| Map Projections like Matrices [message #79835] |
Fri, 06 April 2012 14:00 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
One of the reasons I feel weary today is that map projections
are just like matrices when you are working in projected
meter space.
You set them up by specifying a limit like this:
limit = [latmin, lonmin, latmax, lonmax]
But, the uv_box that contains the projected XY
values of this limit (at least, it is *suppose*
to, but doesn't, the source of much frustration
today) is set up like this:
uv_box = [lonmin, latmin, lonmax, latmax]
Sheesh! Keeping it straight is enough to drive
you to drink, which, come to think of it....it
*is* Friday!
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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