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%%
%% The LaTeX Graphics Companion, 2ed (first printing May 2007)
%%
%% Example 7-2-9 on page 474.
%%
%% Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%
\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.83385pt}
\StartShownPreambleCommands
\usepackage[frame]{xy}
\StopShownPreambleCommands
\begin{document}
\[
\newcommand{\smbf}{\small\bfseries} \newcommand{\smit}{\small\itshape}
\begin{xy}
0*=(22,14)!UR!(-10,-8)[F]\txt\smbf{center\\of box}="box";
"box"+L*+!R\txt\small{Left\\side}
,"box"+R*+!L\txt\small{Right\\side}
,"box"+D*+!U\txt\small{Bottom side}
,"box"+U*+!D\txt\small{Top side}
,"box"+LD*@{*}*+!RU\txt<2cm>\smit{Lower left diagonal}
,"box"+RD*@{*}*+!LU\txt<2cm>\smit{Lower right diagonal}
,"box"+LU*@{*}*+!RD\txt<2cm>\smit{Upper left diagonal}
,"box"+RU*@{*}*+!LD\txt<2cm>\smit{Upper right diagonal}
\end{xy}
\]
\end{document}
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