What does the 'Automatic Selection Progression' option do?
When defining a constraint that requires multiple selections, 'Automatic
Selection Progression', will automatically advance to the 'Select Object to
Constraint to' prompt after the first entity has been selected.
If 'Automatic Selection Progression' is turned OFF, once the first object(s) is
selected to constrain, the MiddleMouseButton needs to be selected in order to
advance the prompt to select the object to constrain to. If 'Automatic
Selection Progression' is turned ON, once the first object is selected to
constrain, the prompt is automatically advanced to select the object to
1. In NX, select 'File-->New' and create a new Modeling part file.
2. Once the new part is open, select 'Insert-->Sketch in Task Environment'.
3. OK the Create Sketch dialog to accept the default sketching plane.
4. If 'Continuous Auto Dimensioning' is turned on, select
'Tools-->Constraints-->Continuous Auto Dimensioning' to turn it off.
5. Draw atleast 4 lines at odd angles to each other.
6. Select 'Insert-->Geometric Constraints'.
7. Under the Constraint header, select 'Perpendicular'.
8. Under the Settings header, turn 'Automatic Selection Progression' off.
9. Select one of the lines to constrain.
Notice the first prompt, 'Select Object to Constrain', is still active.
This allows the selection of more than one entity to be made perpendicular.
10. Select the MiddleMouseButton to manually advance the prompt to
'Select Object to Constrain to'.
11. Select a second line to constrain to.
12. Under the Settings header, turn 'Automatic Selection Progression' on.
13. Select one of the lines to constrain.
Notice the second prompt, 'Select Object to Constrain to', is
There is no need for a MiddleMouseButton to advance the prompt.
However, this only allows for the selection of one entity to be made
perpendicular at a time.
14. Select another line to constrain to.
Notes and References
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