ashp#

ashp is a maintained fork of alphashape for computing alpha shapes (concave hulls) of point clouds in 2-D and 3-D, with a numba-accelerated, vectorised core and a set of data-driven tools for choosing the alpha parameter.

An alpha shape generalises the convex hull: keeping only the Delaunay simplices whose circumradius is below 1 / alpha carves the hull inward to follow the shape of the data [Edelsbrunner et al., 1983, Edelsbrunner and Mücke, 1994].

Indices and tables#