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[McIDAS #JGN-249914]: IMGMAKE

Hi Mike,

re:
> First thing's first, I've been doing quite a bit with GOES16 and
> McIDAS since the release and almost everything has gone very very
> well.  I'm still very happy with how everything is working.

Hmm... the 'almost' in the sentence doesn't bode well :-(

re:
> However, there is one problem I seem to be having, IMGCOPY.  Some
> example commands are below, but when I try to IMGCOPY a data set and
> then plot the copy, all I see is white.

Wow!

re:
> For context, I'm doing this because I want to remap one data set (ABI
> band 02) based on another data set's projection (ABI band 01) using
> IMGREMAP PRO=DEST.

OK.

As an aside comment: the only time the projection would be different
is if you are remapping a Full Disk image over a CONUS image since the
last images sent in NOAAPort still had different projections for the
Full Disk, CONUS and Puerto Rico sectors.

re:
> I need to do this in order to combine data sets of
> different spatial resolutions.  IMGREMAP itself doesn't have any
> problems, and if my first data set is copied via IMGREMAP then the
> second one with PRO=DEST works just fine.  But IMGCOPY does not seem
> to copy either the data, nor the data's projection information, so the
> subsequent IMGREMAP yields no data as well.

Yikes, this is VERY bad indeed!

I just ran an IMGCOPY test on locally stored, NOAAPort-delivered, ldm-alchemy
stitched together CONUS band 1 and IMGDISP displayed it, and my values are
all black, not white.  The navigation, however, is correct.

re:
> Simple example:
> IMGCOPY NPGOESR/CONUSC01 GOESR.2 SIZE=ALL
> IMGDISP GOESR.2 LAT=37 90 MAG=-4

Another aside comment:

Following your example, I IMGCOPYed an RTGOESR CONUSC01 image to a
local AREA dataset (MYDATA/IMAGES) and found that the copy would fail
with a totally unexpected error when SIZE=ALL was specified:

IMGCOPY RTGOESR/CONUSC01 MYDATA/IMAGES.3001 SIZE=ALL
IMGCOPY: No images satisfy the selection criteria
IMGCOPY: done
IMGCOPY failed, RC=1

I found, however, that the IMGCOPY will work if one specifies SIZE=SAME,
and the IMGDISP of the IMGCOPYed image was identical to the original.
The failure on SIZE=ALL appears to be a bug in the SSEC ABIN AGET server,
but I'll need to do some more investigating before I report it.

Back to the problem at hand...

re:
> White image, though oddly enough the information on the frame label
> (e.g. date, time, satellite) are accurate on the copy.

And, for me, at least, the navigation is also correct.

re:
> Following the above commands with these:
> 
> IMGREMAP NPGOESR/CONUSC02 GOESR.2 PRO=DEST
> IMGDISP GOESR.2 LAT=37 90 MAG=-4
> 
> Also a white image.

In my test, the result was a black display, not a white one.  Equally
incorrect, of course...

re:
> While the textual output from these commands yields no errors, IMGCOPY
> doesn't appear to be doing its job.  If that's the case, I figured
> you'd want to know.

Yes, absolutely.  I'm debugging now...

re:
> Hope all is well,

It was _until_ I got your email :-(

I'll let you know what I come up with.

Thanks for reporting this!
Cheers,

Tom
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Ticket Details
===================
Ticket ID: JGN-249914
Department: Support McIDAS
Priority: Normal
Status: Open
===================
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