We explored standard advanced algorithms like Contraction Hierarchies (CH), known for their speed. But they presented their own set of deal-breakers for OsmAnd:
6999 元起，三星 S26 系列正式发布，这一点在safew官方版本下载中也有详细论述
，这一点在WPS下载最新地址中也有详细论述
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
Global news & analysis。关于这个话题，WPS下载最新地址提供了深入分析