问题
I'm writing an app that closely tracks a user's driving speed. I'm currently using the HERE API getlinkinfo to get the speed limit of a road at a particular point using lat/long.
https://route.st.nlp.nokia.com/routing/7.2/getlinkinfo.json?app_id=APPID&app_code=APPCODE&waypoint=37.421045,-122.092380
When the user is in an intersection or is on/under an overpass the lat/long doesn't specify which road the user is currently on so I don't always get the correct speed limit returned. I believe tiles of data can be read with the Platform Data Extension API but I'm using a plan with only the Standard Feature set so that API is not available. Is there a way to get all of the speed limits of roads within a certain radius of a point or within a 2 dimensional square using the Standard Feature set?
回答1:
getlinkinfo will depreciated March 31, 2017. In order to get speed limit information you will have to use PDE (Platform Data Extension) which requires an APP ID and Code. If you are working in PHP you can use the link below to help get you started.
Here PDE Speed Limit Demo
来源：https://stackoverflow.com/questions/41656152/here-maps-api-get-speed-limit-of-all-roads-in-a-tile