We even tried building hierarchies with 2-3 levels, but the number of shortcuts grew too fast for higher levels if we generated a full graph inside each cluster.
While the route is not currently scheduled to open until after 2033 due to delays, archaeologists say their fieldwork is largely complete.
，详情可参考WPS官方版本下载
The core of OsmAnd's HH-Routing is an elegant two-level hierarchy built upon "area clusters."，推荐阅读heLLoword翻译官方下载获取更多信息
highWaterMark: 100,