polygonArea: Polygon area
In SDraw: Spatially Balanced Samples of Spatial Objects

Description Usage Arguments Details Value Author(s) See Also Examples

An all-R routine that computes area of all polygons in a SpatialPolygons* object, taking account of holes.

1	polygonArea(x)

`x`	A spatial object inheriting from `SpatialPolygons`

Provides the same answer as rgeos::gArea, but is all-R (does not require rgeos Java library) and does not fire a warning if x is un-projected (i.e., lat-long).

Area of all polygons in x, taking account of holes. Units of area are squared units of coordinates in x. E.g., square meters if coordinates in x are UTM meters, square decimal degrees if coordinates in x are lat-long decimal degrees.

Trent McDonald

sp::SpatialPolygons-class