For plot.linfun the result is the same as
for plot.im.
For the conversion methods, the result is an object of the
required type: as.linim.linfun returns an object of
class "linim", and so on.
Details
These are methods for the generic functions
plot, print
and the spatstat generic functions
as.owin,
as.linim.
An object of class "linfun" represents a
mathematical function that could be evaluated at any location
on a linear network. It is essentially an Rfunction with some
extra attributes.
The method as.linnet.linfun extracts the linear network
on which the function is defined.
The method as.owin.linfun extracts the two-dimensional spatial
window containing the linear network.
The method as.linim.linfun converts the function to a pixel
image on the linear network (an object of class "linim").