typical IBM terminology) showed whatever the computer sent as the body of a
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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这个句式结构，最初源于时尚穿搭博主。某博主在介绍服装时，常说“上身基础，下身就不基础”。后来这种说法被一些网友模仿，“XX基础，XX不基础”就变成了一个百搭句式，比如在评论一个家长不小心把孩子摔了而孩子幸好毫发无损的新闻时，就会开玩笑说：“家长基础，孩子就不基础。”