raster (version 2.1-66)

projection: Get or set a coordinate reference system (projection)

Description

Get or set the coordinate reference system (CRS) of a Raster* object.

Usage

## S3 method for class 'ANY':
crs(x, asText=TRUE, ...)
crs(x) <- value
projection(x, asText=TRUE)
projection(x) <- value

Arguments

x

Raster* or Spatial object

asText

logical. If TRUE, the projection is returned as text. Otherwise a CRS object is returned

...

additional arguments (not implemented)

value

CRS object or a character string describing a projection and datum in the PROJ.4 format

Value

• Raster* or Spatial* object, or CRS, or character

Details

projections are done by with the PROJ.4 library exposed by rgdal

See Also

projectRaster, CRS-class, spTransform-methods, projInfo

Examples

r <- raster()
crs(r)
crs(r) <- "+proj=lcc +lat_1=48 +lat_2=33 +lon_0=-100 +ellps=WGS84"
crs(r)