For context, I'm a cartographer so I make a lot of maps with GIS software (ArcGIS Pro 2.5 in this case). Often for design purposes, once the analysis is done, I export my maps to Illustrator for design work. I'm using Illustrator CC 2020.
The question I have pertains to 2 different layers on a map. I have a statewide map that shows a pattern by county, so there are county boundaries for the whole state. I then have 4 larger regions, so each county falls into 1 of these 4 regions. The county info is grouped into its own layer, and the 4 regions are grouped into their own layer. I would like to know if there's a quick way to select all the counties that fall inside 1 particular region. The outcome would be only those counties that fall in 1 particular region get selected, so I can further group them. Currently I'm doing this manually in the layers panel.
This becomes problematic when I start getting to much smaller geographies (such as census tracts or block groups) where the number of vectors in 1 layer can be in the order of thousands, so a quick way to select of subset of vectors is key.
To be clear, I already did the county selections manually, but I'm now working with very small census tracts (my state has > 1,000). Each little tract is a vector within the tract layer, with no outline and a fill with 1 of 4 possible colors, since this is a dasymetric map.
I know these selections can be done in GIS, but the problem is that the groupings I did in there came undone once I exported to AI and PDF, so I'm wondering if anyone has a workaround to do this in AI instead. Or possibly a better way to export to AI from ArcGIS Pro to ensure my map layers group as they were in GIS. Thanks.
Here are some pics to help illustrate: 1)The part of the map in question 2) the corresponding layers panel, the dark teal areas have over 1,000 vectors in that layer