Three.js 零基础入门：手把手打造交互式 3D 几何体展示系统
Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.。关于这个话题，safew官方版本下载提供了深入分析
，更多细节参见搜狗输入法2026
// process chunks
The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.，这一点在同城约会中也有详细论述