[gdal-dev] CreateCopy() from gtiff file does not initialize AREA_OR_POINT metadata

[Even Rouault]

Le jeudi 31 mai 2012 19:47:38, Etienne Tourigny a écrit :
> When using a driver's CreateCopy function to copy a source dataset in
> GTiff format, It seems that  the  AREA_OR_POINT metadata is not
> initialized.
> 
> This is seemingly  for performance reasons as shown in the code below.
>  However, it has the unwanted side-effect that the AREA_OR_POINT
> metadata item is not copied over in most (all?) drivers.
> 
> This may be worth fixing and certainly worth being documented somewhere.
> Are there other drivers which have the same behaviour?
> 
> char **GTiffDataset::GetMetadata( const char * pszDomain )
> {
> [...]
>     /* FIXME ? Should we call LookForProjection() to load
> GDALMD_AREA_OR_POINT ? */
>     /* This can impact performances */
> 
>     return oGTiffMDMD.GetMetadata( pszDomain );
> }

See http://trac.osgeo.org/gdal/ticket/4691 for analysis and fix. I didn't feel 
that to be critical enough to backport in 1.9 branch (the GTiff driver becoming 
so complex that mastering all code path combinations is really challenging)

> 
> regards,
> Etienne
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