'Counts & Amounts (size)' Style option in New Map Viewer - missing classify # of Natural Breaks like Classic Map Viewer

TraceyFinnegan-Wiese · ‎02-27-2025

Hello! Trying to transition from the Classic Map Viewer to the new Map viewer and am running into some functionality differences/missing features and hoping somebody can steer me in the correct direction.

In the old Classic Map Viewer if I wanted to classify data by a count field where the larger the circle (or symbol) on the map, the greater the data value. In Classic Map Viewer I would select the 'Counts & Amounts (size)' style and then have the option to Classify Data using 'Natural Breaks' with x classes (based on the number of classes, in my case usually 5 to 7). When I use this same style in the new map viewer and try to find this option of classifying data with natural breaks, I am unable to find it therefore cannot specify the number of breaks or classes that I want. Additionally, in the Classic Map Viewer I could click on each individual class (e.g. symbol/circle) and change the data label (say from 1-1 to 1, or 1-2 to 2) AND change the color. I don't see this option in the new map viewer to change the color or legend label of each count class. Is this possible in the new map viewer and if so, how do I do it. Thanks!

RussRoberts · ‎02-27-2025

Hey Tracey,

In Map Viewer you can use classify under the Counts & Amounts (size) style. Its located between the Size range slider and Transparency by attribute sections of the panel. From there you can set the number of classes, labels for the set classes and pick/configure your symbols for the classes. LMK if you have any further questions or if you want me to check out your map.

TraceyFinnegan-Wiese · ‎02-27-2025

Thank you sooo much! I clearly missed that option when scrolling through the options. This clears up my questions - very much appreciate the efficient and accurate response!

RossToft1

Hey there! I'm having a similar issue with not being able to find the classify option in order to add custom breaks. I'm using the Counts & Amounts (size) style in the new map viewer, but do not have the 'Classify data' toggle. What do I have wrong?

RussRoberts

If you can share the map I can take a look at why it isnt showing up.

RossToft1

Sure thing, the map in question is here: https://cityofthornton.maps.arcgis.com/apps/mapviewer/index.html?webmap=052bbf9856814404aa845abe25ef...

RussRoberts

Yup this is due to using using Types and Size. In the web map the size is stored as a visual variable in the renderer and the style is type: unique value and then you have unique value groups & classes. When its just the size the style is stored as a type: classed size and we can store the class break info there.

I played around with using binning on the layer + just the size style with some simple classes. But looks like points will always overlap so it might not be the best case and you would want it always clustered?

https://jsapi.maps.arcgis.com/apps/mapviewer/index.html?webmap=a7a111e2bb2948e5bda7cc27ac961eb7

RossToft1

That makes a lot of sense! Many of the points share the same X/Y value, so that's unfortunately another challenge. I'll try playing around with binning and see if I can make that work. Thanks so much for your help!

LaurenReilly

Hi, I am having a similar issue, although my map viewer does not show the "classify data" option. Perhaps because I have my symbology set to Unique symbols (types) AND counts and amounts (size) ?

RussRoberts

That is correct we don't expose the classify option when using the size style along with other styles like Types and Size