Rollover is not working on sweeping charts

Hi there

I’m running your codesandbox now. I can see the rollover numbers are out of sync with the data once sweeping mode has wrapped around.

Let me report a bug to the scichart.js team, we will get back to you once we have an update.

Best regards
Andrew

Hi

This is now fixed in dev. Fifo sweeping mode is a weird case where we append data using a circular buffer, but then read it back in raw form. The hitTest methods did not quite handle this correctly.

To fix this I have added a getNativeValue method to dataSeries. This allows you to read the correct value when dealing with fifo sweeping series and is especially useful if you are swapping between sweeping/normal. It is used like this:
// dataSeries.getNativeXValues().get(index) is wrong for fifo sweeping
const xValue = dataSeries.getNativeValue(dataSeries.getNativeXValues(), index);

I will update you when this is released, which should be early next week.

Regards
David

@David Burleigh Thank you for the reply. Honestly I do not understand which part in the demo needs to be changed. There is no getNativeXValues, which I would replace in the new version.