topic Re: sliver polygons in Geoprocessing Questions

sliver polygons

JotaUs — Wed, 04 Mar 2020 15:55:15 GMT

I have thousands of sliver polygons outside of my study area. What is the best way to eliminate them automatically?

Those polygon islands are the slivers

Note: I can´t select by attributes (small areas) because then it would eliminate other polygons inside the study area.

Re: sliver polygons

DuncanHornby — Wed, 04 Mar 2020 16:36:58 GMT

Whats this image you have uploaded? In what context is it about sliver polygons?

Re: sliver polygons

JotaUs — Wed, 04 Mar 2020 16:44:54 GMT

Yes, those polygon "islands" are the slivers

Re: sliver polygons

DavidPike — Wed, 04 Mar 2020 18:26:06 GMT

As Duncan says, 'sliver' is not the right terminology.

Without seeing the rest of the data, I would suggest selecting you main land body and then using select by location to select all features intersecting and within it.

Export your selection to a new feature, or switch selection and delete.

Re: sliver polygons

ShaneMiles — Fri, 06 Mar 2020 04:47:27 GMT

Hi Jota Us‌,

If your data is projected you could do a selection by Shape area greater than the "sliver" Island polygons, therefore selecting only the polygons you wish to keep and export the selection to a new feature. Preserving your original data. This also assumes that all the "slivers" are smaller in area than your study area.

Shane