| Earth Symbol [message #75475] |
Sun, 13 March 2011 10:26  |
Tim Bovaird
Messages: 4
Registered: March 2011
|
Junior Member |
|
|
Has anyone came up with a method to print the earth symbol (\oplus in
latex)? Same question has been asked for the sun symbol and answered
with the sunsymbol function, however I haven't been able to find a
solution anywhere for the earth symbol. Any help would be appreciated.
Thanks, Tim
|
|
|
|
| Re: Earth Symbol [message #75642 is a reply to message #75475] |
Tue, 15 March 2011 07:21  |
wlandsman
Messages: 743
Registered: June 2000
|
Senior Member |
|
|
On Monday, March 14, 2011 3:31:37 PM UTC-4, David Fanning wrote:
> The
> real problem is that IDL does not come with
> an installed Unicode font that can be used.
> You have to go looking for one.
I agree with this. I remember when IDL 8.0 first came out, I went through a series of good news -- bad news discoveries.
Good News: IDL 8.0 allows one to use a TeX-like syntax for mathematical symbols
Bad News: The Sun symbol is not listed among the available symbols in the PLOT() help
Good News: The Sun symbol *is* listed in the tex2idl code used by PLOT()
Bad News: The tex2idl Sun symbol requires a Unicode font and I can't figure out how to use a Unicode font with IDL on my Mac/Linux machines.
So I agree that having an installed Unicode font for IDL would be an important addition for a scientific plotting language. --Wayne
|
|
|
|
| Re: Earth Symbol [message #75653 is a reply to message #75475] |
Mon, 14 March 2011 12:33 |
Michael Galloy
Messages: 1114
Registered: April 2006
|
Senior Member |
|
|
On 3/14/11 12:47 PM, Paulo Penteado wrote:
> On Mar 14, 1:31 pm, Michael Galloy<mgal...@gmail.com> wrote:
>> Well, you can use the new LaTeX commands with direct graphics if you use
>> the new TEX2IDL routine distributed with IDL 8.0:
>>
>> IDL> xyouts, 0.5, 0.5, charsize=5., /normal, tex2idl('$\oplus$'), font=1
>
> Was this ever mentioned anywhere? I had never heard of tex2idl(). It
> does not seem to be present in the help.
It's there in the lib/graphics directory, but since it's not documented,
I supposed it could go away in any future release. It was update to my
review of the new graphics system (not sure when I had added that):
http://michaelgalloy.com/2010/08/12/idl-8-0-a-new-graphics-i nterface.html
Mike
--
www.michaelgalloy.com
Research Mathematician
Tech-X Corporation
|
|
|
|
| Re: Earth Symbol [message #75654 is a reply to message #75475] |
Mon, 14 March 2011 12:31 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
wlandsman writes:
> Unfortunately, while tex2idl() has the Earth symbol \oplus,
it does not have the Sun symbol \odot, which remains a perpetual problem
(for publishable fonts) in IDL. (The unicode font mentioned by Chris
Torrence does not appear to be on either my Linux or Mac machines.)
The version of tex2IDL() I am looking at has
the Sun symbol, but as a Unicode value. The
real problem is that IDL does not come with
an installed Unicode font that can be used.
You have to go looking for one. Then you have
to install it in the IDL distribution, modify
the ttfont.map file to locate it, etc., etc.
It is *slightly* easier in Windows, because you
can use the fonts that are installed in the normal
Windows/fonts directory just by naming them. But,
even then, it is difficult to get the thing working
everywhere. (I just tried adding the Sun and Earth
symbol the the Greek program I have.)
The problem there is that you have to "install"
the true-type Unicode font you want to use:
Device, Set_Font='Arial Unicode MS', /TT_Font
But this doesn't "transfer" to the PostScript device.
So, even if you get it working on your computer, there
is no guarantee it is going to work in PostScript. You
have to Set_Plot to PostScript, then issue the *same*
Device command as above, and THEN it works everywhere.
It just seems too darn complicated to be useful.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
|
|
|
|
| Re: Earth Symbol [message #75655 is a reply to message #75475] |
Mon, 14 March 2011 12:13 |
wlandsman
Messages: 743
Registered: June 2000
|
Senior Member |
|
|
On Monday, March 14, 2011 2:47:24 PM UTC-4, Paulo Penteado wrote:
> Was this ever mentioned anywhere? I had never heard of tex2idl(). It
> does not seem to be present in the help.
Well the ability to use LateX symbols in PLOT() was one of the new features advertised in IDL 8.0, and tex2idl() is the function called internally by PLOT() to accomplish this. For example, the online help for the TITLE keyword to PLOT() describes how to use Latex notation in IDL plots.
Unfortunately, while tex2idl() has the Earth symbol \oplus, it does not have the Sun symbol \odot, which remains a perpetual problem (for publishable fonts) in IDL. (The unicode font mentioned by Chris Torrence does not appear to be on either my Linux or Mac machines.) --Wayne
|
|
|
|
| Re: Earth Symbol [message #75656 is a reply to message #75475] |
Mon, 14 March 2011 11:58 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
Paulo Penteado writes:
> Was this ever mentioned anywhere? I had never heard of tex2idl(). It
> does not seem to be present in the help.
The publicist was promoted from the IT department, where
he previously designed inaccessible web pages. :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
