Constrained 3D Orbit

                     3DORBIT  activates a 3D Orbit view in the current viewport. You can view your entire drawing or select one or more objects before starting the command.

                     When 3DORBIT is active, the target of the view stays stationary and the camera location, or point of view, moves around the target. However, from the user's point of view, it appears as if the 3D model is turning as the mouse cursor is dragged. In this way, you can specify any view of the model.

1. Open                    a drawing with 3D objects
2. Choose                 View, Orbit, Constrained Orbit                                                                                                                          (or)
3. Type                      3D ORBIT at the command prompt                                                                                                              Command: 3Dorbit
4. Click                      and drag to move your object in 3D.