%% 
%%  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{375.57637pt}
\setlength\parindent{0pt}

\usepackage{pst-eucl}

\begin{document}
\begin{pspicture}(0,-2)(5,2) \psset{linewidth=1.5pt}
  \pstGeonode[PosAngle={0,-90,0,90}](1,-1){O}(2,1){A}(2,0.1){B}(2.5,1){C}
  \pstInterCC[PosAngleA=135,CodeFigA=false,CodeFigAarc=false,
    CodeFigB=true,CodeFigBarc=true,CodeFigColor=blue]{O}{A}{C}{B}{D}{E}
\end{pspicture}
\begin{pspicture}(0,-2)(5,2) \psset{linewidth=1.5pt}
  \pstGeonode[PosAngle={0,-90,0,90}](1,-1){O}(2,1){A}(2,0.1){B}(2.5,1){C}
  \pstInterCC[PosAngleA=135,CodeFigA=true,CodeFigAarc=true,CodeFigStyle=dotted,
    CodeFigB=true,CodeFigBarc=true,CodeFigColor=red]{O}{A}{C}{B}{D}{E}
\end{pspicture}
\end{document}