PMTiles

FWIW, I have an experimental open-source implementation of offline-capable PWA protomaps. Haven't advertised it much, because I haven't sorted out performance (particularly on mobile), and it's a bit buggy still. Also, don't have cache invalidation. But it does work. Usually. xD app: https://maps.bpev.me source: https://tangled.org/bpev.me/maps Based on results from indexeddb pmtiles work: https://github.com/jtbaker/pmtiles-offline https://github.com/protomaps/PMTiles/issues/395

Optimizing some of that geojson into realtime tiles is a really fun and engaging project. Have you seen these projects? https://github.com/protomaps/PMTiles https://github.com/maplibre/martin

PMtiles is often used with MVT tiles, but it can encapsulate a variety of tile types: the current spec [1] has defined tile types for MVT, PNG, JPEG, WebP and AVIF (plus "Unknown/Other"). [1]: https://github.com/protomaps/PMTiles/blob/main/spec/v3/spec....

PMTiles is actually pretty agnostic to what kind of tiles it contains! There is already a PMTiles PR that updates the byte that specifies the type of tile to include MLT. https://github.com/protomaps/PMTiles/pull/596

While useful, this still uses a server to process tile requests. Why not https://github.com/protomaps/PMTiles ? For the record, I am currently using maptiler over at https://citybik.es to serve tiles, and I am evaluating moving to serving static pmtiles on range requests to cut the middle man

Yep, it's a format they designed (ProtoMaps Tiles): https://github.com/protomaps/PMTiles

I am a novice at GIS and mapping but when I got started I thought a map/tile server was the only way to build mapping webapps. But, in my admittedly simple application PMTiles can cover a lot of my visualization use cases with a thin Django app doing GEOJson for interactive layers. https://github.com/protomaps/PMTiles

This is awesome. Such a great use case for nix. I do a lot of geospatial processing in the cloud and I've been using Tippecanoe a lot to create vector tiles. It pairs well with PM Tiles for storing on the cloud. It seriously increases the web app performance for massive data sets. I queue these up with ECS tasks to process our json/csv/parquet input and create optimize vector tile outputs. https://github.com/felt/tippecanoe https://github.com/protomaps/PMTiles Tippecanoe would be a great addition to your nix packages. I've been thinking more and more about how Nix could fit into this pipeline. Great work!

There isn't a tool to do that right now. It could be a fit in either https://github.com/protomaps/go-pmtiles or https://github.com/protomaps/PMTiles/tree/main/python - the Go program is faster and more production ready at this point. I imagine if folders are working for you the quantity of tiles doesn't number into the millions, so the Python program might be sufficient. Feel free to open an issue.

i think you can also directly call them from the maplibre lib itself using the pmtiles adapter https://github.com/protomaps/PMTiles https://github.com/protomaps/PMTiles/blob/main/js/examples/m...

For the next revision of the JS decoder I'm including `fflate` as a dependency so clients can decompress gzipped tile data using JavaScript. https://github.com/protomaps/PMTiles/blob/master/js/package....

An exciting new standard here is pmtiles; a standardized way to store map tiles that can be used via http range requests. I believe planettiler has plans to add pmtiles output support as well. https://github.com/protomaps/PMTiles

This is pretty cool! Didn't know you can query SQLite databases from s3. I recently tried out PMTiles[1] to do something similar but it requires an extra processing step. Would anybody know the pros and cons of this vs PMTtiles? [1] https://github.com/protomaps/PMTiles