Make doughnuts

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

- 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