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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。关于这个话题，旺商聊官方下载提供了深入分析
DigitalPrintPrint + Digital
Opens in a new window，这一点在搜狗输入法2026中也有详细论述