/usr/include/CGAL/Weighted_point.h is in libcgal-dev 4.7-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | // Copyright (c) 1999-2004 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) : Mariette Yvinec
// Sylvain Pion
#ifndef CGAL_WEIGHTED_POINT_H
#define CGAL_WEIGHTED_POINT_H
#include <iostream>
#include <CGAL/Kernel_traits.h>
#include <CGAL/Dimension.h>
#include <boost/utility/enable_if.hpp>
#include <boost/type_traits/is_convertible.hpp>
#include <boost/mpl/and.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/logical.hpp>
namespace CGAL {
template < class Pt, class We >
class Weighted_point : public Pt
{
typedef typename Kernel_traits<Pt>::Kernel::FT FT;
public:
typedef We Weight;
typedef Pt Point;
Weighted_point ()
: Point(), _weight(0) {}
//explicit
Weighted_point (const Point &p)
: Point(p), _weight(0)
{
// CGAL_error_msg( "Warning : truncated weight !!!");
}
Weighted_point (const Point &p, const Weight &w)
: Point(p), _weight(w) {}
// Constructors from coordinates are also provided for convenience, except
// that they are only from Cartesian coordinates, and with no weight, so as
// to avoid any potential ambiguity between the homogeneous weight and the
// power weight (it should be easy enough to pass a Point explicitly in those
// cases).
// The enable_if complexity comes from the fact that we separate dimension 2 and 3.
template < typename Tx, typename Ty >
Weighted_point (const Tx &x, const Ty &y,
typename boost::enable_if< boost::mpl::and_<boost::is_convertible<Tx, FT>,
boost::is_convertible<Ty, FT>,
boost::mpl::bool_<CGAL::Ambient_dimension<Point>::value == 2> > >::type* = 0)
: Point(x, y), _weight(0) {}
template < typename Tx, typename Ty, typename Tz >
Weighted_point (const Tx &x, const Ty &y, const Tz &z,
typename boost::enable_if< boost::mpl::and_<boost::is_convertible<Tx, FT>,
boost::is_convertible<Ty, FT>,
boost::is_convertible<Tz, FT>,
boost::mpl::bool_<CGAL::Ambient_dimension<Point>::value == 3> > >::type* = 0)
: Point(x, y, z), _weight(0) {}
const Point & point() const
{
return *this;
}
const Weight & weight() const
{
return _weight;
}
// The following power() member functions are not used at the moment.
// They belong to the traits class anyway.
//
// Weight power(const Point &p)
// {
// return squared_distance(*this, p) - weight();
// }
//
// Weight power(const Weighted_point &p)
// {
// return squared_distance(*this, p) - weight() - p.weight();
// }
private:
Weight _weight;
};
template < class Point, class Weight >
std::ostream &
operator<<(std::ostream &os, const Weighted_point<Point,Weight> &p)
{
switch(os.iword(IO::mode))
{
case IO::ASCII :
return os << p.point() << " " << p.weight();
case IO::BINARY :
os << p.point();
write(os, p.weight());
return os;
default:
return os << "Weighted_point(" << p.point() << ", " << p.weight() << ")";
}
}
template < class Point, class Weight >
std::istream &
operator>>(std::istream &is, Weighted_point<Point,Weight> &wp)
{
Weight w;
Point p;
is >> p;
if(!is) return is;
if(is_ascii(is))
is >> w;
else
read(is, w);
if (is)
wp = Weighted_point<Point,Weight>(p,w);
return is;
}
} // namespace CGAL
#endif // CGAL_WEIGHTED_POINT_H
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