From 2f41dc3af2bd0bc5d02bf7d0e4f176d0a62c7cf2 Mon Sep 17 00:00:00 2001 From: Wolfgang Bangerth Date: Wed, 27 Oct 2021 21:16:03 -0600 Subject: [PATCH] Add a test. --- tests/simplex/data_out_write_gnuplot_01.cc | 145 ++++ .../simplex/data_out_write_gnuplot_01.output | 790 ++++++++++++++++++ 2 files changed, 935 insertions(+) create mode 100644 tests/simplex/data_out_write_gnuplot_01.cc create mode 100644 tests/simplex/data_out_write_gnuplot_01.output diff --git a/tests/simplex/data_out_write_gnuplot_01.cc b/tests/simplex/data_out_write_gnuplot_01.cc new file mode 100644 index 0000000000..431c531be2 --- /dev/null +++ b/tests/simplex/data_out_write_gnuplot_01.cc @@ -0,0 +1,145 @@ +// --------------------------------------------------------------------- +// +// Copyright (C) 2020 - 2021 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. +// +// --------------------------------------------------------------------- + + + +// Test DataOut::write_gnuplot() for simplex meshes. + +#include + +#include + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include "../tests.h" + +using namespace dealii; + +template +class RightHandSideFunction : public Function +{ +public: + RightHandSideFunction(const unsigned int n_components) + : Function(n_components) + {} + + virtual double + value(const Point &p, const unsigned int component = 0) const + { + return p[component % dim] * p[component % dim]; + } +}; + +template +void +test(const FiniteElement &fe, + const unsigned int n_components, + const bool do_high_order) +{ + Triangulation tria; + GridGenerator::subdivided_hyper_cube_with_simplices(tria, dim == 2 ? 4 : 2); + + DoFHandler dof_handler(tria); + + dof_handler.distribute_dofs(fe); + + Vector solution(dof_handler.n_dofs()); + + MappingFE mapping(FE_SimplexP(1)); + + AffineConstraints dummy; + dummy.close(); + + VectorTools::project(mapping, + dof_handler, + dummy, + QGaussSimplex(fe.tensor_degree() + 1), + RightHandSideFunction(n_components), + solution); + + + DataOut data_out; + + data_out.attach_dof_handler(dof_handler); + data_out.add_data_vector(solution, "solution"); + + + data_out.build_patches(mapping, 1); + +#if false + static unsigned int counter = 0; + std::ofstream output("test." + std::to_string(dim) + "." + + std::to_string(counter++) + ".gnuplot"); + data_out.write_gnuplot(output); +#else + data_out.write_gnuplot(deallog.get_file_stream()); +#endif +} + +int +main() +{ + initlog(); + + for (unsigned int i = 0; i < 2; ++i) + { + const bool do_high_order = (i == 1); + + if (do_high_order) + { + const unsigned int dim = 2; + test(FE_SimplexP(2) /*=degree*/, 1, do_high_order); + test(FESystem(FE_SimplexP(2 /*=degree*/), dim), + dim, + do_high_order); + test(FESystem(FE_SimplexP(2 /*=degree*/), + dim, + FE_SimplexP(1 /*=degree*/), + 1), + dim + 1, + do_high_order); + } + + if (false) + if (do_high_order == + false /*TODO: higher-order output not working for 3D*/) + { + const unsigned int dim = 3; + test(FE_SimplexP(2) /*=degree*/, 1, do_high_order); + test(FESystem(FE_SimplexP(2 /*=degree*/), dim), + dim, + do_high_order); + test(FESystem(FE_SimplexP(2 /*=degree*/), + dim, + FE_SimplexP(1 /*=degree*/), + 1), + dim + 1, + do_high_order); + } + } +} diff --git a/tests/simplex/data_out_write_gnuplot_01.output b/tests/simplex/data_out_write_gnuplot_01.output new file mode 100644 index 0000000000..fb4d5939d3 --- /dev/null +++ b/tests/simplex/data_out_write_gnuplot_01.output @@ -0,0 +1,790 @@ + +# This file was generated by the deal.II library. + + 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