Modifying a User-Defined Coordinate System

From the Analysis menu, select Set User Coordinate System.

The User Coordinate Systems dialog box appears.

From the Coordinate Systems list, select the UCS that you want to modify.

The settings you configured for the UCS are displayed.

To change the name, highlight the name enter the new one.

To change the position of the UCS, click the Position tab, then from the Define From list, select the point where you want the UCS axes to appear.

See Position Options

To change the orientation, click the Orientation tab, then from the Define From list, select the point where you want to orient the UCS.

See Orientation Options

To show the UCS axes, select Show Trihedron. To hide the UCS axes, deselect the check box.

To change the UCS that it is relative to, select the UCS from the Relative To list.

Click OK to close the User Coordinate Systems dialog box.

If you modified the position or orientation, the UCS axes dynamically move to the new position. A change in Show Trihedron option will make the UCS axes appear or disappear accordingly. Additionally, a name change will display the new name in the Coordinate Systems list.