CGAL 6.2 - 2D Boolean Operations on Nef Polygons Embedded on the Sphere: CGAL::Nef_polyhedron_S2< Traits >::SFace_cycle_iterator Class Reference

CGAL 6.2 - 2D Boolean Operations on Nef Polygons Embedded on the Sphere

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CGAL::Nef_polyhedron_S2< Traits >::SFace_cycle_iterator Class Reference
Reference Manual

`#include <CGAL/Nef_polyhedron_S2.h>`

## Definition

template<typename Traits>
class CGAL::Nef_polyhedron_S2< Traits >::SFace_cycle_iterator

The type `SFace_cycle_iterator` iterates over a list of `Object_handles`.

Each item of that list can either be assigned to `SVertex_handle`, `SHalfedge_handle` or `SHalfloop_handle`. To find out which of these assignment works out, the member functions `is_svertex()`, `is_shalfedge()` and `is_shalfloop()` are provided.

See also
  `CGAL::Nef_polyhedron_S2::SVertex`
  `CGAL::Nef_polyhedron_S2::SHalfedge`
  `CGAL::Nef_polyhedron_S2::SHalfloop`

## Types
typedef unspecified_type | SVertex_handle
| const handle to SVertex.
typedef unspecified_type | SHalfedge_handle
| const handle to SHalfedge.
typedef unspecified_type | SHalfloop_handle
| const handle to SHalfloop.

## Creation
| SFace_cycle_iterator ()
| default constructor.

## Operations
bool | is_svertex () const
| returns true if the iterator represents a `SVertex_handle`.
bool | is_shalfedge () const
| returns true if the iterator represents a `SHalfedge_handle`.
bool | is_shalfloop () const
| returns true if the iterator represents a `SHalfloop_handle`.
| operator SVertex_handle () const
| casts the iterator to `SVertex_handle`.
| operator SHalfedge_handle () const
| casts the iterator to `SHalfedge_handle`.
| operator SHalfloop_handle () const
| casts the iterator to `SHalfloop_handle`.