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20020808: GEMVIS and Ancient Editions of GEMPAK
- Subject: 20020808: GEMVIS and Ancient Editions of GEMPAK
- Date: Thu, 08 Aug 2002 15:49:39 -0600
Bill,
The underlying GEMPAK file format has not changed significantly. But,
some additions in the newer code include machine number additions for Linux
that older code would not be able to use if the GEMPAK file was created by a
Linux machine for example.
If the only road blocks you are having are gr_file and cfl_scnd,
then I can suggest the following:
1) gr_file was renamed dg_file in 1996:
try renaming your gr_file calls to dg_file and
double check the parameters being passed just in case the number/order
of parameters has changed.
2) The cgemlib.a library includes cfl_scnd. This routine is used by the
current GEMPAK fl_mfls routine (probably called by the grid file open
routines). Your old linking probably did not include cgemlib.a, so you
should add that to the list of GEMPAK libraries you are using
(and place after the gemlib.a reference since one pass compilers
will need to resolve the cfl_scnd reference after the gemlib routine
which calls it).
If necessary, I do have the GEMPAK 5.4 distribution available....but
hopefully for a simple converter you can update the calls to use
the new library.
Unfortunately, I will be in San Antonio next week for the
AMS conferences on Severe Local Storms and NWP, so I won't be
available while you are in town. But, we should be able to
get you something to work.
Steve Chiswell
Unidata User Support
>From: "Capehart, William J" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200208082036.g78KajK03052
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>Thursday, 08 August 2002
>
>To whom it may concern:
>
>Here is an interesting one for you!
>
>We are working with vis5d+ as both a research and teaching tool in addition
>to the garp/nawips suite. One of the things we are interested in doing is
>putting a few choice Comet case studies into vis5d and vGeo (a package based
>in an immersive version of vis5d). However, the data is in gempak format at
>present.
>
>The Vis5D+ program has with it the source code from the old (1995) NCEP
>program "gemvis" written by Keith Brill (He is no longer able to support it
>and regretted that he was unable to assist).
>
>The code requires access to the gemvis.o libraries and we have correctly
>sourced them in the scripts required to compile gemvis. However, we've
>tried to compile it but have come across a number of roadblocks ending at
stopping point in which the compiler is attempting to access objects
>"gr_file_" and "cfl_scnd_".
>
>Given the time that has elapsed since the writing of gemvis and the most
>recent incarnations of the gempak suite of packages we are curious to try
>compiling gemvis by sourcing an earlier version of Gempak.
>
>Which brings us to the questions I'd like to ask:
>
>1) has the gempak format changed significantly over the years to make
>any potential usability "gemvis" a null-and-void issue?
>2) Are there any old version of gempak software (c. 1995) available
>that we could acquire for the sole purpose of compiling that code?
>3) Is there an option for translating gempak data to vis5d that we are
>unaware of?
>
>Additionally I will be at the Foothills Lab next week (12-16 August) for a
>conference, so if this requires direct contact I should be across the street
>(My mobile number is below).
>
>Cheers and Thanks!
>================================================================
>Bill Capehart <address@hidden> Assistant Professor
>Institute of Atmospheric Sciences Land Surface Processes
>213 Mineral Industries Building Hydrometeorology
>South Dakota School of Mines and Technology Ph: +1-605-394-1994
>501 East Saint Joseph Street Fax: +1-605-394-6061
>Rapid City, SD 57701-3995 Mobile: +1-605-484-5692
>==== http://www.hpcnet.org/sdsmt/personnel/wcapehart/about
><http://www.hpcnet.org/sdsmt/personnel/wcapehart/about> =====
>
>
>
>
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><TITLE>GEMVIS and Ancient Editions of GEMPAK</TITLE>
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>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">Thursday, 08 =
>August 2002</FONT></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">To whom it may =
>concern:</FONT></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">Here is an =
>interesting one for you!</FONT></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">We are working =
>with vis5d</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana">+</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"> as both a</FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">research</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"></FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">and teaching tool in addition to</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"> the</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"> garp/nawips</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"> suite</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">. One of the things we are interested in doing =
>is putting a few choice Comet case studies into vis5d and vGeo (a =
>package based in an immersive version of vis5</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">d</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">)</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">.</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"> However, the data</FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">is in gempak format at =
>present. </FONT> </P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">The =
>Vis5D+</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">program has with =
>it the</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">source code from =
>the old (19</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">9</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">5)</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> =
>NCEP</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">program</FONT> =
><FONT COLOR=3D"#000066" FACE=3D"Verdana">"</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">gemvis</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">"</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> =
>written by</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">Keith</FONT> =
><FONT COLOR=3D"#000066" FACE=3D"Verdana">Brill</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"></FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">(</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana">He is =
>no longer able to support it and</FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">regretted that he was unable to assist</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">)</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">.</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"> </FONT> </P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">The code =
>requires</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">access =
>to</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">the</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"></FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">gemvis.o libraries</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"> and we have correctly sourced them</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"> in the scripts required to compile =
>gemvis. However,</FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">w</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">e</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">'</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana">ve =
>tried to compile it but have come across a number of roadblocks ending =
>at stopping point</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> in =
>which the compiler is attempting to access</FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">objects</FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">"</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">gr_file</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">_</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">"</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> =
>and</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">"</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">cfl_scnd_</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">"</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">. </FONT></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">Given</FONT> =
><FONT COLOR=3D"#000066" FACE=3D"Verdana">the</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"></FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">time that has elapsed since the writing of gemvis and =
>the most recent incarnations of the gempak suite of packages we are =
>curious to try compiling gemvis by sourcing a</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">n earlier version of</FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">Gempak.</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"> </FONT> </P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">W</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">h</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">ich</FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">brings us to the questions I</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">'</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">d like to ask:</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"> </FONT></P>
>
><P><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">1) </FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">has the gempak format changed =
>significantly over the years to make any potential usability</FONT> =
><FONT COLOR=3D"#000066" FACE=3D"Verdana">"</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">gemvis</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">"</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> a =
>null-and-void issue?</FONT></P>
>
><P><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">2) </FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">A</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">re</FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">there any old version of gempak software</FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">(c. 1995) available that we could =
>acquire for the sole purpose of compiling that code</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">?</FONT></P>
>
><P><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">3) </FONT> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">Is there an option for translating =
>gempak data to vis5d that we are unaware of?</FONT>
></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">Additionally I =
>will be at</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> =
>the</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> =
>Foothills</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> =
>Lab</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> next week =
>(12</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana">-16</FONT><SUP><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana"></FONT></SUP> <FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">August</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">)</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> for =
>a conference, so if this requires direct contact I should be across the =
>street</FONT><FONT COLOR=3D"#000066" FACE=3D"Verdana"> (</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">M</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">y</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana"></FONT> <FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">mobile number is below).</FONT></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Verdana">Cheers =
>and</FONT> <FONT COLOR=3D"#000066" FACE=3D"Verdana">T</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Verdana">hanks</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Verdana">!</FONT></P>
>
><P ALIGN=3DLEFT><A NAME=3D"_MailAutoSig"><FONT COLOR=3D"#000066" =
>SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</FONT></A><=
>FONT COLOR=3D"#000066" FACE=3D"Lucida Sans Typewriter"><BR>
></FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">Bill Capehart =
><address@hidden> </FONT><FONT =
>COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter"> </FONT><FONT COLOR=3D"#000066" SIZE=3D2 =
>FACE=3D"Lucida Sans Typewriter">Assistant</FONT><FONT COLOR=3D"#000066" =
>SIZE=3D2 FACE=3D"Lucida Sans Typewriter"> Professor</FONT><FONT =
>COLOR=3D"#000066" FACE=3D"Lucida Sans Typewriter"><BR>
></FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">Institute of Atmospheric =
>Sciences Land =
>Surface Processes</FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida =
>Sans Typewriter"><BR>
></FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">213 Mineral Industries =
>Building &nbs=
>p; Hydrometeorology</FONT><FONT =
>COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans Typewriter"><BR>
></FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">South Dakota School of Mines and Technology Ph: =
>+1-605-394-1994</FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida =
>Sans Typewriter"><BR>
>501 East Saint Joseph Street</FONT><FONT COLOR=3D"#000066" SIZE=3D2 =
>FACE=3D"Lucida Sans =
>Typewriter"> =
> </FONT><FONT COLOR=3D"#000066" =
>SIZE=3D2 FACE=3D"Lucida Sans Typewriter">Fa</FONT><FONT =
>COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans Typewriter">x: =
>+1-605-394-6061</FONT><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida =
>Sans Typewriter"></FONT><BR>
><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans Typewriter">Rapid =
>City, SD =
>57701-3995 &n=
>bsp; </FONT><FONT COLOR=3D"#000066" SIZE=3D2 =
>FACE=3D"Lucida Sans Typewriter">Mobile: +1-605-484-5692</FONT><BR>
><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">=3D=3D=3D=3D</FONT> <A =
>HREF=3D"http://www.hpcnet.org/sdsmt/personnel/wcapehart/about";><U></U><U=
>><FONT COLOR=3D"#3333CC" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter">http://www.hpcnet.org/sdsmt/personnel/wcapehart/about</FONT>=
></U></A><FONT COLOR=3D"#000066" SIZE=3D2 FACE=3D"Lucida Sans =
>Typewriter"> =3D=3D=3D=3D=3D</FONT><FONT COLOR=3D"#000066" =
>FACE=3D"Lucida Sans Typewriter"> </FONT></P>
>
><P ALIGN=3DLEFT><FONT COLOR=3D"#000066" FACE=3D"Lucida Sans =
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