20041203: all at once

Patrick,

I have clipped out below just the part of your question that relates
to GEMPAK. The other parts will be answered by the respnsible persons.


>From: "Patrick L. Francis" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200412031744.iB3HitlI002009

<snip>
>--------------------------------------
>Problem #2 ... Old Chiz script.
>--------------------------------------
>In digging around the email archives, I found a wonderful old chiz script
>that runs flawlessly, with one exception, and some problems. The easy
>question is since gpwatch no longer exists.. .what do we use for watches?

I use gpmap, using the WATCH parameter which uses the files decoded by dcwtch.
An example is:
WATCH    = last|5;2;3|N|Y
(the 5;2;3 are the colors yellow, red, and green for
thunderstorm, tornado and status lines). Note from phelp there
are defaults (but I just like red for tornado watches).

Note that gpmap also has warning capabilities now, but gpwarn
will still work as you have done.

I like your legend.

The way I would create multiple lines of title/text is to run GPMAP
with clear=no and change the title line (there is also a more complicated
gpanot):

## part of old script ##

gpwarn << EOF1
 \$respond = yes
 MAP      = 0
 GAREA    = uslcc
 PROJ     = lcc
 SATFIL   =
 RADFIL   =
 LATLON   = 0
 PANEL    = 0
 TITLE = 2/-2/T-storm & Tornado Warnings (red), Winter Advisory (blue)
 TEXT     = 1/22/1/hw
 CLEAR    = YES
 DEVICE   = gf|watch_boxes.gif
 SVRL     = last
 WWFIL    = nonpcpwarn;winterwarn;floodwarn;tstormwarn;tornadowarn
 WWS      = current
 WWATT    = 120/1440
 OUTPUT   = t
 r

 e
EOF1

gpmap << EOF
   \$respond = yes
   \$mapfil = hipowo.cia
   MAP      = 6/1/1
   GAREA    = uslcc
   PROJ     = lcc
   SATFIL   =
   RADFIL   =
   LATLON   = 0
   PANEL    = 0
   TITLE    = 3/-4/Current Watch Boxes
   TEXT     = 1/22/1/hw
   CLEAR    = no
   DEVICE   = gf|watch_boxes.gif
   WATCH    = last|5;2;3|N|Y
   SVRL =
   r
 

   MAP = 0
   TITLE = 5/-1/Plot Valid Time $YMD
   WATCH =
   r

   MAP = 0
   TITLE = 2/-3/Flood Warnings (green), Non-Precip(magenta)
   r

   e
EOF

Note that by setting MAP=0 and clearing WATCH on subsequent runs,
you save the drawing time of those lines.

In the case of your product, a nice graphical depiction of a legend is
always nice. If I were to redo the script, I'd probably use gpmap's
WARN parameter instead of using gpwarn. 

Now with the WCN and WOU products, you might be able to add a little
more to the graphic as well.





>the other problem is the creation of an appropriate legend.. meaning..
>the results of the script are currently running and located here:
>http://weather.bgsu.edu/warnings.shtml
>now i attempted to create a legend by making gifs of the various colors
>and putting at the top of the image because i can't seem to make
>gpwarn create a legend by color by warning type. ..
>
>here is the adapted chiz:
># script location /home/ldm/util/inuse/warn2.csh
>#!/bin/csh -f
># Sample script to plot current tornado and severe thunderstorm
>## This script plots the data in a GIF image.  It can be easily
># changed to create a metafile, XWindow, or postscript file.
>#
># S.Chiswell/Unidata    Original
># P.Bruehl/NWS  7/97    SOO release
>#
>
># Set the DISPLAY variable to the Xserver that will be used to
># create the GIF image.
>setenv DISPLAY :1.0
>source /home/gempak/nawips/Gemenviron
>cd /home/ldm/data/gempak/web
>#
># Define the directory that contains the watch box GEMPAK files
># decoded by DCWATCH.
>set STORM=/home/ldm/data/gempak/storm/watches
>
>#
># Define the directory that contains the text thunderstorm,
># tornado, and windter weather warning files.
>set TORN_WARN=/home/ldm/data/gempak/nwx/watch_warn/torn_warn/
>set TSTRM_WARN=/home/ldm/data/gempak/nwx/watch_warn/tstrm_warn/
>set WNTR_WARN=/home/ldm/data/gempak/nwx/watch_warn/winter/
>set NO_PRECIP=/home/ldm/data/gempak/nwx/watch_warn/noprcp/
>set SEVERE=/home/ldm/data/gempak/nwx/watch_warn/severe/
>set SPECIAL=/home/ldm/data/gempak/nwx/watch_warn/special/
>set FLASHWATCH=/home/ldm/data/gempak/nwx/fflood/watch/
>set FLASHWARN=/home/ldm/data/gempak/nwx/fflood/warn/
>set HAZARDOUT=/home/ldm/data/gempak/nwx/pubprod/hzrd_otlk/
>
># Get the current date
>set YMD=`date -u '+%y%m%d/%H%M'`
>set DATE=`date -u '+%y%m%d'`
>
># Don't run gpwarn if NOWARN, Don't run gpwatch if NOWATCH
>set NOWATCH=0
>set NOWARN=0
>
>#
># Check if any new watches have been decoded today
># ASSUMES watches are stored in files named watches*.gem, where
># "*" can be any string (such as watches970716.gem).
>#
>set LATEST=`find $STORM/* -mtime -1 -print`
>if($#LATEST == 0) then
>   set NOWATCH=1
>else
>   echo $LATEST latest file $YMD
>endif
>
>#
># Check if any new tornado, thunderstorm, or winter weather warnings
># have been issued today.
># ASSUMES warnings are stored in files named *.torn, *.tstrm, *.winter
>#  where"*" can be any string (such as 970716.torn).
>#
>set TORNADO=`find $TORN_WARN/*.torn -mtime -1 -print`
>set TSTRM=`find $TSTRM_WARN/*.tstrm -mtime -1 -print`
>set WINTER=`find $WNTR_WARN/*.winter -mtime -1 -print`
>set NONPRECIP=`find $NO_PRECIP/*.noprcp -mtime -1 -print`
>set SEV=`find $SEVERE/*.severe -mtime -1 -print`
>set SPEC=`find $SPECIAL/*.special -mtime -1 -print`
>set FWATCH=`find $FLASHWATCH/*.wtch -mtime -1 -print`
>set FWARN=`find $FLASHWARN/*.warn -mtime -1 -print`
>set HAZARD=`find $HAZARDOUT/*.hzolk -mtime -1 -print`
>
>#
># Concatentate all existing warning files into one big temporary file.
>set WARN=/tmp/warn.$$
>if(($#TORNADO != 0)||($#TSTRM != 0)||($#WINTER != 0)||($#NONPRECIP != 
>0)||($#SEV != 0)||($#SPEC != 0)||($#FWATCH != 0)||($#FWARN != 0)||($#HAZARD 
>!= 0)) then
>    cat $WINTER $TSTRM $TORNADO $NONPRECIP $SEV $SPEC $FWATCH $FWARN 
>$HAZARD >! $WARN
>endif
>
>#
># Check for current data.  If none, exit
>if((! -e /tmp/warn.$$)||(-z /tmp/warn.$$)) then
>    set NOWARN=1
>    if(-e /tmp/warn.$$) then
>       rm -f /tmp/warn.$$
>    endif
>endif
>if(($NOWATCH == 1)&&($NOWARN == 1)) then
>    exit
>endif
>
>#
># Remove previous graphic
>if(-e watch_boxes.gif) then
>    rm watch_boxes.gif
>endif
>
>#
># If watch data exists, plot it
>#
>if($NOWATCH == 0) then
>gpwatch << EOF
>    MAP      = 0
>    GAREA    = uslcc
>    PROJ     = lcc
>    SATFIL   =
>    RADFIL   =
>    LATLON   = 0
>    PANEL    = 0
>    CLEAR    = yes
>    DEVICE   = gf|watch_boxes.gif|975;780
>    WWFIL    = $LATEST
>    WWS      = cur
>    WWATT    = y
>    run
>
>    exit
>EOF
>endif
>
>#
># If warning data exists, plot it
>#
>gpwarn << EOF1
>  GAREA    = uslcc
>  PROJ     = lcc
>  SATFIL   =
>  RADFIL   =
>  LATLON   = 0
>  PANEL    = 0
>  TITLE = 19/-3/All Current Advisories...  Valid $YMD z    weather.bgsu.edu
>  TEXT     = 1.2/1/1
>  CLEAR    = no
>  DEVICE   = gf|watch_boxes.gif|975;780
>  WWFIL    = $WARN
>  WWS      = current
>  WWATT    = 120/1400
>  IMCBAR   = 32/V/LC//.88;.05/1
>  run
>
>  exit
>EOF1
>
>#
># Label the graphic
>gpmap << EOF2
>  \$mapfil = hipowo.cia
>  MAP = 8/1/1
>  run
>
>  exit
>EOF2
>
>gpend
>
>#
># Clean up
>rm -r -f *.txt
>
>set webdir = /home/ldm/data/gempak/web/
>
>
>#cp $WARN /home/ldm/data/gempak/web/warnings.txt
>rm $WARN
>cd /home/ldm/data/gempak/web
>#perl -pi -e's/\r//g; s/\n\n+/\n\n/g' *.txt
>
>ncftpput -u XXXXXXX -p XXXXXX weather.bgsu.edu 
>/var/www/html/data/warningmap *.gif
>#ncftpput -u XXXXXX -p XXXXXX weather.bgsu.edu 
>/var/www/html/data/warningmap *.txt
>
>rm -r -f *.nts
>
>gpend


<snip #3>

The basic question for LDM pqact parsing is you can file 
products using the PIL identifier (such as /pTORBOU)
to create directories of products, and issuing offices.

The more complicated aspect is clipping out affected zone/counties
from the UGC or VTEC line. The fips program I included in GEMPAK
will check the UGC line for an input zone or county and output the
bulletin it it includes that, but is doesn't parse the bulletin for the "$$"
pieces.

Robb Kambic had a perl decoder to chop out zones I believe that
would be a good starting point if needed to modify for
other types of products. 

The VTEC identifier in bulletins should also help when fully implemented by the 
NWS.


Steve Chiswell
Unidata User Support

>
>
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