mesh.Mesh.get_nodes

Mesh.get_nodes()

Return the set of unique node numbers in the Mesh.

Returns

int array

The sorted node numbers that are actually used in the connectivity table. For a compacted Mesh, it is equal to np.arange(self.n_elems).

Examples

Create a Mesh with four points and one triangle element of type ‘tri3’. So 1 point is not used.

>>> coords = Coords([[0.0, 0.0, 0.0],
...                  [1.0, 0.0, 0.0],
...                  [1.0, 1.0, 0.0],
...                  [0.0, 1.0, 0.0]])
>>> elems = [[0,1,3]]
>>> M = Mesh(coords,elems,eltype='tri3')
>>> print(M.get_nodes())
[0 1 3]