%%
%%  A DANTE-Edition example
%%
%%  Example 29-02-10 on page 569.
%%
%%  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{177.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-eucl}

\begin{document}
\begin{pspicture}(-2.5,-2.5)(2.5,2.5)
 \pstGeonode{O}(2,0){A}  \pstCircleOA{O}{A}
 \pstCurvAbsNode{O}{A}{M_1}{\pstDistVal{5.5}}
 \pstArcOAB[linecolor=red,linewidth=1.5pt,
   arrows=->]{O}{A}{M_1}
 \pstCurvAbsNode[CurvAbsNeg=true]{O}{A}{M_2}{%
   \pstDistAB{A}{M_1}}
 \psset{linecolor=blue,linestyle=dashed,
   linewidth=1.5pt,arrows=->}
 \pstArcnOAB{O}{A}{M_2}  \pstLineAB{A}{M_1}
\end{pspicture}
\end{document}