Reverse Geocoding

Reverse geocoding is the process of identifying the nearest road segment in a map database given a latitude and longitude pair. This latitude and longitude data would typically be generated by the mobile device's positioning system. Once the nearest road segment is available it is possible to process driving or walking direction requests or POI lookups.

The operation is specific to a given map database, and different map databases of the same area could yield different results. The operation usually searches for road segments within a specified range, which might or might not be configurable by the user. You must be cautious with the search range, as a range that is too small can return errors if the user is trying to use an ...

Get Mobile Location Services: The Definitive Guide now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.