crs_input {crsmeta} | R Documentation |
Obtain the 'input' string from an object, if it has one. Supported inputs include sf (>= 0.8-1 - probably).
crs_input(x, ...)
x |
object with 'input' value |
... |
ignored |
character (or NA)
Note that the 'input' value could be almost anything, there is a
huge variety of inputs that can work such as 4326
, projstrings,
WKT2 strings, EPSG declarations 'EPSG:4326'
, or common strings like
'WGS84'
or 'NAD27'
.
Strings like '+init=epsg:4326'
have been deprecated but still
can work, so beware.
crs_wkt2()
crs_proj()
crs_epsg()
crs_input(sfx) ## doesn't have one
crs_input(sfx_new) ## a proj4string