mirror of https://github.com/CGAL/cgal
76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
// Copyright (c) 2003-2006 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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// Author(s) : Monique Teillaud, Sylvain Pion
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// Partially supported by the IST Programme of the EU as a Shared-cost
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// RTD (FET Open) Project under Contract No IST-2000-26473
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// (ECG - Effective Computational Geometry for Curves and Surfaces)
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// and a STREP (FET Open) Project under Contract No IST-006413
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// (ACS -- Algorithms for Complex Shapes)
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#ifndef CGAL_ALGEBRAIC_KERNEL_POLYNOMIALS_2_2_H
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#define CGAL_ALGEBRAIC_KERNEL_POLYNOMIALS_2_2_H
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//////////// FIXME - pb RT (cas general Polynomial_2_2) ou FT (ici)
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#include <CGAL/enum.h>
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CGAL_BEGIN_NAMESPACE
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// polynomials of the form (X-a)^2 + (Y-b)^2 - R^2
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template < typename FT_ >
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class Polynomial_for_circles_2_2
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{
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FT_ rep[3]; // stores a, b, R^2
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public:
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typedef FT_ FT;
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Polynomial_for_circles_2_2(){}
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Polynomial_for_circles_2_2(const FT & a, const FT & b, const FT & rsq)
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{
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rep[0]=a;
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rep[1]=b;
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rep[2]=rsq;
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}
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const FT & a() const
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{ return rep[0]; }
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const FT & b() const
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{ return rep[1]; }
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const FT & r_sq() const
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{ return rep[2]; }
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};
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template < typename FT >
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bool
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operator == ( const Polynomial_for_circles_2_2<FT> & p1,
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const Polynomial_for_circles_2_2<FT> & p2 )
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{
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return( (p1.a() == p2.a()) &&
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(p1.b() == p2.b()) &&
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(p1.r_sq() == p2.r_sq()) );
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}
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CGAL_END_NAMESPACE
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#endif //CGAL_ALGEBRAIC_KERNEL_POLYNOMIALS_2_2_H
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