The figure on page [ref:figureNefS2SVertexIncidences] illustrate the incidence of a svertex on a sphere map.
The member function out_sedge returns the first outgoing shalfedge, and incident_sface returns the the incident sface.
#include <CGAL/Nef_polyhedron_S2.h>
The following types are the same as in Nef_polyhedron_S2<Traits>.
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type of mark.
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sphere point type stored in SVertex.
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const handle to SVertex.
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const handle to SHalfedge.
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const handle to SFace.
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There is no need for a user to create a SVertex explicitly. The class Nef_polyhedron_S2<Traits> manages the needed svertices internally.
CGAL::Nef_polyhedron_S2<Traits>::SHalfedge
CGAL::Nef_polyhedron_S2<Traits>::SFace
CGAL::Nef_polyhedron_S2<Traits>::Sphere_point