[gdal-dev] Bug in coordinate system library? unknown elliptical parameter for BNG coordinate system

Frank Warmerdam warmerdam at pobox.com
Tue Mar 23 15:00:33 EDT 2010

Andreas Joisten wrote:
> Hi Jean-Claude,
> many thanks for your answer.
> As you can see I did not specifiy the ellipsoid parameter:
> gdalwarp -s_srs EPSG:27700 -t_srs EPSG:4326 input_geotiff_in_BNG.tiff  output_geotiff.tiff
> the gdal error message was:
> ERROR 6: Failed to initialize PROJ.4 with `+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.
> 9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +datum=OSGB36 +units=m +no_defs'.
> unknown elliptical parameter name
> Is that a bug in GDAL?


Yes, I would say it is. Could you please file a ticket on this?

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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