MKMapView Zoom and Region

Question

I\'m familiar with using Google Maps Javascript API. Recently I started using MapKit framework for an iphone project, but I\'m having a hard time to figure out zooming and s

Answer 1

A quick comparison of zoom levels for a location using maps.google.com by inspecting the link querystring shows that the dx and dy span values increase by a factor of 2:

 (0.005334, 0.011834) starting span
 (0.010668, 0.023668) dx: x2, dy: x2 
 (0.021335, 0.047337) dx: x2, dy: x2
 (0.042671, 0.094671) dx: x2, dy: x2
  ...