R: Distance from points

distanceFromPoints {raster} | R Documentation

## Distance from points

### Description

The function calculates the distance from a set of points to all cells of a RasterLayer.

The distance unit is in meters if the RasterLayer is not projected (`+proj=longlat`) and in map units (typically meters) when it is projected.

### Usage

    distanceFromPoints(object, xy, filename='', ...)

### Arguments

`object` | Raster object
`xy` | matrix of x and y coordinates, or a SpatialPoints* object.
`filename` | character. Optional filename for the output RasterLayer
`...` | Additional arguments as for `writeRaster`

### Value

RasterLayer object

### See Also

`distance`, `gridDistance`, `pointDistance`

### Examples

    r <- raster(ncol=36,nrow=18)
    xy = c(0,0)
    dist <- distanceFromPoints(r, xy)
    #plot(dist)

[Package raster version 2.5-8 Index]