I definitively need some help here!

I’m trying to implement this graph made using this DOT file with the RGL (Ruby Graph Library).

Later on, the graph should receive it’s data out of a database, but right now I’m already struggling on getting the graph drawn by RGL in a static way. I’m not able to decorate the nodes and edges in RBL in this way.

Has anyone already done this? Is there a better way to get graphs painted in ruby?

Update
I gave it up and implemented the graph by myself. I have a node- and a edge-object. They have their DOT-decoration inside a string-variable. As soon as I want the graph painted I just loop over every node/edge and write out the DOT-code to a file. Then I call the DOT-command on my shell and have it paint me PNG out of the file I made. It’s a dirty hack, but it works. :-)