Question

How do I make a image, make it georeferenced and make it such that using the GPS, a blue dot appears where I am standing (assuming the image is there) in my iOS application. How do I approach this to georeference my image and accomplish this?

Answer 1

The steps I would take are as follows :

1. Get the user’s location using a location manager
2. Capture the image
3. Instead of saving it to the disk, copy the image to a new file named something like “imageprefix_(user location’s latitude value)_(user location’s longitude value).png”
4. Put an MKMapView in your UIViewController and set
   [viewController.mapView showsUserLocation:YES]
5. Show the image below, or above. In the future, if you’re not at that location, use the latitude and longitude values from the title of the image to drop an annotation on your mapView

Good luck!