%% 
%%  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{153.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-eucl}

\begin{document}
\begin{pspicture}(-1.5,-2)(1,1)
\psset{arrowscale=2,CodeFig=true}
\pstGeonode[PosAngle=-135](-1.5,-.2){A}(.5,0){B}(0,-2){D}
\pstRotation[PosAngle=-90, RotAngle=45]{A}{B}[C]
\pstRotation[AngleCoef=.5, RotAngle=\pstAngleAOB{B}{A}{C},
  CodeFigColor=red]{A}{D}[E]
\end{pspicture}
\end{document}