2012

System Variables
PERSPECTIVE
Specifies whether the current viewport displays a perspective view.
VIEWDIR
Stores the viewing direction in the current viewport, expressed in UCS
coordinates.
WORLDVIEW
Determines whether input to the DVIEW and VPOINT commands is relative
to the WCS (default) or the current UCS.
Choose Preset 3D Views
You can select predefined standard orthographic and isometric views by name
or description.
A quick way to set a view is to choose one of the predefined 3D views. You
can select predefined standard orthographic and isometric views by name or
description. These views represent commonly used options: Top, Bottom,
Front, Left, Right, and Back. In addition, you can set views from isometric
options: SW (southwest) Isometric, SE (southeast) Isometric, NE (northeast)
Isometric, and NW (northwest) Isometric.
To understand how the isometric views work, imagine you are looking down
at the top of a box. If you move toward the lower-left corner of the box, you
are viewing the box from the SW Isometric View. If you move toward the
upper-right corner of the box, you are viewing it from NE Isometric View.
To use a preset 3D view
■ Click View tab ➤ Views panel ➤ View Manager.
■ Select a preset view (Top, Bottom, Left, and so on).
290 | Chapter 10 Change Views