cgal/Packages/Kernel_23/include/CGAL/Circle_2.h

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2.8 KiB
C++

// Copyright (c) 1999 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// 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; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// 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.
//
// $Source$
// $Revision$ $Date$
// $Name$
//
// Author(s) : Andreas Fabri
// Sven Schoenherr
#ifndef CGAL_CIRCLE_2_H
#define CGAL_CIRCLE_2_H
CGAL_BEGIN_NAMESPACE
template <class R_>
class Circle_2 : public R_::Kernel_base::Circle_2
{
typedef typename R_::FT FT;
typedef typename R_::Point_2 Point_2;
typedef typename R_::Kernel_base::Circle_2 RCircle_2;
public:
typedef R_ R;
Circle_2() {}
Circle_2(const RCircle_2& t)
: RCircle_2(t) {}
Circle_2(const Point_2 &center, const FT &squared_radius,
const Orientation &orientation)
: RCircle_2(center, squared_radius, orientation) {}
Circle_2(const Point_2 &center, const FT &squared_radius)
: RCircle_2(center, squared_radius, COUNTERCLOCKWISE) {}
Circle_2(const Point_2 &p, const Point_2 &q, const Point_2 &r)
: RCircle_2(p,q,r) {}
Circle_2(const Point_2 & p, const Point_2 & q,
const Orientation &orientation)
: RCircle_2(p,q,orientation) {}
Circle_2(const Point_2 & p, const Point_2 & q)
: RCircle_2(p,q,COUNTERCLOCKWISE) {}
Circle_2(const Point_2 & center, const Orientation& orientation)
: RCircle_2(center,FT(0),orientation) {}
Circle_2(const Point_2 & center)
: RCircle_2(center,FT(0),COUNTERCLOCKWISE) {}
};
#ifndef CGAL_NO_OSTREAM_INSERT_CIRCLE_2
template < class R >
std::ostream &
operator<<(std::ostream &os, const Circle_2<R> &c)
{
typedef typename R::Kernel_base::Circle_2 RCircle_2;
return os << (const RCircle_2&)c;
}
#endif // CGAL_NO_OSTREAM_INSERT_CIRCLE_2
#ifndef CGAL_NO_ISTREAM_EXTRACT_CIRCLE_2
template < class R >
std::istream &
operator>>(std::istream &is, Circle_2<R> &c)
{
typedef typename R::Kernel_base::Circle_2 RCircle_2;
return is >> (RCircle_2&)c;
}
#endif // CGAL_NO_ISTREAM_EXTRACT_CIRCLE_2
CGAL_END_NAMESPACE
#endif // CGAL_CIRCLE_2_H