Variable doesn't implement __invert__

[guyer]

>>> a = Variable(False)
>>> b = ~a
Traceback (most recent call last):
  ...
TypeError: bad operand type for unary ~: 'Variable'

We've never noticed this when masking out cells because getCellCenters() and getFaceCenters() return NumPy arrays, not MeshVariables

Imported from trac ticket #185, created by guyer on 04-25-2009 at 08:07, last modified: 04-25-2009 at 08:42

[guyer]

Fixed in r3040

Trac comment by guyer on 04-25-2009 at 08:42