tg.setGridColor("red");
plot1.setValueGeometry(vg);
plot1.setTimeGeometry(tg);
plot1.setShowValues(true);
plot1.addEventListener(OverPlotEvent.ON_OVER_PLOTDATA, new EventListener() {
@Override
public void onEvent(Event event) throws Exception {
OverPlotEvent evt = (OverPlotEvent) event;
Plotinfo plot = (Plotinfo) evt.getTarget();