Markus,
Thank you! I was able to update using svn and now everything works
perfectly.
Best,
-J
On 04/15/2012 03:17 AM, Markus Bürg wrote:
Hello Justin,
I have checked in a fix for this bug in the current svn version.
Best Regards,
Markus
On 15.04.2012 00:17, Justin Droba wrote:
Hi,
I am attempting to calculate the curl of my computed solution, but
have been rather unsuccessful so far. I am attempting to use the
get_function_curls method in the FEValuesViews class to do so, but it
will not work for me. It compiles, but when I run it, I get an error
message:
408: undefined reference to `void dealii::FEValuesViews::Vector<2,
2>::get_function_curls<dealii::Vector<double>
>(dealii::Vector<double> const&, std::vector<dealii::Tensor<1, 1,
double>, std::allocator<dealii::Tensor<1, 1, double> > >&) const'
The segments of code that generate this error are:
std::vector<Tensor<1,1> > fe_function_curls(n_q_points, Tensor<1,1>());
...
[408] fe_views.get_function_curls(solution, fe_function_curls);
solution is the Vector<double> containing the coefficients of the
computed solution. I am using dim = 2, so Tensor<1,1> should be the
correct curl type.
What I really don't understand is that other methods in the
FEValuesViews class work just fine--for instance, I can call
get_function_divergences and get_function_gradients (with a
Tensor<2,dim> vector as the input, so this i the FEValuesViews
method, not the FEValues one). Can anyone provide some insight on
this problem?
I have tried to compute the curl from the get_function_gradients
method, but because I'm not using first-order elements, I get a bogus
result. I can't figure out how to associate the entries from
solution (coefficients of global elements) to the local shape
functions. If someone could tell me that, I could compute the curls
from the shape functions (as I do when I assemble the system matrix).
Thank you!
Best,
-J
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Justin Droba
Office: A111 Wells Hall
Ph.D. Candidate in Applied Mathematics
Michigan State University
Department of Mathematics
East Lansing, MI 48824
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