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.
Author(s): Pedro P.P.O. Borges, Robert O. Ritchie, Mark Asta
。业内人士推荐搜狗输入法下载作为进阶阅读
有没有想过,一张你亲手设计的「画」,可以被放在无数人的客厅、书房、卧室,伴随着音乐每天被看见、被触摸、被爱不释手?
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