The handler is the basic building block of the wk package. In
particular, the wk_handle() generic allows operations written
as handlers to "just work" with many different input types. The
wk package provides the wk_void() handler, the wk_format()
handler, the wk_debug() handler, the wk_problems() handler,
and wk_writer()s for wkb(), wkt(), xy(), and sf::st_sfc())
vectors.
# S3 method for sfg
wk_handle(handleable, handler, ...)# S3 method for sf
wk_handle(handleable, handler, ...)
# S3 method for bbox
wk_handle(handleable, handler, ...)
# S3 method for wk_crc
wk_handle(
handleable,
handler,
...,
n_segments = getOption("wk.crc_n_segments", NULL),
resolution = getOption("wk.crc_resolution", NULL)
)
# S3 method for wk_rct
wk_handle(handleable, handler, ...)
# S3 method for sfc
wk_handle(handleable, handler, ...)
# S3 method for wk_wkb
wk_handle(handleable, handler, ...)
# S3 method for wk_wkt
wk_handle(handleable, handler, ...)
# S3 method for wk_xy
wk_handle(handleable, handler, ...)
wk_handle(handleable, handler, ...)
new_wk_handler(handler_ptr, subclass = character())
is_wk_handler(handler)
as_wk_handler(handler, ...)
A geometry vector (e.g., wkb(), wkt(), xy(),
rct(), or sf::st_sfc()) for which wk_handle() is defined.
A wk_handler object.
Passed to the wk_handle() method.
The number of segments to use when approximating
a circle. The default uses getOption("wk.crc_n_segments") so that
this value can be set for implicit conversions (e.g., as_wkb()).
Alternatively, set the minimum distance between points on the circle
(used to estimate n_segments). The default is obtained
using getOption("wk.crc_resolution").
An external pointer to a newly created WK handler
The handler subclass
A WK handler.