CONVERT XY COORDS TO SPATIALPOLYGONS

Given a matrix of coords with cols (x,y), and a character string representing a coordinate projection, returns a SpatialPolygon defined by coords of mat in projection crs_ref.

spatialize(mat, crs_ref)

Arguments

mat	is a matrix of coords with cols (x,y)
crs_ref	is a character string representing a coordinate projection for proj4string

Value

a SpatialPolygon defined by coords of mat in projection crs_ref