfem::ElementTransformation
double	EvalWeight ()
const DenseMatrix &	EvalAdjugateJ ()
const DenseMatrix &	EvalInverseJ ()
Protected Attributes inherited from mfem::ElementTransformation
const IntegrationPoint *	IntPoint
DenseMatrix	dFdx
DenseMatrix	adjJ
DenseMatrix	invJ
double	Wght
int	EvalState
int	geom
int	space_dim

Detailed Description

Definition at line 284 of file eltrans.hpp.

Constructor & Destructor Documentation

virtual mfem::IsoparametricTransformation::~IsoparametricTransformation ( )

inlinevirtual

Definition at line 332 of file eltrans.hpp.

Member Function Documentation

void mfem::IsoparametricTransformation::FinalizeTransformation ( )

inline

Definition at line 313 of file eltrans.hpp.

const FiniteElement* mfem::IsoparametricTransformation::GetFE ( ) const

inline

Definition at line 299 of file eltrans.hpp.

DenseMatrix& mfem::IsoparametricTransformation::GetPointMat ( )

inline

Read and write access to the underlying point matrix describing the transformation.

The dimensions of the matrix are space-dim x dof. The transformation is defined as

x=F(xh)=P.phi(xh),

where xh (x hat) is the reference point, x is the corresponding physical point, P is the point matrix, and phi(xh) is the column-vector of all basis functions evaluated at xh. The columns of P represent the control points in physical space defining the transformation.

Definition at line 312 of file eltrans.hpp.

virtual int mfem::IsoparametricTransformation::Order ( )

inlinevirtual

Implements mfem::ElementTransformation.

Definition at line 321 of file eltrans.hpp.

int mfem::IsoparametricTransformation::OrderGrad ( const FiniteElement *  fe )

virtual

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

Implements mfem::ElementTransformation.

Definition at line 442 of file eltrans.cpp.

int mfem::IsoparametricTransformation::OrderJ ( )

virtual

Implements mfem::ElementTransformation.

Definition at line 414 of file eltrans.cpp.

int mfem::IsoparametricTransformation::OrderW ( )

virtual

Implements mfem::ElementTransformation.

Definition at line 428 of file eltrans.cpp.

void mfem::IsoparametricTransformation::SetFE ( const FiniteElement *  FE )

inline

Definition at line 298 of file eltrans.hpp.

void mfem::IsoparametricTransformation::SetIdentityTransformation

(

int

GeomType

)

Definition at line 370 of file eltrans.cpp.

void mfem::IsoparametricTransformation::Transform ( const IntegrationPoint &  ip, Vector &  trans  )

virtual

Implements mfem::ElementTransformation.

Definition at line 461 of file eltrans.cpp.

void mfem::IsoparametricTransformation::Transform ( const IntegrationRule &  ir, DenseMatrix &  tr  )

virtual

Implements mfem::ElementTransformation.

Definition at line 471 of file eltrans.cpp.

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

virtual

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

Implements mfem::ElementTransformation.

Definition at line 497 of file eltrans.cpp.

virtual int mfem::IsoparametricTransformation::TransformBack ( const Vector &  pt, IntegrationPoint &  ip  )

inlinevirtual

Transform a point pt from physical space to a point ip in reference space.

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.

Implements mfem::ElementTransformation.

Definition at line 326 of file eltrans.hpp.

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

• fem/eltrans.hpp
• fem/eltrans.cpp