RA - Fill rectangle absolute ; RA X, Y[;] - Page 183

CHAPTER 4 HP-GL/2 - 27 



r

 specifies the radius of the circle.    A positive value for 

r

 places the 0º reference point onto the positive x-

axis and a negative value for 

r

 places the 0º reference point onto the negative x-axis. 



The value for 

q1

 is a clamped real number. 

q1

qc

r

0° reference point

current

position



q1

 specifies the wedge starting point relative to the 0 degree reference point. 



When 

q1

 is positive, the positive direction of the X axis relative to the current position is set at 0 degrees and 

the start point is sought in the counterclockwise direction.    The opposite occurs when 

q1

 is negative: the 

negative X axis is set at 0 degrees and the start point is sought by going clockwise. 



qc

 specifies the angle of the wedge in degrees. 



The value for 

qc

 is a clamped real number. 



Plotting proceeds counterclockwise when 

qc

 is positive and clockwise when negative. 



The value for 

qd

 must be an integer from -32,768 to +32,767. 



When 

qd

 is not specified, the chord angle is the default value ( 5 degrees ) 

10 '- Edge Wedge - 
20 WIDTH "LPT1:", 255 
30 LPRINT CHR$(27); "E"; 
40 LPRINT CHR$(27); "%0B"; 
50 LPRINT "IN;SP1;" 
60 LPRINT "PA2000,5000;" 
70 LPRINT "EW1250,90,180,5;" 
80 LPRINT "EW1250,270,120;" 
90 LPRINT "EW1250,30,60;" 
100 LPRINT CHR$(27); "%0A"; 
110 LPRINT CHR$(27); "E"; 
120 END 
 
<Sample 33> 

RA - Fill rectangle absolute 

RA X, Y[;] 

X ; X coordinate of opposite corner for the rectangle 
Y ; Y coordinate of opposite corner for the rectangle 



X and Y coordinates are absolute coordinates in current units. 



Fill the rectangle formed by the current position and the opposite corner specified by X and Y. 



After plotting, the cursor returns to its point of origin. 



Plotting is performed whether the pen is up or down. 

10 ' - Fill Absolute Rectangle - 
20 WIDTH "LPT1:", 255 
30 LPRINT CHR$(27); "E"; 
40 LPRINT CHR$(27); "%0B"; 
50 LPRINT "IN;SP1;PA5000,4000;" 
60 LPRINT "FT1;RA4250,3250;" 
70 LPRINT "FT3,100;RA5750,3250;" 
80 LPRINT "FT2;RA5750,4750;"