# incircle

0th

Percentile

##### Find Largest Circle Inside Window

Find the largest circle contained in a given window.

Keywords
spatial, math
##### Usage
incircle(W)inradius(W)
##### Arguments
W

A window (object of class "owin").

##### Details

Given a window W of any type and shape, the function incircle determines the largest circle that is contained inside W, while inradius computes its radius only.

For non-rectangular windows, the incircle is computed approximately by finding the maximum of the distance map (see distmap) of the complement of the window.

##### Value

The result of incircle is a list with entries x,y,r giving the location (x,y) and radius r of the incircle.

The result of inradius is the numerical value of radius.

centroid.owin

• incircle
##### Examples
# NOT RUN {
W <- square(1)
Wc <- incircle(W)
plot(W)
plot(disc(Wc$r, c(Wc$x, Wc$y)), add=TRUE) plot(letterR) Rc <- incircle(letterR) plot(disc(Rc$r, c(Rc$x, Rc$y)), add=TRUE)

plot(disc(Rc$r, c(Rc$x, Rc\$y)), add=TRUE)