VisualGraph.run();
SwingUtilities.invokeLater(new Runnable() {
public void run() {
try {
AModel model = new SQLite4JavaModel();// create model
GraphLayoutManager layoutManager = new GraphLayoutManager();
SwingUserInterface view = new SwingUserInterface(model, "Welcome to Visual Graph", layoutManager);// create user interface
// create plugin parameter--------
PluginParameter param = new PluginParameter(model, view);
// adding system functions--------