CHAPTER 9 HP-GL - 20 
XT - X-axis tick 
XT [;] 
  Plots vertical tick marks as specified by the TL instruction from the current position. 
  After plotting, the cursor returns to its point of origin. 
  Plotting is performed whether the pen is up or down. 
 
YT - Y-axis tick 
YT [;] 
  Plots horizontal tick marks as specified by the TL instruction from the current position. 
  After plotting, the cursor returns to its point of origin. 
  Plotting is performed whether the pen is up or down. 
 
10 '*** XTYTEX *** 
20 LPRINT "IN;PA300,279;SP2;PD"; 
30 LPRINT "PR1300,0;XT;PR1300,0;XT;PU;" 
40 END 
 
PT - Pen thickness select 
PT [d] [;] 
d : Fill line interval (mm) 
  Sets the line interval when filling in with solid lines. 
  The value for d is a clamped number from 0.0000 to 5.0000. 
  The default value (0.3 mm) is used when d is omitted. 
 
3.6.  Character Plot Instructions 
Instruction Function 
CS  Standard Set Definition 
CA  Alternate Set Definition 
SS  Select Standard Font 
SA  Select Alternate Font 
DT  Define Label Terminator 
LB Define Label 
DI Absolute Direction 
DR Relative Direction 
CP Character Plot 
SI  Set Absolute Character Size 
SR  Set Relative Character Size 
SL  Set Character Slant 
UC User-defined Character 
 
CS - Standard character set 
CS n[;] 
n ; Character set number(*) 
  Specifies the standard character set. 
  When the parameter field is omitted,  character set 0 is specified. 
  The value for n is a clamped integer number in the range of 0 to 4, 6 to 7, 9 or 30 to 39. 
 
CA - Alternate character set 
CA n[;] 
n ; Character set number (*) 
  Specifies the alternate character set. 
  When the parameter field is omitted, character set 0 is specified. 
  The value for n is a clamped integer number in the range of 0 to 4, 6 to 7, 9 or 30 to 39.