MFEM  v4.2.0 Finite element discretization library
mfem::OuterProductCoefficient Class Reference

Matrix coefficient defined as the outer product of two vector coefficients. More...

#include <coefficient.hpp>

Inheritance diagram for mfem::OuterProductCoefficient:
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Collaboration diagram for mfem::OuterProductCoefficient:
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## Public Member Functions

OuterProductCoefficient (VectorCoefficient &A, VectorCoefficient &B)
Construct with two vector coefficients. Result is $$A B^T$$. More...

void SetACoef (VectorCoefficient &A)
Reset the first vector in the outer product. More...

VectorCoefficientGetACoef () const
Return the first vector coefficient in the outer product. More...

void SetBCoef (VectorCoefficient &B)
Reset the second vector in the outer product. More...

VectorCoefficientGetBCoef () const
Return the second vector coefficient in the outer product. More...

virtual void Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationPoint &ip)
Evaluate the matrix coefficient at ip. More...

Public Member Functions inherited from mfem::MatrixCoefficient
MatrixCoefficient (int dim, bool symm=false)
Construct a dim x dim matrix coefficient. More...

MatrixCoefficient (int h, int w, bool symm=false)
Construct a h x w matrix coefficient. More...

void SetTime (double t)
Set the time for time dependent coefficients. More...

double GetTime ()
Get the time for time dependent coefficients. More...

int GetHeight () const
Get the height of the matrix. More...

int GetWidth () const
Get the width of the matrix. More...

int GetVDim () const
For backward compatibility get the width of the matrix. More...

bool IsSymmetric () const

virtual void EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip)
Evaluate the upper triangular entries of the matrix coefficient in the symmetric case, similarly to Eval. Matrix entry (i,j) is stored in K[j - i + os_i] for 0 <= i <= j < width, os_0 = 0, os_{i+1} = os_i + width - i. That is, K = {M(0,0), ..., M(0,w-1), M(1,1), ..., M(1,w-1), ..., M(w-1,w-1) with w = width. More...

virtual ~MatrixCoefficient ()

Protected Attributes inherited from mfem::MatrixCoefficient
int height

int width

double time

bool symmetric

## Detailed Description

Matrix coefficient defined as the outer product of two vector coefficients.

Definition at line 1487 of file coefficient.hpp.

## Constructor & Destructor Documentation

 mfem::OuterProductCoefficient::OuterProductCoefficient ( VectorCoefficient & A, VectorCoefficient & B )

Construct with two vector coefficients. Result is $$A B^T$$.

Definition at line 679 of file coefficient.cpp.

## Member Function Documentation

 void mfem::OuterProductCoefficient::Eval ( DenseMatrix & M, ElementTransformation & T, const IntegrationPoint & ip )
virtual

Evaluate the matrix coefficient at ip.

Implements mfem::MatrixCoefficient.

Definition at line 685 of file coefficient.cpp.

 VectorCoefficient* mfem::OuterProductCoefficient::GetACoef ( ) const
inline

Return the first vector coefficient in the outer product.

Definition at line 1503 of file coefficient.hpp.

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

Return the second vector coefficient in the outer product.

Definition at line 1508 of file coefficient.hpp.

 void mfem::OuterProductCoefficient::SetACoef ( VectorCoefficient & A )
inline

Reset the first vector in the outer product.

Definition at line 1501 of file coefficient.hpp.

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

Reset the second vector in the outer product.

Definition at line 1506 of file coefficient.hpp.

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