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 |