CGAL 6.2 - 2D Boolean Operations on Nef Polygons

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Nef_2/nef_2_construction.cpp
#include <CGAL/Exact_rational.h>
#include <CGAL/Extended_cartesian.h>
#include <CGAL/Nef_polyhedron_2.h>
#include <cassert>
typedef CGAL::Exact_rational FT;
typedef CGAL::Extended_cartesian<FT> Extended_kernel;
typedef CGAL::Nef_polyhedron_2<Extended_kernel> Nef_polyhedron;
typedef Nef_polyhedron::Point Point;
typedef Nef_polyhedron::Line Line;
int main() {
Nef_polyhedron N1(Nef_polyhedron::COMPLETE);
Line l(2.1,4.8,2.0); // l : 2.1x + 4.8y + 2 = 0
Nef_polyhedron N2(l,Nef_polyhedron::INCLUDED);
Nef_polyhedron N3 = N2.complement();
assert(N1 == N2.join(N3));
Point p1(0.1,0.), p2(10.8,10.25), p3(-20.18,15.14);
Point triangle[3] = { p1, p2, p3 };
Nef_polyhedron N4(triangle, triangle+3);
Nef_polyhedron N5 = N2.intersection(N4);
assert(N5 <= N2 && N5 <= N4);
return 0;
}
Exact_rational.h
CGAL::Extended_cartesian
The class Extended_cartesian serves as a traits class for the class Nef_polyhedron_2<T>.
Definition: Extended_cartesian.h:22
CGAL::Nef_polyhedron_2
An instance of data type Nef_polyhedron_2<T> is a subset of the plane that is the result of forming c...
Definition: Nef_polyhedron_2.h:92
unspecified_type