Re: FW: 20050707: netCDF Decoders - Degribbing files

• To: Zachary Kurt A Contr AFWA/SCSA <kurt.zachary.ctr@xxxxxxxxxxx>
• Subject: Re: FW: 20050707: netCDF Decoders - Degribbing files
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Mon, 11 Jul 2005 14:17:22 -0600 (MDT)

On Fri, 8 Jul 2005, Zachary Kurt A Contr AFWA/SCSA wrote:

> Robb, I'm working with Brandon on trying out your Java Grib tool and we are
> running into this little snag.  When we try to do a dump of the Grib file we
> receive this exception:
> NotSupportedException : ucar.grib.NotSupportedException: table for center:
> 57 subCenter: 1 number: 2
>
yes, we are still adding tables for all the centers. i created a table and
included it in the distribution.  it's call gwc_2.tab if you want to look
at it.  the new distribution is located in the Unidata's ftp dir

 pub/decoders/GribJava.tar.gz


robb...



> I read the message at
> http://my.unidata.ucar.edu/content/support/help/MailArchives/thredds/msg0037
> 7.html and I'm not sure what the exception indicates since the Javadocs for
> it are very basic.  Is the problem with the center or with the sub center?
> I looked in the tables.txt file and noticed that center 57 was listed as
> U.S. Air Force - Global Weather Center, center 57 is now Air Force Weather
> Agency (Air Fore Weather Center was changed to AFWA).  Is this causing a
> problem?  I didn't see a table for sub centers, am I overlooking something?
> Do we need to make our own tables?
>
> Sorry to flood you with questions and we appreciate any help you can give
> us!  I'll be gone for the next 2 weeks but A1C Nelson will be available so
> please include him in any responses.
>
> Thanks!
>
> Kurt A. Zachary
> Software Engineer, Northrop Grumman
> Operational Applications
> 232-4386
>
> -----Original Message-----
> From: Nelson Brandon K A1C AFWA/SCSA
> Sent: Friday, July 08, 2005 9:23 AM
> To: Zachary Kurt A Contr AFWA/SCSA
> Subject: FW: 20050707: netCDF Decoders - Degribbing files
>
> Also when I try and do a dump on the Grib file it gives this msg...
>
> NotSupportedException : ucar.grib.NotSupportedException: table for center:
> 57 subCenter: 1 number: 2
>
> You might email him with that msg and see what he says
>
> -----Original Message-----
> From: Robb Kambic [mailto:rkambic@xxxxxxxxxxxxxxxxxxxxxxxx]
> Sent: Thursday, July 07, 2005 3:11 PM
> To: Brandon Nelson
> Cc: support-thredds; decoders
> Subject: Re: 20050707: netCDF Decoders - Degribbing files
>
>
> On Thu, 7 Jul 2005, Unidata Support wrote:
>
> >
> > ------- Forwarded Message
> >
> > >To: support-decoders@xxxxxxxxxxxxxxxx
> > >From: "Brandon Nelson" <nelsonb@xxxxxxxxxxx>
> > >Subject: netCDF Decoders - Degribbing files
> > >Organization: Air Force Weather Agency
> > >Keywords: 200507071800.j67I0wA2001404 netCDF decoders
> >
> > Institution: USAF HQ AFWA/SCSA
> > Package Version: unknown
> > Operating System: Windows XP Pro
> > Hardware Information: unknown
> > Inquiry: We are trying to figure out how to use your java classes to
> degrib several files.  Do you have a quick example to lead us in the right
> direction? We are using the ucar.grib.grib1 files.
> Thank you for your time.
> >
>
> Brandon,
>
> After setting your CLASSPATH to find the the jar files. in the run file
> there are samples like.
>
>
> java -Xmx256m ucar/grib/grib1/Grib1Dump data/RUC.wmo | more
>
> java -Xmx256m ucar/grib/grib1/Grib1Indexer data/RUC.wmo | more
>
> in the IndexFormat.txt file it explains the index format. the index is
> used for quick data extraction.
>
> java -Xmx256m ucar/grib/grib1/Grib1GetData data/RUC.wmo 110 1 true | more
>
> the "110 1 true" are the BmsOrGdsOffset DecScale BmsExists fields from the
> index file. This permits the data extractor to position itself in file to
> get the data and to scale it correctly.
>
> the data/RUC.wmo is a locate test file, you can use any grib1 file for
> your tests.
>
> the grib.jar package will also decode grib2 files.
>
>
> please note:
>
> the source code is still in beta development so any bugs that you find
> would be helpfull to me to know about. there are some extra files in
> the tar, don't be concerned about them. the code is GribJava.tar.gz and it
> is located at:
>
> % ftp www.unidata.ucar.edu
> % cd pub/decoders
> % get GribJava.tar.gz
>
> i just made a new file today with the latest changes.
>
>
> robb...
>
>
> > V/r
> > Brandon K. Nelson, A1C USAF
> > Communications/Computer Systems Programmer
> > Air Force Weather Agency
> > (402) 232-0159
> > nelsonb@xxxxxxxxxxx
> >
> >
> >

==============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx                   WWW: http://www.unidata.ucar.edu/
==============================================================================