2012

Table Of Contents
Quick Reference
Commands
3DORBIT
Rotates the view in 3D space, but constrained to horizontal and vertical orbit
only.
DVIEW
Defines parallel projection or perspective views by using a camera and target.
System Variables
BACKZ
Stores the back clipping plane offset from the target plane for the current
viewport, in drawing units.
FRONTZ
Stores the front clipping plane offset from the target plane for the current
viewport, in drawing units.
LENSLENGTH
Stores the length of the lens (in millimeters) used in perspective viewing.
TARGET
Stores the location (as a UCS coordinate) of the target point for the current
viewport.
VIEWDIR
Stores the viewing direction in the current viewport, expressed in UCS
coordinates.
VIEWMODE
Stores the View mode for the current viewport.
VIEWTWIST
Stores the view rotation angle for the current viewport measured relative to
the WCS.
WORLDVIEW
Determines whether input to the DVIEW and VPOINT commands is relative
to the WCS (default) or the current UCS.
Overview of Parallel and Perspective Views | 285