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
|
/* Copyright (c) 2008-2025 the MRtrix3 contributors.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Covered Software is provided under this License on an "as is"
* basis, without warranty of any kind, either expressed, implied, or
* statutory, including, without limitation, warranties that the
* Covered Software is free of defects, merchantable, fit for a
* particular purpose or non-infringing.
* See the Mozilla Public License v. 2.0 for more details.
*
* For more details, see http://www.mrtrix.org/.
*/
#include "metadata/bids.h"
#include "exception.h"
#include "mrtrix.h"
namespace MR {
namespace Metadata {
namespace BIDS {
std::string vector2axisid(const axis_vector_type &dir) {
if (dir[0] == -1) {
assert(!dir[1]);
assert(!dir[2]);
return "i-";
}
if (dir[0] == 1) {
assert(!dir[1]);
assert(!dir[2]);
return "i";
}
if (dir[1] == -1) {
assert(!dir[0]);
assert(!dir[2]);
return "j-";
}
if (dir[1] == 1) {
assert(!dir[0]);
assert(!dir[2]);
return "j";
}
if (dir[2] == -1) {
assert(!dir[0]);
assert(!dir[1]);
return "k-";
}
if (dir[2] == 1) {
assert(!dir[0]);
assert(!dir[1]);
return "k";
}
throw Exception("Malformed image axis vector: \"" + str(dir.transpose()) + "\"");
}
axis_vector_type axisid2vector(const std::string &id) {
if (id == "i-")
return {-1, 0, 0};
if (id == "i")
return {1, 0, 0};
if (id == "j-")
return {0, -1, 0};
if (id == "j")
return {0, 1, 0};
if (id == "k-")
return {0, 0, -1};
if (id == "k")
return {0, 0, 1};
throw Exception("Malformed image axis identifier: \"" + id + "\"");
}
}
}
}
|
