Package: alphahull 2.5

alphahull: Generalization of the Convex Hull of a Sample of Points in the Plane

Computation of the alpha-shape and alpha-convex hull of a given sample of points in the plane. The concepts of alpha-shape and alpha-convex hull generalize the definition of the convex hull of a finite set of points. The programming is based on the duality between the Voronoi diagram and Delaunay triangulation. The package also includes a function that returns the Delaunay mesh of a given sample of points and its dual Voronoi diagram in one single object.

Authors:Beatriz Pateiro-Lopez [aut, cre], Alberto Rodriguez-Casal, [aut].

alphahull_2.5.tar.gz
alphahull_2.5.zip(r-4.7)alphahull_2.5.zip(r-4.6)alphahull_2.5.zip(r-4.5)
alphahull_2.5.tgz(r-4.6-any)alphahull_2.5.tgz(r-4.5-any)
alphahull_2.5.tar.gz(r-4.7-any)alphahull_2.5.tar.gz(r-4.6-any)
alphahull_2.5.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
alphahull/json (API)

# Install 'alphahull' in R:

install.packages('alphahull', repos = c('https://beatrizpateiro.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/beatrizpateiro/alphahull/issues

On CRAN:

8.90 score 1 stars 29 packages 511 scripts 4.5k downloads 8 mentions 18 exports 38 dependencies

Last updated from:88f9ed9d55. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	149
source / vignettes	OK	235
linux-release-x86_64	OK	146
macos-release-arm64	OK	99
macos-oldrel-arm64	OK	82
windows-devel	OK	104
windows-release	OK	92
windows-oldrel	OK	91
wasm-release	OK	126

Exports:ahull ahull_track anglesArc arc areaahull areaahulleval ashape complement delvor dummycoor dw dw_track inahull inter koch lengthahull rkoch rotation

Dependencies:abind cli cpp11 deldir farver ggplot2 glue gtable interp isoband labeling lattice lifecycle Matrix polyclip R.methodsS3 R.oo R.utils R6 RColorBrewer Rcpp RcppEigen rlang S7 scales sgeostat sp spatstat.data spatstat.geom spatstat.random spatstat.sparse spatstat.univar spatstat.utils splancs tensor vctrs viridisLite withr

Generalizing the Convex Hull of a Sample: The R Package alphahull

Introduction | The alphaconvex hull | Implementation | Conclusions

Rendered fromalphahull.rnwusingutils::Sweave

Last update: 2023-03-28
Started: 2023-03-28

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Generalization of the Convex Hull of a Sample of Points in the Plane	alphahull-package
alpha-convex hull calculation	ahull
alpha-convex hull calculation of tracking data	ahull_track
Angles of the extremes of an arc	anglesArc
Add an arc to a plot	arc
Area of the alpha-convex hull	areaahull
alpha-shape calculation	ashape
Complement of the alpha-convex hull	complement
Delaunay triangulation and Voronoi diagram	delvor
Semi-infinite edge of the Voronoi diagram	dummycoor
Devroye-Wise estimator	dw
RBM-sausage calculation of tracking data	dw_track
Determines for one or more points whether they belong to the alpha-convex hull	inahull
Intersection of two circumferences	inter
Construct a Kock snowflake curve	koch
Length of the boundary of the alpha-convex hull	lengthahull
Plot the alpha-convex hull	plot.ahull
Plot the alpha-shape	plot.ashape
Plot the Voronoi diagram and Delaunay traingulation	plot.delvor
Random generation on a Koch snowflake curve	rkoch
Clockwise rotation	rotation