EntityCollection entities = null;
if (info != null) {
entities = info.getOwner().getEntityCollection();
}
SignalsDataset signalData = (SignalsDataset) dataset;
Number x = signalData.getX(series, item);
Number y = signalData.getY(series, item);
int type = signalData.getType(series, item);
//double level = signalData.getLevel(series, item);
double xx = horizontalAxis.valueToJava2D(
x.doubleValue(), dataArea, plot.getDomainAxisEdge()
);