Converts a npsp object to a sp object.
as.sp(obj, ...)
# S3 method for class 'grid.par'
as.sp(obj, ...)
# S3 method for class 'data.grid'
as.sp(obj, data.ind = NULL, proj4string = CRS(as.character(NA)), ...)
as.sp.grid.par
returns a GridTopology-class
object.
as.sp.data.grid
returns a SpatialGridDataFrame-class
object.