If you mean straight line distance and if the locations are reasonably close and/or reasonably well distributed then just do a straightforward trig calculation.
If you want more accuracy use a great circle distance calculation (just Google it). Assuming you just need a ranking rather than accurate distance I suspect this would be overkill in most real-world situations. If you had thousands of locations to sort rather than just 200 I would do the simple trig calc, then sort into distance order and then walk the list to see if the distance/separation of adjacent location pairs was within a threshold and do the the gc calc to determine the closest. On Monday, December 31, 2012 7:32:18 AM UTC-5, Nelson André wrote: > > Hello all, > > I have a JSON list that I retrive from one website I have that gives me > the following fields: > > > - Name > - Latitude > - Longitude > > This list has around 200 items. > > I want to order the list by distance to my current location, closer > locations on top. > > How may I do this calculation and ordering? > > Many Thanks > > Nelson > -- 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
