获取整条路线、谷歌地图或 OpenStreetMap 的准确地理坐标 [英] Get exact geo coordinates along an entire route, Google Maps or OpenStreetMap

问题描述

假设我有一条从一个城镇到另一个城镇的路线.从 Google Maps API 我可以恢复两者之间的路线.但是，从 Google 返回的路线是一条包含地理坐标的驾驶路线，仅在一条腿还有另一步的地方(例如，我必须从一条高速公路转向另一条高速公路).

Suppose I have a route defined from one town to another. From the Google Maps API I can recover a route between the two. However, the route returned from Google is a driving route that includes geo-coordinates only at places where there is another step in a leg (for example, where I have to turn from one highway to another).

我需要的是整个路线上的地理位置(纬度/经度)，以特定的间隔(例如，每 1/4 英里或 100m).

What I need is geo-locations (lat/long) along the entire route, at specific intervals (for example, every 1/4 mile or 100m).

有没有办法通过 Google Maps API/网络服务来实现这一点?

Is there a way to accomplish this via the Google Maps API / web services?

或者 OpenStreetMap 数据库会是这样做的方式吗?

Or would the OpenStreetMap database be the way to do it?

亲切的问候，玛德琳.

推荐答案

OSRM 为您提供具有道路几何形状的路线，就像它们在 OpenStreetMap 数据库中一样.例如，您可以将路由作为 GPX 获取(如果需要，可以对该文件进行后处理).如下所示:

OSRM gives you routes with road geometries as they are in the OpenStreetMap database. For example, you can get the route as GPX (and post-process this file if you want). This would look like the following:

GET http://router.project-osrm.org/viaroute?hl=en&loc=47.064970,15.458470&loc=47.071100,15.476760&output=gpx

阅读更多:OSRM API 文档.

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