1 # Extrusion along a Path
8 from salome.geom import geomBuilder
9 geompy = geomBuilder.New(salome.myStudy)
11 import SMESH, SALOMEDS
12 from salome.smesh import smeshBuilder
13 smesh = smeshBuilder.New(salome.myStudy)
16 points = [[0, 0], [50, 30], [50, 110], [0, 150], [-80, 150], [-130, 70], [-130, -20]]
21 vert = geompy.MakeVertex(point[0], point[1], 0)
22 geompy.addToStudy(vert, "Vertex_" + `iv`)
27 # 2. Create edges and wires
28 Edge_straight = geompy.MakeEdge(vertices[0], vertices[4])
29 Edge_bezierrr = geompy.MakeBezier(vertices)
30 Wire_polyline = geompy.MakePolyline(vertices)
31 Edge_Circle = geompy.MakeCircleThreePnt(vertices[0], vertices[1], vertices[2])
33 geompy.addToStudy(Edge_straight, "Edge_straight")
34 geompy.addToStudy(Edge_bezierrr, "Edge_bezierrr")
35 geompy.addToStudy(Wire_polyline, "Wire_polyline")
36 geompy.addToStudy(Edge_Circle , "Edge_Circle")
38 # 3. Explode wire on edges, as they will be used for mesh extrusion
39 Wire_polyline_edges = geompy.SubShapeAll(Wire_polyline, geompy.ShapeType["EDGE"])
40 for ii in range(len(Wire_polyline_edges)):
41 geompy.addToStudyInFather(Wire_polyline, Wire_polyline_edges[ii], "Edge_" + `ii + 1`)
46 # Mesh the given shape with the given 1d hypothesis
47 def Mesh1D(shape1d, nbSeg, name):
48 mesh1d_tool = smesh.Mesh(shape1d, name)
49 algo = mesh1d_tool.Segment()
50 hyp = algo.NumberOfSegments(nbSeg)
51 isDone = mesh1d_tool.Compute()
52 if not isDone: print 'Mesh ', name, ': computation failed'
55 # Create a mesh with six nodes, seven edges and two quadrangle faces
56 def MakeQuadMesh2(mesh_name):
57 quad_1 = smesh.Mesh(name = mesh_name)
60 n1 = quad_1.AddNode(0, 20, 10)
61 n2 = quad_1.AddNode(0, 40, 10)
62 n3 = quad_1.AddNode(0, 40, 30)
63 n4 = quad_1.AddNode(0, 20, 30)
64 n5 = quad_1.AddNode(0, 0, 30)
65 n6 = quad_1.AddNode(0, 0, 10)
68 quad_1.AddEdge([n1, n2]) # 1
69 quad_1.AddEdge([n2, n3]) # 2
70 quad_1.AddEdge([n3, n4]) # 3
71 quad_1.AddEdge([n4, n1]) # 4
72 quad_1.AddEdge([n4, n5]) # 5
73 quad_1.AddEdge([n5, n6]) # 6
74 quad_1.AddEdge([n6, n1]) # 7
76 # two quadrangle faces
77 quad_1.AddFace([n1, n2, n3, n4]) # 8
78 quad_1.AddFace([n1, n4, n5, n6]) # 9
79 return [quad_1, [1,2,3,4,5,6,7], [8,9]]
82 Edge_straight_mesh = Mesh1D(Edge_straight, 7, "Edge_straight")
83 Edge_bezierrr_mesh = Mesh1D(Edge_bezierrr, 7, "Edge_bezierrr")
84 Wire_polyline_mesh = Mesh1D(Wire_polyline, 3, "Wire_polyline")
85 Edge_Circle_mesh = Mesh1D(Edge_Circle , 8, "Edge_Circle")
87 # Initial meshes (to be extruded)
88 [quad_1, ee_1, ff_1] = MakeQuadMesh2("quad_1")
89 [quad_2, ee_2, ff_2] = MakeQuadMesh2("quad_2")
90 [quad_3, ee_3, ff_3] = MakeQuadMesh2("quad_3")
91 [quad_4, ee_4, ff_4] = MakeQuadMesh2("quad_4")
92 [quad_5, ee_5, ff_5] = MakeQuadMesh2("quad_5")
93 [quad_6, ee_6, ff_6] = MakeQuadMesh2("quad_6")
94 [quad_7, ee_7, ff_7] = MakeQuadMesh2("quad_7")
97 # IDsOfElements, PathMesh, PathShape, NodeStart,
98 # HasAngles, Angles, HasRefPoint, RefPoint
99 refPoint = SMESH.PointStruct(0, 0, 0)
100 a10 = 10.0*math.pi/180.0
101 a45 = 45.0*math.pi/180.0
103 # 1. Extrusion of two mesh edges along a straight path
104 error = quad_1.ExtrusionAlongPath([1,2], Edge_straight_mesh, Edge_straight, 1,
107 # 2. Extrusion of one mesh edge along a curved path
108 error = quad_2.ExtrusionAlongPath([2], Edge_bezierrr_mesh, Edge_bezierrr, 1,
111 # 3. Extrusion of one mesh edge along a curved path with usage of angles
112 error = quad_3.ExtrusionAlongPath([2], Edge_bezierrr_mesh, Edge_bezierrr, 1,
113 1, [a45, a45, a45, 0, -a45, -a45, -a45], 0, refPoint)
115 # 4. Extrusion of one mesh edge along the path, which is a part of a meshed wire
116 error = quad_4.ExtrusionAlongPath([4], Wire_polyline_mesh, Wire_polyline_edges[0], 1,
117 1, [a10, a10, a10], 0, refPoint)
119 # 5. Extrusion of two mesh faces along the path, which is a part of a meshed wire
120 error = quad_5.ExtrusionAlongPath(ff_5 , Wire_polyline_mesh, Wire_polyline_edges[2], 4,
123 # 6. Extrusion of two mesh faces along a closed path
124 error = quad_6.ExtrusionAlongPath(ff_6 , Edge_Circle_mesh, Edge_Circle, 1,
127 # 7. Extrusion of two mesh faces along a closed path with usage of angles
128 error = quad_7.ExtrusionAlongPath(ff_7, Edge_Circle_mesh, Edge_Circle, 1,
129 1, [a45, -a45, a45, -a45, a45, -a45, a45, -a45], 0, refPoint)
131 salome.sg.updateObjBrowser(1)