75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
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// Copyright (c) 1997-2004
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Cartesian_kernel/include/CGAL/Cartesian/Circle_2.h $
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// $Id: Circle_2.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Andreas Fabri, Herve Bronnimann
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#ifndef CGAL_CARTESIAN_CIRCLE_2_H
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#define CGAL_CARTESIAN_CIRCLE_2_H
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#include <CGAL/Cartesian/predicates_on_points_2.h>
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#include <boost/tuple/tuple.hpp>
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namespace CGAL {
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template <class R_ >
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class CircleC2
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{
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typedef typename R_::FT FT;
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typedef typename R_::RT RT;
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typedef typename R_::Circle_2 Circle_2;
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typedef typename R_::Point_2 Point_2;
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typedef boost::tuple<Point_2, FT, Orientation> Rep;
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typedef typename R_::template Handle<Rep>::type Base;
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Base base;
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public:
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typedef R_ R;
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CircleC2() {}
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explicit CircleC2(const Point_2 ¢er, const FT &squared_radius = FT(0),
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const Orientation &orient = COUNTERCLOCKWISE) // Is this new?
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{
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CGAL_kernel_precondition( ( squared_radius >= FT(0) ) &
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( orient != COLLINEAR) );
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base = Rep(center, squared_radius, orient);
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}
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bool operator==(const CircleC2 &s) const;
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bool operator!=(const CircleC2 &s) const;
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const Point_2 & center() const
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{
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return get_pointee_or_identity(base).template get<0>();
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}
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const FT & squared_radius() const
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{
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return get_pointee_or_identity(base).template get<1>();
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}
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Orientation orientation() const
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{
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return get_pointee_or_identity(base).template get<2>();
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}
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};
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} //namespace CGAL
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#endif // CGAL_CARTESIAN_CIRCLE_2_H
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