DistortTest Class Reference

Inheritance diagram for DistortTest:

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

DistortTest::CPPUNIT_TEST_SUITE

(

DistortTest

)

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

CPPUNIT_TEST_SUITE_END()

DistortTest::CPPUNIT_TEST_SUITE_END

(

)

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(), equal(), libMesh::MeshTools::find_boundary_nodes(), mesh, and libMesh::MeshBase::node_ptr_range().

setUp()

void DistortTest::setUp ( )

inline

Definition at line 94 of file distort.C.

{}

tearDown()

void DistortTest::tearDown ( )

inline

Definition at line 95 of file distort.C.

{}

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, and TestCommWorld.

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);
  }

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

testDistortHex()

void DistortTest::testDistortHex ( )

inline

Definition at line 97 of file distort.C.

{ test_helper_3D(HEX8); }

References libMesh::HEX8.

testDistortQuad()

void DistortTest::testDistortQuad ( )

inline

Definition at line 96 of file distort.C.

{ test_helper_2D(QUAD4); }

References libMesh::QUAD4.

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The documentation for this class was generated from the following file:

• tests/mesh/distort.C