show big data point smartly

[jzhou]

Hello, 

I create a datatemplate for PointTemplate of LineSeries, each point will be displayed as a small image, it works and show the image.

The problem is if there are a lot of points in a small area, all images are overlapped, see image1.

Is it possible to hide the images when the points are too close, and show the image when zoom + and the points have a enough space to show (see image2)

Thanks

[Petar Marchev]

Hello,

There is no such a built-in feature that will allow you to do that.

You can use custom logic to hide some of the point visuals. You can use a combination of the SizeChanged, ZoomChanged, PanOffsetChanged and DataBindingComplete events to run a custom method. In the method you can iterate all data points and check their LayoutSlots to see if they overlap. You can them set Opacity 0 to some of the data point visuals (GetDataPointVisual method of the series).

Regards,
Petar Marchev
Telerik