raster (version 2.5-8)

distanceFromPoints: 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

# NOT RUN {
r <- raster(ncol=36,nrow=18)
xy = c(0,0)
dist <- distanceFromPoints(r, xy) 
#plot(dist)
# }