Your message dated Mon, 8 Aug 2022 17:48:34 +0200
with message-id <[email protected]>
and subject line Re: Bug#1016870: gdal-bin: Support for KEA format is somewhat
hidden
has caused the Debian Bug report #1016870,
regarding gdal-bin: Support for KEA format is somewhat hidden
to be marked as done.
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1016870: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1016870
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--- Begin Message ---
Package: gdal-bin
Version: 3.2.2+dfsg-2+deb11u1
Severity: minor
Dear Maintainer,
Dear Maintainer,
I was going to file a bug saying "Please enable support for KEA
format in GDAL" - but then I discovered that this format actually is
supported, but that support is far from obvious.
I'm attempting to process some elevation data from New Zealand.
The KEA format download is about 9 GB, compared to about 14 GB for
GeoTIFF. So I am motivated to use KEA if possible.
Searching, I found that GDAL does support KEA format since version
2.0:
https://gdal.org/drivers/raster/kea.html
But is this support enabled in the Debian package? It is not
mentioned in the list of drivers in the --long-usage output, and
libkea does not seem to be a dependency of GDAL (in fact it seems
not to be in Debain at all), and KEA is not mentioned in the
configure flags at
https://sources.debian.org/src/gdal/3.5.1%2Bdfsg-1/debian/rules/
So I was all ready to file a bug, but I thought I'd better try
anyway and I got this:
$ gdalinfo lds-tile-cj-KEA/CJ.kea
Driver: HDF5Image/HDF5 Dataset
Files: lds-tile-cj-KEA/CJ.kea
Size is 8192, 8192
Corner Coordinates:
Upper Left ( 0.0, 0.0)
Lower Left ( 0.0, 8192.0)
Upper Right ( 8192.0, 0.0)
Lower Right ( 8192.0, 8192.0)
Center ( 4096.0, 4096.0)
Band 1 Block=256x256 Type=Float32, ColorInterp=Undefined
Metadata:
BAND1_DATA_BLOCK_SIZE=256
BAND1_DATA_CLASS=IMAGE
BAND1_DATA_IMAGE_VERSION=1.2
???!!! So KEA format IS supported - but using the HDF5 driver.
https://gdal.org/drivers/raster/hdf5.html has no indication that
HDF5 and KEA are related.
Really I'm not sure what the right fix for this is. One thing
that would have helped me would have been if `gdal_translate --long-usage
| grep -i kea` reported something, e.g. "HDF5: Hierarchical Data Format 5
(including KEA)". But actually, now that I look, --long-usage doesn't
even mention HDF5 - it only mentions HDF4. (It doesn't help that it isn't
sorted.)
It would also have been useful if https://gdal.org/drivers/raster/kea.html
had said something about HDF5, but that's not your responsibility!
Note I'm using 3.2.2 on bullseye.
Thanks for reading.
Regards, Phil.
--- End Message ---
--- Begin Message ---
tags 1016870 upstream wontfix
thanks
On 8/8/22 16:53, Phil Endecott wrote:
Searching, I found that GDAL does support KEA format since version
2.0:
https://gdal.org/drivers/raster/kea.html
This driver is not enabled because libkea is not in Debian.
From the configure output:
Kea support: no
https://buildd.debian.org/status/fetch.php?pkg=gdal&arch=amd64&ver=3.2.2%2Bdfsg-2%2Bdeb11u1&stamp=1639258047&raw=0
It would also have been useful if https://gdal.org/drivers/raster/kea.html
had said something about HDF5, but that's not your responsibility!
Please file your request upstream:
https://github.com/OSGeo/gdal/issues
Kind Regards,
Bas
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