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@uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner r.turner@auckland.ac.nz