[gdal-dev] Problems with GDAL 1.10.1 converting from NetCDF to Geotiff

[William Hudspeth]

Thank you,

Setting the environmental variable worked....

V

On 01/06/2015 09:11 AM, Julien Demaria wrote:
> Dear Victoria,
>
> You can try
> export GDAL_NETCDF_BOTTOMUP=NO
> just before launching gdal_translate
> but note that this works only if your dataset is oriented north-south
>
> For GDAL developpers: I have implemented a path on my version to force blockYSize to 1 if bottomup dataset :
>
> --------------------- gdal/frmts/netcdf/netcdfdataset.cpp --------------------- index f9de39f..5b7a16a 100644 @@ -457,6 +457,15 @@ netCDFRasterBand::netCDFRasterBand( netCDFDataset *poNCDFDS,
>           }
>   	} 		
>   #endif
> +
> +/* -------------------------------------------------------------------- */
> +/*      Force block size to 1 scanline for bottom-up datasets if        */
> +/*      nBlockYSize != 1                                                */
> +/* -------------------------------------------------------------------- */
> +    if( poNCDFDS->bBottomUp && nBlockYSize != 1 ) {
> +        nBlockXSize = nRasterXSize;
> +        nBlockYSize = 1;
> +    }
>   }
>
> I have also implemented several other improvements on the netCDF Driver (including full support of groups and netCDF4), I will provide them to the community ASAP.
>
>
> Best Regards,
>
> Julien
>
> -----Message d'origine-----
> De : gdal-dev-bounces at lists.osgeo.org [mailto:gdal-dev-bounces at lists.osgeo.org] De la part de VictoriaH
> Envoyé : mardi 6 janvier 2015 16:11
> À : gdal-dev at lists.osgeo.org
> Objet : [gdal-dev] Problems with GDAL 1.10.1 converting from NetCDF to Geotiff
>
> Hello,
>
> I am running GDAL 1.10.1 on an Ubuntu 14.04 machine. When I try to create a Geotiff from a NetCDF file, I get the following error. The problem does not occur when using an earlier version of GDAL (e.g. 1.9.2). I have seen some discussion of this issue on the mailing lists, but it is unclear what the workaround is. I would appreciate any information about how to get around this issue.
>
>
> ERROR 1: nBlockYSize = 663, only 1 supported when reading bottom-up dataset ERROR 1: NETCDF:PM25_2004_06_average.nc:Data, band 1: IReadBlock failed at X offset 0, Y offset 0 ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 0
>
> I use the following as an example:
>
> gdal_translate -ot Byte -of GTiff NETCDF:"PM25_2004_06_average.nc":Data
> pm_2004.tif
>
> Thanks for any help...
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/Problems-with-GDAL-1-10-1-converting-from-NetCDF-to-Geotiff-tp5180197.html
> Sent from the GDAL - Dev mailing list archive at Nabble.com.
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