Rotation
RadDiagram gives you the ability to rotate shapes by dragging their Rotation Thumb or by changing their RotationAngle property.
Please note that the examples in this tutorial are showcasing Telerik Windows8 theme. The Setting a Theme article describes how to set the theme as an application theme.
Enable/Disable Rotation
By default the RadDiagram is enabled for rotation manipulation. In order to disable this functionality, you can set IsRotationEnabled to False
<telerik:RadDiagram IsRotationEnabled="False">
<telerik:RadDiagramShape Geometry="{telerik:CommonShape ShapeType=CloudShape}" Position="100 80" />
</telerik:RadDiagram>
Rotation Angle
You can rotate shapes by using their RotationAngle property:
<telerik:RadDiagram>
<telerik:RadDiagramShape Geometry="{telerik:CommonShape ShapeType=CloudShape}"
RotationAngle="45"
Position="200 200"
x:Name="shape"/>
</telerik:RadDiagram>