Add alt text to a plot — a11y_alt

For plotly objects, sets the figure-level aria-label and a hidden description div. For ggplot, attaches the alt text as an attribute that Quarto renders as <img alt="...">.

Usage

a11y_alt_text(p, text)

Arguments

p: A plotly or ggplot object.
text: Character. Concise description for screen readers.

Value

The object with alt text attached.

Examples

if (requireNamespace("ggplot2", quietly = TRUE)) {
  library(ggplot2)
  p <- ggplot(mtcars, aes(mpg, wt)) + geom_point()
  a11y_alt_text(p, "Scatter of car weight against fuel economy.")
}