mymesh.delaunay.AlphaShape

mymesh.delaunay.AlphaShape(NodeCoords, alpha, method=None, Type='surf')

Alpha shapes in 2D or 3D

Parameters:

• NodeCoords (array_like) – Node coordinates. If coordinates are two dimensional (shape=(n,2)), a 2D alpha shape will be produce, for three dimensional coordinates, a 3D alpha shape will be produced.

• alpha (float or list of floats) – Alpha value. If given as a list of values, a corresponding list of meshes will be returned

• method (str, optional) – Delaunay triangulation/tetrahedralization method used to determine the alpha shape, by default None. See Triangulate()/ Tetrahedralize() for more details and the default method.

• Type (str, optional) – Type of the returned Mesh or Meshes, by default ‘surf’. Note that if using Type=’vol’, tetrahedral meshes may have small unnoticed holes that could pose problems for some applications.

Returns:

M – Mesh of the alpha shape. If alpha is given as a list, a corresponding list of meshes will be returned.

Return type:

mymesh.mesh or list of mymesh.mesh