Chapter 4 INDIVIDUAL FORMATS FOR CONTROL COMMANDS
305
3.9
CHAELPSPA4 [28H 28H]: Character plane filled-in
ellipse drawing
Function:
This command draws a filled-in ellipse on the character plane.
Sequence: Type 2
Command:
STX
1 byte
02H
VG4CMD
1 byte
FDH
CHAELPSPA4
2 bytes
28H 28H
Center X coordinate
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)
Center Y coordinate
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)
Radius RX
1 to 4 bytes
“1” to “4095”
,
1 byte
2CH (Delimiter)
Radius RY
1 to 4 bytes
“1” to “4095”
,
1 byte
2CH (Delimiter)
Drawing mode
1 byte
“0” = Clear, “1” = Set
ETX
1 byte
03H
Fig. 3-9-1
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
CHAELPSPA4
2 bytes
28H 28H
Center X coordinate
2 to 5 bytes See above figure.
,
1 byte
2CH (Delimiter)
Center Y coordinate
2 to 5 bytes See above figure.
,
1 byte
2CH (Delimiter)
Radius RX
1 to 4 bytes
“1” to “4095”
,
1 byte
2CH (Delimiter)
Radius RY
1 to 4 bytes
“1” to “4095”
ETX
1 byte
03H
Fig. 3-9-2
Summary of Contents for VG-870
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