Thanks Lawrence,

I should note that 
w1.rename("foo")
w2.rename("bar")
only works after a 
w1, w2 = w.split()
command, but not after the split(w).

I would indeed be helpful to apply names to the components using the "name" option of the function in the mixed space.

Colin, I just didn't like the names function_8 etc that Paraview shows if you output multiple fields.

Best,

Anna.

 Dr Anna Kalogirou
 Research Fellow
 School of Mathematics
 University of Leeds

 http://www1.maths.leeds.ac.uk/~matak/
On 14/06/16 14:04, Lawrence Mitchell wrote:

On 14/06/16 14:00, Anna Kalogirou wrote:

Dear all,

How can I name the components of a function in a mixed function space, 
so that I can then easily visualize the results based on their names?

For example, say that I have

V = FunctionSpace(mesh, "CG", 1)
W = V*V

w = Function(W)
w1, w2 = split(w)

w1.rename("foo")
w2.rename("bar")

If you don't do this, we give you names like:

w_name[cmpt-0], c_name[cmpt-1] which is not very helpful.

When you first make a function you can do:

w = Function(W, name="some_name")

we could extend the API to allow you to pass a list of names that
apply to the components.  This would be easy to do if you'd like to try.


output_file = File('results.pvd')
output_file.write(w1, w2, time=t)

I would like to give names to w1 and w2.

Lawrence




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