To Create a Datum Plane and Adjust Its Display by Size
1. Click
Model >
Plane. The
Datum Plane dialog box opens.
2. Click the References collector, and in the graphics window, select placement references for the new datum plane.
|  To add multiple references, hold down the CTRL key while you select. |
3. Select the required constraint option from the constraint list in the References collector.
4. Repeat Steps 2 and 3 until you have selected enough constraints. You might have to select additional references to make the datum fully constrained.
5. Click the Display tab to adjust the size of the outline display of the datum plane.
6. Select the Adjust outline check box.
7. Select Size to adjust the size of the outline display to the specified values.
8. Type values in the Width and Height boxes to specify the size of the datum plane outline display.
| The height and width values of the datum plane outline display are not displayed in the graphics window. The two-dimension outline handles are displayed at each corner of the datum plane preview. Alternatively, drag one of the handles to change the width or height of the datum plane display outline. |
9. Select the Lock aspect ratio check box to maintain the proportion of the height and width of the outline display.
10. Click OK.