This question is not clear to me. What is it you hope to retrieve from the
device?
Note that the type of device in your example is system-dependent. The content in
a png() would be different than the content in a win.graph() device.
On October 15, 2023 8:04:00 AM PDT, Shu Fai Cheung <shufai.cheung at
gmail.com> wrote:>Hi All,
>
>I want to inspect the content of a plot generated by another function.
>
>For example:
>
>plot.new()
>polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
>
>A polygon will be drawn. If I do not know what has been done to generate
>the plot, is it possible to query the content in the active device?
>
>Regards,
>Shu Fai
>
> [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
--
Sent from my phone. Please excuse my brevity.