[josm-dev] projection Mercator, set EPSG 3785 instead of EPSG 3857

[M∡rtin Koppenhoefer]

2011/2/21 Josh Doe <josh at joshdoe.com>:
> I've been meaning to submit a bug, but the "Mercator" projection in
> JOSM is NOT EPSG:3857 as it claims, I'm not sure what EPSG or ESRI
> code it corresponds to.


I guess it is the google projection, as this would IMHO be the intended one.


> The definitions of EPSG:3785 and EPSG:3875 are different, but they
> should be equivalent.


3785 is using the parameters OSM-mapnik is using (Sphere as
"Ellipsoid", no inverse flattening) while 3857 is using an Ellipsoid
with inverse flattening of 298.257223563.

Cheers,
Martin