%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
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%%  Beispiel 07-01-20 auf Seite 103.
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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{121.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pstricks}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}[linewidth=1cm](4,4)
 \psline[linecolor=red](0,0)(4,4)
 \psline[linecolor=blue,strokeopacity=0.5](0,4)(4,0)
 \psline[linecolor=green,strokeopacity=0.5](0,3.5)(4,3.5)
 \psline[linecolor=yellow,strokeopacity=0.5](0,.5)(4,.5)
\end{pspicture}
\end{document}
