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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Unidata folks, I've got NAWIPS 5.6 running on hp-ux here, and I've been creating gif images from gdplot and gdthgt regularly (both from the command line and within .csh scripts--not from a cron), but recently, the programs will have executed successfully, but no gif image (dev=gf|/usr...etc.) ever actually gets created in the directory. This has been a chronically recurring problem, but I am not able to pin down why or even what's going wrong. There are no error messages; gpend runs successfully; xw, ps, tiff device drivers all work to the correct output files; I have had success creating many gifs in the past, but I suspect something on my hp machine has changed. Could this be some environmental variable definition which is incorrect, or could it be a permissions problem? (but that would send an error message while running the program, wouldn't it?) If it helps at all, X is running on the machine, and we are using the CDE interface. I could use imagemagick I suppose, to convert from postscript files, but why bother when the gf driver has worked in the past? I'm out of patience with this---I believe that the gf driver had problems in previous gempak versions, but I know it's been fixed. I wish I knew why it was working once, but not tonight. Any help you kind folks can offer is greatly appreciated. Thanks. Dan St. Jean NWS Burlington VT
begin:vcard n:St. Jean;Dan tel;fax:802.660.0705 tel;work:802.658.0207 x-mozilla-html:FALSE org:DOC/NOAA/National Weather Service;WFO Burlington VT version:2.1 email;internet:address@hidden title:Senior Meteorologist adr;quoted-printable:;;Burlington International Airport=0D=0A1200 Airport Road=0D=0A;South Burlington;VT;05403; fn:Dan St. Jean end:vcard