The document discusses the HDF5 high-level APIs aimed at simplifying the use of HDF5 by providing more operations per call and enforcing standard object representations. It highlights the completion of several APIs, including lite and image, while noting that table and other functionalities are still in development. Acknowledgements are made for support received from NASA and other agencies for the research reported.

1. HDF5 High Level and Lite
Libraries
HDF and HDF-EOS
Workshop VII
September 23-25, 2003
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2. High level APIs
• Make HDF5 easier to use
– More operations per call than the normal HDF5 API
• Encourage standard ways to store objects
– Enforce standard representation of objects in HDF5
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3. High level APIs
• Lite – done
– Same as HDF5, but simpler
• Image – done
– Interprets dataset as image/palette
– 2-D raster data like HDF4 raster images
• Table – partly done
– Interprets dataset as “tables” – collections of records
– Insert, delete records or fields
– Future: sort and search
• Dimension scale – in the works
• Unstructured grids – in the works
• http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/
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4. Acknowledgement
• This report is based upon work supported in part by a
Cooperative Agreement with NASA under NASA grant
NAG 5-2040 and NAG NCCS-599. Any opinions, findings,
and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily
reflect the views of the National Aeronautics and Space
Administration.
• Other support provided by NCSA and other sponsors and
agencies
• (http://hdf.ncsa.uiuc.edu/acknowledge.html).
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