/usr/include/CGAL/Circle_3.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 | // Copyright (c) 2005-2006 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 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.
//
// Partially supported by the IST Programme of the EU as a Shared-cost
// RTD (FET Open) Project under Contract No IST-2000-26473
// (ECG - Effective Computational Geometry for Curves and Surfaces)
// and a STREP (FET Open) Project under Contract No IST-006413
// (ACS -- Algorithms for Complex Shapes)
//
// $URL$
// $Id$
//
// Author(s) : Monique Teillaud <Monique.Teillaud@sophia.inria.fr>
// Sylvain Pion
// Pedro Machado <tashimir@gmail.com>
// Julien Hazebrouck
// Damien Leroy
#ifndef CGAL_CIRCLE_3_H
#define CGAL_CIRCLE_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/representation_tags.h>
#include <CGAL/Dimension.h>
namespace CGAL {
template <class R_>
class Circle_3
: public R_::Kernel_base::Circle_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_::Vector_3 Vector_3;
typedef typename R_::Sphere_3 Sphere_3;
typedef typename R_::Direction_3 Direction_3;
typedef Circle_3 Self;
CGAL_static_assertion((boost::is_same<Self, typename R_::Circle_3>::value));
public:
typedef Dimension_tag<3> Ambient_dimension;
typedef Dimension_tag<1> Feature_dimension;
typedef typename R_::Kernel_base::Circle_3 Rep;
typedef R_ R;
const Rep& rep() const
{
return *this;
}
Rep& rep()
{
return *this;
}
Circle_3() {}
Circle_3(const Sphere_3& s, const Plane_3& p, int a)
: Rep(typename R::Construct_circle_3()(s,p,a)) {}
Circle_3(const Point_3& c, const FT& sr, const Plane_3& p)
: Rep(typename R::Construct_circle_3()(c,sr,p)) {}
Circle_3(const Point_3& c, const FT& sr, const Direction_3& d)
: Rep(typename R::Construct_circle_3()(c,sr,d)) {}
Circle_3(const Point_3& c, const FT& sr, const Vector_3& v)
: Rep(typename R::Construct_circle_3()(c,sr,v)) {}
Circle_3(const Sphere_3& s1, const Sphere_3& s2)
: Rep(typename R::Construct_circle_3()(s1,s2)) {}
Circle_3(const Sphere_3& s, const Plane_3& p)
: Rep(typename R::Construct_circle_3()(s,p)) {}
Circle_3(const Plane_3& p, const Sphere_3& s)
: Rep(typename R::Construct_circle_3()(p,s)) {}
Circle_3(const Point_3& p1, const Point_3& p2, const Point_3& p3)
: Rep(typename R::Construct_circle_3()(p1,p2,p3)) {}
Circle_3(const Rep& r)
: Rep(r) {}
typename cpp11::result_of
<typename R::Construct_sphere_3( Circle_3)>::type
diametral_sphere() const
{
return typename R::Construct_sphere_3()(*this);
}
Point_3 center() const
{
return typename R::Construct_sphere_3()(*this).center();
}
FT squared_radius() const
{
return typename R::Construct_sphere_3()(*this).squared_radius();
}
typename cpp11::result_of
<typename R::Construct_plane_3( Circle_3)>::type
supporting_plane() const
{
return typename R::Construct_plane_3()(*this);
}
Bbox_3 bbox() const
{
return typename R::Construct_bbox_3()(*this);
}
FT area_divided_by_pi() const
{
return typename R::Compute_area_divided_by_pi_3()(*this);
}
double approximate_area() const
{
return typename R::Compute_approximate_area_3()(*this);
}
FT squared_length_divided_by_pi_square() const
{
return typename R::Compute_squared_length_divided_by_pi_square_3()(*this);
}
double approximate_squared_length() const
{
return typename R::Compute_approximate_squared_length_3()(*this);
}
typename R::Boolean
has_on(const Point_3 &p) const
{
return typename R::Has_on_3()(*this, p);
}
};
template < typename R >
inline
bool
operator==(const Circle_3<R> &p,
const Circle_3<R> &q)
{
return R().equal_3_object()(p, q);
}
template < typename R >
inline
bool
operator!=(const Circle_3<R> &p,
const Circle_3<R> &q)
{
return ! (p == q);
}
template < typename R >
std::ostream &
operator<<(std::ostream & os, const Circle_3<R> &c)
{
return os << c.supporting_plane() << " "
<< c.diametral_sphere() << " ";
}
template < typename R >
std::istream &
operator>>(std::istream & is, Circle_3<R> &c)
{
typename R::Plane_3 p;
typename R::Sphere_3 s;
is >> p >> s ;
if (is)
c = Circle_3<R>(p, s);
return is;
}
} //namespace CGAL
#endif // CGAL_CIRCLE_3_H
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