Hello Sometimes aerial imagery is not aligned with existing OSM data. Is it possible to *know* which of the two is right?
I was going by the assumption that OSM data always trump aerial imagery, but after finding an instance where this was not the case (because the OSM data had been previously traced on a misaligned aerial image) I'm not sure what to do. If I was lucky enough to have been through that area AND had the GPS on, then it's fine - I have a trace I can trust and I'll align accordingly. But when one hasn't got a personal trace, what can be done? Thanks Alex _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/listinfo/newbies
