idea Symbology by query, not just quantity in ArcGIS Pro Ideas

Symbology by query, not just quantity

RobertKlein3 — Wed, 07 Aug 2024 17:23:04 GMT

Currently we can use definition queries to form subsets and save them as layers which can be brought into a TOC and grouped as we please.

The downside of that, besides managing separate layer files, is that the records subset is static for any layer file, and if attributes change the records membership in the layer does not reflect that.

Why not make it possible in the symbology tab, under 'Multiple Attributes' to enter query expressions, such as 'NUM_HOUSEHOLDS' > 'AREA_ACRES' or 'ZONING_DISTRICT' <> 'COMMERCIAL' AND 'ELEV' > 500 ?

Thus we could enjoy the combined benefits of queries, categories and quantities all in one dynamic symbology.

Re: Symbology by query, not just quantity

RichardFairhurst — Sat, 29 Jun 2013 05:19:03 GMT

I support the idea, but rules would have to be developed when a feature in a single layer meets more than one category expression. Would it use the lowest or highest symbol in the list?

Re: Symbology by query, not just quantity

MarkVolz — Fri, 20 Mar 2015 13:34:33 GMT

This would also be useful for symbology based on joined tables. I have two seperate road condition files, one for 2007, and another for 2011. Through label expressions I can create a difference, percent change, and etc. However symbology is limited to normalization to compare one year to the next.