MFEM v4.7.0
Finite element discretization library
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mfem::IdentityMatrixCoefficient Class Reference

Constant matrix coefficient defined as the identity of dimension d. More...

#include <coefficient.hpp>

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

 IdentityMatrixCoefficient (int d)
 Construct with the dimension of the square identity matrix.
 
virtual void Eval (DenseMatrix &M, ElementTransformation &T, const IntegrationPoint &ip)
 Evaluate the matrix coefficient at ip.
 
- Public Member Functions inherited from mfem::MatrixCoefficient
 MatrixCoefficient (int dim, bool symm=false)
 Construct a dim x dim matrix coefficient.
 
 MatrixCoefficient (int h, int w, bool symm=false)
 Construct a h x w matrix coefficient.
 
virtual void SetTime (real_t t)
 Set the time for time dependent coefficients.
 
real_t GetTime ()
 Get the time for time dependent coefficients.
 
int GetHeight () const
 Get the height of the matrix.
 
int GetWidth () const
 Get the width of the matrix.
 
int GetVDim () const
 For backward compatibility get the width of the matrix.
 
bool IsSymmetric () const
 
virtual void Project (QuadratureFunction &qf, bool transpose=false)
 Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. The matrix will be transposed or not according to the boolean argument transpose.
 
virtual void EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip)
 (DEPRECATED) Evaluate a symmetric matrix coefficient.
 
virtual ~MatrixCoefficient ()
 

Additional Inherited Members

- Protected Attributes inherited from mfem::MatrixCoefficient
int height
 
int width
 
real_t time
 
bool symmetric
 

Detailed Description

Constant matrix coefficient defined as the identity of dimension d.

Definition at line 1987 of file coefficient.hpp.

Constructor & Destructor Documentation

◆ IdentityMatrixCoefficient()

mfem::IdentityMatrixCoefficient::IdentityMatrixCoefficient ( int d)
inline

Construct with the dimension of the square identity matrix.

Definition at line 1994 of file coefficient.hpp.

Member Function Documentation

◆ Eval()

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

Evaluate the matrix coefficient at ip.

Implements mfem::MatrixCoefficient.

Definition at line 1205 of file coefficient.cpp.


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