Daniel Larlham Jr.
'LatheGeometry': () = {
。91视频对此有专业解读
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.
如果你在中國入住酒店房間，可能你的一舉一動正被其他人所凝視。有犯罪分子在全國各地的酒店裡安裝攝像頭，秘密拍攝甚至直播毫不知情的客人性愛過程。