Brother HL-Series Technical Reference Manual page 282

Revision C 16/01/96
RO - Rotate coordinate system
RO [ q ][;]
q : Angle in degrees through which the coordinate system is rotated.
• This instruction is used to rotate the graphics coordinate system anti-clockwise.
• Using this instruction with no parameter sets the rotation of the coordinate system to 0 degrees (default
value).
• The pen position does not change.
• P1 and P2 rotate with the coordinate system and retain the same coordinate values.
• To relocate P1 and P2 at the lower left and upper right hand corners of the picture frame, use the IP; or IR;
command.
• If you have previously used an IW command, the window is also rotated. Any part of the window that falls
outside the hard clip limits will be clipped.
• The command remains in effect until another RO command is used, or until the printer is initialized with
the IN instruction.
• Valid values of q are 0, 90, 180 or 270.
10 '--Rotate Coordinate System--
20 WIDTH "LPT1:",255
30 LPRINT CHR$(27);"E";
40 LPRINT CHR$(27);"%0B";
50 LPRINT "IN;SP1;";
60 FOR I = 0 TO 270 STEP 90
70 LPRINT "RO"; I; "PA1000,2000;PD3000,2000,2000,3000,1000,2000;PU;"
80 LPRINT "LB RO ="; I; CHR$(3)
90 LPRINT "PA600,1500;LBRotate Coordinate System";CHR$(3)
100 NEXT I
110 LPRINT CHR$(27);"%0A";
120 LPRINT CHR$(27);"E";
130 END
<Sample 23>
Chapter 8 "HP-GL2" 16