CGAL 5.6.1 - 3D Boolean Operations on Nef Polyhedra
CGAL::Nef_nary_union_3< Nef_polyhedron_3 > Class Template Reference

#include <CGAL/Nef_nary_union_3.h>


This class helps to perform the union of a set of 3D Nef polyhedra efficiently.

It succesively applies the binary union operation of Nef_polyhedron_3, but schedules these union operations in an opportune way. The class is most efficient, if the polyhedra are added in sorted order. Any order that reflects proximity in the three-dimensional space is helpful. To allow saving memory space, the sorting is left to the user. This way the user can generate the polyhedra in a sorted way and add them one by one to Nef_nary_union_3.

Template Parameters
NefPolyhedron_3must be an instantiation of the class template Nef_polyhedron_3.


 Nef_nary_union_3 ()
 initialization only.

Member Functions

NefPolyhedron_3 get_union () const
 returns the union of the polyhedra previously added to the class. More...
void add_polyhedron (const NefPolyhedron_3 &N)
 adds a polyhedron.

Member Function Documentation

◆ get_union()

template<typename Nef_polyhedron_3 >
NefPolyhedron_3 CGAL::Nef_nary_union_3< Nef_polyhedron_3 >::get_union ( ) const

returns the union of the polyhedra previously added to the class.

The union does not get removed so that further Nef polyhedra can be added later.