2004

View a Parallel Projection in 3D | 141
To use a preset 3D view
■ From the View menu, choose 3D Views. Then choose a preset view (Top,
Bottom, Left, and so on).
View toolbar
Command line
VIEW
Define a 3D View with Coordinate Values or
Angles
You can define a viewing direction by entering the coordinate values of a
point or the measures of two angles of rotation.
This point represents your position in 3D space as you view the model while
looking toward the origin (0,0,0). Viewpoint coordinate values are relative to
the world coordinate system unless you change the
WORLDVIEW system
variable. The conventions for defining standard views differ between archi-
tectural (AEC) and mechanical design. In AEC design, the perpendicular view
of the XY plane is the top or plan view; in mechanical design, the perpendic-
ular view of the XY plane is the front view.
You can rotate a view using
DDVPOINT. The following illustration shows a
view defined by two angles relative to the X axis and the XY plane of the
WCS.
viewpoint
angle from XY plane
angle from X axis
Z
Y
X
view direction