st_zm | R Documentation |
Drop Z and/or M dimensions from feature geometries, resetting classes appropriately
st_zm(x, ..., drop = TRUE, what = "ZM")
x |
object of class |
... |
ignored |
drop |
logical; drop, or ( |
what |
character which dimensions to drop or add |
Only combinations drop=TRUE
, what = "ZM"
, and drop=FALSE
, what="Z"
are supported so far.
In the latter case, x
should have XY
geometry, and zero values are added for the Z
dimension.
st_zm(st_linestring(matrix(1:32,8)))
x = st_sfc(st_linestring(matrix(1:32,8)), st_linestring(matrix(1:8,2)))
st_zm(x)
a = st_sf(a = 1:2, geom=x)
st_zm(a)
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