geometry-methods {sp} | R Documentation |
Methods for retrieving the geometry from a composite (geometry + attributes) object
Description
geometry retrieves the SpatialXxx object from a SpatialXxxDataFrame object, with Xxx Lines, Points, Polygons, Grid, or Pixels. geometry<- converts a data.frame into a Spatial object.
Usage
geometry(obj)
geometry(obj) <- value
Arguments
obj |
in case of assignment, a data.frame, else an object of class Spatial |
value |
object of class Spatial |
Methods
- obj = "Spatial"
- obj = "SpatialPointsDataFrame"
- obj = "SpatialMultiPointsDataFrame"
- obj = "SpatialPolygonsDataFrame"
- obj = "SpatialPixelsDataFrame"
- obj = "SpatialGridDataFrame"
- obj = "SpatialLinesDataFrame"
Author(s)
Edzer Pebesma, edzer.pebesma@uni-muenster.de
Examples
data(meuse)
m = meuse
coordinates(m) = meuse[, c("x", "y")]
pts = geometry(m)
class(pts)
geometry(meuse) = pts
class(meuse)
identical(m, meuse) # TRUE
[Package sp version 2.1-4 Index]