mfem::MatrixSumCoefficient Class Reference

Matrix coefficient defined as the linear combination of two matrices. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::MatrixSumCoefficient:

Collaboration diagram for mfem::MatrixSumCoefficient:

Public Member Functions
	MatrixSumCoefficient (MatrixCoefficient &A, MatrixCoefficient &B, real_t alpha_=1.0, real_t beta_=1.0)
	Construct with the two coefficients. Result is alpha_ * A + beta_ * B.
void	SetTime (real_t t) override
	Set the time for internally stored coefficients.
void	SetACoef (MatrixCoefficient &A)
	Reset the first matrix coefficient.
MatrixCoefficient *	GetACoef () const
	Return the first matrix coefficient.
void	SetBCoef (MatrixCoefficient &B)
	Reset the second matrix coefficient.
MatrixCoefficient *	GetBCoef () const
	Return the second matrix coefficient.
void	SetAlpha (real_t alpha_)
	Reset the factor in front of the first matrix coefficient.
real_t	GetAlpha () const
	Return the factor in front of the first matrix coefficient.
void	SetBeta (real_t beta_)
	Reset the factor in front of the second matrix coefficient.
real_t	GetBeta () const
	Return the factor in front of the second matrix coefficient.
void	Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationPoint &ip) override
	Evaluate the matrix coefficient at ip.
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 as the linear combination of two matrices.

Definition at line 2092 of file coefficient.hpp.

Constructor & Destructor Documentation

MatrixSumCoefficient()

mfem::MatrixSumCoefficient::MatrixSumCoefficient	(	MatrixCoefficient &	A,
		MatrixCoefficient &	B,
		real_t	alpha_ = 1.0,
		real_t	beta_ = 1.0 )

Construct with the two coefficients. Result is alpha_ * A + beta_ * B.

Definition at line 1303 of file coefficient.cpp.

Member Function Documentation

Eval()

void mfem::MatrixSumCoefficient::Eval ( DenseMatrix & M, ElementTransformation & T, const IntegrationPoint & ip )

overridevirtual

Evaluate the matrix coefficient at ip.

Implements mfem::MatrixCoefficient.

Definition at line 1322 of file coefficient.cpp.

GetACoef()

MatrixCoefficient * mfem::MatrixSumCoefficient::GetACoef ( ) const

inline

Return the first matrix coefficient.

Definition at line 2114 of file coefficient.hpp.

GetAlpha()

real_t mfem::MatrixSumCoefficient::GetAlpha ( ) const

inline

Return the factor in front of the first matrix coefficient.

Definition at line 2124 of file coefficient.hpp.

GetBCoef()

MatrixCoefficient * mfem::MatrixSumCoefficient::GetBCoef ( ) const

inline

Return the second matrix coefficient.

Definition at line 2119 of file coefficient.hpp.

GetBeta()

real_t mfem::MatrixSumCoefficient::GetBeta ( ) const

inline

Return the factor in front of the second matrix coefficient.

Definition at line 2129 of file coefficient.hpp.

SetACoef()

void mfem::MatrixSumCoefficient::SetACoef ( MatrixCoefficient & A )

inline

Reset the first matrix coefficient.

Definition at line 2112 of file coefficient.hpp.

SetAlpha()

void mfem::MatrixSumCoefficient::SetAlpha ( real_t alpha_ )

inline

Reset the factor in front of the first matrix coefficient.

Definition at line 2122 of file coefficient.hpp.

SetBCoef()

void mfem::MatrixSumCoefficient::SetBCoef ( MatrixCoefficient & B )

inline

Reset the second matrix coefficient.

Definition at line 2117 of file coefficient.hpp.

SetBeta()

void mfem::MatrixSumCoefficient::SetBeta ( real_t beta_ )

inline

Reset the factor in front of the second matrix coefficient.

Definition at line 2127 of file coefficient.hpp.

SetTime()

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

overridevirtual

Set the time for internally stored coefficients.

Reimplemented from mfem::MatrixCoefficient.

Definition at line 1315 of file coefficient.cpp.

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

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