spplot {raster} | R Documentation

## Use spplot to plot a Raster* object

### Description

A wrapper function around spplot (sp package). With spplot it is easy to map several layers with a single legend for all maps. ssplot is itself a wrapper around the levelplot function in the lattice package, and see the help for these functions for additional options.

One of the advantages of these wrapper functions is the additional `maxpixels` argument to sample large Raster objects for faster drawing.

### Methods

`spplot(obj, ..., maxpixels=50000, as.table=TRUE)`

| `obj` | A Raster* object
| `...` | Any argument that can be passed to `spplot` and levelplot
| `maxpixels` | Integer. Number of pixels to sample from each layer of large Raster objects

### See Also

`plot, plotRGB`

The rasterVis package has more advanced plotting methods for Raster objects

### Examples

    r <- raster(system.file("external/test.grd", package="raster"))
    s <- stack(r, r*2)
    names(s) <- c('meuse', 'meuse x 2')

    spplot(s)

    pts <- data.frame(sampleRandom(r, 10, xy=TRUE))
    coordinates(pts) <- ~ x + y

    spplot(s, scales = list(draw = TRUE),
    		xlab = "easting", ylab = "northing",
    		col.regions = rainbow(99, start=.1),
    		names.attr=c('original', 'times two'),
    		sp.layout = list("sp.points", pts, pch=20, cex=2, col='black'),
    		par.settings = list(fontsize = list(text = 12)), at = seq(0, 4000, 500))

[Package raster version 2.5-2 Index]