Ryan Cooper
@maptastik.bsky.social
I do data, map, and programming things to help my local school district better ask and answer “Where?” questions.
Reposted by Ryan Cooper
We just published a deep dive on spatial joins in DuckDB by @maxxen.bsky.social.
In this blog post, Max explains how spatial joins evolved in DuckDB and how the current operator harnesses R-Trees.
Read the full post at duckdb.org/2025/08/08/s...
In this blog post, Max explains how spatial joins evolved in DuckDB and how the current operator harnesses R-Trees.
Read the full post at duckdb.org/2025/08/08/s...
August 8, 2025 at 3:24 PM
We just published a deep dive on spatial joins in DuckDB by @maxxen.bsky.social.
In this blog post, Max explains how spatial joins evolved in DuckDB and how the current operator harnesses R-Trees.
Read the full post at duckdb.org/2025/08/08/s...
In this blog post, Max explains how spatial joins evolved in DuckDB and how the current operator harnesses R-Trees.
Read the full post at duckdb.org/2025/08/08/s...
Reposted by Ryan Cooper
GeoFeeds Is Online
I've missed Planet Geospatial. I've missed it so much that I messaged James the other day and said we should get it going again. He wholeheartedly agreed and then started going on about perfectly valid stuff like not wanting to wrestle with 15-year-old Python 2.x code and such.…
I've missed Planet Geospatial. I've missed it so much that I messaged James the other day and said we should get it going again. He wholeheartedly agreed and then started going on about perfectly valid stuff like not wanting to wrestle with 15-year-old Python 2.x code and such.…
GeoFeeds Is Online
I've missed Planet Geospatial. I've missed it so much that I messaged James the other day and said we should get it going again. He wholeheartedly agreed and then started going on about perfectly valid stuff like not wanting to wrestle with 15-year-old Python 2.x code and such. So I built something in Node. Blogs (and I'll lump Substack into that category) are where the good stuff happens, but they are so scattered in 2025.
blog.geomusings.com
February 13, 2025 at 10:45 PM
GeoFeeds Is Online
I've missed Planet Geospatial. I've missed it so much that I messaged James the other day and said we should get it going again. He wholeheartedly agreed and then started going on about perfectly valid stuff like not wanting to wrestle with 15-year-old Python 2.x code and such.…
I've missed Planet Geospatial. I've missed it so much that I messaged James the other day and said we should get it going again. He wholeheartedly agreed and then started going on about perfectly valid stuff like not wanting to wrestle with 15-year-old Python 2.x code and such.…
Reposted by Ryan Cooper
This is pretty awesome. From this post about using QGIS' atlas function on attributes rather than a spatial index, I figured out how to apply it to a rule-based visualization. Make your "field" rules, then put the eval statement in the rule-based viz dialog.
www.statsmapsnpix.com/2019/01/qgis...
www.statsmapsnpix.com/2019/01/qgis...
QGIS Atlas by Field
This post explains how to use the Atlas function in QGIS to automate the production of maps from a single layer in order to produce a map o...
www.statsmapsnpix.com
February 12, 2025 at 12:04 AM
This is pretty awesome. From this post about using QGIS' atlas function on attributes rather than a spatial index, I figured out how to apply it to a rule-based visualization. Make your "field" rules, then put the eval statement in the rule-based viz dialog.
www.statsmapsnpix.com/2019/01/qgis...
www.statsmapsnpix.com/2019/01/qgis...
Reposted by Ryan Cooper
Hello #GISChat. I'm giving a presentation to the Illinois Surveyor community in Feb. My intention is to show how many disciplines that GIS covers outside Parcels & Lot Lines. It would be great if you could take this short questionnaire and pass it along to your own GIS network. arcg.is/1fDb0K
December 30, 2024 at 9:33 PM
Hello #GISChat. I'm giving a presentation to the Illinois Surveyor community in Feb. My intention is to show how many disciplines that GIS covers outside Parcels & Lot Lines. It would be great if you could take this short questionnaire and pass it along to your own GIS network. arcg.is/1fDb0K