I was recently testing R and RStudio on a high dpi 4K monitor under Windows and
noticed that the plot window cannot be scaled or zoomed without affecting the
relative sizing of all plot elements (line widths, font sizes, legend spacing
etc). RStudio seems to try to overcome this by enabling dpi scaling for the
plot window on high dpi screens, but this results in really fuzzy text and
graphics (e.g. causing colour fringing when using Cleartype).
This made me wonder if the assumed dpi of the screen could perhaps be set using
some global option, so that all graphics could be made to scale their contents
in a correct way, without affecting the size relative to the size of the plot
window (I think now it is always assumed to be 72 dpi)? I recently asked a
related question re how to scale R graphics proportionally to the size of the
plot window on Stackoverflow,
http://stackoverflow.com/questions/31381066/r-function-to-make-plot-symbols-line-widths-and-text-in-ggplot2-lattice-and-b/32412384#32412384
but nobody seemed to be able to come up with a good answer/solution. This made
me wonder if there could perhaps be some low-level solution to this?
best regards,
Tom
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