_centerLayout = new CenterLayout();
	public void initialize(Graph g) {		_g = g;		_registry = getRegistry();		_registry.setGraph(new PGraph(g));				// set up attract/repulse		_fsim = new ForceSimulator();		_fsim.addForce(new NBodyForce(-0.4f, -1f, 0.9f));		_fsim.addForce(new SpringForce(4E-5f, 75f));		_fsim.addForce(new DragForce(-0.005f));		_flayout = new ForceDirectedLayout(_fsim, false, false);				// other layouts		_randomLayout = new RandomLayout();		_semiRandomLayout = new SemiRandomLayout(_ctl);		_centerLayout = new CenterLayout();				// create a new action list that		// (a) filters visual representations from the original graph		// (b) performs a random layout of graph nodes		// (c) calls repaint on displays so that we can see the result		_actions = new ActionList(_registry, -1, 20);		_actions.add(new GraphFilter());		_actions.add(new Colorizer()); 		// colors nodes & edges		_actions.add(new RepaintAction());				// antialias?		setHighQuality(_settings.getBoolean(RenderSettings.ANTIALIAS));				_empty = false;				// now execute the actions to visualize the graph		_actions.runNow();				// randomly set all the items		doSemiRandomLayout();	}