[josm-dev] Change JOSM default projection from EPSG:4326 to Mercartor?

[Gabriel Ebner]

On Fri, Nov 30, 2007 at 10:44:04AM +0100, Frederik Ramm wrote:
> Problem is that you don't immediately see when the error becomes too  
> big... but it should be noticeable with the YWMS plugin as well. Zoom  
> out so that you have a whole greater city area in view, preferably  
> with an easily recognizable large feature on the side that is farther  
> away from the equator (e.g. zoom to a full view of Hannover with the  
> motorway 44 in the north or so), then do a YWMS download. I can't  
> verify it at the machine I'm at now but I would expect the motorway  
> in the aerial image to deviate significantly from the motorway as  
> drawn in JOSM - of course if you then zoom in to verify, the error  
> will be gone.

I'd have bet it would work with Yahoo as they are also using some Mercator
projection AFAICT.  But I just tried and it doesn't really work.  (OTOH this
might show some problems with YWMS, e.g. try to download the northern and
southern hemisphere separately.  You'll see imagery from the Falkland Islands
near the equator.)

Does anybody know what projection Yahoo is using, so we can support Yahoo
tiles properly?

  Gabriel.