Object o = constructor.newInstance(constructorArgs);
Layout l = (Layout) o;
l.setInitializer(vv.getGraphLayout());
l.setSize(vv.getSize());
layout = l;
LayoutTransition lt =
new LayoutTransition(vv, vv.getGraphLayout(), l);
Animator animator = new Animator(lt);
animator.start();
vv.getRenderContext().getMultiLayerTransformer().setToIdentity();
vv.repaint();