Also I think graphviz is a great tool when you want to generate some diagrams quickly and don't care too much about the design. If you have a precise idea of ho

Also I think graphviz is a great tool when you want to generate some diagrams quickly and don't care too much about the design. If you have a precise idea of how it should look, it is possible to force it to look that way but it becomes a lot of work (with a complex logic of clusters, ranks, groups, etc).