2011

Table Of Contents
LENSLENGTH
Stores the length of the lens (in millimeters) used in perspective viewing.
PERSPECTIVE
Specifies whether the current viewport displays a perspective view.
PERSPECTIVECLIP
Determines the location of eyepoint clipping.
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.
Define a Parallel Projection
You can define a parallel projection.
To determine the point or angle in model space, you can
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.
88 | Chapter 10 Change Views