Drop or add Z and/or M dimensions from feature geometries
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 (FALSE) add? |
what |
character which dimensions to drop or add |
Only combinations drop=TRUE
, what = "ZM"
, and drop=FALSE
, what="Z"
are supported so far. In case add=TRUE
, x
should have XY
geometry, and zero values are added for Z
.
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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