Follow topics & set alerts with myFT
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.
2025年9月，抖音曾对长文功能进行小范围内测，支持至少300字、上限4000字的优质图文创作活动。该功能正式上线后，字数被进一步拓宽至8000字。在首页中，这些长文以配图+文字滚动的形式出现，并伴随轻音乐的播放。用户点击文字下方的“阅读原文”，即可进入完整内容页面。。旺商聊官方下载对此有专业解读
Equal: Every domino half in this space must be the same number of pips.，推荐阅读同城约会获取更多信息
What hardware do you use?
▲图片来源：https://x.com/Prathkum/status/2027069198091071664/photo/2。业内人士推荐搜狗输入法下载作为进阶阅读