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Helper for a 'girafe' css string

Source: R/utils_css.R
girafe_css_bicolor.Rd

It allows the creation of a css set of individual styles for animation of 'girafe' elements. The used model is based on a simple pattern that works most of the time for girafe hover effects and selection effects.

It sets properties based on a primary and a secondary color.

Usage

girafe_css_bicolor(primary = "orange", secondary = "gray")

Arguments

primary, secondary

colors used to define animations of fill and stroke properties with text, lines, areas, points and images in 'girafe' outputs.

See also

girafe_css(), girafe()

Examples

library(ggplot2)
library(ggiraph)

dat <- mtcars
dat$id <- "id"
dat$label <- "a line"
dat <- dat[order(dat$wt), ]

p <- ggplot(
  data = dat,
  mapping = aes(
    x = wt, y = mpg, data_id = id, tooltip = label)) +
  geom_line_interactive(color = "white", size  = .75,
                        hover_nearest = TRUE) +
  theme_dark() +
  theme(plot.background = element_rect(fill="black"),
        panel.background = element_rect(fill="black"),
        text = element_text(colour = "white"),
        axis.text = element_text(colour = "white")
        )

x <- girafe(
  ggobj = p,
  options = list(
    opts_hover(
      css = girafe_css_bicolor(
        primary = "yellow", secondary = "black"))
))
if (interactive()) print(x)