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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
In a note to the ncml@xxxxxxxxxxxxxxxx mailing list about the announcement of a new version of NcML http://www.unidata.ucar.edu/packages/netcdf/ncml/ Roy Mendelssohn wrote: > A lot of these features look very interesting, particularly the > Datasets part that would allow aggregation across files. What is > disappointing is that it only appears to be available in the Java > API. What percent of NetCDF files right now are set up or accessed > by people using the Java API? What are the plans for such features > from other languages? > Overall, very intriguing. Although I don't know how to quantify it, the Java netCDF implementation is getting increasing use, partly because of tools that use it to access data in new ways. Some of these tools include - Unidata's IDV (Integrated Data Viewer), an application and framework for visualizing and analyzing geoscience data http://my.unidata.ucar.edu/content/software/IDV/index.html - PMEL's ncBrowse, a graphical netCDF data browser http://www.epic.noaa.gov/java/ncBrowse - NASA Goddard's Panoply for plotting globally gridded data http://www.giss.nasa.gov/tools/panoply/ Tools written using Java netCDF get the benefits of access to virtual netCDF datasets, access to datasets on OPeNDAP servers, standard handling of packed and missing values, and an extended netCDF data model that includes general coordinate systems. We regard the netCDF Java implementation as a way to quickly prototype and refine advanced features and ideas for accessing scientific data. Once a feature is proved useful in the Java interface, we intend to try to move it into the C interface and thus also make it available to users of other language interfaces based on the C interface (Fortran, C++, Perl, Python, Ruby, ... ). The NcML additions to Java netCDF are primary candidates for enhancements to the C interface. We're currently in the process of planning this work, along with the development of netCDF-4. But if you need these enhancements soon, the Java interface can provide them now, and the Java interface is likely to stay ahead of the other interfaces for the foreseeable future. --Russ "One interface to bind them" http://www.unidata.ucar.edu/packages/netcdf/ring2.jpg
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