Hello,
yes, first look:
- at the doc of the DES creation option in
https://gdal.org/drivers/raster/nitf.html#creation-issues
- at
https://gdal.org/drivers/raster/nitf_advanced.html#data-extension-segments-xml-des
you will need to compose the DES segment in a relatively low level.
Look at examples in :
-
https://github.com/OSGeo/gdal/blob/de6a6b44302be5c6a294d86f6ca35ebcdce563ff/autotest/gdrivers/nitf.py#L3728
-
https://github.com/OSGeo/gdal/blob/de6a6b44302be5c6a294d86f6ca35ebcdce563ff/autotest/gdrivers/nitf.py#L3795
Note: gdal.EscapeString(des_data, gdal.CPLES_BackslashQuotable) with
binary data only works since a commit done yesterday in GDAL master!
If using an older version, backslash escaping can be done with :
escaped_data = data.replace(b'\\', b'\\\\').replace(b'\0', b'\\0') \
.replace(b'\"', b'\\"').replace(b'\n', b'\\n')
Best regards,
Even
Le 24/08/2021 à 18:45, ni hao a écrit :
Hi List,
Is there a GDAL utility or Python code to delete/alter/write to NITF
Data Extension Segments (DES) ?
Thanks.
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