Rotating in three dimensions

You can rotate selected entities about a specified axis in three-dimensional space. You select the entities to rotate and then define the axis of rotation either by specifying two points; selecting an existing entity; aligning the axis with the x-, y-, or z-axis of the current UCS; or aligning the axis with the current view.

To rotate an entity about an axis in three dimensions  

   1   Do one of the following to choose 3D Rotate ():

    On the ribbon, choose Edit > 3D Rotate (in Modify).

    On the menu, choose Modify > 3D Rotate.

    On the Modify toolbar, click the 3D Rotate tool.

    Type rotate3D and then press Enter.

   2   Select the entities to rotate, and then press Enter.

   3   Choose from one of the following options: Entity, Last, View, Xaxis, Yaxis, Zaxis.

   4   Specify the rotation angle.

   5   Specify the reference angle.