LA - Line attribute ; LA [ - Page 188

CHAPTER 4 HP-GL/2 - 32 

LA - Line attribute 

LA [ 

l

, 

v

 [ , 

l

 , 

v

 [ , 

l

 , 

v

]]] [;] 

l

 ; line attribute 

v

 : value 



This command specifies the shape of line joins and line ends. 



These settings are effective for the line widths thicker than 0.35 mm. 



l specifies the line attribute for which you are setting a value. 



There are three line attributes - line end type,    line join type and miter limit,    specified by line attribute 
values of 1, 2 and 3 respectively. 



v specifies the value of the particular attribute. 



Line ends are either butt (1), square (2,), triangular (3) or round (4). 



Line joins are either mitered (1), mitered/beveled (2), triangular (3), round (4), beveled (5), or have no join 
(6). 



Miter limit is the ratio of miter length to line width.    When the miter limit is exceeded,    the join is clipped 
to the miter limit. 



The miter limit is specified as a clamped real number. 



If no parameters are specified, the line attributes are set as follows:    line ends are butt,    line joins are 
mitered and the miter limit is 5.    This is equivalent to the command LA1, 1, 2, 1, 3, 5; 

Miter length

Line width

Miter limit = Miter length / Line width



Labels are always drawn with rounded ends and joins.     



An LA command remains in effect until another LA command is issued,    until default settings are restored 
with the DF command    or until the printer is initialized with an IN command. 

10 '-Line Attributes- 
20 WIDTH "LPT1:", 255 
30 LPRINT CHR$(27); "E"; 
40 LPRINT CHR$(27); "%0B"; 
50 LPRINT "IN;SP1;"; 
60 LPRINT "PA4000,3000;PW2;LA1,3;PD3500,2500,4000,2000;" 
70 LPRINT "PU3500,200;LA2,2,3,20;PD3000,2500,3000,2300;" 
80 LPRINT "PU2500,2300;LA1,4;PD3500,2300;" 
90 LPRINT "PU2700,2100;PD3300,2100;" 
100 LPRINT "PU2900,1900;PD3100,1900;" 
110 LPRINT CHR$(27); "%0A"; 
120 LPRINT CHR$(27); "E"; 
130 END 
 
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