ASTRO VG-871 - GRACIRC4 [28 H 45 H]: Graphic Plane Circle Drawing

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3.20 GRACIRC4 [28H 45H]: Graphic Plane Circle Drawing
Function ： This command draws circle on the graphic plane
Sequence ： Type 2
Command ：
STX
1 BYTE
02H
VG4CMD
1 BYTE
FDH
GRACIRC4
2 BYTE
28H 45H
Center X coordinate
2 to 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical terms
,
1 BYTE
2CH (Delimiter)
Center Y coordinate
2 to 5 BYTE
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical terms
,
1 BYTE
2CH (Delimiter)
Radius
1 to 4 BYTE
"1" to "4095"
,
1 BYTE
2CH (Delimiter)
Color
1 to 3 BYTE
"0" to "255" *Note
ETX
1 BYTE
03H
Figure 3-20-1
Note : by executing “GRAPAL4 [28H 4EH] Graphic Palette Mode”, it can set in a
range of 0 to 4095.
PC
VG
STX～ETX
ACK or STX + ESTS + Error
code +ETX