ConcaveHullMesh

ConcaveHullMesh[{p1, p2, ...}] gives the concave hull mesh from the points p1, p2, ....

ConcaveHullMesh[{p1, p2, ...}, α] gives the concave hull mesh of the specified parameter α.

ConcaveHullMesh[{p1, p2, ...}, α, d] gives the concave hull mesh of cells of dimension d.

Examples

Create a concave hull mesh from random points:

pts = RandomReal[1, {50, 2}];
ConcaveHullMesh[pts]

With a specified alpha parameter:

ConcaveHullMesh[pts, 0.1]

Please visit the official Wolfram Language Reference for more details.