dot-add.alpha: Add opacity (alpha) to a vector of colours

Description Usage Arguments Value

Description

Add opacity (alpha) to a vector of colours

Usage

1
.add.alpha(old.colours, alpha)

Arguments

old.colours

colour vector

alpha

opacity ratio (1 - perfectly opaque, 0- perfectly transparent)

Value

the new colour vector with alpha


IulianD/dsSwissKnifeClient documentation built on June 23, 2020, 4:38 p.m.