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// Copyright (c) 2000
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). 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 Lesser 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: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/next/Intersections_2/include/CGAL/Circle_2_Line_2_intersection.h $
// $Id: Circle_2_Line_2_intersection.h 67093 2012-01-13 11:22:39Z lrineau $
//
//
// Author(s) : Geert-Jan Giezeman
#ifndef CGAL_CIRCLE_2_LINE_2_INTERSECTION_H
#define CGAL_CIRCLE_2_LINE_2_INTERSECTION_H
#include <CGAL/Circle_2.h>
#include <CGAL/Line_2.h>
#include <CGAL/Object.h>
#include <CGAL/squared_distance_2_1.h>
namespace CGAL {
namespace internal {
template <class K>
bool
do_intersect(const typename K::Circle_2 & c,
const typename K::Line_2& l,
const K&)
{
return squared_distance(c.center(), l) <= c.squared_radius();
}
template <class K>
bool
do_intersect(const typename K::Line_2& l,
const typename K::Circle_2 & c,
const K&)
{
return squared_distance(c.center(), l) <= c.squared_radius();
}
} // namespace internal
template <class K>
inline
bool
do_intersect(const Circle_2<K> & c,
const Line_2<K> & l)
{
typedef typename K::Do_intersect_2 Do_intersect;
return Do_intersect()(c, l);
}
template <class K>
inline
bool
do_intersect(const Line_2<K> & l,
const Circle_2<K> & c)
{
typedef typename K::Do_intersect_2 Do_intersect;
return Do_intersect()(c, l);
}
} //namespace CGAL
#endif
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