Peter Willis wrote:
Hello,
Where can I find the specification for the
'DATA' entry in mapserver MAP files where
HDF files are being used?
I am mostly interested in using these in
the context of WCS.
Here is my current non-working example of an HDF
file test in my current WCS map file:
...
DATA 'HDF4:/public/A20081932008200.L3m_8D_CHLO_9.hdf://l3m_data'
Peter,
You need to use the gdalinfo command on the .hdf base file to get
a list of subdatasets within the file. If the gdalinfo reports something
like:
SUBDATASET_16_NAME=HDF4_EOS:EOS_SWATH:"MOD07_L2.A2000110.0220.002.2000196104217.hdf":mod07:Retrieved_Moisture_Profile
SUBDATASET_16_DESC=[20x406x270] Retrieved_Moisture_Profile mod07 (16-bit
integer)
SUBDATASET_17_NAME=HDF4_EOS:EOS_SWATH:"MOD07_L2.A2000110.0220.002.2000196104217.hdf":mod07:Retrieved_Height_Profile
SUBDATASET_17_DESC=[20x406x270] Retrieved_Height_Profile mod07 (16-bit
integer)
Then you might put the following in your .map file:
DATA
'HDF4_EOS:EOS_SWATH:"MOD07_L2.A2000110.0220.002.2000196104217.hdf":mod07:Retrieved_Moisture_Profile'
The key is to use _NAME portion of the subdatasets reported by gdalinfo.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
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