%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
%% 
%%  Beispiel 15-03-2 auf Seite 263.
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%%  Copyright (C) 2016 Herbert Voss
%% 
%%  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.
%% 
%% 
%% ==== 
% Show page(s) 1
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%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{97.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-node}  \psset{nodesep=5pt}
%StopShownPreambleCommands
\begin{document}
\rnode[lb]{A}{%
  \rnode[rb]{B}{%
    \rnode[rt]{C}{%
      \rnode[lt]{D}{\Huge g}}}}
\ncline{A}{B}\ncline{B}{C}\ncline{C}{D}\ncline{D}{A}
\end{document}