On 08/12/10 08:32, Steve Bennett wrote:
On Wed, Dec 8, 2010 at 4:51 AM, Jo<winfi...@gmail.com> wrote:
Jaak, do you know that you can change the offset in most editors? Potlatch2
and JOSM. I suppose in Merkaartor too, but I don't know for sure.
But how do you know which direction to offset and by how much? Is the
Bing imagery really offset so uniformly, over large areas?
Btw:
They are shifted about 20-25 meters, which makes them quite unusable
for tracing.anything more than big roads.
But if you have some gps traces in the area and/or some surveyed roads
then it's possible to line up the imagery with the known surveyed items.
Area I'm working in at the moment generally appears to be 5-10 metres
out. From numerous gps traces and known positions.
Same as was done with Yahoo and some of the early nearmap imagery.
Cheers
Ross
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