yrrman yrrman wrote:
the Global Landcover set GLC2000 is available in grid format from [0].
Associated with it is the .hdr file with the projection description
[2].
Apparently the map units are in decimal degree.
When I ask gdalinfo, I get the WKT description of the SRS, see [3]
Everything's fine with this, I only came across the UNIT-Field
UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9108"]],
where the unit is degree, defined according to epsg:9108. When you
look up epsg:9108 in the epsg registry [1] you get as Unit of Measure:
Code: EPSG::9108 - Name: degree minute second hemisphere (i.e. not
decimal degree)
Shouldn't this rather be epsg:9102 then?
Code: EPSG::9102 Name: degree, 1 degree: 0.017453292519943278 radian
Chris,
For WKT representations we deliberately use decimal degrees instead of
DMS format for convenient processing. So the result isn't quite exactly
according to EPSG but the difference is deliberate and in my opinion
is important for interoperability.
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com
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and watch the world go round - Rush | Geospatial Programmer for Rent
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