MFEM
v3.4
Finite element discretization library
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#include <fem_extras.hpp>
Public Member Functions | |
H1_FESpace (Mesh *m, const int p, const int space_dim=3, const int type=BasisType::GaussLobatto, int vdim=1, int order=Ordering::byNODES) | |
~H1_FESpace () | |
Public Member Functions inherited from mfem::FiniteElementSpace | |
FiniteElementSpace () | |
Default constructor: the object is invalid until initialized using the method Load(). More... | |
FiniteElementSpace (const FiniteElementSpace &orig, Mesh *mesh=NULL, const FiniteElementCollection *fec=NULL) | |
Copy constructor: deep copy all data from orig except the Mesh, the FiniteElementCollection, ans some derived data. More... | |
FiniteElementSpace (Mesh *mesh, const FiniteElementCollection *fec, int vdim=1, int ordering=Ordering::byNODES) | |
FiniteElementSpace (Mesh *mesh, NURBSExtension *ext, const FiniteElementCollection *fec, int vdim=1, int ordering=Ordering::byNODES) | |
Construct a NURBS FE space based on the given NURBSExtension, ext. More... | |
Mesh * | GetMesh () const |
Returns the mesh. More... | |
const NURBSExtension * | GetNURBSext () const |
NURBSExtension * | GetNURBSext () |
NURBSExtension * | StealNURBSext () |
bool | Conforming () const |
bool | Nonconforming () const |
const SparseMatrix * | GetConformingProlongation () const |
const SparseMatrix * | GetConformingRestriction () const |
virtual const Operator * | GetProlongationMatrix () const |
virtual const SparseMatrix * | GetRestrictionMatrix () const |
int | GetVDim () const |
Returns vector dimension. More... | |
int | GetOrder (int i) const |
Returns the order of the i'th finite element. More... | |
int | GetFaceOrder (int i) const |
Returns the order of the i'th face finite element. More... | |
int | GetNDofs () const |
Returns number of degrees of freedom. More... | |
int | GetVSize () const |
Return the number of vector dofs, i.e. GetNDofs() x GetVDim(). More... | |
virtual int | GetTrueVSize () const |
Return the number of vector true (conforming) dofs. More... | |
int | GetNConformingDofs () const |
int | GetConformingVSize () const |
Ordering::Type | GetOrdering () const |
Return the ordering method. More... | |
const FiniteElementCollection * | FEColl () const |
int | GetNVDofs () const |
int | GetNEDofs () const |
int | GetNFDofs () const |
int | GetNV () const |
Returns number of vertices in the mesh. More... | |
int | GetNE () const |
Returns number of elements in the mesh. More... | |
int | GetNF () const |
Returns number of faces (i.e. co-dimension 1 entities) in the mesh. More... | |
int | GetNBE () const |
Returns number of boundary elements in the mesh. More... | |
int | GetElementType (int i) const |
Returns the type of element i. More... | |
void | GetElementVertices (int i, Array< int > &vertices) const |
Returns the vertices of element i. More... | |
int | GetBdrElementType (int i) const |
Returns the type of boundary element i. More... | |
ElementTransformation * | GetElementTransformation (int i) const |
Returns ElementTransformation for the i-th element. More... | |
void | GetElementTransformation (int i, IsoparametricTransformation *ElTr) |
Returns the transformation defining the i-th element in the user-defined variable ElTr. More... | |
ElementTransformation * | GetBdrElementTransformation (int i) const |
Returns ElementTransformation for the i-th boundary element. More... | |
int | GetAttribute (int i) const |
int | GetBdrAttribute (int i) const |
virtual void | GetElementDofs (int i, Array< int > &dofs) const |
Returns indexes of degrees of freedom in array dofs for i'th element. More... | |
virtual void | GetBdrElementDofs (int i, Array< int > &dofs) const |
Returns indexes of degrees of freedom for i'th boundary element. More... | |
virtual void | GetFaceDofs (int i, Array< int > &dofs) const |
void | GetEdgeDofs (int i, Array< int > &dofs) const |
void | GetVertexDofs (int i, Array< int > &dofs) const |
void | GetElementInteriorDofs (int i, Array< int > &dofs) const |
void | GetFaceInteriorDofs (int i, Array< int > &dofs) const |
int | GetNumElementInteriorDofs (int i) const |
void | GetEdgeInteriorDofs (int i, Array< int > &dofs) const |
void | DofsToVDofs (Array< int > &dofs, int ndofs=-1) const |
void | DofsToVDofs (int vd, Array< int > &dofs, int ndofs=-1) const |
int | DofToVDof (int dof, int vd, int ndofs=-1) const |
int | VDofToDof (int vdof) const |
void | GetElementVDofs (int i, Array< int > &vdofs) const |
Returns indexes of degrees of freedom in array dofs for i'th element. More... | |
void | GetBdrElementVDofs (int i, Array< int > &vdofs) const |
Returns indexes of degrees of freedom for i'th boundary element. More... | |
void | GetFaceVDofs (int i, Array< int > &vdofs) const |
Returns indexes of degrees of freedom for i'th face element (2D and 3D). More... | |
void | GetEdgeVDofs (int i, Array< int > &vdofs) const |
Returns indexes of degrees of freedom for i'th edge. More... | |
void | GetVertexVDofs (int i, Array< int > &vdofs) const |
void | GetElementInteriorVDofs (int i, Array< int > &vdofs) const |
void | GetEdgeInteriorVDofs (int i, Array< int > &vdofs) const |
void | RebuildElementToDofTable () |
void | ReorderElementToDofTable () |
Reorder the scalar DOFs based on the element ordering. More... | |
void | BuildDofToArrays () |
const Table & | GetElementToDofTable () const |
const Table & | GetBdrElementToDofTable () const |
int | GetElementForDof (int i) const |
int | GetLocalDofForDof (int i) const |
const FiniteElement * | GetFE (int i) const |
Returns pointer to the FiniteElement associated with i'th element. More... | |
const FiniteElement * | GetBE (int i) const |
Returns pointer to the FiniteElement for the i'th boundary element. More... | |
const FiniteElement * | GetFaceElement (int i) const |
const FiniteElement * | GetEdgeElement (int i) const |
const FiniteElement * | GetTraceElement (int i, int geom_type) const |
Return the trace element from element 'i' to the given 'geom_type'. More... | |
virtual void | GetEssentialVDofs (const Array< int > &bdr_attr_is_ess, Array< int > &ess_vdofs, int component=-1) const |
virtual void | GetEssentialTrueDofs (const Array< int > &bdr_attr_is_ess, Array< int > &ess_tdof_list, int component=-1) |
void | ConvertToConformingVDofs (const Array< int > &dofs, Array< int > &cdofs) |
void | ConvertFromConformingVDofs (const Array< int > &cdofs, Array< int > &dofs) |
SparseMatrix * | D2C_GlobalRestrictionMatrix (FiniteElementSpace *cfes) |
SparseMatrix * | D2Const_GlobalRestrictionMatrix (FiniteElementSpace *cfes) |
SparseMatrix * | H2L_GlobalRestrictionMatrix (FiniteElementSpace *lfes) |
void | GetTransferOperator (const FiniteElementSpace &coarse_fes, OperatorHandle &T) const |
Construct and return an Operator that can be used to transfer GridFunction data from coarse_fes, defined on a coarse mesh, to this FE space, defined on a refined mesh. More... | |
virtual void | GetTrueTransferOperator (const FiniteElementSpace &coarse_fes, OperatorHandle &T) const |
Construct and return an Operator that can be used to transfer true-dof data from coarse_fes, defined on a coarse mesh, to this FE space, defined on a refined mesh. More... | |
virtual void | Update (bool want_transform=true) |
const Operator * | GetUpdateOperator () |
Get the GridFunction update operator. More... | |
void | GetUpdateOperator (OperatorHandle &T) |
Return the update operator in the given OperatorHandle, T. More... | |
void | SetUpdateOperatorOwner (bool own) |
Set the ownership of the update operator: if set to false, the Operator returned by GetUpdateOperator() must be deleted outside the FiniteElementSpace. More... | |
void | SetUpdateOperatorType (Operator::Type tid) |
Specify the Operator::Type to be used by the update operators. More... | |
virtual void | UpdatesFinished () |
Free the GridFunction update operator (if any), to save memory. More... | |
long | GetSequence () const |
Return update counter (see Mesh::sequence) More... | |
void | Save (std::ostream &out) const |
FiniteElementCollection * | Load (Mesh *m, std::istream &input) |
Read a FiniteElementSpace from a stream. The returned FiniteElementCollection is owned by the caller. More... | |
virtual | ~FiniteElementSpace () |
Additional Inherited Members | |
Static Public Member Functions inherited from mfem::FiniteElementSpace | |
static void | AdjustVDofs (Array< int > &vdofs) |
static void | MarkerToList (const Array< int > &marker, Array< int > &list) |
Convert a Boolean marker array to a list containing all marked indices. More... | |
static void | ListToMarker (const Array< int > &list, int marker_size, Array< int > &marker, int mark_val=-1) |
Protected Member Functions inherited from mfem::FiniteElementSpace | |
void | UpdateNURBS () |
void | Construct () |
void | Destroy () |
void | BuildElementToDofTable () const |
void | GetEntityDofs (int entity, int index, Array< int > &dofs) const |
Helper to get vertex, edge or face DOFs (entity=0,1,2 resp.). More... | |
void | BuildConformingInterpolation () const |
Calculate the cP and cR matrices for a nonconforming mesh. More... | |
void | MakeVDimMatrix (SparseMatrix &mat) const |
SparseMatrix * | RefinementMatrix_main (const int coarse_ndofs, const Table &coarse_elem_dof, const DenseTensor &localP) const |
void | GetLocalRefinementMatrices (DenseTensor &localP) const |
void | GetLocalDerefinementMatrices (DenseTensor &localR) const |
SparseMatrix * | RefinementMatrix (int old_ndofs, const Table *old_elem_dof) |
SparseMatrix * | DerefinementMatrix (int old_ndofs, const Table *old_elem_dof) |
Calculate GridFunction restriction matrix after mesh derefinement. More... | |
void | GetLocalRefinementMatrices (const FiniteElementSpace &coarse_fes, DenseTensor &localP) const |
void | Constructor (Mesh *mesh, NURBSExtension *ext, const FiniteElementCollection *fec, int vdim=1, int ordering=Ordering::byNODES) |
Help function for constructors + Load(). More... | |
Static Protected Member Functions inherited from mfem::FiniteElementSpace | |
static int | DecodeDof (int dof, double &sign) |
Helper to remove encoded sign from a DOF. More... | |
static void | AddDependencies (SparseMatrix &deps, Array< int > &master_dofs, Array< int > &slave_dofs, DenseMatrix &I) |
static bool | DofFinalizable (int dof, const Array< bool > &finalized, const SparseMatrix &deps) |
Protected Attributes inherited from mfem::FiniteElementSpace | |
Mesh * | mesh |
The mesh that FE space lives on (not owned). More... | |
const FiniteElementCollection * | fec |
Associated FE collection (not owned). More... | |
int | vdim |
Vector dimension (number of unknowns per degree of freedom). More... | |
Ordering::Type | ordering |
int | ndofs |
Number of degrees of freedom. Number of unknowns is ndofs * vdim. More... | |
int | nvdofs |
int | nedofs |
int | nfdofs |
int | nbdofs |
int * | fdofs |
int * | bdofs |
Table * | elem_dof |
Table * | bdrElem_dof |
Array< int > | dof_elem_array |
Array< int > | dof_ldof_array |
NURBSExtension * | NURBSext |
int | own_ext |
SparseMatrix * | cP |
SparseMatrix * | cR |
Conforming restriction matrix such that cR.cP=I. More... | |
bool | cP_is_set |
OperatorHandle | Th |
Transformation to apply to GridFunctions after space Update(). More... | |
long | sequence |
The H1_FESpace class is a FiniteElementSpace which automatically allocates and destroys its own FiniteElementCollection, in this case an H1_FECollection object.
Definition at line 28 of file fem_extras.hpp.
mfem::miniapps::H1_FESpace::H1_FESpace | ( | Mesh * | m, |
const int | p, | ||
const int | space_dim = 3 , |
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const int | type = BasisType::GaussLobatto , |
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int | vdim = 1 , |
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int | order = Ordering::byNODES |
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) |
Definition at line 22 of file fem_extras.cpp.
mfem::miniapps::H1_FESpace::~H1_FESpace | ( | ) |
Definition at line 30 of file fem_extras.cpp.