idea Chart Clustering Aggregation Option in ArcGIS Pro in ArcGIS Pro Ideas

Chart Clustering Aggregation Option in ArcGIS Pro

RachaelChasse — Wed, 23 Oct 2024 20:05:11 GMT

There is an option to aggregate points using a chart clustering option in the ArcGIS Online Map Viewer. This allows grouping of nearby points into a cluster, symbolized with a chart symbol to categorize the data within each cluster.

It would be great to have this feature in ArcGIS Pro as well. Right now I have to export my point data and publish it to ArcGIS Online just so I can use the Map Viewer to symbolize information in this manner.

Thank you!

Re: Chart Clustering Aggregation Option in ArcGIS Pro

apgis16 — Thu, 11 Dec 2025 18:08:28 GMT

Also looking to try to do this

Re: Chart Clustering Aggregation Option in ArcGIS Pro

SebastianKrings — Wed, 17 Dec 2025 18:27:41 GMT

@RachaelChasse How are you doing that in ArcGIS Online? l try to figure out whether it works for AGE as well.

Having that on ArcGIS Pro would also be great.

Re: Chart Clustering Aggregation Option in ArcGIS Pro

RachaelChasse — Thu, 18 Dec 2025 14:52:28 GMT

@SebastianKrings and @apgis16

I followed the instructions on this page to turn a point layer into a layer symbolized by clustered charts.

https://doc.arcgis.com/en/arcgis-online/create-maps/configure-clustering-mv.htm

Chart clustering won't work for all situations. Make sure the data you want to chart is symbolized by one of the following methods before moving forward, because the chart is generated based on this symbology:

ETA: The data also needs to all be in the same layer using this symbology. If your data is in separate layers, you'll need to consolidate the data into a single layer first.

Re: Chart Clustering Aggregation Option in ArcGIS Pro

apgis16 — Thu, 18 Dec 2025 16:58:35 GMT

Thanks Rachael. You haven't been able to do it in ArcGIS Pro, correct?

Re: Chart Clustering Aggregation Option in ArcGIS Pro

RachaelChasse — Fri, 19 Dec 2025 14:41:21 GMT

@apgis16 I haven't tried testing it in Pro for awhile, TBH. But seeing as this is posted on ArcGIS Pro ideas and there has been no comment from ESRI or changed status to "Implemented" my guess is that it still doesn't have the capability yet.

Right now it's one of those random, odd features that is available only online. ArcGIS Pro is overall a great product that should be more than capable of executing this feature, so it's really mystifying that it is omitted.

Re: Chart Clustering Aggregation Option in ArcGIS Pro

SebastianKrings — Fri, 19 Dec 2025 15:55:40 GMT

Thanks for sharing.
Works for AGE as well.
But does not work with an ArcadeExpression for none of them.

Find my community post about missing expression support here with a pretty quick sample to get PieChart-Clustering based on an ArcGIS Online Layer.

https://community.esri.com/t5/arcgis-enterprise-portal-questions/mapviewer-symbology-clustering-with-pie-charts/td-p/1673771

Re: Chart Clustering Aggregation Option in ArcGIS Pro

Sharita_Underwood — Fri, 09 Jan 2026 16:04:39 GMT

It took me hours but I actually figured out how to do this in ArcGIS Pro

In GIS we're used to data like the following table

City	Category
Atlanta	x
Boston	y
Pittsburgh	z
Los Angeles	x
Salt Lake	x
Denver	y
Atlanta	z
Salt Lake	y
Salt Lake	z

However to make the categorical data I had to reformat my table as the following

City	Category x (1 if occured 0 if not)	Category y (1 if occured 0 if not)	Category z(1 if occured 0 if not)	Sum of categories x, y, and z	category x % (category x/sum of categories)	category y % (category y/sum of categories)	category z % (category z/sum of categories)
Atlanta	1	0	1	2	1/2	0	1/2
Boston	0	1	0	1	0	1/2	1/2
Pittsburgh	0	0	1	1	0	0	1/1
Los Angeles	1	0	0	1	1/1	0	0
Salt Lake	1	1	1	3	1/3	1/3	1/3
Denver	0	1	0	1	0	1/1	0

Now, once you plot your locations in arcgis pro, in my case this was my cities, select your feature layer, under the feature layer tab, select symbology, and choose chart. For type chart choose pie chart and for fields choose each of your category variable % fields (category x %, category y %, category z %).

This will give you a number to use for each of your categories and hence, each category will be a percentage of your pie chart.

I haven't actually figured out a good way to generate the labels clearly and succinctly yet but I'm sure with enough patience someone else could.

Re: Chart Clustering Aggregation Option in ArcGIS Pro

AlfredBaldenweck — Mon, 12 Jan 2026 14:11:49 GMT

Nice work.

You should be able to use attribute connections to get the labels as part of the symbol

var st = text(100*$feature.catXperc)
console(st)
return st + "%"

That being said it doesn't work for me in Pro 3.5 on chart symbology for some reason. Might be worth putting in a support case for it.

Re: Chart Clustering Aggregation Option in ArcGIS Pro

RachaelChasse — Mon, 12 Jan 2026 15:59:04 GMT

@SebastianKrings I haven't come across your specific problem with the chart symbology disappearing when using expressions instead of a field. My off the cuff guess is that the chart symbology is not yet sophisticated enough to deal with the range of possibilities when using expressions, so becomes unavailable for any expression.

@AlfredBaldenweck the labeling tip is interesting. The problem is, so far I haven't seen a way to achieve Chart style clustering as an option in ArcGIS Pro. Are you maybe using this for regular chart symbology, instead of clustered chart symbology?

Re: Chart Clustering Aggregation Option in ArcGIS Pro

AlfredBaldenweck — Mon, 12 Jan 2026 16:21:19 GMT

Ah, sorry. I got caught up in the moment and forgot to check that.

Re: Chart Clustering Aggregation Option in ArcGIS Pro

apgis16 — Mon, 12 Jan 2026 21:13:17 GMT

@Sharita_Underwood I am trying to do the same thing but my data is just a pie chart of crash type along a major roadway. Each record only has 1 crash type and I am trying to cluster by pie chart like I did in AGOL like below. Would your table schema work?

Incident ID (unique)	Crash Type (10 different types)
1	Angle
2	Rear End
3	Head on
4	Angle
5	Hit Pedestrian
6	Rear End
7	Rear to Rear
8	Angle
9	Angle