MFEM
v4.6.0
Finite element discretization library

Vector coefficient defined as a normalized vector field (returns v/v) More...
#include <coefficient.hpp>
Public Member Functions  
NormalizedVectorCoefficient (VectorCoefficient &A, double tol=1e6)  
Return a vector normalized to a length of one. More...  
void  SetTime (double t) 
Set the time for internally stored coefficients. More...  
void  SetACoef (VectorCoefficient &A) 
Reset the vector coefficient. More...  
VectorCoefficient *  GetACoef () const 
Return the vector coefficient. More...  
virtual void  Eval (Vector &V, ElementTransformation &T, const IntegrationPoint &ip) 
Evaluate the coefficient at ip. 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 as a normalized vector field (returns v/v)
Definition at line 1886 of file coefficient.hpp.
mfem::NormalizedVectorCoefficient::NormalizedVectorCoefficient  (  VectorCoefficient &  A, 
double  tol = 1e6 

) 
Return a vector normalized to a length of one.
This class evaluates the vector coefficient A and, if A > tol, returns the normalized vector A / A. If A <= tol, the zero vector is returned.
Definition at line 1132 of file coefficient.cpp.

virtual 
Evaluate the coefficient at ip.
Implements mfem::VectorCoefficient.
Definition at line 1143 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.
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 265 of file coefficient.cpp.

inline 
Return the vector coefficient.
Definition at line 1908 of file coefficient.hpp.

inline 
Reset the vector coefficient.
Definition at line 1906 of file coefficient.hpp.

virtual 
Set the time for internally stored coefficients.
Reimplemented from mfem::VectorCoefficient.
Definition at line 1137 of file coefficient.cpp.