Disk layout optimization for tile archives| protomaps.com
PMTiles is a single-file archive format for pyramids of tile data, like those used to power interactive maps. It’s designed to make storage and serving of planet-scale tiled maps simple using only affordable S3-like storage and HTTP Range Requests. The physical world depicted in maps is infinitely detailed, but also not random like white noise. By exploiting redundancy in the physical world, we can make specialized formats for GIS more compact and efficient.| protomaps.com
Update: This post describes the internals of the PMTiles v2 format. Check out the post on PMTiles V3 for the latest! Serverless computing supposedly will let developers run sophisticated applications on the web without wrangling virtual machines or databases. New products like Lambda offer simpler deploys for code; emerging standards like WebAssembly let you host SQLite databases on GitHub pages and make queries all from your browser. These examples rely on developers adopting new workflows o...| protomaps.com