%%
%%  Ein Beispiel der DANTE-Edition
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%%  7. Auflage
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%%  Beispiel 15-02-15 auf Seite 260.
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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{145.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-node}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}(3.5,3)
 \rput[tl](0,3){\rnode{A}{\psframebox{Kn. A}}}
 \rput[br](3.5,0){\ovalnode{B}{Kn. B}}
 \ncangles[angleA=-90,arm=.4cm,linearc=.15]{->}{A}{B}
 \ncput*{d}
 \nbput[nrot=:D,npos=2.5]{par}
\end{pspicture}
\end{document}