10 from salome.geom import geomBuilder
12 geompy = geomBuilder.New()
24 O = geompy.MakeVertex(0, 0, 0)
25 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
26 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
27 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
28 geompy.addToStudy( O, 'O' )
29 geompy.addToStudy( OX, 'OX' )
30 geompy.addToStudy( OY, 'OY' )
31 geompy.addToStudy( OZ, 'OZ' )
33 Cylinder_1 = geompy.MakeCylinderRH(r1, h1)
34 Cylinder_2 = geompy.MakeCylinderRH(r2, h2)
35 Rotation_1 = geompy.MakeRotation(Cylinder_2, OY, -90*math.pi/180.0)
36 Translation_1 = geompy.MakeTranslation(Rotation_1, 0, 0, length_piquage)
38 tpipe = geompy.MakeFuseList([Cylinder_1, Translation_1], True, True)
39 geompy.addToStudy( tpipe, 'tpipe' )
41 Inlet_z = geompy.GetFaceNearPoint(tpipe, O)
42 geompy.addToStudyInFather( tpipe, Inlet_z, 'Inlet_z' )
44 p_inlet_x = geompy.MakeVertex(-h2, 0, length_piquage)
45 Inlet_x = geompy.GetFaceNearPoint(tpipe, p_inlet_x)
46 geompy.addToStudyInFather( tpipe, Inlet_x, 'Inlet_x' )
48 p_outlet = geompy.MakeVertex(0, 0, h1)
49 Outlet = geompy.GetFaceNearPoint(tpipe, p_outlet)
50 geompy.addToStudyInFather( tpipe, Outlet, 'Outlet' )
52 Wall = geompy.CreateGroup(tpipe, geompy.ShapeType["FACE"])
53 faces = geompy.SubShapeAll(tpipe, geompy.ShapeType["FACE"])
54 geompy.UnionList(Wall, faces)
55 geompy.DifferenceList(Wall, [Inlet_x, Inlet_z, Outlet])
56 geompy.addToStudyInFather( tpipe, Wall, 'Wall' )
58 p_corner = geompy.MakeVertex(-r2, 0, length_piquage+r2)
59 corner = geompy.GetVertexNearPoint(tpipe, p_corner)
60 geompy.addToStudyInFather( tpipe, corner, 'corner' )
62 geom_groups = [Inlet_x, Inlet_z, Outlet, Wall]
64 volumeGEOM = geompy.BasicProperties(tpipe)[2]
70 import SMESH, SALOMEDS
71 from salome.smesh import smeshBuilder
73 from salome.StdMeshers import StdMeshersBuilder
75 smesh = smeshBuilder.New()
77 # Coarse mesh with default hypothesis
78 Mesh_1 = smesh.Mesh(tpipe, "Mesh_coarse")
80 Mesh_1.Triangle(algo=smeshBuilder.NETGEN_1D2D)
82 algo3d = Mesh_1.Tetrahedron(algo=smeshBuilder.NETGEN_3D)
83 algo3d.MaxElementVolume(0.0002)
85 isDone = Mesh_1.Compute()
87 raise Exception("Error when computing Mesh")
92 for geom_group in geom_groups:
93 gr = Mesh_1.Group(geom_group)
94 gr_name = gr.GetName()
95 d_mesh_groups[gr_name] = gr
96 d_geom_groups[gr_name] = geom_group
98 # Check tetra mesh volume
99 tetra_volume = smesh.GetVolume(Mesh_1)
100 shape_volume = geompy.BasicProperties(tpipe)[2]
101 assert abs(tetra_volume-shape_volume)/shape_volume < 0.05
103 dual_Mesh_raw_1 = smesh.CreateDualMesh(Mesh_1, 'dual_Mesh_raw_1', False)
106 assert dual_Mesh_raw_1.NbPolyhedrons() > 0
107 assert dual_Mesh_raw_1.NbPolyhedrons() == dual_Mesh_raw_1.NbVolumes()
109 # Check dual mesh volume
110 dual_raw_volume = dual_Mesh_raw_1.GetVolume()
111 assert abs(dual_raw_volume-shape_volume)/shape_volume < 0.14
114 dual_Mesh_raw_groups = dual_Mesh_raw_1.GetGroups()
115 dual_Mesh_raw_group_names = dual_Mesh_raw_1.GetGroupNames()
117 assert len(dual_Mesh_raw_groups) == 4
119 ## Create dual mesh with projection on faces
120 dual_Mesh_1 = smesh.CreateDualMesh(Mesh_1, 'dual_Mesh_1', True)
122 # Check dual mesh volume
123 dual_volume = dual_Mesh_1.GetVolume()
124 print("shape_volume: ", shape_volume)
125 print("tetra_volume: ", tetra_volume)
126 print("dual_volume: ", dual_volume)
127 print("dual_raw_volume: ", dual_raw_volume)
128 assert (dual_volume >= dual_raw_volume)
130 assert abs(dual_volume-shape_volume)/shape_volume < 0.14
131 assert abs(dual_raw_volume-tetra_volume)/tetra_volume < 1e-12
134 dual_Mesh_groups = dual_Mesh_1.GetGroups()
135 dual_Mesh_group_names = dual_Mesh_1.GetGroupNames()
136 d_mesh_dual_groups = {}
137 for gr_name, gr in zip(dual_Mesh_group_names, dual_Mesh_groups):
138 gr_name = gr_name.strip()
139 d_mesh_dual_groups[gr_name] = gr
141 for gr_dual_raw, gr_name in zip(dual_Mesh_raw_groups, dual_Mesh_raw_group_names):
142 gr_name = gr_name.strip()
143 gr_tri = d_mesh_groups[gr_name]
144 gr_dual = d_mesh_dual_groups[gr_name]
145 gr_geom = d_geom_groups[gr_name]
146 area_gr_geom = geompy.BasicProperties(gr_geom)[1]
147 area_gr_tri = smesh.GetArea(gr_tri)
148 area_gr_dual_raw = smesh.GetArea(gr_dual_raw)
149 area_gr_dual = smesh.GetArea(gr_dual)
151 print("Area geom: ", area_gr_geom)
152 print("Area tri: ", area_gr_tri)
153 print("Area dual raw:", area_gr_dual_raw)
154 print("Area dual:", area_gr_dual)
155 assert abs(area_gr_geom-area_gr_dual)/area_gr_geom < 0.015
156 assert abs(area_gr_tri-area_gr_dual_raw)/area_gr_tri < 1e-3
159 if salome.sg.hasDesktop():
160 salome.sg.updateObjBrowser()