topic Re: How to dynamically summarize points within a boundary? in ArcGIS Online Questions

How to dynamically summarize points within a boundary?

DavidSemitekol3 — Wed, 04 Oct 2017 18:56:36 GMT

Hello Community!

The newest version of AGOL has some fantastic features and seems to get better with every update.

I have been using the dashboard web app and the info graphics to really showcase some insights along with visually compelling data. My end users have been thrilled at the results.

However, I was wondering if there was a way to dynamically update either these info graphics or to dynamically summarize points in a boundary file.

Here is my situation:

I have a web map built with our facility locations and have also imported NOAA's current hurricane resource which shows active hurricanes with several layers, including a cone of uncertainty. This layer is a boundary layer and is updated consistently by NOAA which is then rolled out to all users such as myself which updates on my web app. Who doesn't love an automatic updating of web maps?

I can summarize all of my facility locations using the cone of uncertainty layer since it is just a polygon layer, however, I would like to dynamically summarize my point facility locations as the cone of uncertainty layer is updated so that when my end users log into the web map they can easily see a "live updated" number of potentially impacted facilities.

Does anyone think this is possible or am I pushing the envelope and needing to wait for another AGOL update?

Thanks!

Re: How to dynamically summarize points within a boundary?

DrewMerrill1 — Mon, 25 Jun 2018 14:29:37 GMT

Hey David,

I was just wondering if you had any luck with dynamically summarizing points within a boundary? I am looking for similar functionality.

Thanks

Re: How to dynamically summarize points within a boundary?

AJ_devaccount — Thu, 10 Nov 2022 18:17:47 GMT

Hi @DavidSemitekol3 , did you end up finding a solution for this please?

Re: How to dynamically summarize points within a boundary?

StephanieWeber1 — Thu, 17 Jul 2025 21:03:25 GMT

Hello! I know this topic is really old, but I wanted to share a workaround I found for something similar. During the CA fires earlier this year, the perimeters and evacuation zones were constantly changing. I was able to write a small python script that accessed the fire and evacuation service layers, subset my data to just those within the different polygons and then feed them back into my organization's service layers to be used in a dashboard. I was able to schedule this script to run hourly on my PC to keep everything updated. So while it was not 'dynamic' within the AGOL dashboard, itself, it was able to keep the dashboard current.