Martin,
Martin Raspaud wrote:
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Hi,
I'm trying to access Modis data (Terra) with gdal through the python API.
I'm following the gdal tutorial http://www.gdal.org/gdal_tutorial.html, but get
stuck at the rasterband reading part, with an error:
Traceback (most recent call last):
File "gdaltest.py", line 24, in <module>
print 'Band Type=',gdal.GetDataTypeName(band.DataType)
AttributeError: 'NoneType' object has no attribute 'DataType'
which means that the line:
band = dataset.GetRasterBand(1)
did return None.
Does anyone have an idea of what is going on ?
Try to use gdal.Open() on a subdataset and then call GetRasterBand(), example:
dataset =
gdal.Open('HDF4_EOS:EOS_SWATH:"/local_disk/data/satellite/terra/MOD021KM.A2005161.0920.005.2005161194747.hdf":MODIS_SWATH_Type_L1B:EV_1KM_RefSB')
band = dataset.GetRasterBand(1)
See http://gdal.org/frmt_hdf4.html for more details on HDF subdatasets.
I join the gdaltest.py and the dump of the file from gdalinfo (removed some
lengthy metadata).
Thanks,
Martin
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Regards,
Ivan
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