I was aware of ruby-graphviz and some of the others. The main two
reasons I did not use any are:
-
I did not any external library so as not to ‘pollute’ the namespace.
Since any classes require’d are presented I wanted to keep to the
basics. That’s also the reason why the script does manual parameters
processing. -
They require a separate install (which will be fine once everything
gemmed up :). I wanted to keep this simple.
I will give the others a look, as lately I seem to be involved with
graphviz… 
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-----Original Message-----
Just in case you didn’t know. There are some other ruby libs working
with graphviz, too:
- ruby-graphviz
- graphr
- rgl