A relation between two mesh entities with a relation identifier and kind . More...

#include <Relation.hpp>

Public Types
typedef uintptr_t	raw_attr_type
Public Member Functions
	~Relation ()
	Destructor.
	Relation ()
	Constructor.
	Relation (const Relation &r)
	Copy Constructor.
Relation &	operator= (const Relation &r)
	Assignment operator.
	Relation (raw_attr_type attr, Entity &entity)
	Construct a relation from an encoded relation attribute and a referenced entity.
	Relation (Entity &entity, unsigned identifier)
	Construct a relation from a referenced entity, local identifier, kind, and converse flag.
raw_attr_type	attribute () const
	The encoded relation attribute.
unsigned	entity_rank () const
	The rank of the referenced entity.
unsigned	identifier () const
	The local relation identifier.
Entity *	entity () const
	The referenced entity.
bool	operator== (const Relation &r) const
	Equality operator.
bool	operator!= (const Relation &r) const
	Inequality operator.
bool	operator< (const Relation &r) const
	Ordering operator.
Static Public Member Functions
static raw_attr_type	attribute (unsigned rank, unsigned id)
	The encoded relation attribute.

Detailed Description

A relation between two mesh entities with a relation identifier and kind .

Each entity owns a collection of relations to other entities. Each of these relations has a referenced entity, direction, relation identifier, and kind.

The direction specifies whether the relation is from the entity owning the relation to the referenced entity or conversely from the referenced entity to the owning entity.
The identifier provides a local numbering convention for relations, for example the local numbering convention for the nodes of an element.
Relations can be given a kind attribute to differentiate between topological relations (kind = 0) and other kinds of relationships such as constraints.

Relations are ordered by their

kind of relation,
type of the referenced entity,
if the relation is forward or converse,
local relation identifier, and then
referenced entity's identifier.

Definition at line 47 of file Relation.hpp.

The documentation for this class was generated from the following files:

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description