MFEM
v4.5.2
Finite element discretization library

Vector coefficient defined by an array of scalar coefficients. Coefficients that are not set will evaluate to zero in the vector. This object takes ownership of the array of coefficients inside it and deletes them at object destruction. More...
#include <coefficient.hpp>
Public Member Functions  
VectorArrayCoefficient (int dim)  
Construct vector of dim coefficients. The actual coefficients still need to be added with Set(). More...  
void  SetTime (double t) 
Set the time for internally stored coefficients. More...  
Coefficient *  GetCoeff (int i) 
Returns i'th coefficient. More...  
Coefficient **  GetCoeffs () 
Returns the entire array of coefficients. More...  
void  Set (int i, Coefficient *c, bool own=true) 
Sets coefficient in the vector. More...  
double  Eval (int i, ElementTransformation &T, const IntegrationPoint &ip) 
virtual void  Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip) 
Evaluate the coefficient. Each element of vector V comes from the associated array of scalar coefficients. More...  
virtual  ~VectorArrayCoefficient () 
Destroys vector coefficient. More...  
virtual void  Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip)=0 
Evaluate the vector coefficient in the element described by T at the point ip, storing the result in V. More...  
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. More...  
Public Member Functions inherited from mfem::VectorCoefficient  
VectorCoefficient (int vd)  
Initialize the VectorCoefficient with vector dimension vd. More...  
double  GetTime () 
Get the time for time dependent coefficients. More...  
int  GetVDim () 
Returns dimension of the vector. More...  
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. More...  
virtual void  Project (QuadratureFunction &qf) 
Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. More...  
virtual  ~VectorCoefficient () 
Additional Inherited Members  
Protected Attributes inherited from mfem::VectorCoefficient  
int  vdim 
double  time 
Vector coefficient defined by an array of scalar coefficients. Coefficients that are not set will evaluate to zero in the vector. This object takes ownership of the array of coefficients inside it and deletes them at object destruction.
Definition at line 644 of file coefficient.hpp.

explicit 
Construct vector of dim coefficients. The actual coefficients still need to be added with Set().
Definition at line 339 of file coefficient.cpp.

virtual 
Destroys vector coefficient.
Definition at line 365 of file coefficient.cpp.

inline 
Evaluates i'th component of the vector of coefficients and returns the value.
Definition at line 669 of file coefficient.hpp.
void mfem::VectorCoefficient::Eval 
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.
Definition at line 222 of file coefficient.cpp.
virtual void mfem::VectorCoefficient::Eval 
Evaluate the vector coefficient in the element described by T at the point ip, storing the result in V.

virtual 
Evaluate the coefficient. Each element of vector V comes from the associated array of scalar coefficients.
Implements mfem::VectorCoefficient.
Definition at line 373 of file coefficient.cpp.

inline 
Returns i'th coefficient.
Definition at line 659 of file coefficient.hpp.

inline 
Returns the entire array of coefficients.
Definition at line 662 of file coefficient.hpp.
void mfem::VectorArrayCoefficient::Set  (  int  i, 
Coefficient *  c,  
bool  own = true 

) 
Sets coefficient in the vector.
Definition at line 358 of file coefficient.cpp.

virtual 
Set the time for internally stored coefficients.
Reimplemented from mfem::VectorCoefficient.
Definition at line 349 of file coefficient.cpp.