blob: e5c79dedf4c7dd01912852d4595ac5530639a6e9 (
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
|
/* 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): Clément Maria
*
* Copyright (C) 2014 INRIA Sophia Antipolis-Méditerranée (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 DISTANCE_FUNCTIONS_H_
#define DISTANCE_FUNCTIONS_H_
/* Compute the Euclidean distance between two Points given
* by a range of coordinates. The points are assumed to have
* the same dimension. */
template< typename Point >
double euclidean_distance(Point &p1, Point &p2) {
double dist = 0.;
auto it1 = p1.begin();
auto it2 = p2.begin();
for (; it1 != p1.end(); ++it1, ++it2) {
double tmp = *it1 - *it2;
dist += tmp*tmp;
}
return sqrt(dist);
}
#endif // DISTANCE_FUNCTIONS_H_
|