spatstat.geom (version 3.7-0)

trim.rectangle: Cut margins from rectangle

Description

Trims a margin from a rectangle.

Usage

trim.rectangle(W, xmargin=0, ymargin=xmargin)

Value

Another object of class "owin" representing the window after margins are trimmed.

Details

This is a simple convenience function to trim off a margin of specified width and height from each side of a rectangular window. Unequal margins can also be trimmed.

See Also

grow.rectangle, erosion, owin.object

Examples

  w <- square(10)
  # trim a margin of width 1 from all four sides
  square9 <- trim.rectangle(w, 1)

  # trim margin of width 3 from the right side
  # and margin of height 4 from top edge.
  v <- trim.rectangle(w, c(0,3), c(0,4))