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<TITLE>TeXdraw - 4. Using TeXdraw with LaTeX</TITLE>
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<H1><A NAME="SEC20" HREF="texdraw_toc.html#TOC20">4. Using TeXdraw with LaTeX</A></H1>
<P>
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<P>
The LaTeX typesetting system uses a structured approach to declaring
typesetting environments. For LaTeX2e, the <CODE>texdraw</CODE> package
defines the <CODE>texdraw</CODE> environment. The TeXdraw environment is
started with a <CODE>\begin{texdraw}</CODE> command and terminated with an
<CODE>\end{texdraw}</CODE> command. All of the basic TeXdraw commands
can be used within the <CODE>texdraw</CODE> environment.
<P>
As an example, a LaTeX2e variant of an earlier example can be
constructed as follows.
<PRE>
\documentclass{article}
\usepackage{texdraw}
...
\begin{document}
...
\newcommand{\tbox}[1]{%
\bsegment
\lvec (0 +0.25) \lvec (0.75 +0.25)
\lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
\textref h:C v:C \htext (0.375 0){#1}
\savepos (0.75 0)(*ex *ey)
\esegment
\move (*ex *ey)}
\begin{center}
\begin{texdraw}
\ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
\end{texdraw}
\end{center}
...
\end{document}
</PRE>
<P>
This example illustrates the use of the LaTeX command
<CODE>\newcommand</CODE> as an alternative to the plain TeX command
<CODE>\def</CODE>. Instead of the basic TeXdraw command
<CODE>\centertexdraw</CODE>, a nested combination of the LaTeX centering
environment and the TeXdraw environment is used.
<UL>
<LI><A HREF="texdraw_4.html#SEC21">PostScript printer drivers</A>
</UL>
<H2><A NAME="SEC21" HREF="texdraw_toc.html#TOC21">4.1 PostScript printer drivers</A></H2>
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The <CODE>texdraw</CODE> package uses the printer driver interface provided by
the standard LaTeX2e <CODE>graphics</CODE> package. Any options to the
<CODE>texdraw</CODE> package are passed to the <CODE>graphics</CODE> package.
Specifically, the name of the PostScript driver to be used can be
specified as an option to the <CODE>texdraw</CODE> package. With no explicit
printer driver option, the default printer driver associated with the
<CODE>graphics</CODE> package is used.
<P>
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The <CODE>texdraw</CODE> package can be used with any of the printer drivers
supported by the <CODE>graphics</CODE> package that allow for the importation
of PostScript graphics files, viz., <CODE>dvips</CODE>, <CODE>xdvi</CODE>,
<CODE>dvi2ps</CODE>, <CODE>dvialw</CODE>, <CODE>dvilaser</CODE>, <CODE>dvipsone</CODE>,
<CODE>dviwindo</CODE>, <CODE>dvitops</CODE>, <CODE>oztex</CODE>, <CODE>psprint</CODE>,
<CODE>textures</CODE>, <CODE>pctexps</CODE>, and <CODE>pctexwin</CODE>. Not all of these
drivers support the text rotation needed for the TeXdraw commands
<CODE>\vtext</CODE> and <CODE>\rtext</CODE>. Of the drivers listed above, only the
following support support text rotation: <CODE>dvips</CODE>, <CODE>xdvi</CODE>,
<CODE>dvi2ps</CODE>, <CODE>dvitops</CODE>, <CODE>textures</CODE>, and <CODE>pctexps</CODE>.
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