Graph Visualization Software from AT&T Laboratories and
Bell Laboratories (Lucent Technologies)

These programs licensed under the terms described in the web page at:
http://www.graphviz.org/License.php

The package contains:
    dotty  - customizable X windows graph viewer written in the Lefty editor
    tcldot - customizable TCL/tk graph viewer written by John Ellson
    dot    - batch program for drawing directed graphs as hierarchies
    neato  - batch program for drawing undirected graphs using Kamada-Kawai
             spring models

WWW: http://www.graphviz.org/