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.
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。业内人士推荐吃瓜网作为进阶阅读
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- Need to downgrade those tests to `warn` severity so they don't cascade-skip downstream models