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Re: Reverse engineering the new graphics PLOT() margin property? [message #79902 is a reply to message #79874]

Mon, 16 April 2012 18:54

Mark Piper
Messages: 198
Registered: December 2009

Senior Member

On Thursday, April 12, 2012 11:37:45 AM UTC-6, Sean Davis wrote:
> I was wondering if anyone has figured out how the default margins are determined in new graphics?
>
> On a related note, it is infuriating that there is no way to return the values of INIT properties like margin, position, etc. (unless I'm missing something!)
>
> What I'd really like to be able to do is the following --
>
> p = plot(findgen(20))
>
> print, p.margin

Hi Sean,

I agree, we should be able to get these plot properties that we can set on init. I'll enter a bug report.

In the meantime, I think this works (though I haven't tested it thoroughly):

IDL> p = plot(findgen(10)^2)
IDL> r = transpose([[p.xrange], [p.yrange]])
IDL> m = p.convertcoord(r, /data, /to_normal)
IDL> print, m
0.13000000 0.13000000 0.00000000
0.92000000 0.89000000 0.00000000

Check:

IDL> print, p.convertcoord(m, /normal, /to_data)
8.8817842e-016 0.00000000 0.00000000
10.000000 100.00000 0.00000000

mp

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[Message index]

		Re: Reverse engineering the new graphics PLOT() margin property? By: Sean[1] on Wed, 18 April 2012 14:15
		Re: Reverse engineering the new graphics PLOT() margin property? By: Mark Piper on Mon, 16 April 2012 18:54
		Re: Reverse engineering the new graphics PLOT() margin property? By: David Fanning on Sun, 15 April 2012 12:15
		Re: Reverse engineering the new graphics PLOT() margin property? By: lecacheux.alain on Sun, 15 April 2012 10:49
		Re: Reverse engineering the new graphics PLOT() margin property? By: David Fanning on Sun, 15 April 2012 07:00
		Re: Reverse engineering the new graphics PLOT() margin property? By: lecacheux.alain on Sun, 15 April 2012 04:15
		Re: Reverse engineering the new graphics PLOT() margin property? By: David Fanning on Fri, 13 April 2012 14:10
		Re: Reverse engineering the new graphics PLOT() margin property? By: David Fanning on Fri, 13 April 2012 14:00
		Re: Reverse engineering the new graphics PLOT() margin property? By: Jim Pendleton on Fri, 13 April 2012 13:46

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