# edges

From spatstat v1.55-1
by Adrian Baddeley

##### Extract Boundary Edges of a Window.

Extracts the boundary edges of a window and returns them as a line segment pattern.

##### Usage

`edges(x, …, window = NULL, check = FALSE)`

##### Arguments

- x
A window (object of class

`"owin"`

), or data acceptable to`as.owin`

, specifying the window whose boundary is to be extracted.- …
Ignored.

- window
Window to contain the resulting line segments. Defaults to

`as.rectangle(x)`

.- check
Logical. Whether to check the validity of the resulting segment pattern.

##### Details

The boundary edges of the window `x`

will be extracted as a line
segment pattern.

##### Value

A line segment pattern (object of class `"psp"`

).

##### See Also

`perimeter`

for calculating the total length of the boundary.

##### Examples

```
# NOT RUN {
edges(square(1))
edges(letterR)
# }
```

*Documentation reproduced from package spatstat, version 1.55-1, License: GPL (>= 2)*

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