[R-sig-Debian] problem with `viridis` on Ubuntu 20.04

[Dirk Eddelbuettel]

On 30 April 2020 at 03:05, Samuele Carcagno wrote:
| Il 30/04/20 01:39, Dirk Eddelbuettel ha scritto:
| > Keep. It. Simple. And. Concise.
| > 
| > And reproducible.
| 
| I've attached a script that triggers the bug on my system. It's just two 
| lines, one to load `viridisLite`, and one to call the `viridis` 
| function. I've also attached the output of `sessionInfo`.
| 
| To sum up all the additional info in my previous e-mail: the bug occurs 
| on Ubuntu 20.04 with R 4.0.0, but does not occur on Debian, Windows, or 
| Mac using the same version of R (R 4.0.0), and the same version of 
| viridisLite.

Can you decompose it to see if the data generation is the problem (likely R)
or the drawing (maybe a change in graphics ?)

What does capabilities() say? Anything missing?  On 19.10 I have

R> capabilities()
       jpeg         png        tiff       tcltk         X11 
       TRUE        TRUE        TRUE        TRUE        TRUE 
       aqua    http/ftp     sockets      libxml        fifo 
      FALSE        TRUE        TRUE        TRUE        TRUE 
     cledit       iconv         NLS     profmem       cairo 
      FALSE        TRUE        TRUE        TRUE        TRUE 
        ICU long.double     libcurl 
       TRUE        TRUE        TRUE 
R> 

Dirk

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