spatstat.geom (version 2.0-1)

selfcrossing.psp: 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").

Value

Point pattern (object of class "ppp").

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.

See Also

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

Examples

# NOT RUN {
  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")
# }