This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Chris, I ran "grep TOPO imgtyp.tbl" in $GEMTBL/sat/ and here is the result. Is this different on your end? TOPO TOPO_DEM5 0 95 33 32768 1 upc_dem5.tbl TOPO VIS 52 226 11 1 1 upc_topo.tbl TOPO TOPO 0 255 11 2 1 upc_dem30.tbl TOPO TOPO_DEM5 0 94 11 4 1 upc_dem5.tbl TOPO TOPO_DEM5 0 95 33 16 1 upc_dem5.tbl !TOPO TOPO_DEM5 0 95 33 32768 1 upc_dem5.tbl !TCOMP IR_TOPO 0 94 11 2**6 1 upc3_tcomp.tbl RCOMP RAD_TOPO 0 94 11 2**6 1 upc3_rcomp.tbl TOPO TOPO_DEM5 0 95 33 16 1 upc_hires.tbl TOPO VIS 52 226 11 1 1 upc_topo.tbl > Mike, > > One of my colleagues and I tried running GDPLOT2 on the gd2img.gini > file, however an error occurred noting that there is not entry in the > table "imgtyp.tbl" which it needs to display the image. Would you be > able to provide us the entry for imgtyp.tbl table? We hope this will be > the key in us getting it to work on our end. > > Thanks. > > --Chris > > Unidata GEMPAK Support wrote: > > Hi Chris, > > > > I'm going to go back to your initial message. Now that I have test.grd and > > nam20_2008053012f012 I've been able to recreate exactly what you've > > attempted to do with gd2img. > > > > I produced gd2img.gini and then ran GDPLOT2 as follows: > > > > GDFILE = test.grd > > GDATTIM = LAST > > GLEVEL = 0 > > GVCORD = NONE > > PANEL = 0 > > SKIP = 0 > > SCALE = 0 > > GDPFUN = TMPC > > TYPE = C > > CONTUR = 0 > > CINT = 0 > > LINE = 3 > > FINT = 0 > > FLINE = 10-20 > > HILO = > > HLSYM = > > CLRBAR = > > WIND = BM1 > > REFVEC = > > TITLE = 1 > > TEXT = 1 > > CLEAR = YES > > GAREA = us > > IJSKIP = > > PROJ = sat > > MAP = 1 > > MSCALE = 0 > > LATLON = > > DEVICE = XW > > STNPLT = > > SATFIL = gd2img.gini > > RADFIL = > > IMCBAR = > > LUTFIL = > > STREAM = > > POSN = 0 > > COLORS = 1 > > MARKER = 0 > > GRDLBL = 0 > > FILTER = YES > > > > which correctly plotted the topographic image (see attached image) > > > > So the first thing we need to check is that if you run GD2IMG and then > > GDPLOT2 exactly as I have, and with the same files, can you produce the > > same result? If so then you may have just run into a problem displaying > > the data (you mentioned you were using GPMAP - I would recommend using > > GDPLOT2 instead). If not then the problem most likely rests with how > > GD2IMG was attached to your current NAWIPS build. > > > > So please try this and let me know the results. > > > > Michael James > > Unidata User Support > > > > > > > > > > > >> Mike, > >> > >> I have uploaded a zipped/tarred set of files on the RAMADDA data > >> repository that you provided me with. Let me know if you have trouble > >> finding or accessing the files. Again many thanks for working on this > >> problem for us. > >> > >> --Chris > >> > >> Unidata GEMPAK Support wrote: > >> > >>> Hi Chris, > >>> > >>> I did not receive a response from you since my reply on March 16 - it's > >>> possible that attachments kept the email from being processed on my end. > >>> > >>> If you still have the test.grd and the resulting gini file from the below > >>> gd2img run, you can upload them to the RAMADDA data repository at > >>> > >>> http://motherlode.ucar.edu/repository/alias/gempakuploads/ > >>> > >>> and I'll take a look at the problem. > >>> > >>> Best, > >>> > >>> Michael James > >>> > >>> > >>> > >>> > >>> > >>>> Hi Mike, > >>>> > >>>> Its been about 2 months since I last heard from you. I was wondering if > >>>> you had received any of my follow-up emails since then? One of them > >>>> contained the files you were interested in acquiring. If you could let > >>>> me know what the status is that would be greatly appreciated. > >>>> > >>>> Thanks. > >>>> > >>>> --Chris Warren > >>>> > >>>> ------------------------------ > >>>> Christopher Warren > >>>> Physical Scientist > >>>> NOAA NESDIS Satellite Analysis Branch > >>>> > >>>> > >>>> > >>>> Unidata GEMPAK Support wrote: > >>>> > >>>> > >>>>> Hi Chris, > >>>>> > >>>>> I'm currently working on an answer for you, but I think it would help > >>>>> if you could send me the gini file produced by gd2img. > >>>>> > >>>>> Thanks, > >>>>> > >>>>> Michael James > >>>>> Unidata User Support > >>>>> > >>>>> > >>>>> > >>>>> > >>>>>> UNIDATA GEMPAK Support Team: > >>>>>> > >>>>>> I'm looking for some assistance with the gd2img program, if possible. > >>>>>> I > >>>>>> would like to utilize the gd2img program to ultimately convert > >>>>>> model-generated satellite brightness temperature grid data into image > >>>>>> format....and have a few questions. Our operational version of GEMPAK > >>>>>> does not include this code. So, I downloaded the latest Unidata GEMPAK > >>>>>> version and have managed to compile/link the gd2img code (though I did > >>>>>> comment out the png calls...I guessed that this wasn't critical and we > >>>>>> don't have png libraries). I'm trying to initially test it on NAM 20km > >>>>>> topo grids (since a TOPO entry is already in the nex2gini.tbl) and thus > >>>>>> far haven't been able to view the output (via gpmap). Here is how I'm > >>>>>> running gd2img... > >>>>>> > >>>>>> GDATTIM = LAST > >>>>>> GDFILE = test.grd (this grid contains the NAM 20km HGHT > >>>>>> parameter...renamed to TOPO.) This is an LCC grid. > >>>>>> GLEVEL = 0 > >>>>>> GVCORD = NONE > >>>>>> GFUNC = TOPO > >>>>>> SCALE = 0 > >>>>>> PROJ = > >>>>>> GRDAREA = > >>>>>> KXKY = > >>>>>> CPYFIL = nam20_2008053012f012 (same navigation, projection as > >>>>>> test.grd) > >>>>>> SATFIL = > >>>>>> CALINFO = > >>>>>> WMOHDR = > >>>>>> > >>>>>> It appears to be reading the grid fine...and uses the TOPO entry in the > >>>>>> nex2gini.tbl. And I do get a .gini file...though it seems small at > >>>>>> 100KB. I've compared octal dumps of my output versus other topo gini > >>>>>> files that are valid and displayable, and I'm suspecting there could be > >>>>>> some problem, but not sure what. So I'd like to display it (if the > >>>>>> file > >>>>>> is even displayable) or in some way verify the output is correct. I > >>>>>> know I need to modify the imgtyp.tbl file and add an entry, and it's > >>>>>> here that I'm struggling. How do I determine the settings for the > >>>>>> entry > >>>>>> in this table? Also, do I need some input for CALINFO and/or > >>>>>> WMOHDR...or are blank entries OK? And once all is said and done, can I > >>>>>> test it with any lookup table that renders topo data? > >>>>>> > >>>>>> Thanks in advance for any help...and if you need more information, > >>>>>> please let me know. > >>>>>> > >>>>>> --Chris Warren > >>>>>> > >>>>>> ------------------------------ > >>>>>> Christopher Warren > >>>>>> Physical Scientist > >>>>>> NOAA NESDIS Satellite Analysis Branch > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>> Ticket Details > >>>>> =================== > >>>>> Ticket ID: ASF-974423 > >>>>> Department: Support GEMPAK > >>>>> Priority: Normal > >>>>> Status: Open > >>>>> > >>>>> > >>>>> > >>>>> > >>> Ticket Details > >>> =================== > >>> Ticket ID: ASF-974423 > >>> Department: Support GEMPAK > >>> Priority: Normal > >>> Status: Open > >>> > >>> > >>> > >> -- > >> ------------------- > >> Christopher Warren > >> Physical Scientist > >> NOAA NESDIS - Satellite Analysis Branch > >> Tel: (301) 763-8444 > >> > >> > >> > >> > > > > > > Ticket Details > > =================== > > Ticket ID: ASF-974423 > > Department: Support GEMPAK > > Priority: Normal > > Status: Open > > > > ------------------------------------------------------------------------ > > > > Ticket Details =================== Ticket ID: ASF-974423 Department: Support GEMPAK Priority: Normal Status: Open