99 lines
2.6 KiB
C
99 lines
2.6 KiB
C
|
// Copyright (c) 1997-2000
|
||
|
|
// Utrecht University (The Netherlands),
|
||
|
|
// ETH Zurich (Switzerland),
|
||
|
|
// INRIA Sophia-Antipolis (France),
|
||
|
|
// Max-Planck-Institute Saarbruecken (Germany),
|
||
|
|
// 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; 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.
|
||
|
|
//
|
||
|
|
// $URL$
|
||
|
|
// $Id$
|
||
|
|
// SPDX-License-Identifier: LGPL-3.0+
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// Author(s) : Michael Seel <seel@mpi-sb.mpg.de>
|
||
|
|
#ifndef CGAL_PAIR_D_H
|
||
|
|
#define CGAL_PAIR_D_H
|
||
|
|
|
||
|
|
#include <CGAL/basic.h>
|
||
|
|
#include <CGAL/Handle_for.h>
|
||
|
|
|
||
|
|
namespace CGAL {
|
||
|
|
|
||
|
|
template <class R> class Segment_d;
|
||
|
|
template <class R> class Ray_d;
|
||
|
|
template <class R> class Line_d;
|
||
|
|
|
||
|
|
template <class R>
|
||
|
|
class Pair_d
|
||
|
|
{
|
||
|
|
typedef Pair_d<R> Self;
|
||
|
|
typedef typename R::Point_d Point_d;
|
||
|
|
typedef typename R::Vector_d Vector_d;
|
||
|
|
typedef typename R::Direction_d Direction_d;
|
||
|
|
Point_d _p[2];
|
||
|
|
|
||
|
|
friend class Line_d<R>;
|
||
|
|
friend class Ray_d<R>;
|
||
|
|
friend class Segment_d<R>;
|
||
|
|
|
||
|
|
/* Any line object in $d$ - space is defined by two points |_p1| and |_p2|
|
||
|
|
respectively. There exists an orientation from _p1 to _p2. */
|
||
|
|
|
||
|
|
public:
|
||
|
|
Pair_d(int d = 0) { _p[0]=_p[1]=Point_d(d); }
|
||
|
|
|
||
|
|
Pair_d(const Point_d& p, const Point_d& q)
|
||
|
|
{ CGAL_assertion_msg((p.dimension() == q.dimension()),
|
||
|
|
"Pair_d::constructor: source and target must have the same dimension.");
|
||
|
|
_p[0]=p; _p[1]=q;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool is_degenerate() const
|
||
|
|
{ return (_p[0] == _p[1]); }
|
||
|
|
|
||
|
|
Vector_d vector() const
|
||
|
|
{ return (_p[1] - _p[0]); }
|
||
|
|
|
||
|
|
Direction_d direction() const
|
||
|
|
{ return vector().direction(); }
|
||
|
|
|
||
|
|
void read(std::istream& is)
|
||
|
|
{
|
||
|
|
switch( get_mode(is) ) {
|
||
|
|
case CGAL::IO::ASCII :
|
||
|
|
is >> _p[0] >> _p[1]; break;
|
||
|
|
case CGAL::IO::BINARY :
|
||
|
|
CGAL::read(is, _p[0]); CGAL::read(is, _p[1]); break;
|
||
|
|
default:
|
||
|
|
CGAL_error_msg("\nStream must be in ascii or binary mode\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void print(std::ostream& os, const char* _name) const
|
||
|
|
{
|
||
|
|
switch( get_mode(os) ) {
|
||
|
|
case CGAL::IO::ASCII :
|
||
|
|
os << _p[0] << " " << _p[1]; break;
|
||
|
|
case CGAL::IO::BINARY :
|
||
|
|
CGAL::write(os, _p[0]); CGAL::write(os, _p[1]); break;
|
||
|
|
default :
|
||
|
|
os << _name << "(" << _p[0] << ", " << _p[1] << ")"; break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}; // Pair_d<R>
|
||
|
|
|
||
|
|
} //namespace CGAL
|
||
|
|
#endif //CGAL_PAIR_D_H
|