[gdal-dev] Why not netCDF output?

[Even Rouault]

Joaquim,

The valid formats for the output of gdalwarp are formats that support the 
Create() method, not just the CreateCopy() method. This is indicated by (rw+) 
: the + indicates that Create() is supported.

The difference between Create() and CreateCopy() is mainly that Create() allows 
writing of pixel data in random order, which is needed by gdalwarp.

You can try in 2 steps :
1) gdalwarp -of VRT lixo.grd [other_options] temp.vrt
2) gdal_translate -of netCDF temp.vrt proj.grd

Best regards,

Even

> Hi
> 
> While running this command
> 
> gdalwarp -s_srs +proj=latlong -t_srs "+proj=ortho +lon_0=-42 +lat_0=40
> +ellps=WGS84" -of netCDF lixo.grd proj.grd
> 
> I get
> 
> Output driver `netCDF' not recognised or does not support direct output
> file creation.  The following format drivers are configured
> (a format list where netCDF is not listed)
> 
> but if I ask gdalwarp the list of formats, netCDF is listed there as
> (rw). Furthermore
> 
> gdalwarp --format netCDF
> Format Details:
>    Short Name: netCDF
>    Long Name: Network Common Data Format
>    Extension: nc
>    Help Topic: frmt_netcdf.html
>    Supports: CreateCopy() - Create dataset by copying another.
> 
> ??
> 
> Joaquim Luis
> 
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