[R] Problems with PostScript Encoding

[Prof Brian Ripley]

Please read the posting guide and supply the information asked for and the 
minimal reproducible example asked for.

I suspect the issue is how you selected 'alpha', but another issue is if 
you mean the mathematical symbol alpha or the Greek letter alpha, for the 
solution is different in the two cases.


On Wed, 20 Aug 2008, FScottDahlgren wrote:

>
> Hello all,
>
>
> I suspect my problem is not new: I am having difficulty getting an alpha
> character to print in a PostScript file made by R graphics (in my legend).
> At first, I figured out how to actually get the character on the screen;
> however, when I saved the graphic to a PostScript file the alpha character
> was replaced by "..".
>
>
> Obviously, something is not working when encoding.  I've tried to change the
> encoding using ps.options; however, no matter what I try R encodes the file
> using ISOLatin1Encoding.  I'm not even certain that changing the encoding
> type would solve my problem.  I really do not want to resort to using
> another file format, as the resulting images are inferior.  Is there
> something I'm missing here?

Rather a lot ... see the above.

>
> My current solution to the problem: editing the PostScript by hand.  I am no
> PostScript wizard, so it is not particularly pretty.  Here is what the code
> originally looks like:
>
>
> /ps 12 def /Font1 findfont 12 s
> 0 setgray
> 167.68 434.79 (..=0.05) 0 0 0 t
> 167.68 420.39 (..=0.005) 0 0 0 t
> 167.68 405.99 (..=0.0005) 0 0 0 t
>
>
> and here is what I've changed it to:
>
>
> /ps 12 def /Font1 findfont 12 s
> 0 setgray
> 167.64 317.78 (Lower Limit,     = 0.05) 0 0 0 t
> 167.64 303.38 (Upper Limit,     = 0.05) 0 0 0 t
> /Symbol 12 selectfont 240 303.38 moveto
> /alpha glyphshow
> 240 317.78 moveto
> /alpha glyphshow
>
>
> The problem with this solution is that it is a terrible hack.  Can someone
> please help me find a better solution to this problem?
>
>
> Thanks,
>
> Scott
>
> -- 
> View this message in context: http://www.nabble.com/Problems-with-PostScript-Encoding-tp19070021p19070021.html
> Sent from the R help mailing list archive at Nabble.com.
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595