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Removed Alpha_shape_2 obsolete include 

squared_radius_smallest_orthogonal_circle_2() is now a kernel functor
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Mael Rouxel-Labbé 2017-04-19 11:08:20 +02:00
parent dd2e7f3a0c
commit 046058fabe
1 changed files with 0 additions and 80 deletions
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Alpha_shapes_2/include/CGAL/constructions/squared_radius_smallest_orthogonalcircle_ftC2.h
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// Copyright (c) 1997 INRIA Sophia-Antipolis (France).
// 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) : Tran Kai Frank DA <Frank.Da@sophia.inria.fr>
#ifndef CGAL_SQUARED_RADIUS_SMALLEST_ORTHOGONALCIRCLE_FTC2_H
#define CGAL_SQUARED_RADIUS_SMALLEST_ORTHOGONALCIRCLE_FTC2_H
#include <CGAL/license/Alpha_shapes_2.h>
#include <CGAL/determinant.h>
#include <CGAL/enum.h>
//-------------------------------------------------------------------
namespace CGAL {
//-------------------------------------------------------------------
template< class FT >
CGAL_MEDIUM_INLINE
FT
squared_radius_orthogonalcircleC2(
const FT &px, const FT &py, const FT &pw,
const FT &qx, const FT &qy, const FT &qw,
const FT &rx, const FT &ry, const FT &rw)
{
FT FT4(4);
FT dpx = px-rx;
FT dpy = py-ry;
FT dqx = qx-rx;
FT dqy = qy-ry;
FT dpp = CGAL_NTS square(dpx)+CGAL_NTS square(dpy)-pw+rw;
FT dqq = CGAL_NTS square(dqx)+CGAL_NTS square(dqy)-qw+rw;
FT det0 = determinant(dpx, dpy, dqx, dqy);
FT det1 = determinant(dpp, dpy, dqq, dqy);
FT det2 = determinant(dpx, dpp, dqx, dqq);
return
(CGAL_NTS square(det1)+CGAL_NTS square(det2))/
(FT4*CGAL_NTS square(det0)) - rw;
}
template< class FT >
CGAL_MEDIUM_INLINE
FT
squared_radius_smallest_orthogonalcircleC2(
const FT &px, const FT &py, const FT &pw,
const FT &qx, const FT &qy, const FT &qw)
{
FT FT4(4);
FT dpz = CGAL_NTS square(px-qx)+CGAL_NTS square(py-qy);
return (CGAL_NTS square(dpz-pw+qw)/(FT4*dpz)-qw);
}
//-------------------------------------------------------------------
} //namespace CGAL
//-------------------------------------------------------------------
#endif //CGAL_SQUARED_RADIUS_SMALLEST_ORTHOGONALCIRCLE_ftC2_H