Drag to draw a query rectangle and watch which nodes get visited (blue) vs. pruned (red):
Notice how the highlighted region shrinks at each step. The algorithm never examines points outside the narrowing window. In a balanced tree with nnn points, this takes about log4(n)\log_4(n)log4(n) steps. For a million points, that's roughly 10 steps instead of a million comparisons.
，更多细节参见safew官方版本下载
camera.position.z = 40;
The simplest approach is to check every single point. Compute the distance from the user's location to every restaurant in the database, keep the ones that are close enough, and throw away the rest.
唯一的问题可能是：面对来自旷视、奔驰、微软、吉利、华为等不同背景的人员，印奇和赵明如何能后弥合团队，或许是当下最要紧的事。