%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 6-3-6 on page 369.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  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.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{159.83385pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-tree}
\StopShownPreambleCommands
\begin{document}
\pstree[treesep=0.2cm,linewidth=0.2pt,%
        radius=3pt]{\TC}
  {%
   \Tfan*\uput[-90](0,0){left}
   \pstree[linestyle=dashed]{\Toval{centre}}
     {%
      \TC*\TC*\TC*\TC*\TC*\TC*\TC*\TC*\TC*\TC*
     }
   \Tfan[linestyle=dashed]%
      \uput[-90](0,0){right}
  }
\end{document}