mfem::PWConstCoefficient Class Reference

A piecewise constant coefficient with the constants keyed off the element attribute numbers. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::PWConstCoefficient:

Collaboration diagram for mfem::PWConstCoefficient:

Public Member Functions
	PWConstCoefficient (int NumOfSubD=0)
	Constructs a piecewise constant coefficient in NumOfSubD subdomains.
	PWConstCoefficient (Vector &c)
	Construct the constant coefficient using a vector of constants.
void	UpdateConstants (Vector &c)
	Update the constants with vector c.
real_t &	operator() (int i)
	Return a reference to the i-th constant.
void	operator= (real_t c)
	Set the constants for all attributes to constant c.
int	GetNConst ()
	Returns the number of constants representing different attributes.
real_t	Eval (ElementTransformation &T, const IntegrationPoint &ip) override
	Evaluate the coefficient.
Public Member Functions inherited from mfem::Coefficient
	Coefficient ()
virtual void	SetTime (real_t t)
	Set the time for time dependent coefficients.
real_t	GetTime ()
	Get the time for time dependent coefficients.
real_t	Eval (ElementTransformation &T, const IntegrationPoint &ip, real_t t)
	Evaluate the coefficient in the element described by T at the point ip at time t.
virtual void	Project (QuadratureFunction &qf)
	Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points.
virtual	~Coefficient ()

Additional Inherited Members
Protected Attributes inherited from mfem::Coefficient
real_t	time

Detailed Description

A piecewise constant coefficient with the constants keyed off the element attribute numbers.

Definition at line 103 of file coefficient.hpp.

Constructor & Destructor Documentation

PWConstCoefficient() [1/2]

mfem::PWConstCoefficient::PWConstCoefficient ( int NumOfSubD = 0 )

inlineexplicit

Constructs a piecewise constant coefficient in NumOfSubD subdomains.

Definition at line 111 of file coefficient.hpp.

PWConstCoefficient() [2/2]

mfem::PWConstCoefficient::PWConstCoefficient ( Vector & c )

inline

Construct the constant coefficient using a vector of constants.

c should be a vector defined by attributes, so for region with attribute i c[i-1] is the coefficient in that region

Definition at line 117 of file coefficient.hpp.

Member Function Documentation

Eval()

real_t mfem::PWConstCoefficient::Eval ( ElementTransformation & T, const IntegrationPoint & ip )

overridevirtual

Evaluate the coefficient.

Implements mfem::Coefficient.

Definition at line 76 of file coefficient.cpp.

GetNConst()

int mfem::PWConstCoefficient::GetNConst ( )

inline

Returns the number of constants representing different attributes.

Definition at line 130 of file coefficient.hpp.

operator()()

real_t & mfem::PWConstCoefficient::operator() ( int i )

inline

Return a reference to the i-th constant.

Definition at line 124 of file coefficient.hpp.

operator=()

void mfem::PWConstCoefficient::operator= ( real_t c )

inline

Set the constants for all attributes to constant c.

Definition at line 127 of file coefficient.hpp.

UpdateConstants()

void mfem::PWConstCoefficient::UpdateConstants ( Vector & c )

inline

Update the constants with vector c.

Definition at line 121 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