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\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.14.2 - 3D Envelopes
CGAL::Envelope_diagram_2< EnvTraits >::Halfedge Class Reference

#include <CGAL/envelope_3.h>

Inherits from

CGAL::Arrangement_2< class, class >::Halfedge.

Access Functions

size_t number_of_surfaces () const
 returns the number of \( xy\)-monotone surfaces that induce the halfedge.
Surface_const_iterator surfaces_begin () const
 returns an iterator for the first \( xy\)-monotone surface that induces the halfedge.
Surface_const_iterator surfaces_end () const
 returns a past-the-end iterator for the \( xy\)-monotone surfaces that induce the halfedge.
Xy_monotone_surface_3 surface () const
 returns the first \( xy\)-monotone surface that induce e. More...

Additional Inherited Members

- Public Member Functions inherited from CGAL::Arrangement_2< class, class >::Halfedge
 Halfedge ()
bool is_fictitious () const
Vertex_handle source ()
Vertex_handle target ()
Arr_halfedge_direction direction () const
Face_handle face ()
Halfedge_handle twin ()
Halfedge_handle prev ()
Halfedge_handle next ()
Ccb_halfedge_circulator ccb ()
const Traits::X_monotone_curve_2 & curve () const

Member Function Documentation

◆ surface()

template<typename EnvTraits >
Xy_monotone_surface_3 CGAL::Envelope_diagram_2< EnvTraits >::Halfedge::surface ( ) const

returns the first \( xy\)-monotone surface that induce e.

The number of surfaces is not 0.