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Ian Dees

The tiles are pretty big (tiles in Manhattan are 2-15MB), but they compress well (900KB-5MB). The output pmtiles file is 530GB. I built the profile here if you're interested in how it works: github.com/onthegomap/planetil

3 comments
Ian Dees

One interesting thing that's hard to see with Matt's tool is that the tiles all have information about any large polygons they sit in. For example, you could use this to build a reverse geocoder by mapping the point you're looking for to a tile, fetching the tile, and looking at what polygons your point sits in. Neat!

Ian Dees

Another thing I'm thinking about: what if we pass the filtering logic to @bdon@mastodon.sociall's pmtiles Cloudflare Worker code and have it do server-side filtering so the tiles aren't as big on the wire. 🤔

Drew Breunig

@ian This is an awesome idea. Like graphql for tiles.

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