[OSM-talk] Bing maps is misplaced

[4x4falcon]

On 08/12/10 08:32, Steve Bennett wrote:
> On Wed, Dec 8, 2010 at 4:51 AM, Jo<winfixit at 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