topic Re: Finding points within polygon in ArcGIS Online Questions

Finding points within polygon

AdenBetman — Thu, 28 Mar 2024 13:23:15 GMT

Good Morning, I am creating a dashboard that is linked to this map here. Ultimately the dashboard is working off the one-point layer that I update daily every morning. I have a buffer in miles that ranges from .5, 1, and 1.5 from the center of the purple polygon layer. My boss is wondering if there is a way to find how many points fall within just that purple boundary as well as the points that fall into each buffer. I explained that while this can be done the fact that I am doing this daily running the summaries within/select by location analysis will create a new layer and it will project wrong information within the dashboard widgets. I know that on the dashboard you can draw a circle to encompass an area and do it that way but there is no way to select that polygon (purple layer). Does anyone know away to do this?

Thank you!

Re: Finding points within polygon

ChristopherCounsell — Fri, 29 Mar 2024 02:08:12 GMT

In Dashboards the simplest way to do this will be to:

Add an indicator with the point feature service as input and return count
Add an action filter to the polygon to filter the points based on the selected polygon

You can also do something using Arcade to return a feature set in the pop-up or a widget e.g.

https://github.com/Esri/arcade-expressions/blob/master/dashboard_data/SpatialAggregation.md

(thanks to @jcarlson )

https://developers.arcgis.com/javascript/latest/sample-code/popuptemplate-arcade-groupby/

Re: Finding points within polygon

AdenBetman — Fri, 29 Mar 2024 16:11:35 GMT

Christopher,

Thanks for the reply. I believe I understand your answer but could you point me towards any tutorials that describe the first two options?

Re: Finding points within polygon

ChristopherCounsell — Mon, 01 Apr 2024 11:54:50 GMT

You need:

Element supporting actions
Map
Indicator or other widget

https://support.esri.com/en-us/knowledge-base/how-to-apply-spatial-filters-on-the-table-element-in-ar-000026989

The above has a related guide using table. You could use the polygon table as your input. Suggest playing around once you've got your data in there and looking for the Action > Filter (spatial).

Re: Finding points within polygon

MdShahNaimHredoy — Tue, 21 Jan 2025 20:43:31 GMT

Hi Aden,

Did you find a way to do this?

Thanks

Naim