Re: HDF_SD_ADDDATA problem

Hello again,

Good news: I've discovered a workaround! Inexplicably, if you use
getdata to get the data and adddata to add back the data BETWEEN THE
ONE SET OF HDF_SD_START and HDF_SD_END calls, then this seems to
"unlock" the SDS, meaning you can then use the above code (HDFeditSDS)
to write to the data as normal (by normal, I mean as if it were an
unsubsetted MODIS L1B file).

Here's the code:

========================================
FUNCTION HDFunlockSDS, filename, sdsname

sdfileid=hdf_sd_start(filename, /rdwr)

index = HDF_SD_NAMETOINDEX(sdFileID, sdsname)

thisSdsID = HDF_SD_SELECT(sdFileID, index)

HDF_SD_GETDATA, thisSdsID, sds

HDF_SD_AddData, thisSdsID, sds

HDF_SD_ENDACCESS, thisSdsID

hdf_sd_end, sdfileid

return, sds

END
======================================

Any thoughts, James or anyone else? I have no idea why this works, but
it does!

Cheers,
Alex.