How to determine if lat long coordinates are on a road with Google Maps API v2
android, google-maps-android-api-2
Solution
Final Solution
Use reverse geocoding via the Google Geocoding API.
The term geocoding generally refers to translating a human-readable address into a location on a map. The process of doing the converse, translating a location on the map into a human-readable address, is known as reverse geocoding.
The Geocoding API supports reverse geocoding directly using the latlng parameter. For example, the following query contains the latitude/longitude value for a location in Brooklyn:
http://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452&sensor=true_or_false
The docs explain how to interpret the json results but StackOverflow has various answers addressing more efficient ways to parse the data.
- https://stackoverflow.com/a/8095967/1085891
- https://stackoverflow.com/a/8314094/1085891
- https://stackoverflow.com/a/6335080/1085891
Possible Solutions
Getting the nearest street/road coordinates in android - the answer to this question may point you in the right direction.
You can use directions api directly: http://maps.googleapis.com/maps/api/directions/json?origin=51,19&destination=51,19&sensor=false
Could you use the API to find directions which would then provide the closest road?
- Stick position to road on android maps v2
- GPSLocator - App to Find Current (Nearest) Location using GPS - possibly helpful; not so sure on this one.
- Snap to Roads Android - Exact same question
Quick Search Results
- Snap to nearest street
- Maps API Blog using GDirections.loadFromWaypoints
- Finding nearest street given a lat-long location
- Driving route from my location to destination in Google Maps Android API V2
Unsolved Similar Questions
- Trace the location only on Road in Google maps V2 android
- https://stackoverflow.com/questions/18081417/google-maps-v2-snap-to-road-issue
Problem
I have used Google geo address and using lat/long have got the address. How do I determine if I am on road on not? Basically hit-test for road? I am currently using location manager for lat/long and the GeoAddress is same for on road and next to road.
Related problems
- Parsing address_components in Google Maps upon autocomplete select
- Google Geocoding -- parsing address_components that may return differently
- Finding nearest street given a lat-long location
- Getting the nearest street/road coordinates in android
- Snap to nearest street
- loadFromWaypoints with more than 25 points using Google Maps API v2
- More efficient way to extract address components