class Mesh

Abstract data type for mesh class.

Inheritance:

Public Methods

virtual void Load( istream &input, int generate_edges = 0 )

Load mesh from input stream input.

inline int GetNV() const

Returns number of vertices.

inline int GetNE() const

Returns number of elements.

inline int GetNBE() const

Returns number of boundary elements.

inline int GetNEdges() const

Return the number of edges.

virtual double* GetVertex(int i) const

Return pointer to vertex i's coordinates

virtual void GetElementVertices( int i, Array<int> &dofs ) const

Returns the indices of the dofs of element i.

virtual void GetBdrElementVertices( int i, Array<int> &dofs ) const

Returns the indices of the dofs of boundary element i.

virtual void GetElementEdges(int i, Array<int> &, Array<int> &) const

Return the indices and the orientations of all edges of element i.

virtual void GetBdrElementEdges(int i, Array<int> &, Array<int> &) const

Return the indices and the orientations of all edges of bdr element i.

virtual void GetElementFaces(int i, Array<int> &, Array<int> &) const

Return the indices and the orientations of all faces of element i.

virtual void GetBdrElementFace(int i, int *, int *) const

Return the index and the orientation of the face of bdr element i. (3D)

virtual int GetBdrElementEdgeIndex(int i) const

Return the edge index of boundary element i.

virtual int GetElementType(int i) const

Returns the type of element i.

virtual int GetBdrElementType(int i) const

Returns the type of boundary element i.

virtual void GetPointMatrix(int i, RectangularMatrix &pointmat ) const

Return point matrix of dimension Dim X dofs, where for every degreeof freedom we give its coordinates in space of dimension Dim

virtual void GetBdrPointMatrix(int i, RectangularMatrix &pointmat ) const

Return point matrix of dimension Dim X dofs, where for every degreeof freedom we give its coordinates in space of dimension Dim

virtual int GetAttribute(int i) const

Return element i's attribute.

virtual int GetBdrAttribute(int i) const

Return boundary element i's attribute.

virtual double GetLength(int i, int j) const

Return the length of the segment from node i to node j.

virtual void GetVertexToVertexTable( STable &) const

Return vertex to vertex table

virtual int GetElementToEdgeTable(Table &, Array<int> &)

Return element to edge table and the indeces for the boundary edges

virtual ElementTransformation* GetElementTransformation(int i)

Returns the transformation defining the i-th element

virtual ElementTransformation* GetBdrElementTransformation(int i)

Returns the transformation defining the i-th boundary element

virtual void LocalRefinement(const Array<int> &marked_el, int type = 3)

Refine the marked elements.

void UseTwoLevelState(int use)

Sets or clears the flag that indicates that 'LocalRefinement (

virtual void SetState(int s)

Change the mesh state to NORMAL, TWO_LEVEL_COARSE, TWO_LEVEL_FINE

virtual int GetNumFineElems(int i)

For a given coarse element i returns the number of subelements it is divided into

virtual int GetRefinementType(int i)

For a given coarse element i returns its refinement type

virtual int GetFineElem(int i, int j)

For a given coarse element i and index j of one of its subelements return the global index of the fine element in the fine mesh

virtual ElementTransformation* GetFineElemTrans(int i, int j)

For a given coarse element i and index j of one of its subelements return the transformation that transforms the fine element into the coordinate system of the coarse element

virtual void Print(ostream &out, const Vector &solution, int format = 1 ) const

Print the mesh and the vertex solution in file given by f_name in mcsg format

virtual void Print(ostream &out = cout) const

Print the mesh in Netgen format

virtual void Load( istream &input, int generate_edges = 0 )

Load mesh from input stream input.

inline int GetNV() const

Returns number of vertices.

inline int GetNE() const

Returns number of elements.

inline int GetNBE() const

Returns number of boundary elements.

inline int GetNEdges() const

Return the number of edges.

virtual double* GetVertex(int i) const

Return pointer to vertex i's coordinates

virtual void GetElementVertices( int i, Array<int> &dofs ) const

Returns the indices of the dofs of element i.

virtual void GetBdrElementVertices( int i, Array<int> &dofs ) const

Returns the indices of the dofs of boundary element i.

virtual void GetElementEdges(int i, Array<int> &, Array<int> &) const

Return the indices and the orientations of all edges of element i.

virtual void GetBdrElementEdges(int i, Array<int> &, Array<int> &) const

Return the indices and the orientations of all edges of bdr element i.

virtual void GetElementFaces(int i, Array<int> &, Array<int> &) const

Return the indices and the orientations of all faces of element i.

virtual void GetBdrElementFace(int i, int *, int *) const

Return the index and the orientation of the face of bdr element i. (3D)

virtual int GetBdrElementEdgeIndex(int i) const

Return the edge index of boundary element i.

virtual int GetElementType(int i) const

Returns the type of element i.

virtual int GetBdrElementType(int i) const

Returns the type of boundary element i.

virtual void GetPointMatrix(int i, RectangularMatrix &pointmat ) const

Return point matrix of dimension Dim X dofs, where for every degreeof freedom we give its coordinates in space of dimension Dim.

virtual void GetBdrPointMatrix(int i, RectangularMatrix &pointmat ) const

Return point matrix of dimension Dim X dofs, where for every degreeof freedom we give its coordinates in space of dimension Dim.

virtual int GetAttribute(int i) const

Return element i's attribute.

virtual int GetBdrAttribute(int i) const

Return boundary element i's attribute.

virtual double GetLength(int i, int j) const

Return the length of the segment from node i to node j.

virtual void GetVertexToVertexTable( STable &) const

Return vertex to vertex table. The connections stored in the table are from smaller to bigger vertex index, i.e. if i<j and (i, j) is in the table, then (j, i) is not stored.

virtual int GetElementToEdgeTable(Table &, Array<int> &)

Return element to edge table and the indeces for the boundary edges. The entries in the table are ordered according to the order of the nodes in the elements. For example, if T is the element to edge table T(i, 0) gives the index of edge in element i that connects vertex 0 to vertex 1, etc. Returns the number of the edges.

virtual ElementTransformation* GetElementTransformation(int i)

Returns the transformation defining the i-th element

virtual ElementTransformation* GetBdrElementTransformation(int i)

Returns the transformation defining the i-th boundary element

virtual void LocalRefinement(const Array<int> &marked_el, int type = 3)

Refine the marked elements.

void UseTwoLevelState(int use)

Sets or clears the flag that indicates that 'LocalRefinement (...)' should put the mesh in two-level state.

virtual void SetState(int s)

Change the mesh state to NORMAL, TWO_LEVEL_COARSE, TWO_LEVEL_FINE

virtual int GetNumFineElems(int i)

For a given coarse element i returns the number of subelements it is divided into

virtual int GetRefinementType(int i)

For a given coarse element i returns its refinement type

virtual int GetFineElem(int i, int j)

For a given coarse element i and index j of one of its subelements return the global index of the fine element in the fine mesh

virtual ElementTransformation* GetFineElemTrans(int i, int j)

For a given coarse element i and index j of one of its subelements return the transformation that transforms the fine element into the coordinate system of the coarse element. Clear, isn't it? :-)

virtual void Print(ostream &out, const Vector &solution, int format = 1 ) const

Print the mesh and the vertex solution in file given by f_name in mcsg format.

virtual void Print(ostream &out = cout) const

Print the mesh in Netgen format

Direct child classes:

DMesh

alphabetic index hierarchy of classes

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