To rotate a view by changing the UCS
Coordinates
panel
ViewAt the Command prompt,
enter ucs.
Coordinates
panel
ViewAt the Command prompt, enter ucs. To rotate the view 90 degrees clockwise, enter 90. To rotate the view 90 degrees counter-clockwise, enter -90.
3D
Views
Plan
View
Current
UCSAt the command prompt,
enter plan. The entire view rotates within the viewport. You may need to specify the scale of the viewport again.
Toolbar: UCS