New question #104471 on DOLFIN:
https://answers.launchpad.net/dolfin/+question/104471
I want to solve for a vector and two scalars, and I have specified the
FunctionSpace W intuitively correctly,
but the BC complains that my dimension is incorrect (for the vector). What am I
doing wrong?
mesh=UnitSquare(10,10)
V=VectorFunctionSpace(mesh,"CG",2)
Q=FunctionSpace(mesh,"CG",1)
R=FunctionSpace(mesh,"CG",1)
W=V+Q+R
def bound0(x):
x[0]<DOLFIN_EPS
v0=Constant((0.0,0.0))
bc=DirichletBC(W.sub(0),v0,bound0)
bc=DirichletBC(W.sub(0),v0,bound0)
File "/usr/lib/python2.6/dist-packages/dolfin/mesh/bcs.py", line 56, in
__init__
cpp.DirichletBC.__init__(self, *args)
File "/usr/lib/python2.6/dist-packages/dolfin/cpp.py", line 9390, in __init__
_cpp.DirichletBC_swiginit(self,_cpp.new_DirichletBC(*args))
RuntimeError: *** Error: Unable to create boundary condition. Reason: Illegal
value 2 for value dimension, should be 3.
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