Model-Based Definition > Model-Based Definition > Annotation Features > Creating Annotation Features > To Create a Set Datum Tag Annotation Element
  
To Create a Set Datum Tag Annotation Element
1. Define the active annotation orientation before creating the first annotation in any session.
2. Click Annotate > Annotation Feature. The ANNOTATION FEATURE dialog box opens.
3. Click . The Set Datum Tag dialog box opens. By default, Datum appears selected under Reference.
4. To specify a reference for the set datum tag, under Reference click one of the following.
Datum—Click Datum to specify a datum plane or axis as the reference and then select a datum plane or axis from the model. Creo Parametric uses the selected datum plane to create a set datum tag Annotation Element.
The name for the selected datum plane or axis is displayed in the Name box.
The On Datum option under Placement is selected by default.
Geometry—Click Geometry to specify a geometry item as the reference and then select a planar surface, cylindrical surface, circular edge, or circular datum curve from the model appropriately. As soon as the entity is selected,
Depending upon the type of the selected geometry, a new datum plane or datum axis is automatically created. The datum feature is embedded inside the Annotation Feature on the Model Tree. Creo Parametric uses this datum feature to create a Set Datum Tag Annotation Element.
The Name box displays the name of the datum feature.
The On Geometry option under Placement is selected by default.
5. If required, type a new name in the Name box. This name must not be an existing one.
6. To specify the placement type, under Placement click one of the following.
On Datum—Click to place the set datum tag on the selected datum or the automatically created datum.
In Dim—Click to place the set datum tag attached to the dimension.
In Gtol—Click to place the set datum tag attached to the GTOL.
On Geometry—Click to place the set datum tag on a geometry.
With Leader—Click to place the set datum tag with leader on a geometry. On clicking, an outline of the leader with the tag appears at the pointer and moves with the pointer.
7. Depending on the type of placement that you selected, perform the following to place the set datum tag.
For On Datum, the set datum tag is placed on the datum.
For In Dim, select a dimension in the graphics window. The set datum tag is placed in the dimension.
For In Gtol, select a GTOL in the graphics window. The set datum tag is placed on the GTOL.
For On Geometry, select a location on a geometry which is coplanar with the datum plane, or coaxial with the datum axis. The set datum tag is placed on the geometry at the selected location.
For With Leader, do the following steps:
1. Select a location on a geometry which is coplanar with the datum plane, or coaxial with the datum axis. The leader is attached on the geometry at the selected location.
2. To position the datum tag below the leader, right-click and click Below on the shortcut menu. The default position of the tag is above the leader.
3. Move the pointer to the required location and click to place the tag.
8. To display the datum graphics select the Display Datum Graphics box.
 
Set datums are assigned to the active combination state at the time they are set and the display status of set datum tags is shown. However, the accompanying datum geometry is not displayed unless the placement of the set datum tag is On Datum or you define the datum graphic to be shown by selecting the Display Datum Graphics box.
For On Datum, the Display Datum Graphics box is selected by default and unavailable.
9. If required, specify a new location for the set datum tag annotation.
To specify a new location on the datum axis click Pick on Datum. Select a point on the axis. The set datum tag is placed at the selected point.
 
* Pick on Datum is not available if you are creating a set datum tag Annotation Element for a datum plane.
Similarly, to specify a new location for the set datum tag annotation on the geometry use Pick Geom.
To specify a new dimension or GTOL use Pick Dim or Pick Gtol, respectively.
10. Click OK in the Set Datum Tag dialog box. The set datum tag is added to the ANNOTATION FEATURE dialog box.
 
After you have created the set datum tag annotation, you can change the direction of the solid triangle by clicking Flip on the shortcut menu that appears when you right-click the set datum tag annotation element on the Model Tree or in the ANNOTATION FEATURE dialog box. Flipping does not affect the text rotation.
If you remove the set datum tag Annotation Element using the ANNOTATION FEATURE dialog box, then the old datum feature continues to exist in the model. The old feature displays the datum name in a box that is attached to the datum feature.