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[#OZC-984872]: Re: IR McIdas AREA files

Kevin / Jay,

GEMPAK supports single band area files only. The numbers in imgtyp.tbl represent
band numbers of the format 2**n-1 where n is the band number.

If you are seeing a band of 656, then this would appear to
be a file with 3 bands in it, eg 512 + 128 + 16. In order for GEMPAK to
display these images, they would have to be written into separate single
band image files by McIDAS.

Steve Chiswell
Unidata User Support

> Hi Jay,
> 
> The reason these won't display with GEMPAK is that these particular
> files have image attributes that do not match any entries in the GEMPAK
> satellite image table file, $GEMTBL/sat/imgtyp.tbl.  I tried hard coding
> an entry using imsorc=33, imtype=656, and imdpth=2, but the image did
> not look close to being correctly displayed.  I think we may need to
> have the GEMPAK source group at Unidata help us on this one, unless Dave
> V. and/or David K. have any other suggestions.
> 
> --Kevin
> 
> CC:  GEMPAK Support
> 
> Jay Cordeira wrote:
> > Hi guys,
> >
> > I have a question which perhaps you may know the answer to...
> >
> > I ftp-ed McIdas AREA satellite files (4km IR and 1km VIS) from
> > www.class.noaa.gov. Using satfil with gdplot2 in GEMPAK, I was able to plot 
> > the
> > VIS files, but when I try to plot the IR, the following error is returned:
> >
> > [IM 1] No image type entry for file xxxxx
> >
> > I've exhausted all resources I could think of, even the collective minds of
> > everyone in my office.
> >
> > Any ideas?
> >
> > Jay
> >
> > sat. files located: /lbdk11/cordeira/CLASS/
> > --------------------------------------
> > Jason M. Cordeira
> > Teaching/Research Assistant
> > Dept. of Earch & Atmospheric Sciences
> > University at Albany
> > Albany, NY 12222
> > email: address@hidden
> > --------------------------------------
> >
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: OZC-984872
Department: Support GEMPAK
Priority: Emergency
Status: Closed