mirror of https://github.com/CGAL/cgal
134 lines
3.1 KiB
C++
134 lines
3.1 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) : Andreas Fabri
|
|
|
|
#ifndef CGAL_CARTESIAN_DIRECTION_3_H
|
|
#define CGAL_CARTESIAN_DIRECTION_3_H
|
|
|
|
#include <CGAL/Threetuple.h>
|
|
#include <CGAL/Handle_for.h>
|
|
|
|
CGAL_BEGIN_NAMESPACE
|
|
|
|
template < class R_ >
|
|
class DirectionC3
|
|
{
|
|
typedef typename R_::FT FT;
|
|
typedef typename R_::Vector_3 Vector_3;
|
|
typedef typename R_::Line_3 Line_3;
|
|
typedef typename R_::Ray_3 Ray_3;
|
|
typedef typename R_::Segment_3 Segment_3;
|
|
typedef typename R_::Direction_3 Direction_3;
|
|
|
|
typedef Threetuple<FT> Rep;
|
|
typedef typename R_::template Handle<Rep>::type Base;
|
|
|
|
Base base;
|
|
|
|
public:
|
|
typedef R_ R;
|
|
|
|
DirectionC3() {}
|
|
|
|
DirectionC3(const Vector_3 &v)
|
|
: base(v.x(), v.y(), v.z()) {}
|
|
// { *this = v.direction(); }
|
|
|
|
DirectionC3(const Line_3 &l)
|
|
{ *this = l.rep().direction(); }
|
|
|
|
DirectionC3(const Ray_3 &r)
|
|
{ *this = r.direction(); }
|
|
|
|
DirectionC3(const Segment_3 &s)
|
|
{ *this = s.direction(); }
|
|
|
|
DirectionC3(const FT &x, const FT &y, const FT &z)
|
|
: base(x, y, z) {}
|
|
|
|
bool operator==(const DirectionC3 &d) const;
|
|
bool operator!=(const DirectionC3 &d) const;
|
|
|
|
Vector_3 to_vector() const;
|
|
Vector_3 vector() const { return to_vector(); }
|
|
|
|
const FT & dx() const
|
|
{
|
|
return get(base).e0;
|
|
}
|
|
const FT & dy() const
|
|
{
|
|
return get(base).e1;
|
|
}
|
|
const FT & dz() const
|
|
{
|
|
return get(base).e2;
|
|
}
|
|
|
|
const FT & hdx() const
|
|
{
|
|
return dx();
|
|
}
|
|
const FT & hdy() const
|
|
{
|
|
return dy();
|
|
}
|
|
const FT & hdz() const
|
|
{
|
|
return dz();
|
|
}
|
|
FT hw() const
|
|
{
|
|
return FT(1);
|
|
}
|
|
};
|
|
|
|
template < class R >
|
|
inline
|
|
bool
|
|
DirectionC3<R>::operator==(const DirectionC3<R> &d) const
|
|
{
|
|
if (CGAL::identical(base, d.base))
|
|
return true;
|
|
return equal_directionC3(dx(), dy(), dz(), d.dx(), d.dy(), d.dz());
|
|
}
|
|
|
|
template < class R >
|
|
inline
|
|
bool
|
|
DirectionC3<R>::operator!=(const DirectionC3<R> &d) const
|
|
{
|
|
return !(*this == d);
|
|
}
|
|
|
|
template < class R >
|
|
inline
|
|
typename DirectionC3<R>::Vector_3
|
|
DirectionC3<R>::to_vector() const
|
|
{
|
|
return Vector_3(dx(), dy(), dz());
|
|
}
|
|
|
|
CGAL_END_NAMESPACE
|
|
|
|
#endif // CGAL_CARTESIAN_DIRECTION_3_H
|