is.projected {sp} | R Documentation |
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” is accepted for geographical coordinates, which must be ordered (eastings, northings).
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; proj4string
returns a character vector of length 1; spatial.dimension
returns the number of spatial dimensions (2 or 3).
Edzer Pebesma, edzer.pebesma@uni-muenster.de