Spatial-class {sp} | R Documentation |
An abstract class from which useful spatial classes are derived
are never to be generated; only derived classes can be meaningful
bbox
:"matrix"
; 2-column matrix
holding the minimum in first and maximum in second column for the
x-coordinate (first row), y-coordinate (second row) and optionally,
for points and grids only, further coordinates. proj4string
:"CRS"
;
holding a valid proj4 string, which can be used for unprojecting
or reprojecting coordinates; it is initialised to NA. Other strings
are checked for validity in the spproj package.signature(obj = "Spatial")
: retrieves the bbox element signature(obj = "Spatial")
: retrieves the number
of spatial dimensions spanned signature(obj = "Spatial")
: logical, tells whether
the data is on a regular spatial grid this class is not useful in itself, but all spatial classes in this package derive from it
r-spatial team; Edzer J. Pebesma, e.pebesma@geo.uu.nl Roger Bivand, Barry Rowlinson, Virgilio G'{o}mez-Rubio
SpatialPoints-class
,
SpatialGrid-class
,
SpatialPointsDataFrame-class
,
SpatialGridDataFrame-class
,