Interactive maps with mapview (1)
st_sample()
samples points on spatial features, and returns an sfc
class
However mapview needs an sf
object.
To upgrade sfc
to sf
we use st_as_sf()
.
## Warning in st_poly_sample(x, size = size, ..., type = type, by_polygon =
## by_polygon, : coordinate ranges not computed along great circles; install
## package lwgeom to get rid of this warning