R: Crossing Points in a Line Segment Pattern

selfcrossing.psp {spatstat} | R Documentation

## Crossing Points in a Line Segment Pattern

### Description

Finds any crossing points between the line segments in a line segment pattern.

### Usage

      selfcrossing.psp(A)

### Arguments

`A` | Line segment pattern (object of class `"psp"`).

### Details

This function finds any crossing points between different line segments in the line segment pattern `A`.

A crossing point occurs whenever one of the line segments in `A` intersects another line segment in `A`, at a nonzero angle of intersection.

### Value

Point pattern (object of class `"ppp"`).

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

and Rolf Turner r.turner@auckland.ac.nz

### See Also

`crossing.psp`, `psp.object`, `ppp.object`.

### Examples

      a <- psp(runif(10), runif(10), runif(10), runif(10), window=owin())
      plot(a, col="green", main="selfcrossing.psp")
      P <- selfcrossing.psp(a)
      plot(P, add=TRUE, col="red")

[Package spatstat version 1.54-0 Index]