<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 6-3-23 on page 377.
%% 
%%  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{207.83385pt}
\StartShownPreambleCommands
\usepackage{pstricks,pst-tree}
\SpecialCoor
\def\edgeRed#1#2{\ncdiagg[angleA=180,arm=0pt,nodesep=2pt,linecolor=red]{#2}{#1}}
\def\edgeBlue#1#2{\ncdiagg[angleA=180,arm=0pt,nodesep=2pt,linecolor=blue]{#2}{#1}}
\StopShownPreambleCommands
\begin{document}
  \pstree[treemode=R,levelsep=*1cm]{%
     \Tr{Friedrich Wilhelm\rnode{A}{}}}{%
        \pstree{\Tr[edge=\edgeRed]{Friedrich I.}}{%
          \Tr[edge=\edgeRed]{Friedrich Wilhelm I.}
          \Tr[edge=\edgeRed]{Friedrich}}
        \pstree{\Tr[edge=\edgeBlue]{%
          \rnode{B1}{}Albrecht Friedrich\rnode{C}{}}}{%
          \Tr[edge=\edgeBlue]{\rnode{B2}{}Wilhelm Heinrich}
          \Tr[edge=\edgeBlue]{Friedrich}}}
  \psset{arrowscale=2,linewidth=0.2pt}
  \pcline[linestyle=dashed](A)(A|0,-1)  \pcline[linestyle=dashed](B1)(B1|0,-1)
  \pcline[linestyle=dashed](B2)(B2|0,-1)\pcline[linestyle=dashed](C)(C|0,-1)
  \psline{&lt;-&gt;}(A|0,-.8)(B1|0,-.8)       \psline{&lt;-&gt;}(B2|0,-.8)(C|0,-.8)
\end{document}
</pre></body></html>