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Re: nex2image and displaying output in NCEP N-AWIPS
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- Subject: Re: nex2image and displaying output in NCEP N-AWIPS
- Date: 16 Feb 2006 11:36:05 -0700
Gregg,
I see the problem. Your version does not allow for ichan to
be greater than 5 (so you probably can't look at the sounder
products on NOAAPORT either which have values of 41-59)!
My product is using "27" for N0R.
This really isn't going to work well if the GINI has to use a sensor and
channel that you might- but if you don't mind using GOES-7 for now, we
can call it a channel 5 (which maps to sensor 33, imtype 16) which will
work in your:
IF ( ichan .eq. 1 ) THEN
imtype = 1
ELSE IF ( ichan .eq. 2 ) THEN
imtype = 2
ELSE IF ( ichan .eq. 3 ) THEN
imtype = 4
ELSE IF ( ichan .eq. 4 ) THEN
imtype = 8
ELSE IF ( ichan .eq. 5 ) THEN
imtype = 16
ELSE
iret = -4
RETURN
END IF
and
IF ( isat .eq. 10 .and. ichan .ne. 1 ) THEN
imsorc = 33
IF ( ichan .eq. 3 ) imtype = 512
IF ( ichan .eq. 4 ) imtype = 128
Note that what I have for the ichan to imtype instead of that
set of IF statetemts above is:
IF (( ichan .ge. 1 ) .and. ( ichan .le. 32 )) THEN
imtype = 2**(ichan - 1)
ELSE IF ( ( ichan .ge. 33 ) .and. ( ichan .lt. 64 ) ) THEN
C
C* assign channels 33-63 as channel ID- won't overlap 2**x
C
imtype = ichan
ELSE
iret = -4
RETURN
END IF
The first IF handles all the channels 1-32. The second maps channels
33-63 (which is needed to use the NOAAPOR GINI imager of
sounder products which are channels 41-59 as mentioned above).
I've attatched a modified version of giniid.c which will rechannel
the product to "5". This channel number is configuratble in a table
used by nex2gini on creation, so wouldn't require a code mod.
Use a imgtyp.tbl line of:
RADAR N0R 0 105 33 16 1 upc_rad24.tbl
Steve Chiswell
Unidata User Support
On Thu, 2006-02-16 at 09:10, Gregory Grosshans wrote:
> Steve,
>
> I've attached the NCEP version of imgi2gm.f, it appears GOES-7 is set
> for imsorc = 32. So, I changed imgtyp.tbl N0R's entry from 33 to 32
> and ran GPMAP by hand, after using a gpend, and still receive an
> error:
>
> [IM 1] No image type entry for file N0R_20060215_2015
>
> I've also attached our imgtyp.tbl that I'm trying to use in this whole
> process.
>
> Should I try changing the satellite ID from 10 to 14, and hence change
> the imgtyp.tbl entry from 32 to 76?
>
> Thanks,
> Gregg
>
>
> Steve Chiswell wrote:
> > Gregg,
> >
> > Your file is identical to mine. After modifying imgtyp.tbl,
> > try running gpmap with:
> > satfil = N0R_20060215_2015
> > proj = sat
> > garea = dset
> >
> > (when making changes to imgtyp.tbl, you have to run gpend and
> > rerun gpmap so that the image pixmap isn't cached).
> >
> > If that works, then NMAP2 should work, but again, the default behavior
> > in the xw driver (xsatim.c) is that if the file name is the same, it
> > won't reread the file if you try to reload it, so you have to close
> > NMAP2 and rerun after editing imgtyp.tbl.
> >
> > Steve Chiswell
> > Unidata User Support
> >
> > On Wed, 2006-02-15 at 16:12, Gregory Grosshans wrote:
> >
> > > Steve,
> > >
> > > Thanks for all of your help. However, I'm still obtaining the same IM
> > > error in NMAP2. I've attached the updated GINI file that I created from
> > > your program. Am I overlooking something? I also updated the
> > > imgtyp.tbl to change the satellite ID from 11 to 33.
> > >
> > > Thanks,
> > > Gregg
> > >
> > > Steve Chiswell wrote:
> > >
> > >
> > > > Gregg,
> > > >
> > > > Here is a quick pipe program to flip the 99 in to 10 (goes 7),
> > > > which will be treated as ID=33 in imgtyp.tbl:
> > > >
> > > > --------------------giniid.c----------------------
> > > > #include <stdio.h>
> > > > #include <unistd.h>
> > > >
> > > > main()
> > > > {
> > > > int isinit=!0;
> > > > size_t nbytes;
> > > > unsigned char buf[8192];
> > > >
> > > > while ( ( nbytes = read(STDIN_FILENO, buf, (size_t)8192) ) > 0 )
> > > > {
> > > > if ( isinit )
> > > > {
> > > > if ( buf[22] == 99 ) buf[22] = (unsigned char)10;
> > > > isinit = 0;
> > > > }
> > > > write(STDOUT_FILENO, buf, nbytes);
> > > > }
> > > >
> > > > }
> > > >
> > > > ----------------------------------------------------------
> > > > run the program as: cat inputgini | giniid > output gini
> > > >
> > > > I can now plot the image using the imgtyp.tbl entry:
> > > > RADAR N0R 0 105 33 2**26 1
> > > > upc_rad24.tbl
> > > >
> > > > Steve Chiswell
> > > > Unidata User Support
> > > >
> > > >
> > > > On Wed, 2006-02-15 at 14:56, Gregory Grosshans wrote:
> > > >
> > > >
> > > >
> > > > > Steve,
> > > > >
> > > > > Do you know if its possible to manually/easily change the satellite
> > > > > ID
> > > > > in the AREA file to a "known" number, like GOES-7,
> > > > > so SPC can see what the image looks like?
> > > > >
> > > > > Thanks,
> > > > > Gregg
> > > > >
> > > > > Steve Chiswell wrote:
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > > Gregg,
> > > > > >
> > > > > > OK...bummer....
> > > > > >
> > > > > > In nex2gini, I define the gini satellite ID as 99 to not conflict
> > > > > > with
> > > > > > the defined GOES satellite numbers. In gemlib/im/imgi2gm.f, the
> > > > > > routine has a set of IF statements:
> > > > > > C
> > > > > > C* Set the satellite number. (Octet 2)
> > > > > > C*
> > > > > > Where I added
> > > > > > ELSE IF ( isat .eq. 99 ) THEN
> > > > > > imsorc = 11
> > > > > >
> > > > > >
> > > > > > This all has to do with mapping the GINI satellite ID to the AREA
> > > > > > file
> > > > > > satellite ID used in imgtyp.tbl. Its ugly already since GINI files
> > > > > > don't use the same numbers as the AREA files do.
> > > > > >
> > > > > > So, to use NCEP's distribution, out of the box, we would have to
> > > > > > modify my nex2gini code to use one on the "known" numbers like
> > > > > > GOES-7 (which isn't broadcast currently, or work with NCEP to modify
> > > > > > that routine.
> > > > > >
> > > > > > Sorry about that!
> > > > > >
> > > > > > Steve Chiswell
> > > > > > Unidata User Support
> > > > > >
> > > > > >
> > > > > > On Wed, 2006-02-15 at 13:54, Gregory Grosshans wrote:
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > > Steve,
> > > > > > >
> > > > > > > I've updated imgtyp.tbl with the information you provided below
> > > > > > > and
> > > > > > > have the upc_rad24.tbl file in the local directory. I reset SAT
> > > > > > > and
> > > > > > > RAD to the current directory, made a subdirectory call "N0R" and
> > > > > > > placed the image file in the "N0R" directory.
> > > > > > >
> > > > > > > In NMAP2 the image appears in the timeline but the following
> > > > > > > error is
> > > > > > > in the "Error Message" window:
> > > > > > >
> > > > > > > [IM 1} No image type entry for file $RAD/N0R/N0R_20060215_2015
> > > > > > > [GEMPLT -60] NIMCORD - Invalid image display coordinates
> > > > > > > [IM 1} No image type entry for file $RAD/N0R/N0R_20060215_2015
> > > > > > >
> > > > > > > The above error occurs when trying to load the image as a
> > > > > > > "SAT"ellite
> > > > > > > image and also as a "RAD"ar image.
> > > > > > >
> > > > > > > Am I overlooking something that is causing this error?
> > > > > > >
> > > > > > > Thanks,
> > > > > > > Gregg
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Steve Chiswell wrote:
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > > Gregg,
> > > > > > > >
> > > > > > > > Attached is a 1km GINI as uncompressed. I do have another
> > > > > > > > addition to nex2image which writes the image portion as a png
> > > > > > > > which
> > > > > > > > I added code to crgini.c to handle...but since that is
> > > > > > > > configurable
> > > > > > > > on creation side, that wouldn't prevent you from using NCEP's
> > > > > > > > distribution for uncompressed GINI's.
> > > > > > > >
> > > > > > > > As for the NetCDF grids for QPESUMS, they are very similar to
> > > > > > > > the
> > > > > > > > file structure for the AWIPS NetCDF images that is already
> > > > > > > > handled
> > > > > > > > in the IM_library, so I made a few additions there as you note.
> > > > > > > >
> > > > > > > > At any rate, I have the following lines in my
> > > > > > > > $GEMTBL/sat/imgtyp.tbl
> > > > > > > > file:
> > > > > > > >
> > > > > > > > ! Unidata GINI composite RADAR (ranges as defined in
> > > > > > > > unidata/nex2gini.tbl)
> > > > > > > > RADAR N0Z 0 255 11 2**24
> > > > > > > > 1 osf_ref16.tbl
> > > > > > > > RADAR NET 0 255 11 2**25
> > > > > > > > 1 upc_net.tbl
> > > > > > > > RADAR N0R 0 105 11 2**26
> > > > > > > > 1 upc_rad24.tbl
> > > > > > > > RADAR NCR 0 105 11 2**27
> > > > > > > > 1 upc_rad24.tbl
> > > > > > > > RADAR NVL 0 255 11 2**28
> > > > > > > > 1 upc_nvl.tbl
> > > > > > > > RADAR N1P 0 255 11 2**29
> > > > > > > > 1 upc_n1p.tbl
> > > > > > > > RADAR NTP 0 255 11 2**30
> > > > > > > > 1 upc_ntp.tbl
> > > > > > > >
> > > > > > > > I've attached the upc_rad24.tbl file as well. If you place the
> > > > > > > > images
> > > > > > > > under the $SAT duirectory for nmap, you can take advantage of
> > > > > > > > more
> > > > > > > > than the 20 radar colors that GEMPAK uses for radar images!
> > > > > > > >
> > > > > > > > Steve Chiswell
> > > > > > > > Unidata User Support
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > On Wed, 2006-02-15 at 12:58, Gregory Grosshans wrote:
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > > Steve,
> > > > > > > > >
> > > > > > > > > Would it be possible for you to send an attached 1km GINI
> > > > > > > > > radar mosaic
> > > > > > > > > that I can try to display in NCEP
> > > > > > > > > NMAP2? If this works then SPC can decide if we want to
> > > > > > > > > create the
> > > > > > > > > mosaic here via the nex2image code
> > > > > > > > > or possible obtain it via LDM in a non-operational manner.
> > > > > > > > > The nice
> > > > > > > > > thing about this is NCEP NMAP
> > > > > > > > > can display the data. The QPESUMS NetCDF data I suspect
> > > > > > > > > doesn't display
> > > > > > > > > in NCEP NMAP.
> > > > > > > > >
> > > > > > > > > Thanks for your help.
> > > > > > > > > Gregg
> > > > > > > > >
> > > > > > > > > Steve Chiswell wrote:
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Gregg,
> > > > > > > > > >
> > > > > > > > > > The calibration bar units would be the only thing that the
> > > > > > > > > > NCEP
> > > > > > > > > > distribution doesn't have. I can send you the 1km GINI
> > > > > > > > > > radar files
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > > >from our LDM if that would be of use for you.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > However, you may want to investigate the 1km products that
> > > > > > > > > > NSSL
> > > > > > > > > > is working to produce (Ken Howard and Steve Vasiloff
> > > > > > > > > > provided some
> > > > > > > > > > background to their QPESUMS product to us last year). I did
> > > > > > > > > > modify
> > > > > > > > > > our GEMPAK distribution to read their NetCDF tiled files-
> > > > > > > > > > and hoping that they were going to produce single files
> > > > > > > > > > rather than
> > > > > > > > > > tiles. The point here being that they are doing the 3-D
> > > > > > > > > > volume level 2
> > > > > > > > > > radar data, and the AP/clutter removal). See the March 2005
> > > > > > > > > > and
> > > > > > > > > > May 2005 links at:
> > > > > > > > > > http://www.unidata.ucar.edu/community/seminars/
> > > > > > > > > >
> > > > > > > > > > We are hoping to be able to distribute the QPESUMS products
> > > > > > > > > > when they
> > > > > > > > > > are ready...but I haven't heard an update on the status
> > > > > > > > > > recently.
> > > > > > > > > >
> > > > > > > > > > Steve Chiswell
> > > > > > > > > > Unidata User Support
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > On Tue, 2006-02-14 at 14:31, Gregory Grosshans wrote:
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > Hi Steve,
> > > > > > > > > > >
> > > > > > > > > > > I was talking to Scott today and heard you stopped by
> > > > > > > > > > > NCEP last week. I
> > > > > > > > > > > hope your visit went well.
> > > > > > > > > > >
> > > > > > > > > > > There is renewed interest at the SPC in 1km radar
> > > > > > > > > > > mosaics. Some time ago
> > > > > > > > > > > through email exchanges with you it
> > > > > > > > > > > appeared things would work except for the calibration bar
> > > > > > > > > > > from the GINI
> > > > > > > > > > > data in the N-AWIPS core code (i.e. see email
> > > > > > > > > > > below).
> > > > > > > > > > >
> > > > > > > > > > > Can you tell me if this would still be the case, that is
> > > > > > > > > > > if we were to
> > > > > > > > > > > run nex2image to create a 1km mosaic from
> > > > > > > > > > > level-III radar products and then displaying the GINI
> > > > > > > > > > > data in NCEP
> > > > > > > > > > > N-AWIPS (i.e. NMAP2)? Are you aware of
> > > > > > > > > > > any other limitations that may result from running the
> > > > > > > > > > > nex2image program
> > > > > > > > > > > with the rest of the N-AWIPS being
> > > > > > > > > > > core NCEP code?
> > > > > > > > > > >
> > > > > > > > > > > Thanks,
> > > > > > > > > > > Gregg
> > > > > > > > > > >
> > > > > > > > > > > Steve Chiswell wrote:
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > > Gregg,
> > > > > > > > > > > >
> > > > > > > > > > > > You can get the distribution via the web. If you are
> > > > > > > > > > > > running Linux,
> > > > > > > > > > > > then the easiest way would be to grab the binary and
> > > > > > > > > > > > take the programs
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > >from bin/linux. Also, you will need the $GEMTBL/unidata
> > > > > > > > > > > >directory for
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > > nex2image to place the appropriate platformID and
> > > > > > > > > > > > calibration numbers in
> > > > > > > > > > > > the GINI header (Also grab the entries from
> > > > > > > > > > > > $GEMTBL/sat/imgtype.tbl and
> > > > > > > > > > > > the color enhancements from $GEMTBL/luts mentioned in
> > > > > > > > > > > > the imgtype.tbl file).
> > > > > > > > > > > >
> > > > > > > > > > > > With NCEP's plotting, you won't get a calibration bar
> > > > > > > > > > > > from the GINI.
> > > > > > > > > > > > Our distribution has additional code to create read the
> > > > > > > > > > > > calibration
> > > > > > > > > > > > section from the GINI.
> > > > > > > > > > > >
> > > > > > > > > > > > Steve Chiswell
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > ______________________________________________________________
> > > > > > > > > > > ! upc_ref24.tbl
> > > > > > > > > > > !
> > > > > > > > > > > ! Color table for 24-level NIDS Reflectivity
> > > > > > > > > > > !
> > > > > > > > > > > !Color name Abrev Red Green Blue X color name
> > > > > > > > > > > 0 0 0
> > > > > > > > > > > 0 0 00
> > > > > > > > > > > 0 0 00
> > > > > > > > > > > 0 0 00
> > > > > > > > > > > 0 0 00
> > > > > > > > > > > 0 0 000
> > > > > > > > > > > 0 0 020
> > > > > > > > > > > 0 0 040
> > > > > > > > > > > 0 0 060
> > > > > > > > > > > 0 236 236
> > > > > > > > > > > 1 160 246
> > > > > > > > > > > 0 0 246
> > > > > > > > > > > 0 255 0
> > > > > > > > > > > 0 200 0
> > > > > > > > > > > 0 144 0
> > > > > > > > > > > 255 255 0
> > > > > > > > > > > 231 192 0
> > > > > > > > > > > 255 144 0
> > > > > > > > > > > 255 0 0
> > > > > > > > > > > 214 0 0
> > > > > > > > > > > 192 0 0
> > > > > > > > > > > 255 0 255
> > > > > > > > > > > 153 85 201
> > > > > > > > > > > 255 255 255
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> >
> >
>
>
>
> ______________________________________________________________________
>
> ! IMGTYP.TBL
> !
> ! This table contains the minimum and maximum image pixel values
> ! for use in setting the colors when displaying satellite or radar images.
> ! A default look up table (LUT) file is also assigned per image type.
> !
> ! For satellite images, the comparisons are based on the satellite ID number,
> ! the image type and whether the image is a "raw" image or not.
> !
> ! The IMGTYP is a coded number representing the channel of the image.
> ! The value is equal to 2**(channel-1).
> !
> ! For RADAR images, the NIDS product code is used to identify different radar
> ! types.
> !
> ! (Do not use tabs when adding to the table.)
> !!
> ! Log:
> ! S. Jacobs/NCEP 12/97 Updated info for radar images
> ! S. Jacobs/NCEP 2/98 Updated per UNISYS product catalog
> ! J. Partain/MPC 3/98 Added GOES-10 images
> ! S. Jacobs/NCEP 4/98 Fixed spelling of abbreviations
> ! S. Jacobs/NCEP 7/98 Added METEOSAT7
> ! J. Carr/HPC 7/98 Updated a topography table
> ! J. Carr/HPC 7/98 Updated a topography table
> ! S. Jacobs/NCEP 8/98 Added SND data from GOES-8
> ! J. Partain/MPC 12/98 Added SSMI data
> ! G. Grosshans/SPC 2/99 Added two precip products for Unisys radar
> ! J. Carr/HPC 3/99 Added EST-RAIN and PWAT ssmi data.
> ! J. Partain/MPC 11/99 Added QuickSCAT data
> ! S. Jacobs/NCEP 12/99 Fix for GMS images satellite ID
> ! G. Grosshans/SPC 2/00 Added GOES Sounder data
> ! G. Grosshans/SPC 8/00 Added GOES Composite data
> ! G. Grosshans/SPC 2/01 Added FIRE Composite data
> ! S. Jacobs/NCEP 9/02 Changed all IR images to default to a GRAY LUT
> ! D.W.Plummer/NCEP 2/03 Additions/changes for 2-byte images
> ! D.W.Plummer/NCEP 4/03 chg GOES-12 VIS entry from 30-220 to 0-255
> ! S. Jacobs/NCEP 5/03 Replaced NIDS with LOCAL for local products
> ! S. Jacobs/NCEP 5/03 Added more entries for METEOSAT5
> ! m.gamazaychikov/SAIC 06/03 changed ssmi_mpc to ssmi_opc
> ! A. Hardy/NCEP 4/04 Added GOES-10 10-bit imagery (max = 1024)
> ! A. Hardy/NCEP 12/04 Added METEOSAT7 sensor source number 58
> ! S. Jacobs/NCEP 5/05 Added AMSU, TRMM, SSMI-WINDS; allow exponents
> ! S. Jacobs/NCEP 5/05 Added CAPE-CINH and LIX-PWX
> ! S. Jacobs/NCEP 11/05 Added new MTS entries for satid=84
> !------------------------------------------------------------------------------
> !
> ! SATELLITE IMAGE TYPES
> ! ---------------------
> ! |IMG | | |SAT ID|IMGTYP| PIXEL| DEFAULT
> |
> !SAT ID |TYP | MIN| MAX|NUMBER|NUMBER| DEPTH| LUT FILE
> |
> !(20) |(8) | (6)| (6)| (6)| (6)| (6)| (14)
> |
> ! | | | | | | |
> |
> FIRE FIRE 0 8 99 1 1 firemask.tbl
> COMPOSITE CAPE 0 255 75 128 1 GRAY
> GOES-SOUNDER SOUNDER 0 255 75 1 1 gdpw1.tbl
> TOPO VIS 52 226 11 1 1 upc_topo.tbl
> AMSU-PWAT IR 0 255 10 2**23 1 GRAY
> AMSU-RAIN IR 0 255 10 2**21 1 GRAY
> AMSU-89GHZ IR 0 255 10 2**15 1 GRAY
> QSCAT IR 0 255 10 64 1 ir_nmc.tbl
> TRMM-RAIN IR 0 255 10 1 1 GRAY
> SSMI IR 0 255 9 64 1 ssmi_opc.tbl
> SSMI-WINDS IR 0 255 9 4 1 ssmi_opc.tbl
> EST-RAIN IR 0 255 9 2 1 ssmi_opc.tbl
> PWAT IR 0 255 9 32 1 ssmi_opc.tbl
> GOES6 VIS 30 220 30 1 1 GRAY
> GOES6 IR 0 255 31 128 1 ir_sab.tbl
> GOES6 WV 0 255 31 512 1 watvap.tbl
> GOES7 VISPC 0 255 32 128 1 GRAY
> GOES7 VIS 30 220 32 1 1 GRAY
> GOES7 IR 0 255 33 128 1 ir_sab.tbl
> GOES7 WV 0 255 33 512 1 watvap.tbl
> GOES7-RAW IR 1280 18000 33 128 2 ir_sab.tbl
> GOES7-RAW WV 0 18000 33 512 2 watvap.tbl
> GOES8 VIS 30 220 70 1 1 GRAY
> GOES8 IR2 0 255 70 2 1 ir_sab.tbl
> GOES8 WV 0 255 70 4 1 watvap.tbl
> GOES8 IR 0 255 70 8 1 ir_sab.tbl
> GOES8 IR5 0 255 70 16 1 sabir.tbl
> GOES8 IR 0 255 70 128 1 ir_sab.tbl
> GOES8 VIS 0 30240 70 1 2 GRAY
> GOES8 IR2 0 255 70 2 2 ir_sab.tbl
> GOES8 WV 0 255 70 4 2 watvap.tbl
> GOES8 IR 0 255 70 8 2 ir_sab.tbl
> GOES8 IR5 0 255 70 16 2 sabir.tbl
> GOES8 IR 0 255 70 128 2 ir_sab.tbl
> GOES8 SND 0 255 71 1 1 GRAY
> GOES9 VIS 30 220 72 1 1 GRAY
> GOES9 IR2 0 255 72 2 1 ir_sab.tbl
> GOES9 WV 0 255 72 4 1 watvap.tbl
> GOES9 IR 0 255 72 8 1 ir_sab.tbl
> GOES9 IR5 0 255 72 16 1 ir_sab.tbl
> GOES9 IR 0 255 72 128 1 ir_sab.tbl
> GOES9 VIS 0 30240 72 1 2 GRAY
> GOES9 IR2 0 255 72 2 2 ir_sab.tbl
> GOES9 WV 0 255 72 4 2 watvap.tbl
> GOES9 IR 0 255 72 8 2 ir_sab.tbl
> GOES9 IR5 0 255 72 16 2 ir_sab.tbl
> GOES9 IR 0 255 72 128 2 ir_sab.tbl
> GOES10 VIS 30 220 74 1 1 GRAY
> GOES10 VIS 0 1024 74 1 2 GRAY
> GOES10 IR2 0 255 74 2 1 ir_sab.tbl
> GOES10 IR3 0 255 74 4 1 watvap.tbl
> GOES10 IR4 0 255 74 8 1 ir_sab.tbl
> GOES10 IR5 0 255 74 16 1 ir_sab.tbl
> GOES10 IR4 0 255 74 128 1 ir_sab.tbl
> GOES10 VIS 0 30240 74 1 2 GRAY
> GOES10 IR2 0 255 74 2 2 ir_sab.tbl
> GOES10 IR3 0 255 74 4 2 watvap.tbl
> GOES10 IR4 0 26624 74 8 2 GRAY
> GOES10 IR5 0 26624 74 16 2 GRAY
> GOES10 IR4 0 26624 74 128 2 GRAY
> CAPE-CINH IR 0 255 75 2 1 GRAY
> LIX-PWX IR 0 255 75 1 1 GRAY
> GOES12 VIS 0 255 78 1 1 GRAY
> GOES12 IR2 0 255 78 2 1 ir_sab.tbl
> GOES12 IR3 0 255 78 4 1 watvap.tbl
> GOES12 IR4 0 255 78 8 1 GRAY
> GOES12 IR5 0 255 78 16 1 sabir.tbl
> GOES12 IR6 0 255 78 32 1 GRAY
> GOES12 IR4 0 255 78 128 1 ir_sab.tbl
> GOES12 VIS 0 30240 78 1 2 GRAG
> GOES12 IR2 0 255 78 2 2 ir_sab.tbl
> GOES12 IR3 0 255 78 4 2 watvap.tbl
> GOES12 IR4 0 255 78 8 2 ir_sab.tbl
> GOES12 IR5 0 255 78 16 2 ir_sab.tbl
> GOES12 IR6 0 255 78 32 2 GRAY
> GOES12 IR4 0 255 78 128 2 ir_sab.tbl
> GLOBAL VIS 30 220 70 1 1 GRAY
> GLOBAL IR2 0 255 70 2 1 ir_sab.tbl
> GLOBAL WV 0 255 70 4 1 watvap.tbl
> GLOBAL IR 0 255 70 8 1 ir_sab.tbl
> GLOBAL IR5 0 255 70 16 1 sabir.tbl
> GLOBAL IR 0 255 70 128 1 ir_sab.tbl
> GLOBAL VIS 0 30240 70 1 2 GRAY
> GLOBAL IR2 0 255 70 2 2 ir_sab.tbl
> GLOBAL WV 0 255 70 4 2 watvap.tbl
> GLOBAL IR 0 26624 70 8 2 ir_sab.tbl
> GLOBAL IR5 0 26624 70 16 2 sabir.tbl
> GLOBAL IR 0 26624 70 128 2 ir_sab.tbl
> METEOSAT3 VIS 0 255 54 1 1 GRAY
> METEOSAT3 IR 20 250 54 128 1 GRAY
> METEOSAT3 WV 0 255 54 512 1 watvap.tbl
> METEOSAT5 VIS 0 255 56 1 1 GRAY
> METEOSAT5 WV 0 255 56 4 1 watvap.tbl
> METEOSAT5 IR 20 250 56 8 1 GRAY
> METEOSAT5 IR 20 250 56 128 1 GRAY
> METEOSAT5 WV 0 255 56 512 1 watvap.tbl
> METEOSAT6 VIS 0 255 57 1 1 GRAY
> METEOSAT6 IR 0 255 57 128 1 GRAY
> METEOSAT6 WV 0 255 57 512 1 watvap.tbl
> METEOSAT7 VIS 0 255 58 1 1 GRAY
> METEOSAT7 IR 0 255 58 8 1 GRAY
> METEOSAT7 IR 0 255 58 128 1 GRAY
> METEOSAT7 WV 0 255 58 512 1 watvap.tbl
> GMS VIS 30 220 83 1 1 GRAY
> GMS VIS 30 220 12 1 1 GRAY
> GMS IR 0 255 83 2 1 ir_sab.tbl
> GMS IR 0 255 13 2 1 ir_sab.tbl
> GMS IR 0 255 83 8 1 ir_sab.tbl
> GMS IR 0 255 13 8 1 ir_sab.tbl
> GMS IR 0 255 83 128 1 ir_sab.tbl
> GMS IR 0 255 13 128 1 ir_sab.tbl
> MTS VIS 30 220 84 1 1 GRAY
> MTS IR 0 255 84 2 1 GRAY
> MTS WV 0 255 84 8 1 GRAY
> MTS IR2 0 255 84 16 1 GRAY
> !
> TERRAIN FT 0 255 71 1 0 terrain.tbl
> TERRAIN FT 0 255 71 1 1 terrain.tbl
> TERRAIN FT 0 255 71 0 0 terrain.tbl
> TERRAIN FT 0 255 71 0 1 terrain.tbl
> !
> !------------------------------------------------------------------------------
> !
> ! RADAR IMAGE TYPES
> ! -----------------
> ! |IMG | | |RAD ID|PROD | PIXEL| DEFAULT
> |
> !RAD ID |TYP | MIN| MAX|NUMBER|NUMBER| DEPTH| LUT FILE
> |
> !(20) |(8) | (6)| (6)| (6)| (6)| (6)| (14)
> |
> ! | | | | | | |
> |
> ! Used for the UNISYS data feed.
> NIDS 1 KM BASE REFLECT 0 15 7 19 1 osf_ref16.tbl
> NIDS 2 KM BASE REFLECT 0 15 7 20 1 osf_ref16.tbl
> NIDS 1 KM RADIAL VELOCITY 0 15 7 27 1
> nids_vel16.tbl
> NIDS 4 KM COMPOSIT REFLECT 0 7 7 36 1 osf_ref8.tbl
> NIDS 4 KM COMPOSIT REFLECT 0 15 7 38 1 osf_ref16.tbl
> NIDS 4 KM ECHO TOPS 0 15 7 41 1 nids_tops.tbl
> NIDS 1 KM STRM REL VELOCITY 0 15 7 56 1
> nids_vel16.tbl
> NIDS 4 KM VIL 0 15 7 57 1 nids_vil.tbl
> NIDS 4 KM L1 REFL MAX 0 7 7 65 1 osf_ref8.tbl
> NIDS 4 KM L2 REFL MAX 0 7 7 66 1 osf_ref8.tbl
> NIDS 2 KM 1HR PREC ACCUM 0 15 7 78 1 nids_pre.tbl
> NIDS 2 KM 3HR PREC ACCUM 0 15 7 79 1 nids_pre.tbl
> NIDS 2 KM TOT PREC ACCUM 0 15 7 80 1 nids_pre.tbl
> NIDS 4 KM L3 REFL MAX 0 7 7 90 1 osf_ref8.tbl
> !
> ! Used for data from other vendors.
> NIDS 1 KM BASE REFLECT 0 7 7 16 1 osf_ref8.tbl
> NIDS 2 KM BASE REFLECT 0 7 7 17 1 osf_ref8.tbl
> NIDS 4 KM BASE REFLECT 0 7 7 18 1 osf_ref8.tbl
> NIDS 4 KM BASE REFLECT 0 15 7 21 1 osf_ref16.tbl
> NIDS .25 KM RADIAL VELOCITY 0 7 7 22 1 nids_vel8.tbl
> NIDS .50 KM RADIAL VELOCITY 0 7 7 23 1 nids_vel8.tbl
> NIDS 1 KM RADIAL VELOCITY 0 7 7 24 1 nids_vel8.tbl
> NIDS .25 KM RADIAL VELOCITY 0 15 7 25 1
> nids_vel16.tbl
> NIDS .50 KM RADIAL VELOCITY 0 15 7 26 1
> nids_vel16.tbl
> NIDS .25 KM SPECTRUM WIDTH 0 7 7 28 1 nids_swid.tbl
> NIDS .50 KM SPECTRUM WIDTH 0 7 7 29 1 nids_swid.tbl
> NIDS 1 KM SPECTRUM WIDTH 0 7 7 30 1 nids_swid.tbl
> NIDS 1 KM COMPOSIT REFLECT 0 7 7 35 1 osf_ref8.tbl
> NIDS 1 KM COMPOSIT REFLECT 0 15 7 37 1 osf_ref16.tbl
> NIDS 1 KM SEVERE WX REFLECT 0 15 7 43 1 osf_ref16.tbl
> NIDS .25KM SEVERE WX VELOCITY 0 15 7 44 1
> nids_vel16.tbl
> NIDS .25KM SEVERE WX SWIDTH 0 7 7 45 1 nids_swid.tbl
> NIDS .50KM SEVERE WX SHEAR 0 15 7 46 1
> nids_rsher.tbl
> NIDS .50KM COMBINED MOMENT 0 15 7 49 1
> nids_cmref.tbl
> NIDS 1 KM X-SECTION REFLECT 0 15 7 50 1 osf_ref16.tbl
> NIDS 1 KM X-SECTION VELOCITY 0 15 7 51 1
> nids_vel16.tbl
> NIDS 1 KM X-SECTION SWIDTH 0 7 7 52 1 nids_swid.tbl
> NIDS 1 KM WEAK ECHO REGION 0 7 7 53 1
> nids_wecho.tbl
> NIDS .50 KM STRM REL VELOCITY 0 15 7 55 1
> nids_vel16.tbl
> NIDS 4 KM L1 REFL AVE 0 7 7 63 1 osf_ref8.tbl
> NIDS 4 KM L2 REFL AVE 0 7 7 64 1 osf_ref8.tbl
> NIDS 4 KM L1 TURB AVE 0 7 7 67 1 osf_ref8.tbl
> NIDS 4 KM L2 TURB AVE 0 7 7 68 1 osf_ref8.tbl
> NIDS 4 KM L3 TURB AVE 0 7 7 69 1 osf_ref8.tbl
> NIDS 4 KM L1 TURB MAX 0 7 7 70 1 osf_ref8.tbl
> NIDS 4 KM L2 TURB MAX 0 7 7 71 1 osf_ref8.tbl
> NIDS 4 KM L3 TURB MAX 0 7 7 72 1 osf_ref8.tbl
> NIDS COMBINED SHEAR 0 15 7 87 1
> nids_csher.tbl
> NIDS 4 KM L3 REFL AVE 0 7 7 89 1 osf_ref8.tbl
> !------------------------------------------------------------------------------
> ! Used for the UNISYS data feed.
> NATIONAL 4 KM COMP REFLECT 0 15 8 27 1 osf_ref16.tbl
> NATIONAL 8 KM COMP REFLECT 0 15 8 28 1 osf_ref16.tbl
> NATIONAL 4 KM COMP REFLECT 0 15 8 30 1 osf_ref16.tbl
> NATIONAL 8 KM COMP REFLECT 0 15 8 35 1 osf_ref16.tbl
> NATIONAL 4 KM COMP REFLECT 0 7 8 50 1 osf_ref8.tbl
> NATIONAL 8 KM COMP REFLECT 0 7 8 65 1 osf_ref8.tbl
> NATIONAL 4 KM 1HR PRECIP 0 15 8 90 1 nids_pre.tbl
> NATIONAL 8 KM 1HR PRECIP 0 15 8 91 1 nids_pre.tbl
> NATIONAL 4 KM ECHO TOPS 0 15 8 95 1 nids_tops.tbl
> NATIONAL 8 KM ECHO TOPS 0 15 8 96 1 nids_tops.tbl
> NATIONAL 4 KM CML PRECIP 0 15 8 100 1 nids_pre.tbl
> NATIONAL 4 KM CML PRECIP 0 15 8 101 1 nids_pre.tbl
> NATIONAL 4 KM CML PRECIP 0 15 8 101 2 nids_pre.tbl
> NATIONAL 4 KM 24HR PRECIP 0 15 8 102 1 nids_pre.tbl
> NATIONAL 4 KM COMP REFLECT 0 15 8 103 1 osf_ref16.tbl
> NATIONAL 8 KM COMP REFLECT 0 15 8 104 1 osf_ref16.tbl
> NATIONAL 8 KM CML PRECIP 0 15 8 107 1 nids_pre.tbl
> NATIONAL 8 KM 24HR PRECIP 0 15 8 108 1 nids_pre.tbl
> NATIONAL 2 KM BASE REFLECT 0 15 8 137 1 osf_ref16.tbl
> NATIONAL 2 KM BASE REFLECT 0 15 8 138 1 osf_ref16.tbl
> NATIONAL 2 KM BASE REFLECT 0 15 8 140 1 osf_ref16.tbl
> NATIONAL 4 KM BASE REFLECT 0 15 8 141 1 osf_ref16.tbl
> NATIONAL 8 KM BASE REFLECT 0 15 8 142 1 osf_ref16.tbl
> NATIONAL 4 KM BASE REFLECT 0 15 8 144 1 osf_ref16.tbl
> NATIONAL 4 KM LYRL REFLECT 0 7 8 145 1 osf_ref8.tbl
> NATIONAL 4 KM LYRM REFLECT 0 7 8 146 1 osf_ref8.tbl
> NATIONAL 4 KM LYRH REFLECT 0 7 8 147 1 osf_ref8.tbl
> NATIONAL 4 KM VIL 0 15 8 148 1 nids_vil.tbl
> NATIONAL 8 KM VIL 0 15 8 149 1 nids_vil.tbl
> !
> ! Used for data from other vendors.
> NATIONAL 4 KM COMP REFLECT 0 15 8 5 1 osf_ref16.tbl
> NATIONAL 8 KM COMP REFLECT 0 15 8 10 1 osf_ref16.tbl
> NATIONAL 4 KM COMP REFLECT 0 7 8 13 1 osf_ref8.tbl
> NATIONAL 8 KM COMP REFLECT 0 7 8 25 1 osf_ref8.tbl
> NATIONAL 4 KM COMP REFLECT 0 15 8 26 1 osf_ref16.tbl
> NATIONAL 2 KM BASE REFLECT 0 15 8 70 1 osf_ref16.tbl
> NATIONAL 4 KM BASE REFLECT 0 15 8 75 1 osf_ref16.tbl
> NATIONAL 8 KM BASE REFLECT 0 15 8 80 1 osf_ref16.tbl
> !------------------------------------------------------------------------------
> ! Used for the UNISYS data feed.
> REGIONAL 4 KM COMP REFLECT 0 15 9 30 1 osf_ref16.tbl
> REGIONAL 2 KM CML PRECIP 0 15 9 105 1 nids_pre.tbl
> REGIONAL 2 KM 24HR PRECIP 0 15 9 106 1 nids_pre.tbl
> REGIONAL 2 KM BASE REFLECT 0 15 9 137 1 osf_ref16.tbl
> REGIONAL 2 KM BASE REFLECT 0 15 9 138 1 osf_ref16.tbl
> REGIONAL 2 KM BASE REFLECT 0 15 9 140 1 osf_ref16.tbl
> REGIONAL 4 KM BASE REFLECT 0 15 9 141 1 osf_ref16.tbl
> !------------------------------------------------------------------------------
> WSI NOWRAD 8 KM US MOSAIC 0 15 7 1 1 osf_ref16.tbl
> WSI NOWRAD 2 KM US MOSAIC 0 15 7 2 1 osf_ref16.tbl
> !------------------------------------------------------------------------------
> ! Unidata GINI composite RADAR (ranges as defined in unidata/nex2gini.tbl)
> RADAR N0Z 0 255 11 2**24 1 osf_ref16.tbl
> RADAR NET 0 255 11 2**25 1 upc_net.tbl
> !RADAR N0R 0 105 11 2**26 1
> upc_rad24.tbl
> RADAR N0R 0 105 32 2**26 1 upc_rad24.tbl
> RADAR NCR 0 105 11 2**27 1 upc_rad24.tbl
> RADAR NVL 0 255 11 2**28 1 upc_nvl.tbl
> RADAR N1P 0 255 11 2**29 1 upc_n1p.tbl
> RADAR NTP 0 255 11 2**30 1 upc_ntp.tbl
>
> ______________________________________________________________________
>
> SUBROUTINE IM_GI2GM ( imgfil, ignhdr, rnvblk, iret )
> C************************************************************************
> C* IM_GI2GM *
> C* *
> C* This subroutine reads the header information from a AWIPS GINI file
> *
> C* and sets the navigation *
> C* *
> C* IM_GI2GM ( IMGFIL, IGNHDR, RNVBLK, IRET ) *
> C* *
> C* Input parameters: *
> C* IMGFIL CHAR* Image file name *
> C* *
> C* Output parameters: *
> C* IGNHDR (135) INTEGER GINI header array *
> C* RNVBLK (LLNNAV) REAL Navigation block *
> C* IRET INTEGER Return code *
> C* 0 = normal return *
> C* -2 = Error opening/reading file*
> C* -3 = Invalid image file format *
> C* -4 = Invalid image file header *
> C* -5 = Invalid image navigation *
> C** *
> C* Log:
> *
> C* T. Lee/GSC 7/96 Copied from IM_GNHD *
> C* T. Lee/GSC 7/96 Output to navigation block *
> C* S. Jacobs/NCEP 7/96 Changed to use GR_MNAV; Changed calling *
> C* sequence to MV_BTOI; Added ignhdr *
> C* J. Cowie/COMET 12/96 Fixed Mercator mapping bug *
> C* J. Cowie/COMET 1/97 Changed IMGDEF common variable names *
> C* J. Cowie/COMET 12/97 Added imradf *
> C* T. Lee/GSC 2/00 Y2K bug fix *
> C************************************************************************
> INCLUDE 'GEMPRM.PRM'
> INCLUDE 'IMGDEF.CMN'
> C*
> CHARACTER*(*) imgfil
> INTEGER ignhdr (*)
> REAL rnvblk (*)
> C*
> CHARACTER proj*3
> LOGICAL negflg
> C------------------------------------------------------------------------
> iret = 0
> sign = 1.
> dangl1 = 90.
> imradf = 0
> C
> C* Open the file and read the file header. (WMO and GINI headers)
> C
> CALL FL_DOPN ( imgfil, 135, .false., lunmf, iret )
> CALL FL_READ ( lunmf, 1, 135, ignhdr, ier )
> IF ( ier .ne. 0 ) THEN
> iret = -1
> RETURN
> END IF
> CALL FL_CLOS ( lunmf, ier )
> C
> C* Determine the start of the GINI product. Starts after the WMO
> C* header at either byte 22 or 26, depending on the WMO hdr length..
> C
> istart = 21 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, ihdr1, ier )
> istart = 25 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, ihdr2, ier )
> IF ( ihdr1 .eq. 10 ) THEN
> igstrt = 21
> ELSE IF ( ihdr2 .eq. 10 ) THEN
> igstrt = 25
> ELSE
> iret = -4
> END IF
> C
> C* Set the satellite number. (Octet 2)
> C*
> C* Value Sat
> C* -----------------------
> C* 9 METEOSAT
> C* 10 GOES-7
> C* 11 GOES-8
> C* 12 GOES-9
> C* 13 GOES-10
> C* 14 GOES-11
> C* 15 GOES-12
> C
> istart = igstrt + 2 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, isat, ier )
> IF ( isat .eq. 9 ) THEN
> imsorc = 56
> ELSE IF ( isat .eq. 10 ) THEN
> imsorc = 32
> ELSE IF ( isat .eq. 11 ) THEN
> imsorc = 70
> ELSE IF ( isat .eq. 12 ) THEN
> imsorc = 72
> ELSE IF ( isat .eq. 13 ) THEN
> imsorc = 74
> ELSE IF ( isat .eq. 14 ) THEN
> imsorc = 76
> ELSE IF ( isat .eq. 15 ) THEN
> imsorc = 78
> ELSE
> iret = -4
> RETURN
> END IF
> C
> C* Set the channel number. (Octet 4)
> C*
> C* Value Channel
> C* --------------------------
> C* 1 VIS
> C* 2 3.9 micron (IR)
> C* 3 6.7 micron (WV)
> C* 4 11 micron (IR)
> C* 5 12 micron (IR)
> C* 6 derived #1
> C* 7 derived #2
> C* 8 derived #3
> C* 9 derived #4
> C
> istart = igstrt + 4 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, ichan, ier )
> IF ( ichan .eq. 1 ) THEN
> imtype = 1
> ELSE IF ( ichan .eq. 2 ) THEN
> imtype = 2
> ELSE IF ( ichan .eq. 3 ) THEN
> imtype = 4
> ELSE IF ( ichan .eq. 4 ) THEN
> imtype = 8
> ELSE IF ( ichan .eq. 5 ) THEN
> imtype = 16
> ELSE
> iret = -4
> RETURN
> END IF
> C
> C* Adjust the source and channel for some image types to conform
> C* to AREA file numbering.
> C
> C* GOES-7
> C
> IF ( isat .eq. 10 .and. ichan .ne. 1 ) THEN
> imsorc = 33
> IF ( ichan .eq. 3 ) imtype = 512
> IF ( ichan .eq. 4 ) imtype = 128
> C
> C* Meteosat
> C
> ELSE IF ( isat .eq. 9 .and. ichan .ne. 1 ) THEN
> IF ( ichan .eq. 3 ) imtype = 512
> IF ( ichan .eq. 4 ) imtype = 128
> END IF
> C
> C* Get the date and time. (Octets 9-14)
> C
> istart = igstrt + 9 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, iyear, ier )
> istart = igstrt + 10 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, imon, ier )
> istart = igstrt + 11 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, iday, ier )
> istart = igstrt + 12 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, ihour, ier )
> istart = igstrt + 13 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, imin, ier )
> istart = igstrt + 14 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, isec, ier )
> C
> C* Determine century (year between 70 and 99; must be 1900's)
> C
> IF ( iyear .gt. 70 ) THEN
> iyear = 1900 + iyear
> ELSE
> iyear = 2000 + iyear
> END IF
> imdate = iyear * 10000 + imon * 100 + iday
> imtime = ihour * 10000 + imin * 100 + isec
> C
> C* Image size (Octets 17-18, 19-20). Set subset area to full image
> C
> istart = igstrt + 17 - 1
> nbytes = 2
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, imnpix, ier )
> istart = igstrt + 19 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, imnlin, ier )
> imdpth = 1
> imleft = 1
> imtop = 1
> imrght = imnpix
> imbot = imnlin
> rmxysc = 1.
> C
> C* Determine offset to start of data and data length
> C
> imdoff = igstrt + 512
> imldat = imnlin * ( imnpix * imdpth )
> C
> C* Verify that image scanning mode is left to right, top to bottom
> C
> istart = igstrt + 38 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, iscmod, ier )
> IF ( iscmod .ne. 0 ) THEN
> iret = -4
> RETURN
> END IF
> C
> C* Map projection type. (Octet 16)
> C*
> C* Value Projection
> C* ---------------------
> C* 1 Mercator
> C* 3 Lambert
> C* 5 Stereographic
> C
> istart = igstrt + 16 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, imapty, ier )
> IF ( imapty .eq. 1 ) THEN
> proj = 'MER'
> ELSE IF ( imapty .eq. 3 ) THEN
> proj = 'LCC'
> ELSE IF ( imapty .eq. 5 ) THEN
> proj = 'STR'
> ELSE
> iret = -4
> RETURN
> END IF
> C
> C* Get navigation items used in all projections.
> C*
> C* Get lat/lon of lower left point. (Octets 21-23, 24-26)
> C
> istart = igstrt + 21 - 1
> nbytes = 3
> negflg = .true.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, lat1, ier )
> rlat1 = ( lat1 / 10000. ) * DTR
> C
> istart = igstrt + 24 - 1
> nbytes = 3
> negflg = .true.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, lon1, ier )
> rlon1 = ( lon1 / 10000. ) * DTR
> C
> C* std - lat at which cone or cylinder intersects earth.
> C* (Octets 39-41)
> C
> istart = igstrt + 39 - 1
> nbytes = 3
> negflg = .true.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, latin, ier )
> std = latin / 10000.
> C
> C* Get items specific to each projection.
> C
> IF ( proj .eq. 'LCC' .or. proj .eq. 'STR' ) THEN
> C
> C* Lov - orientation of the grid (center longitude).
> C* (Octets 28-30)
> C
> istart = igstrt + 28 - 1
> nbytes = 3
> negflg = .true.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, lov, ier )
> clon = lov / 10000.
> CALL PRNLON ( 1, clon, ier )
> cntlon = clon * DTR
> C
> C* tdx and tdy direction grid increments. (Octets 31-33, 34-36)
> C
> istart = igstrt + 31 - 1
> nbytes = 3
> negflg = .true.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, jdx, ier )
> tdx = jdx / 10.
> istart = igstrt + 34 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, jdy, ier )
> tdy = jdy / 10.
> C
> C* Projection center flag (NP=0, SP=1). (Octet 37)
> C
> istart = igstrt + 37 - 1
> nbytes = 1
> negflg = .false.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, ipole, ier )
> IF ( ipole .eq. 1 ) THEN
> sign = - 1.
> dangl1 = - 90.
> END IF
> ELSE
> istart = igstrt + 28 - 1
> nbytes = 3
> negflg = .true.
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, lat2, ier )
> rlat2 = ( lat2 / 10000. ) * DTR
> istart = igstrt + 31 - 1
> CALL MV_BTOI ( ignhdr, istart, nbytes, negflg, lon2, ier )
> C
> C* Check for lon2 bug. Sign of lon2 was wrong in sample image
> C
> IF ( rlon1 .lt. 0 .and. lon2 .gt. 0 ) lon2 = - lon2
> rlon2 = ( lon2 / 10000. ) * DTR
> END IF
> C
> C* ***************************
> C* *** Polar Stereographic ***
> C* ***************************
> C
> IF ( proj .eq. 'STR' ) THEN
> C
> C* Linear coordinates of lower left point. (1+sin 90) is
> C* excluded.
> C
> x1 = RADIUS * TAN ( PI4TH - sign * rlat1 / 2. ) *
> + SIN ( rlon1 - cntlon )
> y1 = - RADIUS * TAN ( PI4TH - sign * rlat1 / 2. ) *
> + COS ( rlon1 - cntlon ) * sign
> C
> C* Compute grid spacing on the pole plane. (1+sin 90) is
> C* also excluded.
> C
> dx = tdx / ( 1. + SIN ( PI / 3. ) )
> dy = tdy / ( 1. + SIN ( PI / 3. ) )
> C
> C* Compute the linear coordinates of the upper right point.
> C* Assumes left to right, top to bottom image scanning.
> C
> x2 = x1 + ( imnpix - 1 ) * dx
> y2 = y1 + ( imnlin - 1 ) * dy * sign
> C
> C* Set lat/lon of upper right point and projection angles.
> C
> dlat2 = sign * ( HALFPI - 2. * ATAN2 ( SQRT ( ( x2 * x2 )
> + + ( y2 * y2 ) ), RADIUS ) ) * RTD
> y2 = - sign * y2
> dlon2 = ( cntlon + ATAN2 ( x2, y2 ) ) * RTD
> CALL PRNLON ( 1, dlon2, ier )
> C
> C* Set lat/lon of lower left point.
> C
> dlat1 = lat1 / 10000.
> dlon1 = lon1 / 10000.
> C
> C* Set projection angles. Angle1 is set to be 90 or -90.
> C
> dangl2 = clon
> dangl3 = 0.
> C
> ELSE IF ( proj .eq. 'LCC' ) THEN
> C
> C* *************************
> C* *** Lambert Conformal ***
> C* *************************
> C
> C* Compute the constant of the tangent cone.
> C
> psi = HALFPI - ( ABS ( std ) * DTR )
> ccone = COS ( psi )
> rearth = RADIUS / ccone
> C
> C* Compute the linear coordinate for the lower left grid point.
> C* The auxiliary function is excluded.
> C
> x1 = rearth * ( TAN ( ( HALFPI - sign * rlat1 ) / 2. ) **
> + ccone ) * SIN ( ccone * ( rlon1 - cntlon ) )
> y1 = - rearth * ( TAN ( ( HALFPI - sign * rlat1 ) / 2. ) **
> + ccone ) * COS ( ccone * ( rlon1 - cntlon ) ) * sign
> C
> C* Recompute grid spacing. Alpha is the constant term in the
> C* map scale factor.
> C
> alpha = SIN ( psi ) / ( TAN ( psi / 2. ) ** ccone )
> dx = tdx / alpha
> dy = tdy / alpha
> C
> C* Compute the linear coordinates for the upper right grid
> C* point. Assumes left to right, top to bottom image scanning.
> C
> x2 = x1 + ( imnpix - 1 ) * dx
> y2 = y1 + ( imnlin - 1 ) * dy * sign
> C
> C* Compute the lat/lon coordinates of the upper right point.
> C
> rlat2 = sign * ( HALFPI - 2. * ATAN ( ( SQRT ( ( x2 * x2 ) +
> + ( y2 * y2 ) ) / rearth ) ** ( 1. / ccone ) ) )
> dlat2 = rlat2 * RTD
> y2 = - sign * y2
> rlon2 = cntlon + ATAN2 ( x2, y2 ) * ( 1. / ccone )
> C
> dlon2 = rlon2 * RTD
> CALL PRNLON ( 1, dlon2, ier )
> C
> C* Set the lat/lon coordinates of the lower left point.
> C
> dlat1 = lat1 / 10000.
> dlon1 = lon1 / 10000.
> C
> C* Set projection angles.
> C
> dangl1 = std
> dangl2 = clon
> dangl3 = dangl1
> C
> ELSE IF ( proj .eq. 'MER' ) THEN
> C
> C* ****************
> C* *** Mercator ***
> C* ****************
> C
> C* Compute lat/lon of lower left and upper right points.
> C* Make sure that the longitudes are between -180 and +180.
> C
> IF ( rlat1 .gt. rlat2 ) THEN
> temp = rlat1 * RTD
> dlat1 = rlat2 * RTD
> dlat2 = temp
> C
> temp = rlon1 * RTD
> dlon1 = rlon2 * RTD
> dlon2 = temp
> ELSE
> dlat1 = rlat1 * RTD
> dlat2 = rlat2 * RTD
> dlon1 = rlon1 * RTD
> dlon2 = rlon2 * RTD
> END IF
>
> CALL PRNLON ( 1, dlon1, ier )
> CALL PRNLON ( 1, dlon2, ier )
> C
> C* Set projection angles.
> C
> dangl1 = 0.
> dangl2 = 0.
> dangl3 = 0.
> END IF
> C
> C* Set navigation block.
> C
> CALL GR_MNAV ( proj, imnpix, imnlin, dlat1, dlon1, dlat2,
> + dlon2, dangl1, dangl2, dangl3, .true.,
> + rnvblk, ier )
> C
> C* Set the map projection.
> C
> CALL GSMPRJ ( proj, dangl1, dangl2, dangl3,
> + dlat1, dlon1, dlat2, dlon2, ier )
> C*
> IF ( ier .ne. 0 ) iret = -5
> C
> RETURN
> END
#include <stdio.h>
#include <unistd.h>
main()
{
int isinit=!0;
size_t nbytes;
unsigned char buf[8192];
while ( ( nbytes = read(STDIN_FILENO, buf, (size_t)8192) ) > 0 )
{
if ( isinit )
{
if ( buf[22] == 99 ) buf[22] = (unsigned char)10;
if ( buf[24] == 27 ) buf[24] = (unsigned char)5;
isinit = 0;
}
write(STDOUT_FILENO, buf, nbytes);
}
}
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