[gdal-dev] DIMAP driver fail to get some meta data

[guillaume huby]

I have some trouble getting some meta data using DIMAP Driver.

gdalinfo --version
> GDAL 1.6.0dev, FWTools 2.2.8, released 2008/10/29
>

Sample data can be found here :
ftp://ftp.dmcii.com/samples/32m_MS_L1R/DN000340T_L1R.zip

The meta data file contains this data :

...
> <Image_Interpretation>
>         <Spectral_Band_Info>
>             <BAND_INDEX>1</BAND_INDEX>
>             <BAND_DESCRIPTION>NIR</BAND_DESCRIPTION>
>             <PHYSICAL_GAIN>0.6376299283778701</PHYSICAL_GAIN>
>             <PHYSICAL_BIAS>0.0642515909964508</PHYSICAL_BIAS>
>             <PHYSICAL_UNIT>W/m2/sr/m-6</PHYSICAL_UNIT>
>         </Spectral_Band_Info>
>         <Spectral_Band_Info>
>             <BAND_INDEX>2</BAND_INDEX>
>             <BAND_DESCRIPTION>RED</BAND_DESCRIPTION>
>             <PHYSICAL_GAIN>0.6190674084836884</PHYSICAL_GAIN>
>             <PHYSICAL_BIAS>0.0666344554873623</PHYSICAL_BIAS>
>             <PHYSICAL_UNIT>W/m2/sr/m-6</PHYSICAL_UNIT>
>         </Spectral_Band_Info>
>         <Spectral_Band_Info>
>             <BAND_INDEX>3</BAND_INDEX>
>             <BAND_DESCRIPTION>GREEN</BAND_DESCRIPTION>
>             <PHYSICAL_GAIN>0.717558361863802</PHYSICAL_GAIN>
>             <PHYSICAL_BIAS>0.019273652406175568</PHYSICAL_BIAS>
>             <PHYSICAL_UNIT>W/m2/sr/m-6</PHYSICAL_UNIT>
>         </Spectral_Band_Info>
>     </Image_Interpretation>
> ...
>

And gdalinfo outputs :

>gdalinfo DN000340T_L1R.dim
> Driver: DIMAP/SPOT DIMAP
> ...
> Metadata:
>   ...
>   SPECTRAL_BAND_INDEX=1
>   SPECTRAL_BAND_DESCRIPTION=NIR
>   SPECTRAL_PHYSICAL_GAIN=0.6376299283778701
>   SPECTRAL_PHYSICAL_BIAS=0.0642515909964508
>   SPECTRAL_PHYSICAL_UNIT=W/m2/sr/m-6
> ...
>

The problem is that there is spectral info only for first band. I would like
to see the data for each band.

I also made a C++ program using the API ( GDALDataset::GetMetadata and
GDALRasterBand::GetMetadata )giving no more results.

Is there some turn-around to get the meta-data using the driver ?
Should I submit a bug ?

Thank you for your reply.

Guillaume.
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