DT - Define label terminator ; LO - Label origin ; DT [ - Page 193

2001/10/02 

CHAPTER 4 HP-GL/2 - 45 

DT - Define label terminator 

DT [ 

c

 [, 

m

 ]] [;] 

c

 : Character 

m

 : mode 

• 

This command allows you to specify the character that terminates strings printed with the LB instruction. 

• 

The character immediately following DT is taken to be the terminator.  Hence,  do not put a space between 
the DT and your chosen character.  If you do,  space will be interpreted as the terminator in all subsequent 
LB commands. 

• 

m

, the mode,  determines whether the terminating character is printed as part of the label or not.  If m = 0 the 

character is printed ; if m = 1 it is not. 

• 

If you do not specify a value for m the terminating character is not printed. 

• 

If you leave out the character parameter the default character ETX (ASCII 3 ) is used as the terminator. 

• 

This setting is effective until the another DT is invoked or IN or DF is performed. 

10 REM - Define Label Terminator - 

20 WIDTH "LPT:", 255 

30 LPRINT CHR$(27); "E"; 

40 LPRINT CHR$(27); "%0B"; 

50 LPRINT "IN;SP2;"; 

60 LPRINT "IN;SP2;SC0,5000,0,5000;" 

70 LPRINT "PA0,4500;LBDefault control character ETX"; CHR$(13);CHR$(3); 

80 LPRINT "LBterminates by performing end-"; CHR$(13);CHR$(3); 

90 LPRINT "LBof-text function.";CHR$(3); 

100 LPRINT "PA0,3500;DT@;LBPrinting characters terminate,"; CHR$(13); 

"@"; 

110 LPRINT "LBbut are also printed.@"; 

120 LPRINT "PA0,3000;DT"; CHR$(7); "LBcontrol characters terminate"; 

CHR$(13);chr(7); 

130 LPRINT "LBand perform their function."; CHR$(7) 

140 LPRINT CHR$(27); "%01"; 

150 LPRINT CHR$(27); "E";  

160 END 

<Sample 52> 

LO - Label origin 

LO [ 

p

 ]  [;] 

• 

This instruction allows you to position labels in different ways relative to the current pen location. 

• 

You can centre,  left justify or right justify labels relative to the current pen location and print them on,  
above or below the current location. 

• 

You can combine an offset distance,  equal to 25% of the current font's point size,  with any of the above 
origin positions. 

• 

p

 must either be in the range 1 - 9, 11 - 10 and 21.  The label origin position specified by each 

p

 parameter 

value is shown below.  21 sets the label origin to the same one in PCL. 

P=1          P=4          P=7
P=2          P=5          P=8
P=3          P=6          P=9

P=11        P=14        P=17
P=12        P=15        P=18
P=13        P=16        P=19