/usr/include/CGAL/Line_3.h is in libcgal-dev 4.11-2build1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | // Copyright (c) 1999
// 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.
//
// $URL$
// $Id$
//
//
// Author(s) : Andreas Fabri
// Stefan Schirra
#ifndef CGAL_LINE_3_H
#define CGAL_LINE_3_H
#include <CGAL/assertions.h>
#include <boost/type_traits/is_same.hpp>
#include <CGAL/Kernel/Return_base_tag.h>
#include <CGAL/Dimension.h>
#include <CGAL/IO/io.h>
namespace CGAL {
template <class R_>
class Line_3 : public R_::Kernel_base::Line_3
{
typedef typename R_::RT RT;
typedef typename R_::Point_3 Point_3;
typedef typename R_::Ray_3 Ray_3;
typedef typename R_::Segment_3 Segment_3;
typedef typename R_::Direction_3 Direction_3;
typedef typename R_::Vector_3 Vector_3;
typedef typename R_::Plane_3 Plane_3;
typedef typename R_::Aff_transformation_3 Aff_transformation_3;
typedef Line_3 Self;
CGAL_static_assertion((boost::is_same<Self, typename R_::Line_3>::value));
public:
typedef Dimension_tag<3> Ambient_dimension;
typedef Dimension_tag<1> Feature_dimension;
typedef typename R_::Kernel_base::Line_3 Rep;
const Rep& rep() const
{
return *this;
}
Rep& rep()
{
return *this;
}
typedef R_ R;
Line_3() {}
// conversion impl -> interface class
Line_3(const Rep& l)
: Rep(l) {}
Line_3(const Point_3 & p, const Point_3 & q)
: Rep(typename R::Construct_line_3()(Return_base_tag(), p, q)) {}
explicit Line_3(const Segment_3 & s)
: Rep(typename R::Construct_line_3()(Return_base_tag(), s)) {}
explicit Line_3(const Ray_3 & r)
: Rep(typename R::Construct_line_3()(Return_base_tag(), r)) {}
Line_3(const Point_3 & p, const Direction_3 & d)
: Rep(typename R::Construct_line_3()(Return_base_tag(), p, d)) {}
Line_3(const Point_3 & p, const Vector_3 & v)
: Rep(typename R::Construct_line_3()(Return_base_tag(), p, v)) {}
Line_3 transform(const Aff_transformation_3 &t) const
{
return Line_3(t.transform(this->point()), t.transform(this->direction()));
}
Vector_3 to_vector() const
{
return R().construct_vector_3_object()(*this);
}
Direction_3 direction() const
{
return R().construct_direction_3_object()(*this);
}
bool has_on(const Point_3 &p) const
{
return R().has_on_3_object()(*this, p);
//return has_on_boundary(p);
}
Point_3 point() const
{
return R().construct_point_on_3_object()(*this, 0);
}
Point_3 point(int i) const
{
return R().construct_point_on_3_object()(*this, i);
}
Line_3 opposite() const
{
return R().construct_opposite_line_3_object()(*this);
}
Plane_3 perpendicular_plane(const Point_3 &p) const
{
return R().construct_perpendicular_plane_3_object()(*this, p);
}
Point_3 projection(const Point_3 &p) const
{
return R().construct_projected_point_3_object()(*this, p);
}
bool is_degenerate() const
{
return R().is_degenerate_3_object()(*this);
}
};
template < class R >
std::ostream &
operator<<(std::ostream &os, const Line_3<R> &l)
{
switch(get_mode(os)) {
case IO::ASCII :
return os << l.point(0) << ' ' << l.point(1);
case IO::BINARY :
return os << l.point(0) << l.point(1);
default:
return os << "Line_3(" << l.point(0) << ", " << l.point(1) << ")";
}
}
template < class R >
std::istream &
operator>>(std::istream &is, Line_3<R> &l)
{
typename R::Point_3 p, q;
is >> p >> q;
if (is)
l = Line_3<R>(p, q);
return is;
}
} //namespace CGAL
#endif // CGAL_LINE_3_H
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