SpatialPixels-class {sp}R Documentation

Class "SpatialPixels" ~~~

Description

class for defining a pixels, forming a possibly incomplete rectangular grid of arbitrary dimension

Objects from the Class

Objects are created by using e.g.

SpatialPixels(points)

with points of class SpatialPoints-class

Slots

grid
object of class GridTopology-class, defining the grid topology (offset, cellsize, dim)
grid.index
integer; index of points in full grid
coords
coordinates of points, or bbox of grid
bbox:
Object of class "matrix"; bounding box
proj4string:
Object of class "CRS"; projection

Extends

Class "SpatialPoints" directly; Class "Spatial", by class "SpatialPoints".

Methods

coordinates
signature(x = "SpatialPixels"): calculates coordinates for each point on the grid; coordinates are not stored in objects of class SpatialGrid
summary
signature(x = "SpatialPixels"): gives summary
plot
signature(x = "SpatialPixels"): plots cell centers
"["
signature(x = "SpatialPixels"): select pixel cells

Note

Author(s)

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

References

See Also

SpatialPixelsDataFrame-class, SpatialGrid-class

Examples

data(meuse.grid)
pts = meuse.grid[c("x", "y")]
y = SpatialPixels(SpatialPoints(pts))
class(y)
y
summary(y)
plot(y)

[Package sp version 0.7-12 Index]