Col2: Adds transparency to a colour

In greenbrown: Land Surface Phenology and Trend Analysis

Description

The function adds transparency to a vector of colours

Usage

Col2(col, alpha = 0.3, 
    ...)

Arguments

col	character string of the colour
alpha	transparence (0 = transparent, 1 = opaque)
...	further arguments (unused)

Details

The function adds transparency to a vector of colours

Value

returns a colour including transparency

Author(s)

Matthias Forkel <[e-mail]> [aut, cre]

Examples

cols <- Col2(c("red", "blue"), alpha=seq(0, 1, 0.1))
plot.new()
legend("top", cols, fill=cols, bg="yellow")

greenbrown documentation built on Dec. 18, 2020, 3:02 p.m.