sp (version 1.2-3)

SpatialPixels-class: Class "SpatialPixels"

Description

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

Arguments

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(object = "SpatialPixels"): summarize object
plot
signature(x = "SpatialPixels"): plots cell centers
"["
signature(x = "SpatialPixels"): select pixel cells; the argument drop=FALSE (default) does not recalculate grid topology for the selection, if drop=TRUE the grid topology is recomputed, and might change.
rbind
signature(x = "SpatialPixels"): rbind-like method

See Also

SpatialPixelsDataFrame-class, SpatialGrid-class

Examples

Run this code
data(meuse.grid)
pts = meuse.grid[c("x", "y")]
y = SpatialPixels(SpatialPoints(pts))
class(y)
y
summary(y)
plot(y) # plots grid
plot(y, grid = FALSE) # plots points

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