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.

Value

An sf data frame

Examples

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