R: retrieve (or set) spatial coordinates

coordinates-methods {sp} | R Documentation

## retrieve (or set) spatial coordinates

### Description

retrieve (or set) spatial coordinates from (for) spatial data

### Methods

obj = "list"

  list with (at least) two numeric components of equal length

obj = "data.frame"

  data.frame with at least two numeric components

obj = "matrix"

  numeric matrix with at least two columns

obj = "SpatialPoints"

  object of, or deriving from, SpatialPoints

obj = "SpatialPointsDataFrame"

  object of, or deriving from, SpatialPointsDataFrame

obj = "SpatialPolygons"

  object of, or deriving from, SpatialPolygons

obj = "SpatialPolygonsDataFrame"

  object of, or deriving from, SpatialPolygonsDataFrame

obj = "Line"

  object of class Line; returned value is matrix

obj = "Lines"

  object of class Lines; returned value is list of matrices

obj = "SpatialLines"

  object of, or deriving from, SpatialLines; returned value is list of lists of matrices

obj = "GridTopology"

  object of, or deriving from, GridTopology

obj = "GridTopology"

  object of, or deriving from, GridTopology

obj = "SpatialPixels"

  object of, or deriving from, SpatialPixels

obj = "SpatialPixelsDataFrame"

  object of, or deriving from, SpatialPixelsDataFrame

obj = "SpatialGrid"

  object of, or deriving from, SpatialGrid

obj = "SpatialGridDataFrame"

  object of, or deriving from, SpatialGridDataFrame

### Methods for "coordinates<-"

object = "data.frame", value="ANY"

  promote data.frame to object of class SpatialPointsDataFrame-class, by specifying coordinates; see coordinates

[Package sp version 1.3-2 Index]