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, double _alpha=1.0, double _beta=1.0)
	Construct with the two coefficients. Result is _alpha * A + _beta * B. More...
void	SetACoef (MatrixCoefficient &A)
	Reset the first matrix coefficient. More...
MatrixCoefficient *	GetACoef () const
	Return the first matrix coefficient. More...
void	SetBCoef (MatrixCoefficient &B)
	Reset the second matrix coefficient. More...
MatrixCoefficient *	GetBCoef () const
	Return the second matrix coefficient. More...
void	SetAlpha (double _alpha)
	Reset the factor in front of the first matrix coefficient. More...
double	GetAlpha () const
	Return the factor in front of the first matrix coefficient. More...
void	SetBeta (double _beta)
	Reset the factor in front of the second matrix coefficient. More...
double	GetBeta () const
	Return the factor in front of the second matrix coefficient. More...
virtual void	Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationPoint &ip)
	Evaluate the matrix coefficient at ip. 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...
void	SetTime (double t)
	Set the time for time dependent coefficients. 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)
	Evaluate the upper triangular entries of the matrix coefficient in the symmetric case, similarly to Eval. Matrix entry (i,j) is stored in K[j - i + os_i] for 0 <= i <= j < width, os_0 = 0, os_{i+1} = os_i + width - i. That is, K = {M(0,0), ..., M(0,w-1), M(1,1), ..., M(1,w-1), ..., M(w-1,w-1) with w = width. More...
virtual	~MatrixCoefficient ()

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

Detailed Description

Matrix coefficient defined as the linear combination of two matrices.

Definition at line 1369 of file coefficient.hpp.

Constructor & Destructor Documentation

mfem::MatrixSumCoefficient::MatrixSumCoefficient	(	MatrixCoefficient &	A,
		MatrixCoefficient &	B,
		double	_alpha = 1.0,
		double	_beta = 1.0
	)

Construct with the two coefficients. Result is _alpha * A + _beta * B.

Definition at line 609 of file coefficient.cpp.

Member Function Documentation

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

virtual

Evaluate the matrix coefficient at ip.

Implements mfem::MatrixCoefficient.

Definition at line 621 of file coefficient.cpp.

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

inline

Return the first matrix coefficient.

Definition at line 1388 of file coefficient.hpp.

double mfem::MatrixSumCoefficient::GetAlpha ( ) const

inline

Return the factor in front of the first matrix coefficient.

Definition at line 1398 of file coefficient.hpp.

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

inline

Return the second matrix coefficient.

Definition at line 1393 of file coefficient.hpp.

double mfem::MatrixSumCoefficient::GetBeta ( ) const

inline

Return the factor in front of the second matrix coefficient.

Definition at line 1403 of file coefficient.hpp.

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

inline

Reset the first matrix coefficient.

Definition at line 1386 of file coefficient.hpp.

void mfem::MatrixSumCoefficient::SetAlpha ( double  _alpha )

inline

Reset the factor in front of the first matrix coefficient.

Definition at line 1396 of file coefficient.hpp.

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

inline

Reset the second matrix coefficient.

Definition at line 1391 of file coefficient.hpp.

void mfem::MatrixSumCoefficient::SetBeta ( double  _beta )

inline

Reset the factor in front of the second matrix coefficient.

Definition at line 1401 of file coefficient.hpp.

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

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