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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Ubisoft told VGC, which first reported on Hocking's exit, that development on Hexe will continue. Jean Guedson, one of three new leaders of the Assassin's Creed franchise, will take over as the upcoming title's new creative director. Guedson had the same role for Assassin's Creed Origins and Black Flag, two of the franchise's most well-received entries.，详情可参考heLLoword翻译官方下载
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