Hey all,
I am trying to solve a level set equation with DG. When I use degree=1,
everything is ok, but when I change it to degree=0, it cannot output the
results, and says:
An error occurred in line <957> of file
in function
void dealii::DataOut_DoFData::add_data_vector(const VectorType&
Daniel,
In that code, I had a half circle in the right part of the coordinate axis.
By writing v(1) <=0, I wanted to choose the part with negative y components
from the geometry, however, The attached file has been obtained. I really
do not know how I should modify the source you sent to me beca
Anup,
if you know which node you want to constrain, you just have to find the
corresponding degree of freedom and add a constraint to the
ConstraintMatrix.
For finding this DoF, DoFTools::map_dofs_to_support_points[1] might be
useful. The alternative is to loop through all the cells and ask eac
Benhour,
It would be helpful if you tell us what the problem with the newly created
problem is.
Looking at the implementation of GridGenerator::half_hyper_ball [1],
you can observe that there are cells which have vertices both with positive
and negative
y-components. This will likely lead to und
