From an object of class "listpoly",
create a polygons file for input to the software CaliFloPP
or to the function
califlopp. The format of this file corresponds to the
format 1 of them, i.e you should set the param input to
1 when used as input to califlopp.
# S3 method for listpoly
export(x, filename)None.
Object of class "listpoly"
Name of the file to be created.