`corners(window)`

- A list with two components
`x`

and`y`

, which are numeric vectors of length 4 giving the coordinates of the four corner points of the (bounding rectangle of the) window.

`window`

is of type `"rectangle"`

this returns the
four corners of the window itself;
otherwise, it returns the corners of the bounding rectangle
of the window.`quad.object`

,
`quadscheme`

library(spatstat) w <- unit.square() corners(w) # returns list(x=c(0,1,0,1),y=c(0,0,1,1))