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Re: Iplot x labeling [message #54354 is a reply to message #54345]

Sun, 03 June 2007 17:26

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> This works:
>
> IDL> iplot, x, y, xtickvalues=x, xmajor=5, xrange=[-6.5, 7.5], $
> xtickname=Strtrim(x,2)
>
> Which leads me to wonder if this is a documentation problem, rather
> than an iPlot problem. The solution has an "object graphics" flavor
> to it that the technical writer might have missed.

Humm. Well, when I started to write an article about this, I
realized this is wrong, too. Consider the following code:

IDL> x = [-6.1, -4.3, 1.25, 5.1, 7.0]
IDL> y = [5, 4, 3, 4, 5]
IDL> iPlot, x, y, XRANGE=[-6.5, 7.5], XMAJOR=5, XTICKVALUES=x, $
XTICKNAME=String(x, Format='(F5.2)'), SYM_INDEX=7

Notice that the labels and the actual plotted values are not
aligned. :-(

I don't know. But this is clearly not right and I haven't been
able to come up with anything to make it right in 30 minutes
of effort. This is in IDL 6.4.

I guess I would report this as a bug.

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: Iplot x labeling By: jochem.verelst@gmail. on Mon, 04 June 2007 12:19
		Re: Iplot x labeling By: David Fanning on Sun, 03 June 2007 17:26
		Re: Iplot x labeling By: David Fanning on Sun, 03 June 2007 06:29
		Re: Iplot x labeling By: jochem.verelst@gmail. on Sat, 02 June 2007 00:25
		Re: Iplot x labeling By: Michael Galloy on Fri, 01 June 2007 16:05

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