problem to use entities(3) in ubuntu

Question

Hello every one:

I want to get all elements containing a node with the idx known

Vertex(omega, idx).entities(3)
>>[]

I have this problem after an ubuntu upgrade, but I want to see your opinion for fix this problem.

Comments

Please provide a minimal but complete example.

Answer 1

Hi, is this your problem?

from dolfin import *
mesh = UnitCubeMesh(2, 2, 2)
d = mesh.topology().dim()

# There's always cell-vertex connectivity
print Cell(mesh, 0).entities(0)

# Not the other way around
print Vertex(mesh, 0).entities(d)

# You must initialize it
mesh.init(0, d)
print Vertex(mesh, 0).entities(d)

Comments

Works fine locally with FEniCS 1.4.0

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It helped me also. Thanks.