Angle axes: guide_axis_theta

Mix.install([
  {:giggly, path: Path.join(__DIR__, "..")},
  {:kino, "~> 0.19"}
  ])

About this notebook

This notebook follows the examples on ggplot2's reference page for guide_axis_theta(), in the order the page gives them. Each example shows ggplot2's code first and then Giggly's. An example Giggly cannot draw yet keeps its ggplot2 code and names what it is waiting for, so the page is also a list of what remains.

guide_axis_theta() is the guide coord_radial() draws its theta scale with: the position that runs as an angle around the circle. Like guide_axis(), it can turn its labels, draw minor ticks and cap its axis line. Giggly has Giggly.Plot.coord_radial/1, ggplot2's coord_radial() without options, but no axis guides yet, guide_axis_theta() among them.

The labels' angle

# A plot using coord_radial
p <- ggplot(mtcars, aes(disp, mpg)) +
  geom_point() +
  coord_radial()

# The `angle` argument can be used to set relative angles
p + guides(theta = guide_axis_theta(angle = 0))

Not in Giggly yet: guide_axis_theta() with its angle option.