Implement two-dimensional Radar / Polar series type for WPF / Silverlight.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

RadChart should support 3D Surface Series Type.

This feature is now available as part of the ChartView control since R3 2016 Official release. Refer to the link below for more information.
http://docs.telerik.com/devtools/wpf/controls/radchartview3d/series/surfaceseries3d.html

On data change RadChart should redraw only the series items that are actually changed, and not the whole series.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Implement logarithmic X axis in RadChart.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Implement two-dimensional Funnel series type for WPF / Silverlight.

Available in R3 2017 Official Release Version.

Additional functionality for creating labels and flags over the annotation is needed.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Track values of current mouse cursor X position.
Can be seen here: 
http://www.google.com/finance?q=INDEXDJX:.DJI,INDEXSP:.INX,INDEXNASDAQ:.IXIC
and here:
http://people.iola.dk/olau/flot/examples/tracking.html

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (TrackBallBehavior & CrosshairBehavior).

Implement pyramid series type in RadChart.

Manhattan Bar 3D Series Type (with support for real Z axis)

Decline reason: You can use the new RadChartView3D BarSeries3D.
http://docs.telerik.com/devtools/wpf/controls/radchartview3d/series/barseries3d

Currently the axis labels are rotated around their center. The rotated labels top edge should be aligned with the center of the corresponding data point (e.g. bar).

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

The user needs to replace the TextBlock with a CheckBox.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (axes have a LabelTemplate property).

Provide the ability to align all labels to the left or right at a specified margin from the pie chart.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Support for multiple X axes on the same chart area.

eg: Graphing the amount of products sold, per category, as a bar chart
+ a line chart showing the cumulative total of products sold over the past year.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

enable localization for human readable formats

Implement Scatter 3D series type that can plot data again X-Y-Z coordinate system (real Z axis).

Add RotationAngle property so series item labels can be rotated wih C# / VB.NET code.

The user wants the Y axis appear in the right.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

The developer should be able to change the axis origin location in order to enable scenarios like this one:

- Essentially you have a list of negative numbers: 0, -10, -24, -35 and so on.
- If you want to show them as positive numbers (pointing upwards), y

Separate the style of the AxisStyles.GridLineStyle into MajorGridLineStyle and MinorGridLineStyle

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Implement click events on the series items labels.