Controls the visibility
and placement of the UCS icon.
The UCS icon displays the orientation of the
user coordinate system (UCS) axes and the location of the UCS origin.
If the location of the UCS origin is not visible in a viewport,
the UCS icon is displayed in the lower-left corner of the viewport
Different coordinate system icons are displayed
in paper space and model space. In both cases, a plus sign (+) appears
at the base of the icon when it is positioned at the origin of the
current UCS. The letter W appears in the Y portion
of the icon if the current UCS is the same as the world coordinate
A box is formed at the base of the icon if you
are viewing the UCS from above (the positive Z direction).
The box is missing if you are viewing the UCS from below.
If the UCS is rotated so that the Z axis
lies in a plane parallel to the viewing plane—that is,
if the XY plane is edge-on to the viewer—the
2D UCS icon is replaced by a broken pencil icon.
List of Prompts
The following prompts
Enter an option [ON/OFF/All/Noorigin/ORigin/Properties] <current>: Enter
an option or press Enter
Turns off display of the UCS icon.
Applies changes to the icon in all active viewports.
Otherwise, UCSICON affects only the current viewport.
- No Origin
Displays the icon at the lower-left corner of
the viewport regardless of the location of the UCS origin.
Displays the icon at the origin (0,0,0) of the current
coordinate system. If the origin is off the screen, or if the icon
cannot be positioned at the origin without being clipped at the
viewport edges, the icon is displayed at the lower-left corner of
Displays the UCS
Icon dialog box, in which you can control
the style, visibility, and location of the UCS icon.