Yes, it looked like not enough precision of numbers and thats why it quantisizing mesh to grid. I am using VTK and standard workflow from step-6:
DataOut<dim> data_out; data_out.attach_dof_handler(dof_handler); data_out.add_data_vector(solution, "solution"); data_out.build_patches(); std::ofstream output(file_name + ".vtk"); data_out.write_vtk(output); Best, Oleg On Tue, 30 Apr 2019 at 17:14, Wolfgang Bangerth <[email protected]> wrote: > On 4/30/19 9:06 AM, [email protected] wrote: > > Yes those "triangles" mesh are what I call "disordered mesh". By design, > > my mesh generator produces only quadrangular elements(with area nearly > > 1e-10), but after few refinments in deal.ii paraview shows those > > pictures: one refinment, two. three times and one with bigger view on > mesh) > > Oh, I wonder whether that's because you output the locations of vertices > only to a certain number of digits. Can you set the precision of the > stream you output the file to to a larger number of digits? > > What output format do you use? > > Best > W. > > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: [email protected] > www: http://www.math.colostate.edu/~bangerth/ > > -- > 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. > -- 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.
