Jack Dorsey just halved the size of Block’s employee base — and he says your company is next
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.
，这一点在safew官方版本下载中也有详细论述
Now, OsmAnd performs another Dijkstra search, but this time on the much smaller "base graph." This graph consists only of the border points and the pre-calculated shortcut values between them.
Виктория Кондратьева (Редактор отдела «Мир»)
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