spatstat.geom (version 2.2-2)

edges: Extract Boundary Edges of a Window.

Description

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.

Value

A line segment pattern (object of class "psp").

Details

The boundary edges of the window x will be extracted as a line segment pattern.

See Also

perimeter for calculating the total length of the boundary.

Examples

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