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

[Frederik Ramm]

Hi,

>> Mercator completely breaks the WMS plugin (try and download a large
>> sat image from Landsat with Mercator enabled, then zoom into an area
>> and download again to see what I mean). But that's a problem of the
>> plugin really, I think I'll simply modify the WMS plugin so that it
>> refuses to work if you are using Mercator.
>
> Please don't.
>
> It seems to work well with the YWMS plugin. I would hate to loose that
> functionality.
>
> Maybe it just looks like it works because the downloaded area is
> typically small, but it seems to be good enough.

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.

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00.09' E008°23.33'