/usr/include/CGAL/Triangle_3.h is in libcgal-dev 4.5-2.
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 | // 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_TRIANGLE_3_H
#define CGAL_TRIANGLE_3_H
#include <CGAL/assertions.h>
#include <boost/type_traits/is_same.hpp>
#include <CGAL/Kernel/Return_base_tag.h>
#include <CGAL/Bbox_3.h>
#include <CGAL/Dimension.h>
namespace CGAL {
template <class R_>
class Triangle_3 : public R_::Kernel_base::Triangle_3
{
typedef typename R_::RT RT;
typedef typename R_::FT FT;
typedef typename R_::Point_3 Point_3;
typedef typename R_::Plane_3 Plane_3;
typedef typename R_::Aff_transformation_3 Aff_transformation_3;
typedef Triangle_3 Self;
CGAL_static_assertion((boost::is_same<Self, typename R_::Triangle_3>::value));
public:
typedef Dimension_tag<3> Ambient_dimension;
typedef Dimension_tag<2> Feature_dimension;
typedef typename R_::Kernel_base::Triangle_3 Rep;
const Rep& rep() const
{
return *this;
}
Rep& rep()
{
return *this;
}
typedef R_ R;
Triangle_3() {}
Triangle_3(const Rep& t)
: Rep(t) {}
Triangle_3(const Point_3& p, const Point_3& q, const Point_3& r)
: Rep(typename R::Construct_triangle_3()(Return_base_tag(), p, q, r)) {}
Triangle_3 transform(const Aff_transformation_3 &t) const
{
return Triangle_3(t.transform(this->vertex(0)),
t.transform(this->vertex(1)),
t.transform(this->vertex(2)));
}
Plane_3 supporting_plane() const
{
return R().construct_supporting_plane_3_object()(*this);
}
bool has_on(const Point_3 &p) const
{
return R().has_on_3_object()(*this, p);
}
typename cpp11::result_of<typename R::Construct_vertex_3( Triangle_3, int )>::type
vertex(int i) const
{
return R().construct_vertex_3_object()(*this, i);
}
typename cpp11::result_of<typename R::Construct_vertex_3( Triangle_3, int )>::type
operator[](int i) const
{
return vertex(i);
}
bool is_degenerate() const
{
return R().is_degenerate_3_object()(*this);
}
Bbox_3
bbox() const
{
return R().construct_bbox_3_object()(*this);
}
FT squared_area() const // TODO : use Qrt
{
return R().compute_squared_area_3_object()(*this);
}
};
template < class R >
std::ostream &
operator<<(std::ostream &os, const Triangle_3<R> &t)
{
switch(os.iword(IO::mode)) {
case IO::ASCII :
return os << t[0] << ' ' << t[1] << ' ' << t[2];
case IO::BINARY :
return os << t[0] << t[1] << t[2];
default:
os << "Triangle_3(" << t[0] << ", " << t[1] << ", " << t[2] <<")";
return os;
}
}
template < class R >
std::istream &
operator>>(std::istream &is, Triangle_3<R> &t)
{
typename R::Point_3 p, q, r;
is >> p >> q >> r;
if (is)
t = Triangle_3<R>(p, q, r);
return is;
}
} //namespace CGAL
#endif // CGAL_TRIANGLE_3_H
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