Extract the Domain of any Spatial Object
Given a spatial object such as a point pattern, in any number of dimensions, this function extracts the spatial domain in which the object is defined.
domain(X, ...) ## S3 method for class 'ppp' domain(X, ...) ## S3 method for class 'psp' domain(X, ...) ## S3 method for class 'im' domain(X, ...) ## S3 method for class 'ppx' domain(X, ...) ## S3 method for class 'pp3' domain(X, ...) ## S3 method for class 'quad' domain(X, ...) ## S3 method for class 'quadratcount' domain(X, ...) ## S3 method for class 'tess' domain(X, ...) ## S3 method for class 'layered' domain(X, ...) ## S3 method for class 'distfun' domain(X, ...) ## S3 method for class 'nnfun' domain(X, ...) ## S3 method for class 'funxy' domain(X, ...)
X |
A spatial object such as a point pattern (in any number of dimensions), line segment pattern or pixel image. |
... |
Extra arguments. They are ignored by all the methods listed here. |
The function domain is generic.
For a spatial object X in any number of dimensions,
domain(X) extracts the spatial domain in which X is
defined.
For a two-dimensional object X, typically domain(X)
is the same as Window(X).
Exceptions occur for methods related to linear networks.
A spatial object representing the domain of X.
Typically a window (object of class "owin"),
a three-dimensional box ("box3"), a multidimensional
box ("boxx") or a linear network ("linnet").
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.
domain(cells) domain(bei.extra$elev)
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