Draw circles on a nativeRaster image

Draw circles on a nativeRaster image

nr_circle(nr, x, y, r, fill = "black", color = NA)

Arguments

nr

nativeRaster

x, y

coordinates of centre of circle. [vector]

r

radius [vector]

fill

interior fill color [vector]

color

outline color. Default: NA. [vector]

Value

Original nativeRaster modified in-place

Examples

N <- 20
nr <- nr_new(N, N, 'grey80')
nr_circle(nr, x = N/2, y = N/2, r = c(N/4, N/2), fill = c('red', 'black'))
plot(nr)