ASTRO VG-871 - CHATRIPA4 [28 H 2 AH]: Character Plane Filled-In Triangle Drawing

Chapter 4 INDIVIDUAL FORMATS FOR CONTROL COMMANDS
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3.11 CHATRIPA4 [28H 2AH]: Character plane filled-in
triangle drawing
Function: This command draws a filled-in triangle on the character plane.
Sequence: Type 2
Command:
STX
1 byte
02H
VG4CMD
1 byte
FDH
CHATRIPA4
2 bytes
28H 2AH
Coordinate X1
2 to 5 bytes
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
* -2048 (“12048”) to +4096 (“04095”) in numerical
terms
,
1 byte
2CH (Delimiter)
Coordinate Y1
2 to 5 bytes
Sign code + “0” to “4095”
Sign code: “0” = +, “1” = -
* -2048 (“12048”) to +4096 (“04095”) in numerical
terms
,
1 byte
2CH (Delimiter)
Coordinate X2
2 to 5 bytes
Same as coordinate X1
,
1 byte
2CH (Delimiter)
Coordinate Y2
2 to 5 bytes
Same as coordinate Y1
,
1 byte
2CH (Delimiter)
Coordinate X3
2 to 5 bytes
Same as coordinate X1
,
1 byte
2CH (Delimiter)
Coordinate Y3
2 to 5 bytes
Same as coordinate Y1
,
1 byte
2CH (Delimiter)
Drawing mode
1 byte
“0” = Clear, “1” = Set
ETX
1 byte
03H
Fig. 3-11-1
When the drawing mode setting is omitted as below, the dot is drawn in the Set mode.
STX
1 byte
02H
VG4CMD
1 byte
FDH
CHATRIPA4
2 bytes
28H 2AH
Coordinate X1
2 to 5 bytes
See above figure.
,
1 byte
2CH (Delimiter)
Coordinate Y1
2 to 5 bytes
See above figure.
,
1 byte
2CH (Delimiter)
Coordinate X2
2 to 5 bytes
See above figure.
,
1 byte
2CH (Delimiter)
Coordinate Y2
2 to 5 bytes
See above figure.
,
1 byte
2CH (Delimiter)
Coordinate X3
2 to 5 bytes
See above figure.
,
1 byte
2CH (Delimiter)
Coordinate Y3
2 to 5 bytes
See above figure.
ETX
1 byte
03H
Fig. 3-11-2