visio like adge aggregation in graphviz

Question

Can graphviz do edge aggregation like visio ? meaning something like

      o
      |
-------------
|   |   |   |
o   o   o   o

and if not does any other java tool can ?

Our customers are used to this kind of layout and I cant find the way to do it using graphviz

Thanks, Guy

Answer 1

Graphviz uses the term "concentrate" to refer to that functionality. See this page of the Graphfiz Wiki for more info.