Defining a User Coordinate System

From the Analysis menu, select Set User Coordinate System.

The User Coordinate Systems dialog box appears.

Click New.

The name of the User-Defined Coordinate System (UCS1 for the first one) appears in the Coordinate Systems list.

To change the name that you want for the UCS, in the Name field, enter a new name.

Click the Position tab to define the origin of the UCS.

From the Define From list, select the point where you want the UCS axes to appear.

See Position Options

Click Apply.

Click the Orientation tab to define the orientation of the UCS.

From the Define From list, select the point where you want to orient the UCS.

See Orientation Options

Click Apply.

To hide the UCS axes on the model, deselect the Show Trihedron check box.

Note: This option is selected by default.

Click OK to close the User Coordinate Systems dialog box.

Note: If there is more than one coordinate system for this file, select which coordinate system the new UCS will be relative to from the Relative To list. Otherwise, the new UCS will be calculated with respect to the World Coordinate System.

The newly active trihedral coordinate system appears bolder and larger.