plot.voronoi {tripack}R Documentation

Plot a voronoi object

Description

Plots the mosaic "voronoi.obj".

Dashed lines are used for outer tiles of the mosaic.

Usage

plot(voronoi.obj, add=FALSE, do.points=T...)

Arguments

voronoi.obj object of class "voronoi"
add logical, if TRUE, add to a current plot.
do.points logical, indicates if points should be plotted.
... additional plot parameters

Value

None

Author(s)

A. Gebhardt

References

R. J. Renka (1996). Algorithm 751: TRIPACK: a constrained two-dimensional {Delaunay} triangulation package. ACM Transactions on Mathematical Software. 22, 1-8.

See Also

voronoi, print.voronoi, summary.voronoi

Examples

# generate a random mosaic
plot(voronoi.mosaic(runif(100),runif(100),duplicate="remove"))
# use a part of the quakes data set:
data(quakes)
quakes.part<-quakes[(quakes[,1]<=-17 & quakes[,1]>=-19.0 &
                     quakes[,2]<=182.0 & quakes[,2]>=180.0),]
quakes.vm<-voronoi.mosaic(quakes.part$lon, quakes.part$lat, duplicate="remove")
plot(quakes.vm)
# use the whole quakes data set 
# (will not work with standard memory settings, hence commented out here)
#plot(voronoi.mosaic(quakes$lon, quakes$lat, duplicate="remove"))