= GraphViz =
Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics,  software engineering, database and web design, machine learning, and in visual interfaces for other technical domains. 

http://www.graphviz.org/

== GraphViz for MoinMoin ==
http://moinmo.in/GraphVizForMoin

 * cd /tmp
 * wget http://moinmo.in/GraphVizForMoin?action=AttachFile&do=view&target=MoinGraphViz-1.0rc4-brn-1.9.x.comp.zip
 * unzip MoinGraphViz-1.0rc4-brn-1.9.x.comp.zip 
 * cd/tmp/MoinGraphViz-1.0rc4-brn-1.9.x.comp/wiki/data/plugin
 * cp * -r /home/moin/moin-1.9.7/wiki/data/plugin/ 
 * cd /home/moin/moin-1.9.7/wiki/data/plugin/ 
 * chown moin * -R
 * chgrp apache * -R
 * cd/tmp/MoinGraphViz-1.0rc4-brn-1.9.x.comp/umoin
 * cp MoinLegacy /home/moin/moin-1.9.7/MoinMoin/support/
 * cd /home/moin/moin-1.9.7/MoinMoin/support/
 * chown moin * -R
 * chgrp apache * -R
 * yum install graphviz
 * vim /home/moin/moin-1.9.7/wiki/data/plugin/parser/MoinGraphViz/main-py # GRAPHVIZ_TOOLS_DIR = r'/usr/bin'
 * service httpd restart

=== Test after installation ===
{{{#!GraphViz dot
digraph SomeGraph {
  A -> { B C }
  B -> C
}
}}}


== Sample 1 ==
{{{
digraph G {
 main -> parse -> execute;
 main -> init;
 main -> cleanup;
 execute -> make_string;
 execute -> printf
 init -> make_string;
 main -> printf;
 execute -> compare;
}
}}}

== UML with GraphViz ==
http://www.ffnn.nl/pages/articles/media/uml-diagrams-using-graphviz-dot.php