[R] Plotting directly to memory?

Jan van der Laan rhe|p @end|ng |rom eoo@@dd@@n|
Sun May 28 16:16:30 CEST 2023

Perhaps the ragg package? That has an `agg_capture` device "that lets 
you access the device buffer directly from your R session." 


On 28-05-2023 13:46, Duncan Murdoch wrote:
> Is there a way to open a graphics device that plots entirely to an array 
> or raster in memory?  I'd prefer it to use base graphics, but grid would 
> be fine if it makes a difference.
> For an explicit example, I'd like to do the equivalent of this:
>    filename <- tempfile(fileext = ".png")
>    png(filename)
>    plot(1:10, 1:10)
>    dev.off()
>    library(png)
>    img <- readPNG(filename)
>    unlink(filename)
> which puts the desired plot into the array `img`, but I'd like to do it 
> without needing the `png` package or the temporary file.
> A possibly slightly simpler request would be to do this only for 
> plotting text, i.e. I'd like to rasterize some text into an array.
> Duncan Murdoch
> ______________________________________________
> R-help using 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.

More information about the R-help mailing list