distanceFromPoints {raster} | R Documentation |
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.
distanceFromPoints(object, xy, filename='', ...)
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 |
RasterLayer object
distance
, gridDistance
, pointDistance
r <- raster(ncol=36,nrow=18) xy = c(0,0) dist <- distanceFromPoints(r, xy) #plot(dist)