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Re: Map Projections [message #69504 is a reply to message #27969]

Mon, 18 January 2010 09:41

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Bennett writes:

> I am currently simply following your example and selecting the middle
> left, top, right and bottom as my limits. I should probably be doing
> a different calculation to retrieve these points since I don't have
> the nicely oriented data. Poor map projection knowledge = rough road.

It has been a rough road for me, too. About two years
of it. And every time I am *sure* I know what I am doing,
it is proven otherwise. My map projection articles
reflect this start and stop progress. (The only way
I know to make certain progress is to write an
article about what I *think* I know!) But, you might
want to read this article:

http://www.dfanning.com/map_tips/iceshelf.html

That will probably get you closer to where you want to
go then the article you are reading now.

Of course, eventually I am going to put all this together
into a book that will secure my financial future. But in the
meantime, you will have to piece it together. If you look
at it in a certain way, it's actually fun. ;-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Map projections By: James Kuyper on Mon, 12 November 2001 07:55
		Re: map projections By: jeffnettles4870 on Wed, 13 February 2008 14:04
		Re: Map Projections By: David Fanning on Fri, 15 January 2010 13:12
		Re: Map Projections By: Juggernaut on Mon, 18 January 2010 05:16
		Re: Map Projections By: David Fanning on Fri, 15 January 2010 12:52
		Re: Map Projections By: Juggernaut on Mon, 18 January 2010 09:28
		Re: Map Projections By: Juggernaut on Mon, 18 January 2010 11:00
		Re: Map Projections By: David Fanning on Mon, 18 January 2010 09:41

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