Marker
The Marker is a scale indicator that points to a value along a scale. It is a small shape that can be located around the scale bar. To add marker to the scale you have to include Marker element to the list of the scale indicators:
<telerik:RadRadialGauge Width="200" Height="200" telerik:StyleManager.Theme="Windows8">
<telerik:RadialScale>
<telerik:RadialScale.Indicators>
<telerik:Marker Value="80" telerik:ScaleObject.Location="Outside"/>
</telerik:RadialScale.Indicators>
</telerik:RadialScale>
</telerik:RadRadialGauge>
The Marker supports the following features:
-
Layout
-
You can set location of the Marker relative to a scale bar using a telerik:ScaleObject.Location property. For example, "Outside"

"Inside"

or "OverCenter"

-
telerik:ScaleObject.Offset relative to a scale bar.
-
telerik:ScaleObject.RelativeHeight that specifies a height of the Marker given as part of the container size.
-
telerik:ScaleObject.RelativeWidth that specifies a width of the Marker given as part of the container size.
-
The standard Telerik provided Marker templates allow to use the BorderBrush and the BorderThickness properties to drawing a border.
The left of BorderThickness property is applied for the border around a Marker. Styles provided by Telerik allow using of the most popular form of Markers. You can change template of the Marker to setup desirable appearance.
-
The Marker can be snapped along to scale ticks or to specified interval.
-
Movement animation allows the Marker to smooth its movement when it shows next value.
-
The refresh rate allows calculating the displayed value using values which are assigned during the specified interval according to the specified method.