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
<Sample 40>
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