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Sectoring GINI images (fwd)


===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================

---------- Forwarded message ----------
Date: Tue, 29 Dec 1998 10:28:17 -0700
From: Steve Chiswell <address@hidden>
To: address@hidden
Subject: Sectoring GINI images


Since Tom W. mentioned sectoring/sampling the GINI
images, I wanted to let everyone know that we do have
GEMPAK program which will sector and sample the GINI 
imagery. 

Here is the description for program "sector".

SECTOR subsets a GINI satellite image in area and pixel resolution.
  
 INPUT PARAMETERS
  
     SATFIL    *Satellite image filename(s)
     OUTFIL    *Output satellite image filename
     GAREA     *Graphics area
     PIXRES    *Resolution of output image
  
  
  
 PROGRAM DESCRIPTION
  
     SECTOR subsets a GINI satellite image in area and pixel
     resolution.  The input satellite file MUST be an AWIPS/GINI
     file.  The new file is created with an updated header based
     on the subset area or the new number of pixels and lines.
  
     If GAREA is DSET the entire image is used, otherwise a subset
     specified by GAREA is obtained from the image.  PIXRES is the
     input for how many pixels and lines to include in the new
     image. If PIXRES is 4, then every 4th pixel and line will be
     used in the new image.
  
  
 EXAMPLES
  
     1.  Create a subset image over Kansas, that uses all pixels.
  
        SATFIL   =  IR_960723_1200
        OUTFIL   =  IR_960723_1200_ks
        GAREA    =  ks
        PIXRES   =  1
  
     2.  Create a new image that is for the entire area but uses
        every 4th pixel and line.
  
        SATFIL   =  IR_960723_1200
        OUTFIL   =  IR_960723_1200_4
        GAREA    =  dset
        PIXRES   =  4


Chiz