ASTRO VG-871 - GTRIPA [D2 H]: Filled-In Triangle Drawing; CTRIPA [D3 H]: Filled-In Triangle Clearing

Chapter 5 INDIVIDUAL DRAWING COMMAND FORMATS
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5.14 GTRIPA [D2H]: Filled-in triangle drawing /
CTRIPA [D3H]: Filled-in triangle clearing
5.14.1 GTRIPA [D2H]: Filled-in triangle drawing
Function: This command draws a filled-in triangle on the graphic plane (1-bit plane).
The coordinates of the three apex points are set by the parameters.
Sequence: Type 2
Command:
STX
1 byte
02H
GTRIPA, CTRIPA
1 byte
D2H, D3H
Coordinate X1
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
Coordinate Y1
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
Coordinate X2
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
Coordinate Y2
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
Coordinate X3
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
Data delimiter
1 byte
“, “
Coordinate Y3
2 to 5 bytes
Sign code + “0” to “4095” e.g. 100 “0100”
Sign code: “0” = +, “1” = -
*-2048 (“12048”) to +4096 (“04095”) in numerical
terms
ETX
1 byte
03H
Fig. 5-14-1