Re: [deal.II] How to efficiently add / remove cells (maybe with hp::DoFHandler)

2019-09-12 Thread Mathias Anselmann
Dear Professor Bangerth, thank you very much for your reply and please excuse my late answer. Unfortunately I didn't have the time the last couple of days to work on this problem or further investigate it. I have edited the pack_callback() function in solution_transfer.cc a little bit myself

Re: [deal.II] How to efficiently add / remove cells (maybe with hp::DoFHandler)

2019-08-19 Thread Wolfgang Bangerth
Mathias, > thanks again for your reply, I will start answering your questions and > give you more insight into what I try to do at the moment: > > That's exactly the question you have to answer first. What do you > *want* to > happen on these cells? If you know what you want to

Re: [deal.II] How to efficiently add / remove cells (maybe with hp::DoFHandler)

2019-08-05 Thread Mathias Anselmann
Dear Professor Bangerth, thanks again for your reply, I will start answering your questions and give you more insight into what I try to do at the moment: That's exactly the question you have to answer first. What do you *want* to > happen on these cells? If you know what you want to happen,

Re: [deal.II] How to efficiently add / remove cells (maybe with hp::DoFHandler)

2019-08-04 Thread Wolfgang Bangerth
> Oh yes, I actually did not assume my current way of doing things to work. > After the static case was running, it was just a one liner (calling > set_fe_indices() again in each timestep) which was a really naive way of > doing > things. > The problem at the moment is, that I just change the

Re: [deal.II] How to efficiently add / remove cells (maybe with hp::DoFHandler)

2019-07-30 Thread Mathias Anselmann
Dear Professor Bangerth, thanks for your reply, I hope I can answer your questions: I can see that this doesn't look right. But do you understand *why* > things go wrong? I can't tell from the pictures, but I've often found > that when trying to solve a problem for which I know that there is a

Re: [deal.II] How to efficiently add / remove cells (maybe with hp::DoFHandler)

2019-07-30 Thread Wolfgang Bangerth
Mathias, > I want to simulate how a solid moves in a fluid with a fixed mesh using > Cut-FEM. I implemented this using the hp-framework and set all the DoFs > where just the solid is to FE_Nothing. You can see this in (attached) > two pictures: overlay_0 shows a solid circle lying in a