How can I get a finer grained span in my MKMapView

Question

I\'m using an MKMapView and I\'m initializing like this:

homeLocation.latitude = 42.033126;
homeLocation.longitude = -70.168621;

[self.mapView setCenterCoordina         


        

Answer 1

Have you tried on the device? Sometimes I have more control on the zoom level on the device than on the simulator.

Answer 2

MKCoordinateSpanMake uses degrees, and 1 degree is about 69 miles. If you want a more fine grained setting, use MKCoordinateRegionMakeWithDistance instead.

CLLocationCoordinate2D homeLocation;
homeLocation.latitude = 42.033126;
homeLocation.longitude = -70.168621;

[self.mapView setCenterCoordinate:homeLocation animated:NO];

 MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance( homeLocation, 200000, 200000);
// 200000 meter is approximately 1.8 degree
[self.mapView setRegion:[self.mapView regionThatFits:viewRegion] animated:NO];