Make a colour transparent

A functionm that will make the provided colour transparent.

Usage

atl_t_col(color, percent = 50, name = NULL)

Arguments

color

The color to make transparant.

percent

The percentage of transparancy to apply .

name

The name argument as passed on to rgb.

Value

The transparant color will be returned.

Author

Allert Bijleveld & Johannes Krietsch

Examples

# Example with 50% transparency
color_with_alpha <- atl_t_col("blue", percent = 50)
print(color_with_alpha)
#> [1] "#0000FF7F"

plot(1, 1,
  col = color_with_alpha, pch = 16, cex = 20,
  xlab = "X", ylab = "Y", main = "Point with Transparent Color"
)


# Example with 30% transparency
color_with_alpha <- atl_t_col("red", percent = 90)
print(color_with_alpha)
#> [1] "#FF000019"

plot(1, 1,
  col = color_with_alpha, pch = 16, cex = 20,
  xlab = "X", ylab = "Y", main = "Point with Transparent Color"
)