FiniteElementSpace

class FiniteElementSpace

Abstract finite element space.

Inheritance:

Public Classes
enum: Constants for the classes derived from FiniteElementSpace.

Public Methods
FiniteElementSpace(Mesh * m, int dim = 1, int order = Ordering::byNODES): Creates FE space associated with mesh of vector dimension dim.
inline int GetVDim() const: Returns vector dimension.
inline int GetNDofs() const: Returns number of degrees of freedom.
inline int GetOrdering() const: Return the ordering method.
inline int GetNE() const: Returns number of elements in the mesh.
inline int GetNV() const: Returns number of nodes in the mesh.
inline int GetNBE() const: Returns number of boundary elements in the mesh.
inline int GetElementType(int i) const: Returns the type of element i.
inline void GetElementVertices(int i, Array<int> &vertices) const: Returns the vertices of element i.
inline int GetBdrElementType(int i) const: Returns the type of boundary element i.
ElementTransformation* GetElementTransformation(int i) const: Returns ElementTransformation for the i'th element.
ElementTransformation* GetBdrElementTransformation(int i) const: Returns ElementTransformation for the i'th boundary element.
virtual int Type() const: Returns type of the FE space.
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 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.
virtual const FiniteElement* GetFE(int i) const: Returns pointer to the FiniteElement associated with i'th element.
virtual const FiniteElement* GetBE(int i) const: Returns pointer to the FiniteElement for the i'th boundary element.
virtual void ConstructRefinementData(int k, int cdofs, RefinementType type): Constructs new refinement data using coarse element k as a template
RectangularMatrix* LocalInterpolation(int k, int cdofs, RefinementType type, Array<int> &rows): Generates the local interpolation matrix for coarse element k
SparseMatrix* GlobalRestrictionMatrix(FiniteElementSpace *cfes, Array<int> &bdr_attr_is_ess): Generate the global restriction matrix with eliminated essential bc
void PrintMesh(ostream & out = cout) const: Prints the mesh for the FE space (vertices).
virtual void PrintFES(ostream & out = cout, int format = 0) const: Prints the FES space data (dofs).
void Print(ostream & outMesh = cout, ostream & outFES = cout) const: Prints the mesh and the FES space data.
~FiniteElementSpace(): Destroys FE space.

Protected Fields
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: Type of ordering of dofs