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deldir (version 1.0-9)

Delaunay Triangulation and Dirichlet (Voronoi) Tessellation

Description

Calculates the Delaunay triangulation and the Dirichlet or Voronoi tessellation (with respect to the entire plane) of a planar point set. Plots triangulations and tessellations in various ways. Clips tessellations to sub-windows. Calculates perimeters of tessellations. Summarises information about the tiles of the tessellation. Calculates the centroidal Voronoi (Dirichlet) tessellation using Lloyd's algorithm.

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Version

Install

install.packages('deldir')

Monthly Downloads

91,048

Version

1.0-9

License

GPL (>= 2)

Maintainer

Rolf Turner

Last Published

May 17th, 2023

Functions in deldir (1.0-9)

plot.deldir

Plot objects produced by deldir
niProperties

Northern Ireland properties.
duplicatedxy

Determine duplicated points.
deldir-internal

Internal deldir functions
getNbrs

List Delaunay neighbours.
lawSummary

Produce a Lewis-Aboav-Weaire summary of a tessellation.
divchain

Dividing chain.
grapherXmpl

grapherXmpl
cvt

Centroidal Voronoi (Dirichlet) tessellation.
deldir

Delaunay triangulation and Dirichlet tessellation
tileArea

Area of a Dirichlet tile.
plot.triang.list

Plot Delaunay triangles
plot.divchain

Plot a dividing chain.
print.deldir

Print some information about a tessellation/triangulation.
print.tileInfo

Print a summary of tile information.
tile.centroids

Compute centroids of Dirichlet (Voronoi) tiles
seaweed

seaweed
tile.list

Create a list of tiles in a tessellation
triang.list

Create a list of Delaunay triangles
which.tile

Determine the tile containing a given point.
toyPattern

A toy marked point pattern object, with 59 points.
plot.tile.list

Plot Dirichlet (Voronoi) tiles
triMat

Produce matrix of triangle vertex indices.
tileInfo

Extract information from a tile list.
volTriPoints

Solute plume concentration data set.
tilePerim

Calculate tile perimeters.