4.23. UNIT’S TAIP REFERENCE
4.23.10
(GR) Regions
Qualifiers
:
Q
,
S
,
R
Use this message to create/edit polygon-defined regions. Managing
a region is different than managing any other configuration parame-
ter, this because a region can’t be defined only with one
GR
message,
instead, several messages are used to create a region, one for every
point the region has. So when you use a
GR
message, you are creating
or editing only a region’s point.
The
Active Flag
of the message is used to set the last point of a
region. To undefine a region simply set the
Active Flag
of the first or
second point
to
U
. The message has the following format:
AABBCDDDEEEEEFFFFGGGGGHHII
Chars
Item
Format
Value
Meaning
2
Region
index
AA
0-29
Region index of the point that is being
configured.
2
Point in-
dex
BB
00-49
Point index.
1
Last
point
flag
C
flag
Use:
1:
The actual point is not the last
point of the region.
U:
The actual point is the last point
of the region. Use this flag on
points
00
or
01
to undefine a
region.
8
Point’s
latitude
DDD.EEEEE
degrees
WGS-84 point’s latitude. It does include
sign:
Positive for north
.
9
Point’s
longitude
FFFF.GGGGG
degrees
WGS-84 point’s longitude.
It does in-
clude sign:
Positive for east
.
2
Point’s
left
neighbor
1
HH
00-49,99
Index of the first
left neighbor
of the ac-
tual point.
Use
99
to leave this field
empty.
Check the explanation after this
table
.
2
Point’s
left
neighbor
2
II
00-49,99
Index of the second
left neighbor
of the
actual point. Use
99
to leave this field
empty.
Check the explanation after this
table
.
13
A polygon is defined by a minimum of three points
136
