mesh.Mesh.match_centroids

Mesh.match_centroids(mesh, **kargs)

Match elements of Mesh with elements of self.

Elements are matched by their centroids.

Parameters

mesh: Mesh object

This Mesh object should have the same eltype as self

Returns

1-dim int array

The array has a length of mesh.n_elems(). For each element in Mesh, it holds the index of an element in self.elems coinciding with it, or a value -1 if there is no matching elements.

Examples

>>> M1 = Mesh(eltype='quad4').subdivide(2,2)
>>> M2 = M1.translate([0.5,0.0,0.0])
>>> print(M1.match_centroids(M2))
[ 1 -1  3 -1]