A piecewise matrix-valued coefficient with the pieces keyed off the element attribute numbers. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::PWMatrixCoefficient:

Collaboration diagram for mfem::PWMatrixCoefficient:

Public Member Functions
	PWMatrixCoefficient (int dim, bool symm=false)
	Constructs a piecewise matrix coefficient of dimension dim by dim. More...

	PWMatrixCoefficient (int h, int w, bool symm=false)
	Constructs a piecewise matrix coefficient of dimension h by w. More...

	PWMatrixCoefficient (int dim, const Array< int > &attr, const Array< MatrixCoefficient * > &coefs, bool symm=false)
	Construct the coefficient using arrays describing the pieces. More...

	PWMatrixCoefficient (int h, int w, const Array< int > &attr, const Array< MatrixCoefficient * > &coefs, bool symm=false)
	Construct the coefficient using arrays describing the pieces. More...

virtual void	SetTime (double t)
	Set the time for time dependent coefficients. More...

void	UpdateCoefficients (const Array< int > &attr, const Array< MatrixCoefficient * > &coefs)
	Replace a set of coefficients. More...

void	UpdateCoefficient (int attr, MatrixCoefficient &coef)
	Replace a single coefficient for a particular attribute. More...

void	ZeroCoefficient (int attr)
	Remove a single MatrixCoefficient for a particular attribute. More...

virtual void	Eval (DenseMatrix &K, ElementTransformation &T, const IntegrationPoint &ip)
	Evaluate the coefficient. More...

Public Member Functions inherited from mfem::MatrixCoefficient
	MatrixCoefficient (int dim, bool symm=false)
	Construct a dim x dim matrix coefficient. More...

	MatrixCoefficient (int h, int w, bool symm=false)
	Construct a h x w matrix coefficient. More...

double	GetTime ()
	Get the time for time dependent coefficients. More...

int	GetHeight () const
	Get the height of the matrix. More...

int	GetWidth () const
	Get the width of the matrix. More...

int	GetVDim () const
	For backward compatibility get the width of the matrix. More...

bool	IsSymmetric () const

virtual void	EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip)
	(DEPRECATED) Evaluate a symmetric matrix coefficient. More...

virtual	~MatrixCoefficient ()

Additional Inherited Members
Protected Attributes inherited from mfem::MatrixCoefficient
int	height

int	width

double	time

bool	symmetric

Detailed Description

A piecewise matrix-valued coefficient with the pieces keyed off the element attribute numbers.

A value of zero will be returned for any missing attribute numbers.

This object will not assume ownership of any MatrixCoefficient objects passed to it. Consequently, the caller must ensure that the individual MatrixCoefficient objects are not deleted while this PWMatrixCoefficient is still in use.

Note: The keys may either be domain attribute numbers or boundary attribute numbers. If the PWMatrixCoefficient is used with a domain integrator the keys are assumed to be domain attribute numbers. Similarly, if the PWMatrixCoefficient is used with a boundary integrator the keys are assumed to be boundary attribute numbers.

Definition at line 966 of file coefficient.hpp.

Constructor & Destructor Documentation

mfem::PWMatrixCoefficient::PWMatrixCoefficient	(	int	dim,
		bool	symm = `false`
	)

inlineexplicit

Constructs a piecewise matrix coefficient of dimension dim by dim.

Definition at line 995 of file coefficient.hpp.

mfem::PWMatrixCoefficient::PWMatrixCoefficient	(	int	h,
		int	w,
		bool	symm = `false`
	)

inlineexplicit

Constructs a piecewise matrix coefficient of dimension h by w.

Definition at line 999 of file coefficient.hpp.

mfem::PWMatrixCoefficient::PWMatrixCoefficient	(	int	dim,
		const Array< int > &	attr,
		const Array< MatrixCoefficient * > &	coefs,
		bool	symm = `false`
	)

inline

Construct the coefficient using arrays describing the pieces.

Parameters

dim	- size of the square matrix-valued result
attr	- an array of attribute numbers for each piece
coefs	- the corresponding array of MatrixCoefficient pointers
symm	- true if the result will be symmetric, false otherwise Any missing attributes or NULL coefficient pointers will result in a zero matrix being returned.

Note: Ownership of the MatrixCoefficient objects will NOT be transferred to this object.

Definition at line 1013 of file coefficient.hpp.

mfem::PWMatrixCoefficient::PWMatrixCoefficient	(	int	h,
		int	w,
		const Array< int > &	attr,
		const Array< MatrixCoefficient * > &	coefs,
		bool	symm = `false`
	)

inline

Construct the coefficient using arrays describing the pieces.

Parameters

h	- height of the matrix-valued result
w	- width of the matrix-valued result
attr	- an array of attribute numbers for each piece
coefs	- the corresponding array of MatrixCoefficient pointers
symm	- true if the result will be symmetric, false otherwise Any missing attributes or NULL coefficient pointers will result in a zero matrix being returned for that attribute.

Note: Ownership of the MatrixCoefficient objects will NOT be transferred to this object.

Definition at line 1030 of file coefficient.hpp.

Member Function Documentation

void mfem::PWMatrixCoefficient::Eval	(	DenseMatrix &	K,
		ElementTransformation &	T,
		const IntegrationPoint &	ip
	)

virtual

Evaluate the coefficient.

Implements mfem::MatrixCoefficient.

Definition at line 568 of file coefficient.cpp.

void mfem::PWMatrixCoefficient::SetTime ( double t )

virtual

Set the time for time dependent coefficients.

Reimplemented from mfem::MatrixCoefficient.

Definition at line 554 of file coefficient.cpp.

void mfem::PWMatrixCoefficient::UpdateCoefficient	(	int	attr,
		MatrixCoefficient &	coef
	)

Replace a single coefficient for a particular attribute.

Definition at line 537 of file coefficient.cpp.

void mfem::PWMatrixCoefficient::UpdateCoefficients	(	const Array< int > &	attr,
		const Array< MatrixCoefficient * > &	coefs
	)

inline

Replace a set of coefficients.

Definition at line 1039 of file coefficient.hpp.

void mfem::PWMatrixCoefficient::ZeroCoefficient ( int attr )

inline

Remove a single MatrixCoefficient for a particular attribute.

Definition at line 1047 of file coefficient.hpp.

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

fem/coefficient.hpp
fem/coefficient.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation