alphahull v2.2
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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.
Functions in alphahull
| Name | Description | |
| dw_track | RBM-sausage calculation of tracking data | |
| rotation | Clockwise rotation | |
| plot.ahull | Plot the alpha-convex hull | |
| rkoch | Random generation on a Koch snowflake curve | |
| lengthahull | Length of the boundary of the alpha-convex hull | |
| dw | Devroye-Wise estimator | |
| ashape | alpha-shape calculation | |
| dummycoor | Semi-infinite edge of the Voronoi diagram | |
| inahull | Determines for one or more points whether they belong to the alpha-convex hull | |
| plot.delvor | Plot the Voronoi diagram and Delaunay traingulation | |
| plot.ashape | Plot the alpha-shape | |
| tricircum | Returns the circumcentres of a Delaunay triangulation | |
| koch | Construct a Kock snowflake curve | |
| inter | Intersection of two circumferences | |
| areaahull | Area of the alpha-convex hull | |
| anglesArc | Angles of the extremes of an arc | |
| delvor | Delaunay triangulation and Voronoi diagram | |
| ahull_track | alpha-convex hull calculation of tracking data | |
| arc | Add an arc to a plot | |
| complement | Complement of the alpha-convex hull | |
| alphahull-package | Generalization of the Convex Hull of a Sample of Points in the Plane | |
| ahull | alpha-convex hull calculation | |
| areaahulleval | Area of the alpha-convex hull | |
| No Results! | ||
Vignettes of alphahull
| Name | ||
| alphahull.rnw | ||
| biblioJSS.bib | ||
| No Results! | ||
Last month downloads
Details
| Date | 2019-06-19 |
| License | file LICENSE |
| NeedsCompilation | yes |
| License_restricts_use | yes |
| Packaged | 2019-06-19 13:07:31 UTC; beatriz |
| Repository | CRAN |
| Date/Publication | 2019-06-21 17:30:03 UTC |
| imports | ggplot2 , R.utils , sgeostat , spatstat , splancs , tripack |
| Contributors | Beatriz Pateiro-Lopez, Alberto Rodriguez-Casal |
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