[thredds] Please add LambertConformalConicEllipse (and Albers, AlbersEllipse) to WCS

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  • Subject: [thredds] Please add LambertConformalConicEllipse (and Albers, AlbersEllipse) to WCS
  • From: Hendy Sumanto <hsumanto@xxxxxxxx>
  • Date: Thu, 8 Sep 2011 13:49:33 +1000 (EST)
Hi Yuan,

I am having the same exact issue as well as I am experimenting with dataset 
that has TransverseMercatorProjection and LambertConformalConicEllipse.

Looking at GeotiffWriter 
http://svn.unidata.ucar.edu/repos/thredds/tag/REL-TDS-4.2.8/cdm/src/main/java/ucar/nc2/geotiff/GeotiffWriter.java

I can see that currently GeotiffWriter only has implementations for the 
following methods:
        addLatLonTags
        addPolarStereographicTags
        addLambertConformalTags
        addMercatorTags
        addTransverseMercatorTags
        addAlbersEqualAreaEllipseTags
        addAlbersEqualAreaTags 

but the writeGrid method only allows LatLon, LambertConformal, Stereographic, 
Mercator, AlbersEqualAreaEllipse, AlbersEqualArea thus that is the reason why 
our dataset melbourne-utm-patch-datumAdded.nc (TransverseMercatorProjection) 
and melbourne3112-patch-datumAdded.nc (LambertConformalConicEllipse) are 
failing to generate geotiff file. 

Could we allow TransverseMercatorProjection as it is commented in writeGrid 
method? 
Has LambertConformalConicEllipse been implemented as well? 
And lastly are you guys planning to implement all projections supported by CF 
convention?

I could also see the possibility to use GDAL here to generate the required 
geotiff file. 

Regards,

Hendy




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