MFEM  v3.3.2
Finite element discretization library
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
mfem::GridFunction Class Reference

Class for grid function - Vector with associated FE space. More...

#include <gridfunc.hpp>

Inheritance diagram for mfem::GridFunction:
[legend]
Collaboration diagram for mfem::GridFunction:
[legend]

Public Types

enum  AvgType { ARITHMETIC, HARMONIC }
 

Public Member Functions

 GridFunction ()
 
 GridFunction (const GridFunction &orig)
 Copy constructor. More...
 
 GridFunction (FiniteElementSpace *f)
 Construct a GridFunction associated with the FiniteElementSpace *f. More...
 
 GridFunction (FiniteElementSpace *f, double *data)
 Construct a GridFunction using previously allocated array data. More...
 
 GridFunction (Mesh *m, std::istream &input)
 Construct a GridFunction on the given Mesh, using the data from input. More...
 
 GridFunction (Mesh *m, GridFunction *gf_array[], int num_pieces)
 
void MakeOwner (FiniteElementCollection *_fec)
 Make the GridFunction the owner of 'fec' and 'fes'. More...
 
FiniteElementCollectionOwnFEC ()
 
int VectorDim () const
 
void GetTrueDofs (Vector &tv) const
 Extract the true-dofs from the GridFunction. If all dofs are true, then tv will be set to point to the data of *this. More...
 
virtual void SetFromTrueDofs (const Vector &tv)
 Set the GridFunction from the given true-dof vector. More...
 
void GetNodalValues (int i, Array< double > &nval, int vdim=1) const
 Returns the values in the vertices of i'th element for dimension vdim. More...
 
virtual double GetValue (int i, const IntegrationPoint &ip, int vdim=1) const
 
void GetVectorValue (int i, const IntegrationPoint &ip, Vector &val) const
 
void GetValues (int i, const IntegrationRule &ir, Vector &vals, int vdim=1) const
 
void GetValues (int i, const IntegrationRule &ir, Vector &vals, DenseMatrix &tr, int vdim=1) const
 
int GetFaceValues (int i, int side, const IntegrationRule &ir, Vector &vals, DenseMatrix &tr, int vdim=1) const
 
void GetVectorValues (ElementTransformation &T, const IntegrationRule &ir, DenseMatrix &vals) const
 
void GetVectorValues (int i, const IntegrationRule &ir, DenseMatrix &vals, DenseMatrix &tr) const
 
int GetFaceVectorValues (int i, int side, const IntegrationRule &ir, DenseMatrix &vals, DenseMatrix &tr) const
 
void GetValuesFrom (GridFunction &)
 
void GetBdrValuesFrom (GridFunction &)
 
void GetVectorFieldValues (int i, const IntegrationRule &ir, DenseMatrix &vals, DenseMatrix &tr, int comp=0) const
 
void ReorderByNodes ()
 For a vector grid function, makes sure that the ordering is byNODES. More...
 
void GetNodalValues (Vector &nval, int vdim=1) const
 Return the values as a vector on mesh vertices for dimension vdim. More...
 
void GetVectorFieldNodalValues (Vector &val, int comp) const
 
void ProjectVectorFieldOn (GridFunction &vec_field, int comp=0)
 
void GetDerivative (int comp, int der_comp, GridFunction &der)
 
double GetDivergence (ElementTransformation &tr)
 
void GetCurl (ElementTransformation &tr, Vector &curl)
 
void GetGradient (ElementTransformation &tr, Vector &grad)
 
void GetGradients (const int elem, const IntegrationRule &ir, DenseMatrix &grad)
 
void GetVectorGradient (ElementTransformation &tr, DenseMatrix &grad)
 
void GetElementAverages (GridFunction &avgs)
 
void ImposeBounds (int i, const Vector &weights, const Vector &_lo, const Vector &_hi)
 
void ImposeBounds (int i, const Vector &weights, double _min=0.0, double _max=std::numeric_limits< double >::infinity())
 
void ProjectGridFunction (const GridFunction &src)
 
virtual void ProjectCoefficient (Coefficient &coeff)
 
void ProjectCoefficient (Coefficient &coeff, Array< int > &dofs, int vd=0)
 
void ProjectCoefficient (VectorCoefficient &vcoeff)
 
void ProjectCoefficient (VectorCoefficient &vcoeff, Array< int > &dofs)
 
void ProjectCoefficient (Coefficient *coeff[])
 
virtual void ProjectDiscCoefficient (VectorCoefficient &coeff)
 Project a discontinuous vector coefficient as a grid function on a continuous finite element space. The values in shared dofs are determined from the element with maximal attribute. More...
 
virtual void ProjectDiscCoefficient (Coefficient &coeff, AvgType type)
 Projects a discontinuous coefficient so that the values in shared vdofs are computed by taking an average of the possible values. More...
 
void ProjectBdrCoefficient (Coefficient &coeff, Array< int > &attr)
 
void ProjectBdrCoefficient (Coefficient *coeff[], Array< int > &attr)
 
void ProjectBdrCoefficientNormal (VectorCoefficient &vcoeff, Array< int > &bdr_attr)
 
void ProjectBdrCoefficientTangent (VectorCoefficient &vcoeff, Array< int > &bdr_attr)
 
virtual double ComputeL2Error (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeL2Error (Coefficient *exsol[], const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeL2Error (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL, Array< int > *elems=NULL) const
 
virtual double ComputeH1Error (Coefficient *exsol, VectorCoefficient *exgrad, Coefficient *ell_coef, double Nu, int norm_type) const
 
virtual double ComputeMaxError (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeMaxError (Coefficient *exsol[], const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeMaxError (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeL1Error (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeW11Error (Coefficient *exsol, VectorCoefficient *exgrad, int norm_type, Array< int > *elems=NULL, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeL1Error (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeLpError (const double p, Coefficient &exsol, Coefficient *weight=NULL, const IntegrationRule *irs[]=NULL) const
 
virtual double ComputeLpError (const double p, VectorCoefficient &exsol, Coefficient *weight=NULL, VectorCoefficient *v_weight=NULL, const IntegrationRule *irs[]=NULL) const
 
virtual void ComputeFlux (BilinearFormIntegrator &blfi, GridFunction &flux, int wcoef=1, int subdomain=-1)
 
GridFunctionoperator= (double value)
 Redefine '=' for GridFunction = constant. More...
 
GridFunctionoperator= (const Vector &v)
 Copy the data from v. More...
 
GridFunctionoperator= (const GridFunction &v)
 Copy the data from v. More...
 
virtual void Update ()
 Transform by the Space UpdateMatrix (e.g., on Mesh change). More...
 
FiniteElementSpaceFESpace ()
 
const FiniteElementSpaceFESpace () const
 
virtual void SetSpace (FiniteElementSpace *f)
 Associate a new FiniteElementSpace with the GridFunction. More...
 
virtual void MakeRef (FiniteElementSpace *f, double *v)
 Make the GridFunction reference external data on a new FiniteElementSpace. More...
 
virtual void MakeRef (FiniteElementSpace *f, Vector &v, int v_offset)
 Make the GridFunction reference external data on a new FiniteElementSpace. More...
 
virtual void Save (std::ostream &out) const
 Save the GridFunction to an output stream. More...
 
void SaveVTK (std::ostream &out, const std::string &field_name, int ref)
 
void SaveSTL (std::ostream &out, int TimesToRefine=1)
 
virtual ~GridFunction ()
 Destroys grid function. 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. Allocates a new data array and copies the data. 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, reading the size from the stream. More...
 
void SetSize (int s)
 Resize the vector to size s. More...
 
void SetData (double *d)
 
void SetDataAndSize (double *d, int s)
 Set the Vector data and size. More...
 
void NewDataAndSize (double *d, int s)
 Set the Vector data and size, deleting the old data, if owned. More...
 
void MakeDataOwner ()
 
void Destroy ()
 Destroy a vector. More...
 
int Size () const
 Returns the size of the vector. More...
 
int Capacity () const
 Return the size of the currently allocated data array. More...
 
double * GetData () const
 
 operator double * ()
 Conversion to double *. More...
 
 operator const double * () const
 Conversion to const double *. More...
 
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)
 Access Vector entries. Index i = 0 .. size-1. More...
 
const double & Elem (int i) const
 Read only access to Vector entries. Index i = 0 .. size-1. More...
 
double & operator() (int i)
 Access Vector entries using () for 0-based indexing. More...
 
const double & operator() (int i) const
 Read only access to Vector entries using () for 0-based indexing. More...
 
double operator* (const double *) const
 Dot product with a double * array. More...
 
double operator* (const Vector &v) const
 Return the inner-product. More...
 
Vectoroperator= (const double *v)
 Copy Size() entries from v. More...
 
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 double value)
 Set the entries listed in dofs to the given value. More...
 
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=mfem::out, 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 DistanceSquaredTo (const double *p) const
 Compute the square of the Euclidean distance to another vector. More...
 
double DistanceTo (const double *p) const
 Compute the Euclidean distance to another vector. More...
 
int CheckFinite () const
 
virtual ~Vector ()
 Destroys vector. More...
 
 Vector (N_Vector nv)
 Construct a wrapper Vector from SUNDIALS N_Vector. More...
 
virtual N_Vector ToNVector ()
 Return a new wrapper SUNDIALS N_Vector of type SUNDIALS_NVEC_SERIAL. More...
 
virtual void ToNVector (N_Vector &nv)
 Update an existing wrapper SUNDIALS N_Vector to point to this Vector. More...
 

Protected Member Functions

void SaveSTLTri (std::ostream &out, double p1[], double p2[], double p3[])
 
void GetVectorGradientHat (ElementTransformation &T, DenseMatrix &gh)
 
void ProjectDeltaCoefficient (DeltaCoefficient &delta_coeff, double &integral)
 
void SumFluxAndCount (BilinearFormIntegrator &blfi, GridFunction &flux, Array< int > &counts, int wcoef, int subdomain)
 
void ProjectDiscCoefficient (VectorCoefficient &coeff, Array< int > &dof_attr)
 
void Destroy ()
 
void AccumulateAndCountZones (Coefficient &coeff, AvgType type, Array< int > &zones_per_vdof)
 Accumulates (depending on type) the values of coeff at all shared vdofs and counts in how many zones each vdof appears. More...
 
void ComputeMeans (AvgType type, Array< int > &zones_per_vdof)
 

Protected Attributes

FiniteElementSpacefes
 FE space on which grid function lives. More...
 
FiniteElementCollectionfec
 Used when the grid function is read from a file. More...
 
long sequence
 
- Protected Attributes inherited from mfem::Vector
int size
 
int allocsize
 
double * data
 

Detailed Description

Class for grid function - Vector with associated FE space.

Definition at line 27 of file gridfunc.hpp.

Member Enumeration Documentation

Enumerator
ARITHMETIC 
HARMONIC 

Definition at line 197 of file gridfunc.hpp.

Constructor & Destructor Documentation

mfem::GridFunction::GridFunction ( )
inline

Definition at line 63 of file gridfunc.hpp.

mfem::GridFunction::GridFunction ( const GridFunction orig)
inline

Copy constructor.

Definition at line 66 of file gridfunc.hpp.

mfem::GridFunction::GridFunction ( FiniteElementSpace f)
inline

Construct a GridFunction associated with the FiniteElementSpace *f.

Definition at line 70 of file gridfunc.hpp.

mfem::GridFunction::GridFunction ( FiniteElementSpace f,
double *  data 
)
inline

Construct a GridFunction using previously allocated array data.

The GridFunction does not assume ownership of data which is assumed to be of size at least f->GetVSize(). Similar to the Vector constructor for externally allocated array, the pointer data can be NULL. The data array can be replaced later using the method SetData().

Definition at line 79 of file gridfunc.hpp.

mfem::GridFunction::GridFunction ( Mesh m,
std::istream &  input 
)

Construct a GridFunction on the given Mesh, using the data from input.

The content of input should be in the format created by the method Save(). The reconstructed FiniteElementSpace and FiniteElementCollection are owned by the GridFunction.

Definition at line 30 of file gridfunc.cpp.

mfem::GridFunction::GridFunction ( Mesh m,
GridFunction gf_array[],
int  num_pieces 
)

Definition at line 60 of file gridfunc.cpp.

virtual mfem::GridFunction::~GridFunction ( )
inlinevirtual

Destroys grid function.

Definition at line 343 of file gridfunc.hpp.

Member Function Documentation

void mfem::GridFunction::AccumulateAndCountZones ( Coefficient coeff,
AvgType  type,
Array< int > &  zones_per_vdof 
)
protected

Accumulates (depending on type) the values of coeff at all shared vdofs and counts in how many zones each vdof appears.

Definition at line 1171 of file gridfunc.cpp.

void mfem::GridFunction::ComputeFlux ( BilinearFormIntegrator blfi,
GridFunction flux,
int  wcoef = 1,
int  subdomain = -1 
)
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 246 of file gridfunc.cpp.

double mfem::GridFunction::ComputeH1Error ( Coefficient exsol,
VectorCoefficient exgrad,
Coefficient ell_coef,
double  Nu,
int  norm_type 
) const
virtual

Definition at line 1767 of file gridfunc.cpp.

virtual double mfem::GridFunction::ComputeL1Error ( Coefficient exsol,
const IntegrationRule irs[] = NULL 
) const
inlinevirtual

Reimplemented in mfem::ParGridFunction.

Definition at line 265 of file gridfunc.hpp.

virtual double mfem::GridFunction::ComputeL1Error ( VectorCoefficient exsol,
const IntegrationRule irs[] = NULL 
) const
inlinevirtual

Reimplemented in mfem::ParGridFunction.

Definition at line 273 of file gridfunc.hpp.

virtual double mfem::GridFunction::ComputeL2Error ( Coefficient exsol,
const IntegrationRule irs[] = NULL 
) const
inlinevirtual

Reimplemented in mfem::ParGridFunction.

Definition at line 233 of file gridfunc.hpp.

double mfem::GridFunction::ComputeL2Error ( Coefficient exsol[],
const IntegrationRule irs[] = NULL 
) const
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 1665 of file gridfunc.cpp.

double mfem::GridFunction::ComputeL2Error ( VectorCoefficient exsol,
const IntegrationRule irs[] = NULL,
Array< int > *  elems = NULL 
) const
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 1722 of file gridfunc.cpp.

double mfem::GridFunction::ComputeLpError ( const double  p,
Coefficient exsol,
Coefficient weight = NULL,
const IntegrationRule irs[] = NULL 
) const
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 2078 of file gridfunc.cpp.

double mfem::GridFunction::ComputeLpError ( const double  p,
VectorCoefficient exsol,
Coefficient weight = NULL,
VectorCoefficient v_weight = NULL,
const IntegrationRule irs[] = NULL 
) const
virtual

When given a vector weight, compute the pointwise (scalar) error as the dot product of the vector error with the vector weight. Otherwise, the scalar error is the l_2 norm of the vector error.

Reimplemented in mfem::ParGridFunction.

Definition at line 2143 of file gridfunc.cpp.

virtual double mfem::GridFunction::ComputeMaxError ( Coefficient exsol,
const IntegrationRule irs[] = NULL 
) const
inlinevirtual

Reimplemented in mfem::ParGridFunction.

Definition at line 248 of file gridfunc.hpp.

double mfem::GridFunction::ComputeMaxError ( Coefficient exsol[],
const IntegrationRule irs[] = NULL 
) const
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 1915 of file gridfunc.cpp.

virtual double mfem::GridFunction::ComputeMaxError ( VectorCoefficient exsol,
const IntegrationRule irs[] = NULL 
) const
inlinevirtual

Reimplemented in mfem::ParGridFunction.

Definition at line 258 of file gridfunc.hpp.

void mfem::GridFunction::ComputeMeans ( AvgType  type,
Array< int > &  zones_per_vdof 
)
protected

Definition at line 1209 of file gridfunc.cpp.

double mfem::GridFunction::ComputeW11Error ( Coefficient exsol,
VectorCoefficient exgrad,
int  norm_type,
Array< int > *  elems = NULL,
const IntegrationRule irs[] = NULL 
) const
virtual

Definition at line 1972 of file gridfunc.cpp.

void mfem::GridFunction::Destroy ( )
protected

Definition at line 136 of file gridfunc.cpp.

FiniteElementSpace* mfem::GridFunction::FESpace ( )
inline

Definition at line 309 of file gridfunc.hpp.

const FiniteElementSpace* mfem::GridFunction::FESpace ( ) const
inline

Definition at line 310 of file gridfunc.hpp.

void mfem::GridFunction::GetBdrValuesFrom ( GridFunction orig_func)

Definition at line 621 of file gridfunc.cpp.

void mfem::GridFunction::GetCurl ( ElementTransformation tr,
Vector curl 
)

Definition at line 913 of file gridfunc.cpp.

void mfem::GridFunction::GetDerivative ( int  comp,
int  der_comp,
GridFunction der 
)

Definition at line 798 of file gridfunc.cpp.

double mfem::GridFunction::GetDivergence ( ElementTransformation tr)

Definition at line 877 of file gridfunc.cpp.

void mfem::GridFunction::GetElementAverages ( GridFunction avgs)

Compute $ (\int_{\Omega} (*this) \psi_i)/(\int_{\Omega} \psi_i) $, where $ \psi_i $ are the basis functions for the FE space of avgs. Both FE spaces should be scalar and on the same mesh.

Definition at line 1024 of file gridfunc.cpp.

int mfem::GridFunction::GetFaceValues ( int  i,
int  side,
const IntegrationRule ir,
Vector vals,
DenseMatrix tr,
int  vdim = 1 
) const

Definition at line 437 of file gridfunc.cpp.

int mfem::GridFunction::GetFaceVectorValues ( int  i,
int  side,
const IntegrationRule ir,
DenseMatrix vals,
DenseMatrix tr 
) const

Definition at line 541 of file gridfunc.cpp.

void mfem::GridFunction::GetGradient ( ElementTransformation tr,
Vector grad 
)

Definition at line 966 of file gridfunc.cpp.

void mfem::GridFunction::GetGradients ( const int  elem,
const IntegrationRule ir,
DenseMatrix grad 
)

Definition at line 985 of file gridfunc.cpp.

void mfem::GridFunction::GetNodalValues ( int  i,
Array< double > &  nval,
int  vdim = 1 
) const

Returns the values in the vertices of i'th element for dimension vdim.

Definition at line 314 of file gridfunc.cpp.

void mfem::GridFunction::GetNodalValues ( Vector nval,
int  vdim = 1 
) const

Return the values as a vector on mesh vertices for dimension vdim.

Definition at line 1145 of file gridfunc.cpp.

void mfem::GridFunction::GetTrueDofs ( Vector tv) const

Extract the true-dofs from the GridFunction. If all dofs are true, then tv will be set to point to the data of *this.

Definition at line 282 of file gridfunc.cpp.

double mfem::GridFunction::GetValue ( int  i,
const IntegrationPoint ip,
int  vdim = 1 
) const
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 355 of file gridfunc.cpp.

void mfem::GridFunction::GetValues ( int  i,
const IntegrationRule ir,
Vector vals,
int  vdim = 1 
) const

Definition at line 404 of file gridfunc.cpp.

void mfem::GridFunction::GetValues ( int  i,
const IntegrationRule ir,
Vector vals,
DenseMatrix tr,
int  vdim = 1 
) const

Definition at line 426 of file gridfunc.cpp.

void mfem::GridFunction::GetValuesFrom ( GridFunction orig_func)

Definition at line 584 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorFieldNodalValues ( Vector val,
int  comp 
) const

Definition at line 727 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorFieldValues ( int  i,
const IntegrationRule ir,
DenseMatrix vals,
DenseMatrix tr,
int  comp = 0 
) const

Definition at line 658 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorGradient ( ElementTransformation tr,
DenseMatrix grad 
)

Definition at line 1010 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorGradientHat ( ElementTransformation T,
DenseMatrix gh 
)
protected

Definition at line 858 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorValue ( int  i,
const IntegrationPoint ip,
Vector val 
) const

Definition at line 370 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorValues ( ElementTransformation T,
const IntegrationRule ir,
DenseMatrix vals 
) const

Definition at line 487 of file gridfunc.cpp.

void mfem::GridFunction::GetVectorValues ( int  i,
const IntegrationRule ir,
DenseMatrix vals,
DenseMatrix tr 
) const

Definition at line 532 of file gridfunc.cpp.

void mfem::GridFunction::ImposeBounds ( int  i,
const Vector weights,
const Vector _lo,
const Vector _hi 
)

Impose the given bounds on the function's DOFs while preserving its local integral (described in terms of the given weights) on the i'th element through SLBPQ optimization. Intended to be used for discontinuous FE functions.

Definition at line 1087 of file gridfunc.cpp.

void mfem::GridFunction::ImposeBounds ( int  i,
const Vector weights,
double  _min = 0.0,
double  _max = std::numeric_limits<double>::infinity() 
)

Definition at line 1114 of file gridfunc.cpp.

void mfem::GridFunction::MakeOwner ( FiniteElementCollection _fec)
inline

Make the GridFunction the owner of 'fec' and 'fes'.

Definition at line 91 of file gridfunc.hpp.

void mfem::GridFunction::MakeRef ( FiniteElementSpace f,
double *  v 
)
virtual

Make the GridFunction reference external data on a new FiniteElementSpace.

This method changes the FiniteElementSpace associated with the GridFunction and sets the pointer v as external data in the GridFunction.

Reimplemented in mfem::ParGridFunction.

Definition at line 181 of file gridfunc.cpp.

void mfem::GridFunction::MakeRef ( FiniteElementSpace f,
Vector v,
int  v_offset 
)
virtual

Make the GridFunction reference external data on a new FiniteElementSpace.

This method changes the FiniteElementSpace associated with the GridFunction and sets the data of the Vector v (plus the v_offset) as external data in the GridFunction.

Note
This version of the method will also perform bounds checks when the build option MFEM_DEBUG is enabled.

Reimplemented in mfem::ParGridFunction.

Definition at line 189 of file gridfunc.cpp.

GridFunction & mfem::GridFunction::operator= ( double  value)

Redefine '=' for GridFunction = constant.

Definition at line 2234 of file gridfunc.cpp.

GridFunction & mfem::GridFunction::operator= ( const Vector v)

Copy the data from v.

The size of v must be equal to the size of the FiniteElementSpace fes.

Definition at line 2243 of file gridfunc.cpp.

GridFunction & mfem::GridFunction::operator= ( const GridFunction v)

Copy the data from v.

The GridFunctions v and *this must have FiniteElementSpaces with the same size.

Definition at line 2254 of file gridfunc.cpp.

FiniteElementCollection* mfem::GridFunction::OwnFEC ( )
inline

Definition at line 93 of file gridfunc.hpp.

void mfem::GridFunction::ProjectBdrCoefficient ( Coefficient coeff,
Array< int > &  attr 
)
inline

Definition at line 213 of file gridfunc.hpp.

void mfem::GridFunction::ProjectBdrCoefficient ( Coefficient coeff[],
Array< int > &  attr 
)

Definition at line 1472 of file gridfunc.cpp.

void mfem::GridFunction::ProjectBdrCoefficientNormal ( VectorCoefficient vcoeff,
Array< int > &  bdr_attr 
)

Project the normal component of the given VectorCoefficient on the boundary. Only boundary attributes that are marked in 'bdr_attr' are projected. Assumes RT-type VectorFE GridFunction.

Definition at line 1549 of file gridfunc.cpp.

void mfem::GridFunction::ProjectBdrCoefficientTangent ( VectorCoefficient vcoeff,
Array< int > &  bdr_attr 
)

Project the tangential components of the given VectorCoefficient on the boundary. Only boundary attributes that are marked in 'bdr_attr' are projected. Assumes ND-type VectorFE GridFunction.

Definition at line 1620 of file gridfunc.cpp.

void mfem::GridFunction::ProjectCoefficient ( Coefficient coeff)
virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 1295 of file gridfunc.cpp.

void mfem::GridFunction::ProjectCoefficient ( Coefficient coeff,
Array< int > &  dofs,
int  vd = 0 
)

Definition at line 1322 of file gridfunc.cpp.

void mfem::GridFunction::ProjectCoefficient ( VectorCoefficient vcoeff)

Definition at line 1346 of file gridfunc.cpp.

void mfem::GridFunction::ProjectCoefficient ( VectorCoefficient vcoeff,
Array< int > &  dofs 
)

Definition at line 1361 of file gridfunc.cpp.

void mfem::GridFunction::ProjectCoefficient ( Coefficient coeff[])

Definition at line 1391 of file gridfunc.cpp.

void mfem::GridFunction::ProjectDeltaCoefficient ( DeltaCoefficient delta_coeff,
double &  integral 
)
protected

Definition at line 1232 of file gridfunc.cpp.

void mfem::GridFunction::ProjectDiscCoefficient ( VectorCoefficient coeff,
Array< int > &  dof_attr 
)
protected

Project a discontinuous vector coefficient in a continuous space and return in dof_attr the maximal attribute of the elements containing each degree of freedom.

Definition at line 1424 of file gridfunc.cpp.

void mfem::GridFunction::ProjectDiscCoefficient ( VectorCoefficient coeff)
virtual

Project a discontinuous vector coefficient as a grid function on a continuous finite element space. The values in shared dofs are determined from the element with maximal attribute.

Reimplemented in mfem::ParGridFunction.

Definition at line 1455 of file gridfunc.cpp.

void mfem::GridFunction::ProjectDiscCoefficient ( Coefficient coeff,
AvgType  type 
)
virtual

Projects a discontinuous coefficient so that the values in shared vdofs are computed by taking an average of the possible values.

Reimplemented in mfem::ParGridFunction.

Definition at line 1461 of file gridfunc.cpp.

void mfem::GridFunction::ProjectGridFunction ( const GridFunction src)

Project the given 'src' GridFunction to 'this' GridFunction, both of which must be on the same mesh. The current implementation assumes that all element use the same projection matrix.

Definition at line 1054 of file gridfunc.cpp.

void mfem::GridFunction::ProjectVectorFieldOn ( GridFunction vec_field,
int  comp = 0 
)

Definition at line 758 of file gridfunc.cpp.

void mfem::GridFunction::ReorderByNodes ( )

For a vector grid function, makes sure that the ordering is byNODES.

Definition at line 700 of file gridfunc.cpp.

void mfem::GridFunction::Save ( std::ostream &  out) const
virtual

Save the GridFunction to an output stream.

Reimplemented in mfem::ParGridFunction.

Definition at line 2259 of file gridfunc.cpp.

void mfem::GridFunction::SaveSTL ( std::ostream &  out,
int  TimesToRefine = 1 
)

Definition at line 2371 of file gridfunc.cpp.

void mfem::GridFunction::SaveSTLTri ( std::ostream &  out,
double  p1[],
double  p2[],
double  p3[] 
)
protected

Definition at line 2351 of file gridfunc.cpp.

void mfem::GridFunction::SaveVTK ( std::ostream &  out,
const std::string &  field_name,
int  ref 
)

Write the GridFunction in VTK format. Note that Mesh::PrintVTK must be called first. The parameter ref > 0 must match the one used in Mesh::PrintVTK.

Definition at line 2274 of file gridfunc.cpp.

void mfem::GridFunction::SetFromTrueDofs ( const Vector tv)
virtual

Set the GridFunction from the given true-dof vector.

Reimplemented in mfem::ParGridFunction.

Definition at line 297 of file gridfunc.cpp.

void mfem::GridFunction::SetSpace ( FiniteElementSpace f)
virtual

Associate a new FiniteElementSpace with the GridFunction.

The GridFunction is resized using the SetSize() method.

Reimplemented in mfem::ParGridFunction.

Definition at line 173 of file gridfunc.cpp.

void mfem::GridFunction::SumFluxAndCount ( BilinearFormIntegrator blfi,
GridFunction flux,
Array< int > &  counts,
int  wcoef,
int  subdomain 
)
protected

Definition at line 199 of file gridfunc.cpp.

void mfem::GridFunction::Update ( )
virtual

Transform by the Space UpdateMatrix (e.g., on Mesh change).

Reimplemented in mfem::ParGridFunction.

Definition at line 146 of file gridfunc.cpp.

int mfem::GridFunction::VectorDim ( ) const

Definition at line 261 of file gridfunc.cpp.

Member Data Documentation

FiniteElementCollection* mfem::GridFunction::fec
protected

Used when the grid function is read from a file.

Definition at line 34 of file gridfunc.hpp.

FiniteElementSpace* mfem::GridFunction::fes
protected

FE space on which grid function lives.

Definition at line 31 of file gridfunc.hpp.

long mfem::GridFunction::sequence
protected

Definition at line 36 of file gridfunc.hpp.


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