whichhalfplane

0th

Percentile

Test Which Side of Infinite Line a Point Falls On

Given an infinite line and a spatial point location, determine which side of the line the point falls on.

Keywords
manip, spatial
Usage
whichhalfplane(L, x, y = NULL)
Arguments
L

Object of class "infline" specifying one or more infinite straight lines in two dimensions.

x,y

Arguments acceptable to xy.coords specifying the locations of the points.

Details

An infinite line $L$ divides the two-dimensional plane into two half-planes. This function returns a matrix M of logical values in which M[i,j] = TRUE if the jth spatial point lies below or to the left of the ith line.

Value

A logical matrix.

infline

Aliases
• whichhalfplane
Examples
# NOT RUN {
L <- infline(p=runif(3), theta=runif(3, max=2*pi))
X <- runifpoint(4)
whichhalfplane(L, X)
# }

Documentation reproduced from package spatstat, version 1.49-0, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.