Reference Point Offsets Packet - Advanced Navigation Spatial Reference Manual

13.10.14

Reference Point Offsets Packet

The reference point offsets packet can be used to adjust the measurement point that
all data is referenced to. By default all the values of this packet are zero and the
measurement point that all data is referenced to is the centre of the Spatial unit. The
primary reference point offset can be used to adjust the measurement point to a
different location on the vehicle. The primary reference point offset applies to all data
output including NMEA etc as well as heave point 1. The other heave point offsets
apply only to heave points 2-4 in the Heave Packet.
Packet ID
Length
Field Bytes
# Offset
1 0
2 1
3 5
4 9
5 13
6 17
7 21
8 25
9 29
10 33
11 37
12 41
13 45
Table 114: Reference point offsets packet
Reference Point Offsets Packet
Data Size
Type
u8 1
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
fp32 4
Spatial Reference Manual
Page 154 of 158
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49
Description
Permanent
Primary reference point offset X (m)
Primary reference point offset Y (m)
Primary reference point offset Z (m)
Heave point 2 offset X (m)
Heave point 2 offset Y (m)
Heave point 2 offset Z (m)
Heave point 3 offset X (m)
Heave point 3 offset Y (m)
Heave point 3 offset Z (m)
Heave point 4 offset X (m)
Heave point 4 offset Y (m)
Heave point 4 offset Z (m)
Version 4.4
04/06/2019