CGAL 4.7 - 2D Boolean Operations on Nef Polygons Embedded on the Sphere: CGAL::Qt_widget_Nef_S2< Nef_polyhedron_S2 > Class Template Reference

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CGAL 4.7 - 2D Boolean Operations on Nef Polygons Embedded on the Sphere

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CGAL::Qt_widget_Nef_S2< Nef_polyhedron_S2 > Class Template Reference
2D Boolean Operations on Nef Polygons Embedded on the Sphere Reference

`#include <CGAL/IO/Qt_widget_Nef_S2.h>`

## Definition

The class `Qt_widget_Nef_S2` uses the OpenGL interface of Qt in order to display a `Nef_polyhedron_S2`.

Its purpose is to provide an easy to use viewer for `Nef_polyhedron_S2`. There are no means provided to enhance the functionality of the viewer.

In addition to the functions inherited from the Qt class `QGLWidget`, `Qt_widget_Nef_S2` only has a single public constructor. For the usage of `Qt_widget_Nef_S2` see the example below.

Parameters

The template parameter expects an instantiation of `Nef_polyhedron_S2<Traits>`.

See Also
  `CGAL::Nef_polyhedron_S2<Traits>`

Example

This example creates some random `Sphere_segments` and distributes them on two `Nef_polyhedron_2`. The two Nef polyhedra are combined by a symmetric difference and the result is displayed in a Qt widget.

File Nef_S2/nef_S2.cpp

// Copyright (c) 2004 Max-Planck-Institute Saarbruecken (Germany).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Peter Hachenberger <hachenberger@mpi-sb.mpg.de>
#include <CGAL/basic.h>
#include <CGAL/Exact_integer.h>
#include <CGAL/Homogeneous.h>
#include <CGAL/Nef_polyhedron_S2.h>
#include <CGAL/Nef_S2/create_random_Nef_S2.h>
#include <CGAL/IO/Qt_widget_Nef_S2.h>
#include <qapplication.h>
typedef CGAL::Exact_integer RT;
typedef CGAL::Homogeneous<RT> Kernel;
typedef CGAL::Nef_polyhedron_S2<Kernel> Nef_polyhedron_S2;
int main(int argc, char* argv[]) {
Nef_polyhedron_S2 S;
create_random_Nef_S2(S,5);
QApplication a(argc, argv);
CGAL::Qt_widget_Nef_S2<Nef_polyhedron_S2>* w =
new CGAL::Qt_widget_Nef_S2<Nef_polyhedron_S2>(S);
a.setMainWidget(w);
w->show();
return a.exec();
}

Examples:
  Nef_S2/nef_S2.cpp.

## Creation

| Qt_widget_Nef_3 (const Nef_polyhedron_S2 &N)
| Creates a widget `W` for displaying the `Nef_polyhedron_S2` N.