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

[Kenny Bell]

I was actually able to reproduce this on a relatively fresh install of
18.04 (a virtualbox). Paul, did you run apt update && apt upgrade before
trying to reproduce?

On Tue, May 26, 2020 at 4:36 PM Kenny Bell <kmbell56 using gmail.com> wrote:

> 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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