Geopy has a distance function build in, if you want something a little more widely used/tested: http://code.google.com/p/geopy/wiki/GettingStarted#Calculating_distances
Alex On Jul 29, 5:23 am, Alexandre González <agonzale...@gmail.com> wrote: > I've solved translating a JavaScript function to python: > > from math import * > > RADIUS = 6371 #Earth's mean raadius in km > > def distance(origin, destiny): > (latitude1, longitude1) = (origin[0], origin[1]) > (latitude2, longitude2) = (destiny[0], destiny[1]) > > dLat = radians(latitude1 - latitude2) > dLong = radians(longitude1 - longitude2) > > # matter of faith > a = sin(dLat/2) * sin(dLat/2) + cos(radians(latitude1)) * > cos(radians(latitude2)) * sin(dLong/2) * sin(dLong/2) > c = 2 * atan2(sqrt(a), sqrt(1-a)) > > return (RADIUS * c) > > # a test > origin = (40.96312364002175, -5.661885738372803) > destiny = (40.96116097790996, -5.66283792257309) > print distance(origin, destiny) > > 2010/7/29 Alexandre González <agonzale...@gmail.com> > > > > > I going to try it now, but the unique results that I obtain in google > > searching [1] gd2gcc is this thread :) > > > [1] > >http://www.google.com/search?hl=en&safe=off&q=gd2gcc&aq=f&aqi=&aql=&o... > > > <http://www.google.com/search?hl=en&safe=off&q=gd2gcc&aq=f&aqi=&aql=&o...>Did > > you make some mistake writting it? > > > Thanks, > > Álex González > > > On Wed, Jul 28, 2010 at 19:34, !!CONDORIOUS!! <condor.c...@gmail.com>wrote: > > >> (lat , lon in radians) > > >> pt 1 = lat, lon, alt=0 > >> pt 2 = lat, lon, alt=0 > > >> p1_gcc = gd2gcc(p1) > >> p1_gcc = gd2gcc(p2) > > >> gd2gcc ( is a standard operation found on the itnernet) > > >> dis = sqrt(sum(pow(p1_gcc-p2-gcc, 2))) > > >> cheers, > > >> 2010/7/28 Alexandre González <agonzale...@gmail.com>: > >> > Hi! I'm using the Django GEOS API [1] in my project to see the distance > >> > between two users. > >> > I get the coordinates from google maps in latitude/longitude mode and I > >> need > >> > to calculate the distance between them. I'm testing with .distance() > >> method > >> > at GEOSGeometry but I receive a strange value. > >> > This is the result of one of my test: > >> > In [45]: Point(40.96312364002175, > >> > -5.661885738372803).distance(Point(40.96116097790996, > >> -5.66283792257309)) > >> > Out[45]: 0.0021814438604553388 > >> > In Google Maps Distance Calculator [2] I can see that the result is: > >> 0.145 > >> > miles = 0.233 km = 0.126 nautical miles = 233 meters = 764.436 feet > >> > A friend told me on Google that perhaps I must calculate the distance in > >> > UTMs and the results surely is a lat/long distance. To test it I need > >> pygps > >> > that is a project not maintained to import > >> > LLtoUTMfrom from LatLongUTMconversion > >> > Any idea about this? > >> > [1]http://docs.djangoproject.com/en/dev/ref/contrib/gis/geos/ > >> > [2] > >>http://www.daftlogic.com/projects-google-maps-distance-calculator.htm > > >> > -- > >> > Please, don't send me files with extensions: .doc, .docx, .xls, .xlsx, > >> .ppt > >> > and/or .pptx > >> >http://mirblu.com > > >> > -- > >> > You received this message because you are subscribed to the Google > >> Groups > >> > "Django users" group. > >> > To post to this group, send email to django-us...@googlegroups.com. > >> > To unsubscribe from this group, send email to > >> > django-users+unsubscr...@googlegroups.com<django-users%2bunsubscr...@googlegroups.com> > >> . > >> > For more options, visit this group at > >> >http://groups.google.com/group/django-users?hl=en. > > >> -- > >> Condor > >> 310.951.1177 > >> condor.c...@gmail.com > > >> :%s/war/peace/g > > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "Django users" group. > >> To post to this group, send email to django-us...@googlegroups.com. > >> To unsubscribe from this group, send email to > >> django-users+unsubscr...@googlegroups.com<django-users%2bunsubscr...@googlegroups.com> > >> . > >> For more options, visit this group at > >>http://groups.google.com/group/django-users?hl=en. > > > -- > > Please, don't send me files with extensions: .doc, .docx, .xls, .xlsx, .ppt > > and/or .pptx > >http://mirblu.com > > -- > Please, don't send me files with extensions: .doc, .docx, .xls, .xlsx, .ppt > and/or .pptxhttp://mirblu.com -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@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.
