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Израиль нанес удар по Ирану09:28
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.，详情可参考搜狗输入法2026
So, how does OsmAnd use this structure to calculate your route at lightning speed? It's a multi-step process: