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Re: Contour overlay - control orientation? [message #84139 is a reply to message #84135]

Fri, 26 April 2013 09:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Gurd writes:

> I wander if it possible to make a contour plot, than change the orientation and overlay it on another image.
> In other words: I have two images of the same object at different wavelengths. One of the two has no WCS, but I know the relative orientation. Instead of going through the process rotating one of the images it would be nice to change just the contours orientation. Is it possible?

I suppose it depends on what you mean by "I have the contours". If you
mean you know the points that make up a contour line (ie, you obtained
the contour by means of ISOCONTOUR or the PATH** keywords to the CONTOUR
command), then it is fairly easy to "rotate" them. It is probably harder
to decide upon which point they should be "rotated" about. :-)

If this is not what you mean, I think it would be easier to rotate the
image.

Cheers,

David

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

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[Message index]

		Re: Contour overlay - control orientation? By: David Fanning on Fri, 26 April 2013 10:25
		Re: Contour overlay - control orientation? By: DAVIDE LENA on Fri, 26 April 2013 10:08
		Re: Contour overlay - control orientation? By: David Fanning on Fri, 26 April 2013 09:04

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