plot.voronoi {tripack}R Documentation

Plot a xect

Description

Plots the mosaic "x".

Dashed lines are used for outer tiles of the mosaic.

Usage

plot.voronoi(x, add=FALSE, xlim=c(min(x$tri$x)-0.1*diff(range(x$tri$x)), max(x$tri$x) + 0.1 *diff(range(x$tri$x))),   ylim=c(min(x$tri$y)-0.1*diff(range(x$tri$y)),max(x$tri$y)+0.1*diff(range(x$tri$y))),all=FALSE,do.points=TRUE,main="Voronoi mosaic",sub=deparse(substitute(x)), ...)

Arguments

x object of class "voronoi"
add logical, if TRUE, add to a current plot.
xlim x plot ranges, by default modified to hide dummy points outside of the plot
ylim y plot ranges, by default modified to hide dummy points outside of the plot
all show all (including dummy points in the plot
do.points logical, indicates if points should be plotted.
main plot title
sub plot subtitle
... 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"))

[Package tripack version 1.2-10 Index]