[ESS] Graphics in emacs window: how to copy R screen devices in non-interactive sessions (remotes)
Vitalie Spinu
spinuvit at gmail.com
Tue Nov 19 01:50:43 CET 2013
Thanks for the idea. I tried it with png device and it doesn't produce
any intermediate plots.
png("main.png")
plot(1:3)
t <- recordPlot(); png('dev1.png'); replayPlot(t); dev.off()
abline(h = 2)
t <- recordPlot(); png('dev2.png'); replayPlot(t); dev.off()
dev.off()
First time I run it, it throws
Error in int_abline(a = a, b = b, h = h, v = v, untf = untf, ...) :
plot.new has not been called yet
This is with R3.0.1.
Vitalie
>>> Gergely Daróczi on Tue, 19 Nov 2013 01:11:03 +0100 wrote:
> Hi Vitalie,
> what about calling "recordPlot" and then "replayPlot" after opening e.g. a "png"
> device.
> Quick demo:
>> plot(1:3)
>> t <- recordPlot(); png('dev1.png'); replayPlot(t); dev.off()
> X11cairo
> 2
>> abline(h = 2)
>> t <- recordPlot(); png('dev2.png'); replayPlot(t); dev.off()
> X11cairo
> 2
> Best,
> Gergely
> On 19 November 2013 00:50, Vitalie Spinu <spinuvit at gmail.com> wrote:
> Hi Everybody,
> I would like to add "graphics-in-emacs-window" functionality to ESS in
> near future. The most straightforward way to do that is to save graphic
> images to a disc files.
> Unfortunately I couldn't figure how to save buffered R devices. With
> screen devices dev.print does the job, but as screen devices are not
> available on remotes, dev.print is out of option. I didn't have luck
> with dev.copy either.
> So I would really appreciate if someone can suggest a way to save an
> incomplete R plot into an image file. In other words: How to write a
> function "copyDev" such that the following code
> plot(1:3)
> copyDev("dev1.png")
> abline(h = 2)
> copyDev("dev2.png")
> would generate two plots. The current devise is "pdf" or "png" or some
> other non-screen device.
> Any other ideas of how to implement the R-graphics-in-emacs functionally
> are very much welcome.
> Thanks,
> Vitalie
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