Description Usage Arguments Value Author(s) Examples
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.
1 2 |
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
1 2 3 4 5 6 7 8 9 10 11 12 | 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)
|
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