ursaCRS {ursa} | R Documentation |
Coordinate Reference System (CRS) for raster images.
Description
Class ursaCRS
is a part of class ursaGrid
. It defines map projection.
Usage
## S3 method for class 'ursaCRS'
print(x, ...)
## S3 method for class 'ursaCRS'
str(object, ...)
Arguments
x |
|
object |
|
... |
Further arguments passed to generic functions |
Value
Functions print information about CRS and return invisible NULL
value.
Author(s)
Nikita Platonov platonov@sev-in.ru
Examples
session_grid(NULL)
a <- ursa_dummy()
crs <- ursa_crs(a)
print(c('Is proj4string used?'=p4 <- isTRUE(getOption("ursaProj4Legacy"))))
print(crs)
str(crs)
op <- options(ursaProj4Legacy=!p4)
print(c('Is proj4string used?'=p4 <- isTRUE(getOption("ursaProj4Legacy"))))
session_grid(NULL)
a <- ursa_dummy()
crs <- ursa_crs(a)
print(crs)
str(crs)
options(op)
[Package ursa version 3.11.4 Index]