I think the great circle thing is a little bit beyond my requirements! (Meaning, I don't understand it ;-)
I will stick with the basics. I reckon using the distanceTo() method, I can work out a triangle where I know the length of all sides of a right angled triangle. Then, if only I could remember basic maths, I should be able to work out the other two angles?? On Oct 10, 11:15 am, RichardC <[email protected]> wrote: > I don't know if there is something already in the SDK to work this out > for you but if not you need to research Greate Circle algorithms. > Note that if your points are only a few 10s of km (or miles) apart > then you can approximate using pythagoras. > > http://en.wikipedia.org/wiki/Great-circle_distance > > -- > RichardC > > On Oct 10, 10:54 am, Neilz <[email protected]> wrote: > > > Here's a tricky one. Or maybe it isn't... > > > I am trying to find a way to tell the difference in degrees between > > two GeoPoints. I've been playing around with GoogleMaps for a while, > > and can't see an obvious relationship between points. > > > For example, if I mark two points on the map which are clearly 45 > > degrees from each other, I would expect the differences in latitude > > and longitude to be equal, but they're not, nothing like it. So I > > don't have an obvious ratio to work with to help me find the degrees > > between the two. I need an algorithm... > > > Anyone have any ideas how I might achieve this? > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
