Description Usage Arguments Details Value Author(s) See Also
Sets or retrieves projection attributes on classes extending SpatialData; set or retrieve option value for error or warning on exceedance of geographical coordinate range, set or retrieve option value for exceedance tolerance of geographical coordinate range. Note that only “+proj=longlat +ellps=WGS84” is accepted for geographical coordinates, which must be ordered (eastings, northings); the “+ellps=” definition must be given (or expanded internally from a given “+datum=” value) for recent versions of the PROJ.4 library, and should be set to an appropriate value.
1 2 3 4 5 6 7 8 9 | is.projected(obj)
proj4string(obj)
proj4string(obj) <- value
get_ll_warn()
get_ll_TOL()
get_ReplCRS_warn()
set_ll_warn(value)
set_ll_TOL(value)
set_ReplCRS_warn(value)
|
obj |
An object of class or extending Spatial-class |
value |
For |
proj4 strings are operative through CRAN package rgdal. For strings defined as “longlat”, the minimum longitude should be -180, the maximum longitude 360, the minimum latitude -90, and the maximum latitude 90. Note that the proj4string
replacement method does not project spatial data - for this use spTransform
methods in the rgdal package.
is.projected
returns a logical that may be NA
;
proj4string
returns a character vector of length 1.
Edzer Pebesma, edzer.pebesma@uni-muenster.de
CRS
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