0

Hello everyone i was wondering how to rotate an arrow i.e uiimageview according to 2 coordinates. I already have coordinate A latitude & longitude and also coordinate B latitude & longitude. I dot want to use location manager start updating header since I already have my start & end coordinates. Thank you :)

droidiphonereef
  • 85
  • 2
  • 9
  • 1
    Have you googled it? Have a look at this question: http://stackoverflow.com/questions/3809337/calculating-bearing-between-two-cllocationcoordinate2ds – Mikael May 24 '13 at 09:28
  • Check my answer on -- http://stackoverflow.com/questions/16730770/with-what-coordinates-do-i-use-to-manually-draw-a-custom-path-with-an-mkmapview/16731483#16731483 –  May 24 '13 at 09:31

1 Answers1

0

This will give you the direction in radiants

radiants = arctan((latB-latA)/(lonB-LonA))

You can convert it to degrees with 

degrees = (radiants*180)/π
gtsouk
  • 5,208
  • 1
  • 28
  • 35