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Re: Problem with labeling contour lines in IDL [message #65428]

Wed, 04 March 2009 12:46

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

ed.schmahl@gmail.com writes:

> Maybe I'm doing something different, but this little script in Direct
> Graphics seems to produce nonlinear annotation almost correctly:
>
> d=3Dshift(dist(100),50,50)
> g=3Dexp(-d^2/400)
> c_annotat=3D['0.1','0.2','0.4','0.8','1.6','3','6','12','25' ,'50','98']
> lev =3D max(g)* float(c_annotat)/100.
> contour,g,c_annot=3Dc_annotat,lev=3Dlev
>
> The only thing wrong that I can see is that the .98 label doesn't
> appear, but all the other contours are labeled properly.

I think the word "linear" in Nusret's post was a red herring.
I like to think that contours need to be "long enough" to
be interrupted by a break for a contour label. What "long
enough" means is unclear, but I know for a fact we have no
control over it. In this case, you would see a contour label
for the 0.98 contour, if you made your window twice as big.

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: Problem with labeling contour lines in IDL By: David Fanning on Wed, 04 March 2009 12:46
		Re: Problem with labeling contour lines in IDL By: ed.schmahl on Wed, 04 March 2009 12:34
		Re: Problem with labeling contour lines in IDL By: ed.schmahl on Wed, 04 March 2009 12:30
		Re: Problem with labeling contour lines in IDL By: David Fanning on Wed, 04 March 2009 06:10
		Re: Problem with labeling contour lines in IDL By: Nusret Sevinç on Tue, 10 March 2009 01:57

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