[gdal-dev] NSIF with GDAL

[Even Rouault]

Le lundi 31 août 2015 12:17:17, Bar Ori a écrit :
> The metadata I am trying to add is according to " STANAG 4545 /AEDP-4 NATO
> Secondary Imagery Format (NSIF)"
> (http://www.nato.int/structur/ac/224/standard/4545/4545_documents/4545_ed1
> _amd1.pdf) 

Pointing at a 160 page long document isn't really what I'm calling to be 
"specific" ;-) Which fields are you trying to write ?

> I read about the TRE at http://gdal.org/frmt_nitf_advanced.html
> but didn't understood exactly how to work with it in my code. But again,
> will it be saved on the file itself or on external file? My goal is to
> have all in one nsf file.

It will be written in the file. Composing TRE isn't admitedly obvious. It 
requires 

> 
> P.S. for viewing the metadata, I am using the FWTool, do you think maybe
> there is the problem? Maybe this tool cannot read it from the file even
> when exists?

Hum, FWTools is really deprecated and hasn't been updated in years, although I 
would think it should be able to read, at least the main metadata fields.

I'd recommend using up-to-date builds at http://gisinternals.com/ rather. 
Especially for the writing part, since some of the improvements in the NITF 
driver must be posterior to the latest FWTools version.

> 
> Thanks, Ori.
> 
> -----Original Message-----
> From: Even Rouault [mailto:even.rouault at spatialys.com]
> Sent: Monday, 31 August 2015 12:42
> To: Bar Ori
> Cc: gdal-dev at lists.osgeo.org; Ben Saraf Omer
> Subject: Re: [gdal-dev] NSIF with GDAL
> 
> Le lundi 31 août 2015 11:21:51, vous avez écrit :
> > Hi Even,
> > Thanks for your quick response.
> > I have already read and worked according to this document
> > (http://gdal.org/frmt_nitf.html) Still, after removing the aux.xml
> > file, the data is gone with it.
> 
> That's a bit surprising. See:
> 
> $ gdal_translate -q byte.tif byte.ntf -of NITF -co FTITLE=foo -a_srs
> EPSG:32611 $ rm byte.ntf.aux.xml $ gdalinfo byte.ntf | grep FTITLE
> NITF_FTITLE=foo
> 
> > Moreover, this document talks about specific info which is relevant to
> > NITF header, but I have an additional information that is not part of
> > NITF (my metadata is relevant to NSIF - STANAG 4545).
> 
> It is a bit difficult to comment as you're not very specific about which
> exact info you're trying to write.
> 
> You've the possibility to write content of TREs (for most of them you'll
> have to compose it manually) in file or image subheaders with the TRE= and
> FILE_TRE= creation options.
> 
> Even
> 
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