| alphahull-package | Generalization of the Convex Hull of a Sample of Points in the Plane | 
| ahull | alpha-convex hull calculation | 
| ahull_track | alpha-convex hull calculation of tracking data | 
| anglesArc | Angles of the extremes of an arc | 
| arc | Add an arc to a plot | 
| areaahull | 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 alpha-convex hull | 
| 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 |