%% 
%%  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{pstricks,pst-3dplot}

\begin{document}
\psset{xMin=-1,xMax=2,yMin=-1,yMax=2,zMin=-1,zMax=2}
\begin{pspicture}(-2,-2)(2,2)
  \pstThreeDCoor
  \pstThreeDDot[linecolor=red,%
    drawCoor=true](1,0.5,0.5)% center
  \psset{linecolor=blue, linewidth=1.5pt}
  \pstThreeDEllipse(1,0.5,0.5)(-0.5,1,0.5)(1,-0.5,-1)
  % settings for an arc
  \psset{beginAngle=0,endAngle=270,arrows=|-|}
  \pstThreeDEllipse(1,0.5,0.5)(-0.5,0.5,0.5)(0.5,0.5,-1)
\end{pspicture}
\end{document}