1 // Created on: 1998-07-22
2 // Created by: Philippe MANGIN
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
18 #include <BRep_Builder.hxx>
19 #include <BRep_Tool.hxx>
20 #include <BRepAdaptor_CompCurve.hxx>
21 #include <BRepBuilderAPI_Copy.hxx>
22 #include <BRepBuilderAPI_Transform.hxx>
23 #include <BRepClass3d_SolidClassifier.hxx>
24 #include <BRepFill.hxx>
25 #include <BRepFill_ACRLaw.hxx>
26 #include <BRepFill_CompatibleWires.hxx>
27 #include <BRepFill_DataMapOfShapeHArray2OfShape.hxx>
28 #include <BRepFill_Edge3DLaw.hxx>
29 #include <BRepFill_EdgeOnSurfLaw.hxx>
30 #include <BRepFill_LocationLaw.hxx>
31 #include <BRepFill_NSections.hxx>
32 #include <BRepFill_PipeShell.hxx>
33 #include <BRepFill_Section.hxx>
34 #include <BRepFill_SectionLaw.hxx>
35 #include <BRepFill_SectionPlacement.hxx>
36 #include <BRepFill_ShapeLaw.hxx>
37 #include <BRepFill_Sweep.hxx>
38 #include <BRepGProp.hxx>
39 #include <BRepLib_MakeEdge.hxx>
40 #include <BRepLib_MakeFace.hxx>
41 #include <GeomAdaptor_Curve.hxx>
42 #include <GeomAdaptor_Surface.hxx>
43 #include <GeomFill_ConstantBiNormal.hxx>
44 #include <GeomFill_CorrectedFrenet.hxx>
45 #include <GeomFill_CurveAndTrihedron.hxx>
46 #include <GeomFill_DiscreteTrihedron.hxx>
47 #include <GeomFill_Fixed.hxx>
48 #include <GeomFill_Frenet.hxx>
49 #include <GeomFill_GuideTrihedronAC.hxx>
50 #include <GeomFill_GuideTrihedronPlan.hxx>
51 #include <GeomFill_LocationGuide.hxx>
52 #include <GeomFill_SectionLaw.hxx>
53 #include <GeomFill_TrihedronLaw.hxx>
56 #include <gp_Trsf.hxx>
58 #include <GProp_GProps.hxx>
59 #include <IntCurveSurface_HInter.hxx>
60 #include <IntCurveSurface_IntersectionPoint.hxx>
61 #include <Law_Function.hxx>
62 #include <Law_Interpol.hxx>
63 #include <Precision.hxx>
64 #include <Standard_ConstructionError.hxx>
65 #include <Standard_DomainError.hxx>
66 #include <Standard_NotImplemented.hxx>
67 #include <Standard_Type.hxx>
68 #include <StdFail_NotDone.hxx>
69 #include <TColgp_HArray1OfPnt2d.hxx>
70 #include <TColStd_HArray1OfReal.hxx>
71 #include <TColStd_SequenceOfInteger.hxx>
73 #include <TopLoc_Location.hxx>
75 #include <TopoDS_Iterator.hxx>
76 #include <TopoDS_Shape.hxx>
77 #include <TopoDS_Shell.hxx>
78 #include <TopoDS_Solid.hxx>
79 #include <TopoDS_Vertex.hxx>
80 #include <TopoDS_Wire.hxx>
81 #include <TopTools_SequenceOfShape.hxx>
84 IMPLEMENT_STANDARD_RTTIEXT(BRepFill_PipeShell,Standard_Transient)
89 #include <DrawTrSurf.hxx>
91 static Standard_Boolean Affich = 0;
94 #include <TopTools_ListIteratorOfListOfShape.hxx>
95 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
96 #include <TopTools_DataMapOfIntegerShape.hxx>
97 #include <TopoDS_Compound.hxx>
100 static Standard_Boolean BuildBoundaries(const BRepFill_Sweep& theSweep,
101 const Handle(BRepFill_SectionLaw)& theSection,
102 TopoDS_Shape& theBottom,
103 TopoDS_Shape& theTop);
105 //=======================================================================
106 //function : ComputeSection
107 //purpose : Construct an intermediary section
108 //=======================================================================
110 static Standard_Boolean ComputeSection(const TopoDS_Wire& W1,
111 const TopoDS_Wire& W2,
112 const Standard_Real p1,
113 const Standard_Real p2,
116 TColStd_SequenceOfReal SR;
117 TopTools_SequenceOfShape SSh;
124 BRepFill_CompatibleWires CW(SSh);
127 if (!CW.IsDone()) throw StdFail_NotDone("Uncompatible wires");
128 GeomFill_SequenceOfTrsf EmptyTrsfs;
129 Handle(BRepFill_NSections) SL = new (BRepFill_NSections) (CW.Shape(),EmptyTrsfs,SR,0.,1.);
130 Standard_Real US = p1/(p1+p2);
132 return Standard_True;
137 //=======================================================================
138 //function : PerformTransition
139 //purpose : Modify a law of location depending on Transition
140 //=======================================================================
142 static void PerformTransition(const BRepFill_TransitionStyle Mode,
143 Handle(BRepFill_LocationLaw)& Loc,
144 const Standard_Real angmin)
147 Loc->DeleteTransform();
148 if (Mode == BRepFill_Modified) Loc->TransformInG0Law();
149 else Loc->TransformInCompatibleLaw(angmin);
152 //=======================================================================
153 //function : PerformPlan
154 //purpose : Construct a plane of filling if exists
155 //=======================================================================
157 static Standard_Boolean PerformPlan(TopoDS_Shape& S)
159 Standard_Boolean isDegen = Standard_True;
160 TopExp_Explorer explo(S, TopAbs_EDGE);
161 for (; explo.More(); explo.Next())
163 const TopoDS_Edge& anEdge = TopoDS::Edge(explo.Current());
164 if (!BRep_Tool::Degenerated(anEdge))
165 isDegen = Standard_False;
170 return Standard_True;
173 TopoDS_Wire W = TopoDS::Wire(S);
174 Standard_Boolean Ok = Standard_False;
176 BRepLib_MakeFace mkplan(W, Standard_True);
177 if (mkplan.IsDone()) {
185 //=============================================================================
186 //function : IsSameOriented
187 //purpose : Checks whether aFace is oriented to the same side as aShell or not
188 //=============================================================================
190 static Standard_Boolean IsSameOriented(const TopoDS_Shape& aFace,
191 const TopoDS_Shape& aShell)
193 TopExp_Explorer Explo(aFace, TopAbs_EDGE);
194 TopoDS_Shape anEdge = Explo.Current();
195 TopAbs_Orientation Or1 = anEdge.Orientation();
197 TopTools_IndexedDataMapOfShapeListOfShape EFmap;
198 TopExp::MapShapesAndAncestors( aShell, TopAbs_EDGE, TopAbs_FACE, EFmap );
200 const TopoDS_Shape& AdjacentFace = EFmap.FindFromKey(anEdge).First();
201 TopoDS_Shape theEdge;
202 for (Explo.Init(AdjacentFace, TopAbs_EDGE); Explo.More(); Explo.Next())
204 theEdge = Explo.Current();
205 if (theEdge.IsSame(anEdge))
209 TopAbs_Orientation Or2 = theEdge.Orientation();
211 return Standard_False;
212 return Standard_True;
214 //=======================================================================
215 //function : BRepFill_PipeShell
217 //=======================================================================
218 BRepFill_PipeShell::BRepFill_PipeShell(const TopoDS_Wire& Spine)
220 myForceApproxC1(Standard_False),
221 myIsAutomaticLaw(Standard_False),
222 myTrihedron(GeomFill_IsCorrectedFrenet),
223 myTransition(BRepFill_Modified),
224 myStatus(GeomFill_PipeOk)
226 myLocation.Nullify();
234 // Attention to closed non-declared wire !
235 if (!mySpine.Closed()) {
236 TopoDS_Vertex Vf, Vl;
237 TopExp::Vertices(mySpine, Vf, Vl);
238 if (Vf.IsSame(Vl)) mySpine.Closed(Standard_True);
242 //=======================================================================
244 //purpose : Define a law of Frenet (Correct)
245 //=======================================================================
246 void BRepFill_PipeShell::Set(const Standard_Boolean IsFrenet)
248 Handle(GeomFill_TrihedronLaw) TLaw;
250 myTrihedron = GeomFill_IsFrenet;
251 TLaw = new (GeomFill_Frenet) ();
254 myTrihedron = GeomFill_IsFrenet;
255 TLaw = new (GeomFill_CorrectedFrenet) ();
257 Handle(GeomFill_CurveAndTrihedron) Loc =
258 new (GeomFill_CurveAndTrihedron) (TLaw);
259 myLocation = new (BRepFill_Edge3DLaw) (mySpine, Loc);
260 mySection.Nullify(); //It is required to relocalize sections.
263 //=======================================================================
264 //function : SetDiscrete
265 //purpose : Define a law of Discrete Trihedron
266 //=======================================================================
267 void BRepFill_PipeShell::SetDiscrete()
269 Handle(GeomFill_TrihedronLaw) TLaw;
271 myTrihedron = GeomFill_IsDiscreteTrihedron;
272 TLaw = new (GeomFill_DiscreteTrihedron) ();
274 Handle(GeomFill_CurveAndTrihedron) Loc =
275 new (GeomFill_CurveAndTrihedron) (TLaw);
276 myLocation = new (BRepFill_Edge3DLaw) (mySpine, Loc);
277 mySection.Nullify(); //It is required to relocalize sections.
280 //=======================================================================
282 //purpose : Define a law Constant
283 //=======================================================================
284 void BRepFill_PipeShell::Set(const gp_Ax2& Axe)
286 myTrihedron = GeomFill_IsFixed;
288 V1.SetXYZ(Axe.Direction().XYZ());
289 V2.SetXYZ(Axe.XDirection().XYZ());
290 Handle(GeomFill_Fixed) TLaw = new (GeomFill_Fixed) (V1, V2);
291 Handle(GeomFill_CurveAndTrihedron) Loc =
292 new (GeomFill_CurveAndTrihedron) (TLaw);
293 myLocation = new (BRepFill_Edge3DLaw) (mySpine, Loc);
294 mySection.Nullify(); //It is required to relocalize sections.
297 //=======================================================================
299 //purpose : Construct a law of location of binormal fixed type
300 //=======================================================================
301 void BRepFill_PipeShell::Set(const gp_Dir& BiNormal)
303 myTrihedron = GeomFill_IsConstantNormal;
305 Handle(GeomFill_ConstantBiNormal) TLaw =
306 new (GeomFill_ConstantBiNormal) (BiNormal);
307 Handle(GeomFill_CurveAndTrihedron) Loc =
308 new (GeomFill_CurveAndTrihedron) (TLaw);
309 myLocation = new (BRepFill_Edge3DLaw) (mySpine, Loc);
310 mySection.Nullify(); //Il faut relocaliser les sections.
313 //=======================================================================
315 //purpose : Construct a law of location of Darboux type
316 //=======================================================================
317 Standard_Boolean BRepFill_PipeShell::Set(const TopoDS_Shape& SpineSupport)
321 // A special law of location is required
322 Handle(BRepFill_EdgeOnSurfLaw) loc =
323 new (BRepFill_EdgeOnSurfLaw) (mySpine, SpineSupport);
324 B = loc->HasResult();
327 myTrihedron = GeomFill_IsDarboux;
328 mySection.Nullify(); //It is required to relocalize the sections.
333 //=======================================================================
335 //purpose : Defines a lawv with help of a guided contour
336 //=======================================================================
337 void BRepFill_PipeShell::Set(const TopoDS_Wire& AuxiliarySpine,
338 const Standard_Boolean CurvilinearEquivalence,
339 const BRepFill_TypeOfContact KeepContact)
341 // Reorganization of the guide (pb of orientation and origin)
342 TopoDS_Wire TheGuide;
343 TheGuide = AuxiliarySpine;
344 Standard_Boolean SpClose = mySpine.Closed(),
345 GuideClose = AuxiliarySpine.Closed();
347 if (KeepContact == BRepFill_ContactOnBorder)
348 myIsAutomaticLaw = Standard_True;
350 if (!SpClose && !GuideClose) {
351 // Case open reorientation of the guide
352 TopoDS_Wire sp = mySpine;
353 TopTools_SequenceOfShape Seq;
355 Seq.Append(TheGuide);
356 BRepFill_CompatibleWires CW(Seq);
359 if (!CW.IsDone()) throw StdFail_NotDone("Uncompatible wires");
360 TheGuide = TopoDS::Wire(CW.Shape().Value(2));
362 else if (GuideClose) {
363 // Case guide closed : Determination of the origin
364 // & reorientation of the guide
368 TopoDS_Vertex Vf, Vl;
370 TopExp::Vertices(mySpine, Vf, Vl);
371 SpOr = BRep_Tool::Pnt(Vf);
372 P = BRep_Tool::Pnt(Vl);
374 SpOr.BaryCenter(0.5, P, 0.5);
378 BRepAdaptor_CompCurve BC(mySpine);
381 BRepFill::SearchOrigin(TheGuide, SpOr, Dir, 100*myTol3d);
386 DBRep::Set("theguide", TheGuide);
388 // transform the guide in a single curve
389 Handle(BRepAdaptor_CompCurve) Guide = new (BRepAdaptor_CompCurve) (TheGuide);
391 if (CurvilinearEquivalence) { // trihedron by curvilinear reduced abscissa
392 if (KeepContact == BRepFill_Contact ||
393 KeepContact == BRepFill_ContactOnBorder)
394 myTrihedron = GeomFill_IsGuideACWithContact; // with rotation
396 myTrihedron = GeomFill_IsGuideAC; // without rotation
398 Handle(GeomFill_GuideTrihedronAC) TLaw
399 = new (GeomFill_GuideTrihedronAC) (Guide);
400 Handle(GeomFill_LocationGuide) Loc =
401 new (GeomFill_LocationGuide) (TLaw);
402 myLocation = new (BRepFill_ACRLaw) (mySpine, Loc);
404 else {// trihedron by plane
405 if (KeepContact == BRepFill_Contact ||
406 KeepContact == BRepFill_ContactOnBorder)
407 myTrihedron = GeomFill_IsGuidePlanWithContact; // with rotation
409 myTrihedron = GeomFill_IsGuidePlan; // without rotation
411 Handle(GeomFill_GuideTrihedronPlan) TLaw =
412 new (GeomFill_GuideTrihedronPlan) (Guide);
413 Handle(GeomFill_LocationGuide) Loc =
414 new (GeomFill_LocationGuide) (TLaw);
415 myLocation = new (BRepFill_Edge3DLaw) (mySpine, Loc);
417 mySection.Nullify(); //It is required to relocalize the sections.
421 //=======================================================================
422 //function : SetMaxDegree
424 //=======================================================================
425 void BRepFill_PipeShell::SetMaxDegree(const Standard_Integer NewMaxDegree)
427 myMaxDegree = NewMaxDegree;
430 //=======================================================================
431 //function : SetMaxSegments
433 //=======================================================================
434 void BRepFill_PipeShell::SetMaxSegments(const Standard_Integer NewMaxSegments)
436 myMaxSegments = NewMaxSegments;
439 //=======================================================================
440 //function : SetForceApproxC1
441 //purpose : Set the flag that indicates attempt to approximate
442 // a C1-continuous surface if a swept surface proved
444 //=======================================================================
445 void BRepFill_PipeShell::SetForceApproxC1(const Standard_Boolean ForceApproxC1)
447 myForceApproxC1 = ForceApproxC1;
450 //=======================================================================
452 //purpose : Add a Section
453 //=======================================================================
454 void BRepFill_PipeShell::Add(const TopoDS_Shape& Profile,
455 const Standard_Boolean WithContact,
456 const Standard_Boolean WithCorrection)
460 Add(Profile, V, WithContact, WithCorrection);
464 //=======================================================================
466 //purpose : Add a Section
467 //=======================================================================
468 void BRepFill_PipeShell::Add(const TopoDS_Shape& Profile,
469 const TopoDS_Vertex& Location,
470 const Standard_Boolean WithContact,
471 const Standard_Boolean WithCorrection)
473 DeleteProfile(Profile); // No duplication
474 if (myIsAutomaticLaw)
477 BRepFill_Section S (Profile, Location, WithContact, WithCorrection);
478 S.Set(Standard_True);
483 Handle(GeomFill_LocationGuide) Loc = Handle(GeomFill_LocationGuide)::DownCast(myLocation->Law(1));
484 Handle(TColgp_HArray1OfPnt2d) ParAndRad;
485 Loc->ComputeAutomaticLaw(ParAndRad);
487 //Compuite initial width of section (this will be 1.)
488 GProp_GProps GlobalProps;
489 BRepGProp::LinearProperties(Profile, GlobalProps);
490 gp_Pnt BaryCenter = GlobalProps.CentreOfMass();
492 TopoDS_Face ProfileFace = BRepLib_MakeFace(TopoDS::Wire(Profile), Standard_True); //only plane
493 Handle(Geom_Surface) thePlane = BRep_Tool::Surface(ProfileFace);
494 Handle(GeomAdaptor_Surface) GAHplane = new GeomAdaptor_Surface(thePlane);
495 IntCurveSurface_HInter Intersector;
496 Handle(Adaptor3d_Curve) aHCurve [2];
497 aHCurve[0] = Loc->GetCurve();
498 aHCurve[1] = Loc->Guide();
499 gp_Pnt PointsOnSpines [2];
500 Standard_Integer i, j;
502 for (i = 0; i < 2; i++)
504 Intersector.Perform(aHCurve[i], GAHplane);
505 Standard_Real MinDist = RealLast();
506 for (j = 1; j <= Intersector.NbPoints(); j++)
508 gp_Pnt aPint = Intersector.Point(j).Pnt();
509 Standard_Real aDist = BaryCenter.Distance(aPint);
513 PointsOnSpines[i] = aPint;
518 //Correct <ParAndRad> according to <InitialWidth>
519 Standard_Real InitialWidth = PointsOnSpines[0].Distance(PointsOnSpines[1]);
520 Standard_Integer NbParRad = ParAndRad->Upper();
521 for (i = 1; i <= NbParRad; i++)
523 gp_Pnt2d aParRad = ParAndRad->Value(i);
524 aParRad.SetY( aParRad.Y() / InitialWidth );
525 ParAndRad->SetValue(i, aParRad);
528 myLaw = new Law_Interpol();
530 Standard_Boolean IsPeriodic =
531 (Abs(ParAndRad->Value(1).Y() - ParAndRad->Value(NbParRad).Y()) < Precision::Confusion());
533 (Handle(Law_Interpol)::DownCast(myLaw))->Set(ParAndRad->Array1(), IsPeriodic);
537 BRepFill_Section S (Profile, Location, WithContact, WithCorrection);
544 //=======================================================================
546 //purpose : Section + law of homothety
547 //=======================================================================
548 void BRepFill_PipeShell::SetLaw(const TopoDS_Shape& Profile,
549 const Handle(Law_Function)& L,
550 const Standard_Boolean WithContact,
551 const Standard_Boolean WithCorrection)
555 SetLaw( Profile, L, V, WithContact, WithCorrection);
559 //=======================================================================
561 //purpose : Section + Law of homothety
562 //=======================================================================
563 void BRepFill_PipeShell::SetLaw(const TopoDS_Shape& Profile,
564 const Handle(Law_Function)& L,
565 const TopoDS_Vertex& Location,
566 const Standard_Boolean WithContact,
567 const Standard_Boolean WithCorrection)
570 BRepFill_Section S (Profile, Location, WithContact, WithCorrection);
571 S.Set(Standard_True);
578 //=======================================================================
580 //purpose : Delete a section
581 //=======================================================================
582 void BRepFill_PipeShell::DeleteProfile(const TopoDS_Shape& Profile)
584 Standard_Boolean Trouve=Standard_False;
586 for (ii=1; ii<=mySeq.Length() && !Trouve; ii++) {
587 const TopoDS_Shape& aSection = mySeq.Value(ii).OriginalShape();
588 if (Profile.IsSame(aSection))
590 Trouve = Standard_True;
595 if (Trouve) mySection.Nullify();
600 //=======================================================================
603 //=======================================================================
604 Standard_Boolean BRepFill_PipeShell::IsReady() const
606 return (mySeq.Length() != 0);
608 //=======================================================================
609 //function : GetStatus
611 //=======================================================================
612 GeomFill_PipeError BRepFill_PipeShell::GetStatus() const
618 //=======================================================================
619 //function : SetTolerance
621 //=======================================================================
622 void BRepFill_PipeShell::SetTolerance(const Standard_Real Tol3d ,
623 const Standard_Real BoundTol,
624 const Standard_Real TolAngular)
627 myBoundTol = BoundTol;
628 myTolAngular = TolAngular;
631 //=======================================================================
632 //function : SetTransition
633 //purpose : Defines the mode of processing of corners
634 //=======================================================================
635 void BRepFill_PipeShell::SetTransition(const BRepFill_TransitionStyle Mode,
636 const Standard_Real Angmin,
637 const Standard_Real Angmax)
639 if (myTransition != Mode)
640 mySection.Nullify(); //It is required to relocalize the sections.
646 //=======================================================================
647 //function : Simulate
648 //purpose : Calculate N Sections
649 //=======================================================================
650 void BRepFill_PipeShell::Simulate(const Standard_Integer N,
651 TopTools_ListOfShape& List)
657 Standard_Real First, Last, Length, Delta, U,
659 Standard_Integer ii, NbL = myLocation->NbLaw();
660 Standard_Boolean Finis=Standard_False;
663 // Calculate the parameters of digitalization
664 mySection->Law(1)->GetDomain(FirstS, Last);
665 DeltaS = Last - FirstS;
666 myLocation->CurvilinearBounds(NbL,First, Length);
668 if (N>1) Delta /= (N-1);
670 myLocation->CurvilinearBounds(1,First, Last); // Initiation of Last
671 for (U=0.0, ii=1; !Finis ; U+=Delta) {
674 Finis = Standard_True;
677 if (ii < NbL) myLocation->CurvilinearBounds(NbL,First, Last);
678 if (U > Last) U = (Last+First)/2; // The edge is not skipped
681 US = FirstS + (U/Length)*DeltaS;
682 // Calcul d'une section
683 mySection->D0(US, W);
684 myLocation->D0(U, W);
689 //=======================================================================
691 //purpose : Construct the Shell and the history
692 //=======================================================================
693 Standard_Boolean BRepFill_PipeShell::Build()
696 Standard_Real FirstS, LastS;
700 if (myStatus != GeomFill_PipeOk) {
704 myShape = Sh; // Nullify
705 return Standard_False;
708 // 2) Calculate myFirst and myLast
709 mySection->Law(1)->GetDomain(FirstS, LastS);
710 mySection->D0(FirstS, myFirst);
711 myLocation->D0(0, myFirst);
712 if (mySection->IsVClosed() && myLocation->IsClosed()) {
713 if (myLocation->IsG1(0)>=0)
721 Standard_Real Length;
722 myLocation->CurvilinearBounds(myLocation->NbLaw(),
724 mySection->D0(LastS, myLast);
725 myLocation->D0(Length, myLast);
726 // eap 5 Jun 2002 occ332, myLast and myFirst must not share one TShape,
727 // tolerances of shapes built on them may be quite different
728 if (myFirst.IsPartner( myLast )) {
729 BRepBuilderAPI_Copy copy(myLast);
731 myLast = copy.Shape();
733 // eap 5 Jun 2002 occ332, end modif
737 DBRep::Set("PipeFirst", myFirst);
738 DBRep::Set("PipeLast", myLast);
743 BRepFill_Sweep MkSw(mySection, myLocation, Standard_True);
744 MkSw.SetTolerance(myTol3d, myBoundTol, 1.e-5, myTolAngular);
745 MkSw.SetAngularControl(angmin, angmax);
746 MkSw.SetForceApproxC1(myForceApproxC1);
747 MkSw.SetBounds(TopoDS::Wire(myFirst),
748 TopoDS::Wire(myLast));
750 GeomAbs_Shape theContinuity = GeomAbs_C2;
751 if (myTrihedron == GeomFill_IsDiscreteTrihedron)
752 theContinuity = GeomAbs_C0;
753 TopTools_MapOfShape Dummy;
754 BRepFill_DataMapOfShapeHArray2OfShape Dummy2;
755 BRepFill_DataMapOfShapeHArray2OfShape Dummy3;
756 MkSw.Build(Dummy, Dummy2, Dummy3, myTransition, theContinuity,
757 GeomFill_Location, myMaxDegree, myMaxSegments);
759 myStatus = myLocation->GetStatus();
760 Ok = (MkSw.IsDone() && (myStatus == GeomFill_PipeOk));
763 myShape = MkSw.Shape();
764 myErrorOnSurf = MkSw.ErrorOnSurface();
766 TopoDS_Shape aBottomWire = myFirst;
767 TopoDS_Shape aTopWire = myLast;
769 if(BuildBoundaries(MkSw, mySection, aBottomWire, aTopWire)) {
770 myFirst = aBottomWire;
774 if (mySection->IsUClosed())
776 TopExp_Explorer explo;
777 Standard_Boolean DegenFirst = Standard_True, DegenLast = Standard_True;
779 for (explo.Init(myFirst, TopAbs_EDGE); explo.More(); explo.Next())
781 const TopoDS_Edge& anEdge = TopoDS::Edge(explo.Current());
782 DegenFirst = DegenFirst && BRep_Tool::Degenerated(anEdge);
785 for (explo.Init(myLast, TopAbs_EDGE); explo.More(); explo.Next())
787 const TopoDS_Edge& anEdge = TopoDS::Edge(explo.Current());
788 DegenLast = DegenLast && BRep_Tool::Degenerated(anEdge);
791 if (DegenFirst && DegenLast)
792 myShape.Closed(Standard_True);
801 myShape = Sh; // Nullify
802 if (myStatus == GeomFill_PipeOk) myStatus = GeomFill_PipeNotOk;
807 //=======================================================================
808 //function : MakeSolid
810 //=======================================================================
811 Standard_Boolean BRepFill_PipeShell::MakeSolid()
813 if (myShape.IsNull())
814 throw StdFail_NotDone("PipeShell is not built");
815 Standard_Boolean B = myShape.Closed();
820 if(!myFirst.IsNull() && !myLast.IsNull()) {
821 B = (myFirst.Closed() && myLast.Closed());
824 // It is necessary to block the extremities
825 B = PerformPlan(myFirst);
827 B = PerformPlan(myLast);
829 if (!myFirst.IsNull() && !IsSameOriented( myFirst, myShape ))
831 if (!myLast.IsNull() && !IsSameOriented( myLast, myShape ))
834 if (!myFirst.IsNull())
835 BS.Add(myShape, TopoDS::Face(myFirst));
836 if (!myLast.IsNull())
837 BS.Add(myShape, TopoDS::Face(myLast));
839 myShape.Closed(Standard_True);
848 BS.Add(solid,TopoDS::Shell(myShape));
849 BRepClass3d_SolidClassifier SC(solid);
850 SC.PerformInfinitePoint(Precision::Confusion());
851 if ( SC.State() == TopAbs_IN) {
854 BS.Add(solid,TopoDS::Shell(myShape));
857 myShape.Closed(Standard_True);
862 //=======================================================================
864 //purpose : Return the result
865 //=======================================================================
866 const TopoDS_Shape& BRepFill_PipeShell::Shape() const
871 //=======================================================================
872 //function : ErrorOnSurface
874 //=======================================================================
876 Standard_Real BRepFill_PipeShell::ErrorOnSurface() const
878 return myErrorOnSurf;
881 //=======================================================================
882 //function : FirstShape
883 //purpose : Return the start section
884 //=======================================================================
885 const TopoDS_Shape& BRepFill_PipeShell::FirstShape() const
890 //=======================================================================
891 //function : LastShape
892 //purpose : Return the end section
893 //=======================================================================
894 const TopoDS_Shape& BRepFill_PipeShell::LastShape() const
899 //=======================================================================
900 //function : Generated
902 //=======================================================================
903 void BRepFill_PipeShell::Generated(const TopoDS_Shape& theShape,
904 TopTools_ListOfShape& theList)
908 if(myGenMap.IsBound(theShape)) {
909 theList = myGenMap.Find(theShape);
913 //=======================================================================
915 //purpose : - Check that everything is ready
916 // - Construct the law of section
917 // - Construct the law of location if required
918 // - Calculate First & Last
919 //=======================================================================
920 void BRepFill_PipeShell::Prepare()
923 myEdgeNewEdges.Clear();
926 if (!IsReady()) throw StdFail_NotDone("PipeShell");
927 if (!myLocation.IsNull() && !mySection.IsNull()) return; // It is ready
929 //Check set of section for right configuration of punctual sections
931 TopoDS_Iterator iter;
932 for (i = 2; i <= mySeq.Length()-1; i++)
934 Standard_Boolean wdeg = Standard_True;
935 for (iter.Initialize(mySeq(i).Wire()); iter.More(); iter.Next())
937 const TopoDS_Edge& anEdge = TopoDS::Edge(iter.Value());
938 wdeg = wdeg && (BRep_Tool::Degenerated(anEdge));
941 throw Standard_Failure("Wrong usage of punctual sections");
943 if (mySeq.Length() <= 2)
945 Standard_Boolean wdeg = Standard_True;
946 for (i = 1; i <= mySeq.Length(); i++)
947 for (iter.Initialize(mySeq(i).Wire()); iter.More(); iter.Next())
949 const TopoDS_Edge& anEdge = TopoDS::Edge(iter.Value());
950 wdeg = wdeg && (BRep_Tool::Degenerated(anEdge));
953 throw Standard_Failure("Wrong usage of punctual sections");
956 // Construction of the law of location
957 if(myLocation.IsNull())
961 case GeomFill_IsCorrectedFrenet :
963 Handle(GeomFill_TrihedronLaw) TLaw =
964 new (GeomFill_CorrectedFrenet) ();
965 Handle(GeomFill_CurveAndTrihedron) Loc =
966 new (GeomFill_CurveAndTrihedron) (TLaw);
967 myLocation = new (BRepFill_Edge3DLaw) (mySpine, Loc);
972 throw Standard_ConstructionError("PipeShell");
977 //Transformation of the law (Transition Management)
978 PerformTransition(myTransition, myLocation, angmin);
981 // Construction of the section law
982 if (mySeq.Length() == 1) {
985 Place(mySeq(1), theSect, aTrsf, p1);
986 TopoDS_Wire aLocalShape = theSect;
987 if (mySeq(1).IsLaw())
988 mySection = new BRepFill_ShapeLaw(aLocalShape, myLaw);
989 // mySection = new (BRepFill_ShapeLaw) (TopoDS_Wire(theSect), myLaw);
991 mySection = new BRepFill_ShapeLaw(aLocalShape);
992 // mySection = new (BRepFill_ShapeLaw) (TopoDS::Wire(theSect));
994 WSeq.Append(theSect);
995 //Simple case of single section
996 myIndOfSec.Append(1);
997 TopoDS_Iterator itw(theSect);
998 for (; itw.More(); itw.Next())
1000 const TopoDS_Shape& anEdge = itw.Value();
1001 TopTools_ListOfShape Elist;
1002 Elist.Append(anEdge);
1003 myEdgeNewEdges.Bind(anEdge, Elist);
1005 ///////////////////////////////
1009 TColStd_SequenceOfReal Param;
1010 TColStd_SequenceOfInteger IndSec;
1011 GeomFill_SequenceOfTrsf Transformations;
1012 Standard_Integer NbL = myLocation->NbLaw();
1014 Standard_Real V1, V2, param;
1015 myLocation->CurvilinearBounds(NbL, V1, V2);
1017 Standard_Integer ideb = 0, ifin = 0;
1018 Standard_Integer iseq;
1019 for (iseq = 1; iseq <= mySeq.Length(); iseq++) {
1020 IndSec.Append(iseq);
1021 Place(mySeq(iseq), theSect, aTrsf, param);
1022 Param.Append(param);
1023 WSeq.Append(theSect);
1024 Transformations.Append(aTrsf);
1025 if (param==V1) ideb = iseq;
1026 if (param==V2) ifin = iseq;
1030 // looping sections ?
1031 if (myLocation->IsClosed()) {
1033 // place the initial section at the final position
1035 WSeq.Append(WSeq(ideb));
1038 // place the final section at the initial position
1040 WSeq.Append(WSeq(ifin));
1043 // it is necessary to find a medium section to impose by V1 and by V2
1044 Standard_Real pmin = RealLast(), pmax = RealFirst();
1045 TopoDS_Wire Wmin, Wmax;
1046 for (iseq = 1; iseq <= WSeq.Length(); iseq++) {
1047 if (Param.Value(iseq)<pmin) {
1048 pmin = Param.Value(iseq);
1049 Wmin = TopoDS::Wire(WSeq.Value(iseq));
1051 if (Param.Value(iseq)>pmax) {
1052 pmax = Param.Value(iseq);
1053 Wmax = TopoDS::Wire(WSeq.Value(iseq));
1056 // medium section between Wmin and Wmax
1058 Standard_Real dmin = Abs(pmin-V1);
1059 Standard_Real dmax = Abs(pmax-V2);
1060 if (ComputeSection(Wmin,Wmax,dmin,dmax,Wres)) {
1061 // impose section Wres at the beginning and the end
1064 IndSec.Append(WSeq.Length());
1067 IndSec.Append(WSeq.Length());
1072 // parse sections by increasing parameter
1073 Standard_Boolean play_again = Standard_True;
1074 while (play_again) {
1075 play_again = Standard_False;
1076 for (iseq=1;iseq<=WSeq.Length();iseq++) {
1077 for (Standard_Integer jseq=iseq+1;jseq<=WSeq.Length();jseq++) {
1078 if (Param.Value(iseq) > Param.Value(jseq)) {
1079 Param.Exchange(iseq,jseq);
1080 WSeq.Exchange(iseq,jseq);
1081 IndSec.Exchange(iseq,jseq);
1082 play_again = Standard_True;
1087 //Fill the array of real indices of sections
1088 for (Standard_Integer ii = 1; ii <= mySeq.Length(); ii++)
1089 for (Standard_Integer jj = 1; jj <= IndSec.Length(); jj++)
1090 if (IndSec(jj) == ii)
1092 myIndOfSec.Append(jj);
1098 char* name = new char[100];
1099 Standard_Integer NBSECT = 0;
1100 for (Standard_Integer i=1;i<=WSeq.Length();i++) {
1102 sprintf(name,"WSeq_%d",NBSECT);
1103 DBRep::Set(name,TopoDS::Wire(WSeq.Value(i)));
1110 // Calculate work sections
1111 TopTools_SequenceOfShape WorkingSections;
1112 WorkingSections.Clear();
1113 TopTools_DataMapOfShapeListOfShape WorkingMap;
1114 BRepFill_CompatibleWires Georges(WSeq);
1115 Georges.SetPercent(0.1);
1116 Georges.Perform(Standard_False);
1117 if (Georges.IsDone()) {
1118 WorkingSections = Georges.Shape();
1119 WorkingMap = Georges.Generated();
1120 //For each sub-edge of each section
1121 //we save its splits
1122 for (Standard_Integer ii = 1; ii <= WSeq.Length(); ii++)
1124 TopExp_Explorer Explo(WSeq(ii), TopAbs_EDGE);
1125 for (; Explo.More(); Explo.Next())
1127 const TopoDS_Edge& anEdge = TopoDS::Edge(Explo.Current());
1128 TopTools_ListOfShape aNewEdges = Georges.GeneratedShapes(anEdge);
1129 myEdgeNewEdges.Bind(anEdge, aNewEdges);
1134 throw Standard_ConstructionError("PipeShell : uncompatible wires");
1136 mySection = new (BRepFill_NSections) (WorkingSections,Transformations,Param,V1,V2);
1140 // modify the law of location if contact
1141 if ( (myTrihedron == GeomFill_IsGuidePlanWithContact)
1142 || (myTrihedron == GeomFill_IsGuideACWithContact) ) {
1143 Standard_Real fs, f, l, Delta, Length;
1144 Handle(GeomFill_LocationGuide) Loc;
1145 Handle(GeomFill_SectionLaw) Sec = mySection->ConcatenedLaw();
1146 myLocation->CurvilinearBounds(myLocation->NbLaw(), f, Length);
1147 Sec->GetDomain(fs,l);
1148 Delta = (l-fs)/Length;
1150 Standard_Real angle, old_angle = 0;
1151 for (Standard_Integer ipath=1; ipath<=myLocation->NbLaw(); ipath++) {
1152 myLocation->CurvilinearBounds(ipath, f, l);
1153 Loc = Handle(GeomFill_LocationGuide)::DownCast(myLocation->Law(ipath));
1154 Loc->Set(Sec, Standard_True, fs + f*Delta, fs + l*Delta,
1155 old_angle, angle); // force the rotation
1160 myStatus = myLocation->GetStatus();
1161 if (!mySection->IsDone())
1162 myStatus = GeomFill_PipeNotOk;
1165 //=======================================================================
1167 //purpose : Implement a Section in the local refernce frame
1168 // and return its parameter on the trajectory
1169 //=======================================================================
1170 void BRepFill_PipeShell::Place(const BRepFill_Section& Sec,
1173 Standard_Real& param)
1175 BRepFill_SectionPlacement Place(myLocation,
1179 Sec.WithCorrection());
1180 TopoDS_Wire TmpWire = Sec.Wire();
1181 aTrsf = Place.Transformation();
1182 //Transform the copy
1183 W = TopoDS::Wire(BRepBuilderAPI_Transform(TmpWire, aTrsf, Standard_True));
1184 ////////////////////////////////////
1185 param = Place.AbscissaOnPath();
1189 //=======================================================================
1190 //function : ResetLoc
1191 //purpose : Remove references to the sections in the laws of location
1192 //=======================================================================
1193 void BRepFill_PipeShell::ResetLoc()
1195 if ( (myTrihedron == GeomFill_IsGuidePlanWithContact)
1196 || (myTrihedron == GeomFill_IsGuideACWithContact) ) {
1197 Handle(GeomFill_LocationGuide) Loc;
1198 for (Standard_Integer isec=1; isec<=myLocation->NbLaw(); isec++) {
1199 Loc = Handle(GeomFill_LocationGuide)::DownCast(myLocation->Law(isec));
1200 Loc->EraseRotation();// remove the rotation
1205 //=======================================================================
1206 //function : BuildHistory
1207 //purpose : Builds history for edges and vertices of sections,
1208 // for edges and vertices of spine
1209 //=======================================================================
1210 void BRepFill_PipeShell::BuildHistory(const BRepFill_Sweep& theSweep)
1212 //Filling of <myGenMap>
1213 const Handle(TopTools_HArray2OfShape)& anUEdges = theSweep.InterFaces();
1216 TopTools_DataMapOfIntegerShape IndWireMap;
1218 Standard_Integer indw, inde;
1219 TopoDS_Iterator itw;
1220 for (indw = 1; indw <= mySeq.Length(); indw++)
1222 const TopoDS_Shape& Section = mySeq(indw).OriginalShape();
1223 TopoDS_Wire aSection;
1224 Standard_Boolean IsPunctual = mySeq(indw).IsPunctual();
1227 //for punctual sections (first or last)
1228 //we take all the wires generated along the path
1230 TopTools_ListOfShape* Elist = myGenMap.Bound(Section, TopTools_ListOfShape());
1231 for (Standard_Integer i = 1; i <= anUEdges->UpperRow(); i++)
1232 for (Standard_Integer j = 1; j <= anUEdges->UpperCol(); j++)
1233 Elist->Append(anUEdges->Value(i,j));
1238 aSection = TopoDS::Wire(Section);
1239 //Take the real index of section on the path
1240 Standard_Integer IndOfW = myIndOfSec(indw);
1241 const TopoDS_Wire& theWire = TopoDS::Wire(WSeq(IndOfW));
1242 BRepTools_WireExplorer wexp_sec(aSection);
1243 for (inde = 1; wexp_sec.More(); wexp_sec.Next())
1245 const TopoDS_Edge& anOriginalEdge = TopoDS::Edge(wexp_sec.Current());
1246 TopoDS_Edge anEdge = TopoDS::Edge(mySeq(indw).ModifiedShape(anOriginalEdge));
1247 if (BRep_Tool::Degenerated(anEdge))
1250 TopoDS_Shell aShell;
1251 BB.MakeShell(aShell);
1252 TopoDS_Vertex aVertex [2];
1253 TopExp::Vertices(anOriginalEdge, aVertex[0], aVertex[1]);
1254 Standard_Integer SignOfAnEdge =
1255 (anOriginalEdge.Orientation() == TopAbs_FORWARD)? 1 : -1;
1257 //For each non-degenerated inde-th edge of <aSection>
1258 //we find inde-th edge in <theWire>
1259 TopoDS_Edge theEdge;
1260 BRepTools_WireExplorer wexp(theWire);
1261 for (Standard_Integer i = 1; wexp.More(); wexp.Next())
1263 theEdge = TopoDS::Edge(wexp.Current());
1264 if (BRep_Tool::Degenerated(anEdge))
1271 //Take the list of splits for <theEdge>
1272 const TopTools_ListOfShape& NewEdges = myEdgeNewEdges(theEdge);
1273 Standard_Integer SignOfANewEdge = 0, SignOfIndex = 0;
1274 TopTools_ListIteratorOfListOfShape iter(NewEdges);
1275 for (; iter.More(); iter.Next())
1277 const TopoDS_Edge& aNewEdge = TopoDS::Edge(iter.Value());
1278 SignOfANewEdge = (aNewEdge.Orientation() == TopAbs_FORWARD)? 1 : -1;
1279 Standard_Integer anIndE = mySection->IndexOfEdge(aNewEdge);
1280 SignOfIndex = (anIndE > 0)? 1 : -1;
1281 anIndE = Abs(anIndE);
1282 //For an edge generated shape is a "tape" -
1283 //a shell usually containing this edge and
1284 //passing from beginning of path to its end
1285 TopoDS_Shape aTape = theSweep.Tape(anIndE);
1286 TopoDS_Iterator itsh(aTape);
1287 for (; itsh.More(); itsh.Next())
1288 BB.Add(aShell, itsh.Value());
1291 //Processing of vertices of <anEdge>
1292 //We should choose right index in <anUEdges>
1293 //for each vertex of edge
1294 Standard_Integer ToReverse = SignOfAnEdge * SignOfANewEdge * SignOfIndex;
1295 Standard_Integer UIndex [2];
1296 UIndex[0] = Abs(mySection->IndexOfEdge(NewEdges.First()));
1297 UIndex[1] = Abs(mySection->IndexOfEdge(NewEdges.Last())) + ToReverse;
1298 if (ToReverse == -1)
1303 if (mySection->IsUClosed())
1305 if (UIndex[0] > mySection->NbLaw())
1307 if (UIndex[1] > mySection->NbLaw())
1310 //if (SignOfAnEdge * SignOfANewEdge == -1)
1311 if (SignOfAnEdge == -1 ||
1312 SignOfANewEdge == -1)
1313 { Standard_Integer Tmp = UIndex[0]; UIndex[0] = UIndex[1]; UIndex[1] = Tmp; }
1315 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1316 TopExp::MapShapesAndAncestors(aShell, TopAbs_VERTEX, TopAbs_EDGE, VEmap);
1317 for (Standard_Integer kk = 0; kk < 2; kk++)
1319 if (myGenMap.IsBound(aVertex[kk]))
1321 if (IndWireMap.IsBound(UIndex[kk]))
1323 TopTools_ListOfShape* Elist = myGenMap.Bound(aVertex[kk], TopTools_ListOfShape());
1325 for (itw.Initialize( IndWireMap(UIndex[kk]) ); itw.More(); itw.Next())
1326 Elist->Append(itw.Value());
1332 TopTools_SequenceOfShape SeqEdges;
1333 Standard_Integer jj;
1334 for (jj = 1; jj <= anUEdges->UpperCol(); jj++)
1335 SeqEdges.Append(anUEdges->Value(UIndex[kk], jj));
1337 //Assemble the wire ("rail" along the path)
1338 //checking for possible holes
1339 //(they appear with option "Round Corner")
1341 //Missed edges are taken from <aShell>
1344 const TopoDS_Edge& FirstEdge = TopoDS::Edge(SeqEdges(1));
1345 if (FirstEdge.IsNull())
1347 BB.Add(aWire, FirstEdge);
1348 TopoDS_Vertex FirstVertex, CurVertex;
1349 TopExp::Vertices(FirstEdge, FirstVertex, CurVertex);
1350 TopoDS_Edge CurEdge;
1351 for (jj = 2; jj <= SeqEdges.Length(); jj++)
1353 CurEdge = TopoDS::Edge(SeqEdges(jj));
1354 TopoDS_Vertex Vfirst, Vlast;
1355 TopExp::Vertices(CurEdge, Vfirst, Vlast);
1356 if (CurVertex.IsSame(Vfirst))
1360 const TopTools_ListOfShape& Elist = VEmap.FindFromKey(Vfirst);
1361 TopTools_ListIteratorOfListOfShape itl(Elist);
1362 for (; itl.More(); itl.Next())
1364 const TopoDS_Edge& Candidate = TopoDS::Edge(itl.Value());
1365 if (Candidate.IsSame(CurEdge))
1367 TopoDS_Vertex V1, V2;
1368 TopExp::Vertices(Candidate, V1, V2);
1369 if (V1.IsSame(CurVertex) || V2.IsSame(CurVertex))
1371 BB.Add(aWire, Candidate);
1377 BB.Add(aWire, CurEdge);
1378 } //for (jj = 2; jj <= SeqEdges.Length(); jj++)
1379 //case of closed wire
1380 if (myLocation->IsClosed() &&
1381 !CurVertex.IsSame(FirstVertex))
1383 const TopTools_ListOfShape& Elist = VEmap.FindFromKey(CurVertex);
1384 TopTools_ListIteratorOfListOfShape itl(Elist);
1385 for (; itl.More(); itl.Next())
1387 const TopoDS_Edge& Candidate = TopoDS::Edge(itl.Value());
1388 if (Candidate.IsSame(CurEdge))
1390 TopoDS_Vertex V1, V2;
1391 TopExp::Vertices(Candidate, V1, V2);
1392 if (V1.IsSame(FirstVertex) || V2.IsSame(FirstVertex))
1394 BB.Add(aWire, Candidate);
1400 TopTools_ListOfShape* Elist = myGenMap.Bound(aVertex[kk], TopTools_ListOfShape());
1402 for (itw.Initialize(aWire); itw.More(); itw.Next())
1403 Elist->Append(itw.Value());
1405 //Save already built wire with its index
1406 IndWireMap.Bind(UIndex[kk], aWire);
1407 } //for (Standard_Integer kk = 0; kk < 2; kk++)
1408 ////////////////////////////////////
1410 TopTools_ListOfShape* Flist = myGenMap.Bound(anOriginalEdge, TopTools_ListOfShape());
1411 TopoDS_Iterator itsh(aShell);
1412 for (; itsh.More(); itsh.Next())
1413 Flist->Append(itsh.Value());
1414 ////////////////////////
1420 //For subshapes of spine
1421 const Handle(TopTools_HArray2OfShape)& aFaces = theSweep.SubShape();
1422 const Handle(TopTools_HArray2OfShape)& aVEdges = theSweep.Sections();
1424 BRepTools_WireExplorer wexp(mySpine);
1426 Standard_Boolean ToExit = Standard_False;
1430 ToExit = Standard_True;
1436 const TopoDS_Edge& anEdgeOfSpine = wexp.Current();
1438 TopTools_ListOfShape* Flist = myGenMap.Bound(anEdgeOfSpine, TopTools_ListOfShape());
1440 for (Standard_Integer i = 1; i <= aFaces->UpperRow(); i++)
1442 const TopoDS_Shape& aFace = aFaces->Value(i, inde);
1443 if (aFace.ShapeType() == TopAbs_FACE)
1444 Flist->Append(aFace);
1448 const TopoDS_Vertex& aVertexOfSpine = wexp.CurrentVertex();
1449 TopTools_ListOfShape* ListVshapes = myGenMap.Bound(aVertexOfSpine, TopTools_ListOfShape());
1450 for (Standard_Integer i = 1; i <= aVEdges->UpperRow(); i++)
1452 const TopoDS_Shape& aVshape = aVEdges->Value(i, inde);
1453 if (aVshape.IsNull())
1457 if (aVshape.ShapeType() == TopAbs_EDGE ||
1458 aVshape.ShapeType() == TopAbs_FACE)
1459 ListVshapes->Append(aVshape);
1462 TopoDS_Iterator itvshape(aVshape);
1463 for (; itvshape.More(); itvshape.Next())
1465 const TopoDS_Shape& aSubshape = itvshape.Value();
1466 if (aSubshape.ShapeType() == TopAbs_EDGE ||
1467 aSubshape.ShapeType() == TopAbs_FACE)
1468 ListVshapes->Append(aSubshape);
1472 for (itw.Initialize(aSubshape); itw.More(); itw.Next())
1473 ListVshapes->Append(itw.Value());
1488 // ---------------------------------------------------------------------------------
1489 // static function: BuildBoundaries
1491 // ---------------------------------------------------------------------------------
1492 Standard_Boolean BuildBoundaries(const BRepFill_Sweep& theSweep,
1493 const Handle(BRepFill_SectionLaw)& theSection,
1494 TopoDS_Shape& theBottom,
1495 TopoDS_Shape& theTop) {
1497 TopoDS_Wire aBottomWire;
1498 TopoDS_Wire aTopWire;
1500 aB.MakeWire(aBottomWire);
1501 aB.MakeWire(aTopWire);
1502 Standard_Boolean bfoundbottom = Standard_False;
1503 Standard_Boolean bfoundtop = Standard_False;
1504 Handle(TopTools_HArray2OfShape) aVEdges = theSweep.Sections();
1505 Standard_Integer i = 0;
1506 Standard_Boolean bAllSame = Standard_True;
1508 for(i = 1; i <= theSection->NbLaw(); i++) {
1509 const TopoDS_Shape& aBottomEdge = aVEdges->Value(i, aVEdges->LowerCol());
1511 if(!aBottomEdge.IsNull() && (aBottomEdge.ShapeType() == TopAbs_EDGE)) {
1512 aB.Add(aBottomWire, aBottomEdge);
1513 bfoundbottom = Standard_True;
1515 const TopoDS_Shape& aTopEdge = aVEdges->Value(i, aVEdges->UpperCol());
1517 if(!aTopEdge.IsNull() && (aTopEdge.ShapeType() == TopAbs_EDGE)) {
1518 aB.Add(aTopWire, aTopEdge);
1519 bfoundtop = Standard_True;
1522 if(!aBottomEdge.IsNull() && !aTopEdge.IsNull() && !aBottomEdge.IsSame(aTopEdge))
1523 bAllSame = Standard_False;
1526 if(theSection->IsUClosed()) {
1527 aBottomWire.Closed(Standard_True);
1528 aTopWire.Closed(Standard_True);
1532 theBottom = aBottomWire;
1539 if(bAllSame && bfoundbottom && bfoundtop)
1542 return bfoundbottom || bfoundtop;