R help - Jul 2010 - Mac OS X R.app has trouble rendering certain fonts.

I noticed this running a few graphics demos the other day.

In particular the plotmath and the persp graphics demos, certain fonts
don't seem to render on the demos.

The plotmath demo displays certain math equations on a quartz window
that don't render properly, and the persp demo displays a 3D model of
a mountain with labels on the graph rendered in a certain font. (None
of the data labels render at all.)

This problem appeared recently, (like last week), and has not happened
before. I'm fairly new to using the R gui and R in general, so I don't
really know where to check if I have the proper true type fonts
available on my computer or if it is a problem within R itself. This
doesn't appear to be a problem with the functioning of R itself, just
an inability for it to render certain fonts on graphical displays. I
just want to fix it now before I use it in a major project that
requires the rendering of fonts onto the screen for presentations
etc...

On Jun 30, 2010, at 11:10 PM, Carlo Tambuatco wrote:
> I noticed this running a few graphics demos the other day.
>
> In particular the plotmath and the persp graphics demos, certain fonts
> don't seem to render on the demos.
Three points:
1) The correct venue for questions that are likely due to features  
relating to the interface with the Mac OS (as this question is likely  
to be) should be sent to the R-SIG-Mac list:

http://www.r-project.org/mail.html

2) Check that your chosen fonts have not been corrupted. There have  
been a couple of reports that font listing are getting doubled. I had  
a problem with this involving my installation of the Symbol font that  
had symptoms that sounds similar to yours. You can investigate this  
with the utility app: Font Book.app

3) Your questions should be more specific. It is rather difficult when  
all you say is that "certain fonts" don't seem to render. Why not
say
what code is not being executed as expected?

-- 
David.
>
> The plotmath demo displays certain math equations on a quartz window
> that don't render properly, and the persp demo displays a 3D model of
> a mountain with labels on the graph rendered in a certain font. (None
> of the data labels render at all.)
>
> This problem appeared recently, (like last week), and has not happened
> before. I'm fairly new to using the R gui and R in general, so I
don't
> really know where to check if I have the proper true type fonts
> available on my computer or if it is a problem within R itself. This
> doesn't appear to be a problem with the functioning of R itself, just
> an inability for it to render certain fonts on graphical displays. I
> just want to fix it now before I use it in a major project that
> requires the rendering of fonts onto the screen for presentations
> etc...
>
> ______________________________________________
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> 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.
David Winsemius, MD
West Hartford, CT