>
> Hi There,
>
> I'm working with a set of fairly large geojsonl files, one for each state
> and territory in the United States. I'm using ogr2ogr to ingest this data
> into PostGIS, generally without issue, to speed up an expensive geospatial
> join.
>
> However, one of my files, specifically the
Thanks Even and everyone!
As a workaround I think that for each XMP tag=value in the input .jpg, I can
specify '-mo tag=value' option to gdal_translate. It appears that those
tags/values are embedded and preserved in GDALMetadata through subsequent gdal
processing. E.g. I can specify the follow
That makes more sense.
The PR that included the copy of the XMP is
https://github.com/OSGeo/gdal/pull/3050/
The key change is in the function GDALDriver::DefaultCreateCopy , that is
not used by gdalwarp
.___ ._ ..._ .. . ._. .___ .. __ . _. . __.. ... ._ .__
Entre dos pensamientos racionales
The geotiff produced by step 1 contains the XMP tags as expected.
But the warped geotiff produced by step 2 does not contain any XMP tags.
ah ok, gdalwarp indeed does not preserve the XMP information. I guess it
would be reasonable to do it. You may create an enhancement ticket on
the GDAL g
Hi,
If gdal_translate keeps the tags you should be able to create a small test file
by reducing the size with -outsize.
-Jukka Rahkonen-
-Alkuperäinen viesti-
Lähettäjä: gdal-dev Puolesta Tom O'Reilly
Lähetetty: maanantai 8. elokuuta 2022 23.14
Vastaanottaja: Even Rouault
Kopio: gda
Hi Javier,
As noted in my previous response, I was wrong about gdal_translate - it
actually does transfer the XMP tags from the input to the output, as XMP tags.
It is a subsequent call to gdalwarp that drops the XMP tags.
I am running gdal 3.5.0
Thanks
Tom
Hi Evan,
I was mistaken in which gdal program drops the XMP tags.
gdal_translate actually transfers the XMP tags properly from the input jpg file
to tif output. But a subsequent gdalwarp on that tif does not pass the XMP
tags to its output.
So the sequence is, for example:
step 1: Convert jpg
Tom,
It would be interesting if you could provide an image how to reproduce that
With the sample file from the autotest suite, I can't reproduce that:
$ gdal_translate ../autotest/gdrivers/data/jpeg/byte_with_xmp.jpg out.tif
$ gdalinfo out.tif -mdd all
Driver: GTiff/GeoTIFF
Files: out.tif
Siz
Which version of GDAL are you using?
in https://gdal.org/programs/gdal_translate.html there is an option,
"-noxmp", since GDAL 3.2. Without that option it should keep them. If I
remember correctly, the XMP tags are copied as proper XMP, not as
GDALMetadata, with TIFF files.
An example with "gdalin
gdal_translate output .tif file does not contain XMP tags that were present in
the input .jpg file.
The output file contains many of the input EXIF tags, aggregated as the
GDALMetadata tag, but not the XMP tags.
Why does gdal_translate remove XMP tags - is there an option to preserve them?
Th
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