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Spline Series Example Extension

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Hello,

I had a need to get the example of spline series you show into my application.

I wanted to also implement data point selection. Currently it’s not working out-of-the-box, and I wanted to know if you can give me some pointers on what methods should I modify, or if it’s too complex.

Thank you very much.
Sebastian

Version
4.2.9002
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Best Answer
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Hi Sebastian,

Starting from v4.2.3.9967 you may notice that our Spline Scatter Line Chart example is modified a bit. Please try now to use DataPointSelectionModifier with it. You can check an attachment as well.

Best regards,
Andrii

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Hi Sebastian,

Thanks for your question. In fact, data point selection is possible via DataPointSelectionModifier. Please take a look at our PointMarkers Selection example. Also, you can find an article in the documentation here.

Hope this helps!

Best regards,
Yuriy

  • Sebastian de Ugarriza
    Hello Yuriy, I have already tried that. It’s not working as expected. Selection through drawing a rectangle triggers the selection changed event and the SelectedPointMarkers property is filled with the corresponding data point values, but if I click on a single point, it triggers the selection changed event but SelectedPointMarkers is empty. Also point markers are not being colored based on the SelectedPointMarker I’m setting for the series. I followed the PointMarkers Selection example. Thank you. Regards, Sebastian
  • Yuriy Zadereckiy
    Hi Sebastian, doesn’t it work in our example or in your application? In the example it looks that single points are being handled fine, as well as SelectedPointMarker .
  • Sebastian de Ugarriza
    The PointMarkers Selection example works fine, but that’s because you guys have implemented everything necessary for the FastLineRenderableSeries. If I try the same for the Spline Series you are showing in the corresponding example, it doesn’t work. I’m assuming it’s because the Spline series doesn’t have all the implemented features to make data point selection work correctly.
  • Yuriy Zadereckiy
    Hi Sebastian, thank you for the update. Please let me log this and we will investigate.
  • Sebastian de Ugarriza
    Thank you very much Yuriy. Again, I don’t mind implementing the features myself, it’s just that I’m a little lost at what each method does since I’m having trouble understanding when each method is called and why.
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