Generalization of the convex hull of a sample of points in the plane


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Documentation for package ‘alphahull’ version 0.1

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alphahull-package Generalization of the convex hull of a sample of points in the plane
ahull alpha-convex hull calculation
anglesArc Angles of the extremes of an arc
arc Add an arc to a plot
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
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
rotation Clockwise rotation
tricircum Returns the circumcentres of a Delaunay triangulation