MFEM v4.8.0
Finite element discretization library
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mfem::ScalarVectorProductCoefficient Class Reference

Vector coefficient defined as a product of scalar and vector coefficients. More...

#include <coefficient.hpp>

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

 ScalarVectorProductCoefficient (real_t A, VectorCoefficient &B)
 Constructor with constant and vector coefficient. Result is A * B.
 
 ScalarVectorProductCoefficient (Coefficient &A, VectorCoefficient &B)
 Constructor with two coefficients. Result is A * B.
 
void SetTime (real_t t) override
 Set the time for internally stored coefficients.
 
void SetAConst (real_t A)
 Reset the scalar factor as a constant.
 
real_t GetAConst () const
 Return the scalar factor.
 
void SetACoef (Coefficient &A)
 Reset the scalar factor.
 
CoefficientGetACoef () const
 Return the scalar factor.
 
void SetBCoef (VectorCoefficient &B)
 Reset the vector factor.
 
VectorCoefficientGetBCoef () const
 Return the vector factor.
 
void Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip) override
 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 product of scalar and vector coefficients.

Definition at line 1936 of file coefficient.hpp.

Constructor & Destructor Documentation

◆ ScalarVectorProductCoefficient() [1/2]

mfem::ScalarVectorProductCoefficient::ScalarVectorProductCoefficient ( real_t A,
VectorCoefficient & B )

Constructor with constant and vector coefficient. Result is A * B.

Definition at line 1195 of file coefficient.cpp.

◆ ScalarVectorProductCoefficient() [2/2]

mfem::ScalarVectorProductCoefficient::ScalarVectorProductCoefficient ( Coefficient & A,
VectorCoefficient & B )

Constructor with two coefficients. Result is A * B.

Definition at line 1201 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::ScalarVectorProductCoefficient::Eval ( Vector & V,
ElementTransformation & T,
const IntegrationPoint & ip )
overridevirtual

Evaluate the coefficient at ip.

Implements mfem::VectorCoefficient.

Definition at line 1214 of file coefficient.cpp.

◆ GetACoef()

Coefficient * mfem::ScalarVectorProductCoefficient::GetACoef ( ) const
inline

Return the scalar factor.

Definition at line 1961 of file coefficient.hpp.

◆ GetAConst()

real_t mfem::ScalarVectorProductCoefficient::GetAConst ( ) const
inline

Return the scalar factor.

Definition at line 1956 of file coefficient.hpp.

◆ GetBCoef()

VectorCoefficient * mfem::ScalarVectorProductCoefficient::GetBCoef ( ) const
inline

Return the vector factor.

Definition at line 1966 of file coefficient.hpp.

◆ SetACoef()

void mfem::ScalarVectorProductCoefficient::SetACoef ( Coefficient & A)
inline

Reset the scalar factor.

Definition at line 1959 of file coefficient.hpp.

◆ SetAConst()

void mfem::ScalarVectorProductCoefficient::SetAConst ( real_t A)
inline

Reset the scalar factor as a constant.

Definition at line 1954 of file coefficient.hpp.

◆ SetBCoef()

void mfem::ScalarVectorProductCoefficient::SetBCoef ( VectorCoefficient & B)
inline

Reset the vector factor.

Definition at line 1964 of file coefficient.hpp.

◆ SetTime()

void mfem::ScalarVectorProductCoefficient::SetTime ( real_t t)
overridevirtual

Set the time for internally stored coefficients.

Reimplemented from mfem::VectorCoefficient.

Definition at line 1207 of file coefficient.cpp.


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