A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.
Just… don’t do it with JavaScript ffs.
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然而几年过去，这场被寄予厚望的集团化战略，仍是日渐式微，曾经收购的国际品牌并未如想象般扛起大旗。更重要的是，被收购的品牌，大多在国际或细分市场拥有不错的口碑与产品力，但进入逸仙电商体系后，几乎都陷入了水土不服、声量下滑、增长乏力的困境。。业内人士推荐heLLoword翻译官方下载作为进阶阅读
The Pentagon Feuding With an AI Company Is a Very Bad Sign