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spatstat.geom (version 3.2-5)

corners: Corners of a rectangle

Description

Returns the four corners of a rectangle

Usage

corners(window)

Value

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.

Arguments

window

A window. An object of class owin, or data in any format acceptable to as.owin().

Author

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

and Rolf Turner r.turner@auckland.ac.nz

Details

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.

See Also

quad.object, quadscheme

Examples

Run this code
  w <- unit.square()
  corners(w)
       # returns list(x=c(0,1,0,1),y=c(0,0,1,1))

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