Inheritance diagram for DistortTest:

[legend]

Public Member Functions
	LIBMESH_CPPUNIT_TEST_SUITE (DistortTest)
	The goal of this test is to make sure that boundary nodes are not restricted during distortion.

	CPPUNIT_TEST (testDistortQuad)

	CPPUNIT_TEST (testDistortHex)

	CPPUNIT_TEST_SUITE_END ()

void	setUp ()

void	tearDown ()

void	testDistortQuad ()

void	testDistortHex ()

Protected Member Functions
void	test_helper_2D (ElemType elem_type)

void	test_helper_3D (ElemType elem_type)

void	perturb_and_check (ReplicatedMesh &mesh)

Detailed Description

Definition at line 18 of file distort.C.

Member Function Documentation

◆ CPPUNIT_TEST() [1/2]

DistortTest::CPPUNIT_TEST ( testDistortHex )

◆ CPPUNIT_TEST() [2/2]

DistortTest::CPPUNIT_TEST ( testDistortQuad )

◆ CPPUNIT_TEST_SUITE_END()

DistortTest::CPPUNIT_TEST_SUITE_END ( )

◆ LIBMESH_CPPUNIT_TEST_SUITE()

DistortTest::LIBMESH_CPPUNIT_TEST_SUITE ( DistortTest )

The goal of this test is to make sure that boundary nodes are not restricted during distortion.

◆ perturb_and_check()

void DistortTest::perturb_and_check ( ReplicatedMesh & mesh )

inlineprotected

Definition at line 69 of file distort.C.

  {
    // Record node positions ahead of time to make sure the correct
    // ones are moved by distort.
    std::unordered_map<dof_id_type, Point> pts_before;
    for (const auto & node : mesh.node_ptr_range())
      pts_before[node->id()] = *node;
 
    std::unordered_set<dof_id_type> boundary_node_ids =
      MeshTools::find_boundary_nodes (mesh);
 
    MeshTools::Modification::distort(mesh,
                                     /*factor=*/0.1,
                                     /*perturb_boundary=*/false);
 
    // Make sure the boundary nodes are not perturbed, and the
    // other nodes are.
    for (const auto & node : mesh.node_ptr_range())
      {
        bool equal = node->absolute_fuzzy_equals(pts_before[node->id()]);
        CPPUNIT_ASSERT(boundary_node_ids.count(node->id()) ? equal : !equal);
      }
  }

References libMesh::MeshTools::Modification::distort(), libMesh::MeshTools::find_boundary_nodes(), and mesh.

Referenced by test_helper_2D(), and test_helper_3D().

◆ setUp()

void DistortTest::setUp ( )

inline

Definition at line 94 of file distort.C.

94{}

◆ tearDown()

void DistortTest::tearDown ( )

inline

Definition at line 95 of file distort.C.

95{}

◆ test_helper_2D()

void DistortTest::test_helper_2D ( ElemType elem_type )

inlineprotected

Definition at line 41 of file distort.C.

  {
    ReplicatedMesh mesh(*TestCommWorld, /*dim=*/2);
 
    MeshTools::Generation::build_square(mesh,
                                        /*nx=*/2, /*ny=*/2,
                                        /*xmin=*/0., /*xmax=*/1.,
                                        /*ymin=*/0., /*ymax=*/1.,
                                        elem_type);
 
    perturb_and_check(mesh);
  }

References libMesh::MeshTools::Generation::build_square(), mesh, perturb_and_check(), and TestCommWorld.

Referenced by testDistortQuad().

◆ test_helper_3D()

void DistortTest::test_helper_3D ( ElemType elem_type )

inlineprotected

Definition at line 55 of file distort.C.

  {
    ReplicatedMesh mesh(*TestCommWorld, /*dim=*/3);
 
    MeshTools::Generation::build_cube(mesh,
                                      /*nx=*/2, /*ny=*/2, /*nz=*/2,
                                      /*xmin=*/0., /*xmax=*/1.,
                                      /*ymin=*/0., /*ymax=*/1.,
                                      /*zmin=*/0., /*zmax=*/1.,
                                      elem_type);
    perturb_and_check(mesh);
  }