Hello. > In the current implementation of NonMatching::MeshClassifier, cells that > intersect the interface (given by a level set function) in only a single > vertex are classified as "intersected".
Just to be clear: Are we talking about the situation where the zero contour goes exactly through a single cell corner? Given the implementation, I had expected that such a cell would be classified as inside/outside. Best, Simon On Tue, Mar 31, 2026 at 2:53 PM Anne-Kathrin Wenske < [email protected]> wrote: > Dear all > > I am using a cut finite element method to solve fluid-structure > interaction problems similarly to step-85. > > In the current implementation of NonMatching::MeshClassifier, cells that > intersect the interface (given by a level set function) in only a single > vertex are classified as "intersected". > > For my implementation I need those cells to be classified as strictly > "inside" or "outside" and modified the function location_from_dof_signs > accordingly. However, I am wondering whether there might be a case where > one wants those cells to actually count as "intersected" and would like > your opinion on this. Should those single point intersections count as > "intersected" or is "inside"/"outside" more reasonable? > > Best > > Anne > > -- > The deal.II project is located at http://www.dealii.org/ > For mailing list/forum options, see > https://groups.google.com/d/forum/dealii?hl=en > --- > You received this message because you are subscribed to the Google Groups > "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/dealii/8dac5b4b-a211-431c-9122-32719d6bca58%40ifam.uni-hannover.de > . > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/dealii/CAMhmiLi0wV4Xdm8q8hCysU6mOZ1sycXR4qbjnswiZvH5QMxzxw%40mail.gmail.com.
