mirror of https://github.com/CGAL/cgal
133 lines
2.9 KiB
C++
133 lines
2.9 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.
|
|
//
|
|
// $Source$
|
|
// $Revision$ $Date$
|
|
// $Name$
|
|
//
|
|
// Author(s) : Andreas Fabri, Herve Bronnimann
|
|
|
|
#ifndef CGAL_CARTESIAN_POINT_2_H
|
|
#define CGAL_CARTESIAN_POINT_2_H
|
|
|
|
#include <CGAL/Origin.h>
|
|
#include <CGAL/Bbox_2.h>
|
|
#include <CGAL/Twotuple.h>
|
|
|
|
CGAL_BEGIN_NAMESPACE
|
|
|
|
template < class R_ >
|
|
class PointC2
|
|
{
|
|
typedef PointC2<R_> Self;
|
|
typedef typename R_::FT FT;
|
|
typedef typename R_::Vector_2 Vector_2;
|
|
typedef typename R_::Point_2 Point_2;
|
|
typedef typename R_::Aff_transformation_2 Aff_transformation_2;
|
|
|
|
typedef Twotuple<FT> Rep;
|
|
typedef typename R_::template Handle<Rep>::type Base;
|
|
|
|
Base base;
|
|
|
|
static FT one;
|
|
|
|
public:
|
|
typedef const FT* Cartesian_const_iterator;
|
|
|
|
typedef R_ R;
|
|
|
|
PointC2() {}
|
|
|
|
PointC2(const Origin &)
|
|
: base(FT(0), FT(0)) {}
|
|
|
|
PointC2(const FT &x, const FT &y)
|
|
: base(x, y) {}
|
|
|
|
PointC2(const FT &hx, const FT &hy, const FT &hw)
|
|
{
|
|
if (hw != FT(1))
|
|
base = Rep(hx/hw, hy/hw);
|
|
else
|
|
base = Rep(hx, hy);
|
|
}
|
|
|
|
const FT& x() const
|
|
{
|
|
return get(base).e0;
|
|
}
|
|
|
|
const FT& y() const
|
|
{
|
|
return get(base).e1;
|
|
}
|
|
|
|
const FT& hx() const
|
|
{
|
|
return x();
|
|
}
|
|
const FT& hy() const
|
|
{
|
|
return y();
|
|
}
|
|
const FT& hw() const
|
|
{
|
|
return one;
|
|
}
|
|
|
|
|
|
Cartesian_const_iterator cartesian_begin() const
|
|
{
|
|
return & get(base).e0;
|
|
}
|
|
|
|
Cartesian_const_iterator cartesian_end() const
|
|
{
|
|
const FT* ptr = & get(base).e1;
|
|
ptr++;
|
|
return ptr;
|
|
}
|
|
|
|
bool operator==(const PointC2 &p) const
|
|
{
|
|
if (CGAL::identical(base, p.base))
|
|
return true;
|
|
return equal_xy(*this, p);
|
|
}
|
|
bool operator!=(const PointC2 &p) const
|
|
{
|
|
return !(*this == p);
|
|
}
|
|
|
|
|
|
Point_2 transform(const Aff_transformation_2 &t) const
|
|
{
|
|
return t.transform(static_cast<const Point_2&>(*this));
|
|
}
|
|
};
|
|
|
|
template <class R >
|
|
typename R::FT PointC2<R>::one = 1;
|
|
|
|
|
|
|
|
|
|
CGAL_END_NAMESPACE
|
|
|
|
#endif // CGAL_CARTESIAN_POINT_2_H
|