mfem::MatrixArrayVectorCoefficient Class Reference

Matrix coefficient defined row-wise by an array of vector coefficients. Rows that are not set will evaluate to zero. The matrix coefficient is stored as an array indexing the rows of the matrix. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::MatrixArrayVectorCoefficient:

Collaboration diagram for mfem::MatrixArrayVectorCoefficient:

Public Member Functions
	MatrixArrayVectorCoefficient (int dim)
	Construct a coefficient matrix of dimensions dim * dim. The actual coefficients still need to be added with Set().
void	SetTime (real_t t) override
	Set the time for internally stored coefficients.
VectorCoefficient *	GetCoeff (int i)
	Get the vector coefficient located at the i-th row of the matrix.
void	Set (int i, VectorCoefficient *c, bool own=true)
	Set the coefficient located at the i-th row of the matrix. By this will take ownership of the Coefficient passed in, but this can be overridden with the own parameter.
void	SetOwnership (int i, bool own)
	Set ownership of the i'th coefficient.
bool	GetOwnership (int i) const
	Get ownership of the i'th coefficient.
void	Eval (int i, Vector &V, ElementTransformation &T, const IntegrationPoint &ip)
void	Eval (DenseMatrix &K, ElementTransformation &T, const IntegrationPoint &ip) override
	Evaluate the matrix coefficient ip.
virtual	~MatrixArrayVectorCoefficient ()
Public Member Functions inherited from mfem::MatrixCoefficient
	MatrixCoefficient (int dim, bool symm=false)
	Construct a dim x dim matrix coefficient.
	MatrixCoefficient (int h, int w, bool symm=false)
	Construct a h x w matrix coefficient.
real_t	GetTime ()
	Get the time for time dependent coefficients.
int	GetHeight () const
	Get the height of the matrix.
int	GetWidth () const
	Get the width of the matrix.
int	GetVDim () const
	For backward compatibility get the width of the matrix.
bool	IsSymmetric () const
virtual void	Project (QuadratureFunction &qf, bool transpose=false)
	Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. The matrix will be transposed or not according to the boolean argument transpose.
virtual void	EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip)
	(DEPRECATED) Evaluate a symmetric matrix coefficient.
virtual	~MatrixCoefficient ()

Additional Inherited Members
Protected Attributes inherited from mfem::MatrixCoefficient
int	height
int	width
real_t	time
bool	symmetric

Detailed Description

Matrix coefficient defined row-wise by an array of vector coefficients. Rows that are not set will evaluate to zero. The matrix coefficient is stored as an array indexing the rows of the matrix.

Definition at line 1353 of file coefficient.hpp.

Constructor & Destructor Documentation

MatrixArrayVectorCoefficient()

mfem::MatrixArrayVectorCoefficient::MatrixArrayVectorCoefficient ( int dim )

explicit

Construct a coefficient matrix of dimensions dim * dim. The actual coefficients still need to be added with Set().

Definition at line 927 of file coefficient.cpp.

~MatrixArrayVectorCoefficient()

mfem::MatrixArrayVectorCoefficient::~MatrixArrayVectorCoefficient ( )

virtual

Definition at line 958 of file coefficient.cpp.

Member Function Documentation

Eval() [1/2]

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

overridevirtual

Evaluate the matrix coefficient ip.

Implements mfem::MatrixCoefficient.

Definition at line 983 of file coefficient.cpp.

Eval() [2/2]

void mfem::MatrixArrayVectorCoefficient::Eval	(	int	i,
		Vector &	V,
		ElementTransformation &	T,
		const IntegrationPoint &	ip )

Evaluate coefficient located at the i-th row of the matrix using integration point ip.

Definition at line 966 of file coefficient.cpp.

GetCoeff()

VectorCoefficient * mfem::MatrixArrayVectorCoefficient::GetCoeff ( int i )

inline

Get the vector coefficient located at the i-th row of the matrix.

Definition at line 1368 of file coefficient.hpp.

GetOwnership()

bool mfem::MatrixArrayVectorCoefficient::GetOwnership ( int i ) const

inline

Get ownership of the i'th coefficient.

Definition at line 1379 of file coefficient.hpp.

Set()

void mfem::MatrixArrayVectorCoefficient::Set	(	int	i,
		VectorCoefficient *	c,
		bool	own = true )

Set the coefficient located at the i-th row of the matrix. By this will take ownership of the Coefficient passed in, but this can be overridden with the own parameter.

Definition at line 948 of file coefficient.cpp.

SetOwnership()

void mfem::MatrixArrayVectorCoefficient::SetOwnership ( int i, bool own )

inline

Set ownership of the i'th coefficient.

Definition at line 1376 of file coefficient.hpp.

SetTime()

void mfem::MatrixArrayVectorCoefficient::SetTime ( real_t t )

overridevirtual

Set the time for internally stored coefficients.

Reimplemented from mfem::MatrixCoefficient.

Definition at line 939 of file coefficient.cpp.

---

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

• fem/coefficient.hpp
• fem/coefficient.cpp