Make doughnuts — zb_doughnut • zonebuilder

Make doughnuts

zb_doughnut(
  x = NULL,
  area = NULL,
  n_circles = NA,
  distance = 1,
  distance_growth = 1
)

Arguments

x: Centre point. Should be an sf or sfc object containing one point, or a name of a city (which is looked up with OSM geocoding).
area: (optional) Area. Should be an sf or sfc object containing one (multi) polygon
n_circles: Number of rings including the central circle. By default 5, unless area is specified (then it is set automatically to fill the area).
distance: Distance The distances between the circles. For the center circle, it is the distance between the center and the circle. If only one number is specified, distance_growth determines the increment at which the distances grow for the outer circles.
distance_growth: The rate at which the distances between the circles grow. Only applicable when distance is one number and n_circles > 1. See also distance.

An `sf` data frame

zb_plot(zb_doughnut(london_c(), london_a()))