addAlpha {makeFlow} | R Documentation |
addAlpha()
Description
Adds a specified opacity (between 0 and 1) to any color(s) listed.
Usage
addAlpha(col, alpha = 1)
Arguments
col |
A vector of one or many colors. |
alpha |
A value between 0 and 1. 0 indicates complete transparency. 1 indicates complete opacity. |
Value
Returns the Hexadecimal representation of the modified color(s).
Examples
## The function is currently defined as
function (col, alpha = 1)
{
if (missing(col))
stop("Please provide a vector of colors.")
apply(sapply(col, col2rgb)/255, 2, function(x) {
rgb(x[1], x[2], x[3], alpha = alpha)
})
}
[Package makeFlow version 1.0.2 Index]