The geo_segment()
type is useful as an efficient representation of
line segments stored using column vectors.
geo_segment( x0 = double(), y0 = double(), x1 = double(), y1 = double(), srid = NA )
x0, y0, x1, y1 | Values for the start and end coordinates. |
---|---|
srid | A spatial reference identifier, coerced to
an integer by |