Currently, RadChartView doesn't support the ChartToolTipBehavior for series that are using BitmapRenderOptions, Direct2DRenderOptions, or SkiaRenderOptions. The tooltip doesn't display.

Currently the MouseWheel event used to zoom is not handled which means that the event will bubble to the parent elements which can lead to scrolling issues. Add an option to handle the MouseWheel event when the chart zooming is enabled.

To get the desired result, you can handle the MouseWheel event of the chart manually.

 private void RadCartesianChart_MouseWheel(object sender, MouseWheelEventArgs e)
 {
     e.Handled = true;
 }

Implement a new LabelFitMode that prevents the axes labels from overlapping by increasing the LabelInteval.
Declined: This is no longer necessary after introducing the SmartLabelsMode.

I would like to be able to create a histogram where both the x and y axis are linear series and where I can specify the start and end position of each bin (not just one). Previously described workarounds include using StepLineSeries and bar series which cannot have two linear series. I cannot use a scatter plot series as they do not provide the step-wise look of the histogram.  Please add this support! 

ChartView: Add support for axes rendering, when no data is available

As a workaround add a series with one point and set its color to transparent.

<telerik:ScatterLineSeries XValueBinding="."
                  YValueBinding="."
                  Stroke="Transparent">
    <telerik:ScatterLineSeries.ItemsSource>
        <x:Array Type="system:Int32">
            <system:Int32>0</system:Int32>
        </x:Array>
    </telerik:ScatterLineSeries.ItemsSource>
</telerik:ScatterLineSeries>

Create 2-dimensional contour plot from unstructured 3-dimensional data.  Means the points are randomly arranged in the XY plane.

Attached file shows an example of what I would like to achieve.  I think the contour plot Telerik does currently requires a structured grid, i.e. full grid of NxM points.

Please add the Contour series for showing the scatter (X,Y) lines which are connecting the points with the equial Z- coordinate. Currently a scatter 3D surface (X,Y,Z)  can now be shown only as 3D chart.

Often it is necessary to show 3D surface as 2D chart with lines connecting (X,Y) points with "same Z-level" .

Samples:

• Geographic map showing the contour lines of the same height: https://en.wikipedia.org/wiki/Contour_line ,
• Map of the points with the same temperature inside the 3D container,
• ...

References:

• https://www.infragistics.com/help/winforms/datachart-scatter-contour-series 
• https://www.infragistics.com/help/winforms/geographicmap-using-geographic-contour-line-series 
• https://mathworld.wolfram.com/ContourPlot.html 

Support for displaying error bars