deldir v0.1-25

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Delaunay Triangulation and Dirichlet (Voronoi) Tessellation

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.

Functions in deldir

Name Description
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.
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Details

Date 2020-02-03
LazyData true
ByteCompile true
License GPL (>= 2)
NeedsCompilation yes
Packaged 2020-02-02 19:35:25 UTC; rolf
Repository CRAN
Date/Publication 2020-02-03 09:30:02 UTC
imports graphics , grDevices
suggests polyclip
depends R (>= 0.99)
Contributors Rolf Turner

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