[gdal-dev] GetProjectionRef() returning NULL

[Frank Warmerdam]

On 11-05-09 10:37 AM, Rodolfo Bonnin wrote:
> Hello all,
>
> I'm working with a HDF5 dataset with Gdal 1.8.0, I open it with the
> HDF5Image driver.
> The image metadata is read OK from what I can see, but when I want to
> execute the GetProjectionRef() method, it returns null, even if the
> documentation says it wouldn't return any null pointer.
>
> I've traced the null pointer to HDF5ImageDataset::CreateProjections(),
> in line 562 it reads
>
> _______________________________________________________________________
> poH5Objects=HDF5FindDatasetObjects( poH5RootGroup,  "Latitude" );
>      if( !poH5Objects ) {
> 	return CE_None;
>      }
> _______________________________________________________________________
>
> Since my HDF5 file doesn't have a "Latitude" dataset, the function
> returns without setting the pszProjection variable, it remains null
> and   is never being set as an empty string, as the GetProjectionRef
> consist only in:
> ________________________________________________________________________
> const char *HDF5ImageDataset::GetProjectionRef( )
>
> {
>      return pszProjection;  //
> }
> _______________________________________________________________________

Rodolfo,

I agree, this is a bug.  I have filed a ticket on the issue and applied a
fix in 1.8 and trunk.

   http://trac.osgeo.org/gdal/ticket/4076

Best regards,
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