[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")
> plot(1:10, 1:10)
> img <- readPNG(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
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