Abstract finite element space. More...

#include <fespace.hpp>

Inheritance diagram for FiniteElementSpace:

Collaboration diagram for FiniteElementSpace:

Public Member Functions
	FiniteElementSpace (Mesh m, const FiniteElementCollection f, int dim=1, int order=Ordering::byNODES)
Mesh *	GetMesh () const
	Returns the mesh.
NURBSExtension *	GetNURBSext ()
int	GetVDim () const
	Returns vector dimension.
int	GetOrder (int i) const
	Returns the order of the i'th finite element.
int	GetNDofs () const
	Returns number of degrees of freedom.
int	GetVSize () const
int	GetOrdering () const
	Return the ordering method.
const FiniteElementCollection *	FEColl () const
int	GetNVDofs () const
int	GetNEDofs () const
int	GetNFDofs () const
int	GetNE () const
	Returns number of elements in the mesh.
int	GetNV () const
	Returns number of nodes in the mesh.
int	GetNBE () const
	Returns number of boundary elements in the mesh.
int	GetElementType (int i) const
	Returns the type of element i.
void	GetElementVertices (int i, Array< int > &vertices) const
	Returns the vertices of element i.
int	GetBdrElementType (int i) const
	Returns the type of boundary element i.
ElementTransformation *	GetElementTransformation (int i) const
	Returns ElementTransformation for the i'th element.
void	GetElementTransformation (int i, IsoparametricTransformation *ElTr)
ElementTransformation *	GetBdrElementTransformation (int i) const
	Returns ElementTransformation for the i'th boundary element.
int	GetAttribute (int i)
int	GetBdrAttribute (int i)
virtual void	GetElementDofs (int i, Array< int > &dofs) const
	Returns indexes of degrees of freedom in array dofs for i'th element.
virtual void	GetBdrElementDofs (int i, Array< int > &dofs) const
	Returns indexes of degrees of freedom for i'th boundary element.
void	GetFaceDofs (int i, Array< int > &dofs) const
void	GetEdgeDofs (int i, Array< int > &dofs) const
void	GetElementInteriorDofs (int i, Array< int > &dofs) const
void	GetEdgeInteriorDofs (int i, Array< int > &dofs) const
void	DofsToVDofs (Array< int > &dofs) const
void	DofsToVDofs (int vd, Array< int > &dofs) const
int	DofToVDof (int dof, int vd) const
int	VDofToDof (int vdof) const
void	GetElementVDofs (int i, Array< int > &dofs) const
	Returns indexes of degrees of freedom in array dofs for i'th element.
void	GetBdrElementVDofs (int i, Array< int > &dofs) const
	Returns indexes of degrees of freedom for i'th boundary element.
void	GetFaceVDofs (int iF, Array< int > &dofs) const
	Returns indexes of degrees of freedom for i'th face element.
void	GetEdgeVDofs (int iE, Array< int > &dofs) const
	Returns indexes of degrees of freedom for i'th edge.
void	GetElementInteriorVDofs (int i, Array< int > &vdofs) const
void	GetEdgeInteriorVDofs (int i, Array< int > &vdofs) const
void	BuildElementToDofTable ()
void	BuildDofToArrays ()
const Table &	GetElementToDofTable () const
int	GetElementForDof (int i)
int	GetLocalDofForDof (int i)
const FiniteElement *	GetFE (int i) const
	Returns pointer to the FiniteElement associated with i'th element.
const FiniteElement *	GetBE (int i) const
	Returns pointer to the FiniteElement for the i'th boundary element.
SparseMatrix *	GlobalRestrictionMatrix (FiniteElementSpace *cfes, int one_vdim=-1)
virtual void	GetEssentialVDofs (Array< int > &bdr_attr_is_ess, Array< int > &ess_dofs)
	Determine the boundary degrees of freedom.
void	EliminateEssentialBCFromGRM (FiniteElementSpace cfes, Array< int > &bdr_attr_is_ess, SparseMatrix R)
SparseMatrix *	GlobalRestrictionMatrix (FiniteElementSpace *cfes, Array< int > &bdr_attr_is_ess, int one_vdim=-1)
	Generate the global restriction matrix with eliminated essential bc.
SparseMatrix *	D2C_GlobalRestrictionMatrix (FiniteElementSpace *cfes)
SparseMatrix *	D2Const_GlobalRestrictionMatrix (FiniteElementSpace *cfes)
SparseMatrix *	H2L_GlobalRestrictionMatrix (FiniteElementSpace *lfes)
virtual void	Update ()
virtual FiniteElementSpace *	SaveUpdate ()
	Return a copy of the current FE space and update.
void	Save (ostream &out) const
virtual	~FiniteElementSpace ()
Static Public Member Functions
static void	AdjustVDofs (Array< int > &vdofs)
Protected Member Functions
void	UpdateNURBS ()
void	Constructor ()
void	Destructor ()
	FiniteElementSpace (FiniteElementSpace &)
void	ConstructRefinementData (int k, int cdofs, RefinementType type)
	Constructs new refinement data using coarse element k as a template.
DenseMatrix *	LocalInterpolation (int k, int cdofs, RefinementType type, Array< int > &rows)
	Generates the local interpolation matrix for coarse element k.
Protected Attributes
Mesh *	mesh
	The mesh that FE space lives on.
int	vdim
	Vector dimension (number of unknowns per degree of freedom).
int	ndofs
	Number of degrees of freedom. Number of unknowns are ndofs*vdim.
int	ordering
const FiniteElementCollection *	fec
int	nvdofs
int	nedofs
int	nfdofs
int	nbdofs
int *	fdofs
int *	bdofs
Array< RefinementData * >	RefData
	Collection of currently known refinement data.
Table *	elem_dof
Table *	bdrElem_dof
Array< int >	dof_elem_array
Array< int >	dof_ldof_array
NURBSExtension *	NURBSext
int	own_ext

Detailed Description

Abstract finite element space.

Definition at line 52 of file fespace.hpp.

Constructor & Destructor Documentation

FiniteElementSpace::FiniteElementSpace ( FiniteElementSpace & fes ) [protected]

Definition at line 420 of file fespace.cpp.

References bdofs, bdrElem_dof, dof_elem_array, dof_ldof_array, elem_dof, fdofs, fec, mesh, nbdofs, ndofs, nedofs, nfdofs, NURBSext, nvdofs, ordering, own_ext, Swap(), and vdim.

Referenced by SaveUpdate().

FiniteElementSpace::FiniteElementSpace	(	Mesh *	m,
		const FiniteElementCollection *	f,
		int	dim = `1`,
		int	order = `Ordering::byNODES`
	)

Definition at line 448 of file fespace.cpp.

References Constructor(), fec, NURBSExtension::GetOrder(), NURBSFECollection::GetOrder(), mesh, mfem_error(), NURBSext, Mesh::NURBSext, ordering, own_ext, UpdateNURBS(), and vdim.

FiniteElementSpace::~FiniteElementSpace ( ) [virtual]

Definition at line 799 of file fespace.cpp.

References Destructor(), RefData, and Array< T >::Size().

Member Function Documentation

void FiniteElementSpace::AdjustVDofs ( Array< int > & vdofs ) [static]

Definition at line 101 of file fespace.cpp.

References Array< T >::Size().

void FiniteElementSpace::BuildDofToArrays ( )

Definition at line 173 of file fespace.cpp.

References BuildElementToDofTable(), dof_elem_array, dof_ldof_array, elem_dof, GetNE(), mesh, ndofs, Array< T >::SetSize(), and Array< T >::Size().

void FiniteElementSpace::BuildElementToDofTable ( )

Definition at line 150 of file fespace.cpp.

References elem_dof, GetElementDofs(), GetNE(), mesh, and Array< T >::Size().

Referenced by BuildDofToArrays().

void FiniteElementSpace::Constructor ( ) [protected]

Definition at line 508 of file fespace.cpp.

References bdofs, bdrElem_dof, Mesh::Dimension(), FiniteElementCollection::DofForGeometry(), elem_dof, fdofs, fec, Mesh::GetElementBaseGeometry(), Mesh::GetFaceBaseGeometry(), Mesh::GetNE(), Mesh::GetNEdges(), Mesh::GetNFaces(), Mesh::GetNV(), mesh, nbdofs, ndofs, nedofs, nfdofs, nvdofs, Geometry::POINT, and Geometry::SEGMENT.

Referenced by FiniteElementSpace(), SaveUpdate(), and Update().

void FiniteElementSpace::ConstructRefinementData	(	int	k,
		int	cdofs,
		RefinementType	type
	)		`[protected]`

Constructs new refinement data using coarse element k as a template.

Definition at line 846 of file fespace.cpp.

References Array< T >::Append(), fec, Mesh::GetElementBaseGeometry(), GetElementDofs(), RefinementData::I, mesh, nedofs, RefData, Array< T >::Size(), and Array< T >::Union().

SparseMatrix * FiniteElementSpace::D2C_GlobalRestrictionMatrix ( FiniteElementSpace * cfes )

Generate the global restriction matrix from a discontinuous FE space to the continuous FE space of the same polynomial degree.

Definition at line 325 of file fespace.cpp.

References GetElementVDofs(), GetNE(), GetVSize(), mesh, mfem_error(), and Array< T >::Size().

SparseMatrix * FiniteElementSpace::D2Const_GlobalRestrictionMatrix ( FiniteElementSpace * cfes )

Generate the global restriction matrix from a discontinuous FE space to the piecewise constant FE space.

Definition at line 353 of file fespace.cpp.

References GetElementDofs(), GetNDofs(), GetNE(), mesh, mfem_error(), ndofs, and Array< T >::Size().

void FiniteElementSpace::Destructor ( ) [protected]

Definition at line 807 of file fespace.cpp.

References bdofs, bdrElem_dof, Array< T >::DeleteAll(), dof_elem_array, dof_ldof_array, elem_dof, fdofs, NURBSext, and own_ext.

Referenced by Update(), and ~FiniteElementSpace().

void FiniteElementSpace::DofsToVDofs	(	int	vd,
		Array< int > &	dofs
	)		const

Definition at line 55 of file fespace.cpp.

References Ordering::byNODES, ndofs, ordering, Array< T >::Size(), and vdim.

void FiniteElementSpace::DofsToVDofs ( Array< int > & dofs ) const

Definition at line 24 of file fespace.cpp.

References Ordering::byNODES, Ordering::byVDIM, ndofs, ordering, Array< T >::SetSize(), Array< T >::Size(), and vdim.

Referenced by GetBdrElementVDofs(), GetEdgeInteriorVDofs(), GetEdgeVDofs(), GetElementInteriorVDofs(), GetElementVDofs(), GetFaceVDofs(), GridFunction::GetValue(), Mesh::Load(), and Mesh::PrintVTK().

int FiniteElementSpace::DofToVDof	(	int	dof,
		int	vd
	)		const

Definition at line 83 of file fespace.cpp.

References Ordering::byNODES, ndofs, ordering, and vdim.

Referenced by GridFunction::ProjectCoefficient().

void FiniteElementSpace::EliminateEssentialBCFromGRM	(	FiniteElementSpace *	cfes,
		Array< int > &	bdr_attr_is_ess,
		SparseMatrix *	R
	)

Definition at line 288 of file fespace.cpp.

References Array< T >::Size(), and Mesh::TWO_LEVEL_COARSE.

const FiniteElementCollection* FiniteElementSpace::FEColl ( ) const [inline]

Definition at line 123 of file fespace.hpp.

References fec.

Referenced by GridFunction::GridFunction(), Mesh::Load(), and Mesh::PrintVTK().

int FiniteElementSpace::GetAttribute ( int i ) [inline]

Definition at line 163 of file fespace.hpp.

References GetAttribute(), and mesh.

Referenced by GetAttribute(), GridFunction::GetFaceValues(), GridFunction::GetFaceVectorValues(), and ZZErrorEstimator().

int FiniteElementSpace::GetBdrAttribute ( int i ) [inline]

Definition at line 165 of file fespace.hpp.

References GetBdrAttribute(), and mesh.

Referenced by GetBdrAttribute(), GetEssentialVDofs(), GridFunction::ProjectBdrCoefficient(), GridFunction::ProjectBdrCoefficientNormal(), and GridFunction::ProjectBdrCoefficientTangent().

void FiniteElementSpace::GetBdrElementDofs	(	int	i,
		Array< int > &	dofs
	)		const `[virtual]`

Returns indexes of degrees of freedom for i'th boundary element.

Reimplemented in ParFiniteElementSpace.

Definition at line 644 of file fespace.cpp.

References bdrElem_dof, Mesh::Dimension(), FiniteElementCollection::DofForGeometry(), FiniteElementCollection::DofOrderForOrientation(), fdofs, fec, Mesh::GetBdrElementBaseGeometry(), Mesh::GetBdrElementEdges(), Mesh::GetBdrElementFace(), Mesh::GetBdrElementVertices(), Table::GetRow(), mesh, nedofs, nvdofs, Geometry::POINT, Geometry::SEGMENT, Array< T >::SetSize(), and Array< T >::Size().

Referenced by GetBdrElementVDofs(), GridFunction::ProjectBdrCoefficientNormal(), and GridFunction::ProjectBdrCoefficientTangent().

ElementTransformation* FiniteElementSpace::GetBdrElementTransformation ( int i ) const [inline]

Returns ElementTransformation for the i'th boundary element.

Definition at line 160 of file fespace.hpp.

References GetBdrElementTransformation(), and mesh.

Referenced by GetBdrElementTransformation(), GridFunction::ProjectBdrCoefficient(), GridFunction::ProjectBdrCoefficientNormal(), and GridFunction::ProjectBdrCoefficientTangent().

int FiniteElementSpace::GetBdrElementType ( int i ) const [inline]

Returns the type of boundary element i.

Definition at line 147 of file fespace.hpp.

References GetBdrElementType(), and mesh.

Referenced by GetBdrElementType().

void FiniteElementSpace::GetBdrElementVDofs	(	int	i,
		Array< int > &	dofs
	)		const

Returns indexes of degrees of freedom for i'th boundary element.

Definition at line 118 of file fespace.cpp.

References DofsToVDofs(), and GetBdrElementDofs().

Referenced by Mesh::GetBdrElementTransformation(), GridFunction::GetBdrValuesFrom(), GetEssentialVDofs(), and GridFunction::ProjectBdrCoefficient().

const FiniteElement * FiniteElementSpace::GetBE ( int i ) const

Returns pointer to the FiniteElement for the i'th boundary element.

Definition at line 778 of file fespace.cpp.

References Mesh::Dimension(), fec, FiniteElementCollection::FiniteElementForGeometry(), Mesh::GetBdrElementBaseGeometry(), NURBSExtension::LoadBE(), mesh, NURBSext, Geometry::POINT, and Geometry::SEGMENT.

Referenced by LinearForm::Assemble(), BilinearForm::Assemble(), Mesh::GetBdrElementTransformation(), GridFunction::GetBdrValuesFrom(), GridFunction::ProjectBdrCoefficient(), GridFunction::ProjectBdrCoefficientNormal(), and GridFunction::ProjectBdrCoefficientTangent().

void FiniteElementSpace::GetEdgeDofs	(	int	i,
		Array< int > &	dofs
	)		const

Returns the indexes of the degrees of freedom for i'th edge including the dofs for the vertices of the edge.

Definition at line 737 of file fespace.cpp.

References FiniteElementCollection::DofForGeometry(), fec, Mesh::GetEdgeVertices(), mesh, nvdofs, Geometry::POINT, Geometry::SEGMENT, and Array< T >::SetSize().

Referenced by GetEdgeVDofs().

void FiniteElementSpace::GetEdgeInteriorDofs	(	int	i,
		Array< int > &	dofs
	)		const

Definition at line 768 of file fespace.cpp.

References fec, nvdofs, Geometry::SEGMENT, and Array< T >::SetSize().

Referenced by GetEdgeInteriorVDofs().

void FiniteElementSpace::GetEdgeInteriorVDofs	(	int	i,
		Array< int > &	vdofs
	)		const

Definition at line 143 of file fespace.cpp.

References DofsToVDofs(), and GetEdgeInteriorDofs().

void FiniteElementSpace::GetEdgeVDofs	(	int	iE,
		Array< int > &	dofs
	)		const

Returns indexes of degrees of freedom for i'th edge.

Definition at line 130 of file fespace.cpp.

References DofsToVDofs(), and GetEdgeDofs().

void FiniteElementSpace::GetElementDofs	(	int	i,
		Array< int > &	dofs
	)		const `[virtual]`

Returns indexes of degrees of freedom in array dofs for i'th element.

Reimplemented in ParFiniteElementSpace.

Definition at line 558 of file fespace.cpp.

References bdofs, Mesh::Dimension(), FiniteElementCollection::DofForGeometry(), FiniteElementCollection::DofOrderForOrientation(), elem_dof, fdofs, fec, Mesh::GetElementBaseGeometry(), Mesh::GetElementEdges(), Mesh::GetElementFaces(), Mesh::GetElementVertices(), Mesh::GetFaceBaseGeometry(), FiniteElementCollection::HasFaceDofs(), mesh, nedofs, nfdofs, nvdofs, Geometry::POINT, Geometry::SEGMENT, Array< T >::SetSize(), and Array< T >::Size().

Referenced by BuildElementToDofTable(), ConstructRefinementData(), D2Const_GlobalRestrictionMatrix(), GridFunction::GetDerivative(), GridFunction::GetDivergence(), GridFunction::GetElementAverages(), GetElementVDofs(), GridFunction::GetGradients(), GridFunction::GetValue(), H2L_GlobalRestrictionMatrix(), Mesh::Load(), and Mesh::PrintVTK().

int FiniteElementSpace::GetElementForDof ( int i ) [inline]

Definition at line 218 of file fespace.hpp.

References dof_elem_array.

Referenced by GridFunction::ProjectCoefficient().

void FiniteElementSpace::GetElementInteriorDofs	(	int	i,
		Array< int > &	dofs
	)		const

Definition at line 756 of file fespace.cpp.

References bdofs, fec, mesh, nedofs, nfdofs, nvdofs, and Array< T >::SetSize().

Referenced by GetElementInteriorVDofs().

void FiniteElementSpace::GetElementInteriorVDofs	(	int	i,
		Array< int > &	vdofs
	)		const

Definition at line 136 of file fespace.cpp.

References DofsToVDofs(), and GetElementInteriorDofs().

const Table& FiniteElementSpace::GetElementToDofTable ( ) const [inline]

Definition at line 216 of file fespace.hpp.

References elem_dof.

ElementTransformation* FiniteElementSpace::GetElementTransformation ( int i ) const [inline]

void FiniteElementSpace::GetElementTransformation	(	int	i,
		IsoparametricTransformation *	ElTr
	)		`[inline]`

Returns the transformation defining the i-th element in the user-defined variable.

Definition at line 156 of file fespace.hpp.

References Mesh::GetElementTransformation(), and mesh.

int FiniteElementSpace::GetElementType ( int i ) const [inline]

Returns the type of element i.

Definition at line 139 of file fespace.hpp.

References GetElementType(), and mesh.

Referenced by GetElementType().

void FiniteElementSpace::GetElementVDofs	(	int	i,
		Array< int > &	dofs
	)		const

Returns indexes of degrees of freedom in array dofs for i'th element.

Definition at line 112 of file fespace.cpp.

References DofsToVDofs(), and GetElementDofs().

void FiniteElementSpace::GetElementVertices	(	int	i,
		Array< int > &	vertices
	)		const `[inline]`

Returns the vertices of element i.

Definition at line 143 of file fespace.hpp.

References GetElementVertices(), and mesh.

Referenced by GetElementVertices(), GridFunction::GetNodalValues(), and GridFunction::GetVectorFieldNodalValues().

void FiniteElementSpace::GetEssentialVDofs	(	Array< int > &	bdr_attr_is_ess,
		Array< int > &	ess_dofs
	)		`[virtual]`

Determine the boundary degrees of freedom.

Reimplemented in ParFiniteElementSpace.

Definition at line 266 of file fespace.cpp.

References GetBdrAttribute(), GetBdrElementVDofs(), GetNBE(), GetVSize(), Array< T >::SetSize(), and Array< T >::Size().

void FiniteElementSpace::GetFaceDofs	(	int	i,
		Array< int > &	dofs
	)		const

Returns the indexes of the degrees of freedom for i'th face including the dofs for the edges and the vertices of the face.

Definition at line 707 of file fespace.cpp.

References FiniteElementCollection::DofForGeometry(), fdofs, fec, Mesh::GetFaceEdges(), Mesh::GetFaceVertices(), mesh, nedofs, nvdofs, Geometry::POINT, Geometry::SEGMENT, Array< T >::SetSize(), and Array< T >::Size().

Referenced by GetFaceVDofs().

void FiniteElementSpace::GetFaceVDofs	(	int	iF,
		Array< int > &	dofs
	)		const

Returns indexes of degrees of freedom for i'th face element.

Definition at line 124 of file fespace.cpp.

References DofsToVDofs(), and GetFaceDofs().

const FiniteElement * FiniteElementSpace::GetFE ( int i ) const

Returns pointer to the FiniteElement associated with i'th element.

Definition at line 633 of file fespace.cpp.

References fec, FiniteElementCollection::FiniteElementForGeometry(), Mesh::GetElementBaseGeometry(), NURBSExtension::LoadFE(), mesh, and NURBSext.

int FiniteElementSpace::GetLocalDofForDof ( int i ) [inline]

Definition at line 219 of file fespace.hpp.

References dof_ldof_array.

Referenced by GridFunction::ProjectCoefficient().

Mesh* FiniteElementSpace::GetMesh ( ) const [inline]

Returns the mesh.

Definition at line 105 of file fespace.hpp.

References mesh.

Referenced by GridFunction::ComputeH1Error(), GridFunction::ComputeW11Error(), GridFunction::GetFaceValues(), GridFunction::GetFaceVectorValues(), NURBSExtension::MergeGridFunctions(), GridFunction::ProjectCoefficient(), GridFunction::SaveSTL(), and GridFunction::SaveVTK().

int FiniteElementSpace::GetNBE ( ) const [inline]

Returns number of boundary elements in the mesh.

Definition at line 136 of file fespace.hpp.

References GetNBE(), and mesh.

Referenced by GridFunction::GetBdrValuesFrom(), GetEssentialVDofs(), GetNBE(), GridFunction::ProjectBdrCoefficient(), GridFunction::ProjectBdrCoefficientNormal(), and GridFunction::ProjectBdrCoefficientTangent().

int FiniteElementSpace::GetNDofs ( ) const [inline]

Returns number of degrees of freedom.

Definition at line 116 of file fespace.hpp.

References ndofs.

Referenced by D2Const_GlobalRestrictionMatrix(), GridFunction::GridFunction(), H2L_GlobalRestrictionMatrix(), Mesh::PrintVTK(), and GridFunction::ReorderByNodes().

int FiniteElementSpace::GetNE ( ) const [inline]

Returns number of elements in the mesh.

Definition at line 130 of file fespace.hpp.

References GetNE(), and mesh.

Referenced by DiscreteLinearOperator::Assemble(), BuildDofToArrays(), BuildElementToDofTable(), BilinearForm::ComputeElementMatrices(), ComputeFlux(), GridFunction::ComputeL1Error(), GridFunction::ComputeL2Error(), GridFunction::ComputeMaxError(), D2C_GlobalRestrictionMatrix(), D2Const_GlobalRestrictionMatrix(), GridFunction::GetDerivative(), GridFunction::GetElementAverages(), GetNE(), GridFunction::GetNodalValues(), GridFunction::GetValuesFrom(), GridFunction::GetVectorFieldNodalValues(), H2L_GlobalRestrictionMatrix(), GridFunction::ProjectCoefficient(), GridFunction::ProjectVectorFieldOn(), and ZZErrorEstimator().

int FiniteElementSpace::GetNEDofs ( ) const [inline]

Definition at line 126 of file fespace.hpp.

References nedofs.

Referenced by GridFunction::GridFunction().

int FiniteElementSpace::GetNFDofs ( ) const [inline]

Definition at line 127 of file fespace.hpp.

References nfdofs.

Referenced by GridFunction::GridFunction().

NURBSExtension* FiniteElementSpace::GetNURBSext ( ) [inline]

Definition at line 107 of file fespace.hpp.

References NURBSext.

int FiniteElementSpace::GetNV ( ) const [inline]

Returns number of nodes in the mesh.

Definition at line 133 of file fespace.hpp.

References GetNV(), and mesh.

Referenced by GridFunction::GetNodalValues(), GetNV(), and GridFunction::GetVectorFieldNodalValues().

int FiniteElementSpace::GetNVDofs ( ) const [inline]

Definition at line 125 of file fespace.hpp.

References nvdofs.

Referenced by GridFunction::GridFunction().

int FiniteElementSpace::GetOrder ( int i ) const

Returns the order of the i'th finite element.

Definition at line 17 of file fespace.cpp.

References fec, FiniteElementCollection::FiniteElementForGeometry(), Mesh::GetElementBaseGeometry(), FiniteElement::GetOrder(), and mesh.

int FiniteElementSpace::GetOrdering ( ) const [inline]

Return the ordering method.

Definition at line 121 of file fespace.hpp.

References ordering.

Referenced by MixedBilinearForm::GetBlocks(), GridFunction::GridFunction(), GridFunction::ReorderByNodes(), and GridFunction::Save().

int FiniteElementSpace::GetVDim ( ) const [inline]

Returns vector dimension.

Definition at line 110 of file fespace.hpp.

References vdim.

Referenced by BilinearForm::ComputeElementMatrices(), GridFunction::ComputeL2Error(), GridFunction::ComputeMaxError(), GridFunction::GetBdrValuesFrom(), MixedBilinearForm::GetBlocks(), GridFunction::GetValuesFrom(), GridFunction::GetVectorValue(), GridFunction::GetVectorValues(), GridFunction::GridFunction(), GridFunction::ProjectBdrCoefficient(), GridFunction::ProjectCoefficient(), GridFunction::ReorderByNodes(), GridFunction::Save(), and GridFunction::VectorDim().

int FiniteElementSpace::GetVSize ( ) const [inline]

Definition at line 118 of file fespace.hpp.

References ndofs, and vdim.

Referenced by D2C_GlobalRestrictionMatrix(), GridFunction::GetDerivative(), GetEssentialVDofs(), GridFunction::GridFunction(), main(), MixedBilinearForm::MixedBilinearForm(), GridFunction::ProjectVectorFieldOn(), GridFunction::Update(), MixedBilinearForm::Update(), and BilinearForm::Update().

SparseMatrix * FiniteElementSpace::GlobalRestrictionMatrix	(	FiniteElementSpace *	cfes,
		Array< int > &	bdr_attr_is_ess,
		int	one_vdim = `-1`
	)

Generate the global restriction matrix with eliminated essential bc.

Definition at line 314 of file fespace.cpp.

SparseMatrix * FiniteElementSpace::GlobalRestrictionMatrix	(	FiniteElementSpace *	cfes,
		int	one_vdim = `-1`
	)

Return the restriction matrix from this FE space to the coarse FE space 'cfes'. Both FE spaces must use the same FE collection and be defined on the same Mesh which must be in TWO_LEVEL_* state. When vdim > 1, 'one_vdim' specifies whether the restriction matrix built should be the scalar restriction (one_vdim=1) or the full vector restriction (one_vdim=0); if one_vdim=-1 then the behavior depends on the ordering of this FE space: if ordering=byNodes then the scalar restriction matrix is built and if ordering=byVDim -- the full vector restriction matrix.

Definition at line 224 of file fespace.cpp.

References Ordering::byNODES, Array< T >::GetSubArray(), Array< T >::Size(), Mesh::TWO_LEVEL_COARSE, and Mesh::TWO_LEVEL_FINE.

Referenced by Mesh::UpdateNodes().

SparseMatrix * FiniteElementSpace::H2L_GlobalRestrictionMatrix ( FiniteElementSpace * lfes )

Construct the restriction matrix from the FE space given by (*this) to the lower degree FE space given by (*lfes) which is defined on the same mesh.

Definition at line 382 of file fespace.cpp.

References GetElementDofs(), GetFE(), GetNDofs(), GetNE(), mesh, ndofs, DenseMatrix::SetSize(), Vector::SetSize(), and Vector::Size().