retrieve coordinates in matrix form
st_coordinates(x, ...)
matrix with coordinates (X, Y, possibly Z and/or M) in rows, possibly followed by integer indicators L1
,...,L3
that point out to which structure the coordinate belongs; for POINT
this is absent (each coordinate is a feature), for LINESTRING
L1
refers to the feature, for MULTIPOLYGON
L1
refers to the main ring or holes, L2
to the ring id in the MULTIPOLYGON
, and L3
to the simple feature.
object of class sf, sfc or sfg
ignored