MFEM  v4.5.1
Finite element discretization library
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mfem::TransformedCoefficient Class Reference

A coefficient that depends on 1 or 2 parent coefficients and a transformation rule represented by a C-function. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::TransformedCoefficient:
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Collaboration diagram for mfem::TransformedCoefficient:
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Public Member Functions

 TransformedCoefficient (Coefficient *q, double(*F)(double))
 
 TransformedCoefficient (Coefficient *q1, Coefficient *q2, double(*F)(double, double))
 
void SetTime (double t)
 Set the time for internally stored coefficients. More...
 
virtual double Eval (ElementTransformation &T, const IntegrationPoint &ip)
 Evaluate the coefficient at ip. More...
 
- Public Member Functions inherited from mfem::Coefficient
 Coefficient ()
 
double GetTime ()
 Get the time for time dependent coefficients. More...
 
double Eval (ElementTransformation &T, const IntegrationPoint &ip, double t)
 Evaluate the coefficient in the element described by T at the point ip at time t. More...
 
virtual void Project (QuadratureFunction &qf)
 Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. More...
 
virtual ~Coefficient ()
 

Additional Inherited Members

- Protected Attributes inherited from mfem::Coefficient
double time
 

Detailed Description

A coefficient that depends on 1 or 2 parent coefficients and a transformation rule represented by a C-function.

\( C(x,t) = T(Q1(x,t)) \) or \( C(x,t) = T(Q1(x,t), Q2(x,t)) \)

where T is the transformation rule, and Q1/Q2 are the parent coefficients.

Definition at line 302 of file coefficient.hpp.

Constructor & Destructor Documentation

mfem::TransformedCoefficient::TransformedCoefficient ( Coefficient q,
double(*)(double)  F 
)
inline

Definition at line 311 of file coefficient.hpp.

mfem::TransformedCoefficient::TransformedCoefficient ( Coefficient q1,
Coefficient q2,
double(*)(double, double)  F 
)
inline

Definition at line 313 of file coefficient.hpp.

Member Function Documentation

double mfem::TransformedCoefficient::Eval ( ElementTransformation T,
const IntegrationPoint ip 
)
virtual

Evaluate the coefficient at ip.

Implements mfem::Coefficient.

Definition at line 175 of file coefficient.cpp.

void mfem::TransformedCoefficient::SetTime ( double  t)
virtual

Set the time for internally stored coefficients.

Reimplemented from mfem::Coefficient.

Definition at line 168 of file coefficient.cpp.


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