# Extrusion along a Path import math import salome salome.salome_init_without_session() import GEOM from salome.geom import geomBuilder geompy = geomBuilder.New() import SMESH, SALOMEDS from salome.smesh import smeshBuilder smesh = smeshBuilder.New() # 1. Create points points = [[0, 0], [50, 30], [50, 110], [0, 150], [-80, 150], [-130, 70], [-130, -20]] iv = 1 vertices = [] for point in points: vert = geompy.MakeVertex(point[0], point[1], 0) #geompy.addToStudy(vert, "Vertex_" + repr(iv)) vertices.append(vert) iv += 1 pass # 2. Create edges and wires Edge_straight = geompy.MakeEdge(vertices[0], vertices[4]) Edge_bezierrr = geompy.MakeBezier(vertices) Wire_polyline = geompy.MakePolyline(vertices) Edge_Circle = geompy.MakeCircleThreePnt(vertices[0], vertices[1], vertices[2]) geompy.addToStudy(Edge_straight, "Edge_straight") geompy.addToStudy(Edge_bezierrr, "Edge_bezierrr") geompy.addToStudy(Wire_polyline, "Wire_polyline") geompy.addToStudy(Edge_Circle , "Edge_Circle") # 3. Explode wire on edges, as they will be used for mesh extrusion Wire_polyline_edges = geompy.SubShapeAll(Wire_polyline, geompy.ShapeType["EDGE"]) for ii in range(len(Wire_polyline_edges)): geompy.addToStudyInFather(Wire_polyline, Wire_polyline_edges[ii], "Edge_" + repr(ii + 1)) pass # Mesh # Mesh the given shape with the given 1d hypothesis def Mesh1D(shape1d, nbSeg, name, smesh_builder): mesh1d_tool = smesh_builder.Mesh(shape1d, name) algo = mesh1d_tool.Segment() hyp = algo.NumberOfSegments(nbSeg) isDone = mesh1d_tool.Compute() if not isDone: print('Mesh ', name, ': computation failed') return mesh1d_tool # Create a mesh with six nodes, seven edges and two quadrangle faces def MakeQuadMesh2(mesh_name, smesh_builder): quad_1 = smesh_builder.Mesh(name = mesh_name) # six nodes n1 = quad_1.AddNode(0, 20, 10) n2 = quad_1.AddNode(0, 40, 10) n3 = quad_1.AddNode(0, 40, 30) n4 = quad_1.AddNode(0, 20, 30) n5 = quad_1.AddNode(0, 0, 30) n6 = quad_1.AddNode(0, 0, 10) # seven edges quad_1.AddEdge([n1, n2]) # 1 quad_1.AddEdge([n2, n3]) # 2 quad_1.AddEdge([n3, n4]) # 3 quad_1.AddEdge([n4, n1]) # 4 quad_1.AddEdge([n4, n5]) # 5 quad_1.AddEdge([n5, n6]) # 6 quad_1.AddEdge([n6, n1]) # 7 # two quadrangle faces quad_1.AddFace([n1, n2, n3, n4]) # 8 quad_1.AddFace([n1, n4, n5, n6]) # 9 return [quad_1, [1,2,3,4,5,6,7], [8,9]] # Path meshes Edge_straight_mesh = Mesh1D(Edge_straight, 7, "Edge_straight", smesh_builder=smesh) Edge_bezierrr_mesh = Mesh1D(Edge_bezierrr, 7, "Edge_bezierrr", smesh_builder=smesh) Wire_polyline_mesh = Mesh1D(Wire_polyline, 3, "Wire_polyline", smesh_builder=smesh) Edge_Circle_mesh = Mesh1D(Edge_Circle , 8, "Edge_Circle" , smesh_builder=smesh) # Initial meshes (to be extruded) [quad_1, ee_1, ff_1] = MakeQuadMesh2("quad_1", smesh_builder=smesh) [quad_2, ee_2, ff_2] = MakeQuadMesh2("quad_2", smesh_builder=smesh) [quad_3, ee_3, ff_3] = MakeQuadMesh2("quad_3", smesh_builder=smesh) [quad_4, ee_4, ff_4] = MakeQuadMesh2("quad_4", smesh_builder=smesh) [quad_5, ee_5, ff_5] = MakeQuadMesh2("quad_5", smesh_builder=smesh) [quad_6, ee_6, ff_6] = MakeQuadMesh2("quad_6", smesh_builder=smesh) [quad_7, ee_7, ff_7] = MakeQuadMesh2("quad_7", smesh_builder=smesh) # ExtrusionAlongPath # IDsOfElements, PathMesh, PathShape, NodeStart, # HasAngles, Angles, HasRefPoint, RefPoint refPoint = SMESH.PointStruct(0, 0, 0) a10 = math.radians( 10.0 ) a45 = math.radians( 45.0 ) # 1. Extrusion of two mesh edges along a straight path error = quad_1.ExtrusionAlongPath([1,2], Edge_straight_mesh, Edge_straight, 1, 0, [], 0, refPoint) # 2. Extrusion of one mesh edge along a curved path error = quad_2.ExtrusionAlongPath([2], Edge_bezierrr_mesh, Edge_bezierrr, 1, 0, [], 0, refPoint) # 3. Extrusion of one mesh edge along a curved path with usage of angles error = quad_3.ExtrusionAlongPath([2], Edge_bezierrr_mesh, Edge_bezierrr, 1, 1, [a45, a45, a45, 0, -a45, -a45, -a45], 0, refPoint) # 4. Extrusion of one mesh edge along the path, which is a part of a meshed wire error = quad_4.ExtrusionAlongPath([4], Wire_polyline_mesh, Wire_polyline_edges[0], 1, 1, [a10, a10, a10], 0, refPoint) # 5. Extrusion of two mesh faces along the path, which is a part of a meshed wire error = quad_5.ExtrusionAlongPath(ff_5 , Wire_polyline_mesh, Wire_polyline_edges[2], 4, 0, [], 0, refPoint) # 6. Extrusion of two mesh faces along a closed path error = quad_6.ExtrusionAlongPath(ff_6 , Edge_Circle_mesh, Edge_Circle, 1, 0, [], 0, refPoint) # 7. Extrusion of two mesh faces along a closed path with usage of angles error = quad_7.ExtrusionAlongPath(ff_7, Edge_Circle_mesh, Edge_Circle, 1, 1, [a45, -a45, a45, -a45, a45, -a45, a45, -a45], 0, refPoint) # Make the same meshes using a fully functional method ExtrusionAlongPathObjects() having # the following arguments: # Nodes, Edges, Faces, PathObject, PathShape=None, # NodeStart=1, HasAngles=False, Angles=[], LinearVariation=False, # HasRefPoint=False, RefPoint=[0,0,0], MakeGroups=False, # ScaleFactors=[], ScalesVariation=False quad_1 = MakeQuadMesh2("quad_1", smesh_builder=smesh)[0] quad_2 = MakeQuadMesh2("quad_2", smesh_builder=smesh)[0] quad_3 = MakeQuadMesh2("quad_3", smesh_builder=smesh)[0] quad_4 = MakeQuadMesh2("quad_4", smesh_builder=smesh)[0] quad_5 = MakeQuadMesh2("quad_5", smesh_builder=smesh)[0] quad_6 = MakeQuadMesh2("quad_6", smesh_builder=smesh)[0] quad_7 = MakeQuadMesh2("quad_7", smesh_builder=smesh)[0] # 1. Extrusion of two mesh edges along a straight path nn, ee, ff = [], [1,2], [] error = quad_1.ExtrusionAlongPathObjects( nn, ee, ff, Edge_straight_mesh ) # 2. Extrusion of one mesh edge along a curved path nn, ee, ff = [], [2], [] error = quad_2.ExtrusionAlongPathObjects( nn, ee, ff, Edge_bezierrr_mesh ) # 3. Extrusion of one mesh edge along a curved path with usage of angles error = quad_3.ExtrusionAlongPathObjects( nn, ee, ff, Edge_bezierrr_mesh, Angles=[a45, a45, a45, 0, -a45, -a45, -a45]) # 4. Extrusion of one mesh edge along the path, which is a part of a meshed wire nn, ee, ff = [], [4], [] error = quad_4.ExtrusionAlongPathObjects( nn, ee, ff, Wire_polyline_mesh, Wire_polyline_edges[0], Angles=[a10, a10, a10]) # 5. Extrusion of two mesh faces along the path, which is a part of a meshed wire nn, ee, ff = [], [], quad_5 error = quad_5.ExtrusionAlongPathObjects( nn, ee, ff, Wire_polyline_mesh, Wire_polyline_edges[2], NodeStart=4 ) # 6. Extrusion of two mesh faces along a closed path nn, ee, ff = [], [], quad_6 error = quad_6.ExtrusionAlongPathObjects( nn, ee, ff, Edge_Circle_mesh ) # 7. Extrusion of two mesh faces along a closed path with usage of angles nn, ee, ff = [], [], quad_7 error = quad_7.ExtrusionAlongPathObjects( nn, ee, ff, Edge_Circle_mesh, Edge_Circle, Angles=[a45, -a45, a45, -a45, a45, -a45, a45, -a45]) salome.sg.updateObjBrowser()