%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
%% 
%%  Beispiel 35-00-91 auf Seite 855.
%% 
%%  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
%% 
%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{filecontents}
\begin{filecontents*}{node2.data}
12  12
12  13
13  15
15  15
15  13
13  12
12  10
10  8
8   8
8   10
10  12
12  12
12  10
10  10
\end{filecontents*}
\usepackage{pst-node,pst-plot}
\def\CPut(#1)#2{\pscircle*[linecolor=white](#1){3mm}\rput(#1){#2}\pscircle(#1){3mm}}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}(6.5,6.5)(16,16)
  \psaxes[axesstyle=frame,ticksize=0 9cm,tickcolor=black!20,Ox=7,Oy=7](7,7)(16,16)
  \saveDataAsNodes{node2.data}{N}
  \psset{radius=2.5mm,arrows=->,arrowscale=1.5,nodesep=3mm,linewidth=1.3pt}
  \multido{\iA=\the\psLoopIndex+-1,\iB=\numexpr\the\psLoopIndex-1\relax+-1}%
     {\the\psLoopIndex}{\CPut(N\iA){\iA}\ncline{N\iB}{N\iA}\ncput*[npos=0.4]{\tiny\iB/\iA}}
  \pscircle*[linecolor=red](N0){3mm}\rput(N0){\bf\white0}
  \readdata\data{node2.data}
  \pslistplot[linecolor=blue,linestyle=dashed,plotstyle=LSM,xStart=7,xEnd=16]{\data}
\end{pspicture}
\end{document}