<Rotation3D Angle="45" Axis="0,0,0" />
or:
<Rotation3D Angle="45" > <Rotation3D.Axis> <Vector3D X="5" Y="5" Z="5" /> </Rotation3D.Axis> </Rotation3D>
<Rotation3D .../> rotates a 3-D model around the specified Axis at the specified Angle.
Angle (required)
This Double represents the spherical orientation of a transformed 3-D model as an angle between 0 and 360 degrees.
Axis (required)
This Vector3D represents the axis around which the rotation should occur.