On 12/14/21 08:32, Judy Lee wrote:
I tried *DoFTools::map_dofs_to_support_points<dim>(mapping, dof_handler,
support_points)*, to obtain coordinates on *local_dof_indices*, not
running thru yet.
My .cc file is attached with reference to step-3 in 2D, in which I added
Lines 137-138 with reference to Lines 126-127, as well as by looking at
step-2 introduction.
Error shows, " ’mapping’ was not declared in the scope". I added Line 62
that does not figure out the error, with adding Line 40.
If you do this, you get the following error message:
/home/fac/g/bangerth/p/deal.II/1/install/examples/step-3/step-3.cc:67:30:
error: no matching function for call to ‘dealii::MappingQ<2, 2>::MappingQ()’
, dof_handler(triangulation)
It tells you that you need to explicitly initialize the 'mapping'
variable in the constructor of the class, in the same way as you do for
the finite element.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
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