title: How to set a initial zoom level for a map?
body: <p>I am building an iOS app using Rubymotion.
  In this app I got a mapview. I can display this fine but I want to set an initial zoom level to the annotation area instead of a fully zoomed out view. How can I do this?</p>
  
  <p>This is my code:</p>
  
  <pre><code>map = MKMapView.alloc.initWithFrame(CGRectMake(10, 10, (hash[:width]-20), (hash[:height]-20)))
      map.mapType = MKMapTypeStandard
      map.delegate = self
      map.showsUserLocation = true
      map.setCenterCoordinate(location, animated:true)
      map.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight
  </code></pre>