} catch ( Exception e ) {
e.printStackTrace();
System.exit(1);
}
JPrefuseTable table = new JPrefuseTable(t.getEdgeTable());
JFrame frame = new JFrame("edges");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new JScrollPane(table));
frame.pack();
frame.setVisible(true);