A matrix coefficient that is constant in space and time. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::SymmetricMatrixConstantCoefficient:

Collaboration diagram for mfem::SymmetricMatrixConstantCoefficient:

Public Member Functions
	SymmetricMatrixConstantCoefficient (const DenseSymmetricMatrix &m)
	Construct using matrix m for the constant.

virtual void	Eval (DenseSymmetricMatrix &M, ElementTransformation &T, const IntegrationPoint &ip)
	Evaluate the matrix coefficient at ip.

virtual void	Eval (DenseMatrix &K, ElementTransformation &T, const IntegrationPoint &ip)
	Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a dense matrix K.

Public Member Functions inherited from mfem::SymmetricMatrixCoefficient
	SymmetricMatrixCoefficient (int dimension)
	Construct a dim x dim matrix coefficient.

int	GetSize () const
	Get the size of the matrix.

virtual void	ProjectSymmetric (QuadratureFunction &qf)
	Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points.

const DenseSymmetricMatrix &	GetMatrix ()
	Return a reference to the constant matrix.

virtual	~SymmetricMatrixCoefficient ()

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.

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

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::SymmetricMatrixCoefficient
DenseSymmetricMatrix	mat
	Internal matrix used when evaluating this coefficient as a DenseMatrix.

Protected Attributes inherited from mfem::MatrixCoefficient
int	height

int	width

real_t	time

bool	symmetric

Detailed Description

A matrix coefficient that is constant in space and time.

Definition at line 1475 of file coefficient.hpp.

Constructor & Destructor Documentation

◆ SymmetricMatrixConstantCoefficient()

mfem::SymmetricMatrixConstantCoefficient::SymmetricMatrixConstantCoefficient ( const DenseSymmetricMatrix & m )

inline

Construct using matrix m for the constant.

Definition at line 1482 of file coefficient.hpp.

Member Function Documentation

◆ Eval() [1/2]

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

virtual

Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a dense matrix K.

This function allows the use of SymmetricMatrixCoefficient in situations where the symmetry is not taken advantage of.

Note: When this method is called, the caller must make sure that the IntegrationPoint associated with T is the same as ip. This can be achieved by calling T.SetIntPoint(&ip).

Reimplemented from mfem::SymmetricMatrixCoefficient.

Definition at line 1464 of file coefficient.cpp.

◆ Eval() [2/2]

virtual void mfem::SymmetricMatrixConstantCoefficient::Eval	(	DenseSymmetricMatrix &	M,
		ElementTransformation &	T,
		const IntegrationPoint &	ip )

inlinevirtual

Evaluate the matrix coefficient at ip.

Implements mfem::SymmetricMatrixCoefficient.

Definition at line 1486 of file coefficient.hpp.

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

fem/coefficient.hpp