mfem::VectorArrayCoefficient Class Reference

Vector coefficient defined by an array of scalar coefficients. Coefficients that are not set will evaluate to zero in the vector. This object takes ownership of the array of coefficients inside it and deletes them at object destruction. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::VectorArrayCoefficient:

Collaboration diagram for mfem::VectorArrayCoefficient:

Public Member Functions
	VectorArrayCoefficient (int dim)
	Construct vector of dim coefficients. The actual coefficients still need to be added with Set(). More...
void	SetTime (double t)
	Set the time for internally stored coefficients. More...
Coefficient *	GetCoeff (int i)
	Returns i'th coefficient. More...
Coefficient **	GetCoeffs ()
	Returns the entire array of coefficients. More...
void	Set (int i, Coefficient *c, bool own=true)
	Sets coefficient in the vector. More...
double	Eval (int i, ElementTransformation &T, const IntegrationPoint &ip)
virtual void	Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip)
	Evaluate the coefficient. Each element of vector V comes from the associated array of scalar coefficients. More...
virtual	~VectorArrayCoefficient ()
	Destroys vector coefficient. More...
virtual void	Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip)=0
	Evaluate the vector coefficient in the element described by T at the point ip, storing the result in V. More...
virtual void	Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationRule &ir)
	Evaluate the vector coefficient in the element described by T at all points of ir, storing the result in M. More...
Public Member Functions inherited from mfem::VectorCoefficient
	VectorCoefficient (int vd)
	Initialize the VectorCoefficient with vector dimension vd. More...
double	GetTime ()
	Get the time for time dependent coefficients. More...
int	GetVDim ()
	Returns dimension of the vector. More...
virtual void	Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationRule &ir)
	Evaluate the vector coefficient in the element described by T at all points of ir, storing the result in M. More...
virtual void	Project (QuadratureFunction &qf)
	Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. More...
virtual	~VectorCoefficient ()

Additional Inherited Members
Protected Attributes inherited from mfem::VectorCoefficient
int	vdim
double	time

Detailed Description

Vector coefficient defined by an array of scalar coefficients. Coefficients that are not set will evaluate to zero in the vector. This object takes ownership of the array of coefficients inside it and deletes them at object destruction.

Definition at line 778 of file coefficient.hpp.

Constructor & Destructor Documentation

VectorArrayCoefficient()

mfem::VectorArrayCoefficient::VectorArrayCoefficient ( int  dim )

explicit

Construct vector of dim coefficients. The actual coefficients still need to be added with Set().

Definition at line 389 of file coefficient.cpp.

~VectorArrayCoefficient()

mfem::VectorArrayCoefficient::~VectorArrayCoefficient ( )

virtual

Destroys vector coefficient.

Definition at line 415 of file coefficient.cpp.

Member Function Documentation

Eval() [1/4]

double mfem::VectorArrayCoefficient::Eval ( int  i, ElementTransformation &  T, const IntegrationPoint &  ip  )

inline

Evaluates i'th component of the vector of coefficients and returns the value.

Definition at line 803 of file coefficient.hpp.

Eval() [2/4]

void mfem::VectorCoefficient::Eval

Evaluate the vector coefficient in the element described by T at all points of ir, storing the result in M.

The dimensions of M are GetVDim() by ir.GetNPoints() and they must be set by the implementation of this method.

The general implementation provided by the base class (using the Eval method for one IntegrationPoint at a time) can be overloaded for more efficient implementation.

Note

The IntegrationPoint associated with T is not used, and this method will generally modify this IntegrationPoint associated with T.

Definition at line 265 of file coefficient.cpp.

Eval() [3/4]

virtual void mfem::VectorCoefficient::Eval

Evaluate the vector coefficient in the element described by T at the point ip, storing the result in V.

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).

Eval() [4/4]

void mfem::VectorArrayCoefficient::Eval ( Vector &  V, ElementTransformation &  T, const IntegrationPoint &  ip  )

virtual

Evaluate the coefficient. Each element of vector V comes from the associated array of scalar coefficients.

Implements mfem::VectorCoefficient.

Definition at line 423 of file coefficient.cpp.

GetCoeff()

Coefficient* mfem::VectorArrayCoefficient::GetCoeff ( int  i )

inline

Returns i'th coefficient.

Definition at line 793 of file coefficient.hpp.

GetCoeffs()

Coefficient** mfem::VectorArrayCoefficient::GetCoeffs ( )

inline

Returns the entire array of coefficients.

Definition at line 796 of file coefficient.hpp.

Set()

void mfem::VectorArrayCoefficient::Set	(	int	i,
		Coefficient *	c,
		bool	own = true
	)

Sets coefficient in the vector.

Definition at line 408 of file coefficient.cpp.

SetTime()

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

virtual

Set the time for internally stored coefficients.

Reimplemented from mfem::VectorCoefficient.

Definition at line 399 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