2011

Table Of Contents
Place the back of your right hand near the screen and point your thumb in
the direction of the positive X axis. Extend your index and middle fingers as
illustrated, pointing your index finger in the direction of the positive Y axis.
Your middle finger indicates the direction of the positive Z axis. By rotating
your hand, you see how the X, Y, and Z axes rotate as you change the UCS.
You can also use the right-hand rule for determining the default positive
direction of rotation about an axis in 3D space. Point your right thumb in the
positive direction of the axis and curl your fingers. Your fingers indicate the
positive rotation direction about the axis.
NOTE By default, when you specify a view in 3D, it is established relative to the
fixed WCS rather than the movable UCS.
Quick Reference
UCS
Manages user coordinate systems.
UCSICON
Controls the visibility and placement of the UCS icon.
UCSMAN
Manages defined user coordinate systems.
UCSICON
Displays the UCS icon for the current viewport or layout.
UCSVP
Determines whether the UCS in viewports remains fixed or changes to reflect
the UCS of the current viewport.
Specify Workplanes in 3D (UCS) | 215