spatstat (version 1.31-3)

plot.linim: Plot Pixel Image on Linear Network

Description

Given a pixel image on a linear network, the pixel values are displayed either as colours or as line widths.

Usage

## S3 method for class 'linim':
plot(x, ..., style = c("colour", "width"), scale, adjust = 1)

Arguments

x

The pixel image to be plotted. An object of class "linim".

...

Extra graphical parameters, passed to plot.im if style="colour", or to polygon if style="width".

style

Character string specifying the type of plot. See Details.

scale

Physical scale factor for representing the pixel values as line widths.

adjust

Adjustment factor for the default scale.

Value

• Null.

Details

This is the plot method for objects of class "linim". Such an object represents a pixel image defined on a linear network.

If style="colour" (the default) then the pixel values of x are plotted as colours, using plot.im.

If style="width" then the pixel values of x are used to determine the widths of thick lines centred on the line segments of the linear network.

References

Ang, Q.W., Baddeley, A. and Nair, G. (2012) Geometrically corrected second-order analysis of events on a linear network, with applications to ecology and criminology. To appear in Scandinavian Journal of Statistics.

See Also

linim, plot.im, polygon

Examples

example(linim)
plot(X)
plot(X, style="width")