Could you elaborate a bit more on the expected rendering performance in this scenario as in our local tests ScatterPointSeries rendered with its default visuals (always the fastest option) is able to cope with 10k items without visible delay. We have also attached a version of the same sample application that uses custom item visuals (via ScatterPointSeries.PointTemplates
) that is only slightly slower but again renders without noticeable delay (you can find the Silverlight version of the same as well -- it behaves even faster than the WPF one).
If the rendering performance does not meet your requirements, you can consider using data sampling mechanism provided in the form of an external ChartDataSource control -- more information can be found here
Hope this helps.
the Telerik team
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