isLonLat {raster} | R Documentation |
Test whether a Raster* or other object has a longitude/latitude coordinate reference system (CRS) by inspecting the PROJ.4 coordinate reference system description. couldBeLonLat
also returns TRUE
if the CRS is NA
but the x coordinates are within -365 and 365 and the y coordinates are within -90.1 and 90.1.
isLonLat(x) couldBeLonLat(x, warnings=TRUE)
x |
Raster* object |
warnings |
logical. If |
Logical
r <- raster() isLonLat(r) projection(r) <- "+proj=lcc +lat_1=48 +lat_2=33 +lon_0=-100 +ellps=WGS84" isLonLat(r)