R: Extract the Domain of any Spatial Object

domain {spatstat.geom} | R Documentation

## Extract the Domain of any Spatial Object

### Description

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.

### Usage

       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, ...)

### Arguments

`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.

### Details

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.

### Value

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"`).

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.

### See Also

`domain.ppm`, `domain.rmhmodel`, `domain.lpp`. `Window`, `Frame`.

### Examples

      domain(redwood)
      domain(bei.extra$elev)
      domain(osteo$pts[[1]])

[Package spatstat.geom version 2.3-2 Index]