2004

140 | Chapter 12 Specify a 3D View
View a Parallel Projection in 3D
You can view the parallel projection of a 3D model from any point in model
space.
Overview of Viewing Parallel Projections in 3D
To determine the point or angle in model space, you can
■ Choose a preset 3D view from a toolbar.
■ 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.
Viewing in 3D is available only in model space. If you are working in paper
space, you cannot use
VPOINT, DVIEW, 3DORBIT, or PLAN to define paper space
views. The view in paper space is always a plan view.
Choose Preset 3D Views
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.
top
NW NE
SW SE
SW iso
top