From: "Chris Hill" <[email protected]> Sent: Sunday, May 30, 2010 11:53 AM
> I believe the StreetView tiles are offset south(ish) by a few metres in > East Yorkshire too. Reprojected shape files line up well with surveyed > data. I have traced a few buildings from StreetView but I've stopped > until I had worked out what was wrong. Now given other people's comments > I do think there may be some discrepancy. > > Would a few carefully surveyed road junctions with many GPS traces to > work from help to identify any discrepancy? Or is there a better way? Are the OS StreetView tiles based on OS grid squares? If so, the co-ordinates of the four corners of any tile must be known with very great precision. Wouldn't give a basis for verification? -- Steve _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-gb
