On 6/6/24 18:41, Duncan Murdoch wrote:
On 2024-06-06 4:37 a.m., Yosu Yurramendi wrote:
What is the HEX code for "transparent" color?
I've tried "00000000" "FFFFFF00" "FFFFFFFF", but they don't work.
If the other answers don't solve your problem, you should give us some
context. Not all graphics functions in R can handle transparency, so
please show us some reproducible code for what you are trying.
Duncan Murdoch
I usually use the alpha argument of the rgb() function for transparency.
Does this code snippet help to give you an idea how it works.
plot(1, 1, type="n", xlim=c(0,10), ylim=c(0,10))
rect(xleft=0, xright=7.5, ybottom=0, ytop=7.5,
col=rgb(0, 0, 1, alpha=0.5))
rect(xleft=2.5, xright=10, ybottom=2.5, ytop=10,
col=rgb(1, 0, 0, alpha=0.5))
Please check
?rgb
Especially the "Details" section should be helpful where you will find a
list of devices which are supported or not supported.
I hope this helps a bit.
All the best,
Roland
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