R: Determine Type of Window

is.rectangle {spatstat} | R Documentation

## Determine Type of Window

### Description

Determine whether a window is a rectangle, a polygonal region, or a binary mask.

### Usage

      is.rectangle(w)
      is.polygonal(w)
      is.mask(w)

### Arguments

`w` | Window to be inspected. An object of class `"owin"`.

### Details

These simple functions determine whether a window `w` (object of class `"owin"`) is a rectangle (`is.rectangle(w) = TRUE`), a domain with polygonal boundary (`is.polygonal(w) = TRUE`), or a binary pixel mask (`is.mask(w) = TRUE`).

### Value

Logical value, equal to `TRUE` if `w` is a window of the specified type.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

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

### See Also

`owin`

[Package spatstat version 1.54-0 Index]