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.
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This combination – localized Dijkstra, super-fast abstract graph traversal, and highly localized A* refinement – is what delivers the 100x speedup.。关于这个话题，Line官方版本下载提供了深入分析
Steven Vaughan-Nichols, Senior Contributing EditorSenior Contributing Editor，推荐阅读im钱包官方下载获取更多信息
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