%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
%% 
%%  Beispiel 04-01-25 auf Seite 56.
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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{169.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pstricks}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}[showgrid](4,3)
 \psline(0,0)(1.8,3)
 \psline[border=2pt]{*->}(0,3)(1.8,0)
 \psframe*[linecolor=gray!10](2,0)(4,3)
 \psset{linecolor=white}
 \psline[linewidth=1.5pt]{<->}(2.2,0)(3.8,3)
 \psellipse[linewidth=1.5pt,bordercolor=gray,
   border=2pt](3,1.5)(.7,1.4)
\end{pspicture}
\end{document}