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Radchart performance and 150000 points.

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Serg
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Serg asked on 13 Jan 2012, 01:42 PM
Greeting.

Can you give any information about Radchart performance at huge datasets.
I want to display ScatterPlot with 150.000 point inside.
I cannot use SamplingThreshold, because i must show all points.
(if i have 500x500point area, in bad scenario i must show 500*500=250.000 points)


I try to create some tests.
With SamplingThreshold=200, when i add to datasource my dataset, it want 4 seconds or so.
And after this control painted without any pause.
With SamplingThreshold=5000 i wait  10-15second before control painted.
With SamplingThreshold=25000 i wait 100-150second before control painted.
With SamplingThreshold=100000 i wait 10 minutes... no way... application struck.
I try disable animation, disable autorange etc etc etc, nothing help.

Can Radchart potentially show 150.000 point, or it just impossible ?
If it possible, may be any example with big set available ?

Best Regards
Serg

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Ves
Telerik team
answered on 18 Jan 2012, 11:04 AM
Hello Serg,

Indeed, RadChart will struggle with this amount of data. Rendering 150000 visuals would push the limits of the framework anyways and actually RadChart renders more than one of them for a point. Then we should add the processing by RadChart. While this would still be true for RadChartView, I would suggest giving it a try. You should be able to see some performance improvement.

Best regards,
Ves
the Telerik team

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