| xmargin and ymargin keywords ignored in cgplot [message #86780] |
Tue, 03 December 2013 00:29  |
Xin Tao
Messages: 40
Registered: April 2011
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Member |
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Hi all,
I just noticed that cgplot in David's coyote library doesn't seem to take xmargin and ymargin keywords. These keywords are not listed in the doc of cgplot, so I guess they are passed via " _REF_EXTRA=extra". Could someone please tell me how to make these two keywords effective? Thanks a lot.
Sample code:
cgplot, [0], xmargin = [10, 20]
produces a figure looks exactly the same as
cgplot, [0], xmargin = [10, 2]
but vastly different from
plot, [0], xmargin = [10, 2]
Best,
Xin Tao
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| Re: xmargin and ymargin keywords ignored in cgplot [message #86783 is a reply to message #86780] |
Tue, 03 December 2013 05:12  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Xin Tao writes:
> I just noticed that cgplot in David's coyote library doesn't seem to take xmargin and ymargin keywords. These keywords are not listed in the doc of cgplot, so I guess they are passed via " _REF_EXTRA=extra". Could someone please tell me how to make these two keywords effective?
I guess you can file this under the personal quirk category, but I don't
believe in margins. I believe in positioning things with the POSITION
keyword. The reason for this is that I know where things are going to go
when I use the Position keyword, since normalized units mean the same
thing everywhere. Margins are specified using *character* units and I
find them confounding and impossible to work with. You can't match up
different kinds of plots using them. You don't know where things are in
the window, etc. I find them a nightmare. It's the same reason you will
never find me using a TVSCL command. :-)
If you want to use them, you will have to find the section of code that
defines the default plot position and get rid of it. But, if you do, I
can practically guarantee you will run into other problems with Coyote
Graphics routines.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")
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| Re: xmargin and ymargin keywords ignored in cgplot [message #86791 is a reply to message #86783] |
Tue, 03 December 2013 17:04 |
Xin Tao
Messages: 40
Registered: April 2011
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Member |
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Thanks David. I'll think about using POSITION instead of margins with cgplot. Don't want to break other routines of mine using CG. :-)
Best,
Xin Tao
On Tuesday, December 3, 2013 9:12:05 PM UTC+8, David Fanning wrote:
> Xin Tao writes:
>
>
>
>> I just noticed that cgplot in David's coyote library doesn't seem to take xmargin and ymargin keywords. These keywords are not listed in the doc of cgplot, so I guess they are passed via " _REF_EXTRA=extra". Could someone please tell me how to make these two keywords effective?
>
>
>
> I guess you can file this under the personal quirk category, but I don't
>
> believe in margins. I believe in positioning things with the POSITION
>
> keyword. The reason for this is that I know where things are going to go
>
> when I use the Position keyword, since normalized units mean the same
>
> thing everywhere. Margins are specified using *character* units and I
>
> find them confounding and impossible to work with. You can't match up
>
> different kinds of plots using them. You don't know where things are in
>
> the window, etc. I find them a nightmare. It's the same reason you will
>
> never find me using a TVSCL command. :-)
>
>
>
> If you want to use them, you will have to find the section of code that
>
> defines the default plot position and get rid of it. But, if you do, I
>
> can practically guarantee you will run into other problems with Coyote
>
> Graphics routines.
>
>
>
> Cheers,
>
>
>
> David
>
> --
>
> David Fanning, Ph.D.
>
> Fanning Software Consulting, Inc.
>
> Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
>
> Sepore ma de ni thue. ("Perhaps thou speakest truth.")
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