really , indeed!! On Thu, Aug 11, 2011 at 11:46 PM, Thomas Orozco <g.orozco.tho...@gmail.com>wrote:
> 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. > -- 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.
