Issue:Subgraph dimensions exceed graph size

Description:
Extension / Version:	aiSee   /   2.2
Type / Status:	Bug   /   open

Problem

In the following graph the subgraphs´ size exceed the graph size, i.e. calculation of overall graph size does not work correctly.

 
graph: {
// generated by Wgraph at 18:16, 18 October 2007
// see http://semeb.com/dpldemo/index.php/Wgraph
title: "X"
displayedgelabels: yes
graph: {
 title: "a"
 state: clustered
 label: "a"
 graph: {
  title: "b"
  state: clustered
  label: "b"
  graph: {
   title: "c"
   state: clustered
   label: "c"
  }
 }
}
}