GridTopology-class {sp} | R Documentation |

## Class "GridTopology" ~~~

### Description

class for defining a rectangular grid of
arbitrary dimension

### Objects from the Class

Objects are created by using e.g.

GridTopology(c(0,0), c(1,1), c(5,5))

see SpatialGrid

### Slots

`cellcentre.offset`

:- numeric; vector with the smallest coordinates for
each dimension; coordinates refer to the cell centre
`cellsize`

:- numeric; vector with the cell size in each dimension
`cells.dim`

:- integer; vector with number of cells in each dimension
`bbox`

:- Object of class
`"matrix"`

; bounding box
`proj4string`

:- Object of class
`"CRS"`

; projection

### Extends

### Methods

- coordinates
`signature(x = "SpatialGrid")`

: calculates coordinates for
each point on the grid
- coerce
`signature(from = "GridTopology", to = "data.frame")`

: convert to data.frame
with columns cellcentre.offset, cellsize and cells.dim

### Note

### Author(s)

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

### References

### See Also

`SpatialGridDataFrame-class`

, `SpatialGrid-class`

### Examples

x = GridTopology(c(0,0), c(1,1), c(5,5))
class(x)
x
summary(x)
coordinates(x)
y = SpatialGrid(grid = x)
class(y)
y

[Package

*sp* version 0.7-12

Index]