To determine
the point or angle in model space, you can
Choose a preset 3D view from the View toolbar.
Enter a coordinate or angles that represent your viewing
location in 3D.
Change to a view of the XY plane of the
current UCS, a saved UCS, or the WCS.
Change the 3D view dynamically with your pointing device.
Set front and back clipping planes to limit the objects being
displayed.
Viewing in 3D
is available only in model space. If you are working in paper
space, you cannot use 3D viewing commands such as VPOINT, DVIEW, or PLAN to define paper space views.
The view in paper space is always a plan view.