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As shown in the image, I would like to select or export features within a layer that intersect one another, and also within a specified distance.

enter image description here

I am trying to use the "Select Layer by Location" tool, but it is selecting all the features.

How do I do this in ArcMap?

  • If you also want to know how to do this in QGIS then feel free to ask that in a separate question. – PolyGeo Aug 14 at 19:14
  • I think I misunderstood your diagram, you don't have an existing query that you want to select intersecting polygons and those within a distance, rather you want to create a brand new selection of polygons that overlap or are within a distance of each other, correct? – RGfromRWBJV Aug 14 at 20:20
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Assuming I understand correctly, I would use a buffer instead using half the distance and dissolving adjacent buffers (if you buffer each polygon by half the distance when two or more polygons are near another the sum will equal the full distance). Then, use a spatial join on your buffer using the input polygons to get the count of the number of input polygons that intersect each buffer. Then attribute query any buffer that has a count of >1 input polygons associated with it. Then finally, select by location the input polygons that intersect your queried buffer layer.

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