If you are just interested in a cylinder with more than a single layer, it might be easier to make k copies of the cylinder, shift them, and use merge_triangulations() to combine them into a single mesh.
On Tue, Sep 19, 2017 at 5:00 AM, luca.heltai <luca.hel...@gmail.com> wrote: > Dear Lucas, > > you could use GridTools::remove_anisotropy > > Best, > Luca. > >> On 18 Sep 2017, at 16:29, Lucas Campos <rmk...@gmail.com> wrote: >> >> Dear Bruno, >> >> You will find attached the resulting grids. While I originally expected to >> find new divisions only along the x-direction, your previous answer tells me >> it actually cuts in some local coordinate (whatever that might be). In this >> case, what is the best way to refine the cylinder in a single direction? I >> tried adding an if(cell->boundary_id() == 0) before setting the flag, but it >> did not really help. The mesh is still being refined in all directions. >> >> I ask this because I plan to do some transformations on this cylinder, to >> turn it into a coil. In this case, the final result is much better if there >> are enough cuts in the x-axis. >> >> Bests >> >> On Monday, 18 September 2017 14:44:40 UTC+2, Bruno Turcksin wrote: >> Lucas, >> >> On Monday, September 18, 2017 at 3:50:20 AM UTC-4, Lucas Campos wrote: >> I am trying to refine a cylinder in the x direction only, but it seems that >> when I use >> >> > cell->set_refine_flag(RefinementCase<3>::cut_x); >> >> the whole cylinder is refined. Indeed, if I run the above line for every >> active cell *once* I would expect the number of cells to double. However, >> they quintuple! >> It looks good but how does the mesh look like? Here, you can see that cut_x >> is in the local coordinate system not the global one. So I would not be >> surprise if the mesh doesn't look like you think it should. Also if you do >> more than one refinement you should also use >> prepare_coarsening_and_refinement() before you refine your mesh. >> >> Best, >> >> Bruno >> >> -- >> The deal.II project is located at >> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.dealii.org_&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=R5lvg9JC99XvuTgScgbY_QFS80R7PEA2q0EPwDy7VQw&m=Mtc_8RpRiOkRLKkBxN-XmY8kb7kcarfzigGzEoOBiPM&s=tE77erYniO6ZJQX0HXjseStuQ1pFyTwrB95kiqc4TyM&e= >> For mailing list/forum options, see >> https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_forum_dealii-3Fhl-3Den&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=R5lvg9JC99XvuTgScgbY_QFS80R7PEA2q0EPwDy7VQw&m=Mtc_8RpRiOkRLKkBxN-XmY8kb7kcarfzigGzEoOBiPM&s=3YruSttO5wH-jhuY8FkmIFxomIEok3SQ6VQJiVGSpHU&e= >> --- >> 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 dealii+unsubscr...@googlegroups.com. >> For more options, visit >> https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_optout&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=R5lvg9JC99XvuTgScgbY_QFS80R7PEA2q0EPwDy7VQw&m=Mtc_8RpRiOkRLKkBxN-XmY8kb7kcarfzigGzEoOBiPM&s=xt3MRzQwT7XF4s7ezHiQC0V6qwZtrYvic1H2vsymFZI&e= >> . >> <grid_unrefined.png><grid_refined.png> > > -- > The deal.II project is located at > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.dealii.org_&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=R5lvg9JC99XvuTgScgbY_QFS80R7PEA2q0EPwDy7VQw&m=Mtc_8RpRiOkRLKkBxN-XmY8kb7kcarfzigGzEoOBiPM&s=tE77erYniO6ZJQX0HXjseStuQ1pFyTwrB95kiqc4TyM&e= > For mailing list/forum options, see > https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_forum_dealii-3Fhl-3Den&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=R5lvg9JC99XvuTgScgbY_QFS80R7PEA2q0EPwDy7VQw&m=Mtc_8RpRiOkRLKkBxN-XmY8kb7kcarfzigGzEoOBiPM&s=3YruSttO5wH-jhuY8FkmIFxomIEok3SQ6VQJiVGSpHU&e= > --- > 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 dealii+unsubscr...@googlegroups.com. > For more options, visit > https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_optout&d=DwIFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=R5lvg9JC99XvuTgScgbY_QFS80R7PEA2q0EPwDy7VQw&m=Mtc_8RpRiOkRLKkBxN-XmY8kb7kcarfzigGzEoOBiPM&s=xt3MRzQwT7XF4s7ezHiQC0V6qwZtrYvic1H2vsymFZI&e= > . -- Timo Heister http://www.math.clemson.edu/~heister/ -- 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 dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
