[Rd] [FORGED] Re: Plotmath on Fedora 31 broken with with pango >= 1.44 - workarounds?

[Kenny Bell]

Hi Paul,

I tried downgrading to R 3.4.4 and I still see the problem. I also have a
conda environment that doesn't exhibit the problem so it's something
environmental.

Any tips for possible solutions/troubleshooting would be appreciated!

Cheers,
Kenny

On Tue, May 26, 2020 at 3:09 PM Paul Murrell <paul using stat.auckland.ac.nz>
wrote:

>
> I am not seeing that problem on my 18.04 ...
>
>  > sessionInfo()
> R version 4.0.0 Patched (2020-05-12 r78431)
> Platform: x86_64-pc-linux-gnu (64-bit)
> Running under: Ubuntu 18.04.4 LTS
>
> Matrix products: default
> BLAS:   /home/pmur002/R/R-4-0-branch/BUILD/lib/libRblas.so
> LAPACK: /home/pmur002/R/R-4-0-branch/BUILD/lib/libRlapack.so
>
> locale:
>   [1] LC_CTYPE=en_NZ.UTF-8       LC_NUMERIC=C
>   [3] LC_TIME=en_NZ.UTF-8        LC_COLLATE=en_NZ.UTF-8
>   [5] LC_MONETARY=en_NZ.UTF-8    LC_MESSAGES=en_NZ.UTF-8
>   [7] LC_PAPER=en_NZ.UTF-8       LC_NAME=C
>   [9] LC_ADDRESS=C               LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_NZ.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> loaded via a namespace (and not attached):
> [1] compiler_4.0.0
>
> Paul
>
> On 26/05/20 2:21 pm, Kenny Bell wrote:
> > Hi all,
> >
> > I have found after upgrading to R 4.0.0 (among other upgrades so this may
> > not be the cause) that the degree symbol doesn't work correctly on Ubuntu
> > 18.04. Googling brought me to this thread that appears related.
> >
> > I tried running:
> > cairo_pdf()
> > plot.new(); text(0.5,0.5, bquote(120*degree*N), cex=5)
> > dev.off()
> >
> > and the ubuntu plot has the degree symbol vertically in the center of the
> > line. The Windows one correctly shows as superscript.
> >
> > Anyone else see this behaviour?
> >
> > Cheers,
> > Kenny
> >
> > On Fri, Apr 10, 2020 at 3:36 AM Nicolas Mailhot via R-devel <
> > r-devel using r-project.org> wrote:
> >
> >> Le mercredi 08 avril 2020 à 02:55 -0700, Gabriel Becker a écrit :
> >>> Hi Paul,
> >>
> >> Hi Gabriel,
> >>
> >> Thanks a lot for the testing.
> >>
> >>> The various font family settings seem to work too, from what I can
> >>> tell. Both font families you suggested, however, Helvetica and Apple
> >>> Symbols (the s is important) have significantly incomplete coverage
> >>> with PUA on.
> >>
> >> That is to be expected, the AMS symbol dump in PUA space was a quick
> >> hack to make pre-unicode symbols available in an unicode world, pending
> >> their normalisation.
> >>
> >> That standardisation is long past (IIRC it occured by unicode 3.2
> >> released in March 2002), so no newly created/updated font family is
> >> going to place those symbols in PUA anymore.
> >>
> >> Now adding the AMS symbols to new fonts has been slow, due to the large
> >> amount of software hardcoding Symbol (and equivallent) and masking the
> >> actual glyph userbase to font makers. It will accelerate with more apps
> >> expecting plain unicode by default.
> >>
> >> Thanks for the testing!
> >>
> >> Regards,
> >>
> >> --
> >> Nicolas Mailhot
> >>
> >> ______________________________________________
> >> R-devel using r-project.org mailing list
> >> https://stat.ethz.ch/mailman/listinfo/r-devel
> >>
> >>
> >> ______________________________________________
> >> R-devel using r-project.org mailing list
> >> https://stat.ethz.ch/mailman/listinfo/r-devel
>
> --
> Dr Paul Murrell
> Department of Statistics
> The University of Auckland
> Private Bag 92019
> Auckland
> New Zealand
> 64 9 3737599 x85392
> paul using stat.auckland.ac.nz
> http://www.stat.auckland.ac.nz/~paul/
>

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