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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.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.
Hi John! I hope that you can provide pure Java netCDF-4 / HDF5 writer in NetCDF-Java library. BTW, is Nujan [1] dead? [1] http://www.ral.ucar.edu/~steves/nujan.html From: netcdfgroup-bounces@xxxxxxxxxxxxxxxx [mailto:netcdfgroup-bounces@xxxxxxxxxxxxxxxx] On Behalf Of John Caron Sent: Thursday, November 06, 2014 5:52 PM Cc: netcdfgroup@xxxxxxxxxxxxxxxx List Subject: Re: [netcdfgroup] what is status of netCDF3 vs netCDF4? Hi all: I thought I would clarify one small piece of the conversation: Unidata supports two libraries, one in C and one in Java. All other Unidata netCDF libraries are wrappers around the C library (notably C++, F77, F90, and Python) , or the Java Library (notably matlab). The Java library supports reading netCDF-4 files in pure Java. For writing netCDF-4, it requires the netCDF4 C library. A pure Python library for netcdf-3 would be easy and I'm sure has already been done. I predict no one will ever again be foolhardy enough to write another netCDF4 / HDF5 library that doesnt use the netCDF4 / HDF5 C libraries. Regards, John On Thu, Nov 6, 2014 at 11:04 AM, Chris Barker <chris.barker@xxxxxxxx<mailto:chris.barker@xxxxxxxx>> wrote: Quick comment on this: a previous post seemed to imply that Python was supported. I think the C and Fortran libraries should be top priority, the netCDF4 python package is a wrapper around the C lib. So it is as robust as the C lib, but also just as hard to compile! I agree that C and Fortran are key (actually primarily C -- you should be abel to call C from Fortran anyway) And C gets you the ability to wrap for a whole pile of higher-level languages (Julia, Octave, R, etc....) That leaves us with the Java world -- which does not map so easily to C What about .net, by the way? I don't care, but maybe some folks do ;-) I have no idea how hard it is to call C from .net languages... -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959<tel:%28206%29%20526-6959> voice 7600 Sand Point Way NE (206) 526-6329<tel:%28206%29%20526-6329> fax Seattle, WA 98115 (206) 526-6317<tel:%28206%29%20526-6317> main reception Chris.Barker@xxxxxxxx<mailto:Chris.Barker@xxxxxxxx> _______________________________________________ netcdfgroup mailing list netcdfgroup@xxxxxxxxxxxxxxxx<mailto:netcdfgroup@xxxxxxxxxxxxxxxx> For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
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