[pstricks] Genealogical trees

[Herbert Voss]

Jean-Philippe GÉRARD wrote:
> Building a family tree, I would like to shift horizontally the connector
> between two generations (levels).
> 
> The vertical connector between these two generations is always put at
> the middle of the horizontal connector linking two characters (nodes) of
> the same generation (level).

the easiest way is using psmatrix.

Herbert

\documentclass[a4paper,12pt]{article}

\usepackage{pstricks,pst-tree,pst-node}

\begin{document}

\psset{edge={\ncangles[angleA=-90,angleB=90,nodesep=3pt]}}
\pstree{\Tr{Node 1}}{%
   \Tn\Tn\Tr{Node 2}\Tn\Tn
   \Tr{Node 3}
}

\vspace{1cm}
\begin{psmatrix}[colsep=0.5cm]
            & [name=N1]Node 1               \\[0pt]
[name=N2]Node 2  & &\rule{3cm}{0pt} & [name=N3]Node 3
\end{psmatrix}
\ncangles[angleA=-90,angleB=90,nodesep=3pt]{N1}{N2}
\ncangles[angleA=-90,angleB=90,nodesep=3pt]{N1}{N3}

\end{document}