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I use osm map in my project and I want to draw shortest line between two point like this: enter image description here

How do they draw this path? Give me please a clue )

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I found answer!) Just need haversine formula to calculate distance in rad, then use formula from here: Ed Williams, Aviation Formulary

  • A couple of problems, so far: 1. You don't reproduce any formulas here (what if the link breaks?). 2. The solution gives geographic coords (lat, long) while the questions asks for Mercator (projected) coords. – Martin F Oct 3 '15 at 19:59

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