| Re: questions onn symbol and fonts [message #69580] |
Fri, 05 February 2010 19:44 |
penteado
Messages: 866
Registered: February 2018
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Senior Member
Administrator |
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On Feb 5, 3:09 am, "Mr.G" <gameplay...@gmail.com> wrote:
> I have problems typing greek and mathmatical symbols in my plots. For
> example, \frac{a}{b} seems impossible for me to type. I thought
> textoidl might help, however, I found that it only supports for latex
> greek symbols, not math symbols. Besides, it seems that ps font is
> not supported? On the documents it says that the keyword "font" can be
> set, but in practice, the program echos error message when I set the
> keyword. Anyone has ideas?
See the help, on
IDL API Reference Guides > IDL Reference Guide > Part III: Appendices
> Fonts > Formatting Command Examples
for an example with about the most complicated that can be done.
Fractions cannot be done directly in IDL, as far as I know.
Also, see
http://groups.google.com/group/comp.lang.idl-pvwave/browse_t hread/thread/86ff325e0b4dfbe2#
for more options on how to use greek letters.
I think the simplest way you could put more complicated expressions
from within IDL is to generate them somewhere else, then import them
from a bitmap or vector file, and place them in your graphics.
Other than that, all I can think of would be to write a complicated
program to parse a subset of LaTeX, and generate the vector or bitmap
graphics, directly from IDL. But that would be by no means easy.
Perhaps the simplest way to do it would be to find a LaTeX library
that would do the job, and then create a DLM to use as a wrapper. Like
whatever it is they use at http://mathurl.com/. But still, not simple
to do. Maybe if someday I find myself with nothing to do for several
days...
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| Re: questions onn symbol and fonts [message #69600 is a reply to message #69580] |
Fri, 05 February 2010 08:43  |
pgrigis
Messages: 436
Registered: September 2007
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Senior Member |
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On Feb 5, 12:09 am, "Mr.G" <gameplay...@gmail.com> wrote:
> Dear All,
>
> I have problems typing greek and mathmatical symbols in my plots. For
> example, \frac{a}{b} seems impossible for me to type. I thought
> textoidl might help, however, I found that it only supports for latex
> greek symbols, not math symbols. Besides, it seems that ps font is
> not supported? On the documents it says that the keyword "font" can be
> set, but in practice, the program echos error message when I set the
> keyword. Anyone has ideas?
IDL simply does not have the capability of having anything
more then the simplest symbols in plots. So either you live
with that, or if you really need high-quality labels, the way
to go is to use the external package "psfrag" with LaTeX on
IDL-produced plots. It is time consuming and not exactly
painless, but it will deliver the best possible looking
symbols & equations in your plots.
Ciao,
Paolo
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