Return the value of a parameter (or the name) present in the WKT of the given proj4string.
projpar(proj4string, par, abort = FALSE) projname(proj4string, abort = FALSE)
proj4string | The proj4string to be named (a character or a CRS object). |
---|---|
par | Character corresponding to the parameter name. |
abort | logical: if TRUE, the function aborts in case an invalid proj4string is passed; if FALSE (default), the function returns NA, and a warning is shown. |
A character with the content of the parameter (NULL if the
parameter is not recognised) or the name of the projection, and an
attribute proj4string
with the input projection checked using
sf::st_crs()
.
Python is needed.
# NOT RUN { projpar("+init=epsg:4326", "Unit") # }# NOT RUN { projname("+init=epsg:4326") # }