As for me the main problem is, that gdal write wrong WKT for 3857
(http://trac.osgeo.org/gdal/ticket/3962).
The Geographic SRS use WGS84 ellipsoid
(SPHEROID["WGS_1984",6378137,298.257223563]]) instead sphere
(EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0
+lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext
+no_defs"],) and all the data shifts.
Best regards,
Dmitry
15.04.2015 19:15, Even Rouault пишет:
Hi,
I've collected in http://trac.osgeo.org/gdal/ticket/5924 a summary of issues
and findings when trying to write GeoTIFF files in EPSG:3857 in a "standard" way
(using ProjectedCSTypeGeoKey = 3857), while making them correctly displayed by
ArcGIS (and ideally by other independant implementations).
The current situation is that there's no such way (AFAIK). I'd appreciate any
feedback/suggestion related to that issue.
Best regards,
Even
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