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20050613: output of TEMP values in AXFORM (cont.)



>From: "Mekonnen Gebremichael" <address@hidden>
>Organization: Pratt School of Engineering, Duke University
>Keywords: 200504201601.j3KG1gv2005753 McIDAS probing image values

Hi Mekonnen,

re: processing of global composite IR images
>I wrote a script in KSH to do the job. In order to loop through each
>dataset, I am planning to vary POS (starting form 1 until the last number of
>files) in the imgcopy.k statement.

Sounds tood.

>Could you see the script I attached and give me your feedback. 

Sure.  My comments are intermixed with the script below.

  #!/bin/ksh

The first thing I would consider doing in the script is define all
environment variables needed by McIDAS.  If you are logged in to an
interactive Unix session where these variables are already defined,
this is not needed.  If, however, you decide sometime later that you
want to run the script from a cron job (for instance, you find that you
will be doing the processing on a regular basis), then you want the
script to be self contained.

I provide two example shell scripts in the McIDAS distribution to help
users develop their own scripts:

~mcidas/data/mcrun.sh
~mcidas/data/mcbatch.sh

These scripts are designed to be copied to some other name and then
edited to match the user's need.  In particular, they have the
statements used for defining all needed environment variables.

  dsserve.k ADD IRjd183/AREA AREA 
DIRFILE=/disk/space/mek11/USdata/compIR/183/globir.02183.\* \"Global IR

You only need to define the dataset once so this could be done outside
of your script if you are going to be running the script from an
interactive Unix session.  It does no harm to define the dataset more
than once, however, so there is nothing wrong with what you are doing.

  redirect.k ADD globir.\* \"/disk/space/mek11/USdata/compIR/183

Like defining the dataset, defining a REDIRECTion only needs to be done
once.  Also like defining the dataset, there is no harm in redefining
the REDIRECTion.

For reference, the persistent "backing store" for dataset definitions
and REDIRECTions are:

DSSERVE definitions are saved in the file $MCDATA/RESOLV.SRV
REDIRECT definitions are saved in the file $MCDATA/LWPATH.NAM

Both of these files are used each time you run a McIDAS session as
long as you have defined the needed environment variables:

MCPATH -        defines the search path of directories for McIDAS when it is
                looking for data and ancillary data files

MCTABLE_READ -  defines the set of server mapping tables (created by DATALOC)
                to read to figure out where (on which server) a dataset
                is located

MCTABLE_WRITE - defines the single file to write when specifying a server
                mapping (DATALOC command)

  dmap.k  globir

Just to be sure?  Good idea :-)

  for i in 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
  do
     for j in 15 45
     do
        lwu.k POKE globir.02183.$i$j 0 56
        lwu.k POKE globir.02183.$i$j 0 57
     done       
  done

I am no KSH scripting expert, so I will assume that this is the correct
syntax for KSH do loops.

  y=1
  for i in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 
23 
  do
     for j in 15 45
     do
        echo $y         
        imgcopy.k IRjd183/AREA.1 MYDATA/IMAGES.3000 LATLON 39 100 SIZE=200 400 
POS=$y
        axform.k 3000 IR183$i$j FTYPE=ASC NAV=YES UNIT=TEMP
     done
     let y=y+1
  done

  print "Script done"

There is no 'POS' keyword for the IMGCOPY command.  I would change the
loop to increment the output position specified:


  y=1
  pos=3000
  for i in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 
23
  do
     for j in 15 45
     do
        echo $y
        imgcopy.k IRjd183/AREA.$y MYDATA/IMAGES.$pos LATLON 39 100 SIZE=200 400
        axform.k $pos IR183$i$j FTYPE=ASC NAV=YES UNIT=TEMP
     done
     let y=y+1
     let pos=pos+1
  done

This will make a unique image sector from each original.

-- OR --

  y=1
  for i in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 
23
  do
     for j in 15 45
     do
        echo $y
        imgcopy.k IRjd183/AREA.$i MYDATA/IMAGES.3000 LATLON 39 100 SIZE=200 400
        axform.k 3000 IR183$i$j FTYPE=ASC NAV=YES UNIT=TEMP
     done
     let y=y+1
  done

This uses a single output file (AREA3000), so it uses less disk space.

So, it looks like your script is pretty much done!  I recommend taking
a look at the example shell scripts in the McIDAS distribution for some
ideas on setting the needed environment variables just in case you decide
to start running the script from cron.

Cheers,

Tom
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