Altium Designer Documentation


Created: August 2, 2022 | Updated: August 2, 2022

Parent page: PCB Query Functions - Membership Checks


For numeric properties of objects (e.g. height, width, radius, etc), this keyword is used to convert the current value - measured in the default workspace units - into metric units - mm - where 1mm = 0.001meter, which is then tested against the value entered in the expression.


AsMM(Keyword : Number) : Number

Example Usage

AsMM(ArcRadius) = 6.35
Returns all arc objects that have a Radius property which is 6.35mm.

AsMM(Height) Between 7.62 And 12.7
Returns all component objects that have a Height property which is greater than, or equal to, 7.62mm, and less than, or equal to, 12.7mm.

AsMM(PolygonGridSize) >= 0.254
Returns all polygon pour objects that have a Grid Size property which is greater than, or equal to, 0.254mm.

AsMM(Width) < 1.27
Returns all arc and track objects that have a Width property which is less than 1.27mm.

AsMM(TraceLength) = 1
Returns all arc and track objects that have a Length which is equal to 1mm.

Note - due to an issue in the software, to correctly detect the TraceLength using the AsMM keyword the board units must be set to mils before running the query.


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