Defines parallel projection or perspective views by using a camera and target

Displays the plan view of a specified user coordinate system

Stores the back clipping plane offset from the target plane for the current viewport, in drawing units

Stores the front clipping plane offset from the target plane for the current viewport, in drawing units

Stores the viewing direction in the current viewport, expressed in UCS coordinates

Stores the view rotation angle for the current viewport measured relative to the WCS