ahull                   alpha-convex hull calculation
alphahull-package       Generalization of the convex hull of a sample
                        of points in the plane
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 hull calculation
complement              Complement of the alpha-convex hull
delvor                  Delaunay triangulation and Voronoi diagram
dummycoor               Semi-infinite edge of the Voronoi diagram
inahull                 Determine whether a point belongs 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
tricircum               Returns the circumcentres of a Delaunay
                        triangulation
