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selfcrossing.psp(A)
"psp"
)."ppp"
).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.
crossing.psp
,
psp.object
,
ppp.object
.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")
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