Altium Designer Documentation
...
PCB Query Functions
Membership Checks
InUnion
Created: September 19, 2015 | Updated: August 20, 2021
| Applies to versions: 15.1, 16.0, 16.1, 17.0, 17.1, 18.0, 18.1, 19.0, 19.1, 20.0, 20.1 and 20.2
Now reading version 19. For the latest, read: InUnion for version 21
Parent page: PCB Query Functions - Membership Checks
Summary
Returns all objects (parent and children) that are part of the specified union.
Syntax
InUnion(Union : Number) : Boolean/Boolean_String
Example Usage
InUnion(1)
InUnion(1) = True
InUnion(1) = 'True'
Returns all objects (parent and children) that are part of the union whose assigned number is 1.
Not InUnion(4)
InUnion(4) = False
InUnion(4) = 'False'
Returns all objects except objects (parent and children) that are part of the union whose assigned number is 4.