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

#include <gridfunc.hpp>

Inheritance diagram for mfem::GridFunction:

Collaboration diagram for mfem::GridFunction:

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...

FiniteElementCollection *	OwnFEC ()

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)

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[])

void	ProjectDiscCoefficient (VectorCoefficient &coeff)

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)

double	ComputeL2Error (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const

double	ComputeL2Error (Coefficient exsol[], const IntegrationRule irs[]=NULL) const

double	ComputeL2Error (VectorCoefficient &exsol, const IntegrationRule irs[]=NULL, Array< int > elems=NULL) const

double	ComputeH1Error (Coefficient exsol, VectorCoefficient exgrad, Coefficient *ell_coef, double Nu, int norm_type) const

double	ComputeMaxError (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const

double	ComputeMaxError (Coefficient exsol[], const IntegrationRule irs[]=NULL) const

double	ComputeMaxError (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL) const

double	ComputeL1Error (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const

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

double	ComputeL1Error (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL) const

double	ComputeLpError (const double p, Coefficient &exsol, Coefficient weight=NULL, const IntegrationRule irs[]=NULL) const

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)

GridFunction &	operator= (double value)
	Redefine '=' for GridFunction = constant. More...

GridFunction &	operator= (const Vector &v)
	Copy the data from v. More...

GridFunction &	operator= (const GridFunction &v)
	Copy the data from v. More...

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

FiniteElementSpace *	FESpace ()

const FiniteElementSpace *	FESpace () const

void	SetSpace (FiniteElementSpace *f)

void	MakeRef (FiniteElementSpace f, double v)
	Make the GridFunction reference external data on a new FiniteElementSpace. More...

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...

Vector &	operator= (const double *v)

Vector &	operator= (const Vector &v)
	Redefine '=' for vector = vector. More...

Vector &	operator= (double value)
	Redefine '=' for vector = constant. More...

Vector &	operator*= (double c)

Vector &	operator/= (double c)

Vector &	operator-= (double c)

Vector &	operator-= (const Vector &v)

Vector &	operator+= (const Vector &v)

Vector &	Add (const double a, const Vector &Va)
	(this) += a Va More...

Vector &	Set (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=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...

	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 ()

Protected Attributes
FiniteElementSpace *	fes
	FE space on which grid function lives. More...

FiniteElementCollection *	fec
	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.

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 29 of file gridfunc.cpp.

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

Definition at line 58 of file gridfunc.cpp.

virtual mfem::GridFunction::~GridFunction ( )

inlinevirtual

Destroys grid function.

Definition at line 325 of file gridfunc.hpp.

Member Function Documentation

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

virtual

Reimplemented in mfem::ParGridFunction.

Definition at line 244 of file gridfunc.cpp.

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

Definition at line 1693 of file gridfunc.cpp.

double mfem::GridFunction::ComputeL1Error	(	Coefficient &	exsol,
		const IntegrationRule *	irs[] = `NULL`
	)		const

inline

Definition at line 249 of file gridfunc.hpp.

double mfem::GridFunction::ComputeL1Error	(	VectorCoefficient &	exsol,
		const IntegrationRule *	irs[] = `NULL`
	)		const

inline

Definition at line 257 of file gridfunc.hpp.

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

inline

Definition at line 217 of file gridfunc.hpp.

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

Definition at line 1591 of file gridfunc.cpp.

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

Definition at line 1648 of file gridfunc.cpp.

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

Definition at line 2004 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

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.

Definition at line 2069 of file gridfunc.cpp.

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

inline

Definition at line 232 of file gridfunc.hpp.

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

Definition at line 1841 of file gridfunc.cpp.

double mfem::GridFunction::ComputeMaxError	(	VectorCoefficient &	exsol,
		const IntegrationRule *	irs[] = `NULL`
	)		const

inline

Definition at line 242 of file gridfunc.hpp.

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

Definition at line 1898 of file gridfunc.cpp.

void mfem::GridFunction::Destroy ( )

protected

Definition at line 134 of file gridfunc.cpp.

FiniteElementSpace* mfem::GridFunction::FESpace ( )

inline

Definition at line 293 of file gridfunc.hpp.

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

inline

Definition at line 294 of file gridfunc.hpp.

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

Definition at line 619 of file gridfunc.cpp.

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

Definition at line 911 of file gridfunc.cpp.

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

Definition at line 796 of file gridfunc.cpp.

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

Definition at line 875 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 1022 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 435 of file gridfunc.cpp.

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

Definition at line 539 of file gridfunc.cpp.

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

Definition at line 964 of file gridfunc.cpp.

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

Definition at line 983 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 312 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 1143 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 280 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 353 of file gridfunc.cpp.

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

Definition at line 402 of file gridfunc.cpp.

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

Definition at line 424 of file gridfunc.cpp.

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

Definition at line 582 of file gridfunc.cpp.

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

Definition at line 725 of file gridfunc.cpp.

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

Definition at line 656 of file gridfunc.cpp.

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

Definition at line 1008 of file gridfunc.cpp.

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

protected

Definition at line 856 of file gridfunc.cpp.

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

Definition at line 368 of file gridfunc.cpp.

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

Definition at line 485 of file gridfunc.cpp.

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

Definition at line 530 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 1085 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 1112 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
	)

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.

Definition at line 179 of file gridfunc.cpp.

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

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.

Definition at line 187 of file gridfunc.cpp.

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

Redefine '=' for GridFunction = constant.

Definition at line 2160 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 2169 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 2180 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 197 of file gridfunc.hpp.

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

Definition at line 1398 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 1475 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 1546 of file gridfunc.cpp.

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

Definition at line 1232 of file gridfunc.cpp.

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

Definition at line 1259 of file gridfunc.cpp.

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

Definition at line 1283 of file gridfunc.cpp.

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

Definition at line 1298 of file gridfunc.cpp.

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

Definition at line 1328 of file gridfunc.cpp.

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

protected

Definition at line 1169 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 1361 of file gridfunc.cpp.

void mfem::GridFunction::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.

Definition at line 1392 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 1052 of file gridfunc.cpp.

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

Definition at line 756 of file gridfunc.cpp.

void mfem::GridFunction::ReorderByNodes ( )

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

Definition at line 698 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 2185 of file gridfunc.cpp.

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

Definition at line 2297 of file gridfunc.cpp.

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

protected

Definition at line 2277 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 2200 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 295 of file gridfunc.cpp.

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

Definition at line 171 of file gridfunc.cpp.

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

protected

Definition at line 197 of file gridfunc.cpp.

void mfem::GridFunction::Update ( )

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

Definition at line 144 of file gridfunc.cpp.

int mfem::GridFunction::VectorDim ( ) const

Definition at line 259 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:

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation