# runifpointOnLines: Generate N Uniform Random Points On Line Segments In spatstat: Spatial Point Pattern Analysis, Model-Fitting, Simulation, Tests

## Description

Given a line segment pattern, generate a random point pattern consisting of `n` points uniformly distributed on the line segments.

## Usage

 `1` ```runifpointOnLines(n, L, nsim=1) ```

## Arguments

 `n` Number of points to generate. `L` Line segment pattern (object of class `"psp"`) on which the points should lie. `nsim` Number of simulated realisations to be generated.

## Details

This command generates a point pattern consisting of `n` independent random points, each point uniformly distributed on the line segment pattern. This means that, for each random point,

• the probability of falling on a particular segment is proportional to the length of the segment; and

• given that the point falls on a particular segment, it has uniform probability density along that segment.

If `n` is a single integer, the result is an unmarked point pattern containing `n` points. If `n` is a vector of integers, the result is a marked point pattern, with `m` different types of points, where `m = length(n)`, in which there are `n[j]` points of type `j`.

## Value

If `nsim = 1`, a point pattern (object of class `"ppp"`) with the same window as `L`. If `nsim > 1`, a list of point patterns.

## Author(s)

and \rolf

`psp`, `ppp`, `pointsOnLines`, `runifpoint`
 ```1 2 3 4 5``` ``` X <- psp(runif(10), runif(10), runif(10), runif(10), window=owin()) Y <- runifpointOnLines(20, X) plot(X, main="") plot(Y, add=TRUE) Z <- runifpointOnLines(c(5,5), X) ```