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CHAPTER 4 HP-GL/2 - 20

AA - Draw absolute arc

AA [ X, Y, qc [, qd ]] [;]

X ; Arc centre X coordinate Y ; Arc centre Y coordinate

qc ; Arc angle in degrees qd ; Chord angle in degrees

 Coordinates are absolute coordinates in current units.

 Starting from the current position, this command plots an arc centred on the absolute coordinates X, Y

having the specified arc angle and chord angle, with the radius being the distance between the current

position and the point X,Y.

 After execution of the command the cursor position is at the opposite end of the arc from the point at which

plotting started.

 Plotting takes place only when the pen is down.

 If the command is invoked with the pen up, plotting is not performed, but the cursor position moves to

what would have been the plot end point.

(X,Y)

qc = Arc Angle

qd = Chord Angle

 The value for qc is a clamped real number.

 When qc is positive, plotting is counterclockwise.

 When qc is negative, plotting is clockwise.

 The value for qd is a clamped real number in the range 0.5º to 180º. The default value is 5º.

10 '-- Draw Absolute Arc --

20 WIDTH "LPT1:",255

30 LPRINT CHR$(27);"E";

40 LPRINT CHR$(27);"%0B";

50 LPRINT "IN;SP1;IP1000,1000,6000,6000;"

60 LPRINT "SC0,100,0,100;"

70 LPRINT "PA0,30;"

80 LPRINT "PD;PA0,45;AA0,50,180;PA0,70;"

90 LPRINT "AA0,100,900;PA100,55;AA100,50,180;PA100,30;"

100 LPRINT "AA100,100,90;PA45,100;AA50,100,180;PA80,100;"

110 LPRINT "AA100,0,90;PA55,0;AA50,0,180;PA30,0;AA0,0,90;"

120 LPRINT "PU;PA50,50,CI20;"

130 LPRINT CHR$(27); "%0A";

140 LPRINT CHR$(27); "E";

150 END

Brother HL-1208 User Manual

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