Add quadrant lines to a radial plot

Draws two dashed lines through the centre of the unit circle – one horizontal (0degrees/180degrees) and one vertical (90degrees/270degrees) – dividing the arena into four quadrants. The lines extend to the arena boundary (unit circle).

Usage

add_quadrant_lines(colour = "grey60", linewidth = 0.5, linetype = "dashed")

Arguments

colour

Line colour. Default `"grey60"`.

linewidth

Line width. Default `0.5`.

linetype

Line type. Default `"dashed"`.

Value

A `geom_segment()` layer.

Examples

library(ggplot2)
ggplot() + coord_fixed() + add_quadrant_lines()