Tiny Footprint: Our HH-Routing data adds only 0.5% to 1% to OsmAnd's already incredibly compact map sizes. The entire planet's car routing data is around 800MB!
All formulas used in this test can be found here.
，更多细节参见旺商聊官方下载
Now that we can build the tree, let's use it to search. Finding a specific point means starting at the root and asking: which child quadrant contains this coordinate? Then you recurse into that child and ask again. Each level of the tree cuts the search space by roughly three-quarters.
Identify who spoke when — detects up to 4 speakers with per-frame activity probabilities:
Yogita LimayeSouth Asia and Afghanistan correspondent