iPhone dev - showing two locations on the map
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by Brian
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Published on 2010-05-06T19:33:11Z
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2010/05/06
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Now I have the coordinate of two locations, let say locationA with latitude 40 and longitude -80, locationB with latitude 30 and longitude -70,
I want to create a mapView that I can see both locations with appropriate viewing distance.
I got the new coordinate by finding the midpoint (in this example, {35, -75}), but the question is,
How can I get an appropriate viewing distance? In particular, how can I calculate CLLocationDistance (if I'm using MKCoordinateRegionMakeWithDistance) or MKCoordinateSpan (if I'm using MKCoordinateSpanMake).
Thanks in advance.
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