On 10/19/2016 07:59 AM, Praveen C wrote:
Well, thinking about it, it seems that spacedim=3 is not relevant here.
I can do
constFE_DGQArbitraryNodes<dim,dim> fe1(QGauss<1>(fe.degree+1));
constFE_DGQArbitraryNodes<dim,dim> fe2(QGauss<1>(fe.degree));
FETools::get_back_interpolation_matrix(fe1, fe2, filter_matrix);
This should give me the same matrix as in the case dim=2, spacedim=3,
right ???
Correct. The interpolation matrices do not actually depend on the spaced
dimension.
The problem is that the function is only instantiated for spacedim==dim:
https://github.com/dealii/dealii/blob/master/source/fe/fe_tools.inst.in#L156
and line 138. Want to write a patch that instantiates the function for
all combinations of dim/spacedim? You may want to move it into the block
that starts at line 126 where there is already an example.
We'd take such a patch!
Best
Wolfgang
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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