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)
template<typename FaceGraph >
boost::graph_traits< FaceGraph >::halfedge_descriptor	halfedge (boost::graph_traits< FaceGraph >::face_descriptor f, const FaceGraph &g)
template<typename FaceGraph >
boost::graph_traits< FaceGraph >::degree_size_type	degree (boost::graph_traits< FaceGraph >::face_descriptor f, const FaceGraph &g)

Friends And Related Function Documentation

degree()

template<typename FaceGraph >

boost::graph_traits< FaceGraph >::degree_size_type degree ( boost::graph_traits< FaceGraph >::face_descriptor  f, const FaceGraph &  g  )

related

returns the number of halfedges incident to face f.

face()

template<typename FaceGraph >

boost::graph_traits< FaceGraph >::face_descriptor face ( boost::graph_traits< FaceGraph >::halfedge_descriptor  h, const FaceGraph &  g  )

related

returns the face incident to halfedge h.

Examples:

BGL_surface_mesh/seam_mesh.cpp.

halfedge()

template<typename FaceGraph >

boost::graph_traits< FaceGraph >::halfedge_descriptor halfedge ( boost::graph_traits< FaceGraph >::face_descriptor  f, const FaceGraph &  g  )

related

returns the halfedge incident to face f.

Examples:

BGL_polyhedron_3/incident_vertices.cpp, BGL_polyhedron_3/normals.cpp, and BGL_surface_mesh/seam_mesh.cpp.