Can I custom draw circle in LineChart in version 3.0 ?[help]

[wzio]

Can I draw like this ?

In Charts 2.0, I override the func drawExtras(context: CGContext) in LineChartRenderer, hack the func drawCircles(context: CGContext) then just draw my own shape. It may be not a good solution but It is work.

but In Charts 3.0, I found that I can not override the function drawCircles , the drawCircles use the _xBounds which is internal. Any solution ?

[wzio]

I solved by combine scatter chart and line chart