spatstat.random (version 3.3-3)

rpoisline: Generate Poisson Random Line Process

Description

Generate a random pattern of line segments obtained from the Poisson line process.

Usage

rpoisline(lambda, win=owin())

Value

A line segment pattern (an object of class "psp").

The result also has an attribute called "lines" (an object of class "infline" specifying the original infinite random lines) and an attribute "linemap" (an integer vector mapping the line segments to their parent lines).

Arguments

lambda

Intensity of the Poisson line process. A positive number.

win

Window in which to simulate the pattern. An object of class "owin" or something acceptable to as.owin.

Author

Adrian Baddeley and Rolf Turner

Details

This algorithm generates a realisation of the uniform Poisson line process, and clips it to the window win.

The argument lambda must be a positive number. It controls the intensity of the process. The expected number of lines intersecting a convex region of the plane is equal to lambda times the perimeter length of the region. The expected total length of the lines crossing a region of the plane is equal to lambda * pi times the area of the region.

See Also

psp

Examples

 # uniform Poisson line process with intensity 10,
 # clipped to the unit square
 rpoisline(10)