The concept StraightSkeletonVertex_2 describes the requirements for the vertex type of the StraightSkeleton_2 concept. It is a refinement of the HalfedgeDSVertex concept with support for storage of the incident halfedge. The StraightSkeletonVertex_2 concept requires the geometric embedding to be a 2D point.
 
Default constructor
 
 
Constructs a contour vertex with ID number id, at the point p
 
 
Constructs a skeleton vertex with ID number id, at point p and time time.


 The ID of the vertex. 

 The vertex point. 

 The time of the vertex: the distance from the vertex point to the lines supporting the defining contour edges 




 Returns the skeleton halfedge incident upon the vertex (called the primary bisector). 



 

Returns a bidirectional circulator pointing to one of the incident halfedges (which one is unspecified). There will always be as many incident halfedges as the degree of the vertex. If this is a contour vertex, its degree is exactly 3, and from the halfedges pointed to by the circulator, 2 are contour and 1 is a bisector. If this is an skeleton vertex, its degree is at least 3 and all of the halfedges pointed to by the circulator are bisectors. Each halfedge pointed to by this circulator is the one which is oriented towards the vertex (according to the geometric embedding).  
 
 
 
 
Returns a bidirectional circulator pointing to one of the defining contour halfedges of the vertex (which one is unspecified). There will always be as many incident defining contour halfedges as the degree of the vertex. Each halfedge pointed to by this circulator is the one having its left side facing inwards (which happens to be the contour halfedge for which is_border() is false). 

 Returns true iff this is a contour vertex. 

 Returns true iff this is a skeleton vertex. 
CGAL::Straight_skeleton_vertex_base_2<Refs,Point,FT>.
StraightSkeleton_2
StraightSkeletonHalfedge_2
CGAL::Straight_skeleton_vertex_base_2<Refs,Point,FT>
CGAL::Straight_skeleton_halfedge_base_2<Refs>