addControlListener(new DragControl());
addControlListener(new ZoomToFitControl());
addControlListener(new ZoomControl());
addControlListener(new PanControl());
addControlListener(new FocusControl(1, "filter"));
addControlListener(new HoverActionControl("repaint"));
// filter graph and perform layout
m_vis.run("filter");
// maintain a set of items that should be interpolated linearly