Hello all, I have a question about FEValues<dim> object that we use in the computation of element stiffness and other places.
If I declare fe_values object and get then move the mesh and then try to call fe_values.get_function_gradients() will this give me gradients on the deformed mesh or the mesh that was chosen to begin with ? (Code structure below) FEValues<dim> fe_values (fe, quadrature_formula, update_values <https://dealii.org/8.4.1/doxygen/deal.II/group__feaccess.html#ggaa94b67d2fdcc390690c523f28019e52fa4057ca2f127aa619c65886a9d3ad4aea> | update_gradients <https://dealii.org/8.4.1/doxygen/deal.II/group__feaccess.html#ggaa94b67d2fdcc390690c523f28019e52facbcc430975fa6af05f75ca786dc6fe20> | update_quadrature_points <https://dealii.org/8.4.1/doxygen/deal.II/group__feaccess.html#ggaa94b67d2fdcc390690c523f28019e52fad5c9ff886b9615349a5d04a6c782df4a> | update_JxW_values <https://dealii.org/8.4.1/doxygen/deal.II/group__feaccess.html#ggaa94b67d2fdcc390690c523f28019e52fa714204722e9eeb43aadbd0d5ddc48c85> ); // do some stuff // move mesh like step 17, adding displacements to cell->vertex(i) fe_values.get_function_gradients(); If it gives gradients on the initial mesh, then how does it know those coordinates once you change the coordinates of the vertices of the triangulation ? -- 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]. For more options, visit https://groups.google.com/d/optout.
