Re-layout from script

[Gsettanni]

Hi there,
I would like to access to my gephi graph through a jython script, and periodically re-layout the graph.
I tried using the script console plugin, and it works fine! But I have to launch the script from the GUI every time I want to re-layout the graph, it is not possible to update the graph layout automatically as soon as the graph changes (nodes or edges are added/deleted)

Moreover, I would like to integrate these re-layouting commands in another python script that I'm already using to update the nodes and the edges of the graph (I'm using the streaming plugin to achieve that).

Is it possible to include, in the python script I'm using for create and update the graph via stream, the commands that I would need to manage the graph layout, so that I can see (in real time) the graph updating and re-layouting automatically?

If it's possible, does anybody have ideas about how to do that?

Thanks in advance.
Cheers,
Giuseppe.

[eduramiba]

Hi Giuseppe,
What layout are you using?
Most layouts never stop so they will re-layout when the graph changes.

But if it is a layout that stops and you want to automatically do the layout when the graph changes you could register a graph listener.
In the scripting plugin that would be done with some code like the following:

Code: Select all

import org.gephi.graph.api as graph_api
graphModel = gephi.getLookup().lookup(graph_api.GraphController).getModel()

class MyListener(graph_api.GraphListener):
    def graphChanged(self,event):
        #Do layout here...
		
listener = MyListener()
graphModel.addGraphListener(listener)

But I tried and it does not work, events don't reach the listener. Does anyone have an idea? I may be making some mistake.

Eduardo