代码中定义了一个 primitives 对象，里面藏着 20 多种不同的几何体生成函数。让我们挑几个常用模型进行分析：
The algorithm maintains a running "best distance" that starts at infinity. As it walks the tree, it checks each visited point and updates the best distance if it finds something closer. Before recursing into a child node, it checks whether the closest possible point in that child's bounding box is farther than the current best. If so, the entire subtree gets pruned.
，推荐阅读同城约会获取更多信息
Овечкин продлил безголевую серию в составе Вашингтона09:40
Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00517-9
Global news & analysis