Set coordinate values

wk_set_z(handleable, z, ...)

wk_set_m(handleable, m, ...)

wk_drop_z(handleable, ...)

wk_drop_m(handleable, ...)

wk_trans_set(value, use_z = NA, use_m = NA)

Arguments

handleable: A geometry vector (e.g., wkb(), wkt(), xy(), rct(), or sf::st_sfc()) for which wk_handle() is defined.
z, m: A vector of Z or M values applied feature-wise and recycled along handleable. Use NA to keep the existing value of a given feature.
...: Passed to the wk_handle() method.
value: An xy(), xyz(), xym(), or xyzm() of coordinates used to replace values in the input. Use NA to keep the existing value.
use_z, use_m: Used to declare the output type. Use TRUE to ensure the output has that dimension, FALSE to ensure it does not, and NA to leave the dimension unchanged.

Examples

wk_set_z(wkt("POINT (0 1)"), 2)
#> <wk_wkt[1]>
#> [1] POINT Z (0 1 2)
wk_set_m(wkt("POINT (0 1)"), 2)
#> <wk_wkt[1]>
#> [1] POINT M (0 1 2)
wk_drop_z(wkt("POINT ZM (0 1 2 3)"))
#> <wk_wkt[1]>
#> [1] POINT M (0 1 3)
wk_drop_m(wkt("POINT ZM (0 1 2 3)"))
#> <wk_wkt[1]>
#> [1] POINT Z (0 1 2)