Dune::ALU2dGridEntity< 0, dim, GridImp > Class Template Reference
#include <entity.hh>
Inheritance diagram for Dune::ALU2dGridEntity< 0, dim, GridImp >:

Detailed Description
template<int dim, class GridImp>
class Dune::ALU2dGridEntity< 0, dim, GridImp >
A Grid is a container of grid entities. An entity is parametrized by the codimension. An entity of codimension c in dimension d is a d-c dimensional object.Entities of codimension 0 ("elements") are defined through template specialization. Note that this specialization has an extended interface compared to the general case
Entities of codimension 0 allow to visit all neighbors, where a neighbor is an entity of codimension 0 which has a common entity of codimension 1 with the These neighbors are accessed via an iterator. This allows the implementation of non-matching meshes. The number of neigbors may be different from the number of faces/edges of an element!
Public Types | |
typedef GridImp::template Codim< 0 >::Geometry | Geometry |
type of our Geometry interface | |
typedef MakeableInterfaceObject< Geometry > | GeometryObj |
type of our Geometry implementation | |
typedef LeafIntersectionIteratorWrapper< GridImp > | ALU2dGridLeafIntersectionIteratorType |
tpye of intersection iterator | |
typedef GridImp::template Codim< 0 >::Entity | Entity |
type of entity interface | |
typedef ALU2dGridEntityPointer< 0, GridImp > | EntityPointer |
tpye of entitypointer interface | |
enum | |
know your own codimension | |
enum | |
know your own dimension | |
enum | |
Know dimension of the entity. | |
enum | |
know your own dimension of world | |
typedef ct | ctype |
define type used for coordinates in grid module | |
Public Member Functions | |
ALU2dGridEntity (const GridImp &grid, int level) | |
Constructor creating empty Entity. | |
ALU2dGridEntity (const ALU2dGridEntity &org) | |
Constructor creating empty Entity. | |
int | level () const |
level of this element | |
const Geometry & | geometry () const |
geometry of this entity | |
template<int cc> | |
int | count () const |
int | boundaryId () const |
Id of the boundary which is associated with the entity, returns 0 for inner entities, arbitrary int otherwise. | |
ALU2dGridIntersectionIteratorType | ibegin () const |
ALU2dGridIntersectionIteratorType | iend () const |
Reference to one past the last intersection with neighbor. | |
bool | isLeaf () const |
returns true if Entity is leaf (i.e. has no children) | |
EntityPointer | father () const |
ALU2dGridHierarchicIterator< GridImp > | hbegin (int maxLevel) const |
ALU2dGridHierarchicIterator< GridImp > | hend (int maxLevel) const |
Returns iterator to one past the last son. | |
template<int cc> | |
Codim< cc >::EntityPointer | entity (int i) const |
PartitionType | partitionType () const |
return partition type of this entity ( see grid.hh ) | |
template<int cc> | |
int | subBoundaryId (int i) const |
The boundaryId of the i-th subentity of codimension cc . | |
const Geometry & | geometryInFather () const |
bool | mightBeCoarsened () const |
The former state() method has been replaced by:. | |
bool | mark (int refCount) const |
int | getMark () const |
return current adaptation mark of element | |
void | setElement (const HElementType &element, int face=-1, int level=-1) const |
void | reset (int l) |
set actual walk level | |
void | removeElement () |
set item pointer to NULL | |
bool | equals (const ALU2dGridEntity< 0, dim, GridImp > &org) const |
compare 2 entities, which means compare the item pointers | |
GeometryType | type () const |
Return the name of the reference element. The type can be used to access the Dune::ReferenceElement. |
Member Function Documentation
int Dune::ALU2dGridEntity< 0, dim, GridImp >::count | ( | ) | const [inline] |
Intra-element access to entities of codimension cc > codim. Return number of entities with codimension cc.
ALU2dGridIntersectionIteratorType Dune::ALU2dGridEntity< 0, dim, GridImp >::ibegin | ( | ) | const [inline] |
Intra-level access to intersection with neighboring elements. A neighbor is an entity of codimension 0 which has an entity of codimension 1 in commen with this entity. Access to neighbors is provided using iterators. This allows meshes to be nonmatching. Returns iterator referencing the first neighbor.
ALU2dGridEntity< 0, dim, GridImp >::EntityPointer Dune::ALU2dGridEntity< 0, dim, GridImp >::father | ( | ) | const [inline] |
Inter-level access to father element on coarser grid. Assumes that meshes are nested.
ALU2dGridHierarchicIterator<GridImp> Dune::ALU2dGridEntity< 0, dim, GridImp >::hbegin | ( | int | maxLevel | ) | const [inline] |
Inter-level access to son elements on higher levels<=maxlevel. This is provided for sparsely stored nested unstructured meshes. Returns iterator to first son.
ALU2dGridEntity< 0, dim, GridImp >::template Codim< cc >::EntityPointer Dune::ALU2dGridEntity< 0, dim, GridImp >::entity | ( | int | i | ) | const [inline] |
Provide access to mesh entity i of given codimension. Entities are numbered 0 ... count<cc>()-1
int Dune::ALU2dGridEntity< 0, dim, GridImp >::subBoundaryId | ( | int | i | ) | const [inline] |
The boundaryId of the i-th subentity of codimension cc
.
This does the same as entity<cc>(i).boundaryId()
, but it is usually a lot faster.
const ALU2dGridEntity< 0, dim, GridImp >::Geometry & Dune::ALU2dGridEntity< 0, dim, GridImp >::geometryInFather | ( | ) | const [inline] |
Location of this element relative to the reference element of the father. This is sufficient to interpolate all dofs in conforming case. Nonconforming may require access to neighbors of father and computations with local coordinates. On the fly case is somewhat inefficient since dofs are visited several times. If we store interpolation matrices, this is tolerable. We assume that on-the-fly implementation of numerical algorithms is only done for simple discretizations. Assumes that meshes are nested.
bool Dune::ALU2dGridEntity< 0, dim, GridImp >::mark | ( | int | refCount | ) | const [inline] |
marks an element for refCount refines. if refCount is negative the element is coarsend -refCount times mark returns true if element was marked, otherwise false
void Dune::ALU2dGridEntity< 0, dim, GridImp >::setElement | ( | const HElementType & | element, | |
int | face = -1 , |
|||
int | level = -1 | |||
) | const [inline] |
private methods, but public because of datahandle and template arguments of these methods
The documentation for this class was generated from the following files:
- alugrid/2d/entity.hh
- 2d/entity_imp.cc