[R-pkg-devel] plot graph (png, svg, eps, pdf, vdx, ok tikz) to device

Hi

I asked the question at stack exchange yesterday (
https://stackoverflow.com/q/50325139/632423 ) and did not get a response
so far, so I repost it here:

####

I have the following situation: I use an external command (plantuml -
http://plantuml.com/ ) to create a graph. This is done via R by using a
(my) package ( https://github.com/rkrug/plantuml ). The resulting graph
can be a file (png, svg, eps, pdf, vdx or LaTeX/Tikz with or without
preamble) or I can send the image to stdout, using the same formats.

Now I want to plot this graph as R-like as possible, i.e. in a graphic
device. At the moment I am using a temporary file, which I display using
readPNG() and grid::grid.raster() which works, but I am not that happy with
this approach as

        ? I have to use a temporary file which I would like to avoid, and
        ? it is a raster format and I would prefer a vector format.

My question is therefore:

        ? Is there a way to display any of the vector formats in a
graphics device in R?
        ? Can I pipe stdout (the result from the call to plantuml)
directly into the device (or through any function) without having to create
an intermediate file?

####

Thanks for any [pointers,

Rainer


--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

University of Z?rich

Cell:       +41 (0)78 630 66 57
email:      Rainer at krugs.de
Skype:      RMkrug

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