# plot.owin

0th

Percentile

##### Plot a Spatial Window

Plot a two-dimensional window of observation for a spatial point pattern

Keywords
spatial
##### Usage
plot.owin(x, main, ..., box=TRUE, edge=0.04)
##### Arguments
x
The window to be plotted. An object of class owin, or data which can be converted into this format by as.owin().
main
text to be displayed as a title above the plot.
...
extra arguments passed to the generic plot function.
box
logical flag; if TRUE, plot the enclosing rectangular box
edge
nonnegative number; the plotting region will have coordinate limits that are 1 + edge times as large as the limits of the rectangular box that encloses the pattern.
##### Details

This is the plot method for the class owin. The action is to plot the boundary of the window on the current plot device, using equal scales on the x and y axes.

If the window x is of type "rectangle" or "polygonal", the boundary of the window is plotted as a polygon or series of polygons. If x is of type "mask" the discrete raster approximation of the window is displayed as a binary image (white inside the window, black outside).

##### Value

• none.

owin.object, plot.ppp

• plot.owin
##### Examples
library(spatstat)

# rectangular window
data(nztrees)
plot(nztrees\$window)
abline(v=148, lty=2)

# polygonal window
plot(c(0,1),c(0,1),type="n")
bdry <- locator()
# click the vertices of a polygon (anticlockwise)
w <- owin(c(0,1), c(0,1), poly=bdry)
plot(w)

plot(we)