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Re: Whither Contour XY data
| Re: Whither Contour XY data [message #69555] |
Thu, 21 January 2010 10:02 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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M. Katz writes:
> I'm looking for a way to generate and extract a single contour level's
> (floating point) XY information form a given surface.
>
> Starting with a 2D intensity array, it is very clear how to use the
> CONTOUR procedure's PATH_XY keyword to get this exact information. But
> shouldn't it also exist in some form that is not tied to a direct
> graphics routine? I know, I could use a PIXMAP to avoid displaying the
> graphics. I also suppose that I could also use the IDLgrContour
> object. But both of these seem like a lot of unnecessary overhead if I
> don't have any intention of plotting or rendering graphics with this
> information.
>
> Is there a straightforward
> xy = CONTOUR_XY(array, threshold)
> function that I'm not aware of?
ISOCONTOUR.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thue. ("Perhaps thos speakest truth.")
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