I'm trying to read some small slabs from a database and am getting invalid data
returned.
Opening the dataset in HDFView also shows incorrect values.
Trying it via the utilities, this command shows a similar failure:
h5dump -p -d "/Regions/Region1/Dataset" -s "175,0,0" -c "1,5,5" bad.h5
Output:
HDF5 "bad.h5" {
DATASET "/Regions/Region1/Dataset" {
DATATYPE H5T_IEEE_F32LE
DATASPACE SIMPLE { ( 266, 196, 1786 ) / ( H5S_UNLIMITED,
H5S_UNLIMITED, H5S_UNLIMITED ) }
STORAGE_LAYOUT {
CHUNKED ( 1, 1, 1786 )
SIZE 219264490 (1.699:1 COMPRESSION)
}
FILTERS {
COMPRESSION DEFLATE { LEVEL 6 }
}
FILLVALUE {
FILL_TIME H5D_FILL_TIME_IFSET
VALUE 0
}
ALLOCATION_TIME {
H5D_ALLOC_TIME_INCR
}
SUBSET {
START ( 175, 0, 0 );
STRIDE ( 1, 1, 1 );
COUNT ( 1, 5, 5 );
BLOCK ( 1, 1, 1 );
DATA {
(175,0,0): 5.00226e-011, 4.82024e+030, 7.46402e-007,
1.81771e+031, 6.82915e+022,
(175,1,0): 5.02496e-011, 4.82024e+030, 7.46402e-007,
1.81771e+031, 6.82915e+022,
(175,2,0): 5.02496e-011, 4.82024e+030, 7.46402e-007,
1.81771e+031, 6.82915e+022,
(175,3,0): 5.02496e-011, 4.82024e+030, 7.46402e-007,
1.81771e+031, 6.82915e+022,
(175,4,0): 5.02496e-011, 4.82024e+030, 7.46402e-007,
1.81771e+031, 6.82915e+022
}
}
}
}
Expanding the selection slight gives the correct data:
h5dump -p -d "/Regions/Region1/Dataset" -s "174,0,0" -c "2,5,5" bad.h5
Output:
HDF5 "bad.h5" {
DATASET "/Regions/Region1/Dataset" {
DATATYPE H5T_IEEE_F32LE
DATASPACE SIMPLE { ( 266, 196, 1786 ) / ( H5S_UNLIMITED, H5S_UNLIMITED,
H5S_UNLIMITED ) }
STORAGE_LAYOUT {
CHUNKED ( 1, 1, 1786 )
SIZE 219264490 (1.699:1 COMPRESSION)
}
FILTERS {
COMPRESSION DEFLATE { LEVEL 6 }
}
FILLVALUE {
FILL_TIME H5D_FILL_TIME_IFSET
VALUE 0
}
ALLOCATION_TIME {
H5D_ALLOC_TIME_INCR
}
SUBSET {
START ( 174, 0, 0 );
STRIDE ( 1, 1, 1 );
COUNT ( 2, 5, 5 );
BLOCK ( 1, 1, 1 );
DATA {
(174,0,0): 5596.14, 5155, 7550.53, 8183.16, 6550.84,
(174,1,0): 4673.81, 6764.91, 2571.05, 424.237, 3440.45,
(174,2,0): 1976.77, 2333.76, 5337.73, 5999.94, 3304.85,
(174,3,0): 1500.24, 2544.14, 5753.82, 5693.52, 3100.93,
(174,4,0): 2546.38, 2239.06, 5786.03, 2432.32, 447.349
(175,0,0): 2560, 2239.06, 5786.03, 2432.32, 447.349,
(175,1,0): 2560, 2239.06, 5786.03, 2432.32, 447.349,
(175,2,0): 2560, 2239.06, 5786.03, 2432.32, 447.349,
(175,3,0): 2560, 2239.06, 5786.03, 2432.32, 447.349,
(175,4,0): 2560, 2239.06, 5786.03, 2432.32, 447.349
}
}
}
}
Any idea on when I'm doing wrong or how to get the proper data?
Thanks,
Peter Steinberg
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