Re: [Rd] X11.options().

From: Martin Maechler <maechler_at_stat.math.ethz.ch>
Date: Mon, 08 Aug 2011 10:20:16 +0200

Hi Rolf,

please excuse a short "top-reply":

As I see you are using an operating system (instead of Win..), can you try in the shell

       echo 'X11.options()$type' | R --vanilla --slave

and does that really *not* report
[1] "cairo"

??

(and BTW: Your subject had tolower("LL") instead of "11" )

>>>>> Rolf Turner <r.turner_at_auckland.ac.nz> >>>>> on Mon, 8 Aug 2011 12:49:44 +1200 writes:

> This question seemed to me to be more appropriate for
> r-devel than for r-help. My apologies if this is not the
> case.

> Recently I installed ``cairo'' on my lap-top so that I
> could make use of the (newish) polypath() function, with
> on-screen graphics. (The polypath() function does not
> work with X11(type="Xlib").)

> The installation went smoothly, X11(type="cairo") works
> just fine, and polypath() works just fine.

> However the default "type" for X11() remains "Xlib" rather
> than "cairo".

> The help for X11.options() says (in respect of "type"):

> Default "cairo" where available and reliable,
> otherwise "Xlib".

> Now "cairo" is definitely available:

    >> capabilities()["cairo"]
> cairo TRUE

> and moreover it works (just fine!) when I do
> X11(type="cairo") explicitly.

> I know that I can set the default to be "cairo" in my
> .Rprofile, but I am curious as to why "cairo" does not
> become the default automatically.

> Is it the case that "cairo" is ``not reliable'' under my
> system? It ***seems*** to be reliable.

    >> sessionInfo()

> R version 2.13.1 Patched (2011-07-17 r56404) Platform:
> i686-pc-linux-gnu (32-bit)

> locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3]
> LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5]
> LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 [7]
> LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C
> LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8
> LC_IDENTIFICATION=C

> attached base packages: [1] datasets utils stats graphics
> grDevices methods base

> other attached packages: [1] misc_0.0-13 gtools_2.6.2
> spatstat_1.23-1 deldir_0.0-15 [5] mgcv_1.7-6
> fortunes_1.4-2 MASS_7.3-13

> loaded via a namespace (and not attached): [1] grid_2.13.1
> lattice_0.19-30 Matrix_0.999375-50 nlme_3.1-101

> cheers,

> Rolf Turner

> ______________________________________________
> R-devel@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel



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