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Re: Special Characters in IDL [message #35376 is a reply to message #35375]

Fri, 30 May 2003 10:14

Liam E. Gumley
Messages: 378
Registered: January 2000

Senior Member

"David Fanning" <david@dfanning.com> wrote in message
news:MPG.19413b86cef0dbd7989bb9@news.frii.com...
> Have you ever tried to use special characters in IDL (I'm
> thinking specifically of the less-than-or-equal sign) *and*
> get them to print in PostScript?
>
> That was just a bit more complicated than I wanted it
> to be. (How come there is no reference to "unicode" in
> the IDL documentation!?) Anyway, because I don't want to
> go through that again, I wrote up a little article about
> it. You can find it in the usual place.

An alternative for plotting mathematical symbols is TeXtoIDL by Matthew
Craig:

http://physweb.mnstate.edu/mcraig/TeXtoIDL/

For example, to plot a "less than or equal to" symbol:

IDL> xyouts, 0.5, 0.0, textoidl('\leq'), /normal

It works identically for vector and PostScript fonts. To view the symbols
supported by TeXtoIDL:

IDL> showtex

More details are on pages 255-257 of my book (see link below).

Cheers,
Liam.
Practical IDL Programming
http://www.gumley.com/

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		Re: Special Characters in IDL By: David Fanning on Fri, 30 May 2003 10:41
		Re: Special Characters in IDL By: Liam E. Gumley on Fri, 30 May 2003 10:14

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