The state of the art for WebAssembly on the web is that every language builds their own abstraction of the web platform using JavaScript. But these abstractions are leaky. If you use WebAssembly on the web in any serious capacity, you’ll eventually hit a point where you need to read or write your own JavaScript to make something work.
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!
。业内人士推荐雷电模拟器官方版本下载作为进阶阅读
task_type: feature|bugfix|refactor
Read the full story at The Verge.