FaceGraph Concept Reference

Definition

The concept FaceGraph refines the concept HalfedgeGraph. It adds the requirements for a graph to explicitly maintain faces described by halfedges, to provide access from a face to an incident halfedge, and to provide access from a halfedge to its incident face.

A partial specialization must be provided for CGAL::graph_has_property for each internal property map available.

Associated Types

boost::graph_traits<FaceGraph>::face_descriptor

A face descriptor corresponds to a unique face in an abstract graph instance. A face descriptor must be DefaultConstructible, Assignable, EqualityComparable, and Hashable.

Refines

HalfedgeGraph

Has Models:

See Boost Graph Traits Specializations

See also

Graph Concepts

Related Functions
(Note that these are not member functions.)
template<typename FaceGraph >
boost::graph_traits< FaceGraph >::face_descriptor	face (boost::graph_traits< FaceGraph >::halfedge_descriptor h, const FaceGraph &g)
	returns the face incident to halfedge h.
template<typename FaceGraph >
boost::graph_traits< FaceGraph >::halfedge_descriptor	halfedge (boost::graph_traits< FaceGraph >::face_descriptor f, const FaceGraph &g)
	returns the halfedge incident to face f.
template<typename FaceGraph >
boost::graph_traits< FaceGraph >::degree_size_type	degree (boost::graph_traits< FaceGraph >::face_descriptor f, const FaceGraph &g)
	returns the number of halfedges incident to face f.