def ViewPoint(self, pt, pt2): self.cam.SetProjectionType(1) self.cam.SetEye(pt) d = gp_Vec(pt, pt2) self.cam.SetCenter(pt2) if d.X() == 0 and d.Y() == 0: up = gp_Vec(gp_DY()) else: up = gp_Vec(gp_DZ()) self.cam.SetUp(gp_Dir(up)) self.cam.SetFOVy(60) self.View.MustBeResized()
def ViewDirection(self, pt, direction, fov=100): self.cam.SetProjectionType(1) self.cam.SetEye(pt) d = gp_Vec(direction) center = pt.Translated(d.Multiplied(1000)) if d.X() == 0 and d.Y() == 0: up = gp_Vec(gp_DZ()).Added(gp_Vec(gp_DY())) else: up = gp_Vec(gp_DZ()).Added(d) self.cam.SetCenter(center) self.cam.SetUp(gp_Dir(up)) self.cam.SetFOVy(fov) self.View.MustBeResized()
def round_tooth(wedge): round_x = 2.6 round_z = 0.06 * pitch round_radius = pitch # Determine where the circle used for rounding has to start and stop p2d_1 = gp_Pnt2d(top_radius - round_x, 0) p2d_2 = gp_Pnt2d(top_radius, round_z) # Construct the rounding circle round_circle = GccAna_Circ2d2TanRad(p2d_1, p2d_2, round_radius, 0.01) if (round_circle.NbSolutions() != 2): sys.exit(-2) round_circle_2d_1 = round_circle.ThisSolution(1) round_circle_2d_2 = round_circle.ThisSolution(2) if (round_circle_2d_1.Position().Location().Coord()[1] >= 0): round_circle_2d = round_circle_2d_1 else: round_circle_2d = round_circle_2d_2 # Remove the arc used for rounding trimmed_circle = GCE2d_MakeArcOfCircle(round_circle_2d, p2d_1, p2d_2).Value() # Calculate extra points used to construct lines p1 = gp_Pnt(p2d_1.X(), 0, p2d_1.Y()) p2 = gp_Pnt(p2d_2.X(), 0, p2d_2.Y()) p3 = gp_Pnt(p2d_2.X() + 1, 0, p2d_2.Y()) p4 = gp_Pnt(p2d_2.X() + 1, 0, p2d_1.Y() - 1) p5 = gp_Pnt(p2d_1.X(), 0, p2d_1.Y() - 1) # Convert the arc and four extra lines into 3D edges plane = gp_Pln(gp_Ax3(gp_Origin(), gp_DY().Reversed(), gp_DX())) arc1 = BRepBuilderAPI_MakeEdge(geomapi_To3d(trimmed_circle, plane)).Edge() lin1 = BRepBuilderAPI_MakeEdge(p2, p3).Edge() lin2 = BRepBuilderAPI_MakeEdge(p3, p4).Edge() lin3 = BRepBuilderAPI_MakeEdge(p4, p5).Edge() lin4 = BRepBuilderAPI_MakeEdge(p5, p1).Edge() # Make a wire composed of the edges round_wire = BRepBuilderAPI_MakeWire(arc1) round_wire.Add(lin1) round_wire.Add(lin2) round_wire.Add(lin3) round_wire.Add(lin4) # Turn the wire into a face round_face = BRepBuilderAPI_MakeFace(round_wire.Wire()).Shape() # Revolve the face around the Z axis over the tooth angle rounding_cut_1 = BRepPrimAPI_MakeRevol(round_face, gp_OZ(), tooth_angle).Shape() # Construct a mirrored copy of the first cutting shape mirror = gp_Trsf() mirror.SetMirror(gp_XOY()) mirrored_cut_1 = BRepBuilderAPI_Transform(rounding_cut_1, mirror, True).Shape() # and translate it so that it ends up on the other side of the wedge translate = gp_Trsf() translate.SetTranslation(gp_Vec(0, 0, thickness)) rounding_cut_2 = BRepBuilderAPI_Transform(mirrored_cut_1, translate, False).Shape() # Cut the wedge using the first and second cutting shape cut_1 = BRepAlgoAPI_Cut(wedge, rounding_cut_1).Shape() cut_2 = BRepAlgoAPI_Cut(cut_1, rounding_cut_2).Shape() return cut_2