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
|
// 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)
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/Kernel_23/include/CGAL/Line_3.h $
// $Id: include/CGAL/Line_3.h b26b07a1242 $
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Andreas Fabri
// Stefan Schirra
#ifndef CGAL_LINE_3_H
#define CGAL_LINE_3_H
#include <CGAL/assertions.h>
#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_::Boolean Boolean;
typedef typename R_::FT FT;
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;
static_assert(std::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(Rep&& l)
: Rep(std::move(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);
}
Boolean 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);
}
Point_3 point(const FT 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);
}
Boolean 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(IO::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
|
