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Re: Plotting a Text Box below a plot so that also works when !P.MULTI is set. [message #13624 is a reply to message #13615]

Sun, 22 November 1998 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Martin Schultz (mgs@io.harvard.edu) writes:

> Hey David!
>
> Wasn't it you yourself who told me about !x.window and !y.window which store
> the size of the current plot window? As a first try you could position your
> text with something like
> px = (!x.window[0]+!x.window[1])/2.
> py = !y.window[0]
> xyouts,px,py,yourtext,/norm,align=0.5
> and if you use the !x.margin and !y.margin keywords, you may even be able to
> prevent the plot and the text box from running into each other.

All true, but NOT, I think, with !P.Multi. For one thing, the
!X.Window parameters are not set until *after* the plot is
made. It would be possible, probably, to use !P.Multi to do
some of the nasty calculating for you. Especially with respect
to calculating the proper character size, etc. for the plots.
I did something similar with a complicated plot object I
created some time ago that had to plot itself into a window
grid. But the actual plots were drawn with the parameters
that I got from !P.Multi, not by using it directly.

> The beauty of !p.multi is that you can easily specify the number of rows and
> columns without having to go through these non-trivial calculations of the
> position parameter. I don't think one should drop this too fast.

!P.Multi is beautiful. In fact, more beautiful and useful than
most people realize. But I still think it is not the correct
choice for this particular application.

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Progamming: http://www.dfanning.com/
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[Message index]

		Re: Plotting a Text Box below a plot so that also works when !P.MULTI is set. By: David L. Windt on Mon, 23 November 1998 00:00
		Re: Plotting a Text Box below a plot so that also works when !P.MULTI is set. By: davidf on Sun, 22 November 1998 00:00
		Re: Plotting a Text Box below a plot so that also works when !P.MULTI is set. By: Martin Schultz on Sun, 22 November 1998 00:00
		Re: Plotting a Text Box below a plot so that also works when !P.MULTI is set. By: davidf on Fri, 20 November 1998 00:00

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