Join by "Largest Overlap" doesn't work as expected

389
2
05-24-2023 02:51 PM
Scoth
by
New Contributor III

Maybe I'm missing something, but "Largest Overlap" doesn't make sense. Sometimes, joining features get joined to multiple target features, or multiple joining features get joined to a single target feature.

If it's based on the LARGEST overlap, shouldn't a feature only get joined once... to the target feature it has the largest overlap with? "Largest" means the most, not just a lot of overlap.

2 Replies
Libra66
New Contributor

I'm having a similar problem. The target polygons are getting joined with the smallest overlapping join polygons instead of the largest! Did you ever get a solution?

James_Whitacre_PGC
New Contributor III

Trying to revive this topic...

I have experienced the same issue as @Libra66 when my data is in a geographic coordinate system. Once I projected it to a projected coordinate system, it identified the correct largest overlap. Is there a bug here? Maybe the tool needs to be adjusted for geodesic area?