| Re: David's TVSCALE [message #55740 is a reply to message #55739] |
Sun, 09 September 2007 13:05   |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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maye writes:
> David's TVSCALE and TVIMAGE programs nicely calculate the positions
> required for multiplots (using !p.multi), but I would like to control
> the output-size per assigned space in the multiplot window.
> Example:
> If I set
> !p.multi=[0,2,2]
> so that I have 4 subframes to fill, I would like to tell TVSCALE (or
> TVIMAGE), that it should not use the whole of that quarter window, but
> only the lower 80% or so of it, so that I have space to put a colorbar
> on top of each subframes.
> But the position keyword of TVSCALE seems to be ignored for
> multiplots?
> So how could I do it? I basically would like 4 subframes each having
> their own colorbar on top of the displayed image.
This is called wanting to have your cake and eat it, too.
Generally speaking, it is not allowed in life OR in IDL. :-)
For four frames, you could probably figure out the math you
need to draw the plots directly in your head, but if not, I
suppose you could modify TVSCALE itself. The way it is made
to work with !P.MULTI is that draws an "invisible" plot to
get the "position" coordinates where the image is suppose
to go. You could certainly change those position coordinates
to suit yourself and leave room for a colorbar that you would
insert into the code at this location, too.
I'd do it for you, except then I would have to worry about
*where* you wanted to put the darn colorbar, etc.
And, as I say, calculating the position coordinates for just
four frames seems so simple that it doesn't seem worth the
work it would take to do it.
If all the colors are the same, another alternative is one
colorbar below all the images. You could use the ![XY].OMARGIN
system variables to leave room for this color bar.
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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