Keep brain shapes undistorted — coord

Fixes the aspect ratio so brains aren't stretched by the shape of the plotting window. geom_brain() adds coord_brain() for you, so you rarely need to call it yourself – reach for it only to adjust the ratio or clip behaviour. You can safely add your own coord or stack several geom_brain() layers; it steps aside cleanly.

Usage

coord_brain(ratio = 1, clip = "off", ...)

Arguments

ratio: Aspect ratio, expressed as y / x. Defaults to 1, which keeps brain polygons undistorted.
clip: Should drawing be clipped to the panel extent ("on") or allowed to overflow ("off")? Defaults to "off" so region outlines at the panel edge are not cut.
...: Additional arguments passed to ggplot2::coord_fixed().

Value

A ggplot2 coordinate system that registers as a default.

Examples

library(ggplot2)
if (FALSE) { # \dontrun{
poly <- ggseg.formats::as_polygon_atlas(dk())
# Equivalent to the default; shown explicitly:
ggplot() +
  geom_brain(atlas = poly) +
  coord_brain()
} # }