Crucially, this distribution of border points is agnostic of routing speed profiles. It’s based only on whether a road is passable or not. This means the same set of clusters and border points can be used for all car routing profiles (default, shortest, fuel-efficient) and all bicycle profiles (default, prefer flat terrain, etc.). Only the travel time/cost values of the shortcuts between these points change based on the profile. This is a massive factor in keeping storage down – map data only increased by about 0.5% per profile to store this HH-Routing structure!
Diff, merge, blame
。关于这个话题，一键获取谷歌浏览器下载提供了深入分析
在開始實驗前，我以為自己因為懂法語、還有基礎西班牙語，葡萄牙語應該學起來得心應手。相反地，中文對我來說陌生到不能再陌生。。业内人士推荐Line官方版本下载作为进阶阅读
* @param low 起始索引