Arrangement_2<Traits,Dcel>::Vertex

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CGAL::Arrangement_2<Traits,Dcel>::Vertex

Definition

An object

v of the class Arrangement_2<Traits,Dcel>::Vertex represents an arrangement vertex, that is - a

0-dimensional cell, associated with a point on the plane.

Inherits From

typename Dcel::Vertex

Creation

Arrangement_2<Traits,Dcel>::Vertex v;
default constructor.

Access Functions

All non-const methods listed below also have const counterparts that return constant handles, iterators or circulators:

bool v.is_isolated () checks whether the vertex is isolated. (It has no incident edges.)

typename Dcel::Size
v.degree () returns the number of edges incident to v.

Halfedge_around_vertex_circulator
v.incident_halfedges ()
returns a circulator circulator that allows going over the halfedges incident to v (that have v as their target). The edges are traversed in a clockwise direction around v.
Precondition: v is not an isolated vertex.

Face_handle v.face () returns a handle to the face that contains v in its interior.
Precondition: v is an isolated vertex.

typename Traits::Point_2
v.point () returns the point associated with the vertex.

Next: Arrangement_2<Traits,Dcel>::Halfedge

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CGAL Open Source Project. Release 3.2.1. 13 July 2006.

bool	v.is_isolated ()	checks whether the vertex is isolated. (It has no incident edges.)

typename Dcel::Size
	v.degree ()	returns the number of edges incident to v.

Halfedge_around_vertex_circulator
	v.incident_halfedges ()
		returns a circulator circulator that allows going over the halfedges incident to v (that have v as their target). The edges are traversed in a clockwise direction around v. Precondition: v is not an isolated vertex.

Face_handle	v.face ()	returns a handle to the face that contains v in its interior. Precondition: v is an isolated vertex.

typename Traits::Point_2
	v.point ()	returns the point associated with the vertex.