User`s guide

Decimal Hex Value Description
0-1 0-1 001C - (n + 1) Length of this Structured Field
2-3 2-3 A6BB Structured Field ID
4 4 00 Unit Base (10 in.)
01 Unit Base (10 cm)
5 5 00 Reserved
6-7 6-7 05A0 - 7FFF Units per Unit Base (10 in.) (See Note)
1626 - 7FFF Units per Unit Base (10 cm) (See Note)
8-9 8-9 05A0 - 7FFF Units per Unit Base (10 in.) (See Note)
1626 - 7FFF Units per Unit Base (10 cm) (See Note)
10-13 A-D 00000000 Reserved
14-15 E-F 8000 - 7FFF X Left Limit of the Graphic Window in GPS coordinate units
16-17 10-11 8000 - 7FFF X Right Limit of the Graphic Window in GPS coordinate units
18-19 12-13 8000 - 7FFF Y Top Limit of the Graphic Window in GPS coordinate units
20-21 14-15 8000 - 7FFF Y Bottom Limit of the Graphic Window in GPS coordinate units
22-25 16-19 00000000 Reserved
26-27 1A-1B 0000 Graphics Flags - Ignored
28-n 1C-n Initial Graphic Default Conditions - Self-Describing Instructions
that Set the Drawing Defaults for the Picture (See Note)
(Optional field)
Note: See “Self-Describing Instructions” on page 156. Figure 22 on page 153shows the Graphic Data Descriptor
control parameters specifying the size of the graphic window.
152 Programmer Manual