I think you can do this in hexadecimal. To see this, compare the HEX output
from rgb(1,0,0) and rgb(1,0,0,0.5):
#FF
#FF80
They differ only by the addition of the alpha digits hex 80 which are
(almost) half way between 00 and FF. Making a non-transparent scale
transparent is thus just a
Hello,
I can't seem to add transparency to any color ramp I create using
colorRampPalette(). Can someone tell me if it is possible to create transparent
colour ramps?
I am attempting to map shaded relief under elevation data. I know I can use the
terrain.colors() with the alpha option, but I
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