idea Create a closed polygon from a set of points with specific distance & angle criteria in ArcGIS Pro Ideas

Create a closed polygon from a set of points with specific distance & angle criteria

TimTriesch1 — Mon, 09 Feb 2026 22:40:01 GMT

I need to create closed polygons from a set of points with the following criteria: The points must be less than 300 feet of each other. The angle between the points must be 90 - 180 degrees. The polygons must be no less than 5 acres.

Re: Create a closed polygon from a set of points with specific distance & angle criteria

RPGIS — Tue, 10 Feb 2026 00:06:44 GMT

Hi @TimTriesch1,

Do you mean to use the Grid Index Features Tool. You can specify size and everything which sounds like what your looking for.

Re: Create a closed polygon from a set of points with specific distance & angle criteria

TimTriesch1 — Thu, 12 Feb 2026 22:59:15 GMT

Nope, thanks though, but that is not what I mean.

The goal with this set of points is to create a polygon boundary that includes as many of the points as possible with the following constraints: The distance between points must be less than 300' and the angle between the points must be between 90 and 180 degrees.

It can be done manually, but is very tedious and allows for human error. We are hoping to develop a script or tool that automates this and get the same results each time it is used with no errors.

Re: Create a closed polygon from a set of points with specific distance & angle criteria

DanLee — Wed, 25 Feb 2026 00:11:40 GMT

Hi @TimTriesch1,

This seems a unique use case. It is pretty easy to analyze distances between points and even create lines from each point to it's surrounding points that are within 300ft, as shown below. The highlighted are 12 lines from IN_FID 1. Thanks for sharing your data.

However, the angle criteria is not clear to me. Could you please explain in detail, or illustrate with some screenshots, what you meant by "the angle between the points must be between 90 and 180 degrees"? How is the angle between the points defined or measured? Thanks!

Re: Create a closed polygon from a set of points with specific distance & angle criteria

DanLee — Fri, 13 Mar 2026 16:14:24 GMT

Hi @TimTriesch1,

Just want to double check that you have read my comment and question above. I look forward to your clarification on the angle criteria and further discussion. Thanks.