%%
%% A DANTE-Edition example
%%
%% Example 17-03-3 on page 281.
%%
%% 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{225.70511pt}
\setlength\parindent{0pt}
\usepackage{pst-tree}
\begin{document}
\psset{tpos=.6}% 60% of the start
\psframebox[fillstyle=solid,
fillcolor=black!15]{%
\pstree[treemode=R,thistreesep=0.7cm,
shortput=nab,nrot=:U,
thislevelsep=3cm,
radius=2pt]{\Tc{3pt}~{A}}{%
\pstree[treemode=U,xbbr=20pt]{%
\Tc{3pt}~{B}^{top}}{%
\TC~*{B1}^{left}
\TC*~*{B2}_{right}}
\TC~*{C}\ncput*{centre}
\pstree[treemode=D,xbbr=20pt]{%
\Tc{3pt}~{D}_{bottom}}{%
\TC~*{D1}_{left}
\TC*~{D2}^*{right}}
}}
\end{document}
