Spatial-class {sp}R Documentation

Class "Spatial" ~~~

Description

An abstract class from which useful spatial classes are derived

Objects from the Class

are never to be generated; only derived classes can be meaningful

Slots

bbox:
Object of class "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:
Object of class "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.

Methods

bbox
signature(obj = "Spatial"): retrieves the bbox element
dimensions
signature(obj = "Spatial"): retrieves the number of spatial dimensions spanned
gridded
signature(obj = "Spatial"): logical, tells whether the data is on a regular spatial grid

Warning

this class is not useful in itself, but all spatial classes in this package derive from it

Note

Author(s)

r-spatial team; Edzer J. Pebesma, e.pebesma@geo.uu.nl Roger Bivand, Barry Rowlinson, Virgilio G'{o}mez-Rubio

References

See Also

SpatialPoints-class, SpatialGrid-class, SpatialPointsDataFrame-class, SpatialGridDataFrame-class,

Examples






[Package sp version 0.7-12 Index]