On 24 November 2010 17:18, Richari <[email protected]> wrote: > Hey i was just curious how google maps know whats a road and whats not > a road.do they just have a massive database of points(i assume not) or > what?
Yes they have a massive database of points, points grouped into lines. Groups of lines make roads. * > > Im asking this question in relation to a project that i am working on > and i want to know if there is a way to 'detect' roads, or is all i > can do just query for directions off google. With Google all can do is use directions. > > hope my question is clear. > cheers > > p.s. > I asked a friend of mine and he just said google keep it a secret and > all you can do is constantly query. Yes that is pretty much true. Try http://www.openstreetmap.org/ They do allow you to download their MASSIVE database. There are also more flexible APIs. * Almost certainly not too unlike http://wiki.openstreetmap.org/wiki/Data_Primitives > > -- > 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. > > -- 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.
