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.

Author | Beatriz Pateiro-Lopez [aut, cre], Alberto Rodriguez-Casal, [aut]. |

Date of publication | 2016-02-15 13:47:04 |

Maintainer | Beatriz Pateiro-Lopez <beatriz.pateiro@usc.es> |

License | file LICENSE |

Version | 2.1 |

**ahull:** alpha-convex hull calculation

**ahull_track:** alpha-convex hull calculation of tracking data

**alphahull-package:** Generalization of the Convex Hull of a Sample of Points in...

**anglesArc:** Angles of the extremes of an arc

**arc:** Add an arc to a plot

**areaahull:** Area of the alpha-convex hull

**areaahulleval:** Area of the alpha-convex hull

**ashape:** alpha-shape calculation

**complement:** Complement of the alpha-convex hull

**delvor:** Delaunay triangulation and Voronoi diagram

**dummycoor:** Semi-infinite edge of the Voronoi diagram

**dw:** Devroye-Wise estimator

**dw_track:** RBM-sausage calculation of tracking data

**inahull:** Determines for one or more points whether they belong to the...

**inter:** Intersection of two circumferences

**koch:** Construct a Kock snowflake curve

**lengthahull:** Length of the boundary of the alpha-convex hull

**plot.ahull:** Plot the alpha-convex hull

**plot.ashape:** Plot the alpha-shape

**plot.delvor:** Plot the Voronoi diagram and Delaunay traingulation

**rkoch:** Random generation on a Koch snowflake curve

**rotation:** Clockwise rotation

**tricircum:** Returns the circumcentres of a Delaunay triangulation

alphahull

alphahull/inst

alphahull/inst/doc

alphahull/inst/doc/alphahull.rnw

alphahull/inst/doc/alphahull.R

alphahull/inst/doc/alphahull.pdf

alphahull/src

alphahull/src/delaunaycircum.f

alphahull/src/tripack.f

alphahull/NAMESPACE

alphahull/R

alphahull/R/dw.R
alphahull/R/delvor.R
alphahull/R/inter.R
alphahull/R/koch.R
alphahull/R/plot.ahull.R
alphahull/R/complement.R
alphahull/R/dummycoor.R
alphahull/R/inahull.R
alphahull/R/ashape.R
alphahull/R/areaahull.R
alphahull/R/dw_track.R
alphahull/R/arc.R
alphahull/R/tricircum.R
alphahull/R/ahull_track.R
alphahull/R/plot.delvor.R
alphahull/R/areaahulleval.R
alphahull/R/rotation.R
alphahull/R/lengthahull.R
alphahull/R/rkoch.R
alphahull/R/plot.ashape.R
alphahull/R/ahull.R
alphahull/R/anglesArc.R
alphahull/vignettes

alphahull/vignettes/alphahull.rnw

alphahull/vignettes/biblioJSS.bib

alphahull/MD5

alphahull/build

alphahull/build/vignette.rds

alphahull/DESCRIPTION

alphahull/man

alphahull/man/dummycoor.Rd
alphahull/man/anglesArc.Rd
alphahull/man/koch.Rd
alphahull/man/areaahull.Rd
alphahull/man/rkoch.Rd
alphahull/man/areaahulleval.Rd
alphahull/man/plot.delvor.Rd
alphahull/man/ahull.Rd
alphahull/man/arc.Rd
alphahull/man/plot.ahull.Rd
alphahull/man/delvor.Rd
alphahull/man/complement.Rd
alphahull/man/dw_track.Rd
alphahull/man/tricircum.Rd
alphahull/man/lengthahull.Rd
alphahull/man/inahull.Rd
alphahull/man/plot.ashape.Rd
alphahull/man/ashape.Rd
alphahull/man/ahull_track.Rd
alphahull/man/alphahull-package.Rd
alphahull/man/inter.Rd
alphahull/man/dw.Rd
alphahull/man/rotation.Rd
alphahull/LICENSE

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