Hi, On 11 February 2012 01:33, Andrew Errington <a.erring...@lancaster.ac.uk> wrote: > On Sat, 11 Feb 2012 04:03:01 Douglas Musaazi wrote: > Don't forget- sometimes Bing imagery is not accurately aligned. You should > double-check the alignment of the images before tracing from them. Potlatch > and JOSM have tools which will allow you to move the images to correct the > alignment. ... > > I have found that the offset from one area will work within a radius of about > 50km, but it's worth checking in different areas.
Depends on the area, but there are places where the offset direction is different at points just 5 km apart, in other words the image is rotated, scaled, warped -- not only offset. But the newly added Bing imagery is said to be rather well calibrated. Cheers _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
