testAlpha | R Documentation |
Display how the alpha transparency for rgb()
varies.
testAlpha(alpha=seq(0,1,len=25), fg="blue", bg="yellow",
border="black", grid=FALSE, ...)
alpha |
|
fg |
|
bg |
|
border |
|
grid |
|
... |
|
Invisibly returns the compound RGB matrix for fg
, alpha
,
bg
, and border
.
Jon T. Schnute, Research Scientist Emeritus
Pacific Biological Station, Fisheries and Oceans Canada, Nanaimo BC
Maintainer: Rowan Haigh, Program Head – Offshore Rockfish
Pacific Biological Station (PBS), Fisheries & Oceans Canada (DFO), Nanaimo BC
locus opus: Offsite, Vancouver BC
Last modified Rd: 2023-10-18
In package PBSmodelling:
testCol
,
testLty
,
testLwd
In package PBStools:
testPch
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