[GEMPAK #WAE-500163]: Gempak PNG satellite image

Jamie,

Make sure your script sources the GEMPAK Gemenviron file, such as:
source /home/gempak/Gemenviron

The source command in csh will load the environmental variables defined in that 
Gemenviron file, 
and add the executable directory containing the GEMPAK programs to your path.

The error message below indicates that your executable path does not have the 
GEMEXE location
defined which leans to the GPLT program not being found. You will also need to 
ensure that
your DISPLAY environmental variable is set and you have an X display which your
script can use (eg, if you are running from cron, you
may need to be running Xvfb so that the cron can talk to some display when you
are not logged in to the terminal).

Also, I can't see from your script, but make sure you do not call your script 
"png" since
that would conflict with the png executable device driver. Conventionally, call
your script something.csh.

Be sure your script runs "gpend" at the end to close down the message queues 
and output
your png file to disk. You may need to clean up your message queues now with 
the "cleanup -c"
command if you have run your script with failures 

Steve Chiswell
Unidata User Support



> I am running a c shell script that turns the current satellite data into a png
> file. I ran my script and it resulted in this output:
> 
> /home/jlahowet/cronsat/png
> /data/gempak/surface/20070122_sao.gem
> /data/gempak/images/sat/GOES-12/4km/VIS/VIS_20070122_0145
> 0145
> [GEMPLT -101]  NOPROC - Nonexistent executable.
> AREA      Data area                         GAREA
> GAREA     Graphics area                     23.0;-117;50;-63
> SATFIL    Satellite image filename(s)
> /data/gempak/images/sat/GOES-12/4km/VIS/VIS_20070122_0145
> RADFIL    Radar image filename(s)
> IMCBAR    Color/ornt/anch/x;y/ln;wd/freq
> SFPARM    Surface parameter list            blnk
> DATTIM    Date/time                         22/01
> SFFILE    Surface data file                 
> /data/gempak/surface/20070122_sao.gem
> COLORS    Color list                        2;15;25;24;24;23;23;11;32;2
> MAP       Map color/dash/width/filter flag  31/10
> MSCALE    fgc;bgc;mask/units/lat;hide/valu  0
> LATLON    Line color/dash/width/freq/inc/l  6/4/1/2/10;10
> TITLE     Title color/line/title            2/-1/GOES-12 Visible Image
> 22Jan2007 0145 UTC   OU SoM
> CLEAR     Clear screen flag                 yes
> PANEL     Panel loc/color/dash/width/regn   0
> DEVICE    Device|name|x size;y size|color   png | vis_sat.png | 800;600
> PROJ      Map projection/angles/margins|dr  SAT/90.0;-100.0;0.0
> FILTER    Filter data factor                .5
> TEXT      Size/fnt/wdth/brdr/N-rot/just/hw  0.9/13/1/hw
> LUTFIL    Enhancement lookup table filenam  gemtbl:visgray.tbl
> STNPLT    Txtc/txt attr|marker attr|stnfil
> CLRBAR    Color/ornt/anch/x;y/ln;wd/freq|t
> Parameters requested: AREA,GAREA,SATFIL,RADFIL,IMCBAR,SFPARM,DATTIM,SFFILE,
> COLORS,MAP,MSCALE,LATLON,TITLE,CLEAR,PANEL,DEVICE,PROJ,FILTER,TEXT,LUTFIL,
> STNPLT,CLRBAR.
> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP>
> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP>
> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP>
> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP>
> GEMPAK-SFMAP> GEMPAK-SFMAP> GEMPAK-SFMAP> [SFMAP -3]  Fatal error initializing
> GEMPLT.
> Error in message send = 22
> itype, ichan, nwords,0,1343488,3
> [GEMPLT -101]  NOPROC - Nonexistent executable.
> [GPEND -3]  Fatal error initializing GEMPLT.
> 
> I do not know GEMPAK very well at all and I'm not sure how to solve this 
> problem.
> 
> 
> ===================================
> Jamie Lahowetz
> Undergraduate of Meteorology
> University of Nebraska - Lincoln
> P: 402-304-0766
> M:address@hidden
> 
> 


Ticket Details
===================
Ticket ID: WAE-500163
Department: Support GEMPAK
Priority: Normal
Status: Closed