Gauge chart - click on chart and return the segment (plotband)

I want to be able to click on a Gauge and find out the segment (or plotband) of the gauge that was clicked. I have added a ChartClickListener event and this returns an xAxisValue (typically between 0.45 and 0.75) and a yAxisValue (in my case between 7500 and 8200) but I cannot find a way to convert that to the actual value/segment/plotband that was clicked.
Is there anyway to do this?