Reverse geocoding
Reverse geocoding is a process of back(reverse) coding of GPS position into readable data format . With reverse geocoding you simply put GPS position, and reverse geocoding returns you a few informations.
What kinds of reverse geocoding APIs can you found?
1) It can be the nearest place - reverese geocoding process simply finds city which is the nearest from your given GPS positions and give it to you. Of course reverse geocoding returns you also GPS position of the city, so you can simply count, how far is the city from your given point.
2) If you have fetched the nearest city given by your GPS position, you probably would like to know, where is the city located. List of all world counties is nice, but for your project it is unusable withous some cool dividing into administrative divisions. This is the second task of reverse geocoding - it can return not only nearest city, but reverse geocoding can return you also, which administrative areas does the GPS coordinate belongs to.
Tixik.com API is one of few world services, that offers both reverse geocoding techniques for free. Try our API and you will see.
