raster (version 1.1.7)

cellsFromExtent: Cells from Extent

Description

This function returns the cell numbers for a Raster* object that are within a specfied extent (rectangular area), supply either an object of class Extent, or another Raster* object.

Usage

cellsFromExtent(object, extent, expand=FALSE)

Arguments

object

A Raster* object

extent

An object of class Extent (which you can create with newExtent(), or another Raster* object )

expand

Logical. If TRUE, NA is returned for (virtual) cells implied by bndbox, that are outside the RasterLayer (object). If FALSE, only cell numbers for the area where object

Value

• a vector of cell numbers

See Also

extent, polygonFromExtent

Examples

r <- raster()
bb <- extent(-5, 5, -5, 5)
cells <- cellsFromExtent(r, bb)
r <- crop(r, bb)
r[] <- cells

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