Re: [jgrapht-users] Auto-Layout and size?

[John V. S. <js...@gm...>]

Yes, JGraph has these capabilities (in the addons package), so if you 
use the JGraphModelAdapter to make JGraph and JGraphT work together, you 
can auto-layout your visualization.  Here's some example code (assuming 
you already have the model, view, and adapter tied together):

void layout(
     ListenableDirectedGraph graphModel,
     JGraphModelAdapter graphAdapter,
     JGraph graph)
{
     List roots = new ArrayList();
     Iterator vertexIter = graphModel.vertexSet().iterator();
     while (vertexIter.hasNext()) {
         Object vertex = vertexIter.next();
         if (graphModel.inDegreeOf(vertex) == 0) {
             roots.add(graphAdapter.getVertexCell(vertex));
         }
     }

     JGraphLayoutAlgorithm layout = new SugiyamaLayoutAlgorithm();
     layout.applyLayout(graph, layout, roots.toArray(), null);
}

JVS

Sven Abels wrote:
> Hi,
> 
> I would like to use JGraphT for a representation of our network and I would
> like to visualize the graph. However: I don't know in advance the number of
> vertex entries. Is it possible to use a "autosize" function to automatically
> set the size and the possition of the nodes in the graph visualization?
> 
> Best greetings,
> 
> Sven
> 
> 
> 
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