[pstricks] [Fwd: Re: laying out a hierarchical structure diagram]

[Herbert Voss]

-------- Original Message --------
Subject: Re: laying out a hierarchical structure diagram
Date: Thu, 29 Jun 2006 15:10:07 +0200
From: Herbert Voss <Herbert.Voss at gmx.net>
CC: LaTeX Lists <pstricks at tug.org>
Newsgroups: comp.text.tex
References: <r%Cog.57319$Lm5.37655 at newssvr12.news.prodigy.com>

anon k wrote:
> I'm trying to lay out a hierarchical structure diagram that shows how 
> subsets relate to their supersets.
> 
> One way is to draw it as a tree, graph theory-style, with the words at 
> each node.  It won't always be a tree, though, because the structures 
> that I am depicting are not always very rigorous.  (For example see below.)
> 
> An ASCII indication of what I'm trying to achieve:
> 
>         /-- Grasses
>         |              /-- Pines -----------------\
>         |              |                          +-- needle-leaved
>         |              |-- Oaks --\               |
>         |              |          +-- flat-leaved |
> Plants -+-- Trees  ----+-- Elms --/               |
>         |              |                          |
>         |              \-- Spruces ---------------/
>         \-- Herbs

\documentclass{minimal}
\usepackage{pstricks,pst-tree}
\begin{document}

\psset{edge={\ncangles[arrows=->,angleB=180]},nodesep=3pt,levelsep=3cm}
\pstree[treemode=R]{\Tr{Plants}}{%
   \Tr{Grasses}
   \pstree[treemode=R]{\Tr{Trees}}{%

\pstree[treemode=R]{\Tr{Pines}}{\skiplevel{\Tr[name=needle]{needle-leaved}}}
     \pstree[treemode=R]{\Tr{Oaks}}{\Tr[name=flat]{flat-leaved}}
     \Tr[name=elms]{Elms}
     \Tr[name=spruces]{Spruces}
   }
   \Tr{Herbs}
}
\ncangles[angleB=180]{elms}{flat}
\ncangle[angleB=180,armB=0.5]{spruces}{needle}

\end{document}

Herbert