as.rectangle: Window Frame In spatstat.geom: Geometrical Functionality of the 'spatstat' Family

 as.rectangle R Documentation

Window Frame

Description

Extract the window frame of a window or other spatial dataset

Usage

`````` as.rectangle(w, ...)
``````

Arguments

 `w` A window, or a dataset that has a window. Either a window (object of class `"owin"`), a pixel image (object of class `"im"`) or other data determining such a window. `...` Optional. Auxiliary data to help determine the window. If `w` does not belong to a recognised class, the arguments `w` and `...` are passed to `as.owin` to determine the window.

Details

This function is the quickest way to determine a bounding rectangle for a spatial dataset.

If `w` is a window, the function just extracts the outer bounding rectangle of `w` as given by its elements `xrange,yrange`.

The function can also be applied to any spatial dataset that has a window: for example, a point pattern (object of class `"ppp"`) or a line segment pattern (object of class `"psp"`). The bounding rectangle of the window of the dataset is extracted.

Use the function `boundingbox` to compute the smallest bounding rectangle of a dataset.

Value

A window (object of class `"owin"`) of type `"rectangle"` representing a rectangle.

Author(s)

and \rolf

`owin`, `as.owin`, `boundingbox`

Examples

``````  w <- owin(c(0,10),c(0,10), poly=list(x=c(1,2,3,2,1), y=c(2,3,4,6,7)))
r <- as.rectangle(w)
# returns a 10 x 10 rectangle

as.rectangle(lansing)

as.rectangle(copper\$SouthLines)
``````

spatstat.geom documentation built on Oct. 20, 2023, 9:06 a.m.