]> https://gitweb.dealii.org/ - dealii.git/commitdiff
Added check on Jacobians on faces for FlatManifold.
authorLuca Heltai <luca.heltai@sissa.it>
Mon, 28 Mar 2016 09:31:48 +0000 (11:31 +0200)
committerLuca Heltai <luca.heltai@sissa.it>
Wed, 6 Apr 2016 11:00:14 +0000 (13:00 +0200)
tests/fe/mapping_manifold_05.cc [new file with mode: 0644]
tests/fe/mapping_manifold_05.output [new file with mode: 0644]

diff --git a/tests/fe/mapping_manifold_05.cc b/tests/fe/mapping_manifold_05.cc
new file mode 100644 (file)
index 0000000..923e20e
--- /dev/null
@@ -0,0 +1,114 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2016 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 at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+// Check that the Jacobian obtained through MappingManifold and
+// MappingQ1 are the same on a FlatManifold, with non-trivial cells,
+// on the faces
+
+
+#include "../tests.h"
+
+#include <deal.II/base/utilities.h>
+#include <deal.II/grid/tria.h>
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/manifold_lib.h>
+#include <deal.II/dofs/dof_handler.h>
+#include <deal.II/fe/mapping_q_generic.h>
+#include <deal.II/fe/mapping_manifold.h>
+#include <deal.II/fe/fe_q.h>
+#include <deal.II/fe/fe_values.h>
+
+template<int dim, int spacedim>
+void test()
+{
+  deallog << "dim=" << dim << ", spacedim=" << spacedim << std::endl;
+
+  Triangulation<dim, spacedim>   triangulation;
+
+  Point<spacedim> center;
+  for (unsigned int i=0; i<spacedim; ++i)
+    center[i] = 5+i;
+
+  const double inner_radius = 0.5,
+               outer_radius = 1.0;
+  GridGenerator::hyper_shell (triangulation,
+                              center, inner_radius, outer_radius);
+
+  const QGauss<spacedim-1> quad(3);
+
+  FE_Q<dim,spacedim> fe(1);
+
+  DoFHandler<dim,spacedim> dof(triangulation);
+  dof.distribute_dofs(fe);
+
+  MappingManifold<dim,spacedim> mapping_manifold;
+  MappingQGeneric<dim,spacedim> mapping_q(1);
+
+  FEFaceValues<dim,spacedim> fe_values_mapping (mapping_manifold,
+                                               fe, quad,
+                                               update_jacobians);
+
+  FEFaceValues<dim,spacedim> fe_values_q (mapping_q,
+                                         fe, quad,
+                                         update_jacobians);
+  
+  typename Triangulation<dim,spacedim>::active_cell_iterator cell= triangulation.begin_active();
+  for(unsigned int f=0; f<GeometryInfo<dim>::faces_per_cell; ++f) {
+    fe_values_mapping.reinit(cell,f);
+    fe_values_q.reinit(cell,f);
+    std::vector<DerivativeForm<1,dim,spacedim> > jac_from_mapping_manifold =
+      fe_values_mapping.get_jacobians();
+
+    std::vector<DerivativeForm<1,dim,spacedim> > jac_from_mapping_q =
+      fe_values_q.get_jacobians();
+    
+    AssertThrow(jac_from_mapping_q.size() == jac_from_mapping_manifold.size(), ExcInternalError());
+    
+    for (unsigned int q=0; q<jac_from_mapping_q.size(); ++q)
+      {
+       double dist = 0;
+       for (unsigned int d=0; d<spacedim; ++d)
+         dist += (jac_from_mapping_manifold[q][d] - jac_from_mapping_q[q][d]).norm();
+       if (dist > 1e-10)
+         {
+           deallog << "Jacobian from mapping manifold at point "<< q << std::endl;
+           for (unsigned int d=0; d<spacedim; ++d)
+             deallog << jac_from_mapping_manifold[q][d] << std::endl;
+           
+           deallog << "Jacobian from mapping q at point "<< q << std::endl;
+           for (unsigned int d=0; d<spacedim; ++d)
+             deallog << jac_from_mapping_q[q][d] << std::endl;
+         }
+      }
+    
+    deallog << "OK" << std::endl;
+  }
+}
+
+
+int
+main()
+{
+  initlog();
+
+  test<2,2>();
+  test<3,3>();
+
+  return 0;
+}
+
+
+
diff --git a/tests/fe/mapping_manifold_05.output b/tests/fe/mapping_manifold_05.output
new file mode 100644 (file)
index 0000000..7a5a965
--- /dev/null
@@ -0,0 +1,13 @@
+
+DEAL::dim=2, spacedim=2
+DEAL::OK
+DEAL::OK
+DEAL::OK
+DEAL::OK
+DEAL::dim=3, spacedim=3
+DEAL::OK
+DEAL::OK
+DEAL::OK
+DEAL::OK
+DEAL::OK
+DEAL::OK

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