Construct Polygons tool, default tolerance

06-24-2020 02:27 PM
New Contributor II

I recently came across a problem where I had created a number of polygons from existing lines using the "Construct Polygons" editing tool (default tolerance 0.0108 ft), which used a different tolerance than the feature classes that I was working with (default tolerance 0.00328 ft). After I validated the topology (no gaps, no overlaps, default tolerance 0.00328 ft), I had A LOT of errors where adjoining polygons had gaps or overlaps along their shared boundary.

So lesson learned to always check default tolerance values, but my question is what's the purpose of this difference in default tolerance settings?

ArcGIS Pro 2.5.1 (but the same issue comes up on ArcMap 10.6), Windows 10.

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