Graph ics Co mm an d Set
Table 79. Write Graphics Defaults
Description Value
Color Black
Line Type Solid
Line Width Normal (1 pel)
Character Cell 19 High by 21 Wide X 1/144 inches
Character Set Selected via Op Panel
Character Angle No Rotation
Character Direction Left to Right
Marker Symbol Cross
Pattern Symbol Solid Shading
Current Position X,Y = 0,0
Arc Parameters P=Q=1; R=S=0
Foreground Mix Overpaint
Background Mix Leave Alone
Character Precision Character Precision
Marker Precision Character Precision
Marker Symbol Set Resident Set in Printer
Begin Segment Introducer (BSI)
The Begin Segment Introducer precedes all of the drawing orders that are
together in the graphics segment. The following chart shows the format of the
BSI:
BSI One or More Drawing Orders
Table 80. Begin Segment Introducer
Byte Value Description Error Code
0 X'70' Begin Segment code
1 X'0C' or X'0E' Length of the following parameters X'0370..C1'
2-5 Segment ID (Ignored)
6 X'00' Reserved
7
Bit 0 0
Bits 1-2 00
Bit 3 0/1
Bit 4 0
Bits 5-6 00
10
11
Bit 7 0
Flags
UNCHAIN
CHPOS
No Prolog (0); Prolog (1)
Reserved
New Segment (reinitialize graphics defaults)
Replace
Append Segment (do not reinitialize defaults)
DATAFL
X'0370..01'
X'0370..82'
8-9 X'0000'-X'FFFF' Length of this segment (SEGLEN)
10-13 X'00000000' P/SNAME
14-End See “Drawing Orders” on page 97
Chapter 3. IPDS Commands Reference 95
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