Sets system viewing parameters to display data in the center of the current window (a convenient way to set up a 3D view).

Generates a 3D view, given a view position and a view direction.

Standard Library procedure that accumulates one or more sequences of translation, scaling, rotation, perspective, or oblique transformation and stores the results in the system variable !P.T.

Lets users interactively define a 3D view, a slicing plane, and multiple cut-away volumes for volume rendering. (Creates a View Control and a View Orientation window in which to make these definitions.)