Altium Designer Documentation
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PCB Query((Fields))_AD
PCB Query Fields((M to R))_AD
Query_Lang-PCBFunctions_Fields_PolygonArcApproximationPolygonArcApproximation_AD
This document is no longer available beyond version 21. Information can now be found here: PolygonArcApproximation for version 25
Parent page: PCB Query Functions - Fields
Summary
Returns all polygon pour objects whose Arc Approximation property complies with the Query.
Syntax
PolygonArcApproximation : Number
Number will follow the measurement units currently employed for the document – either Imperial (mil; 1mil = 0.001inch) or Metric (mm; 1mm = 0.001meter).
A specific option for the measurement unit can be specified – overriding the default units specified at the document level – through use of an additional measurement unit-based keyword:
AsMils(PolygonArcApproximation) : Number– to specify an approximation in mil.AsMM(PolygonArcApproximation) : Number– to specify an approximation in mm.
Example Usage
PolygonArcApproximation = 0.0127
Returns all polygon pour objects that have an Arc Approximation property which is 0.0127 current measurement units.
PolygonArcApproximation >= 1.27
Returns all polygon pour objects that have an Arc Approximation property which is greater than, or equal to, 1.27 current measurement units.
AsMils(PolygonArcApproximation) Between 0.01 And 0.02
Returns all polygon pour objects that have an Arc Approximation property which is greater than, or equal to, 0.01mil and less than, or equal to, 0.02mil.
AsMM(PolygonArcApproximation) < 0.0127
Returns all polygon pour objects that have an Arc Approximation property which is less than 0.0127mm.
Tips
- The Arc Approximation property is only defined for polygon pour objects.
- The child objects of polygon pour objects returned by the Query, are not returned.