//gd.addSlider(new WeightedEdgeGraphFilter())
JFrame jf = new JFrame();
jf.getContentPane().add(gd);
jf.pack();
jf.show();
jf.addWindowStateListener(new WindowStateListener() {
public void windowStateChanged(WindowEvent e) {
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
stop = true;
gd.stop();