Altium Designer Documentation


Created: 14.09.2015 | Updated: 20.08.2021

Parent page: PCB Query Functions - Membership Checks


Returns all polygon pour objects that are members of the specified Polygon Class.


InPolygonClass(ClassName : String) : Boolean/Boolean_String

As you define the Query expression, a pop-up list of all existing user-defined polygon classes, by name, is presented.

Example Usage

InPolygonClass('Top Side Polys')
InPolygonClass('Top Side Polys') = True
InPolygonClass('Top Side Polys') = 'True'

Returns all polygon pour objects that are members of the Top Side Polys Polygon Class.

Not InPolygonClass('Custom Polys')
InPolygonClass('Custom Polys') = False
InPolygonClass('Custom Polys') = 'False'

Returns all objects except polygon pour objects that are members of the Custom Polys Polygon Class.


  1. The single quote characters (') at the start and end of the ClassName string are mandatory.
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