Alex, have a look at step-1 <https://www.dealii.org/8.5.0/doxygen/deal.II/step_1.html#Results>. The relevant piece of code there looks like
Triangulation<2>::active_cell_iterator <https://www.dealii.org/8.5.0/doxygen/deal.II/classTriaActiveIterator.html> cell = triangulation.begin_active <https://www.dealii.org/8.5.0/doxygen/deal.II/classTriangulation.html#abef8795e729458954fd7301214012665> (); Triangulation<2>::active_cell_iterator <https://www.dealii.org/8.5.0/doxygen/deal.II/classTriaActiveIterator.html> endc = triangulation.end <https://www.dealii.org/8.5.0/doxygen/deal.II/classTriangulation.html#a55aebb671467ea1367153f81463855ca> (); for (; cell!=endc; ++cell) { for (unsigned int v=0; v < GeometryInfo<2>::vertices_per_cell; ++v) { const double distance_from_center = center.distance <https://www.dealii.org/8.5.0/doxygen/deal.II/classPoint.html#a7723498de9ec90785b058a3f3c6712d2> (cell->vertex(v)); if (std::fabs(distance_from_center - inner_radius) < 1e-10) { cell->set_refine_flag (); break; } } } triangulation.execute_coarsening_and_refinement <https://www.dealii.org/8.5.0/doxygen/deal.II/classTriangulation.html#ac8b4fbb207303ec7f5ef758821ecd8cb> (); For your purpose, it should be sufficient to check for cell->at_boundary(). Best, Daniel -- 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.
