Returns the four corners of a rectangle
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.
This trivial function is occasionally convenient.
If 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.
# NOT RUN {
w <- unit.square()
corners(w)
# returns list(x=c(0,1,0,1),y=c(0,0,1,1))
# }
Run the code above in your browser using DataLab