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.
▲体验地址：https://aistudio.google.com/apps/bundled/global_kit_generator
，详情可参考旺商聊官方下载
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