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Add tests for complex-valued vector fields.
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| // --------------------------------------------------------------------- | ||
| // | ||
| // Copyright (C) 2017 - 2018 by the deal.II authors | ||
| // | ||
| // This file is part of the deal.II library. | ||
| // | ||
| // The deal.II library is free software; you can use it, redistribute | ||
| // it, and/or modify it under the terms of the GNU Lesser General | ||
| // Public License as published by the Free Software Foundation; either | ||
| // version 2.1 of the License, or (at your option) any later version. | ||
| // The full text of the license can be found in the file LICENSE.md at | ||
| // the top level directory of deal.II. | ||
| // | ||
| // --------------------------------------------------------------------- | ||
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| // Check DataOut for complex vectors. The finite element used here is | ||
| // vector-valued, and we want to output both real and imaginary parts | ||
| // of the vector as separate real-valued vector fields. For this, | ||
| // DataOut needed to learn that it needs to duplicate not only the | ||
| // vector, but keep the dim real parts together, the dim complex parts | ||
| // together, and describe everything necessary to DataOutBase. | ||
| // | ||
| // This test checks the output in .gnuplot format. | ||
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| #include <deal.II/base/logstream.h> | ||
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| #include <deal.II/dofs/dof_accessor.h> | ||
| #include <deal.II/dofs/dof_handler.h> | ||
| #include <deal.II/dofs/dof_tools.h> | ||
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| #include <deal.II/fe/fe_q.h> | ||
| #include <deal.II/fe/fe_system.h> | ||
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| #include <deal.II/grid/grid_generator.h> | ||
| #include <deal.II/grid/tria.h> | ||
| #include <deal.II/grid/tria_iterator.h> | ||
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| #include <deal.II/lac/block_vector.h> | ||
| #include <deal.II/lac/vector.h> | ||
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| #include <deal.II/numerics/data_out.h> | ||
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| #include <fstream> | ||
| #include <iomanip> | ||
| #include <string> | ||
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| #include "../tests.h" | ||
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| template <int dim> | ||
| void | ||
| check() | ||
| { | ||
| Triangulation<dim> tria; | ||
| GridGenerator::hyper_cube(tria, 0., 1.); | ||
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| // Create a vector-valued finite element | ||
| FESystem<dim> fe(FE_Q<dim>(1), dim); | ||
| DoFHandler<dim> dof_handler(tria); | ||
| dof_handler.distribute_dofs(fe); | ||
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| // Pick a special solution function: constant in space, but one | ||
| // where the individual vector components have the form c-c*i | ||
| // (counting components from 1, for uniqueness of components). This | ||
| // allows us to check that the ordering of components in the output | ||
| // file is correct. | ||
| // | ||
| // For example, in 2d, the ordering of output components should then | ||
| // be | ||
| // [1 2] [-1 -2] | ||
| // where [...] indicates which components jointly form a vector. | ||
| Vector<std::complex<double>> v(dof_handler.n_dofs()); | ||
| for (unsigned int i = 0; i < v.size(); ++i) | ||
| v(i) = std::complex<double>(1, -1) * double(i % fe.n_components() + 1); | ||
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| DataOut<dim> data_out; | ||
| data_out.attach_dof_handler(dof_handler); | ||
| data_out.add_data_vector( | ||
| v, | ||
| std::vector<std::string>(dim, "vector_field"), | ||
| DataOut<dim>::type_dof_data, | ||
| std::vector<DataComponentInterpretation::DataComponentInterpretation>( | ||
| dim, DataComponentInterpretation::component_is_part_of_vector)); | ||
| data_out.build_patches(); | ||
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| data_out.write_gnuplot(deallog.get_file_stream()); | ||
| } | ||
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| int | ||
| main() | ||
| { | ||
| initlog(); | ||
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| try | ||
| { | ||
| check<1>(); | ||
| check<2>(); | ||
| check<3>(); | ||
| } | ||
| catch (std::exception &exc) | ||
| { | ||
| deallog << std::endl | ||
| << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| deallog << "Exception on processing: " << std::endl | ||
| << exc.what() << std::endl | ||
| << "Aborting!" << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| return 1; | ||
| } | ||
| catch (...) | ||
| { | ||
| deallog << std::endl | ||
| << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| deallog << "Unknown exception!" << std::endl | ||
| << "Aborting!" << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| return 1; | ||
| } | ||
| } |
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Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,81 @@ | ||
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| # This file was generated by the deal.II library. | ||
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| # | ||
| # For a description of the GNUPLOT format see the GNUPLOT manual. | ||
| # | ||
| # <x> <vector_field_re> <vector_field_im> | ||
| 0.00000 1.00000 -1.00000 | ||
| 1.00000 1.00000 -1.00000 | ||
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| # This file was generated by the deal.II library. | ||
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| # | ||
| # For a description of the GNUPLOT format see the GNUPLOT manual. | ||
| # | ||
| # <x> <y> <vector_field_re> <vector_field_re> <vector_field_im> <vector_field_im> | ||
| 0.00000 0.00000 1.00000 2.00000 -1.00000 -2.00000 | ||
| 1.00000 0.00000 1.00000 2.00000 -1.00000 -2.00000 | ||
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| 0.00000 1.00000 1.00000 2.00000 -1.00000 -2.00000 | ||
| 1.00000 1.00000 1.00000 2.00000 -1.00000 -2.00000 | ||
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| # This file was generated by the deal.II library. | ||
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| # | ||
| # For a description of the GNUPLOT format see the GNUPLOT manual. | ||
| # | ||
| # <x> <y> <z> <vector_field_re> <vector_field_re> <vector_field_re> <vector_field_im> <vector_field_im> <vector_field_im> | ||
| 0.00000 0.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 0.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 0.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 0.00000 1.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 0.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 0.00000 0.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 1.00000 0.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 1.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 1.00000 0.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 0.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 1.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 1.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 1.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 0.00000 1.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 1.00000 1.00000 0.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 1.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 0.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 0.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 0.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 0.00000 1.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 1.00000 0.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 1.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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| 0.00000 1.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
| 1.00000 1.00000 1.00000 1.00000 2.00000 3.00000 -1.00000 -2.00000 -3.00000 | ||
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // --------------------------------------------------------------------- | ||
| // | ||
| // Copyright (C) 2017 - 2018 by the deal.II authors | ||
| // | ||
| // This file is part of the deal.II library. | ||
| // | ||
| // The deal.II library is free software; you can use it, redistribute | ||
| // it, and/or modify it under the terms of the GNU Lesser General | ||
| // Public License as published by the Free Software Foundation; either | ||
| // version 2.1 of the License, or (at your option) any later version. | ||
| // The full text of the license can be found in the file LICENSE.md at | ||
| // the top level directory of deal.II. | ||
| // | ||
| // --------------------------------------------------------------------- | ||
|
|
||
|
|
||
| // Check DataOut for complex vectors. The finite element used here is | ||
| // vector-valued, and we want to output both real and imaginary parts | ||
| // of the vector as separate real-valued vector fields. For this, | ||
| // DataOut needed to learn that it needs to duplicate not only the | ||
| // vector, but keep the dim real parts together, the dim complex parts | ||
| // together, and describe everything necessary to DataOutBase. | ||
| // | ||
| // This test checks the output in .vtk format. | ||
|
|
||
| #include <deal.II/base/logstream.h> | ||
|
|
||
| #include <deal.II/dofs/dof_accessor.h> | ||
| #include <deal.II/dofs/dof_handler.h> | ||
| #include <deal.II/dofs/dof_tools.h> | ||
|
|
||
| #include <deal.II/fe/fe_q.h> | ||
| #include <deal.II/fe/fe_system.h> | ||
|
|
||
| #include <deal.II/grid/grid_generator.h> | ||
| #include <deal.II/grid/tria.h> | ||
| #include <deal.II/grid/tria_iterator.h> | ||
|
|
||
| #include <deal.II/lac/block_vector.h> | ||
| #include <deal.II/lac/vector.h> | ||
|
|
||
| #include <deal.II/numerics/data_out.h> | ||
|
|
||
| #include <fstream> | ||
| #include <iomanip> | ||
| #include <string> | ||
|
|
||
| #include "../tests.h" | ||
|
|
||
|
|
||
|
|
||
| template <int dim> | ||
| void | ||
| check() | ||
| { | ||
| Triangulation<dim> tria; | ||
| GridGenerator::hyper_cube(tria, 0., 1.); | ||
|
|
||
| // Create a vector-valued finite element | ||
| FESystem<dim> fe(FE_Q<dim>(1), dim); | ||
| DoFHandler<dim> dof_handler(tria); | ||
| dof_handler.distribute_dofs(fe); | ||
|
|
||
| // Pick a special solution function: constant in space, but one | ||
| // where the individual vector components have the form c-c*i | ||
| // (counting components from 1, for uniqueness of components). This | ||
| // allows us to check that the ordering of components in the output | ||
| // file is correct. | ||
| // | ||
| // For example, in 2d, the ordering of output components should then | ||
| // be | ||
| // [1 2] [-1 -2] | ||
| // where [...] indicates which components jointly form a vector. | ||
| Vector<std::complex<double>> v(dof_handler.n_dofs()); | ||
| for (unsigned int i = 0; i < v.size(); ++i) | ||
| v(i) = std::complex<double>(1, -1) * double(i % fe.n_components() + 1); | ||
|
|
||
| DataOut<dim> data_out; | ||
| data_out.attach_dof_handler(dof_handler); | ||
| data_out.add_data_vector( | ||
| v, | ||
| std::vector<std::string>(dim, "vector_field"), | ||
| DataOut<dim>::type_dof_data, | ||
| std::vector<DataComponentInterpretation::DataComponentInterpretation>( | ||
| dim, DataComponentInterpretation::component_is_part_of_vector)); | ||
| data_out.build_patches(); | ||
|
|
||
| data_out.write_vtk(deallog.get_file_stream()); | ||
| } | ||
|
|
||
|
|
||
|
|
||
| int | ||
| main() | ||
| { | ||
| initlog(); | ||
|
|
||
| try | ||
| { | ||
| check<1>(); | ||
| check<2>(); | ||
| check<3>(); | ||
| } | ||
| catch (std::exception &exc) | ||
| { | ||
| deallog << std::endl | ||
| << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| deallog << "Exception on processing: " << std::endl | ||
| << exc.what() << std::endl | ||
| << "Aborting!" << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| return 1; | ||
| } | ||
| catch (...) | ||
| { | ||
| deallog << std::endl | ||
| << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| deallog << "Unknown exception!" << std::endl | ||
| << "Aborting!" << std::endl | ||
| << "----------------------------------------------------" | ||
| << std::endl; | ||
| return 1; | ||
| } | ||
| } |
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