On Feb 8, 11:25 am, JKurtock <[email protected]> wrote: > 6378137 meters. > > For this very precise answer to make some sense, I have to refine > Andy's question somewhat: "How does Google Maps convert a pair of > LatLngs into a distance in meters?"
That's not what the OP asked. > > Note that, despite what you learned in the Third Grade, the Earth is > NOT round. Are you taking the piss? > The >result is equal (confirming that Google is using a sphere) and >converts to a radius of 6378137 meters. 6378137 meters ... and how much did I say? > > Marcelo: SRID 4326 is not a sphere, but a spheroid. Really? well, thank you for enlightening me! It's amazing what you can learn after programming for 15 years. > > Using a sphere to approximate the shape of the Earth instead of one of > the oblate spheroids can produce errors of 100s of meters over long > distances. But if you're trying to determine the distance from > Whiteman Air Force Base to Baghdad using Google Maps, you're using the > wrong tool. I'm not trying to determine any distance. The OP asked for a radius and I gave him one. -- Marcelo - http://maps.forum.nu -- > > - Jeff > > On Feb 7, 10:33 pm, Marcelo <[email protected]> wrote: > > > > > > > > > In PostgreSQL I use SRID 4326, and that has an Earth radius of 6378137 > > meters. > > > -- > > Marcelo -http://maps.forum.nu > > -- > > > On Feb 7, 9:12 am, andy <[email protected]> wrote: > > > > hi, > > > > need help for correct google earth radius. > > > > i am getting + 7 km approx mismatch on results. > > > > i am passing 3961 miles as earth radius. > > > > andy -- You received this message because you are subscribed to the Google Groups "Google Maps API V2" 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/google-maps-api?hl=en.
