If you have projects that still use OpenStreetMap map tiles with the deprecated URL schema i.e., {a,b,c}.tiles.openstreetmap.org, do upgrade to the newer schema.
tile.openstreetmap.org supports HTTP/2 and HTTP/3 which no longer require the old (a|b|c) aliases to increase browser connection concurrency. Using a single URL improves performance and ability to cache.
It will make your app faster and lowers the burden on maintainers.
Forty-eight recordings of talks from this year’s State of the Map France are available on Peertube. Unfortunately, I can barely order a beer in French, so I won’t be able to recommend any talks.
If you’re working with STAC or want to learn about it, consider following the STAC Google Group for regular news and invitations to join community meetings.
The technical how-to describes how you can use AWS Athena to query OpenStreetMap data from Parquet files on S3. Athena is an analysis layer sitting on top of data source to simplify data access for application such as machine-learning tools or data dashboards. Using analysis-ready OSM data removes storage- and computation-heavy steps to obtain and convert the data into the desired format from the processing pipeline. The example use data from the Daylight Map, which is available from AWS’ Open Data Registry.
Where can you get within 40 minutes from every subway station in New York? Chris Whong’s fun, interactive map shows you, using GTFS data from New York’s Metropolitan Transportation Authority and Turf.js to calculate the isochrones.
This has been lurking in my feed reader for a while, but it’s still worth sharing: Google offers a new set of Web Components to compose and add basic maps applications to websites, removing the need to write extensive JavaScript.
The basic example shows how to add a map with a marker to a website:
<gmp-map
style="height: 500px;"
center="41.081736,29.009206"
zoom="10"
map-id="DEMO_MAP_ID"
>
<gmp-advanced-marker
position="41.081736,29.009206"
title="Istanbul"
></gmp-advanced-marker>
</gmp-map>
More interactive maps can be built with auxiliary components for buttons, layout and overlays.
This is a positive development: Web Components allow developers to add basic map functionality to websites without resorting to additional frameworks with potentially heavy footprints. I’d like to see more proposals like this.
Open-source alternatives are available (for OpenLayers) or have not seen significant development in recent years (for Leaflet).