topic point selection based on buffer in Esri Tutorials Questions

point selection based on buffer

T_Zett — Sat, 05 Sep 2020 10:37:51 GMT

Hello everyone,

I would like to select specific points from my dataset based on their proximity to each other. For this I would like to create a buffer around all the points and then only select those, that overlap with at least 3 other buffer zones (to select for areas with high point density).

Is there a way to do this within ArcGIS? Any help would be appreciated.

Thanks in advance!!

Re: point selection based on buffer

DavidPike — Sun, 06 Sep 2020 20:42:20 GMT

There's better workflows, but for a beginner to GIS I might advise:

1. Create buffers from all your points - e.g. buffer all points by 100m

2.Run the Count Overlapping Features (Analysis)—ArcGIS Pro | Documentation tool. (if you don't have pro this may be a bit harder and need some spatial joins etc. let me know if this is the case)

3. use the 'select by location' tool (having selected only those buffer features with an overlap count >= 3) to find the original points within those areas.

Re: point selection based on buffer

T_Zett — Mon, 07 Sep 2020 09:27:56 GMT

Hello David,

thank you for your help, unfortunately I don't have pro, I'm currently

working with 10.7. I have been looking for a way to do the count spatial

joints for this version, but have found nothing so far.

Thank you for any help in advance,

Theresa

Re: point selection based on buffer

DavidPike — Mon, 07 Sep 2020 21:03:51 GMT

This seems to be a fair workflow - Count Overlapping Polygons ArcMap - YouTube

Re: point selection based on buffer

HeatherSmith — Tue, 08 Sep 2020 10:22:49 GMT

The kernal density or point density tools may also help you: An overview of the Density toolset—Help | ArcGIS for Desktop

Re: point selection based on buffer

T_Zett — Wed, 09 Sep 2020 15:28:08 GMT

That one is great, thanks so much!