Spatial identity

Spatial identity

st_identity(x, y, radius = 0)

Arguments

x

object of class sf, sfc or sfg

y

object of class sf, sfc or sfg

radius

(optional) numeric or object of class units; radius for the morphological opening and closing operations that are applied if radius != 0. In case x has geodetic coordinates (lon/lat) and sf_use_s2() is TRUE, a numeric radius is taken as distance in meters and a units object in radius is converted to meters. In case x has geodetic coordinates (lon/lat) and sf_use_s2() is FALSE, a numeric radius is taken as degrees, and a units object in radius is converted to arc_degree (and warnings are issued). In case x does not have geodetic coordinates (projected) then numeric radius is assumed to have the units of the coordinates, and a units radius is converted to those if st_crs(x) is not NA.

Value

object of class sf, sfc or sfg, a "left join" style union operation that includes the full footprint of x and those portions of y that overlap x