I have the same problem here. I want to add a zooming behaviour to my RadPolarChart, just like the ChartPanAndZoomBehaviour for a RadCartesianChart.
So unfortunately it is not enaugh to descrease the axis maximum by mouse wheel. For example I want to zoom in the right corner of my polar chart.
Is there something released now or can you give me an advice to build this?
Thank you and best regards,