MFEM  v3.1
Finite element discretization library
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mfem::LinearForm Class Reference

Class for linear form - Vector with associated FE space and LFIntegrators. More...

#include <linearform.hpp>

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

 LinearForm (FiniteElementSpace *f)
 Creates linear form associated with FE space *f. More...
 
 LinearForm ()
 
FiniteElementSpaceGetFES ()
 
void AddDomainIntegrator (LinearFormIntegrator *lfi)
 Adds new Domain Integrator. More...
 
void AddBoundaryIntegrator (LinearFormIntegrator *lfi)
 Adds new Boundary Integrator. More...
 
void AddBdrFaceIntegrator (LinearFormIntegrator *lfi)
 Adds new Boundary Face Integrator. More...
 
void Assemble ()
 Assembles the linear form i.e. sums over all domain/bdr integrators. More...
 
void ConformingAssemble (Vector &b) const
 Apply the conforming interpolation matrix and return 'b': b = P'*this. More...
 
void ConformingAssemble ()
 Apply the conforming interpolation matrix to 'this': this = P'*this. More...
 
void Update ()
 
void Update (FiniteElementSpace *f)
 
void Update (FiniteElementSpace *f, Vector &v, int v_offset)
 
 ~LinearForm ()
 Destroys linear form. More...
 
- Public Member Functions inherited from mfem::Vector
 Vector ()
 Default constructor for Vector. Sets size = 0 and data = NULL. More...
 
 Vector (const Vector &)
 Copy constructor. More...
 
 Vector (int s)
 Creates vector of size s. More...
 
 Vector (double *_data, int _size)
 Creates a vector referencing an array of doubles, owned by someone else. More...
 
void Load (std::istream **in, int np, int *dim)
 Reads a vector from multiple files. More...
 
void Load (std::istream &in, int Size)
 Load a vector from an input stream. More...
 
void Load (std::istream &in)
 Load a vector from an input stream. More...
 
void SetSize (int s)
 Resizes the vector if the new size is different. More...
 
void SetData (double *d)
 
void SetDataAndSize (double *d, int s)
 
void NewDataAndSize (double *d, int s)
 
void MakeDataOwner ()
 
void Destroy ()
 Destroy a vector. More...
 
int Size () const
 Returns the size of the vector. More...
 
double * GetData () const
 
 operator double * ()
 
 operator const double * () const
 
bool OwnsData () const
 
void StealData (double **p)
 Changes the ownership of the data; after the call the Vector is empty. More...
 
double * StealData ()
 Changes the ownership of the data; after the call the Vector is empty. More...
 
double & Elem (int i)
 Sets value in vector. Index i = 0 .. size-1. More...
 
const double & Elem (int i) const
 Sets value in vector. Index i = 0 .. size-1. More...
 
double & operator() (int i)
 Sets value in vector. Index i = 0 .. size-1. More...
 
const double & operator() (int i) const
 Sets value in vector. Index i = 0 .. size-1. More...
 
double operator* (const double *) const
 
double operator* (const Vector &v) const
 Return the inner-product. More...
 
Vectoroperator= (const double *v)
 
Vectoroperator= (const Vector &v)
 Redefine '=' for vector = vector. More...
 
Vectoroperator= (double value)
 Redefine '=' for vector = constant. More...
 
Vectoroperator*= (double c)
 
Vectoroperator/= (double c)
 
Vectoroperator-= (double c)
 
Vectoroperator-= (const Vector &v)
 
Vectoroperator+= (const Vector &v)
 
VectorAdd (const double a, const Vector &Va)
 (*this) += a * Va More...
 
VectorSet (const double a, const Vector &x)
 (*this) = a * x More...
 
void SetVector (const Vector &v, int offset)
 
void Neg ()
 (*this) = -(*this) More...
 
void Swap (Vector &other)
 Swap the contents of two Vectors. More...
 
void median (const Vector &lo, const Vector &hi)
 v = median(v,lo,hi) entrywise. Implementation assumes lo <= hi. More...
 
void GetSubVector (const Array< int > &dofs, Vector &elemvect) const
 
void GetSubVector (const Array< int > &dofs, double *elem_data) const
 
void SetSubVector (const Array< int > &dofs, const Vector &elemvect)
 
void SetSubVector (const Array< int > &dofs, double *elem_data)
 
void AddElementVector (const Array< int > &dofs, const Vector &elemvect)
 Add (element) subvector to the vector. More...
 
void AddElementVector (const Array< int > &dofs, double *elem_data)
 
void AddElementVector (const Array< int > &dofs, const double a, const Vector &elemvect)
 
void SetSubVectorComplement (const Array< int > &dofs, const double val)
 Set all vector entries NOT in the 'dofs' array to the given 'val'. More...
 
void Print (std::ostream &out=std::cout, int width=8) const
 Prints vector to stream out. More...
 
void Print_HYPRE (std::ostream &out) const
 Prints vector to stream out in HYPRE_Vector format. More...
 
void Randomize (int seed=0)
 Set random values in the vector. More...
 
double Norml2 () const
 Returns the l2 norm of the vector. More...
 
double Normlinf () const
 Returns the l_infinity norm of the vector. More...
 
double Norml1 () const
 Returns the l_1 norm of the vector. More...
 
double Normlp (double p) const
 Returns the l_p norm of the vector. More...
 
double Max () const
 Returns the maximal element of the vector. More...
 
double Min () const
 Returns the minimal element of the vector. More...
 
double Sum () const
 Return the sum of the vector entries. More...
 
double DistanceTo (const double *p) const
 Compute the Euclidean distance to another vector. More...
 
int CheckFinite () const
 
virtual ~Vector ()
 Destroys vector. More...
 

Additional Inherited Members

- Protected Attributes inherited from mfem::Vector
int size
 
int allocsize
 
double * data
 

Detailed Description

Class for linear form - Vector with associated FE space and LFIntegrators.

Definition at line 23 of file linearform.hpp.

Constructor & Destructor Documentation

mfem::LinearForm::LinearForm ( FiniteElementSpace f)
inline

Creates linear form associated with FE space *f.

Definition at line 40 of file linearform.hpp.

mfem::LinearForm::LinearForm ( )
inline

Definition at line 43 of file linearform.hpp.

mfem::LinearForm::~LinearForm ( )

Destroys linear form.

Definition at line 118 of file linearform.cpp.

Member Function Documentation

void mfem::LinearForm::AddBdrFaceIntegrator ( LinearFormIntegrator lfi)

Adds new Boundary Face Integrator.

Definition at line 29 of file linearform.cpp.

void mfem::LinearForm::AddBoundaryIntegrator ( LinearFormIntegrator lfi)

Adds new Boundary Integrator.

Definition at line 24 of file linearform.cpp.

void mfem::LinearForm::AddDomainIntegrator ( LinearFormIntegrator lfi)

Adds new Domain Integrator.

Definition at line 19 of file linearform.cpp.

void mfem::LinearForm::Assemble ( )

Assembles the linear form i.e. sums over all domain/bdr integrators.

Definition at line 34 of file linearform.cpp.

void mfem::LinearForm::ConformingAssemble ( Vector b) const

Apply the conforming interpolation matrix and return 'b': b = P'*this.

Definition at line 89 of file linearform.cpp.

void mfem::LinearForm::ConformingAssemble ( )

Apply the conforming interpolation matrix to 'this': this = P'*this.

Definition at line 102 of file linearform.cpp.

FiniteElementSpace* mfem::LinearForm::GetFES ( )
inline

Definition at line 45 of file linearform.hpp.

void mfem::LinearForm::Update ( )
inline

Definition at line 65 of file linearform.hpp.

void mfem::LinearForm::Update ( FiniteElementSpace f)
inline

Definition at line 67 of file linearform.hpp.

void mfem::LinearForm::Update ( FiniteElementSpace f,
Vector v,
int  v_offset 
)

Definition at line 112 of file linearform.cpp.


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