Applanix LVX - Binary Output; Binary Data Types

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Item
Definition
Value
Units
rrr.rrr
Roll
-90 to +90
Degrees (with 3
decimal places)
ppp.ppp
Pitch
-90 to +90
Degrees ( with 3
decimal places)
hhh.hhh
Heading
0 to 359.999
Degrees ( with 3
decimal places)
*hh
Checksum
Hexadecimal
value (NRG)
N/A
<CRLF>
Carriage return &
line feed
<CRLF>
N/A
NRG stands for No Range Given.
Default time tag shall be coded as GPS time “G”
The same format applies for PAPLEVT2 message related to event 2.
6.2. Binary Output
6.2.1. Binary Data Types
The LVX stores numbers in Motorola format. The byte order of these numbers is the
opposite of what personal computers expect (Intel format). To supply or interpret binary
numbers (8-byte DOUBLES, 4-byte LONGS and 2-byte INTEGERS). Table 2 defines
integer data types.
Table 4: Integer Types
Type
Bytes
Value ( Signed )
Value (Unsigned)
CHAR
1
–128 to 127
0 to 255
SHORT
2
–32768 to 32767
0 to 65535
LONG
4
–2147483648 to 2147483647
0 to 4294967295