These functions provide ways to extract individual coordinate values.
Whereas wk_vertices() returns a vector of coordinates as in the same
format as the input, wk_coords() returns a data frame with coordinates
as columns.
Usage
wk_vertices(handleable, ...)
wk_coords(handleable, ...)
wk_vertex_filter(handler, add_details = FALSE)
Value
wk_vertices() extracts vertices and returns the in the same format as
the handler
wk_coords() returns a data frame with columns columns feature_id
(the index of the feature from whence it came), part_id (an arbitrary
integer identifying the point, line, or polygon from whence it came),
ring_id (an arbitrary integer identifying individual rings within
polygons), and one column per coordinate (x, y, and/or z and/or m).
Arguments
handleable
A geometry vector (e.g., wkb(), wkt(), xy(),
rct(), or sf::st_sfc()) for which wk_handle() is defined.
...
Passed to the wk_handle() method.
handler
A wk_handler object.
add_details
Use TRUE to add a "wk_details" attribute, which
contains columns feature_id, part_id, and ring_id.