[gdal-dev] Why GTModelTypeGeoKey in EPSG:3857 GeoTIFF is User-Defined?

Rahkonen Jukka (MML) jukka.rahkonen at maanmittauslaitos.fi
Mon Jan 27 04:24:20 PST 2020


See more details from this Geoserver issue https://osgeo-org.atlassian.net/browse/GEOS-9475.
The core is that when GDAL writes a GeoTIFF in EPSG:3857 is sets this tag:
GTModelTypeGeoKey (Short,1): User-Defined

Geoserver is awaiting GTModelTypeGeoKey (Short,1): ModelTypeProjected

Is there something specific in EPSG:3857 that makes it into User-Defined, or what happens?
I used GDAL 3.1.0dev for testing, with command
gdal_translate -a_srs epsg:3857 test.tif 3857.tif

-Jukka Rahkonen-

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