[R] Fedora 10 KDE plasma font rendering issue

[Martyn Plummer]

On Sun, 2009-04-12 at 13:19 +0100, Paul Bivand wrote:
> I checked with my KDE 4.2 (Mandriva 2009 system, kde.org binaries)
> with no font rendering issues in running demo(graphics).
> 
> It is quite possible that pango was not installed with Fedora (as it
> is unnecessary for KDE 4.2 systems). Installing the relevant rpm may
> fix things.

The pango RPM should have been installed with R, as R requires the pango
and pangocairo libraries that it provides:

[martyn at seurat ~]$ rpm -q --requires R-core | grep pango -
libpango-1.0.so.0()(64bit)  
libpangocairo-1.0.so.0()(64bit)  

> The packaging of the Fedora 2.8.1 rpm may need to take this into
> account - if compiling, you'd have discovered at configure stage.
> 
> Paul Bivand
> 
> Paul Bivand
> 
> 2009/4/1 Martyn Plummer <plummer at iarc.fr>:
> > On Tue, 2009-03-31 at 18:36 -0700, dfermin wrote:
> >> Nope. I checked this. Both those fonts are installed.
> >
> > Well it is some kind of font rendering problem. The default device is
> > the Cairo X11 device, which uses the Pango layout engine for font
> > rendering.
> >
> > If you set the environment variable FC_DEBUG to 1 before launching your
> > R session, you will get some debugging information. It is very verbose,
> > but we only need to see this bit:
> >
> > First font Pattern has 15 elts (size 15)
> >        family: "Nimbus Sans L"(w)
> >        style: "Regular"(w)
> >        slant: 0(i)(w)
> >        weight: 80(i)(w)
> >        width: 100(i)(w)
> >        foundry: "urw"(w)
> >        file: "/usr/share/fonts/default/Type1/n019003l.pfb"(w)
> >        index: 0(i)(w)
> >        outline: FcTrue(w)
> >        scalable: FcTrue(w)
> >
> >
> >
> >>
> >> Martyn Plummer-2 wrote:
> >> >
> >> > Quoting dfermin <dfermin at umich.edu>:
> >> >>
> >> >> Hello.
> >> >>
> >> >> I've got a new workstation running Fedora 10 linux and I use the KDE 4.2
> >> >> desktop which uses some kind of new desktop environment called 'plasma'.
> >> >>
> >> >> If I start up R and generate a plot (for example: hist(rnorm(10000,
> >> >> mean=0,
> >> >> sd=1), breaks=100) ). The plot appears but all text (the x/y axes, title,
> >> >> etc..) is replaced by a square box. No font is rendered at all.
> >> >>
> >> >> Has anyone else got this problem? If so do you have a work around or a
> >> >> solution?
> >> >>
> >> >> I'm using R version 2.8.1 installed from the Fedora 10 repositories if
> >> >> that
> >> >> helps.
> >> >>
> >> >> Thanks in advance.
> >> >
> >> > It sounds like you are missing some fonts. Check that the "urw-fonts" and
> >> > "liberation-fonts" RPMs are installed.
> >
> >
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> >
> 
> ______________________________________________
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> and provide commented, minimal, self-contained, reproducible code.

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