RMpolygon referes to the indicator function of
a typical Poisson polygon
Usage
RMpolygon(lambda, safetyfactor)
Arguments
lambda
intensity of the hyperplan process creating the random shape function
The default value is 1.
safetyfactor
the shape function is cut after safetyfactor times the
$d$th root of the area mean or mean volume of the polygon.
Here, $d$ is the dimension of the field.
The default value is 15. (The larger the more precise is the