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 architectural
(AEC) and mechanical design. In AEC design, the perpendicular view of
the XY plane is the top or plan view;
in mechanical design, the perpendicular 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.
To set a view with a viewpoint
coordinate
- Click inside the compass to specify the
viewpoint. The selected viewpoint is used to view the drawing in
the direction of 0,0,0.
To set a view with two
angles of rotation
- Enter r (Rotate) to specify a new direction
using two angles.
- Enter an angle in the XY plane
measured from the positive X axis.
- Enter an angle from the XY plane
that represents your position while viewing the model in the direction
of 0,0,0.
To set standard views with
VPOINT (AEC convention)
- Enter a coordinate according to the viewpoint
you want:
- Enter 0,0,1 for a
top (plan) view.
- Enter 0,-1,0 for a
front view.
- Enter 1,0,0 for a
right side view.
- Enter 1,-1,1 for an
isometric view.
To set standard views with
VPOINT (mechanical design convention)
-
- Enter a coordinate according to the viewpoint
you want:
- Enter 0,1,0 for a
top view.
- Enter 0,0,1 for a
front view.
- Enter 1,0,0 for a
right side view.
- Enter 1,1,1 for an
isometric view. This view is identical to one with a right-out of
45 degrees and a top-out of 35.267 degrees.
CommandsVIEWVPOINT
Sets the viewing direction
for a 3D visualization of the drawing.
System Variables
