def test_get_triangles_and_vertices_per_node(self): """test_get_triangles_and_vertices_per_node - Test that tuples of triangle, vertex can be extracted from inverted triangles structure """ a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) #bac, bce, ecf, dbe, daf, dae triangles = num.array([[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) domain = General_mesh(nodes, triangles) # One node L = domain.get_triangles_and_vertices_per_node(node=2) assert num.allclose(L[0], [0, 2]) assert num.allclose(L[1], [1, 1]) assert num.allclose(L[2], [2, 1]) # All nodes ALL = domain.get_triangles_and_vertices_per_node() assert len(ALL) == 6 for i, Lref in enumerate(ALL): L = domain.get_triangles_and_vertices_per_node(node=i) assert num.allclose(L, Lref)
def test_get_triangles_and_vertices_per_node(self): """test_get_triangles_and_vertices_per_node - Test that tuples of triangle, vertex can be extracted from inverted triangles structure """ a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) #bac, bce, ecf, dbe, daf, dae triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) domain = General_mesh(nodes, triangles) # One node L = domain.get_triangles_and_vertices_per_node(node=2) assert num.allclose(L[0], [0, 2]) assert num.allclose(L[1], [1, 1]) assert num.allclose(L[2], [2, 1]) # All nodes ALL = domain.get_triangles_and_vertices_per_node() assert len(ALL) == 6 for i, Lref in enumerate(ALL): L = domain.get_triangles_and_vertices_per_node(node=i) assert num.allclose(L, Lref)
def test_get_vertex_coordinates_with_geo_ref(self): x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # bac, bce, ecf, dbe triangles = num.array([[1,0,2], [1,2,4], [4,2,5], [3,1,4]], num.int) domain = General_mesh(nodes, triangles, geo_reference=geo) verts = domain.get_vertex_coordinates(triangle_id=0) # bac msg = ("num.array([b,a,c])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([b,a,c])), str(verts))) self.assertTrue(num.allclose(num.array([b,a,c]), verts), msg) verts = domain.get_vertex_coordinates(triangle_id=0) msg = ("num.array([b,a,c])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([b,a,c])), str(verts))) self.assert_(num.allclose(num.array([b,a,c]), verts), msg) verts = domain.get_vertex_coordinates(triangle_id=0, absolute=True) msg = ("num.array([...])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([nodes_absolute[1], nodes_absolute[0], nodes_absolute[2]])), str(verts))) self.assert_(num.allclose(num.array([nodes_absolute[1], nodes_absolute[0], nodes_absolute[2]]), verts), msg) verts = domain.get_vertex_coordinates(triangle_id=0, absolute=True) msg = ("num.array([...])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([nodes_absolute[1], nodes_absolute[0], nodes_absolute[2]])), str(verts))) self.assert_(num.allclose(num.array([nodes_absolute[1], nodes_absolute[0], nodes_absolute[2]]), verts), msg)
def test_vertex_value_indices(self): """Check that structures are correct. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) #bac, bce, ecf, dbe, daf, dae triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) domain1 = General_mesh(nodes, triangles) #Create larger mesh nodes, triangles, _ = rectangular(3, 6) domain2 = General_mesh(nodes, triangles) # Test both meshes for domain in [domain1, domain2]: assert sum(domain.number_of_triangles_per_node) ==\ len(domain.vertex_value_indices) # Check number of triangles per node count = [0] * domain.number_of_nodes for triangle in domain.triangles: for i in triangle: count[i] += 1 #print count # assert num.allclose(count, domain.number_of_triangles_per_node) # Check indices current_node = 0 k = 0 # Track triangles touching on node for index in domain.vertex_value_indices: k += 1 triangle = old_div(index, 3) vertex = index % 3 assert domain.triangles[triangle, vertex] == current_node if domain.number_of_triangles_per_node[current_node] == k: # Move on to next node k = 0 current_node += 1
def test_get_unique_vertex_values(self): """ get unique_vertex based on triangle lists. """ #Create basic mesh points, vertices, boundary = rectangular(1, 3) domain = General_mesh(points, vertices) assert domain.get_unique_vertices() == [0, 1, 2, 3, 4, 5, 6, 7] unique_vertices = domain.get_unique_vertices([0, 1, 4]) assert unique_vertices == [0, 1, 2, 4, 5, 6, 7] unique_vertices = domain.get_unique_vertices([0, 4]) assert unique_vertices == [0, 2, 4, 5, 6, 7]
def test_get_node(self): """test_get_triangles_and_vertices_per_node - Test that tuples of triangle, vertex can be extracted from inverted triangles structure """ x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # bac, bce, ecf, dbe triangles = num.array([[1,0,2], [1,2,4], [4,2,5], [3,1,4]]) domain = General_mesh(nodes, triangles, geo_reference = geo) node = domain.get_node(2) msg = ('\nc=%s\nnode=%s' % (str(c), str(node))) self.assertTrue(num.alltrue(c == node), msg) # repeat get_node(), see if result same node = domain.get_node(2) msg = ('\nc=%s\nnode=%s' % (str(c), str(node))) self.assertTrue(num.alltrue(c == node), msg) node = domain.get_node(2, absolute=True) msg = ('\nnodes_absolute[2]=%s\nnode=%s' % (str(nodes_absolute[2]), str(node))) self.assertTrue(num.alltrue(nodes_absolute[2] == node), msg) # repeat get_node(2, absolute=True), see if result same node = domain.get_node(2, absolute=True) msg = ('\nnodes_absolute[2]=%s\nnode=%s' % (str(nodes_absolute[2]), str(node))) self.assertTrue(num.alltrue(nodes_absolute[2] == node), msg)
def test_get_unique_vertex_values(self): """ get unique_vertex based on triangle lists. """ #Create basic mesh points, vertices, boundary = rectangular(1, 3) domain = General_mesh(points, vertices) assert domain.get_unique_vertices() == [0,1,2,3,4,5,6,7] unique_vertices = domain.get_unique_vertices([0,1,4]) unique_vertices.sort() assert unique_vertices == [0,1,2,4,5,6,7] unique_vertices = domain.get_unique_vertices([0,4]) unique_vertices.sort() assert unique_vertices == [0,2,4,5,6,7]
def test_get_vertex_coordinates(self): from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles V = domain.get_vertex_coordinates() assert V.shape[0] == 3 * M for i in range(M): for j in range(3): k = triangles[i, j] #Index of vertex j in triangle i assert num.allclose(V[3 * i + j, :], nodes[k])
def test_get_edge_midpoint_coordinates_with_geo_ref(self): x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = num.array([0.0, 0.0]) b = num.array([0.0, 2.0]) c = num.array([2.0, 0.0]) d = num.array([0.0, 4.0]) e = num.array([2.0, 2.0]) f = num.array([4.0, 0.0]) nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # bac, bce, ecf, dbe triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]], num.int) domain = General_mesh(nodes, triangles, geo_reference=geo) verts = domain.get_edge_midpoint_coordinates(triangle_id=0) # bac msg = ( "num.array(1/2[a+c,b+c,a+b])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([0.5 * (a + c), 0.5 * (b + c), 0.5 * (a + b)])), str(verts))) self.assertTrue( num.allclose( num.array([0.5 * (a + c), 0.5 * (b + c), 0.5 * (a + b)]), verts), msg) verts = domain.get_edge_midpoint_coordinates(triangle_id=0, absolute=True) msg = ("num.array([...])=\n%s\nshould be close to 'verts'=\n%s" % (str(0.5 * num.array([ nodes_absolute[0] + nodes_absolute[2], nodes_absolute[1] + nodes_absolute[2], nodes_absolute[1] + nodes_absolute[0] ])), str(verts))) self.assertTrue( num.allclose( 0.5 * num.array([ nodes_absolute[0] + nodes_absolute[2], nodes_absolute[1] + nodes_absolute[2], nodes_absolute[1] + nodes_absolute[0] ]), verts), msg)
def test_get_vertex_values(self): """Get connectivity based on triangle lists. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) msg = ("domain.get_triangles()=\n%s\nshould be the same as " "'triangles'=\n%s" % (str(domain.get_triangles()), str(triangles))) assert num.allclose(domain.get_triangles(), triangles), msg msg = ("domain.get_triangles([0,4])=\n%s\nshould be the same as " "'[triangles[0], triangles[4]]' which is\n%s" % (str(domain.get_triangles([0,4])), str([triangles[0], triangles[4]]))) assert num.allclose(domain.get_triangles([0,4]), [triangles[0], triangles[4]]), msg
def test_get_vertex_coordinates(self): from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles V = domain.get_vertex_coordinates() assert V.shape[0] == 3*M for i in range(M): for j in range(3): k = triangles[i,j] #Index of vertex j in triangle i assert num.allclose(V[3*i+j,:], nodes[k])
def test_get_vertex_coordinates_triangle_id(self): """test_get_vertex_coordinates_triangle_id Test that vertices for one triangle can be returned. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles for i in range(M): V = domain.get_vertex_coordinates(triangle_id=i) assert V.shape[0] == 3 for j in range(3): k = triangles[i, j] #Index of vertex j in triangle i assert num.allclose(V[j, :], nodes[k])
def test_get_edge_midpoint_coordinates_triangle_id(self): """test_get_vertex_coordinates_triangle_id Test that vertices for one triangle can be returned. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles for i in range(M): E = domain.get_edge_midpoint_coordinates(triangle_id=i) assert E.shape[0] == 3 k0 = triangles[i, 0] #Index of vertex 0 in triangle i k1 = triangles[i, 1] #Index of vertex 0 in triangle i k2 = triangles[i, 2] #Index of vertex 0 in triangle i assert num.allclose(E[0, :], 0.5 * (nodes[k1] + nodes[k2])) assert num.allclose(E[1, :], 0.5 * (nodes[k0] + nodes[k2])) assert num.allclose(E[2, :], 0.5 * (nodes[k1] + nodes[k0])) E0 = domain.get_edge_midpoint_coordinate(i, 0) E1 = domain.get_edge_midpoint_coordinate(i, 1) E2 = domain.get_edge_midpoint_coordinate(i, 2) assert num.allclose(E0, 0.5 * (nodes[k1] + nodes[k2])) assert num.allclose(E1, 0.5 * (nodes[k0] + nodes[k2])) assert num.allclose(E2, 0.5 * (nodes[k1] + nodes[k0]))
def test_get_edge_midpoint_coordinates(self): from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles E = domain.get_edge_midpoint_coordinates() assert E.shape[0] == 3 * M for i in range(M): k0 = triangles[i, 0] #Index of vertex 0 in triangle i k1 = triangles[i, 1] #Index of vertex 1 in triangle i k2 = triangles[i, 2] #Index of vertex 2 in triangle i assert num.allclose(E[3 * i + 0, :], 0.5 * (nodes[k1] + nodes[k2])) assert num.allclose(E[3 * i + 1, :], 0.5 * (nodes[k0] + nodes[k2])) assert num.allclose(E[3 * i + 2, :], 0.5 * (nodes[k1] + nodes[k0]))
def test_get_vertex_coordinates_triangle_id(self): """test_get_vertex_coordinates_triangle_id Test that vertices for one triangle can be returned. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles for i in range(M): V = domain.get_vertex_coordinates(triangle_id=i) assert V.shape[0] == 3 for j in range(3): k = triangles[i,j] #Index of vertex j in triangle i assert num.allclose(V[j,:], nodes[k])
def test_assert_index_in_nodes(self): """test_assert_index_in_nodes - Test that node indices in triangles are within nodes array. """ x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # max index is 5, use 5, expect success triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) General_mesh(nodes, triangles, geo_reference=geo) # should fail with negative area triangles = num.array([[0, 1, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) self.assertRaises(AssertionError, General_mesh, nodes, triangles, geo_reference=geo) # max index is 5, use 6, expect assert failure triangles = num.array([[1, 6, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) self.assertRaises(AssertionError, General_mesh, nodes, triangles, geo_reference=geo) # max index is 5, use 10, expect assert failure triangles = num.array([[1, 10, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) self.assertRaises(AssertionError, General_mesh, nodes, triangles, geo_reference=geo)
def test_get_edge_midpoint_coordinates(self): from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles E = domain.get_edge_midpoint_coordinates() assert E.shape[0] == 3*M for i in range(M): k0 = triangles[i,0] #Index of vertex 0 in triangle i k1 = triangles[i,1] #Index of vertex 1 in triangle i k2 = triangles[i,2] #Index of vertex 2 in triangle i assert num.allclose(E[3*i+0,:], 0.5*(nodes[k1]+nodes[k2]) ) assert num.allclose(E[3*i+1,:], 0.5*(nodes[k0]+nodes[k2]) ) assert num.allclose(E[3*i+2,:], 0.5*(nodes[k1]+nodes[k0]) )
def test_get_edge_midpoint_coordinates_triangle_id(self): """test_get_vertex_coordinates_triangle_id Test that vertices for one triangle can be returned. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) assert num.allclose(domain.get_nodes(), nodes) M = domain.number_of_triangles for i in range(M): E = domain.get_edge_midpoint_coordinates(triangle_id=i) assert E.shape[0] == 3 k0 = triangles[i,0] #Index of vertex 0 in triangle i k1 = triangles[i,1] #Index of vertex 0 in triangle i k2 = triangles[i,2] #Index of vertex 0 in triangle i assert num.allclose(E[0,:], 0.5*(nodes[k1]+nodes[k2])) assert num.allclose(E[1,:], 0.5*(nodes[k0]+nodes[k2])) assert num.allclose(E[2,:], 0.5*(nodes[k1]+nodes[k0])) E0 = domain.get_edge_midpoint_coordinate(i, 0 ) E1 = domain.get_edge_midpoint_coordinate(i, 1 ) E2 = domain.get_edge_midpoint_coordinate(i, 2 ) assert num.allclose(E0, 0.5*(nodes[k1]+nodes[k2])) assert num.allclose(E1, 0.5*(nodes[k0]+nodes[k2])) assert num.allclose(E2, 0.5*(nodes[k1]+nodes[k0]))
def test_get_edge_midpoint_coordinates_with_geo_ref(self): x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = num.array([0.0, 0.0]) b = num.array([0.0, 2.0]) c = num.array([2.0, 0.0]) d = num.array([0.0, 4.0]) e = num.array([2.0, 2.0]) f = num.array([4.0, 0.0]) nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # bac, bce, ecf, dbe triangles = num.array([[1,0,2], [1,2,4], [4,2,5], [3,1,4]], num.int) domain = General_mesh(nodes, triangles, geo_reference=geo) verts = domain.get_edge_midpoint_coordinates(triangle_id=0) # bac msg = ("num.array(1/2[a+c,b+c,a+b])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([0.5*(a+c),0.5*(b+c),0.5*(a+b)])), str(verts))) self.assertTrue(num.allclose(num.array([0.5*(a+c),0.5*(b+c),0.5*(a+b)]), verts), msg) verts = domain.get_edge_midpoint_coordinates(triangle_id=0, absolute=True) msg = ("num.array([...])=\n%s\nshould be close to 'verts'=\n%s" % (str(0.5*num.array([nodes_absolute[0]+nodes_absolute[2], nodes_absolute[1]+nodes_absolute[2], nodes_absolute[1]+nodes_absolute[0]])), str(verts))) self.assert_(num.allclose(0.5*num.array([nodes_absolute[0]+nodes_absolute[2], nodes_absolute[1]+nodes_absolute[2], nodes_absolute[1]+nodes_absolute[0]]), verts), msg)
def test_get_vertex_coordinates_with_geo_ref(self): x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # bac, bce, ecf, dbe triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]], num.int) domain = General_mesh(nodes, triangles, geo_reference=geo) verts = domain.get_vertex_coordinates(triangle_id=0) # bac msg = ("num.array([b,a,c])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([b, a, c])), str(verts))) self.assertTrue(num.allclose(num.array([b, a, c]), verts), msg) verts = domain.get_vertex_coordinates(triangle_id=0) msg = ("num.array([b,a,c])=\n%s\nshould be close to 'verts'=\n%s" % (str(num.array([b, a, c])), str(verts))) self.assertTrue(num.allclose(num.array([b, a, c]), verts), msg) verts = domain.get_vertex_coordinates(triangle_id=0, absolute=True) msg = ("num.array([...])=\n%s\nshould be close to 'verts'=\n%s" % (str( num.array([ nodes_absolute[1], nodes_absolute[0], nodes_absolute[2] ])), str(verts))) self.assertTrue( num.allclose( num.array( [nodes_absolute[1], nodes_absolute[0], nodes_absolute[2]]), verts), msg) verts = domain.get_vertex_coordinates(triangle_id=0, absolute=True) msg = ("num.array([...])=\n%s\nshould be close to 'verts'=\n%s" % (str( num.array([ nodes_absolute[1], nodes_absolute[0], nodes_absolute[2] ])), str(verts))) self.assertTrue( num.allclose( num.array( [nodes_absolute[1], nodes_absolute[0], nodes_absolute[2]]), verts), msg)
def test_two_degenerate_triangles(self): a = num.array([1.0, 1.0]) b = num.array([0.0, 2.0]) c = num.array([2.0, 0.0]) d = num.array([1.0, 2.0]) e = num.array([2.0, 2.0]) f = num.array([4.0, 0.0]) nodes = num.array([a, b, c, d, e, f]) # bac, bce, ecf, dbe triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]], num.int) try: domain = General_mesh(nodes, triangles) except AssertionError: #print 'excepted assertion error' pass
def test_get_node(self): """test_get_triangles_and_vertices_per_node - Test that tuples of triangle, vertex can be extracted from inverted triangles structure """ x0 = 314036.58727982 y0 = 6224951.2960092 geo = Geo_reference(56, x0, y0) a = [0.0, 0.0] b = [0.0, 2.0] c = [2.0, 0.0] d = [0.0, 4.0] e = [2.0, 2.0] f = [4.0, 0.0] nodes = num.array([a, b, c, d, e, f]) nodes_absolute = geo.get_absolute(nodes) # bac, bce, ecf, dbe triangles = num.array([[1, 0, 2], [1, 2, 4], [4, 2, 5], [3, 1, 4]]) domain = General_mesh(nodes, triangles, geo_reference=geo) node = domain.get_node(2) msg = ('\nc=%s\nnode=%s' % (str(c), str(node))) self.assertTrue(num.alltrue(c == node), msg) # repeat get_node(), see if result same node = domain.get_node(2) msg = ('\nc=%s\nnode=%s' % (str(c), str(node))) self.assertTrue(num.alltrue(c == node), msg) node = domain.get_node(2, absolute=True) msg = ('\nnodes_absolute[2]=%s\nnode=%s' % (str(nodes_absolute[2]), str(node))) self.assertTrue(num.alltrue(nodes_absolute[2] == node), msg) # repeat get_node(2, absolute=True), see if result same node = domain.get_node(2, absolute=True) msg = ('\nnodes_absolute[2]=%s\nnode=%s' % (str(nodes_absolute[2]), str(node))) self.assertTrue(num.alltrue(nodes_absolute[2] == node), msg)
def test_get_vertex_values(self): """Get connectivity based on triangle lists. """ from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular #Create basic mesh nodes, triangles, _ = rectangular(1, 3) domain = General_mesh(nodes, triangles) msg = ("domain.get_triangles()=\n%s\nshould be the same as " "'triangles'=\n%s" % (str(domain.get_triangles()), str(triangles))) assert num.allclose(domain.get_triangles(), triangles), msg msg = ("domain.get_triangles([0,4])=\n%s\nshould be the same as " "'[triangles[0], triangles[4]]' which is\n%s" % (str(domain.get_triangles( [0, 4])), str([triangles[0], triangles[4]]))) assert num.allclose(domain.get_triangles([0, 4]), [triangles[0], triangles[4]]), msg
def test_areas(self): #Create basic mesh points, vertices, boundary = rectangular(1, 3) domain = General_mesh(points, vertices) assert domain.get_area() == 1.0
def test_areas(self): #Create basic mesh points, vertices, boundary = rectangular(1, 3) domain = General_mesh(points, vertices) assert domain.get_area() == 1.0