Calculate compass heading to a CLLocation - Haversine functions for iOS

Question

I understand how to get the distance between 2 CLLocations. I need to determine the generalized compass bearing (N, NE, E etc.) from a CLLocation to another CLLocation.

Before I implement something to derive the bearing with the haversine formula is there a generally adapted open source library or code fragment that you've found solves this problem with or without using haversine?

Thanks!

score 2 · Accepted Answer · answered Jul 07 '10 at 20:55

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I've used some of the snippets available from Movable Type Scripts - both haversine and spherical law of cosines available. The code examples are all in JavaScript, but they translate very easily to C or Objective C.

answered Jul 07 '10 at 20:55

Claus Broch

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Cool. Thanks just wasn't sure if there was another way of doing this. – Nick Jul 08 '10 at 23:30

score 1 · Answer 2 · answered Jun 23 '11 at 16:14

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Check out https://github.com/100grams/CoreLocationUtils

answered Jun 23 '11 at 16:14

100grams

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I rolled my own haversine but your work on this library looks great. Thanks for sharing. Neat dead reckoning work. – Nick Jun 24 '11 at 22:06
most of the functions are deprecated Now in this Library. – Mihir Oza Jun 29 '16 at 09:47

Calculate compass heading to a CLLocation - Haversine functions for iOS

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