1 // Created on: 1998-07-02
2 // Created by: Joelle CHAUVET
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.
17 #include <BRepFill_CompatibleWires.ixx>
19 #include <BRepAdaptor_Curve.hxx>
21 #include <BRepFill.hxx>
22 #include <BRepLib.hxx>
23 #include <BRepLib_FindSurface.hxx>
24 #include <BRepLib_MakeWire.hxx>
25 #include <BRepLib_MakeEdge.hxx>
26 #include <BRepCheck_Wire.hxx>
27 #include <BRepExtrema_DistShapeShape.hxx>
28 #include <Bnd_Box.hxx>
29 #include <BRepBndLib.hxx>
30 #include <BRep_Builder.hxx>
31 #include <BRep_Tool.hxx>
32 #include <BRepTools_WireExplorer.hxx>
33 #include <BRepLProp.hxx>
34 #include <BRepGProp.hxx>
35 #include <GProp_GProps.hxx>
36 #include <GProp_PrincipalProps.hxx>
37 #include <Geom_Surface.hxx>
38 #include <Geom_Plane.hxx>
39 #include <Precision.hxx>
42 #include <TopExp_Explorer.hxx>
44 #include <TopoDS_Wire.hxx>
45 #include <TopTools_ListIteratorOfListOfShape.hxx>
46 #include <TopTools_DataMapOfShapeListOfShape.hxx>
47 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
48 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
49 #include <TopTools_HSequenceOfShape.hxx>
50 #include <TopTools_SequenceOfShape.hxx>
51 #include <TopTools_ListOfShape.hxx>
57 #include <gp_Circ.hxx>
58 #include <gp_Elips.hxx>
59 #include <TColgp_HArray1OfVec.hxx>
60 #include <TColgp_HArray1OfPnt.hxx>
62 #include <TColStd_Array1OfInteger.hxx>
63 #include <TColStd_MapOfInteger.hxx>
64 #include <TColStd_Array1OfReal.hxx>
65 #include <TColStd_SequenceOfReal.hxx>
68 static void EdgesFromVertex (const TopoDS_Wire& W,
69 const TopoDS_Vertex& V,
73 TopTools_IndexedDataMapOfShapeListOfShape Map;
74 TopExp::MapShapesAndAncestors(W,TopAbs_VERTEX,TopAbs_EDGE,Map);
76 const TopTools_ListOfShape& List = Map.FindFromKey(V);
77 TopoDS_Edge e1 = TopoDS::Edge(List.First());
78 TopoDS_Edge e2 = TopoDS::Edge(List. Last());
80 BRepTools_WireExplorer anExp;
81 Standard_Integer I1=0, I2=0, NE=0;
83 for(anExp.Init(W); anExp.More(); anExp.Next()) {
85 const TopoDS_Edge& ECur = anExp.Current();
86 if (e1.IsSame(ECur)) {
89 if (e2.IsSame(ECur)) {
95 // consecutive numbers
106 // non consecutive numbers on a closed wire
119 static void SeqOfVertices (const TopoDS_Wire& W,
120 TopTools_SequenceOfShape& S)
123 Standard_Integer jj, cpt = 0;
125 for (PE.Init(W,TopAbs_VERTEX); PE.More(); PE.Next()) {
127 Standard_Boolean trouve=Standard_False;
128 for (jj=1;jj<=S.Length() && (!trouve);jj++) {
129 if (S.Value(jj).IsSame(PE.Current())) trouve = Standard_True;
131 if (!trouve) S.Append(PE.Current());
136 static Standard_Boolean PlaneOfWire (const TopoDS_Wire& W, gp_Pln& P)
138 Standard_Boolean isplane = Standard_True;
139 BRepLib_FindSurface findPlanarSurf;
140 Handle(Geom_Surface) S;
145 Standard_Boolean isBaryDefined = Standard_False;
147 // shielding for particular cases : only one edge circle or ellipse
148 // on a closed wire !
150 Standard_Boolean wClosed = W.Closed();
153 // it is checked if the vertices are the same.
154 TopoDS_Vertex V1, V2;
155 TopExp::Vertices(W,V1,V2);
156 if ( V1.IsSame(V2)) wClosed = Standard_True;
161 Standard_Integer nbEdges = 0;
162 TopoDS_Iterator anIter;
163 anIter.Initialize(W);
164 for(; anIter.More(); anIter.Next())
169 GeomAdaptor_Curve AdC;
170 Standard_Real first, last;
171 anIter.Initialize(W);
172 AdC.Load(BRep_Tool::Curve(TopoDS::Edge(anIter.Value()), first, last));
174 if (AdC.GetType() == GeomAbs_Circle)
176 Bary = AdC.Circle().Location();
177 isBaryDefined = Standard_True;
180 if (AdC.GetType() == GeomAbs_Ellipse)
182 Bary = AdC.Ellipse().Location();
183 isBaryDefined = Standard_True;
190 BRepGProp::LinearProperties(W,GP);
191 Bary = GP.CentreOfMass();
194 findPlanarSurf.Init(W, -1, Standard_True);
195 if ( findPlanarSurf.Found())
197 S = findPlanarSurf.Surface();
198 L = findPlanarSurf.Location();
199 if (!L.IsIdentity()) S = Handle(Geom_Surface)::
200 DownCast(S->Transformed(L.Transformation()));
201 P = (Handle(Geom_Plane)::DownCast(S))->Pln();
207 GProp_PrincipalProps Pp = GP.PrincipalProperties();
209 Standard_Real R1, R2, R3,Tol = Precision::Confusion();
210 Pp.RadiusOfGyration(R1,R2,R3);
211 Standard_Real RMax = Max(Max(R1,R2),R3);
212 if ( ( Abs(RMax-R1)<Tol && Abs(RMax-R2)<Tol )
213 || ( Abs(RMax-R1)<Tol && Abs(RMax-R3)<Tol )
214 || ( Abs(RMax-R2)<Tol && Abs(RMax-R3)<Tol ) )
215 isplane = Standard_False;
218 if (R1>=R2 && R1>=R3)
220 Vec = Pp.FirstAxisOfInertia();
222 else if (R2>=R1 && R2>=R3)
224 Vec = Pp.SecondAxisOfInertia();
226 else if (R3>=R1 && R3>=R2)
228 Vec = Pp.ThirdAxisOfInertia();
231 if (R3<=R2 && R3<=R1)
233 Vec = Pp.ThirdAxisOfInertia();
235 else if (R2<=R1 && R2<=R3)
237 Vec = Pp.SecondAxisOfInertia();
239 else if (R1<=R2 && R1<=R3)
241 Vec = Pp.FirstAxisOfInertia();
244 gp_Ax3 repere(Bary,NDir,XDir);
245 Geom_Plane GPlan(repere);
255 static void WireContinuity (const TopoDS_Wire& W,
256 GeomAbs_Shape& contW)
260 Standard_Boolean IsDegenerated = Standard_False;
262 BRepTools_WireExplorer anExp;
263 Standard_Integer nbEdges=0;
264 Handle(TopTools_HSequenceOfShape) Edges = new TopTools_HSequenceOfShape();
265 for(anExp.Init(W); anExp.More(); anExp.Next()) {
267 Edges->Append(anExp.Current());
268 if (BRep_Tool::Degenerated(anExp.Current())) IsDegenerated = Standard_True;
271 if (!IsDegenerated) {
273 Standard_Boolean testconti = Standard_True;
275 for (Standard_Integer j=1;j<=nbEdges;j++) {
277 TopoDS_Edge Edge1, Edge2;
280 Edge1 = TopoDS::Edge (Edges->Value(nbEdges));
281 Edge2 = TopoDS::Edge (Edges->Value(1));
284 Edge1 = TopoDS::Edge (Edges->Value(j));
285 Edge2 = TopoDS::Edge (Edges->Value(j+1));
288 TopoDS_Vertex V1,V2,Vbid;
289 TopExp::Vertices(Edge1,Vbid,V1,Standard_True);
290 TopExp::Vertices(Edge2,V2,Vbid,Standard_True);
291 Standard_Real U1 = BRep_Tool::Parameter(V1,Edge1);
292 Standard_Real U2 = BRep_Tool::Parameter(V2,Edge2);
293 BRepAdaptor_Curve Curve1(Edge1);
294 BRepAdaptor_Curve Curve2(Edge2);
295 Standard_Real Eps = BRep_Tool::Tolerance(V2) + BRep_Tool::Tolerance(V1);
298 testconti = Curve1.Value(U1).IsEqual(Curve2.Value(U2), Eps);
301 cont = BRepLProp::Continuity(Curve1,Curve2,U1,U2,
302 Eps, Precision::Angular());
303 if (cont <= contW) contW = cont;
310 static void TrimEdge (const TopoDS_Edge& CurrentEdge,
311 const TColStd_SequenceOfReal& CutValues,
312 const Standard_Real t0, const Standard_Real t1,
313 const Standard_Boolean SeqOrder,
314 TopTools_SequenceOfShape& S)
318 Standard_Integer j, ndec=CutValues.Length();
319 Standard_Real first,last,m0,m1;
320 Handle(Geom_Curve) C = BRep_Tool::Curve(CurrentEdge,first,last);
322 TopoDS_Vertex Vf,Vl,Vbid,V0,V1;
323 TopAbs_Orientation CurrentOrient = CurrentEdge.Orientation();
324 TopExp::Vertices(CurrentEdge,Vf,Vl);
328 // from first to last
331 for (j=1; j<=ndec; j++) {
333 m1 = (CutValues.Value(j)-t0)*(last-first)/(t1-t0)+first;
334 TopoDS_Edge CutE = BRepLib_MakeEdge(C,V0,Vbid,m0,m1);
335 CutE.Orientation(CurrentOrient);
338 V0 = TopExp::LastVertex(CutE);
341 TopoDS_Edge LastE = BRepLib_MakeEdge(C,V0,Vl,m0,last);
342 LastE.Orientation(CurrentOrient);
348 // from last to first
351 for (j=ndec; j>=1; j--) {
353 m0 = (CutValues.Value(j)-t0)*(last-first)/(t1-t0)+first;
354 TopoDS_Edge CutE = BRepLib_MakeEdge(C,Vbid,V1,m0,m1);
355 CutE.Orientation(CurrentOrient);
358 V1 = TopExp::FirstVertex(CutE);
361 TopoDS_Edge LastE = BRepLib_MakeEdge(C,Vf,V1,first,m1);
362 LastE.Orientation(CurrentOrient);
371 static Standard_Boolean SearchRoot (const TopoDS_Vertex& V,
372 const TopTools_DataMapOfShapeListOfShape& Map,
373 TopoDS_Vertex& VRoot)
375 Standard_Boolean trouve = Standard_False;
377 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape it;
378 for (it.Initialize(Map); it.More(); it.Next()) {
379 const TopTools_ListOfShape & List = it.Value();
380 TopTools_ListIteratorOfListOfShape itL;
381 Standard_Boolean ilyest = Standard_False;
382 for (itL.Initialize(List); itL.More(); itL.Next()) {
383 TopoDS_Vertex Vcur = TopoDS::Vertex(itL.Value());
384 if (Vcur.IsSame(V)) {
385 ilyest = Standard_True;
390 trouve = Standard_True;
391 VRoot = TopoDS::Vertex(it.Key());
398 static Standard_Boolean SearchVertex (const TopTools_ListOfShape& List,
399 const TopoDS_Wire& W,
402 Standard_Boolean trouve = Standard_False;
404 TopTools_SequenceOfShape SeqV;
405 SeqOfVertices(W,SeqV);
406 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
407 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
408 TopTools_ListIteratorOfListOfShape itL;
409 Standard_Boolean ilyest = Standard_False;
410 for (itL.Initialize(List); itL.More(); itL.Next()) {
411 TopoDS_Vertex Vcur = TopoDS::Vertex(itL.Value());
412 if (Vcur.IsSame(Vi)) {
413 ilyest = Standard_True;
418 trouve = Standard_True;
427 static Standard_Boolean EdgeIntersectOnWire (const gp_Pnt& P1,
429 Standard_Real percent,
430 const TopTools_DataMapOfShapeListOfShape& Map,
431 const TopoDS_Wire& W,
436 BRepTools_WireExplorer anExp;
438 // construction of the edge of intersection
439 Standard_Boolean NewVertex = Standard_False;
440 gp_Lin droite(P1,gp_Dir(gp_Vec(P1,P2)));
441 // ATTENTION : it is required to construct a half-straight
442 // but there is a bug in BRepExtrema_DistShapeShape
443 // it is enough to take 100 * distance between P1 and P2
444 // hoping that it is enough until the bug is corrected
445 // Standard_Real dernierparam = Precision::Infinite();
446 // ATTENTION : return !!
447 // 100 is better than 10 but it is too much !
448 // finally, nothing is better than a blocking box
449 // Standard_Real dernierparam = 100 * P1.Distance(P2);
451 BRepBndLib::Add(W,B);
452 Standard_Real x1,x2,y1,y2,z1,z2;
453 B.Get(x1,y1,z1,x2,y2,z2);
454 gp_Pnt BP1(x1,y1,z1), BP2(x2,y2,z2);
455 Standard_Real diag = BP1.Distance(BP2);
456 Standard_Real dernierparam = diag;
457 BRepLib_MakeEdge ME(droite,0.,dernierparam);
458 TopoDS_Edge ECur = BRepLib_MakeEdge(droite,0.,P1.Distance(P2));
460 // calculate the intersection by BRepExtrema (point of min distance)
461 BRepExtrema_DistShapeShape DSS(ME.Edge(),W);
463 // choose the solution closest to P2
464 Standard_Integer isol = 1;
465 Standard_Real dss = P2.Distance(DSS.PointOnShape2(isol));
466 for (Standard_Integer iss=2; iss<=DSS.NbSolution(); iss++) {
467 if (dss>P2.Distance(DSS.PointOnShape2(iss))) {
468 dss = P2.Distance(DSS.PointOnShape2(iss));
475 DSS.PointOnShape2(isol);
476 // is the solution a new vertex ?
477 NewVertex = (DSS.SupportTypeShape2(isol) != BRepExtrema_IsVertex);
479 TopoDS_Shape aLocalShape = DSS.SupportOnShape2(isol);
480 TopoDS_Edge E = TopoDS::Edge(aLocalShape);
481 // TopoDS_Edge E = TopoDS::Edge(DSS.SupportOnShape2(isol));
482 Standard_Real tol = Precision::PConfusion();
483 Standard_Real first,last,param;
484 BRep_Tool::Range(E,first,last);
485 tol = Max(tol,percent*Abs(last-first));
486 DSS.ParOnEdgeS2(isol,param);
487 if (Abs(first-param)<tol) {
488 NewVertex = Standard_False;
489 Vsol = TopExp::FirstVertex(E);
491 else if (Abs(last-param)<tol) {
492 NewVertex = Standard_False;
493 Vsol = TopExp::LastVertex(E);
498 if (SearchRoot(Vsol,Map,VRoot)) NewVertex = Standard_True;
502 TopoDS_Shape aLocalShape = DSS.SupportOnShape2(isol);
503 Vsol = TopoDS::Vertex(aLocalShape);
504 // Vsol = TopoDS::Vertex(DSS.SupportOnShape2(isol));
507 // it is required to cut the edge
509 TopoDS_Shape aLocalShape = DSS.SupportOnShape2(isol);
510 TopoDS_Edge E = TopoDS::Edge(aLocalShape);
511 // TopoDS_Edge E = TopoDS::Edge(DSS.SupportOnShape2(isol));
512 Standard_Real first,last,param;
513 DSS.ParOnEdgeS2(isol,param);
514 BRep_Tool::Range(E,first,last);
516 for (anExp.Init(W); anExp.More(); anExp.Next()) {
517 if (E.IsSame(anExp.Current())) {
519 = (anExp.CurrentVertex().IsSame(TopExp::FirstVertex(E)));
520 TopTools_SequenceOfShape SE;
522 TColStd_SequenceOfReal SR;
525 TrimEdge(E,SR,first,last,SO,SE);
526 TopoDS_Vertex VV1,VV2;
527 TopExp::Vertices(TopoDS::Edge(SE.Value(1)),VV1,VV2);
528 if (TopExp::FirstVertex(E).IsSame(VV1)
529 || TopExp::LastVertex(E).IsSame(VV1)) {
532 if (TopExp::FirstVertex(E).IsSame(VV2)
533 || TopExp::LastVertex(E).IsSame(VV2)) {
536 for (Standard_Integer k=1; k<=SE.Length(); k++) {
537 MW.Add(TopoDS::Edge(SE.Value(k)));
541 MW.Add(anExp.Current());
558 static void Transform (const Standard_Boolean WithRotation,
567 Pnew = P.Translated (Pos1,Pos2);
568 gp_Vec axe1 = Ax1, axe2 = Ax2;
569 if (!axe1.IsParallel(axe2,1.e-4)) {
570 gp_Vec Vtrans(Pos1,Pos2),Vsign;
571 Standard_Real alpha,beta,sign=1;
572 alpha = Vtrans.Dot(axe1);
573 beta = Vtrans.Dot(axe2);
574 if (alpha<-1.e-7) axe1 *=-1;
575 if (beta<1.e-7) axe2 *=-1;
576 alpha = Vtrans.Dot(axe1);
577 beta = Vtrans.Dot(axe2);
578 gp_Vec norm2 = axe1 ^ axe2;
579 Vsign.SetLinearForm(Vtrans.Dot(axe1),axe2,-Vtrans.Dot(axe2),axe1);
580 alpha = Vsign.Dot(axe1);
581 beta = Vsign.Dot(axe2);
582 Standard_Boolean pasnul = (Abs(alpha)>1.e-4 && Abs(beta)>1.e-4);
583 if ( alpha*beta>0.0 && pasnul ) sign=-1;
584 gp_Ax1 Norm(Pos2,norm2);
585 Standard_Real ang = axe1.AngleWithRef(axe2,norm2);
587 if (ang>M_PI/2) ang = ang - M_PI;
588 if (ang<-M_PI/2) ang = ang + M_PI;
591 Pnew = Pnew.Rotated (Norm,ang);
595 static void BuildConnectedEdges(const TopoDS_Wire& aWire,
596 const TopoDS_Edge& StartEdge,
597 const TopoDS_Vertex& StartVertex,
598 TopTools_ListOfShape& ConnectedEdges)
600 TopTools_IndexedDataMapOfShapeListOfShape MapVE;
601 TopExp::MapShapesAndAncestors(aWire, TopAbs_VERTEX, TopAbs_EDGE, MapVE);
602 TopoDS_Edge CurEdge = StartEdge;
603 TopoDS_Vertex CurVertex = StartVertex;
604 TopoDS_Vertex Origin, V1, V2;
605 TopExp::Vertices(StartEdge, V1, V2);
606 Origin = (V1.IsSame(StartVertex))? V2 : V1;
610 TopTools_ListIteratorOfListOfShape itE( MapVE.FindFromKey(CurVertex) );
611 for (; itE.More(); itE.Next())
613 TopoDS_Edge anEdge = TopoDS::Edge(itE.Value());
614 if (!anEdge.IsSame(CurEdge))
616 ConnectedEdges.Append(anEdge);
617 TopExp::Vertices(anEdge, V1, V2);
618 CurVertex = (V1.IsSame(CurVertex))? V2 : V1;
623 if (CurVertex.IsSame(Origin))
628 //=======================================================================
629 //function : BRepFill_CompatibleWires
631 //=======================================================================
633 BRepFill_CompatibleWires::BRepFill_CompatibleWires()
634 :myIsDone(Standard_False)
639 //=======================================================================
640 //function : BRepFill_CompatibleWires
642 //=======================================================================
644 BRepFill_CompatibleWires::BRepFill_CompatibleWires(const TopTools_SequenceOfShape& Sections)
650 //=======================================================================
653 //=======================================================================
655 void BRepFill_CompatibleWires::Init(const TopTools_SequenceOfShape& Sections)
660 myIsDone = Standard_False;
666 //=======================================================================
667 //function : SetPercent
669 //=======================================================================
671 void BRepFill_CompatibleWires::SetPercent(const Standard_Real Percent)
673 if (0.<Percent && Percent<1.) myPercent = Percent;
678 //=======================================================================
681 //=======================================================================
683 Standard_Boolean BRepFill_CompatibleWires::IsDone() const
689 //=======================================================================
692 //=======================================================================
694 const TopTools_SequenceOfShape& BRepFill_CompatibleWires::Shape() const
700 //=======================================================================
701 //function : GeneratedShapes
703 //=======================================================================
705 const TopTools_ListOfShape& BRepFill_CompatibleWires::GeneratedShapes
706 (const TopoDS_Edge& SubSection) const
709 if (myMap.IsBound(SubSection)) {
710 return myMap(SubSection);
713 static TopTools_ListOfShape Empty;
719 //=======================================================================
722 //=======================================================================
724 void BRepFill_CompatibleWires::Perform (const Standard_Boolean WithRotation)
726 // compute origin and orientation on wires to avoid twisted results
727 // and update wires to have same number of edges
729 // determination of report:
730 // if the number of elements is the same and if the wires have discontinuities
731 // by tangency, the report is not carried out by curvilinear abscissa
732 Standard_Integer nbSects = myWork.Length(), i;
733 BRepTools_WireExplorer anExp;
734 Standard_Integer nbmax=0, nbmin=0;
735 TColStd_Array1OfInteger nbEdges(1,nbSects);
736 Standard_Boolean report;
737 GeomAbs_Shape contS=GeomAbs_CN;
739 for (i=1; i<=nbSects; i++) {
740 TopoDS_Shape aLocalShape = myWork(i).Oriented(TopAbs_FORWARD);
741 myWork(i) = TopoDS::Wire(aLocalShape);
742 // myWork(i) = TopoDS::Wire(myWork(i).Oriented(TopAbs_FORWARD));
743 TopoDS_Wire W = TopoDS::Wire(myWork(i));
744 WireContinuity(W,cont);
745 if (cont<contS) contS=cont;
747 for(anExp.Init(W); anExp.More(); anExp.Next() ) nbEdges(i)++;
748 if (i==1) nbmin = nbEdges(i);
749 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
750 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
752 // if the number of elements is not the same or if all wires are at least
753 // C1, the report is carried out by curvilinear abscissa of cuts, otherwise
754 // a report vertex / Vertex is done
755 report = (nbmax != nbmin || contS >= GeomAbs_C1 );
757 // initialization of the map
758 Standard_Integer nbE = 0;
759 TopTools_ListOfShape Empty;
760 for (i=1; i<=nbSects; i++) {
761 TopoDS_Wire W = TopoDS::Wire(myWork(i));
762 for(anExp.Init(W); anExp.More(); anExp.Next() ) {
763 TopoDS_Edge E = TopoDS::Edge(anExp.Current());
770 // open/closed sections
771 // initialisation of myDegen1, myDegen2
772 Standard_Integer ideb=1, ifin=myWork.Length();
773 // check if the first wire is punctual
774 myDegen1 = Standard_True;
775 for(anExp.Init(TopoDS::Wire(myWork(ideb))); anExp.More(); anExp.Next()) {
776 myDegen1 = myDegen1 && (BRep_Tool::Degenerated(anExp.Current()));
778 if (myDegen1) ideb++;
779 // check if the last wire is punctual
780 myDegen2 = Standard_True;
781 for(anExp.Init(TopoDS::Wire(myWork(ifin))); anExp.More(); anExp.Next()) {
782 myDegen2 = myDegen2 && (BRep_Tool::Degenerated(anExp.Current()));
784 if (myDegen2) ifin--;
786 Standard_Boolean wClosed, allClosed = Standard_True, allOpen = Standard_True;
787 for (i=ideb; i<=ifin; i++) {
788 wClosed = myWork(i).Closed();
790 // check if the vertices are the same.
791 TopoDS_Vertex V1, V2;
792 TopExp::Vertices(TopoDS::Wire(myWork(i)),V1,V2);
793 if ( V1.IsSame(V2)) wClosed = Standard_True;
795 allClosed = (allClosed && wClosed);
796 allOpen = (allOpen && !wClosed);
800 // All sections are closed
802 // same number of elements
803 SameNumberByPolarMethod(WithRotation);
807 ComputeOrigin(Standard_False);
809 myIsDone = Standard_True;
812 // All sections are open
815 // same number of elements
817 SameNumberByACR(report);
819 myIsDone = Standard_True;
822 // There are open and closed sections :
824 Standard_DomainError::Raise("Sections must be all closed or all open");
832 //=======================================================================
833 //function : Generated
835 //=======================================================================
837 const TopTools_DataMapOfShapeListOfShape& BRepFill_CompatibleWires::Generated() const
843 //=======================================================================
844 //function : SameNumberByPolarMethod
846 //=======================================================================
848 void BRepFill_CompatibleWires::
849 SameNumberByPolarMethod(const Standard_Boolean WithRotation)
853 Standard_Integer NbSects=myWork.Length();
854 BRepTools_WireExplorer anExp;
855 TopoDS_Vertex V1, V2;
857 Standard_Boolean allClosed = Standard_True;
858 Standard_Integer i,ii,ideb=1,ifin=NbSects;
859 for (i=1; i<=NbSects; i++) {
860 Handle(BRepCheck_Wire) Checker = new BRepCheck_Wire(TopoDS::Wire(myWork(i)));
861 allClosed = (allClosed && (Checker->Closed() == BRepCheck_NoError));
862 //allClosed = (allClosed && myWork(i).Closed());
865 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByPolarMethod : the wires must be closed");
867 // sections ponctuelles, sections bouclantes ?
868 if (myDegen1) ideb++;
869 if (myDegen2) ifin--;
870 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
871 && (myWork(ideb).IsSame(myWork(ifin)));
873 //Removing degenerated edges
874 for (i = ideb; i <= ifin; i++)
876 Standard_Boolean hasDegEdge = Standard_False;
877 TopoDS_Iterator anItw(myWork(i));
878 for (; anItw.More(); anItw.Next())
880 const TopoDS_Edge& anEdge = TopoDS::Edge(anItw.Value());
881 if (BRep_Tool::Degenerated(anEdge))
883 hasDegEdge = Standard_True;
889 TopoDS_Wire aNewWire;
890 BRep_Builder aBBuilder;
891 aBBuilder.MakeWire(aNewWire);
892 for (anItw.Initialize(myWork(i)); anItw.More(); anItw.Next())
894 const TopoDS_Edge& anEdge = TopoDS::Edge(anItw.Value());
895 if (!BRep_Tool::Degenerated(anEdge))
896 aBBuilder.Add(aNewWire, anEdge);
898 myWork(i) = aNewWire;
902 // Nombre max de decoupes possibles
903 Standard_Integer NbMaxV = 0;
904 for (i=1; i<=NbSects; i++) {
905 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
910 // construction of tables of planes of wires
912 Handle(TColgp_HArray1OfPnt) Pos
913 = new (TColgp_HArray1OfPnt) (1,NbSects);
914 Handle(TColgp_HArray1OfVec) Axe
915 = new (TColgp_HArray1OfVec) (1,NbSects);
916 for (i=ideb;i<=ifin;i++) {
917 if (PlaneOfWire(TopoDS::Wire(myWork(i)),P)) {
918 Pos->SetValue(i,P.Location());
919 Axe->SetValue(i,gp_Vec(P.Axis().Direction()));
922 TopTools_SequenceOfShape SeqV;
924 SeqOfVertices(TopoDS::Wire(myWork(1)),SeqV);
925 Pos->SetValue(1,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
926 Axe->SetValue(1,Axe->Value(ideb));
929 SeqOfVertices(TopoDS::Wire(myWork(NbSects)),SeqV);
930 Pos->SetValue(NbSects,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
931 Axe->SetValue(NbSects,Axe->Value(ifin));
934 // construction of RMap, map of reports of wire i to wire i-1
935 TopTools_DataMapOfShapeListOfShape RMap;
939 for (i=ifin; i>ideb; i--) {
941 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
943 // sequence of vertices of the first wire
944 SeqOfVertices(wire1,SeqV);
945 if (SeqV.Length()>NbMaxV)
946 Standard_NoSuchObject::Raise("BRepFill::SameNumberByPolarMethod failed");
948 // extremity of the first wire
949 V1 = TopoDS::Vertex(SeqV.Value(1));
950 // loop on vertices of wire1
951 for (ii=1;ii<=SeqV.Length();ii++) {
953 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
955 // init of RMap for Vi
956 TopTools_ListOfShape Init;
960 // it is required to find intersection Vi - wire2
961 gp_Pnt Pi = BRep_Tool::Pnt(Vi);
963 // return Pi in the current plane
965 Transform(WithRotation,Pi,
966 Pos->Value(i),Axe->Value(i),
967 Pos->Value(i-1),Axe->Value(i-1),Pnew);
969 // calculate the intersection
970 TopoDS_Shape Support;
971 Standard_Boolean NewVertex;
974 if (Pnew.Distance(Pos->Value(i-1))>Precision::Confusion()) {
975 Standard_Real percent = myPercent;
976 NewVertex = EdgeIntersectOnWire(Pos->Value(i-1),Pnew,percent,
977 RMap,TopoDS::Wire(myWork(i-1)),
979 if (NewVertex) myWork(i-1) = newwire;
980 RMap(Vi).Append(Vsol);
986 // initialisation of MapVLV, map of correspondences vertex - list of vertices
987 TopTools_DataMapOfShapeListOfShape MapVLV;
988 SeqOfVertices(TopoDS::Wire(myWork(ideb)),SeqV);
989 Standard_Integer SizeMap = SeqV.Length();
991 for (ii=1;ii<=SizeMap;ii++) {
992 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
993 TopTools_ListOfShape Init;
996 MapVLV.Bind(Vi,Init);
997 Standard_Integer NbV = 1;
1000 Standard_Boolean tantque = SearchRoot(V0,RMap,V1);
1002 MapVLV(Vi).Append(V1);
1004 // test on NbV required for looping sections
1005 if (V1.IsSame(Vi) || NbV >= myWork.Length()) {
1006 tantque = Standard_False;
1010 tantque = SearchRoot(V0,RMap,V1);
1016 for (i=ideb; i<ifin; i++) {
1018 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
1020 // sequence of vertices of the first wire
1021 SeqOfVertices(wire1,SeqV);
1022 if ( SeqV.Length()>NbMaxV || SeqV.Length()>SizeMap )
1023 Standard_NoSuchObject::Raise("BRepFill::SameNumberByPolarMethod failed");
1025 // extremity of the first wire
1026 V1 = TopoDS::Vertex(SeqV.Value(1));
1029 const TopoDS_Wire& wire2 = TopoDS::Wire(myWork(i+1));
1031 // loop on vertices of wire1
1032 for (ii=1;ii<=SeqV.Length();ii++) {
1034 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
1035 TopoDS_Vertex VRoot;
1037 Standard_Boolean intersect = Standard_True;
1038 if (SearchRoot(Vi,MapVLV,VRoot)) {
1039 const TopTools_ListOfShape& LVi = MapVLV(VRoot);
1042 intersect = (!SearchVertex(LVi,wire2,VonW));
1046 // it is necessary to find intersection Vi - wire2
1047 gp_Pnt Pi = BRep_Tool::Pnt(Vi);
1049 // return Pi in the current plane
1051 Transform(WithRotation,Pi,
1052 Pos->Value(i),Axe->Value(i),
1053 Pos->Value(i+1),Axe->Value(i+1),Pnew);
1055 // calculate the intersection
1056 TopoDS_Shape Support;
1057 Standard_Boolean NewVertex;
1059 TopoDS_Wire newwire;
1060 if (Pnew.Distance(Pos->Value(i+1))>Precision::Confusion()) {
1061 Standard_Real percent = myPercent;
1062 NewVertex = EdgeIntersectOnWire(Pos->Value(i+1),Pnew,percent,
1063 MapVLV,TopoDS::Wire(myWork(i+1)),
1065 MapVLV(VRoot).Append(Vsol);
1066 if (NewVertex) myWork(i+1) = newwire;
1073 // regularize wires following MapVLV
1074 TopoDS_Wire wire = TopoDS::Wire(myWork(ideb));
1076 // except for the last if the sections loop
1077 Standard_Integer ibout = ifin;
1078 if (vClosed) ibout--;
1080 for ( i=ideb+1; i<=ibout; i++) {
1082 BRepLib_MakeWire MW;
1085 TopoDS_Edge ECur = anExp.Current();
1086 TopoDS_Vertex VF,VL;
1087 TopExp::Vertices(ECur,VF,VL,Standard_True);
1088 Standard_Real U1 = BRep_Tool::Parameter(VF,ECur);
1089 Standard_Real U2 = BRep_Tool::Parameter(VL,ECur);
1090 BRepAdaptor_Curve Curve(ECur);
1091 gp_Pnt PPs = Curve.Value(0.1*(U1+9*U2));
1092 TopTools_ListIteratorOfListOfShape itF(MapVLV(VF)),itL(MapVLV(VL));
1093 Standard_Integer rang = ideb;
1099 TopoDS_Vertex V1 = TopoDS::Vertex(itF.Value()), V2 = TopoDS::Vertex(itL.Value());
1101 Standard_Real scalmax=0.;
1102 TopoDS_Iterator itW( myWork(i) );
1104 for(; itW.More(); itW.Next())
1106 TopoDS_Edge E = TopoDS::Edge(itW.Value());
1107 TopoDS_Vertex VVF,VVL;
1108 TopExp::Vertices(E,VVF,VVL,Standard_True);
1110 // parse candidate edges
1111 Standard_Real scal1,scal2;
1112 if ( (V1.IsSame(VVF)&&V2.IsSame(VVL)) || (V2.IsSame(VVF)&&V1.IsSame(VVL)) ) {
1113 Standard_Real U1 = BRep_Tool::Parameter(VVF,E);
1114 Standard_Real U2 = BRep_Tool::Parameter(VVL,E);
1115 BRepAdaptor_Curve Curve(E);
1116 gp_Pnt PP1 = Curve.Value(0.1*(U1+9*U2));
1117 gp_Pnt PP2 = Curve.Value(0.1*(9*U1+U2));
1119 for (rang=i;rang>ideb;rang--) {
1120 Transform(WithRotation, PP1,
1121 Pos->Value(rang), Axe->Value(rang),
1122 Pos->Value(rang-1), Axe->Value(rang-1), PP1);
1123 Transform(WithRotation, PP2,
1124 Pos->Value(rang), Axe->Value(rang),
1125 Pos->Value(rang-1), Axe->Value(rang-1), PP2);
1127 gp_Vec Ns(Pos->Value(ideb),PPs);
1128 Ns = Ns.Normalized();
1129 gp_Vec N1(Pos->Value(ideb),PP1);
1130 N1 = N1.Normalized();
1131 gp_Vec N2(Pos->Value(ideb),PP2);
1132 N2 = N2.Normalized();
1134 if (scal1>scalmax) {
1139 if (scal2>scalmax) {
1141 TopoDS_Shape aLocalShape = E.Reversed();
1142 Esol = TopoDS::Edge(aLocalShape);
1145 } //end of for(; itW.More(); itW.Next())
1148 TopTools_ListOfShape ConnectedEdges;
1149 BuildConnectedEdges( TopoDS::Wire(myWork(i)), Esol, V2, ConnectedEdges );
1151 TopTools_ListIteratorOfListOfShape itCE(ConnectedEdges);
1152 for(; anExp.More(), itCE.More(); anExp.Next(), itCE.Next())
1154 ECur = anExp.Current();
1155 TopExp::Vertices(ECur,VF,VL,Standard_True);
1156 U1 = BRep_Tool::Parameter(VF,ECur);
1157 U2 = BRep_Tool::Parameter(VL,ECur);
1158 Curve.Initialize(ECur);
1159 PPs = Curve.Value(0.1*(U1+9*U2));
1161 TopoDS_Edge E = TopoDS::Edge(itCE.Value());
1162 TopoDS_Vertex VVF,VVL;
1163 TopExp::Vertices(E,VVF,VVL,Standard_True);
1165 // parse candidate edges
1166 Standard_Real scal1,scal2;
1167 U1 = BRep_Tool::Parameter(VVF,E);
1168 U2 = BRep_Tool::Parameter(VVL,E);
1169 Curve.Initialize(E);
1170 gp_Pnt PP1 = Curve.Value(0.1*(U1+9*U2));
1171 gp_Pnt PP2 = Curve.Value(0.1*(9*U1+U2));
1173 for (rang=i;rang>ideb;rang--) {
1174 Transform(WithRotation, PP1,
1175 Pos->Value(rang), Axe->Value(rang),
1176 Pos->Value(rang-1), Axe->Value(rang-1), PP1);
1177 Transform(WithRotation, PP2,
1178 Pos->Value(rang), Axe->Value(rang),
1179 Pos->Value(rang-1), Axe->Value(rang-1), PP2);
1181 gp_Vec Ns(Pos->Value(ideb),PPs);
1182 Ns = Ns.Normalized();
1183 gp_Vec N1(Pos->Value(ideb),PP1);
1184 N1 = N1.Normalized();
1185 gp_Vec N2(Pos->Value(ideb),PP2);
1186 N2 = N2.Normalized();
1193 myWork(i) = MW.Wire();
1196 // blocking sections?
1197 if (vClosed) myWork(myWork.Length()) = myWork(1);
1199 // check the number of edges for debug
1200 Standard_Integer nbmax=0, nbmin=0;
1201 for ( i=ideb; i<=ifin; i++) {
1202 Standard_Integer nbEdges=0;
1203 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1206 if (i==ideb) nbmin = nbEdges;
1207 if (nbmax<nbEdges) nbmax = nbEdges;
1208 if (nbmin>nbEdges) nbmin = nbEdges;
1211 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByPolarMethod failed");
1216 //=======================================================================
1217 //function : SameNumberByACR
1219 //=======================================================================
1221 void BRepFill_CompatibleWires::SameNumberByACR(const Standard_Boolean report)
1223 // find the dimension
1224 Standard_Integer ideb=1, ifin=myWork.Length();
1225 BRepTools_WireExplorer anExp;
1227 // point sections, blocking sections?
1228 if (myDegen1) ideb++;
1229 if (myDegen2) ifin--;
1230 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1231 && (myWork(ideb).IsSame(myWork(ifin)));
1233 Standard_Integer nbSects = myWork.Length(), i;
1234 Standard_Integer nbmax=0, nbmin=0;
1235 TColStd_Array1OfInteger nbEdges(1,nbSects);
1236 for (i=1; i<=nbSects; i++) {
1238 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1241 if (i==1) nbmin = nbEdges(i);
1242 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
1243 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
1249 if (report || nbmin<nbmax) {
1250 // insertion of cuts
1251 Standard_Integer nbdec=(nbmax-1)*nbSects+1;
1252 TColStd_Array1OfReal dec(1,nbdec);
1256 TColStd_Array1OfReal WireLen(1, nbSects);
1258 // calculate the table of cuts
1259 Standard_Integer j,k,l;
1260 for (i=1; i<=nbSects; i++) {
1262 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
1263 Standard_Integer nbE = 0;
1264 for(anExp.Init(wire1); anExp.More(); anExp.Next()) {
1267 // length and ACR of the wire
1268 TColStd_Array1OfReal ACR(0,nbE);
1270 BRepFill::ComputeACR(wire1, ACR);
1271 WireLen(i) = ACR(0);
1272 // insertion of ACR of the wire in the table of cuts
1273 for (j=1; j<ACR.Length()-1; j++) {
1275 while (dec(k)<ACR(j)) {
1279 if (dec(k-1)<ACR(j)&& ACR(j)<dec(k)) {
1280 for (l=nbdec-1;l>=k;l--) {
1295 TColStd_Array1OfReal dec2(1,nbdec);
1296 for (k=1;k<=nbdec;k++) {
1300 //Check of cuts: are all the new edges long enouph or not
1301 TColStd_MapOfInteger CutsToRemove;
1302 for (k = 1; k <= nbdec; k++)
1304 Standard_Real Knot1 = dec2(k);
1305 Standard_Real Knot2 = (k == nbdec)? 1. : dec2(k+1);
1306 Standard_Real AllLengthsNull = Standard_True;
1307 for (i = 1; i <= nbSects; i++)
1309 Standard_Real EdgeLen = (Knot2 - Knot1) * WireLen(i);
1310 if (EdgeLen > Precision::Confusion())
1312 AllLengthsNull = Standard_False;
1317 CutsToRemove.Add(k);
1319 Standard_Integer NewNbDec = nbdec - CutsToRemove.Extent();
1320 TColStd_Array1OfReal dec3(1, NewNbDec);
1322 for (k = 1; k <= nbdec; k++)
1323 if (!CutsToRemove.Contains(k))
1324 dec3(i++) = dec2(k);
1327 // insertion of cuts in each wire
1328 for (i=1; i<=nbSects; i++) {
1329 const TopoDS_Wire& oldwire = TopoDS::Wire(myWork(i));
1330 Standard_Real tol = Precision::Confusion() / WireLen(i);
1331 TopoDS_Wire newwire = BRepFill::InsertACR(oldwire, dec3, tol);
1332 BRepTools_WireExplorer anExp1,anExp2;
1333 anExp1.Init(oldwire);
1334 anExp2.Init(newwire);
1335 for (;anExp1.More();anExp1.Next()) {
1336 const TopoDS_Edge& Ecur = anExp1.Current();
1337 if (!Ecur.IsSame(TopoDS::Edge(anExp2.Current()))) {
1338 TopTools_ListOfShape LE;
1341 const TopoDS_Vertex& V1 = anExp1.CurrentVertex();
1342 TopoDS_Vertex VF,VR;
1343 TopExp::Vertices(Ecur,VF,VR,Standard_True);
1344 if (V1.IsSame(VF)) P1 = BRep_Tool::Pnt(VR);
1345 if (V1.IsSame(VR)) P1 = BRep_Tool::Pnt(VF);
1346 TopoDS_Vertex V2 = anExp2.CurrentVertex();
1347 TopExp::Vertices(TopoDS::Edge(anExp2.Current()),
1348 VF,VR,Standard_True);
1349 if (V2.IsSame(VF)) P2 = BRep_Tool::Pnt(VR);
1350 if (V2.IsSame(VR)) P2 = BRep_Tool::Pnt(VF);
1351 while (P1.Distance(P2)>1.e-3) {
1352 LE.Append(anExp2.Current());
1354 V2 = anExp2.CurrentVertex();
1355 TopExp::Vertices(TopoDS::Edge(anExp2.Current()),
1356 VF,VR,Standard_True);
1357 if (V2.IsSame(VF)) P2 = BRep_Tool::Pnt(VR);
1358 if (V2.IsSame(VR)) P2 = BRep_Tool::Pnt(VF);
1359 if (P1.Distance(P2)<=1.e-3) {
1360 LE.Append(anExp2.Current());
1365 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itmap;
1366 //TopTools_ListIteratorOfListOfShape itlist;
1367 TopoDS_Edge Ancestor;
1368 Standard_Integer nbedge, nblist=0;
1369 Standard_Boolean found = Standard_False;
1371 for (itmap.Initialize(myMap);itmap.More()&&(!found);itmap.Next()) {
1373 TopTools_ListIteratorOfListOfShape itlist(itmap.Value());
1375 while (itlist.More()&&(!found)) {
1377 TopoDS_Edge ECur = TopoDS::Edge(itlist.Value());
1379 if (Ecur.IsSame(ECur)) {
1380 Ancestor = TopoDS::Edge(itmap.Key());
1381 found = Standard_True;
1382 myMap(Ancestor).InsertBefore(LE,itlist);
1383 myMap(Ancestor).Remove(itlist);
1385 if (itlist.More()) itlist.Next();
1396 myWork(i) = newwire;
1402 // blocking sections ?
1403 if (vClosed) myWork(myWork.Length()) = myWork(1);
1405 // check the number of edges for debug
1407 for (i=ideb; i<=ifin; i++) {
1409 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1412 if (i==ideb) nbmin = nbEdges(i);
1413 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
1414 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
1417 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByACR failed");
1420 //=======================================================================
1421 //function : ComputeOrigin
1423 //=======================================================================
1425 void BRepFill_CompatibleWires::ComputeOrigin(const Standard_Boolean /*polar*/ )
1427 // reorganize the wires respecting orientation and origin
1429 TopoDS_Vertex Vdeb, Vfin;
1430 gp_Pnt Pdeb, Psuiv, PPs;
1432 BRepTools_WireExplorer anExp;
1434 Standard_Boolean wClosed, allClosed = Standard_True;
1436 Standard_Integer NbSects = myWork.Length();
1437 Standard_Integer i, ideb=1,ifin=NbSects;
1439 // point sections, blocking sections
1440 if (myDegen1) ideb++;
1441 if (myDegen2) ifin--;
1442 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1443 && (myWork(ideb).IsSame(myWork(ifin)));
1446 for (i=ideb; i<=ifin; i++) {
1447 wClosed = myWork(i).Closed();
1449 // check if the vertices are the same.
1450 TopoDS_Vertex V1, V2;
1451 TopExp::Vertices(TopoDS::Wire(myWork(i)),V1,V2);
1452 if ( V1.IsSame(V2)) wClosed = Standard_True;
1454 allClosed = (allClosed && wClosed);
1457 for (i=ideb; i<=ifin; i++) {
1458 allClosed = (allClosed && myWork(i).Closed());
1462 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::ComputeOrigin : the wires must be closed");
1465 // Max number of possible cuts
1466 Standard_Integer NbMaxV = 0;
1467 for (i=1; i<=NbSects; i++) {
1468 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1473 // construction of tables of planes of wires
1475 Handle(TColgp_HArray1OfPnt) Pos
1476 = new (TColgp_HArray1OfPnt) (1,NbSects);
1477 Handle(TColgp_HArray1OfVec) Axe
1478 = new (TColgp_HArray1OfVec) (1,NbSects);
1479 for (i=ideb;i<=ifin;i++) {
1480 if (PlaneOfWire(TopoDS::Wire(myWork(i)),P)) {
1481 Pos->SetValue(i,P.Location());
1482 Axe->SetValue(i,gp_Vec(P.Axis().Direction()));
1485 TopTools_SequenceOfShape SeqV;
1487 SeqOfVertices(TopoDS::Wire(myWork(1)),SeqV);
1488 Pos->SetValue(1,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
1489 Axe->SetValue(1,Axe->Value(ideb));
1492 SeqOfVertices(TopoDS::Wire(myWork(NbSects)),SeqV);
1493 Pos->SetValue(NbSects,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
1494 Axe->SetValue(NbSects,Axe->Value(ifin));
1498 //Consider that all wires have same number of edges (polar==Standard_False)
1499 TopTools_SequenceOfShape PrevSeq;
1500 TopTools_SequenceOfShape PrevEseq;
1501 Standard_Integer theLength = 0;
1502 const TopoDS_Wire& wire = TopoDS::Wire( myWork(ideb) );
1503 for (anExp.Init(wire); anExp.More(); anExp.Next())
1505 PrevSeq.Append(anExp.CurrentVertex());
1506 PrevEseq.Append(anExp.Current());
1510 Standard_Integer nbs, NbSamples = 0;
1514 PlaneOfWire(TopoDS::Wire(myWork(ideb)), FirstPlane);
1515 gp_Pnt FirstBary = FirstPlane.Location();
1516 gp_Vec NormalOfFirstPlane = FirstPlane.Axis().Direction();
1517 for (i = ideb+1; i <= ifin; i++)
1519 const TopoDS_Wire& wire = TopoDS::Wire(myWork(i));
1521 //Compute offset vector as current bary center projected on first plane
1522 //to first bary center
1524 PlaneOfWire(wire, CurPlane);
1525 gp_Pnt CurBary = CurPlane.Location();
1526 gp_Vec aVec(FirstBary, CurBary);
1527 gp_Vec anOffsetProj = (aVec * NormalOfFirstPlane) * NormalOfFirstPlane;
1528 CurBary.Translate(-anOffsetProj); //projected current bary center
1529 gp_Vec Offset(CurBary, FirstBary);
1531 TopoDS_Wire newwire;
1533 BB.MakeWire(newwire);
1535 TopTools_SequenceOfShape SeqVertices, SeqEdges;
1536 for (anExp.Init(wire); anExp.More(); anExp.Next())
1538 SeqVertices.Append( anExp.CurrentVertex() );
1539 SeqEdges.Append( anExp.Current() );
1542 Standard_Real MinSumDist = Precision::Infinite();
1543 Standard_Integer jmin = 1, j, k, n;
1544 Standard_Boolean forward = Standard_False;
1545 if (i == myWork.Length() && myDegen2)
1547 // last point section
1549 forward = Standard_True;
1552 for (j = 1; j <= theLength; j++)
1555 Standard_Real SumDist = 0.;
1556 for (k = j, n = 1; k <= theLength; k++, n++)
1558 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1559 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1560 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1561 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1562 SumDist += Pprev.Distance(P);
1565 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1566 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k));
1567 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1568 BRepAdaptor_Curve Ecurve(CurEdge);
1569 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1570 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1571 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1573 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1574 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1575 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1576 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1577 (Ecurve.FirstParameter() + nbs*SampleOnCur) :
1578 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur);
1579 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1580 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1581 SumDist += PonPrev.Distance(PonCur);
1585 for (k = 1; k < j; k++, n++)
1587 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1588 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1589 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1590 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1591 SumDist += Pprev.Distance(P);
1594 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1595 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k));
1596 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1597 BRepAdaptor_Curve Ecurve(CurEdge);
1598 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1599 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1600 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1602 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1603 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1604 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1605 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1606 (Ecurve.FirstParameter() + nbs*SampleOnCur) :
1607 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur);
1608 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1609 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1610 SumDist += PonPrev.Distance(PonCur);
1614 if (SumDist < MinSumDist)
1616 MinSumDist = SumDist;
1618 forward = Standard_True;
1623 for (k = j, n = 1; k >= 1; k--, n++)
1625 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1626 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1627 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1628 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1629 SumDist += Pprev.Distance(P);
1632 Standard_Integer k_cur = k-1;
1635 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1636 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k_cur));
1637 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1638 BRepAdaptor_Curve Ecurve(CurEdge);
1639 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1640 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1641 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1643 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1644 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1645 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1646 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1647 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur) :
1648 (Ecurve.FirstParameter() + nbs*SampleOnCur);
1649 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1650 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1651 SumDist += PonPrev.Distance(PonCur);
1655 for (k = theLength; k > j; k--, n++)
1657 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1658 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1659 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1660 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1661 SumDist += Pprev.Distance(P);
1664 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1665 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k-1));
1666 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1667 BRepAdaptor_Curve Ecurve(CurEdge);
1668 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1669 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1670 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1672 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1673 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1674 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1675 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1676 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur) :
1677 (Ecurve.FirstParameter() + nbs*SampleOnCur);
1678 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1679 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1680 SumDist += PonPrev.Distance(PonCur);
1684 if (SumDist < MinSumDist)
1686 MinSumDist = SumDist;
1688 forward = Standard_False;
1696 for (j = jmin; j <= theLength; j++)
1698 BB.Add( newwire, TopoDS::Edge(SeqEdges(j)) );
1699 PrevSeq.Append( SeqVertices(j) );
1700 PrevEseq.Append( SeqEdges(j) );
1702 for (j = 1; j < jmin; j++)
1704 BB.Add( newwire, TopoDS::Edge(SeqEdges(j)) );
1705 PrevSeq.Append( SeqVertices(j) );
1706 PrevEseq.Append( SeqEdges(j) );
1711 for (j = jmin-1; j >= 1; j--)
1713 TopoDS_Shape aLocalShape = SeqEdges(j).Reversed();
1714 BB.Add( newwire, TopoDS::Edge(aLocalShape) );
1715 //PrevSeq.Append( SeqVertices(j) );
1716 PrevEseq.Append( SeqEdges(j).Reversed() );
1718 for (j = theLength; j >= jmin; j--)
1720 TopoDS_Shape aLocalShape = SeqEdges(j).Reversed();
1721 BB.Add( newwire, TopoDS::Edge(aLocalShape) );
1722 //PrevSeq.Append( SeqVertices(j) );
1723 PrevEseq.Append( SeqEdges(j).Reversed() );
1725 for (j = jmin; j >= 1; j--)
1726 PrevSeq.Append( SeqVertices(j) );
1727 for (j = theLength; j > jmin; j--)
1728 PrevSeq.Append( SeqVertices(j) );
1731 newwire.Closed( Standard_True );
1732 newwire.Orientation( TopAbs_FORWARD );
1733 myWork(i) = newwire;
1735 #ifdef OCCT_DEBUG_EFV
1737 for ( i=ideb; i<=myWork.Length(); i++) {
1739 const TopoDS_Wire& wire = TopoDS::Wire(myWork(i));
1741 Standard_Integer nbEdges=0;
1742 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next())
1744 TopExp::Vertices(wire,Vdeb,Vfin);
1745 Standard_Boolean wClosed = wire.Closed();
1747 // on regarde quand meme si les vertex sont les memes.
1748 if ( Vdeb.IsSame(Vfin)) wClosed = Standard_True;
1752 TopoDS_Vertex Vsuiv, VF, VR;
1753 TopoDS_Wire newwire;
1755 BW.MakeWire(newwire);
1758 const TopoDS_Edge Ecur = TopoDS::Edge(anExp.Current());
1759 TopExp::Vertices(Ecur,VF,VR);
1760 if (Vdeb.IsSame(VF)) Vsuiv=VR;
1761 else if (Vdeb.IsSame(VR)) Vsuiv=VF;
1763 // par defaut on prend l'origine sur cette arete
1764 if (VR.IsSame(TopoDS::Vertex(anExp.CurrentVertex()))) {
1773 Pdeb=BRep_Tool::Pnt(Vdeb);
1774 Psuiv=BRep_Tool::Pnt(Vsuiv);
1775 Standard_Real U1 = BRep_Tool::Parameter(Vdeb,Ecur);
1776 Standard_Real U2 = BRep_Tool::Parameter(Vsuiv,Ecur);
1777 BRepAdaptor_Curve Curve(Ecur);
1778 PPs = Curve.Value(0.25*(U1+3*U2));
1779 myWork(ideb) = wire;
1782 // on ramene Pdeb, Psuiv et PPs dans le plan courant
1783 gp_Pnt Pnew,Pnext,PPn;
1784 Transform(Standard_True,Pdeb,Pos->Value(i-1),Axe->Value(i-1),
1785 Pos->Value(i),Axe->Value(i),Pnew);
1786 Transform(Standard_True,Psuiv,Pos->Value(i-1),Axe->Value(i-1),
1787 Pos->Value(i),Axe->Value(i),Pnext);
1788 Transform(Standard_True,PPs,Pos->Value(i-1),Axe->Value(i-1),
1789 Pos->Value(i),Axe->Value(i),PPn);
1791 Standard_Real distmini,dist;
1792 Standard_Integer rang=0,rangdeb=0;
1793 TopoDS_Vertex Vmini;
1795 SeqOfVertices(wire,SeqV);
1796 if (SeqV.Length()>NbMaxV)
1797 Standard_NoSuchObject::Raise("BRepFill::ComputeOrigin failed");
1799 // choix du vertex le plus proche comme origine
1800 distmini = Precision::Infinite();
1801 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
1802 P1 = BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(ii)));
1803 dist = P1.Distance(Pnew);
1804 if (dist<distmini) {
1806 Vmini = TopoDS::Vertex(SeqV.Value(ii));
1809 if (!Vmini.IsNull()) Pmini = BRep_Tool::Pnt(Vmini);
1813 // recherche du vertex correspondant a la projection conique
1814 Standard_Real angmin, angV, eta = Precision::Angular();
1815 TopoDS_Vertex Vopti;
1817 distmini = Precision::Infinite();
1818 gp_Dir dir0(gp_Vec(Pnew,P.Location()));
1819 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
1820 P1 = BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(ii)));
1821 dist = Pnew.Distance(P1);
1822 if (dist<Precision::Confusion()) {
1826 gp_Dir dir1(gp_Vec(Pnew,P1));
1827 angV = dir1.Angle(dir0);
1829 if (angV>M_PI/2) angV = M_PI - angV;
1830 if (angmin>angV+eta) {
1833 Vopti = TopoDS::Vertex(SeqV.Value(ii));
1835 else if (Abs(angmin-angV)<eta) {
1836 if (dist<distmini) {
1839 Vopti = TopoDS::Vertex(SeqV.Value(ii));
1844 if (!Vopti.IsNull()) Popti = BRep_Tool::Pnt(Vopti);
1849 distmini = Precision::Infinite();
1850 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1851 TopoDS_Edge Ecur = anExp.Current();
1852 TopoDS_Vertex Vcur = anExp.CurrentVertex();
1853 TopExp::Vertices(Ecur,VF,VR);
1854 if (VF.IsSame(Vmini)) {
1855 P1 = BRep_Tool::Pnt(VR);
1856 dist = P1.Distance(Pnext);
1857 if (dist<=distmini) {
1862 if (VR.IsSame(Vmini)) {
1863 P1 = BRep_Tool::Pnt(VF);
1864 dist = P1.Distance(Pnext);
1865 if (dist<distmini) {
1872 // choix du sens de parcours en fonction de Pnext
1873 Standard_Boolean parcours = Standard_False;
1874 if (i==myWork.Length() && myDegen2) {
1875 // derniere section ponctuelle
1877 parcours = Standard_True;
1881 gp_Pnt Pbout = Pnext;
1883 TopoDS_Vertex V1,V2;
1884 EdgesFromVertex(wire,Vmini,E1,E2);
1886 TopExp::Vertices(E1,V1,V2,Standard_True);
1888 Standard_Real U1=0, U2=0;
1890 Standard_Real U1, U2;
1892 if (Vmini.IsSame(V1)) {
1893 P1 = BRep_Tool::Pnt(V2);
1894 U1 = 0.25*(BRep_Tool::Parameter(V1,E1)+3*BRep_Tool::Parameter(V2,E1));
1896 if (Vmini.IsSame(V2)) {
1897 P1 = BRep_Tool::Pnt(V1);
1898 U1 = 0.25*(3*BRep_Tool::Parameter(V1,E1)+BRep_Tool::Parameter(V2,E1));
1901 TopExp::Vertices(E2,V1,V2,Standard_True);
1902 if (Vmini.IsSame(V1)) {
1903 P2 = BRep_Tool::Pnt(V2);
1904 U2 = 0.25*(BRep_Tool::Parameter(V1,E2)+3*BRep_Tool::Parameter(V2,E2));
1906 if (Vmini.IsSame(V2)) {
1907 P2 = BRep_Tool::Pnt(V1);
1908 U2 = 0.25*(3*BRep_Tool::Parameter(V1,E2)+BRep_Tool::Parameter(V2,E2));
1911 if (Abs(Pbout.Distance(P1)-Pbout.Distance(P2))<Precision::Confusion()) {
1912 // cas limite ; on se decale un peu
1914 BRepAdaptor_Curve Curve1(E1);
1915 P1 = Curve1.Value(U1);
1916 BRepAdaptor_Curve Curve2(E2);
1917 P2 = Curve2.Value(U2);
1920 // calcul de rangdeb
1922 if (Pbout.Distance(P1)<Pbout.Distance(P2)){
1923 // P1 est plus proche; parcours = False
1924 parcours = Standard_False;
1926 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1928 TopoDS_Edge Ecur = anExp.Current();
1929 if (E1.IsSame(Ecur)) {
1933 BRepAdaptor_Curve Curve(E1);
1934 PPs = Curve.Value(U1);
1937 // P2 est plus proche; parcours = True
1938 parcours = Standard_True;
1940 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1942 TopoDS_Edge Ecur = anExp.Current();
1943 if (E2.IsSame(Ecur)) {
1947 BRepAdaptor_Curve Curve(E2);
1948 PPs = Curve.Value(U2);
1952 // reconstruction du wire a partir de rangdeb
1953 TopTools_SequenceOfShape SeqEdges;
1955 for (anExp.Init(TopoDS::Wire(wire)); anExp.More(); anExp.Next()) {
1956 SeqEdges.Append(anExp.Current());
1959 for (rang=rangdeb;rang<=nbEdges;rang++) {
1960 BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
1962 for (rang=1;rang<rangdeb;rang++) {
1963 BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
1967 for (rang=rangdeb;rang>=1;rang--) {
1968 TopoDS_Shape aLocalShape = SeqEdges.Value(rang).Reversed();
1969 BW.Add(newwire,TopoDS::Edge(aLocalShape));
1970 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
1972 for (rang=nbEdges;rang>rangdeb;rang--) {
1973 TopoDS_Shape aLocalShape = SeqEdges.Value(rang).Reversed();
1974 BW.Add(newwire,TopoDS::Edge(aLocalShape));
1975 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
1979 myWork(i) = newwire.Oriented(TopAbs_FORWARD);
1981 // on passe au wire suivant
1982 if (!Vmini.IsNull()) Pdeb=BRep_Tool::Pnt(Vmini);
1983 if (!Vsuiv.IsNull()) Psuiv=BRep_Tool::Pnt(Vsuiv);
1988 // blocking sections ?
1989 if (vClosed) myWork(myWork.Length()) = myWork(1);
1992 //=======================================================================
1993 //function : SearchOrigin
1995 //=======================================================================
1997 void BRepFill_CompatibleWires::SearchOrigin()
1999 // reorganize the open wires respecting orientation and origin
2003 TopoDS_Vertex Vdeb, Vfin;
2004 gp_Pnt Pdeb, Pfin;//,Psuiv;
2006 BRepTools_WireExplorer anExp;
2008 Standard_Boolean allOpen = Standard_True;
2009 Standard_Integer ideb=1, ifin=myWork.Length();
2010 if (myDegen1) ideb++;
2011 if (myDegen2) ifin--;
2012 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
2013 && (myWork(ideb).IsSame(myWork(ifin)));
2015 // for (Standard_Integer i=ideb; i<=ifin; i++) {
2017 for (i=ideb; i<=ifin; i++) {
2018 allOpen = (allOpen && !myWork(i).Closed());
2021 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SearchOrigin : the wires must be open");
2025 TopoDS_Wire wire1 = TopoDS::Wire(myWork(ideb));
2026 wire1.Orientation(TopAbs_FORWARD);
2027 TopExp::Vertices(wire1,Vdeb,Vfin);
2028 Pdeb = BRep_Tool::Pnt(Vdeb);
2029 Pfin = BRep_Tool::Pnt(Vfin);
2030 Standard_Boolean isline0 = (!PlaneOfWire(wire1,P0)), isline;
2031 myWork(ideb) = wire1;
2034 TopoDS_Edge E0 = anExp.Current(), E;
2036 for ( i=ideb+1; i<=ifin; i++) {
2038 TopoDS_Wire wire = TopoDS::Wire(myWork(i));
2039 wire.Orientation(TopAbs_FORWARD);
2041 TopTools_SequenceOfShape SeqEdges;
2043 Standard_Integer nbEdges=0;
2044 //OCC86 for(anExp.Init(wire); anExp.More(); anExp.Next()) {
2045 for(anExp.Init(wire), E = anExp.Current(); anExp.More(); anExp.Next()) {
2046 SeqEdges.Append(anExp.Current());
2049 TopExp::Vertices(wire,Vdeb,Vfin);
2050 isline = (!PlaneOfWire(wire,P));
2052 TopoDS_Vertex Vmini;
2053 TopoDS_Wire newwire;
2055 BW.MakeWire(newwire);
2056 Standard_Boolean parcours = Standard_True;
2058 if (isline0 || isline) {
2060 // particular case of straight segments
2061 gp_Pnt P1 = BRep_Tool::Pnt(Vdeb),
2062 P2 = BRep_Tool::Pnt(Vfin);
2063 Standard_Real dist1, dist2;
2064 dist1 = Pdeb.Distance(P1)+Pfin.Distance(P2);
2065 dist2 = Pdeb.Distance(P2)+Pfin.Distance(P1);
2066 parcours = (dist2>=dist1);
2071 gp_Pnt P1 = BRep_Tool::Pnt(Vdeb), P1o = Pdeb,
2072 P2 = BRep_Tool::Pnt(Vfin), P2o = Pfin;
2073 /* // return Pdeb in the current plane
2074 gp_Pnt Pnew = Pdeb.Translated (P0.Location(),P.Location());
2075 gp_Ax1 A0 = P0.Axis();
2076 gp_Ax1 A1 = P.Axis();
2078 if (!A0.IsParallel(A1,1.e-4)) {
2079 gp_Vec vec1(A0.Direction()), vec2(A1.Direction()),
2081 gp_Ax1 Norm(P.Location(),norm);
2082 Standard_Real ang = vec1.AngleWithRef(vec2,norm);
2085 if (ang < -M_PI/2.0)
2087 if (Abs(ang-M_PI/2.0)<Precision::Angular()) {
2089 gp_Vec Vtrans(P0.Location(),P.Location()),Vsign;
2090 Standard_Real alpha,beta,sign=1;
2091 Vsign.SetLinearForm(Vtrans.Dot(vec1),vec2,-Vtrans.Dot(vec2),vec1);
2092 alpha = Vsign.Dot(vec1);
2093 beta = Vsign.Dot(vec2);
2094 Standard_Boolean pasnul = (Abs(alpha)>1.e-4 && Abs(beta)>1.e-4);
2095 if ( alpha*beta>0.0 && pasnul ) sign=-1;
2098 Pnew = Pnew.Rotated (Norm,ang);
2100 // choix entre Vdeb et Vfin
2101 Standard_Real dist = Pnew.Distance(P1);
2102 parcours = (dist<Pnew.Distance(P2));
2104 if(P1.IsEqual(P2,Precision::Confusion()) || P1o.IsEqual(P2o,Precision::Confusion())){
2105 BRepAdaptor_Curve Curve0(E0), Curve(E);
2106 Curve0.D0(Curve0.FirstParameter() + Precision::Confusion(), P2o);
2107 Curve.D0(Curve.FirstParameter() + Precision::Confusion(), P2);
2109 gp_Vec VDebFin0(P1o,P2o), VDebFin(P1,P2);
2110 Standard_Real AStraight = VDebFin0.Angle(VDebFin);
2111 parcours = (AStraight < M_PI/2.0? Standard_True: Standard_False);
2114 // reconstruction of the wire
2115 Standard_Integer rang;
2117 for (rang=1;rang<=nbEdges;rang++) {
2118 TopoDS_Shape alocalshape = SeqEdges.Value(rang);
2119 BW.Add(newwire,TopoDS::Edge(alocalshape));
2120 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
2124 for (rang=nbEdges;rang>=1;rang--) {
2125 TopoDS_Shape alocalshape = SeqEdges.Value(rang).Reversed();
2126 BW.Add(newwire,TopoDS::Edge(alocalshape));
2127 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
2131 // orientation of the wire
2132 newwire.Oriented(TopAbs_FORWARD);
2133 myWork(i) = newwire;
2135 // passe to the next wire
2137 Pdeb = BRep_Tool::Pnt(Vdeb);
2138 Pfin = BRep_Tool::Pnt(Vfin);
2141 Pfin = BRep_Tool::Pnt(Vdeb);
2142 Pdeb = BRep_Tool::Pnt(Vfin);
2150 // blocking sections ?
2151 if (vClosed) myWork(myWork.Length()) = myWork(1);