DESCRIPTION
Gets/sets view parameters (local units). The view command accepts the following subcommands:
center [x y z]--get/set the view center of the current view.
size [val]--get/set the view size of the current view.
eye [x y z]--get/set the eye point of the current view.
ypr [y p r]--get/set the yaw, pitch, and roll of the current view.
quat[v1 v2 v3 v4]--get/set the view in the form of a quaternion.
aet[a e t]--get/set the azimuth, elevation, and twist of the current view.