%% The LaTeX Graphics Companion, 2ed (first printing May 2007)

%%
%% The LaTeX Graphics Companion, 2ed (first printing May 2007)
%%
%% Example 6-3-29 on page 379.
%%
%% 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{135.83385pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-tree}
\StopShownPreambleCommands
\begin{document}
\psset{tpos=.6}% 60% from the beginning
\pstree[treemode=R, thistreesep=1cm,shortput=nab,nrot=:U,
thislevelsep=3cm,radius=2pt]{\Tc{3pt}}{%
\pstree[treemode=U, xbbr=20pt]{\Tc{3pt}^{top}}{%
\TC*^{left}
\TC*_{right}}
\TC*\ncput*{centre}
\TC*_{bottom}}
\end{document}