rescue.rectangle

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Convert Window Back To Rectangle

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

Keywords
manip, spatial
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.

See Also

as.owin, owin.object

Aliases
  • rescue.rectangle
Examples
# NOT RUN {
  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)
# }
Documentation reproduced from package spatstat, version 1.60-1, License: GPL (>= 2)

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