Today I Learned
Today I Learned
Below are posts on various topics covering programming tips in R and Python, GIS tools and techniques and maps and data visualizations.
| Date | Title | Short Description | Tags |
|---|---|---|---|
| Jul 12, 2026 | A Geo-Agent Without the AI: Natural-Language Spatial Proximity Queries in Python — No Keys, No LLM | The theme of a typical “geoAI” agent has the same skeleton: take a plain-English question, figure out what it’s asking, resolve the place names, run a spatial query, compose… | python, geospatial, geoai, openstreetmap, osm |
| Jul 3, 2026 | Geolibre and Lake Watersheds from Geoparquet on S3 | Everything runs in memory or via HTTP range requests — no files are downloaded or saved.The full stack is: | python, geospatial, geolibre, geoparquet |
| Dec 19, 2025 | Geoparquet in R | Accessing an example geoparquet file in an S3 bucket and pulling data in only within a bounding box and for certain criteria | geoparquet, R, arrow |
| Nov 2, 2025 | Strava Heatmap | Creating a Strava Heatmap with dowloaded activity files using ggpmap in R | mapping, R, Strava, heatmap, ggmap |
| Apr 17, 2024 | Web Services in R | Web services, STAC, and COG for accessing spatial data in R | webservice, R, API, geoconnex, arcgislayers, STAC, COGs, ESRI REST |
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