I may not have asked that question very well. The HDF-EOS Level 2b is
an hdf4 file that contains point data and has a structure that is quite
different from the Level 3 (which I have been able to bring in as a
raster after using HEG to pull a specific object from the file).
If anyone else has the same need, the contents can be pulled out of the
point file using the hdp hdf dumper from the HDF Group
(http://www.hdfgroup.org/hdp.html).
In my case, I wanted a subset of the fields from a specific vdata node
in the hdf structure. The command line I ended up with was
hdp dumpvd -o AMSR_E_L2_Land_V09_200206190754_A.txt -d -i 1 -f
Latitude,Longitude,Soil_Moisture AMSR_E_L2_Land_V09_200206190754_A.hdf
-o ... = output file name
-d = no headers
-i 1 = the index of the vdata
-f ... = the field names
The produced a file that can be read as a table in R.
http://hdfeos.org/software/tool.php#HEG
is appropriate for Level 3 HDF to GeoTIFF
http://www.hdfgroup.org/hdf-java-html/hdfview/
is good for exploring the file structure of many hdf forms
Maybe this will be useful for someone.
Mark
On 06/25/2010 12:43 PM, rick reeves wrote:
Mark, have a look at:
http://www.nceas.ucsb.edu/scicomp/usecases/ReadWriteESRIShapeFiles
hope this helps,
Rick Reeves
On 6/25/2010 9:40 AM, Mark Connolly wrote:
I am trying to load point data into R, but am having no luck. Does
rgdal support these data sets?
Thanks,
Mark Connolly
Master of Science Program
Department of Soil Science
North Carolina State University
PO Box 7619
Raleigh, North Carolina 27695-7619
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