X Axis control...

I want to put hours on my X axis like this:

"09h30 10h00 11h00 12h00 13h00 14h00 15h00 16h00" Only 8 elements. But I have 390 Y values. So I want to put my X axis labels at a precise place to be synchronize with my Y values. But `IAxisValueFormatter` does not help here since it will not enter in the function for every Y values.

I have a request. To have control over the IAxisValueFormatter function `func stringForValue(_ value: Double, axis: AxisBase?) -> String` called so I can return the right string at the right value.

Is it possible?

Thanks