[gdal-dev] NSIF with GDAL

[Bar Ori]

First, thank you for the information about the FWTool, I will try the gisinternals as suggested.

Second, Sorry, yes...
This huge document has table with the metadata needed.
For example (not in the document) , I want to add a field named "CNRTYCODE" with the value "US". How do I add it as part of my nsf file without any aux.xml file?
Is there any documentation how to work with the TRE?

-----Original Message-----
From: Even Rouault [mailto:even.rouault at spatialys.com] 
Sent: Monday, 31 August 2015 13:25
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 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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