Indeed! As a sidenote, once you factor in the size, to what extent do you think it is not precise? Le 11 août 2011 19:55, "Bill Freeman" <ke1g...@gmail.com> a écrit : > Only on a flat earth of radius 1 radian. Henrik is correct on a > spherical earth (which I > find close enough). > > On Thu, Aug 11, 2011 at 12:43 PM, Thomas Orozco > <g.orozco.tho...@gmail.com> wrote: >> The distance is: Sqrt( Sqr(lat1-lat2) + Sqr(long1-long2) ) >> >> Le 11 août 2011 17:09, "Thomas Weholt" <thomas.weh...@gmail.com> a écrit : >>> I got a model with longitude and latitude and want to be able to find >>> other objects nearby a selected object. Can this be done using the >>> django orm? What is the best approach to do this in a django project? >>> >>> I found a answer on Stackoverflow, but doesn't work with sqlite. Doing >>> it in SQL is ok and probably the best solution performance wise, but >>> if it has to be done in python I'll do that too. >>> >>> Ref question on stackoverflow: >>> >>> http://stackoverflow.com/questions/4610717/django-determining-if-geographic-coordinates-are-inside-of-an-circle >>> >>> -- >>> Mvh/Best regards, >>> Thomas Weholt >>> http://www.weholt.org >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Django users" group. >>> To post to this group, send email to django-users@googlegroups.com. >>> To unsubscribe from this group, send email to >>> django-users+unsubscr...@googlegroups.com. >>> For more options, visit this group at >>> http://groups.google.com/group/django-users?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To post to this group, send email to django-users@googlegroups.com. >> To unsubscribe from this group, send email to >> django-users+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/django-users?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups "Django users" group. > To post to this group, send email to django-users@googlegroups.com. > To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/django-users?hl=en. >
-- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
