R: Corners of a rectangle

corners {spatstat} | R Documentation

## Corners of a rectangle

### Description

Returns the four corners of a rectangle

### Usage

     corners(window)

### Arguments

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

### 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.

### 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.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

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

### See Also

`quad.object`, `quadscheme`

### Examples

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

[Package spatstat version 1.54-0 Index]