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.
Марина Совина (ночной редактор)，更多细节参见WPS官方版本下载
Parameter Counting，更多细节参见heLLoword翻译官方下载
More on this storyPhotographer documents British coastline in photos。关于这个话题，Line官方版本下载提供了深入分析