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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<TITLE>How iTe works</TITLE>
<LINK REL="STYLESHEET" HREF="manual.css">
</HEAD>
<BODY >
<B> Next:</B> <A HREF="invocation.html">Invocation</A>
<B> Up:</B> <A HREF="manual.html">iTe</A>
<B> Previous:</B> <A HREF="installation.html">Installation</A>
<H1>How <span class=ite>iTe</span> works</H1>
<P>
The following L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X2<SUB>e</SUB> code is a minimal working example.
<P>
<PRE>
\documentclass{article}
\usepackage{ite}
\begin{document}
\begin{iteblock}(5cm,5cm)
\ite Hello
\ite World
\end{iteblock}
\end{document}
</PRE>
<P>
It defines two <EM>active</EM> <span class=ite>iTe</span> objects (`Hello' and `World').
Upon starting <span class=ite>iTe</span>, active objects can be manipulated interactively.
The possible operations are translation, rotation and scaling. The
origin for these operations is the lower left corner of the box
defined by the <TT>iteblock</TT> environment. For an active object, <span class=ite>iTe</span>
establishes a one-to-one relationship between its L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X source code
and the corresponding PostScript code fragment. All operations are
then simultaniously recorded in both the L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X source and in the GhostScript window. For example, if the `Hello' is translated,
rotated by 90 degrees and scaled by a factor of 2, then the
corresponding L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X source will look like this:
<P>
<PRE>
\ITE(50 70 90 2) Hello
</PRE>
<P>
Sometimes, you might be pressed to define <span class=ite>iTe</span> objects inside macros
or saved boxes. If this is the case, many PostScript code fragments
may correspond to one L<SUP><SMALL>A</SMALL></SUP>T<SMALL>E</SMALL>X source object. Here you have to use
<EM>passive</EM> objects. The use of active objects inside macros and
saved boxes is <B>not</B> checked and will utterly confuse <span class=ite>iTe</span>.
Passive objecst behave like active objects, but cannot be manipulated
interactively. See the definition of the <TT>itebind</TT> <A
HREF="latex.html">latex environment</a> on how to generate passive objects.
<contact-stamp><hr><FONT SIZE=-1>
Last modified by <A HREF="http://www.decatur.de/wolfgang">Wolfgang Kühn</a> on
Saturday, 10 June 2000
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