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assemble form with 2 different meshes

+2 votes 
Q1 = FunctionSpace(mesh1,'CG',1)
Q2 = FunctionSpace(mesh2,'CG',2)
f1 = Function(Q1)
f2 = Function(Q2)
F = f1*f2*dx

How can you do

assemble(exp(f2/f1)*dx,mesh=mesh2)

so that assemble returns a vector on Q1?

asked Apr 15, 2014 by chaffra FEniCS User (1,830 points) 
assemble(exp(f2/f1)*dx,mesh=mesh2)

cannot return a vector as there is no TestFunction neither it is linear in it.

commented Apr 29, 2014 by Jan Blechta FEniCS Expert (51,420 points)
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