blob: 2080900dc889e62041f49edc4f2f30ea88d396d1 (
plain)
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
|
/* This file is part of the Gudhi Library. The Gudhi library
* (Geometric Understanding in Higher Dimensions) is a generic C++
* library for computational topology.
*
* Author(s): Francois Godi
*
* Copyright (C) 2015 INRIA Sophia-Antipolis (France)
*
* This program is free software: 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SRC_BOTTLENECK_INCLUDE_GUDHI_INTERNAL_POINT_H_
#define SRC_BOTTLENECK_INCLUDE_GUDHI_INTERNAL_POINT_H_
namespace Gudhi {
namespace Bottleneck_distance {
/** \internal \brief Returns the used index for encoding none of the points */
int null_point_index();
/** \internal \typedef \brief Internal_point is the internal points representation, indexes used outside. */
struct Internal_point {
double vec[2];
int point_index;
Internal_point() {}
Internal_point(double x, double y, int p_i = null_point_index()) { vec[0]=x; vec[1]=y; point_index = p_i; }
double x() const { return vec[ 0 ]; }
double y() const { return vec[ 1 ]; }
double& x() { return vec[ 0 ]; }
double& y() { return vec[ 1 ]; }
bool operator==(const Internal_point& p) const
{
return point_index==p.point_index;
}
bool operator!=(const Internal_point& p) const { return ! (*this == p); }
/*
Useless
friend void swap(Internal_point& a, Internal_point& b)
{
using std::swap;
double x_tmp = a.vec[0];
double y_tmp = a.vec[1];
int pi_tmp = a.point_index;
a.vec[0] = b.vec[0];
a.vec[1] = b.vec[1];
a.point_index = b.point_index;
b.vec[0] = x_tmp;
b.vec[1] = y_tmp;
b.point_index = pi_tmp;
}
*/
};
inline int null_point_index() {
return -1;
}
} // namespace Bottleneck_distance
} // namespace Gudhi
#endif // SRC_BOTTLENECK_INCLUDE_GUDHI_INTERNAL_POINT_H_
|