spatstat.geom: rescue.rectangle – R documentation

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rescue.rectangle

Convert Window Back To Rectangle

Description

Determines whether the given window is really a rectangle aligned with the coordinate axes, and if so, converts it to a rectangle object.

Usage

rescue.rectangle(W)

Arguments

`W`	A window (object of class `"owin"`).

Details

This function decides whether the window W is actually a rectangle aligned with the coordinate axes. This will be true if W is

a rectangle (window object of type "rectangle");
a polygon (window object of type "polygonal" with a single polygonal boundary) that is a rectangle aligned with the coordinate axes;
a binary mask (window object of type "mask") in which all the pixel entries are TRUE.

If so, the function returns this rectangle, a window object of type "rectangle". If not, the function returns W.

Value

Another object of class "owin" representing the same window.

Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

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

Examples

w <- owin(poly=list(x=c(0,1,1,0),y=c(0,0,1,1)))
  rw <- rescue.rectangle(w)

  w <- as.mask(unit.square())
  rw <- rescue.rectangle(w)

spatstat.geom

Geometrical Functionality of the 'spatstat' Family

v2.1-0

GPL (>= 2)

Authors

Adrian Baddeley [aut, cre], Rolf Turner [aut], Ege Rubak [aut], Tilman Davies [ctb], Ute Hahn [ctb], Abdollah Jalilian [ctb], Sebastian Meyer [ctb], Suman Rakshit [ctb], Dominic Schuhmacher [ctb], Rasmus Waagepetersen [ctb]

Initial release

2021-04-15