gggradient

The goal of gggradient is to provide a flexible ggplot2 interface with grid::linearGradient() using familiar fill scale syntax.

Installation

You can install the development version of gggradient from GitHub like so:

# install.packages("pak")
pak::pak("hrryt/gggradient")

Examples

Easily create a gradient fill along a geometry:

library(ggplot2)
library(gggradient)

ggplot(mpg, aes(class, fill = 1)) +
  geom_bar(colour = "black") +
  scale_fill_y_viridis_c()

Discretise gradients with binned scales:

ggplot(mpg, aes(hwy, fill = 1)) +
  geom_density() +
  scale_fill_x_binned()

Flexibly specify gradients with the syntax of regular fill scales:

ggplot(mpg, aes(hwy, class, fill = 1)) +
    geom_boxplot() +
    scale_fill_x_distiller(
        name = "hwy",
        limits = c(25, 30),
        oob = scales::oob_squish,
        palette = "RdBu",
        direction = 1,
        group = FALSE
    )