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<h2>12. Style Variables
<a name="12. Style Variables"></a>
</h2>


<p style="margin-top: 1em"><font color="#000000">There are
a number of global style variables in <b>pic</b> that can be
used to change its overall behavior. We&rsquo;ve mentioned
several of them in previous sections. They&rsquo;re all
described here. For each variable, the default is
given.</font></p>


<p align="center"><font color="#000000"><img src="img/pic42.png" alt="Image img/pic42.png"></font></p>

<p><font color="#000000">Any of these variables can be set
with a simple assignment statement. For example:</font></p>


<p align="center" style="margin-top: 1em"><font color="#000000"><img src="img/pic43.png" alt="Image img/pic43.png"></font></p>


<p align="center" style="margin-top: 1em"><font color="#000000">Figure
12-1: <b>boxht=1; boxwid=0.3; movewid=0.2; box; move; box;
move; box; move; box;</b></font></p>

<p style="margin-top: 1em"><font color="#000000">In GNU
<b>pic</b>, setting the <b>scale</b> variable re-scales all
size-related state variables so that their values remain
equivalent in the new units.</font></p>

<p style="margin-top: 1em"><font color="#000000">The
command <b>reset</b> resets all style variables to their
defaults. You can give it a list of variable names as
arguments (optionally separated by commas), in which case it
resets only those.</font></p>

<p style="margin-top: 1em"><font color="#000000">State
variables retain their values across pictures until
reset.</font></p>
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