Retrieving IlpGraphic or the IlvGraphic corresponding to an IltObject

You first have to retrieve the representation object (class IlpRepresentationObject) corresponding to your IltObject by using the methodIlpAbstractAdapter.getRepresentationObject(IltObject). 

Once the representation object is retrieved, you can get the IlpGraphic by using the method IlpNetworkView.getGraphic(IlpRepresentationObject). 
Then, you can call IlpNetworkView.getLayoutProxy(IlpGraphic). 
The following code extract shows you how to use these methods:

IlpNetwork network;
IltObject node; 
IlpNetworkView view = network.getView();
IlpNetworkAdapter adapter = network.getAdapter();
IlpRepresentationObject ro = adapter.getRepresentationObject(node);
IlpGraphic gr = view.getGraphic(ro);
IlvGraphic g  = view.getLayoutProxy(gr);