Mapbox Standard 新增车道标线，提升地图细节
几年前，我开始使用 Apple Maps 进行日常导航，一个重要原因是它的地图看起来更美观。Apple Maps 会显示道路标线——车道、箭头、停止线——这样在到达复杂路口前，我就能看清该走哪条车道。这是一个微小的细节，我关注它可能只是因为我喜欢看漂亮的地图，大多数人并不在意。我知道我妻子就不在意。 无论如何，Mapbox 现在也显示道路标线了，同时还对道路的绘制方式进行了其他几项改进。 Mapbox 的 Taya Lavrinenko 表示：“Mapbox Standard 现在将更详细的路面、道路结构和标线直接带入使用 Mapbox Maps SDK 构建的应用程序中。在高缩放级别下，Standard 会渲染车道边界、转向箭头、人行横道和停止线。” 这些额外的细节默认是关闭的，因此如果你使用 SDK，需要通过设置 showHdRoads 标志来启用；如果使用 Mapbox Studio，则需要打开“车道细节”选项。 目前，该功能的覆盖范围仅限于“29 个国家的 71 个主要城市”。不过，Mapbox 并未公布具体是哪些城市。而且看起来每个城市似乎都是完全覆盖的。例如，伦敦市中心到处都有道路标线，但肯蒂什镇——仍然相当中心，绝非郊区——只有部分覆盖，道路标线在肯蒂什镇路的中途就停止了。 这是一项复杂的工作，你无法直接从 OpenStreetMap 获取这种级别的细节。但目前的覆盖情况看起来有些乏善可陈，只完成了一半。要么只推出完全覆盖的城市，要么就别推出。 要了解完整的技术细节，请点击阅读原文。
编译自 Lat Long Blog，原文链接
原文摘要
Lane Markings Come to Mapbox Standard
Link: www.mapbox.com A major reason I started using Apple Maps for day-to-day navigation a couple of years ago was that its maps just look better. They show road markings—lanes, arrows, stop lines—so I can see which lane I need before I reach a complex intersection. It’s a tiny detail, and I probably only care because I like to look at pretty maps. Most people don’t. I know my wife doesn’t. Anyway, Mapbox now shows the road markings too, along with several other improvements to how roads are drawn. Taya Lavrinenko, Mapbox: Mapbox Standard now brings more detailed road surfaces, road structures, and markings directly into applications built with Mapbox Maps SDKs. At high zoom, Standard renders lane boundaries, turn arrows, pedestrian crossings and stop lines. The additional details are off by default, so you have to enable them by setting the showHdRoads flag if you’re using the SDK or by turning on Lane Details in Mapbox Studio. Coverage is currently limited to “71 major cities in 29 countries.” Mapbox hasn’t published which ones, though. And it looks like every city appears to be fully covered. For example, the centre of London has road markings throughout, but Kentish Town—still fairly central and by no means a suburb—is only partly covered, with the road markings stopping half-way along Kentish Town Road. It’s complex work and you can’t just pull this level of detail from OpenStreetMap. But this looks lacklustre; a job half done. Either only roll out cities where there’s complete coverage or don’t.