methods.layered: Methods for Layered Objects

In spatstat.geom: Geometrical Functionality of the 'spatstat' Family

Methods for Layered Objects

Description

Methods for geometrical transformations of layered objects (class "layered").

Usage

  ## S3 method for class 'layered'
c(...)

  ## S3 method for class 'layered'
shift(X, vec=c(0,0), ...)

  ## S3 method for class 'layered'
rotate(X, ..., centre=NULL)

  ## S3 method for class 'layered'
affine(X, ...)

  ## S3 method for class 'layered'
reflect(X)

  ## S3 method for class 'layered'
flipxy(X)

  ## S3 method for class 'layered'
rescale(X, s, unitname)

  ## S3 method for class 'layered'
scalardilate(X, ...)

Arguments

X	Object of class "layered".
...	Arguments passed to the relevant methods when applying the operation to each layer of X.
s	Rescaling factor passed to the relevant method for rescale. May be missing.
vec	Shift vector (numeric vector of length 2).
centre	Centre of rotation. Either a vector of length 2, or a character string (partially matched to "centroid", "midpoint" or "bottomleft"). The default is the coordinate origin c(0,0).
unitname	Optional. New name for the unit of length. A value acceptable to the function unitname<-

Details

These are methods for the generic functions c, shift, rotate, reflect, affine, rescale, scalardilate and flipxy for the class of layered objects.

A layered object represents data that should be plotted in successive layers, for example, a background and a foreground. See layered.

The method for c can be used to concatenate two or more layered objects ... into a single layered object, retaining the plot arguments.

The other methods apply geometrical operations to each of the layers of the layered object X.

Value

Another object of class "layered".

Author(s)

\adrian

and \rolf

See Also

layered

Examples

  B <- owin(c(5500, 9000), c(2500, 7400))
  L <- layered(Window(demopat), unmark(demopat)[B])
  plot(L)
  plot(rotate(L, pi/4))

spatstat.geom documentation built on Aug. 8, 2025, 6:28 p.m.