When it comes to software engineering, I’d like to think of myself as a generalist. Still, over my 12-year career, a major focus has been building scalable backends. I’ve worked at Amazon and Twitch to build out large-scale systems that support millions of users.
Quadtrees are everywhere spatial data exists. Mapping services use quadtree-like tile pyramids to serve map tiles at different zoom levels (Bing's quadkey system, for example, addresses tiles as base-4 paths). Game engines use them for collision detection and visibility culling. Geographic information systems use spatial indexes to store and query spatial datasets. PostGIS uses GiST indexes (R-tree-style) for spatial queries on geometries, while PostgreSQL's core supports quadtree-like SP-GiST indexes for certain data types like points.
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“中国一強”「レアアース」 日本の戦略に密着取材
Врач назвала четыре категории продуктов для здоровья сердцаКардиолог Соловьева посоветовала чаще есть зелень и овощи для здоровья сердца