Geography vectors are arrays of points, lines, polygons, and/or collections of these. Geography vectors assume coordinates are longitude and latitude on a perfect sphere.
as_s2_geography(x, ...)# S3 method for default
as_s2_geography(x, ...)
# S3 method for s2_geography
as_s2_geography(x, ...)
# S3 method for s2_latlng
as_s2_geography(x, ...)
# S3 method for s2_point
as_s2_geography(x, ...)
# S3 method for wk_wkb
as_s2_geography(x, ..., oriented = FALSE, check = TRUE)
# S3 method for WKB
as_s2_geography(x, ..., oriented = FALSE, check = TRUE)
# S3 method for blob
as_s2_geography(x, ..., oriented = FALSE, check = TRUE)
# S3 method for wk_wkt
as_s2_geography(x, ..., oriented = FALSE, check = TRUE)
# S3 method for character
as_s2_geography(x, ..., oriented = FALSE, check = TRUE)
# S3 method for logical
as_s2_geography(x, ...)
# S3 method for s2_geography
as_wkb(x, ..., endian = wk::wk_platform_endian())
# S3 method for s2_geography
as_wkt(x, ..., precision = 16, trim = TRUE)
An object that can be converted to an s2_geography vector
Unused
TRUE if polygon ring directions are known to be correct (i.e., exterior rings are defined counter clockwise and interior rings are defined clockwise).
Use check = FALSE to error on invalid geometries
The endian to use when writing well-known binary.
Defaults to the platform endian. See wk::as_wkb().
The number of significant digits to export when
writing well-known text. If trim = FALSE, the number of
digits after the decimal place.
Should trailing zeroes be included after the decimal place?
An object with class s2_geography
The coercion function as_s2_geography() is used to wrap the input
of most functions in the s2 package so that you can use other objects with
an unambiguious interpretation as a geography vector. Geography vectors
have a minimal vctrs implementation, so you can
use these objects in tibble::tibble() and other packages that use the vctrs
framework.
s2_geog_from_wkb(), s2_geog_from_text(), s2_geog_point(),
s2_make_line(), s2_make_polygon() for other ways to
create geography vectors, and s2_as_binary() and s2_as_text()
for other ways to export them.