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Kudos on writing a solid comprehensive article on mapping, the tooling available, and how to do it step by step. (GDAL and everything!) Not an easy task, and I
by sailfast 8y ago
Kudos on writing a solid comprehensive article on mapping, the tooling available, and how to do it step by step. (GDAL and everything!) Not an easy task, and I found the format engaging. Great stuff.
It looks like the city of Chicago might be sitting on top of the Socrata API, which allows you to run a distinct - if you are visualizing counts for each tract (or averages and other types of calculations) it would save you the Digital Ocean resources to grab the API counts either on-the-fly or as static files for the tracts in Chicago and render them that way via Leaflet, but obviously this does not allow for quite as novel an analysis as PostGIS offers! (here's the API page that the City of Chicago links to from their page https://dev.socrata.com/docs/functions/#2.1, https://dev.socrata.com/docs/functions/#2.1,)
- samblogs 8y agoThanks for your feedback! I have 0 experience with mapping so it was fun to see all the tools out there. There's much more out there than I expected. I did notice they had the API, but figured I would learn something a little more universally applicable by learning PostGIS. I should try that out though for a more lightweight and cheaper option next time
- sailfast 8y agoAbsolutely and that's critical knowledge - PostGIS is super powerful and the experience with GDAL is definitely good to have (and to understand the transformations that are possible) One of my favorite primers is by Robert Simmon who I had the pleasure of seeing at OpenVis: https://youtu.be/N_dmiQI1s24 https://youtu.be/N_dmiQI1s24 RE mapping tools - I've been working a lot lately with Vector Tiles and their embedded props and from a web-mapping perspective it's nice to download the geometry once and then style many times in terms of over-the-wire efficiency. Happy hunting and thanks for your post.