some updates, the gui is interactive now, you can zoom and move all node for a better view.
The original diagram is generated automatically from the INI/HAL file, and the layout is created using Graphviz.
Really nice and very useful debug tool. Thanks for sharing! I think this should be shipped with linuxcnc. What do you think?
Only a little note to the selection behaviour - when I click on several components after each other, and when I hold down on the last one and drag, all the previous clicked components are in the selection and are moved together. I think it would be more intuitive to do that with Ctrl click.
