Thank you for your response, Jukka.
That is interesting. I set cmake to build hdf4, cmake sees it and it
does not throw errors during the build. In fact, I see:
[ 38%] Built target gdal_HDF4
but the command you gave gives not HDF4
gdalinfo --format hdf4
(should be "formats" instead?)
gdalinfo --formats hdf4
this retrieves a long list, but no HDF5:
gdalinfo --formats | grep hdf
HDF5 -raster,multidimensional raster- (rovs): Hierarchical Data
Format Release 5 (*.h5, *.hdf5)
on the other hand
gdal-config --formats
gives:
gdal-config --formats
MEM vrt HDF4 MEM
So it should be there?
This is confusing. Will keep looking.
Thank you for your time, Jukka!
Hernán
Den 2024-11-11 kl. 12:45, skrev Rahkonen Jukka:
Hi,
Have you checked with gdalinfo if you have managed to build the HDF4
driver?
gdalinfo --format hdf4
Your test file opens for me with GDAL from OSGeo4W.
-Jukka Rahkonen-
*Lähettäjä:* gdal-dev <gdal-dev-boun...@lists.osgeo.org> *Puolesta
*Hernán De Angelis via gdal-dev
*Lähetetty:* maanantai 11. marraskuuta 2024 13.37
*Vastaanottaja:* gdal-dev@lists.osgeo.org
*Aihe:* [gdal-dev] GDAL, HDF4 and MODIS L1B data
I recently compiled a minimal GDAL (3.10) with HDF4 support (using HDF
4.3.0) for processing MODIS L1B data. However, the resulting command
line tools cannot understand the format. Perhaps I am doing something
wrong, or missing something important, or both.
Do I understand correctly that MODIS L1B in HDF-EOS format should be
readable by GDAL compiled with HDF4 support without additional libraries?
Thanks for any hint.
Hernán
Workflow:
Build HDF4 (4.3.0)
./configure --prefix=/home/hernan/project --disable-netcdf
--disable-fortran --enable-shared --disable-static
make
make install
Build GDAL (3.10) with HDF4 support
ccmake , make, ... etc
/home/hernan/project/bin/gdal-config --formats
MEM vrt HDF4 MEM
Test
/home/hernan/project/bin/gdalinfo
MOD02QKM.A2024307.1325.061.2024308012941.hdf
ERROR 4: `MOD02QKM.A2024307.1325.061.2024308012941.hdf' not recognized
as being in a supported file format.
gdalinfo failed - unable to open
'MOD02QKM.A2024307.1325.061.2024308012941.hdf'.
Testdata if someone wants to try (warning: 150 Mb!):
https://www.geonatura.se/lastkaj/index.php/s/TCS35pjANsEtSyV
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