"SpatialPolygons" to "owin"Package polyCub implements coerce-methods
(as(object, Class)) to convert "'>SpatialPolygons"
(or "'>Polygons" or "'>Polygon")
to "owin".
They are also available as as.owin.* functions to support
polyCub.midpoint. However, these are no registered S3 methods
for as.owin, since package spatstat is
optional.
Note that the maptools package contains an alternative implementation
of coercion from "SpatialPolygons" to "owin" (and reverse),
and R will use the S4 coerce-method that was loaded last,
and prefer the as.owin.SpatialPolygons S3-method exported from
maptools if attached.
as.owin.SpatialPolygons(W, ...)as.owin.Polygons(W, ...)
as.owin.Polygon(W, ...)
an object of class "SpatialPolygons",
"Polygons", or "Polygon".
further arguments passed to owin.