libMesh
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GetBoundaryPointsTest Class Reference
Inheritance diagram for GetBoundaryPointsTest:
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Public Member Functions

 CPPUNIT_TEST_SUITE (GetBoundaryPointsTest)
 The goal of this test is to ensure that ReplicatedMesh::get_boundary_points returns a vector of boundary points enclosing the domain. More...
 
 CPPUNIT_TEST (testMesh)
 
 CPPUNIT_TEST_SUITE_END ()
 
void setUp ()
 
void tearDown ()
 
void testMesh ()
 

Protected Member Functions

void build_mesh ()
 

Protected Attributes

ReplicatedMesh * _mesh
 

Detailed Description

Definition at line 12 of file boundary_points.C.

Member Function Documentation

◆ build_mesh()

void GetBoundaryPointsTest::build_mesh ( )
inlineprotected

Definition at line 30 of file boundary_points.C.

31  {
32  _mesh = new ReplicatedMesh(*TestCommWorld, 2);
33 
34  // (0,1) (1,1) (2,1) (3,1) (4,1) (5,1) (6,1)
35  // x---------------x---------------x x-----------x-----------x-----------x
36  // | | | | | | |
37  // | | | | | | |
38  // | | | x-----------x-----------x-----------x
39  // | | | |(3,0.5) | void | |(6,0.5)
40  // | | | | | | |
41  // x---------------x---------------x x-----------x-----------x-----------x
42  // (0,0) (1,0) (2,0) | (3,0) | | |(6,0)
43  // | | | | | | |
44  // | | | | | | |
45  // | | | | | | |
46  // | | | | | | |
47  // x---------------x---------------x x-----------x-----------x-----------x
48  // (0,-1) (1,-1) (2,-1) (3,-1) (6,-1)
49 
50  _mesh->add_point( Point(0.0, 0.0), 0 );
51  _mesh->add_point( Point(1.0, 0.0), 1 );
52  _mesh->add_point( Point(1.0, 1.0), 2 );
53  _mesh->add_point( Point(0.0, 1.0), 3 );
54  _mesh->add_point( Point(0.0,-1.0), 4 );
55  _mesh->add_point( Point(1.0,-1.0), 5 );
56  _mesh->add_point( Point(2.0, 0.0), 6 );
57  _mesh->add_point( Point(2.0, 1.0), 7 );
58  _mesh->add_point( Point(2.0,-1.0), 8 );
59 
60  _mesh->add_point( Point(3.0,-1.0), 9 );
61  _mesh->add_point( Point(3.0, 0.0), 10 );
62  _mesh->add_point( Point(3.0, 0.5), 11 );
63  _mesh->add_point( Point(3.0, 1.0), 12 );
64  _mesh->add_point( Point(4.0,-1.0), 13 );
65  _mesh->add_point( Point(4.0, 0.0), 14 );
66  _mesh->add_point( Point(4.0, 0.5), 15 );
67  _mesh->add_point( Point(4.0, 1.0), 16 );
68  _mesh->add_point( Point(5.0,-1.0), 17 );
69  _mesh->add_point( Point(5.0, 0.0), 18 );
70  _mesh->add_point( Point(5.0, 0.5), 19 );
71  _mesh->add_point( Point(5.0, 1.0), 20 );
72  _mesh->add_point( Point(6.0,-1.0), 21 );
73  _mesh->add_point( Point(6.0, 0.0), 22 );
74  _mesh->add_point( Point(6.0, 0.5), 23 );
75  _mesh->add_point( Point(6.0, 1.0), 24 );
76 
77  {
78  Elem* elem = new Quad4;
79  elem->set_node(0) = _mesh->node_ptr(0);
80  elem->set_node(1) = _mesh->node_ptr(1);
81  elem->set_node(2) = _mesh->node_ptr(2);
82  elem->set_node(3) = _mesh->node_ptr(3);
83  elem->set_id() = 0;
84  _mesh->add_elem(elem);
85  }
86  {
87  Elem* elem = new Quad4;
88  elem->set_node(0) = _mesh->node_ptr(4);
89  elem->set_node(1) = _mesh->node_ptr(5);
90  elem->set_node(2) = _mesh->node_ptr(1);
91  elem->set_node(3) = _mesh->node_ptr(0);
92  elem->set_id() = 1;
93  _mesh->add_elem(elem);
94  }
95  {
96  Elem* elem = new Quad4;
97  elem->set_node(0) = _mesh->node_ptr(7);
98  elem->set_node(1) = _mesh->node_ptr(2);
99  elem->set_node(2) = _mesh->node_ptr(1);
100  elem->set_node(3) = _mesh->node_ptr(6);
101  elem->set_id() = 2;
102  _mesh->add_elem(elem);
103  }
104  {
105  Elem* elem = new Quad4;
106  elem->set_node(0) = _mesh->node_ptr(5);
107  elem->set_node(1) = _mesh->node_ptr(8);
108  elem->set_node(2) = _mesh->node_ptr(6);
109  elem->set_node(3) = _mesh->node_ptr(1);
110  elem->set_id() = 3;
111  _mesh->add_elem(elem);
112  }
113  {
114  Elem* elem = new Quad4;
115  elem->set_node(0) = _mesh->node_ptr(9);
116  elem->set_node(1) = _mesh->node_ptr(13);
117  elem->set_node(2) = _mesh->node_ptr(14);
118  elem->set_node(3) = _mesh->node_ptr(10);
119  elem->set_id() = 4;
120  _mesh->add_elem(elem);
121  }
122  {
123  Elem* elem = new Quad4;
124  elem->set_node(0) = _mesh->node_ptr(10);
125  elem->set_node(1) = _mesh->node_ptr(14);
126  elem->set_node(2) = _mesh->node_ptr(15);
127  elem->set_node(3) = _mesh->node_ptr(11);
128  elem->set_id() = 5;
129  _mesh->add_elem(elem);
130  }
131  {
132  Elem* elem = new Quad4;
133  elem->set_node(0) = _mesh->node_ptr(11);
134  elem->set_node(1) = _mesh->node_ptr(15);
135  elem->set_node(2) = _mesh->node_ptr(16);
136  elem->set_node(3) = _mesh->node_ptr(12);
137  elem->set_id() = 6;
138  _mesh->add_elem(elem);
139  }
140  {
141  Elem* elem = new Quad4;
142  elem->set_node(0) = _mesh->node_ptr(13);
143  elem->set_node(1) = _mesh->node_ptr(17);
144  elem->set_node(2) = _mesh->node_ptr(18);
145  elem->set_node(3) = _mesh->node_ptr(14);
146  elem->set_id() = 7;
147  _mesh->add_elem(elem);
148  }
149  // skip one element here
150  {
151  Elem* elem = new Quad4;
152  elem->set_node(0) = _mesh->node_ptr(15);
153  elem->set_node(1) = _mesh->node_ptr(19);
154  elem->set_node(2) = _mesh->node_ptr(20);
155  elem->set_node(3) = _mesh->node_ptr(16);
156  elem->set_id() = 8;
157  _mesh->add_elem(elem);
158  }
159  {
160  Elem* elem = new Quad4;
161  elem->set_node(0) = _mesh->node_ptr(17);
162  elem->set_node(1) = _mesh->node_ptr(21);
163  elem->set_node(2) = _mesh->node_ptr(22);
164  elem->set_node(3) = _mesh->node_ptr(18);
165  elem->set_id() = 9;
166  _mesh->add_elem(elem);
167  }
168  {
169  Elem* elem = new Quad4;
170  elem->set_node(0) = _mesh->node_ptr(18);
171  elem->set_node(1) = _mesh->node_ptr(22);
172  elem->set_node(2) = _mesh->node_ptr(23);
173  elem->set_node(3) = _mesh->node_ptr(19);
174  elem->set_id() = 10;
175  _mesh->add_elem(elem);
176  }
177  {
178  Elem* elem = new Quad4;
179  elem->set_node(0) = _mesh->node_ptr(19);
180  elem->set_node(1) = _mesh->node_ptr(23);
181  elem->set_node(2) = _mesh->node_ptr(24);
182  elem->set_node(3) = _mesh->node_ptr(20);
183  elem->set_id() = 11;
184  _mesh->add_elem(elem);
185  }
186 
187  // libMesh shouldn't renumber, or our based-on-initial-id
188  // assertions later may fail.
189  _mesh->allow_renumbering(false);
190 
191  _mesh->prepare_for_use();
192  }

References libMesh::ReplicatedMesh::add_elem(), libMesh::ReplicatedMesh::add_point(), libMesh::MeshBase::allow_renumbering(), libMesh::ReplicatedMesh::node_ptr(), libMesh::MeshBase::prepare_for_use(), libMesh::DofObject::set_id(), libMesh::Elem::set_node(), and TestCommWorld.

◆ CPPUNIT_TEST()

GetBoundaryPointsTest::CPPUNIT_TEST ( testMesh  )

◆ CPPUNIT_TEST_SUITE()

GetBoundaryPointsTest::CPPUNIT_TEST_SUITE ( GetBoundaryPointsTest  )

The goal of this test is to ensure that ReplicatedMesh::get_boundary_points returns a vector of boundary points enclosing the domain.

◆ CPPUNIT_TEST_SUITE_END()

GetBoundaryPointsTest::CPPUNIT_TEST_SUITE_END ( )

◆ setUp()

void GetBoundaryPointsTest::setUp ( )
inline

Definition at line 195 of file boundary_points.C.

196  {
197 #if LIBMESH_DIM > 1
198  this->build_mesh();
199 #endif
200  }

◆ tearDown()

void GetBoundaryPointsTest::tearDown ( )
inline

Definition at line 202 of file boundary_points.C.

203  {
204  delete _mesh;
205  }

◆ testMesh()

void GetBoundaryPointsTest::testMesh ( )
inline

Definition at line 207 of file boundary_points.C.

208  {
209  const auto points = _mesh->get_boundary_points();
210 
211  // There'd better be two disconnected subdomains
212  CPPUNIT_ASSERT_EQUAL( (std::size_t)2, points.size() );
213 
214  // The first key should better be element 0
215  auto it = points.find(0);
216  CPPUNIT_ASSERT(it != points.end());
217 
218  // There'd better be one boundary in the first subdomain
219  CPPUNIT_ASSERT_EQUAL( (std::size_t)1, it->second.size() );
220 
221  // There'd better be eight points on the boundary of the first subdomain
222  CPPUNIT_ASSERT_EQUAL( (std::size_t)8, it->second[0].size() );
223 
224  // Boundary points should better start from (1,1)
225  CPPUNIT_ASSERT_EQUAL( Point(1,1), it->second[0][0] );
226 
227  // Boundary points should better end with (2,1)
228  CPPUNIT_ASSERT_EQUAL( Point(2,1), it->second[0][7] );
229 
230  // The second key should better be element 4
231  it = points.find(4);
232  CPPUNIT_ASSERT(it != points.end());
233 
234  // There'd better be two boundaries in the second subdomain due to the middle hole
235  CPPUNIT_ASSERT_EQUAL( (std::size_t)2, it->second.size() );
236 
237  // There'd better be 12 points on the first (outer) boundary of the second subdomain
238  CPPUNIT_ASSERT_EQUAL( (std::size_t)12, it->second[0].size() );
239 
240  // There'd better be 4 points on the first (inner) boundary of the second subdomain
241  CPPUNIT_ASSERT_EQUAL( (std::size_t)4, it->second[1].size() );
242 
243  // The first boundary points should better start from (3,-1)
244  CPPUNIT_ASSERT_EQUAL( Point(3,-1), it->second[0][0] );
245 
246  // The first boundary points should better end with (3,0)
247  CPPUNIT_ASSERT_EQUAL( Point(3,0), it->second[0][11] );
248 
249  // The second boundary points should better start from (4,0)
250  CPPUNIT_ASSERT_EQUAL( Point(4,0), it->second[1][0] );
251 
252  // The second boundary points should better end with (5,0)
253  CPPUNIT_ASSERT_EQUAL( Point(5,0), it->second[1][3] );
254  }

References libMesh::ReplicatedMesh::get_boundary_points().

Member Data Documentation

◆ _mesh

ReplicatedMesh* GetBoundaryPointsTest::_mesh
protected

Definition at line 28 of file boundary_points.C.

The documentation for this class was generated from the following file:
libMesh::ReplicatedMesh::node_ptr
virtual const Node * node_ptr(const dof_id_type i) const override
Definition: replicated_mesh.C:182
libMesh::DofObject::set_id
dof_id_type & set_id()
Definition: dof_object.h:776
libMesh::ReplicatedMesh::add_elem
virtual Elem * add_elem(Elem *e) override
Add elem e to the end of the element array.
Definition: replicated_mesh.C:282
GetBoundaryPointsTest::_mesh
ReplicatedMesh * _mesh
Definition: boundary_points.C:28
libMesh::ReplicatedMesh
The ReplicatedMesh class is derived from the MeshBase class, and is used to store identical copies of...
Definition: replicated_mesh.h:47
TestCommWorld
libMesh::Parallel::Communicator * TestCommWorld
Definition: driver.C:111
GetBoundaryPointsTest::build_mesh
void build_mesh()
Definition: boundary_points.C:30
libMesh::Point
A Point defines a location in LIBMESH_DIM dimensional Real space.
Definition: point.h:38
libMesh::Quad4
The QUAD4 is an element in 2D composed of 4 nodes.
Definition: face_quad4.h:51
libMesh::Elem::set_node
virtual Node *& set_node(const unsigned int i)
Definition: elem.h:2059
libMesh::Elem
This is the base class from which all geometric element types are derived.
Definition: elem.h:100
libMesh::MeshBase::allow_renumbering
void allow_renumbering(bool allow)
If false is passed in then this mesh will no longer be renumbered when being prepared for use.
Definition: mesh_base.h:1025
libMesh::MeshBase::prepare_for_use
void prepare_for_use(const bool skip_renumber_nodes_and_elements=false, const bool skip_find_neighbors=false)
Prepare a newly ecreated (or read) mesh for use.
Definition: mesh_base.C:318
libMesh::ReplicatedMesh::add_point
virtual Node * add_point(const Point &p, const dof_id_type id=DofObject::invalid_id, const processor_id_type proc_id=DofObject::invalid_processor_id) override
functions for adding /deleting nodes elements.
Definition: replicated_mesh.C:417
libMesh::ReplicatedMesh::get_boundary_points
std::unordered_map< dof_id_type, std::vector< std::vector< Point > > > get_boundary_points() const
Return all points on boundary.
Definition: replicated_mesh.C:1498
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