retrieve coordinates in matrix form

st_coordinates(x, ...)

## Arguments

x

object of class sf, sfc or sfg

...

ignored

## Value

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 LINESTRINGL1 refers to the feature, for MULTIPOLYGONL1 refers to the main ring or holes, L2 to the ring id in the MULTIPOLYGON, and L3 to the simple feature.