Dan, Jose, On Fri, Oct 10, 2008 at 8:09 PM, Dan Stahlke <[EMAIL PROTECTED]> wrote: > Jose, > > The north pole version works for me, perhaps because of the '+init=' part: > (although that probably shouldn't matter...) > gdalwarp -t_srs '+init=epsg:3408' ...
I wonder if this resolves http://trac.osgeo.org/gdal/ticket/2584 where I obtained a flipped earth... (seen from North pole). Thanks Markus > Maybe the equatorial version of EASE is different. > > If you are giving the full proj4 definition "+proj=cea ..." you might try > adding "+no_defs" at the end. Otherwise, you usually end up getting some > sort of default flatting value or something that tends to interfere whenever > an explicit radius is specified. Probably the "+ellps=sphere" ends up > overriding the faulty default value. > > - Dan > > Jose Gomez-Dans wrote: >> >> Hi, >> I know it's unpolite to reply to self, but I think I might have cracked >> this one. Comments welcomed... >> >> >> 2008/10/10 Jose Gomez-Dans <[EMAIL PROTECTED] >> <mailto:[EMAIL PROTECTED]>> >> >> >> $ gdalwarp --debug on -of GTiff -s_srs "+proj=cea +lat_0=0 >> +lon_0=0 +lat_ts=30 +a=6371228.0 +units=m" -t_srs 'EPSG:4326' >> INPUT OUTPUT.tif >> OGR_PROJ4: Can't find ellipse definition in: >> +proj=cea +lat_0=0 +lon_0=0 +lat_ts=30 +a=6371228.0 +units=m >> ERROR 1: Translating source or target SRS failed: >> +proj=cea +lat_0=0 +lon_0=0 +lat_ts=30 +a=6371228.0 +units=m >> >> >> If I add the +ellps=sphere (hint is here: >> <http://nsidc.org/data/ease/ease_grid.html#whySpherical>. What's wrong with >> having a flat Earth!!! :D), I am able to reproject the data. >> >> Is this a sound approach? >> >> Thanks, >> Jose >> >> >> -- >> Centre for Terrestrial Carbon Dynamics >> Department of Geography, University College London >> Gower Street, London WC1E 6BT, UK >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> gdal-dev mailing list >> gdal-dev@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/gdal-dev > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Open Source Geospatial Foundation http://www.osgeo.org/ http://www.grassbook.org/ _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
