MFEM  v4.0
Finite element discretization library
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mfem::miniapps::DivergenceFreeProjector Class Reference

#include <pfem_extras.hpp>

Inheritance diagram for mfem::miniapps::DivergenceFreeProjector:
Collaboration diagram for mfem::miniapps::DivergenceFreeProjector:

Public Member Functions

 DivergenceFreeProjector (ParFiniteElementSpace &H1FESpace, ParFiniteElementSpace &HCurlFESpace, const int &irOrder, ParBilinearForm *s0=NULL, ParMixedBilinearForm *weakDiv=NULL, ParDiscreteGradOperator *grad=NULL)
virtual ~DivergenceFreeProjector ()
virtual void Mult (const Vector &x, Vector &y) const
 Operator application: y=A(x). More...
void Update ()
- Public Member Functions inherited from mfem::miniapps::IrrotationalProjector
 IrrotationalProjector (ParFiniteElementSpace &H1FESpace, ParFiniteElementSpace &HCurlFESpace, const int &irOrder, ParBilinearForm *s0=NULL, ParMixedBilinearForm *weakDiv=NULL, ParDiscreteGradOperator *grad=NULL)
virtual ~IrrotationalProjector ()
void Update ()
- Public Member Functions inherited from mfem::Operator
 Operator (int s=0)
 Construct a square Operator with given size s (default 0). More...
 Operator (int h, int w)
 Construct an Operator with the given height (output size) and width (input size). More...
int Height () const
 Get the height (size of output) of the Operator. Synonym with NumRows(). More...
int NumRows () const
 Get the number of rows (size of output) of the Operator. Synonym with Height(). More...
int Width () const
 Get the width (size of input) of the Operator. Synonym with NumCols(). More...
int NumCols () const
 Get the number of columns (size of input) of the Operator. Synonym with Width(). More...
virtual MemoryClass GetMemoryClass () const
 Return the MemoryClass preferred by the Operator. More...
virtual void MultTranspose (const Vector &x, Vector &y) const
 Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error. More...
virtual OperatorGetGradient (const Vector &x) const
 Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More...
virtual const OperatorGetProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity. More...
virtual const OperatorGetRestriction () const
 Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More...
void FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B, int copy_interior=0)
 Form a constrained linear system using a matrix-free approach. More...
virtual void RecoverFEMSolution (const Vector &X, const Vector &b, Vector &x)
 Reconstruct a solution vector x (e.g. a GridFunction) from the solution X of a constrained linear system obtained from Operator::FormLinearSystem(). More...
void PrintMatlab (std::ostream &out, int n=0, int m=0) const
 Prints operator with input size n and output size m in Matlab format. More...
virtual ~Operator ()
 Virtual destructor. More...
Type GetType () const
 Return the type ID of the Operator class. More...

Additional Inherited Members

- Public Types inherited from mfem::Operator
enum  Type {
 Enumeration defining IDs for some classes derived from Operator. More...
- Protected Attributes inherited from mfem::Operator
int height
 Dimension of the output / number of rows in the matrix. More...
int width
 Dimension of the input / number of columns in the matrix. More...

Detailed Description

This class computes the divergence free portion of a vector field. This vector field must be discretized using Nedelec basis functions.

Definition at line 167 of file pfem_extras.hpp.

Constructor & Destructor Documentation

mfem::miniapps::DivergenceFreeProjector::DivergenceFreeProjector ( ParFiniteElementSpace H1FESpace,
ParFiniteElementSpace HCurlFESpace,
const int &  irOrder,
ParBilinearForm s0 = NULL,
ParMixedBilinearForm weakDiv = NULL,
ParDiscreteGradOperator grad = NULL 

Definition at line 238 of file pfem_extras.cpp.

mfem::miniapps::DivergenceFreeProjector::~DivergenceFreeProjector ( )

Definition at line 247 of file pfem_extras.cpp.

Member Function Documentation

void mfem::miniapps::DivergenceFreeProjector::Mult ( const Vector x,
Vector y 
) const

Operator application: y=A(x).

Reimplemented from mfem::miniapps::IrrotationalProjector.

Definition at line 251 of file pfem_extras.cpp.

void mfem::miniapps::DivergenceFreeProjector::Update ( )

Definition at line 259 of file pfem_extras.cpp.

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