DDUCS Command

Manages defined User Coordinate Systems

	Standard toolbar:
	Tools menu: UCS, then named UCS
	Command line: dducs

The UCS Control dialog box is displayed.

The primary function of DDUCS is to restore saved UCSs.

UCS Names

Displays the names of defined and saved coordinate systems. Select a coordinate system to view information about that system or to restore, delete, or rename it. *WORLD* indicates the World Coordinate System. *PREVIOUS* indicates the previous coordinate system.

*WORLD* Coordinate System (WCS) is always the first entry. If you define other coordinate systems during the current editing session, a *PREVIOUS* entry appears next. You can step back through these coordinate systems by selecting *PREVIOUS* and OK repeatedly. If you don't name the current coordinate system, *NO NAME* is the next entry.

The current coordinate system is identified by the word Current, displayed to the right of the system name.

Current

Restores the selected coordinate system. Makes the selected coordinate system current. To add a UCS name to this list, use the Save option of the UCS command.

Delete

Deletes a user-defined coordinate system. To delete the selected coordinate system, select Delete. You cannot delete the entries *WORLD* or *PREVIOUS*.

List...

Lists a coordinate system's origin point and the direction of its X, Y, and Z axes relative to the current UCS. Select a UCS name and choose List .

Rename To

Renames a coordinate system. To rename the selected coordinate system, enter the new name in the Rename To text box. Then select Rename To. You cannot rename the entries *WORLD* or *PREVIOUS*.

Related Commands: UCS defines or modifies the current user coordinate system. DDUCSP selects a preset user coordinate system.
System Variables: UCSICON controls visibility and placement of the UCS icon in viewports. UCSNAME displays the name of the current coordinate system. UCSORG displays the origin point of the current coordinate system for the current space. UCSXDIR displays the X direction of the current UCS for the current space. UCSYDIR displays the Y direction of the current UCS for the current space.