[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20041217: that pesky seam when combining images with IMGREMAP (cont.)

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: 20041217: that pesky seam when combining images with IMGREMAP (cont.)
  • Date: Fri, 17 Dec 2004 10:20:57 -0700
>From: Owen Cooper <address@hidden>
>Organization: Aeronomy Laboratory/NOAA
>Keywords: 200412151752.iBFHqalI029160 McIDAS IMGREMAP MERC MERGE

Owen,

>Okay, so now I'm a little confused. I thought that by specifying 
>PRO=MERC in my combined images I was specifying a non-conical 
>projection. Is mercator a conical projection?

The McIDAS MERCator projection is not a true Mercator projection.  Even
so, I guess I should have phrased things a bit differently:

The compositing I am doing with a satellite-based projection (rotated
Meteosat) does not exhibit the missing element slice.  Composites
produced by non-satellite remaps (MERCator for you and Polar
Stereograhpic for Jennie (and I tried RECTilinear yesterday)), all seem
to exhibit the missing element slice.  I don't know if this is
significant, but it _feels_ like it should be.

By the way, attached to you email was a notice of a new email address
for you.  If your email address has changed, you should unsubscribe
your old email address(es) from all Unidata-maintained lists and
then resubscribe using your new address.  Thanks for doing this; it
will save us a bunch of bounced support mail.

Cheers,

Tom
--
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publicly available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.