R: Class "SpatialPixels"

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(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

### Author(s)

Edzer Pebesma, edzer.pebesma@uni-muenster.de

### 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) # plots grid
    plot(y, grid = FALSE) # plots points

[Package sp version 1.3-2 Index]