MFEM
v4.6.0
Finite element discretization library

A matrix coefficient that is constant in space and time. More...
#include <coefficient.hpp>
Public Member Functions  
SymmetricMatrixConstantCoefficient (const DenseSymmetricMatrix &m)  
Construct using matrix m for the constant. More...  
virtual void  Eval (DenseSymmetricMatrix &M, ElementTransformation &T, const IntegrationPoint &ip) 
Evaluate the matrix coefficient at ip. More...  
virtual void  Eval (DenseSymmetricMatrix &K, ElementTransformation &T, const IntegrationPoint &ip)=0 
Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a symmetric matrix K. More...  
virtual void  Eval (DenseMatrix &K, ElementTransformation &T, const IntegrationPoint &ip) 
Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a dense matrix K. More...  
Public Member Functions inherited from mfem::SymmetricMatrixCoefficient  
SymmetricMatrixCoefficient (int dimension)  
Construct a dim x dim matrix coefficient. More...  
int  GetSize () const 
Get the size of the matrix. More...  
virtual void  ProjectSymmetric (QuadratureFunction &qf) 
Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. More...  
virtual void  Eval (DenseMatrix &K, ElementTransformation &T, const IntegrationPoint &ip) 
Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a dense matrix K. More...  
const DenseSymmetricMatrix &  GetMatrix () 
Return a reference to the constant matrix. More...  
virtual  ~SymmetricMatrixCoefficient () 
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...  
virtual 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  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. More...  
virtual void  EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip) 
(DEPRECATED) Evaluate a symmetric matrix coefficient. More...  
virtual  ~MatrixCoefficient () 
Additional Inherited Members  
Protected Attributes inherited from mfem::SymmetricMatrixCoefficient  
DenseSymmetricMatrix  mat 
Internal matrix used when evaluating this coefficient as a DenseMatrix. More...  
Protected Attributes inherited from mfem::MatrixCoefficient  
int  height 
int  width 
double  time 
bool  symmetric 
A matrix coefficient that is constant in space and time.
Definition at line 1475 of file coefficient.hpp.

inline 
Construct using matrix m for the constant.
Definition at line 1482 of file coefficient.hpp.
virtual void mfem::SymmetricMatrixCoefficient::Eval 
Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a symmetric matrix K.
void mfem::SymmetricMatrixCoefficient::Eval 
Evaluate the matrix coefficient in the element described by T at the point ip, storing the result as a dense matrix K.
This function allows the use of SymmetricMatrixCoefficient in situations where the symmetry is not taken advantage of.
Definition at line 828 of file coefficient.cpp.

inlinevirtual 
Evaluate the matrix coefficient at ip.
Implements mfem::SymmetricMatrixCoefficient.
Definition at line 1486 of file coefficient.hpp.