YAxes disappear when using ZoomExtentsModifier

Hi Son Vu

The problem is the precision on the axis. It is related to this issue here: https://www.scichart.com/questions/wpf/axis-label-disappears-when-zoom-too-much

Unfortunately, SciChart is only able to zoom until the X or Y Axis VisibleRange Max-Min is approximately 1E-12.

This is because all calculations within SciChart are done using 64-bit Double precision variables, and the limit of precision for Double in C# .NET is 15-16 decimal places. We need some precision to do the calculations so we have found that SciChart is usually stable up to VisibleRange Max-Min = 1E-12 but not smaller than that.

In SciChart v5.4.1.12135 or above, we now have a new feature which allows very high precision axis when values are very small. Try apply this code to your axis

numericAxis.TickProvider = new HighPrecisionNumericTickProvider();

This has been tested and can be used to zoom many orders of magnitude smaller than 1E-12 on the NumericAxis.

Best regards,
Andrew