plot.tri: Plot a triangulation object

In tripack: Triangulation of Irregularly Spaced Data

Plot a triangulation object

Description

plots the triangulation "x"

Usage

## S3 method for class 'tri'
plot(x, add=FALSE,xlim=range(x$x),ylim=range(x$y), 
  do.points=TRUE, do.labels = FALSE, isometric=FALSE,...)

Arguments

x	object of class "tri"
add	logical, if TRUE, add to a current plot.
do.points	logical, indicates if points should be plotted.
do.labels	logical, indicates if points should be labelled
xlim, ylim	x/y ranges for plot
isometric	generate an isometric plot (default FALSE)
...	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

tri, print.tri, summary.tri

Examples

# random points
plot(tri.mesh(rpois(100,lambda=20),rpois(100,lambda=20),duplicate="remove"))
# use a part of the quakes data set:
data(quakes)
quakes.part<-quakes[(quakes[,1]<=-10.78 & quakes[,1]>=-19.4 &
                     quakes[,2]<=182.29 & quakes[,2]>=165.77),]
quakes.tri<-tri.mesh(quakes.part$lon, quakes.part$lat, duplicate="remove")
plot(quakes.tri)
# use the whole quakes data set 
# (will not work with standard memory settings, hence commented out)
#plot(tri.mesh(quakes$lon, quakes$lat, duplicate="remove"), do.points=F) 

tripack documentation built on Oct. 21, 2024, 5:07 p.m.