GraphViz - How to connect subgraphs?
In the DOT language for GraphViz , I'm trying to represent a dependency diagram. I need to be able to have nodes inside a container and to be able to make nodes and/or containers dependent on other nodes and/or containers. I'm using subgraph to represent my containers. Node linking works just fine, but I can't figure out how to connect subgraphs. Given the program below, I need to be able to connect cluster_1 and cluster_2 with an arrow, but anything I've tried creates new nodes instead of connecting the clusters: digraph G { graph [fontsize=10 fontname="Verdana"]; node [shape=record fontsize