mfem::NormalizedVectorCoefficient Class Reference

Vector coefficient defined as a normalized vector field (returns v/|v|) More...

#include <coefficient.hpp>

Inheritance diagram for mfem::NormalizedVectorCoefficient:

Collaboration diagram for mfem::NormalizedVectorCoefficient:

Public Member Functions
	NormalizedVectorCoefficient (VectorCoefficient &A, real_t tol=1e-6)
	Return a vector normalized to a length of one.
void	SetTime (real_t t)
	Set the time for internally stored coefficients.
void	SetACoef (VectorCoefficient &A)
	Reset the vector coefficient.
VectorCoefficient *	GetACoef () const
	Return the vector coefficient.
virtual void	Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip)
	Evaluate the coefficient at ip.
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.
Public Member Functions inherited from mfem::VectorCoefficient
	VectorCoefficient (int vd)
	Initialize the VectorCoefficient with vector dimension vd.
real_t	GetTime ()
	Get the time for time dependent coefficients.
int	GetVDim ()
	Returns dimension of the vector.
virtual void	Project (QuadratureFunction &qf)
	Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points.
virtual	~VectorCoefficient ()

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

Detailed Description

Vector coefficient defined as a normalized vector field (returns v/|v|)

Definition at line 1886 of file coefficient.hpp.

Constructor & Destructor Documentation

NormalizedVectorCoefficient()

mfem::NormalizedVectorCoefficient::NormalizedVectorCoefficient	(	VectorCoefficient &	A,
		real_t	tol = 1e-6 )

Return a vector normalized to a length of one.

This class evaluates the vector coefficient A and, if |A| > tol, returns the normalized vector A / |A|. If |A| <= tol, the zero vector is returned.

Definition at line 1132 of file coefficient.cpp.

Member Function Documentation

Eval() [1/2]

void mfem::VectorCoefficient::Eval ( DenseMatrix & M, ElementTransformation & T, const IntegrationRule & ir )

virtual

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.

Reimplemented from mfem::VectorCoefficient.

Definition at line 605 of file coefficient.cpp.

Eval() [2/2]

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

virtual

Evaluate the coefficient at ip.

Implements mfem::VectorCoefficient.

Definition at line 1143 of file coefficient.cpp.

GetACoef()

VectorCoefficient * mfem::NormalizedVectorCoefficient::GetACoef ( ) const

inline

Return the vector coefficient.

Definition at line 1908 of file coefficient.hpp.

SetACoef()

void mfem::NormalizedVectorCoefficient::SetACoef ( VectorCoefficient & A )

inline

Reset the vector coefficient.

Definition at line 1906 of file coefficient.hpp.

SetTime()

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

virtual

Set the time for internally stored coefficients.

Reimplemented from mfem::VectorCoefficient.

Definition at line 1137 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