%%
%%  A DANTE-Edition example
%%
%%
%%  Copyright (C) 2011 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[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-eucl}

\begin{document}
\begin{pspicture}(-1,-2.5)(2.5,1)
 \psset{unit=.00625}  \pstGeonode{A}
 \multido{\n=20+20}{18}{%
   \pstGeonode[PointName=M_{\n}](\n;\n){M_\n}}
 \pstGenericCurve[GenCurvFirst=A,GenCurvInc=20,
   linecolor=blue]{M_}{20}{360}
\end{pspicture}
\end{document}