cgal/Cartesian_kernel/include/CGAL/Cartesian/line_constructions_2.h

55 lines
1.7 KiB
C++

// Copyright (c) 2000 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.
//
// $URL$
// $Id$
//
//
// Author(s) : Herve Bronnimann
#ifndef CGAL_CARTESIAN_LINE_CONSTRUCTIONS_2_H
#define CGAL_CARTESIAN_LINE_CONSTRUCTIONS_2_H
#include <CGAL/Cartesian/Point_2.h>
#include <CGAL/Cartesian/Line_2.h>
namespace CGAL {
template < class K >
inline
LineC2<K>
line_from_point_direction(const PointC2<K> &p,
const DirectionC2<K> &d)
{
return K().construct_line_2_object()(p, d);
}
template < class K >
inline
LineC2<K>
perpendicular_through_point(const LineC2<K> &l,
const PointC2<K> &p)
{
typename K::FT a, b, c;
perpendicular_through_pointC2(l.a(), l.b(), p.x(), p.y(), a, b, c);
return LineC2<K>(a, b, c);
}
} //namespace CGAL
#endif // CGAL_CARTESIAN_LINE_CONSTRUCTIONS_2_H