Provide test for higher order VTU output

diff --git a/tests/data_out/data_out_base_vtu_04.cc b/tests/data_out/data_out_base_vtu_04.cc
new file mode 100644 (file)
index 0000000..39fadd9
--- /dev/null
+++ b/tests/data_out/data_out_base_vtu_04.cc
@@ -0,0 +1,73 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 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.
+//
+// ---------------------------------------------------------------------
+
+// Test high-order Lagrange VTU output on a 2D shell
+
+#include <deal.II/base/function_lib.h>
+
+#include <deal.II/dofs/dof_handler.h>
+
+#include <deal.II/fe/fe_q.h>
+#include <deal.II/fe/mapping_q_generic.h>
+
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/tria.h>
+
+#include <deal.II/numerics/data_out.h>
+#include <deal.II/numerics/vector_tools.h>
+
+#include <string>
+
+#include "../tests.h"
+
+template <int dim>
+void
+check(std::ostream &log, unsigned cell_order)
+{
+  Triangulation<dim> triangulation;
+  GridGenerator::hyper_shell(triangulation, Point<dim>(), 0.5, 1, 6);
+  triangulation.refine_global(1);
+
+  FE_Q<dim>       fe(cell_order);
+  DoFHandler<dim> dof_handler(triangulation);
+  dof_handler.distribute_dofs(fe);
+
+  Vector<double>       vec(dof_handler.n_dofs());
+  MappingQGeneric<dim> mapping(cell_order);
+
+  VectorTools::interpolate(mapping,
+                           dof_handler,
+                           Functions::SquareFunction<dim>(),
+                           vec);
+
+  DataOutBase::VtkFlags flags;
+  flags.write_higher_order_cells = true;
+
+  DataOut<dim> data_out;
+  data_out.set_flags(flags);
+  data_out.attach_dof_handler(dof_handler);
+  data_out.add_data_vector(vec, "square_function");
+  data_out.build_patches(mapping, cell_order, DataOut<dim>::curved_inner_cells);
+  data_out.write_vtu(log);
+}
+
+int
+main()
+{
+  initlog();
+
+  unsigned cell_order = 3;
+  check<2>(deallog.get_file_stream(), cell_order);
+}

diff --git a/tests/data_out/data_out_base_vtu_04.with_zlib=off.output b/tests/data_out/data_out_base_vtu_04.with_zlib=off.output
new file mode 100644 (file)
index 0000000..b7acb8a
--- /dev/null
+++ b/tests/data_out/data_out_base_vtu_04.with_zlib=off.output
@@ -0,0 +1,439 @@
+
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+  </PointData>
+ </Piece>
+ </UnstructuredGrid>
+</VTKFile>

diff --git a/tests/data_out/data_out_base_vtu_04.with_zlib=on.output b/tests/data_out/data_out_base_vtu_04.with_zlib=on.output
new file mode 100644 (file)
index 0000000..5f5f6fd
--- /dev/null
+++ b/tests/data_out/data_out_base_vtu_04.with_zlib=on.output
@@ -0,0 +1,33 @@
+
+<?xml version="1.0" ?> 
+<!-- 
+# vtk DataFile Version 3.0
+#This file was generated 
+-->
+<VTKFile type="UnstructuredGrid" version="0.1" compressor="vtkZLibDataCompressor" byte_order="LittleEndian">
+<UnstructuredGrid>
+<Piece NumberOfPoints="384" NumberOfCells="24" >
+  <Points>
+    <DataArray type="Float32" NumberOfComponents="3" format="binary">
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+    </DataArray>
+  </Points>
+
+  <Cells>
+    <DataArray type="Int32" Name="connectivity" format="binary">
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+    </DataArray>
+    <DataArray type="Int32" Name="offsets" format="binary">
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+    </DataArray>
+    <DataArray type="UInt8" Name="types" format="binary">
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+    </DataArray>
+  </Cells>
+  <PointData Scalars="scalars">
+    <DataArray type="Float32" Name="square_function" format="binary">
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+  </PointData>
+ </Piece>
+ </UnstructuredGrid>
+</VTKFile>

diff --git a/tests/data_out/data_out_base_vtu_05.cc b/tests/data_out/data_out_base_vtu_05.cc
new file mode 100644 (file)
index 0000000..f33f461
--- /dev/null
+++ b/tests/data_out/data_out_base_vtu_05.cc
@@ -0,0 +1,72 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 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.
+//
+// ---------------------------------------------------------------------
+
+// Test high-order Lagrange VTU output on a 3D shell
+
+#include <deal.II/base/function_lib.h>
+
+#include <deal.II/dofs/dof_handler.h>
+
+#include <deal.II/fe/fe_q.h>
+#include <deal.II/fe/mapping_q_generic.h>
+
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/tria.h>
+
+#include <deal.II/numerics/data_out.h>
+#include <deal.II/numerics/vector_tools.h>
+
+#include <string>
+
+#include "../tests.h"
+
+template <int dim>
+void
+check(std::ostream &log, unsigned cell_order)
+{
+  Triangulation<dim> triangulation;
+  GridGenerator::hyper_shell(triangulation, Point<dim>(1, 0, 0), 0.5, 1, 6);
+
+  FE_Q<dim>       fe(cell_order);
+  DoFHandler<dim> dof_handler(triangulation);
+  dof_handler.distribute_dofs(fe);
+
+  Vector<double>       vec(dof_handler.n_dofs());
+  MappingQGeneric<dim> mapping(cell_order);
+
+  VectorTools::interpolate(mapping,
+                           dof_handler,
+                           Functions::SquareFunction<dim>(),
+                           vec);
+
+  DataOutBase::VtkFlags flags;
+  flags.write_higher_order_cells = true;
+
+  DataOut<dim> data_out;
+  data_out.set_flags(flags);
+  data_out.attach_dof_handler(dof_handler);
+  data_out.add_data_vector(vec, "square_function");
+  data_out.build_patches(mapping, cell_order, DataOut<dim>::curved_inner_cells);
+  data_out.write_vtu(log);
+}
+
+int
+main()
+{
+  initlog();
+
+  unsigned cell_order = 3;
+  check<3>(deallog.get_file_stream(), cell_order);
+}

diff --git a/tests/data_out/data_out_base_vtu_05.with_zlib=off.output b/tests/data_out/data_out_base_vtu_05.with_zlib=off.output
new file mode 100644 (file)
index 0000000..0829430
--- /dev/null
+++ b/tests/data_out/data_out_base_vtu_05.with_zlib=off.output
@@ -0,0 +1,421 @@
+
+<?xml version="1.0" ?> 
+<!-- 
+# vtk DataFile Version 3.0
+#This file was generated 
+-->
+<VTKFile type="UnstructuredGrid" version="0.1" byte_order="LittleEndian">
+<UnstructuredGrid>
+<Piece NumberOfPoints="384" NumberOfCells="6" >
+  <Points>
+    <DataArray type="Float32" NumberOfComponents="3" format="ascii">
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diff --git a/tests/data_out/data_out_base_vtu_05.with_zlib=on.output b/tests/data_out/data_out_base_vtu_05.with_zlib=on.output
new file mode 100644 (file)
index 0000000..24f43b7
--- /dev/null
+++ b/tests/data_out/data_out_base_vtu_05.with_zlib=on.output
@@ -0,0 +1,33 @@
+
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