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Re: get image data of projected scenes [message #73830 is a reply to message #73829]

Wed, 01 December 2010 13:06

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

chris writes:

> Hm, let's make the assumption it is a rectangle. Maybe I can get the
> image center and pivot it 'back' using the angle between y-axis and
> along track. What I don't know is what would be better in terms of
> 'precision'. The grid interpolation or the pivot?
>
> What do you mean?

Mostly I mean I can't make heads or tails out of what
you are talking about from your questions. :-)

If this is a projected image, and the data you want is
a rectangle, then there is certainly a rotation of your
map projection that will put the rectangle in a proper
XY coordinate system, where all of this will be very
much easier to deal with.

But I don't have any idea what we are talking about,
so mostly I'm just waving my hands around. I've worked
about 40 days straight, I don't want to work on my book
today, I've answered all my mail, and I'm just fooling
around, drinking a beer. :-)

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]

		Re: get image data of projected scenes By: rogass on Wed, 01 December 2010 13:19
		Re: get image data of projected scenes By: David Fanning on Wed, 01 December 2010 13:06
		Re: get image data of projected scenes By: rogass on Wed, 01 December 2010 12:42
		Re: get image data of projected scenes By: David Fanning on Wed, 01 December 2010 12:29
		Re: get image data of projected scenes By: rogass on Wed, 01 December 2010 12:14
		Re: get image data of projected scenes By: David Fanning on Wed, 01 December 2010 11:50

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