topic Re: Update a Feature Layer from the same Feature Layer in ArcGIS GeoEvent Server Questions

Update a Feature Layer from the same Feature Layer

JeffSilberberg — Tue, 02 Sep 2025 13:36:39 GMT

So I have an Excel worksheet with 200 rows, each of the rows has descriptive data and a Lat/Lon value. I can upload that and create a Feature Layer.

Now what I would like to do, I think, is run an analytic that walks through this feature layer, adds a geoPoint, and uses the data in one of the columns to calculate a radius around the point to create a ring, resulting in the same Feature layer just with additional columns.

Can I do an Analytic that reads the Feature Layer as the Input and does an update output, maybe as the geoEvent equivalent of a Big Data Analytic?

Re: Update a Feature Layer from the same Feature Layer

JakeSkinner — Tue, 02 Sep 2025 14:55:48 GMT

Hi @JeffSilberberg, I'm not sure I'm understanding your workflow. Are you trying to iterate through the feature service, and create a buffer using a distance value from a field in the feature service?

Re: Update a Feature Layer from the same Feature Layer

JeffSilberberg — Tue, 02 Sep 2025 15:14:31 GMT

YES, that is exactly what I want to do.

Re: Update a Feature Layer from the same Feature Layer

JakeSkinner — Tue, 02 Sep 2025 15:49:24 GMT

You won't be able to update the point feature service, but you can output the buffers to a new polygon feature service using the Buffer Creator processor. Below is an example of how this is setup. It's getting the buffer distance from a field called distance:

For the Coordinate System, make sure you specify a Projected Coordinate System.

Re: Update a Feature Layer from the same Feature Layer

JeffSilberberg — Tue, 02 Sep 2025 16:00:17 GMT

Thank you,

I was afraid that was the answer. But now I have two Feature Layers, the one built from the source Excel Worksheet and the output of a monthly update run to add the coverage radius circle.

Maybe I ned to make the Worksheet a Feed somehow..

Re: Update a Feature Layer from the same Feature Layer

JakeSkinner — Wed, 03 Sep 2025 00:33:52 GMT

If you can get the spreadsheet in a CSV format, you can use the Watch a Folder for New CSV Files input.

Re: Update a Feature Layer from the same Feature Layer

JeffSilberberg — Wed, 03 Sep 2025 14:01:41 GMT

@JakeSkinner

CSV into a watched folder is the path I started down late yesterday. But did not get as far as I wanted yet.

THANK YOU!

Re: Update a Feature Layer from the same Feature Layer

JeffSilberberg — Wed, 03 Sep 2025 17:39:34 GMT

@JakeSkinner

So I have my Registered Folder Selected for the Input Directory Data Store, and I added a subDirectory CSV Files. Do I want to specify "\CSV Files" or just "CSV Files" in the IInput Directory field?

Update: I just can not get the Feed to read the CSV file. Must be missing something but not sure what -

I used the "\CSV Files", but it does not seem to be pulling in the CSV I just pasted there.

Re: Update a Feature Layer from the same Feature Layer

JakeSkinner — Wed, 03 Sep 2025 17:15:52 GMT

Just "CSV Files".

Re: Update a Feature Layer from the same Feature Layer

JeffSilberberg — Wed, 03 Sep 2025 18:40:07 GMT

No joy -- An the Log is no help at all.

Should I open a Support ticket?

Re: Update a Feature Layer from the same Feature Layer

JakeSkinner — Wed, 03 Sep 2025 18:44:55 GMT

Yes, opening a support ticket would be a good idea.