# plot.tri: Plot a triangulation object In tripack: Triangulation of Irregularly Spaced Data

## Description

plots the triangulation `"x"`

## Usage

 ```1 2 3``` ```## 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

None

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.

`tri`, `print.tri`, `summary.tri`

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11``` ```# 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) ```

### Example output

```
```

tripack documentation built on May 29, 2017, 9:52 p.m.