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
|
---
layout: page
title: Specification > Trajectory
header: Pages
---
{% include JB/setup %}
## Summary
The TRAJECTORY message type support to transfer information about 3D trajectory, which is often used in surgical planning and guidance in image-guided therapy.
## Message Types
### TRAJ
<table border="1" cellpadding="5" cellspacing="0" align="center">
<tbody><tr>
<td style="background:#e0e0e0;"> Data
</td><td style="background:#e0e0e0;"> Type
</td><td style="background:#e0e0e0;"> Description
</td></tr>
<tr>
<td align="left"> Name
</td><td align="left"> char[64]
</td><td align="left"> Name or description of the trajectory.
</td></tr>
<tr>
<td align="left"> Group name
</td><td align="left"> char[32]
</td><td align="left"> Can be "Trajectory", ...
</td></tr>
<tr>
<td align="left"> Type
</td><td align="left"> 8 bit unsigned
</td><td align="left"> 1: trajectory with only entry point, 2: trajectory with only target point, 3: trajectory with entry and target point
</td></tr>
<tr>
<td align="left"> --
</td><td align="left"> 8 bit unsigned
</td><td align="left"> Reserved
</td></tr>
<tr>
<td align="left"> R,G,B,A
</td><td align="left"> 8 bit unsigned
</td><td align="left"> Color in RGBA
</td></tr>
<tr>
<td align="left"> X1,Y1,Z1
</td><td align="left"> 32 bit float
</td><td align="left"> Entry point of the trajectory
</td></tr>
<tr>
<td align="left"> X2,Y2,Z2
</td><td align="left"> 32 bit float
</td><td align="left"> Target point of a trajectory
</td></tr>
<tr>
<td align="left"> Diameter
</td><td align="left"> 32 bit float
</td><td align="left"> Diameter of trajectory, can be 0
</td></tr>
<tr>
<td align="left"> Owner image
</td><td align="left"> char[20]
</td><td align="left"> Id of the owner image/sliceset. Trajectories from different slicesets can be sent if slicesets are fused.
</td></tr>
</tbody></table>
### GET_TRAJ
<table border="1" cellpadding="5" cellspacing="0" align="center">
<tbody><tr>
<td style="background:#e0e0e0;"> Data
</td><td style="background:#e0e0e0;"> Type
</td><td style="background:#e0e0e0;"> Description
</td></tr>
</tbody></table>
### STT_TRAJ
N/A
### STP_TRAJ
N/A
## Implementations
TRAJECTORY message type is implemented in the following source code.
* [igtlTrajectoryMessage.h](https://github.com/openigtlink/OpenIGTLink/blob/master/Source/igtlTrajectoryMessage.h)
* [igtlTrajectoryMessage.cxx](https://github.com/openigtlink/OpenIGTLink/blob/master/Source/igtlTrajectoryMessage.cxx)
## Contributors
* Alexander Schaal
|
