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deldir (version 0.1-25)

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.

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Version

Install

install.packages('deldir')

Monthly Downloads

83,897

Version

0.1-25

License

GPL (>= 2)

Maintainer

Rolf Turner

Last Published

February 3rd, 2020

Functions in deldir (0.1-25)

deldir

Delaunay triangulation and Dirichlet tessellation
seaweed

seaweed
tilePerim

Calculate tile perimeters.
triang.list

Create a list of Delaunay triangles
plot.tile.list

Plot Dirchlet (Voronoi) tiles
tile.centroids

Compute centroids of Dirchlet (Voronoi) tiles
triMat

Produce matrix of triangle vertex indices.
plot.triang.list

Plot Delaunay triangles
print.tileInfo

Print a summary of tile information.
tile.list

Create a list of tiles in a tessellation
tileInfo

Extract information from a tile list.
which.tile

Determine the tile containing a given point.
niProperties

Northern Ireland properties.
plot.divchain

Plot a dividing chain.
divchain.deldir

Dividing chain; “deldir” method.
lawSummary

Produce a Lewis-Aboav-Weaire summary of a tessellation.
deldir-internal

Internal deldir functions
duplicatedxy

Determine duplicated points.
divchain.default

Dividing chain; default method.
plot.deldir

Plot objects produced by deldir
divchain

Dividing chain; generic.