ursa_proj {ursa} | R Documentation |
Functions manipulate with $proj4
item of the ursaGrid
object, which is embedded in the ursaRaster
object (obj$grid$proj4). Projection is specified in PROJ.4 notation.
ursa_proj(obj) ursa_proj(obj, keepGrid = FALSE) <- value
obj |
|
keepGrid |
Logical. Should sessional grid be changed after assignment. Default is |
value |
Character sting in PROJ.4 format. |
Extract function ursa_proj
returns character value of $grid$proj4
item of ursaRaster
object.
Replace function ursa_proj<-
returns ursaRaster
with modified $grid$proj4
item.
Nikita Platonov platonov@sevin.ru
session_grid(NULL) a <- ursa_dummy(nband=1) print(ursa_proj(a)) p4s <- "+init=epsg:3576" ursa_proj(a) <- p4s print(ursa_proj(a)) fname <- tempfile() write_envi(a,fname) a2 <- read_envi(fname,resetGrid=TRUE) print(ursa_proj(a2)) try(print(rgdal::CRSargs(sp::CRS(p4s)))) envi_remove(fname)