The map data in the Google Maps app and the maps that are available for developers to use via API (i.e. a MapView in Android SDK) come from different providers/sources, therefore the geo coordinates differ and the same lat/lng pair might pinpoint another location on both maps.
You can see my post on stackoverflow here, especially my own reply to it: http://stackoverflow.com/questions/3289039/google-maps-apps-with-mapview-have-different-current-positions On Oct 24, 11:41 pm, Paul <idi...@gmail.com> wrote: > This is not an app coding problem. I'm just calling toString on > Location object. I can reproduce using Google Maps app on the > emulator. Send emulator a known location (found using Google Maps web > for example), and then use My Location on Google Maps app to see where > it thinks that point is. > > Guess what, its off by a few hundred yards. > > I run the same example on the setup on my PC and everything is fine. > This is some weird issue either Mac SDK or 64 bit SDK, or maybe even > Java runtime (new version was recently installed on my Mac). > > So its not my math that needs to be checked, but someone elses, > basically somewhere some funky conversion is going on, but its nothing > that I've written. > > Also I have found one other person who had the same issue, posted on > Stack Overflow (I've also posted there but no response yet). > > Its not something a lot of people would pick up on. You have to be > testing a location based app and you have to be sending known > locations to the app and then verifying that the app shows the correct > point. > > On Oct 23, 11:19 pm, Frank Weiss <fewe...@gmail.com> wrote: > > > > > > > > > Carefully check your math. Also note that truncation occurs when a decimal > > string is converted to a binary floating poit, and possibly also by internal > > microdegree conversion. Another thing to take into consideration is that if > > the original value has just two decimal digits of precision, 41.74, the > > output value should also use that precision, the fourteen decimal digits. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
