sp (version 0.9-78)

bbox-methods: retrieve bbox from spatial data

Description

retrieves spatial bounding box from spatial data

Usage

bbox(obj)

Arguments

obj

object deriving from class "Spatial", or one of classes: "Line", "Lines", "Polygon" or "Polygons", or ANY, which requires obj to be an array with at least two columns

Value

• two-column matrix; the first column has the minimum, the second the maximum values; rows represent the spatial dimensions

Examples

# just 9 points on a grid:
x <- c(1,1,1,2,2,2,3,3,3)
y <- c(1,2,3,1,2,3,1,2,3)
xy <- cbind(x,y)
S <- SpatialPoints(xy)
bbox(S)

# data.frame
data(meuse.grid)
coordinates(meuse.grid) <- ~x+y
gridded(meuse.grid) <- TRUE
bbox(meuse.grid)