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Re: Problem with labeling contour lines in IDL [message #65430 is a reply to message #65428]

Wed, 04 March 2009 12:34

ed.schmahl
Messages: 11
Registered: October 2008

Junior Member

On Mar 4, 7:10 am, David Fanning <n...@dfanning.com> wrote:
> Nusret Sevin writes:
>> I have a problem with labeling contour lines in IDL:
>> ...
>> Is there a way that I can force IDL to put labels on nonlinear parts?
>
> You have almost no control over contour line labeling
> in IDL direct graphics. If you want control, you are
> going to have to switch to object graphics. If I were
> going to do this, I would start with something like
> XContour, which is very old and needs to be updated,
> but which has many of the parts you will need already
> in place. Perhaps you can update it for the rest of us. :-)
>
> http://www.dfanning.com/programs/xcontour.pro

Nusret, David,

Maybe I'm doing something different, but this little script in Direct
Graphics seems to produce nonlinear annotation almost correctly:

d=shift(dist(100),50,50)
g=exp(-d^2/400)
c_annotat=['0.1','0.2','0.4','0.8','1.6','3','6','12','25',' 50','98']
lev = max(g)* float(c_annotat)/100.
contour,g,c_annot=c_annotat,lev=lev

The only thing wrong that I can see is that the .98 label doesn't
appear, but all the other contours are labeled properly.

Ed Schmahl

>
> 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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