CODEWITHSUNDEEP
iosmkmapviewzoomingmapkit
Sammio2
Sammio2

Reputation: 7462

MKMapView get zoom level in feet per screen inch

I am trying to figure out the zoom level of an MKMapView in feet per screen inch. Has anyone done anything like this before, or know of any quick categories which would provide this type of behavior?

Upvotes: 1

Views: 338

Answers (2)

Daij-Djan
Daij-Djan

Reputation: 50089

  1. use MKMetersPerMapPointAtLatitude / Longitude to get meters/point
  2. use the view width too see how many points
  3. use device dimension to get points/per inch to get meters/inch
  4. lastly convert that to feet and your good

Upvotes: 1

incanus
incanus

Reputation: 5128

You can also make use of the fact that there are about 110,000 meters per degree latitude (longitude distance varies based on latitude, i.e. varying from equator to poles). You could then figure out the current vertical span and do some math on that.

Upvotes: 0

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