\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.6 - CGAL and the Boost Graph Library
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Groups Pages
HalfedgeListGraph Concept Reference
Concepts

Definition

The concept HalfedgeListGraph refines the concept HalfedgeGraph and adds the requirements for traversal of all halfedges in the graph.

Refines:
HalfedgeGraph
Has Models:

CGAL::Polyhedron_3

CGAL::Surface_mesh

Notations

G
A type that is a model of HalfedgeListGraph.
g
An object of type G.

Associated Types

Type Description
boost::graph_traits<G>::halfedge_iterator A BidirectionalIterator over all halfedges in a graph. Must be DefaultConstructible, Assignable, EqualityComparable.
boost::graph_traits<G>::halfedges_size_type A size type.

Valid Expressions

Expression Returns Description
num_halfedges(g) halfedges_size_type An upper bound of the number of halfedges of the graph.
halfedges(g) std::pair<halfedge_iterator,halfedge_iterator> An iterator range over the halfedges of the graph.
Attention
num_halfedges() may return a number larger than std::distance(halfedges(g).first,halfedges(g).second). This is the case for implementations only marking halfedges deleted in the halfedge container.