SpatialPoints-class {sp} | R Documentation |

## Class "SpatialPoints" ~~~

### Description

Class for (irregularly spaced) points

### Objects from the Class

Objects can be created by calls of the form `SpatialPoints(x)`

.

### Slots

`coords`

:- Object of class
`"matrix"`

, containing the
coordinates (each row is a point)
`bbox`

:- Object of class
`"matrix"`

, with bounding box
`proj4string`

:- Object of class
`"CRS"`

, projection string

### Extends

Class `"Spatial"`

, directly.

### Methods

- [
`signature(x = "SpatialPoints")`

: subsets the points; only
rows can be subsetted
- coerce
`signature(from = "SpatialPoints", to = "data.frame")`

:
retrieves the data part
- coerce
`signature(from = "data.frame", to = "SpatialPoints")`

: sets
coordinates, which may be in a data frame
- coerce
`signature(from = "matrix", to = "SpatialPoints")`

: set
coordinates, which may be in a matrix
- coordinates
`signature(obj = "SpatialPoints")`

: retrieves
the coordinates, as matrix
- plot
`signature(x = "SpatialPoints")`

: plot point symbols
- points
`signature(x = "SpatialPoints")`

: add point symbols to plot
- show
`signature(object = "SpatialPoints")`

: prints coordinates

### Note

### Author(s)

Edzer J. Pebesma, e.pebesma@geo.uu.nl

### References

~put references to the literature/web site here ~

### See Also

`SpatialPointsDataFrame-class`

### Examples

x = c(1,2,3,4,5)
y = c(3,2,5,1,4)
S <- SpatialPoints(cbind(x,y))
S <- SpatialPoints(list(x,y))
S <- SpatialPoints(data.frame(x,y))
S
plot(S)

[Package

*sp* version 0.7-12

Index]