def from_wire(cls, topo: Union[Topo, TopoDS_Shape], plane: Optional[gp_Pln] = None) -> TopoDS_Face: """ create face from compound of edges """ # if topo.number_of_wires() == 0: from .Construct import assert_isdone wire_builder = BRepBuilderAPI_MakeWire() if isinstance(topo, TopoDS_Shape): top = Topo(topo) else: top = topo for edge in top.edges(): wire_builder.Add(edge) with assert_isdone(wire_builder, 'wire'): wire_builder.Build() w = wire_builder.Wire() if plane is not None: bface = BRepBuilderAPI_MakeFace(plane) else: # todo - this doesnt work ---- _face = TopoDS_Face() bface = BRepBuilderAPI_MakeFace(_face) bface.Add(w) with assert_isdone(bface, 'face'): bface.Build() face = bface.Shape() return face
def brep_feat_local_revolution(event=None): S = BRepPrimAPI_MakeBox(400., 250., 300.).Shape() faces = list(Topo(S).faces()) F1 = faces[2] surf = BRep_Tool_Surface(F1) D = gp_OX() MW1 = BRepBuilderAPI_MakeWire() p1 = gp_Pnt2d(100., 100.) p2 = gp_Pnt2d(200., 100.) aline = GCE2d_MakeLine(p1, p2).Value() MW1.Add(BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)).Edge()) p1 = gp_Pnt2d(200., 100.) p2 = gp_Pnt2d(150., 200.) aline = GCE2d_MakeLine(p1, p2).Value() MW1.Add(BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)).Edge()) p1 = gp_Pnt2d(150., 200.) p2 = gp_Pnt2d(100., 100.) aline = GCE2d_MakeLine(p1, p2).Value() MW1.Add(BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)).Edge()) MKF1 = BRepBuilderAPI_MakeFace() MKF1.Init(surf, False, 1e-6) MKF1.Add(MW1.Wire()) FP = MKF1.Face() breplib_BuildCurves3d(FP) MKrev = BRepFeat_MakeRevol(S, FP, F1, D, 1, True) F2 = faces[4] MKrev.Perform(F2) display.EraseAll() display.DisplayShape(MKrev.Shape()) display.FitAll()
def extrusion(event=None): # Make a box Box = BRepPrimAPI_MakeBox(400., 250., 300.) S = Box.Shape() # Choose the first Face of the box F = next(Topo(S).faces()) surf = BRep_Tool_Surface(F) # Make a plane from this face Pl = Handle_Geom_Plane_DownCast(surf) Pln = Pl.GetObject() # Get the normal of this plane. This will be the direction of extrusion. D = Pln.Axis().Direction() # Inverse normal #D.Reverse() # Create the 2D planar sketch MW = BRepBuilderAPI_MakeWire() p1 = gp_Pnt2d(200., -100.) p2 = gp_Pnt2d(100., -100.) aline = GCE2d_MakeLine(p1, p2).Value() Edge1 = BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)) MW.Add(Edge1.Edge()) p1 = p2 p2 = gp_Pnt2d(100., -200.) aline = GCE2d_MakeLine(p1, p2).Value() Edge2 = BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)) MW.Add(Edge2.Edge()) p1 = p2 p2 = gp_Pnt2d(200., -200.) aline = GCE2d_MakeLine(p1, p2).Value() Edge3 = BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)) MW.Add(Edge3.Edge()) p1 = p2 p2 = gp_Pnt2d(200., -100.) aline = GCE2d_MakeLine(p1, p2).Value() Edge4 = BRepBuilderAPI_MakeEdge(aline, surf, 0., p1.Distance(p2)) MW.Add(Edge4.Edge()) # Build Face from Wire. NB: a face is required to generate a solid. MKF = BRepBuilderAPI_MakeFace() MKF.Init(surf, False, 1e-6) MKF.Add(MW.Wire()) FP = MKF.Face() breplib_BuildCurves3d(FP) MKP = BRepFeat_MakePrism(S, FP, F, D, False, True) MKP.Perform(200.) # TODO MKP completes, seeing a split operation but no extrusion assert MKP.IsDone() res1 = MKP.Shape() display.EraseAll() display.DisplayColoredShape(res1, 'BLUE') display.DisplayColoredShape(FP, 'YELLOW') display.FitAll()
def update_shape(self, change): wires = [c for c in self.children() if isinstance(c, OccShape)] for i, wire in enumerate(wires): if i == 0: shape = BRepBuilderAPI_MakeFace(wire.shape.Wire()) else: shape.Add(wire.shape.Wire()) self.shape = shape
def from_wires(cls, topo: List[TopoDS_Wire], plane: Optional[gp_Pln] = None) -> TopoDS_Face: """ create face from compound of edges """ # if topo.number_of_wires() == 0: wire = BRepBuilderAPI_MakeFace() for edge in topo: wire.Add(edge) wire.Build() w = wire.Face() return w
def add_wire_to_face(face, wire, reverse=False): """ apply a wire to a face use reverse to set the orientation of the wire to opposite @param face: @param wire: @param reverse: """ faceb = BRepBuilderAPI_MakeFace(face) if reverse: wire.Reverse() faceb.Add(wire) result = faceb.Face() faceb.Delete() return result
def makeFromWires(cls, outerWire, innerWires=[]): ''' Makes a planar face from one or more wires ''' face_builder = BRepBuilderAPI_MakeFace(outerWire.wrapped, True) # True is for planar only for w in innerWires: face_builder.Add(w.wrapped) face_builder.Build() f = face_builder.Face() sf = ShapeFix_Face(f) # fix wire orientation sf.FixOrientation() return cls(sf.Face())
def update_shape(self, change): d = self.declaration if d.wires: wires = d.wires else: wires = [c for c in self.children() if isinstance(c, OccShape)] if not wires: raise ValueError("No wires or children available to " "create a face!") for i, wire in enumerate(wires): if hasattr(wire, 'shape'): args = (wire.shape.Wire(), ) else: args = (wire, ) if i == 0: shape = BRepBuilderAPI_MakeFace(*args) else: shape.Add(*args) self.shape = shape
def from_topo_edges(cls, topo: Topo, plane: Optional[gp_Pln]=None) -> TopoDS_Face: """ create face from compound of edges """ # if topo.number_of_wires() == 0: wire = BRepBuilderAPI_MakeWire() for edge in topo.edges(): wire.Add(edge) wire.Build() w = wire.Wire() if plane is not None: bface = BRepBuilderAPI_MakeFace(plane) else: # todo - this doesnt work ---- _face = TopoDS_Face() bface = BRepBuilderAPI_MakeFace(_face) bface.Add(w) bface.Build() face = bface.Shape() return face
def brepfeat_prism(event=None): box = BRepPrimAPI_MakeBox(400, 250, 300).Shape() faces = Topo(box).faces() for i in range(3): face = next(faces) srf = BRep_Tool_Surface(face) c = gp_Circ2d(gp_Ax2d(gp_Pnt2d(200, 130), gp_Dir2d(1, 0)), 75) circle = Geom2d_Circle(c).GetHandle() wire = BRepBuilderAPI_MakeWire() wire.Add(BRepBuilderAPI_MakeEdge(circle, srf, 0., pi).Edge()) wire.Add(BRepBuilderAPI_MakeEdge(circle, srf, pi, 2. * pi).Edge()) wire.Build() display.DisplayShape(wire.Wire()) mkf = BRepBuilderAPI_MakeFace() mkf.Init(srf, False, 1e-6) mkf.Add(wire.Wire()) mkf.Build() new_face = mkf.Face() breplib_BuildCurves3d(new_face) display.DisplayColoredShape(box, 'GREEN') display.DisplayShape(new_face) """ prism = BRepFeat_MakeDPrism(box, mkf.Face(), face, 100, True, True) prism.Perform(400) assert prism.IsDone() display.EraseAll() display.DisplayShape(prism.Shape()) """ #display.DisplayColoredShape(wire.Wire(), 'RED') display.FitAll()
def write_face(self, points_face, list_points_edge, topo_face, toledge): """ Method to recreate a Face associated to a geometric surface after the modification of Face points. It returns a TopoDS_Face. :param points_face: the new face points array. :param list_points_edge: new edge points :param topo_face: the face to be modified :param toledge: tolerance on the surface creation after modification :return: TopoDS_Face (Shape) :rtype: TopoDS_Shape """ # convert Face to Geom B-spline Surface nurbs_converter = BRepBuilderAPI_NurbsConvert(topo_face) nurbs_converter.Perform(topo_face) nurbs_face = nurbs_converter.Shape() topo_nurbsface = topods.Face(nurbs_face) h_geomsurface = BRep_Tool.Surface(topo_nurbsface) h_bsurface = geomconvert_SurfaceToBSplineSurface(h_geomsurface) bsurface = h_bsurface.GetObject() nb_u = bsurface.NbUPoles() nb_v = bsurface.NbVPoles() # check consistency if points_face.shape[0] != nb_u * nb_v: raise ValueError("Input control points do not have not have the " "same number as the geometric face!") # cycle on the face points indice_cpt = 0 for iu in range(1, nb_u + 1): for iv in range(1, nb_v + 1): cpt = points_face[indice_cpt] bsurface.SetPole(iu, iv, gp_Pnt(cpt[0], cpt[1], cpt[2])) indice_cpt += 1 # create modified new face new_bspline_tface = BRepBuilderAPI_MakeFace() toler = precision_Confusion() new_bspline_tface.Init(bsurface.GetHandle(), False, toler) # cycle on the wires face_wires_explorer = TopExp_Explorer( topo_nurbsface.Oriented(TopAbs_FORWARD), TopAbs_WIRE) ind_edge_total = 0 while face_wires_explorer.More(): # get old wire twire = topods_Wire(face_wires_explorer.Current()) # cycle on the edges ind_edge = 0 wire_explorer_edge = TopExp_Explorer( twire.Oriented(TopAbs_FORWARD), TopAbs_EDGE) # check edges order on the wire mode3d = True tolerance_edges = toledge wire_order = ShapeAnalysis_WireOrder(mode3d, tolerance_edges) # an edge list deformed_edges = [] # cycle on the edges while wire_explorer_edge.More(): tedge = topods_Edge(wire_explorer_edge.Current()) new_bspline_tedge = self.write_edge( list_points_edge[ind_edge_total], tedge) deformed_edges.append(new_bspline_tedge) analyzer = topexp() vfirst = analyzer.FirstVertex(new_bspline_tedge) vlast = analyzer.LastVertex(new_bspline_tedge) pt1 = BRep_Tool.Pnt(vfirst) pt2 = BRep_Tool.Pnt(vlast) wire_order.Add(pt1.XYZ(), pt2.XYZ()) ind_edge += 1 ind_edge_total += 1 wire_explorer_edge.Next() # grouping the edges in a wire, then in the face # check edges order and connectivity within the wire wire_order.Perform() # new wire to be created stol = ShapeFix_ShapeTolerance() new_bspline_twire = BRepBuilderAPI_MakeWire() for order_i in range(1, wire_order.NbEdges() + 1): deformed_edge_i = wire_order.Ordered(order_i) if deformed_edge_i > 0: # insert the deformed edge to the new wire new_edge_toadd = deformed_edges[deformed_edge_i - 1] stol.SetTolerance(new_edge_toadd, toledge) new_bspline_twire.Add(new_edge_toadd) if new_bspline_twire.Error() != 0: stol.SetTolerance(new_edge_toadd, toledge * 10.0) new_bspline_twire.Add(new_edge_toadd) else: deformed_edge_revers = deformed_edges[ np.abs(deformed_edge_i) - 1] stol.SetTolerance(deformed_edge_revers, toledge) new_bspline_twire.Add(deformed_edge_revers) if new_bspline_twire.Error() != 0: stol.SetTolerance(deformed_edge_revers, toledge * 10.0) new_bspline_twire.Add(deformed_edge_revers) # add new wire to the Face new_bspline_tface.Add(new_bspline_twire.Wire()) face_wires_explorer.Next() return topods.Face(new_bspline_tface.Face())
def brep_feat_extrusion_protrusion(event=None): # Extrusion S = BRepPrimAPI_MakeBox(400., 250., 300.).Shape() faces = Topo(S).faces() F = next(faces) surf1 = BRep_Tool_Surface(F) Pl1 = Handle_Geom_Plane_DownCast(surf1).GetObject() D1 = Pl1.Pln().Axis().Direction().Reversed() MW = BRepBuilderAPI_MakeWire() p1, p2 = gp_Pnt2d(200., -100.), gp_Pnt2d(100., -100.) aline = GCE2d_MakeLine(p1, p2).Value() MW.Add(BRepBuilderAPI_MakeEdge(aline, surf1, 0., p1.Distance(p2)).Edge()) p1, p2 = gp_Pnt2d(100., -100.), gp_Pnt2d(100., -200.) aline = GCE2d_MakeLine(p1, p2).Value() MW.Add(BRepBuilderAPI_MakeEdge(aline, surf1, 0., p1.Distance(p2)).Edge()) p1, p2 = gp_Pnt2d(100., -200.), gp_Pnt2d(200., -200.) aline = GCE2d_MakeLine(p1, p2).Value() MW.Add(BRepBuilderAPI_MakeEdge(aline, surf1, 0., p1.Distance(p2)).Edge()) p1, p2 = gp_Pnt2d(200., -200.), gp_Pnt2d(200., -100.) aline = GCE2d_MakeLine(p1, p2).Value() MW.Add(BRepBuilderAPI_MakeEdge(aline, surf1, 0., p1.Distance(p2)).Edge()) MKF = BRepBuilderAPI_MakeFace() MKF.Init(surf1, False, 1e-6) MKF.Add(MW.Wire()) FP = MKF.Face() breplib_BuildCurves3d(FP) display.EraseAll() MKP = BRepFeat_MakePrism(S, FP, F, D1, 0, True) MKP.PerformThruAll() res1 = MKP.Shape() display.DisplayShape(res1) # Protrusion next(faces) F2 = next(faces) surf2 = BRep_Tool_Surface(F2) Pl2 = Handle_Geom_Plane_DownCast(surf2).GetObject() D2 = Pl2.Pln().Axis().Direction().Reversed() MW2 = BRepBuilderAPI_MakeWire() p1, p2 = gp_Pnt2d(100., 100.), gp_Pnt2d(200., 100.) aline = GCE2d_MakeLine(p1, p2).Value() MW2.Add(BRepBuilderAPI_MakeEdge(aline, surf2, 0., p1.Distance(p2)).Edge()) p1, p2 = gp_Pnt2d(200., 100.), gp_Pnt2d(150., 200.) aline = GCE2d_MakeLine(p1, p2).Value() MW2.Add(BRepBuilderAPI_MakeEdge(aline, surf2, 0., p1.Distance(p2)).Edge()) p1, p2 = gp_Pnt2d(150., 200.), gp_Pnt2d(100., 100.) aline = GCE2d_MakeLine(p1, p2).Value() MW2.Add(BRepBuilderAPI_MakeEdge(aline, surf2, 0., p1.Distance(p2)).Edge()) MKF2 = BRepBuilderAPI_MakeFace() MKF2.Init(surf2, False, 1e-6) MKF2.Add(MW2.Wire()) MKF2.Build() FP = MKF2.Face() breplib_BuildCurves3d(FP) MKP2 = BRepFeat_MakePrism(res1, FP, F2, D2, 0, True) MKP2.PerformThruAll() display.EraseAll() trf = gp_Trsf() trf.SetTranslation(gp_Vec(0, 0, 300)) gtrf = gp_GTrsf() gtrf.SetTrsf(trf) tr = BRepBuilderAPI_GTransform(MKP2.Shape(), gtrf, True) fused = BRepAlgoAPI_Fuse(tr.Shape(), MKP2.Shape()) fused.RefineEdges() fused.Build() print('Boolean operation error status:', fused.ErrorStatus()) display.DisplayShape(fused.Shape()) display.FitAll()