If a CrosshairLayer is applied to a chart containing multiple ScatterSeries and no TargetSeries is set. Various crosshairs will be displayed. It seems to be that the X/Y positions of the cross-points are calculated by some distance calculation. This results in different X values for display.
Is there a way to limit the Y-interpolations the same current X value corresponding to the mouse position?
ScatterSeries doesn't support interpolated annotations so the annations will always snap to the data point and appear calculated. What you could try using is a SplineSeries but your axis member paths would have to change as the CategoryXAxis values are designed to be equally distant.
I suggest submitting a feature request for annotations to adhere to `useInteropolation` for ScatterSeries.
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Michael DiFilippoSoftware DeveloperInfragistics, Inc.