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.
18 #include <Bnd_Box.hxx>
19 #include <BRep_Builder.hxx>
20 #include <BRep_Tool.hxx>
21 #include <BRepAdaptor_Curve.hxx>
22 #include <BRepBndLib.hxx>
23 #include <BRepCheck_Wire.hxx>
24 #include <BRepExtrema_DistShapeShape.hxx>
25 #include <BRepFill.hxx>
26 #include <BRepFill_CompatibleWires.hxx>
27 #include <BRepGProp.hxx>
28 #include <BRepLib.hxx>
29 #include <BRepLib_FindSurface.hxx>
30 #include <BRepLib_MakeEdge.hxx>
31 #include <BRepLib_MakeWire.hxx>
32 #include <BRepLProp.hxx>
33 #include <BRepTools_WireExplorer.hxx>
34 #include <Geom_Plane.hxx>
35 #include <Geom_Surface.hxx>
38 #include <gp_Circ.hxx>
39 #include <gp_Elips.hxx>
42 #include <GProp_GProps.hxx>
43 #include <GProp_PrincipalProps.hxx>
44 #include <Precision.hxx>
45 #include <Standard_ConstructionError.hxx>
46 #include <Standard_NoSuchObject.hxx>
47 #include <TColgp_HArray1OfPnt.hxx>
48 #include <TColgp_HArray1OfVec.hxx>
49 #include <TColStd_Array1OfInteger.hxx>
50 #include <TColStd_Array1OfReal.hxx>
51 #include <TColStd_MapOfInteger.hxx>
52 #include <TColStd_SequenceOfReal.hxx>
55 #include <TopExp_Explorer.hxx>
57 #include <TopoDS_Edge.hxx>
58 #include <TopoDS_Wire.hxx>
59 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
60 #include <TopTools_DataMapOfShapeListOfShape.hxx>
61 #include <TopTools_HSequenceOfShape.hxx>
62 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
63 #include <TopTools_ListIteratorOfListOfShape.hxx>
64 #include <TopTools_ListOfShape.hxx>
65 #include <TopTools_SequenceOfShape.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;
856 Standard_Boolean allClosed = Standard_True;
857 Standard_Integer i,ii,ideb=1,ifin=NbSects;
858 for (i=1; i<=NbSects; i++) {
859 Handle(BRepCheck_Wire) Checker = new BRepCheck_Wire(TopoDS::Wire(myWork(i)));
860 allClosed = (allClosed && (Checker->Closed() == BRepCheck_NoError));
861 //allClosed = (allClosed && myWork(i).Closed());
864 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByPolarMethod : the wires must be closed");
866 // sections ponctuelles, sections bouclantes ?
867 if (myDegen1) ideb++;
868 if (myDegen2) ifin--;
869 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
870 && (myWork(ideb).IsSame(myWork(ifin)));
872 //Removing degenerated edges
873 for (i = ideb; i <= ifin; i++)
875 Standard_Boolean hasDegEdge = Standard_False;
876 TopoDS_Iterator anItw(myWork(i));
877 for (; anItw.More(); anItw.Next())
879 const TopoDS_Edge& anEdge = TopoDS::Edge(anItw.Value());
880 if (BRep_Tool::Degenerated(anEdge))
882 hasDegEdge = Standard_True;
888 TopoDS_Wire aNewWire;
889 BRep_Builder aBBuilder;
890 aBBuilder.MakeWire(aNewWire);
891 for (anItw.Initialize(myWork(i)); anItw.More(); anItw.Next())
893 const TopoDS_Edge& anEdge = TopoDS::Edge(anItw.Value());
894 if (!BRep_Tool::Degenerated(anEdge))
895 aBBuilder.Add(aNewWire, anEdge);
897 myWork(i) = aNewWire;
901 // Nombre max de decoupes possibles
902 Standard_Integer NbMaxV = 0;
903 for (i=1; i<=NbSects; i++) {
904 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
909 // construction of tables of planes of wires
911 Handle(TColgp_HArray1OfPnt) Pos
912 = new (TColgp_HArray1OfPnt) (1,NbSects);
913 Handle(TColgp_HArray1OfVec) Axe
914 = new (TColgp_HArray1OfVec) (1,NbSects);
915 for (i=ideb;i<=ifin;i++) {
916 if (PlaneOfWire(TopoDS::Wire(myWork(i)),P)) {
917 Pos->SetValue(i,P.Location());
918 Axe->SetValue(i,gp_Vec(P.Axis().Direction()));
921 TopTools_SequenceOfShape SeqV;
923 SeqOfVertices(TopoDS::Wire(myWork(1)),SeqV);
924 Pos->SetValue(1,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
925 Axe->SetValue(1,Axe->Value(ideb));
928 SeqOfVertices(TopoDS::Wire(myWork(NbSects)),SeqV);
929 Pos->SetValue(NbSects,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
930 Axe->SetValue(NbSects,Axe->Value(ifin));
933 // construction of RMap, map of reports of wire i to wire i-1
934 TopTools_DataMapOfShapeListOfShape RMap;
938 for (i=ifin; i>ideb; i--) {
940 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
942 // sequence of vertices of the first wire
943 SeqOfVertices(wire1,SeqV);
944 if (SeqV.Length()>NbMaxV)
945 Standard_NoSuchObject::Raise("BRepFill::SameNumberByPolarMethod failed");
947 // loop on vertices of wire1
948 for (ii=1;ii<=SeqV.Length();ii++) {
950 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
952 // init of RMap for Vi
953 TopTools_ListOfShape Init;
957 // it is required to find intersection Vi - wire2
958 gp_Pnt Pi = BRep_Tool::Pnt(Vi);
960 // return Pi in the current plane
962 Transform(WithRotation,Pi,
963 Pos->Value(i),Axe->Value(i),
964 Pos->Value(i-1),Axe->Value(i-1),Pnew);
966 // calculate the intersection
967 TopoDS_Shape Support;
968 Standard_Boolean NewVertex;
971 if (Pnew.Distance(Pos->Value(i-1))>Precision::Confusion()) {
972 Standard_Real percent = myPercent;
973 NewVertex = EdgeIntersectOnWire(Pos->Value(i-1),Pnew,percent,
974 RMap,TopoDS::Wire(myWork(i-1)),
976 if (NewVertex) myWork(i-1) = newwire;
977 RMap(Vi).Append(Vsol);
983 // initialisation of MapVLV, map of correspondences vertex - list of vertices
984 TopTools_DataMapOfShapeListOfShape MapVLV;
985 SeqOfVertices(TopoDS::Wire(myWork(ideb)),SeqV);
986 Standard_Integer SizeMap = SeqV.Length();
988 for (ii=1;ii<=SizeMap;ii++) {
989 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
990 TopTools_ListOfShape Init;
993 MapVLV.Bind(Vi,Init);
994 Standard_Integer NbV = 1;
997 Standard_Boolean tantque = SearchRoot(V0,RMap,V1);
999 MapVLV(Vi).Append(V1);
1001 // test on NbV required for looping sections
1002 if (V1.IsSame(Vi) || NbV >= myWork.Length()) {
1003 tantque = Standard_False;
1007 tantque = SearchRoot(V0,RMap,V1);
1013 for (i=ideb; i<ifin; i++) {
1015 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
1017 // sequence of vertices of the first wire
1018 SeqOfVertices(wire1,SeqV);
1019 if ( SeqV.Length()>NbMaxV || SeqV.Length()>SizeMap )
1020 Standard_NoSuchObject::Raise("BRepFill::SameNumberByPolarMethod failed");
1024 const TopoDS_Wire& wire2 = TopoDS::Wire(myWork(i+1));
1026 // loop on vertices of wire1
1027 for (ii=1;ii<=SeqV.Length();ii++) {
1029 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
1030 TopoDS_Vertex VRoot;
1032 Standard_Boolean intersect = Standard_True;
1033 if (SearchRoot(Vi,MapVLV,VRoot)) {
1034 const TopTools_ListOfShape& LVi = MapVLV(VRoot);
1037 intersect = (!SearchVertex(LVi,wire2,VonW));
1041 // it is necessary to find intersection Vi - wire2
1042 gp_Pnt Pi = BRep_Tool::Pnt(Vi);
1044 // return Pi in the current plane
1046 Transform(WithRotation,Pi,
1047 Pos->Value(i),Axe->Value(i),
1048 Pos->Value(i+1),Axe->Value(i+1),Pnew);
1050 // calculate the intersection
1051 TopoDS_Shape Support;
1052 Standard_Boolean NewVertex;
1054 TopoDS_Wire newwire;
1055 if (Pnew.Distance(Pos->Value(i+1))>Precision::Confusion()) {
1056 Standard_Real percent = myPercent;
1057 NewVertex = EdgeIntersectOnWire(Pos->Value(i+1),Pnew,percent,
1058 MapVLV,TopoDS::Wire(myWork(i+1)),
1060 MapVLV(VRoot).Append(Vsol);
1061 if (NewVertex) myWork(i+1) = newwire;
1068 // regularize wires following MapVLV
1069 TopoDS_Wire wire = TopoDS::Wire(myWork(ideb));
1071 // except for the last if the sections loop
1072 Standard_Integer ibout = ifin;
1073 if (vClosed) ibout--;
1075 for ( i=ideb+1; i<=ibout; i++) {
1077 BRepLib_MakeWire MW;
1080 TopoDS_Edge ECur = anExp.Current();
1081 TopoDS_Vertex VF,VL;
1082 TopExp::Vertices(ECur,VF,VL,Standard_True);
1083 Standard_Real U1 = BRep_Tool::Parameter(VF,ECur);
1084 Standard_Real U2 = BRep_Tool::Parameter(VL,ECur);
1085 BRepAdaptor_Curve Curve(ECur);
1086 gp_Pnt PPs = Curve.Value(0.1*(U1+9*U2));
1087 TopTools_ListIteratorOfListOfShape itF(MapVLV(VF)),itL(MapVLV(VL));
1088 Standard_Integer rang = ideb;
1094 TopoDS_Vertex V1 = TopoDS::Vertex(itF.Value()), V2 = TopoDS::Vertex(itL.Value());
1096 Standard_Real scalmax=0.;
1097 TopoDS_Iterator itW( myWork(i) );
1099 for(; itW.More(); itW.Next())
1101 TopoDS_Edge E = TopoDS::Edge(itW.Value());
1102 TopoDS_Vertex VVF,VVL;
1103 TopExp::Vertices(E,VVF,VVL,Standard_True);
1105 // parse candidate edges
1106 Standard_Real scal1,scal2;
1107 if ( (V1.IsSame(VVF)&&V2.IsSame(VVL)) || (V2.IsSame(VVF)&&V1.IsSame(VVL)) ) {
1108 Standard_Real U1param = BRep_Tool::Parameter(VVF,E);
1109 Standard_Real U2param = BRep_Tool::Parameter(VVL,E);
1110 BRepAdaptor_Curve CurveE(E);
1111 gp_Pnt PP1 = CurveE.Value(0.1*(U1param +9* U2param));
1112 gp_Pnt PP2 = CurveE.Value(0.1*(9* U1param + U2param));
1114 for (rang=i;rang>ideb;rang--) {
1115 Transform(WithRotation, PP1,
1116 Pos->Value(rang), Axe->Value(rang),
1117 Pos->Value(rang-1), Axe->Value(rang-1), PP1);
1118 Transform(WithRotation, PP2,
1119 Pos->Value(rang), Axe->Value(rang),
1120 Pos->Value(rang-1), Axe->Value(rang-1), PP2);
1122 gp_Vec Ns(Pos->Value(ideb),PPs);
1123 Ns = Ns.Normalized();
1124 gp_Vec N1(Pos->Value(ideb),PP1);
1125 N1 = N1.Normalized();
1126 gp_Vec N2(Pos->Value(ideb),PP2);
1127 N2 = N2.Normalized();
1129 if (scal1>scalmax) {
1134 if (scal2>scalmax) {
1136 TopoDS_Shape aLocalShape = E.Reversed();
1137 Esol = TopoDS::Edge(aLocalShape);
1140 } //end of for(; itW.More(); itW.Next())
1142 Standard_ConstructionError::Raise("BRepFill :: profiles are inconsistent");
1145 TopTools_ListOfShape ConnectedEdges;
1146 BuildConnectedEdges( TopoDS::Wire(myWork(i)), Esol, V2, ConnectedEdges );
1148 TopTools_ListIteratorOfListOfShape itCE(ConnectedEdges);
1149 for(; anExp.More(), itCE.More(); anExp.Next(), itCE.Next())
1151 ECur = anExp.Current();
1152 TopExp::Vertices(ECur,VF,VL,Standard_True);
1153 U1 = BRep_Tool::Parameter(VF,ECur);
1154 U2 = BRep_Tool::Parameter(VL,ECur);
1155 Curve.Initialize(ECur);
1156 PPs = Curve.Value(0.1*(U1+9*U2));
1158 TopoDS_Edge E = TopoDS::Edge(itCE.Value());
1159 TopoDS_Vertex VVF,VVL;
1160 TopExp::Vertices(E,VVF,VVL,Standard_True);
1162 // parse candidate edges
1163 Standard_Real scal1,scal2;
1164 U1 = BRep_Tool::Parameter(VVF,E);
1165 U2 = BRep_Tool::Parameter(VVL,E);
1166 Curve.Initialize(E);
1167 gp_Pnt PP1 = Curve.Value(0.1*(U1+9*U2));
1168 gp_Pnt PP2 = Curve.Value(0.1*(9*U1+U2));
1170 for (rang=i;rang>ideb;rang--) {
1171 Transform(WithRotation, PP1,
1172 Pos->Value(rang), Axe->Value(rang),
1173 Pos->Value(rang-1), Axe->Value(rang-1), PP1);
1174 Transform(WithRotation, PP2,
1175 Pos->Value(rang), Axe->Value(rang),
1176 Pos->Value(rang-1), Axe->Value(rang-1), PP2);
1178 gp_Vec Ns(Pos->Value(ideb),PPs);
1179 Ns = Ns.Normalized();
1180 gp_Vec N1(Pos->Value(ideb),PP1);
1181 N1 = N1.Normalized();
1182 gp_Vec N2(Pos->Value(ideb),PP2);
1183 N2 = N2.Normalized();
1190 myWork(i) = MW.Wire();
1193 // blocking sections?
1194 if (vClosed) myWork(myWork.Length()) = myWork(1);
1196 // check the number of edges for debug
1197 Standard_Integer nbmax=0, nbmin=0;
1198 for ( i=ideb; i<=ifin; i++) {
1199 Standard_Integer nbEdges=0;
1200 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1203 if (i==ideb) nbmin = nbEdges;
1204 if (nbmax<nbEdges) nbmax = nbEdges;
1205 if (nbmin>nbEdges) nbmin = nbEdges;
1208 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByPolarMethod failed");
1213 //=======================================================================
1214 //function : SameNumberByACR
1216 //=======================================================================
1218 void BRepFill_CompatibleWires::SameNumberByACR(const Standard_Boolean report)
1220 // find the dimension
1221 Standard_Integer ideb=1, ifin=myWork.Length();
1222 BRepTools_WireExplorer anExp;
1224 // point sections, blocking sections?
1225 if (myDegen1) ideb++;
1226 if (myDegen2) ifin--;
1227 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1228 && (myWork(ideb).IsSame(myWork(ifin)));
1230 Standard_Integer nbSects = myWork.Length(), i;
1231 Standard_Integer nbmax=0, nbmin=0;
1232 TColStd_Array1OfInteger nbEdges(1,nbSects);
1233 for (i=1; i<=nbSects; i++) {
1235 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1238 if (i==1) nbmin = nbEdges(i);
1239 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
1240 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
1246 if (report || nbmin<nbmax) {
1247 // insertion of cuts
1248 Standard_Integer nbdec=(nbmax-1)*nbSects+1;
1249 TColStd_Array1OfReal dec(1,nbdec);
1253 TColStd_Array1OfReal WireLen(1, nbSects);
1255 // calculate the table of cuts
1256 Standard_Integer j,k,l;
1257 for (i=1; i<=nbSects; i++) {
1259 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
1260 Standard_Integer nbE = 0;
1261 for(anExp.Init(wire1); anExp.More(); anExp.Next()) {
1264 // length and ACR of the wire
1265 TColStd_Array1OfReal ACR(0,nbE);
1267 BRepFill::ComputeACR(wire1, ACR);
1268 WireLen(i) = ACR(0);
1269 // insertion of ACR of the wire in the table of cuts
1270 for (j=1; j<ACR.Length()-1; j++) {
1272 while (dec(k)<ACR(j)) {
1276 if (dec(k-1)<ACR(j)&& ACR(j)<dec(k)) {
1277 for (l=nbdec-1;l>=k;l--) {
1292 TColStd_Array1OfReal dec2(1,nbdec);
1293 for (k=1;k<=nbdec;k++) {
1297 //Check of cuts: are all the new edges long enouph or not
1298 TColStd_MapOfInteger CutsToRemove;
1299 for (k = 1; k <= nbdec; k++)
1301 Standard_Real Knot1 = dec2(k);
1302 Standard_Real Knot2 = (k == nbdec)? 1. : dec2(k+1);
1303 Standard_Real AllLengthsNull = Standard_True;
1304 for (i = 1; i <= nbSects; i++)
1306 Standard_Real EdgeLen = (Knot2 - Knot1) * WireLen(i);
1307 if (EdgeLen > Precision::Confusion())
1309 AllLengthsNull = Standard_False;
1314 CutsToRemove.Add(k);
1316 Standard_Integer NewNbDec = nbdec - CutsToRemove.Extent();
1317 TColStd_Array1OfReal dec3(1, NewNbDec);
1319 for (k = 1; k <= nbdec; k++)
1320 if (!CutsToRemove.Contains(k))
1321 dec3(i++) = dec2(k);
1324 // insertion of cuts in each wire
1325 for (i=1; i<=nbSects; i++) {
1326 const TopoDS_Wire& oldwire = TopoDS::Wire(myWork(i));
1327 Standard_Real tol = Precision::Confusion() / WireLen(i);
1328 TopoDS_Wire newwire = BRepFill::InsertACR(oldwire, dec3, tol);
1329 BRepTools_WireExplorer anExp1,anExp2;
1330 anExp1.Init(oldwire);
1331 anExp2.Init(newwire);
1332 for (;anExp1.More();anExp1.Next()) {
1333 const TopoDS_Edge& Ecur = anExp1.Current();
1334 if (!Ecur.IsSame(TopoDS::Edge(anExp2.Current()))) {
1335 TopTools_ListOfShape LE;
1338 const TopoDS_Vertex& V1 = anExp1.CurrentVertex();
1339 TopoDS_Vertex VF,VR;
1340 TopExp::Vertices(Ecur,VF,VR,Standard_True);
1341 if (V1.IsSame(VF)) P1 = BRep_Tool::Pnt(VR);
1342 if (V1.IsSame(VR)) P1 = BRep_Tool::Pnt(VF);
1343 TopoDS_Vertex V2 = anExp2.CurrentVertex();
1344 TopExp::Vertices(TopoDS::Edge(anExp2.Current()),
1345 VF,VR,Standard_True);
1346 if (V2.IsSame(VF)) P2 = BRep_Tool::Pnt(VR);
1347 if (V2.IsSame(VR)) P2 = BRep_Tool::Pnt(VF);
1348 while (P1.Distance(P2)>1.e-3) {
1349 LE.Append(anExp2.Current());
1351 V2 = anExp2.CurrentVertex();
1352 TopExp::Vertices(TopoDS::Edge(anExp2.Current()),
1353 VF,VR,Standard_True);
1354 if (V2.IsSame(VF)) P2 = BRep_Tool::Pnt(VR);
1355 if (V2.IsSame(VR)) P2 = BRep_Tool::Pnt(VF);
1356 if (P1.Distance(P2)<=1.e-3) {
1357 LE.Append(anExp2.Current());
1362 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itmap;
1363 //TopTools_ListIteratorOfListOfShape itlist;
1364 TopoDS_Edge Ancestor;
1365 Standard_Integer nbedge, nblist=0;
1366 Standard_Boolean found = Standard_False;
1368 for (itmap.Initialize(myMap);itmap.More()&&(!found);itmap.Next()) {
1370 TopTools_ListIteratorOfListOfShape itlist(itmap.Value());
1372 while (itlist.More()&&(!found)) {
1374 TopoDS_Edge ECur = TopoDS::Edge(itlist.Value());
1376 if (Ecur.IsSame(ECur)) {
1377 Ancestor = TopoDS::Edge(itmap.Key());
1378 found = Standard_True;
1379 myMap(Ancestor).InsertBefore(LE,itlist);
1380 myMap(Ancestor).Remove(itlist);
1382 if (itlist.More()) itlist.Next();
1393 myWork(i) = newwire;
1399 // blocking sections ?
1400 if (vClosed) myWork(myWork.Length()) = myWork(1);
1402 // check the number of edges for debug
1404 for (i=ideb; i<=ifin; i++) {
1406 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1409 if (i==ideb) nbmin = nbEdges(i);
1410 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
1411 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
1414 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByACR failed");
1417 //=======================================================================
1418 //function : ComputeOrigin
1420 //=======================================================================
1422 void BRepFill_CompatibleWires::ComputeOrigin(const Standard_Boolean /*polar*/ )
1424 // reorganize the wires respecting orientation and origin
1426 TopoDS_Vertex Vdeb, Vfin;
1427 gp_Pnt Pdeb, Psuiv, PPs;
1429 BRepTools_WireExplorer anExp;
1431 Standard_Boolean wClosed, allClosed = Standard_True;
1433 Standard_Integer NbSects = myWork.Length();
1434 Standard_Integer i, ideb=1,ifin=NbSects;
1436 // point sections, blocking sections
1437 if (myDegen1) ideb++;
1438 if (myDegen2) ifin--;
1439 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1440 && (myWork(ideb).IsSame(myWork(ifin)));
1443 for (i=ideb; i<=ifin; i++) {
1444 wClosed = myWork(i).Closed();
1446 // check if the vertices are the same.
1447 TopoDS_Vertex V1, V2;
1448 TopExp::Vertices(TopoDS::Wire(myWork(i)),V1,V2);
1449 if ( V1.IsSame(V2)) wClosed = Standard_True;
1451 allClosed = (allClosed && wClosed);
1454 for (i=ideb; i<=ifin; i++) {
1455 allClosed = (allClosed && myWork(i).Closed());
1459 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::ComputeOrigin : the wires must be closed");
1462 // Max number of possible cuts
1463 Standard_Integer NbMaxV = 0;
1464 for (i=1; i<=NbSects; i++) {
1465 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1470 // construction of tables of planes of wires
1472 Handle(TColgp_HArray1OfPnt) Pos
1473 = new (TColgp_HArray1OfPnt) (1,NbSects);
1474 Handle(TColgp_HArray1OfVec) Axe
1475 = new (TColgp_HArray1OfVec) (1,NbSects);
1476 for (i=ideb;i<=ifin;i++) {
1477 if (PlaneOfWire(TopoDS::Wire(myWork(i)),P)) {
1478 Pos->SetValue(i,P.Location());
1479 Axe->SetValue(i,gp_Vec(P.Axis().Direction()));
1482 TopTools_SequenceOfShape SeqV;
1484 SeqOfVertices(TopoDS::Wire(myWork(1)),SeqV);
1485 Pos->SetValue(1,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
1486 Axe->SetValue(1,Axe->Value(ideb));
1489 SeqOfVertices(TopoDS::Wire(myWork(NbSects)),SeqV);
1490 Pos->SetValue(NbSects,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
1491 Axe->SetValue(NbSects,Axe->Value(ifin));
1495 //Consider that all wires have same number of edges (polar==Standard_False)
1496 TopTools_SequenceOfShape PrevSeq;
1497 TopTools_SequenceOfShape PrevEseq;
1498 Standard_Integer theLength = 0;
1499 const TopoDS_Wire& wire = TopoDS::Wire( myWork(ideb) );
1500 for (anExp.Init(wire); anExp.More(); anExp.Next())
1502 PrevSeq.Append(anExp.CurrentVertex());
1503 PrevEseq.Append(anExp.Current());
1507 Standard_Integer nbs, NbSamples = 0;
1511 PlaneOfWire(TopoDS::Wire(myWork(ideb)), FirstPlane);
1512 gp_Pnt FirstBary = FirstPlane.Location();
1513 gp_Vec NormalOfFirstPlane = FirstPlane.Axis().Direction();
1514 for (i = ideb+1; i <= ifin; i++)
1516 const TopoDS_Wire& aWire = TopoDS::Wire(myWork(i));
1518 //Compute offset vector as current bary center projected on first plane
1519 //to first bary center
1521 PlaneOfWire(aWire, CurPlane);
1522 gp_Pnt CurBary = CurPlane.Location();
1523 gp_Vec aVec(FirstBary, CurBary);
1524 gp_Vec anOffsetProj = (aVec * NormalOfFirstPlane) * NormalOfFirstPlane;
1525 CurBary.Translate(-anOffsetProj); //projected current bary center
1526 gp_Vec Offset(CurBary, FirstBary);
1528 TopoDS_Wire newwire;
1530 BB.MakeWire(newwire);
1532 TopTools_SequenceOfShape SeqVertices, SeqEdges;
1533 for (anExp.Init(aWire); anExp.More(); anExp.Next())
1535 SeqVertices.Append( anExp.CurrentVertex() );
1536 SeqEdges.Append( anExp.Current() );
1539 Standard_Real MinSumDist = Precision::Infinite();
1540 Standard_Integer jmin = 1, j, k, n;
1541 Standard_Boolean forward = Standard_False;
1542 if (i == myWork.Length() && myDegen2)
1544 // last point section
1546 forward = Standard_True;
1549 for (j = 1; j <= theLength; j++)
1552 Standard_Real SumDist = 0.;
1553 for (k = j, n = 1; k <= theLength; k++, n++)
1555 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1556 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1557 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1558 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1559 SumDist += Pprev.Distance(P);
1562 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1563 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k));
1564 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1565 BRepAdaptor_Curve Ecurve(CurEdge);
1566 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1567 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1568 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1570 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1571 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1572 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1573 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1574 (Ecurve.FirstParameter() + nbs*SampleOnCur) :
1575 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur);
1576 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1577 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1578 SumDist += PonPrev.Distance(PonCur);
1582 for (k = 1; k < j; k++, n++)
1584 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1585 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1586 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1587 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1588 SumDist += Pprev.Distance(P);
1591 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1592 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k));
1593 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1594 BRepAdaptor_Curve Ecurve(CurEdge);
1595 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1596 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1597 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1599 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1600 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1601 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1602 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1603 (Ecurve.FirstParameter() + nbs*SampleOnCur) :
1604 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur);
1605 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1606 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1607 SumDist += PonPrev.Distance(PonCur);
1611 if (SumDist < MinSumDist)
1613 MinSumDist = SumDist;
1615 forward = Standard_True;
1620 for (k = j, n = 1; k >= 1; k--, n++)
1622 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1623 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1624 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1625 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1626 SumDist += Pprev.Distance(P);
1629 Standard_Integer k_cur = k-1;
1632 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1633 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k_cur));
1634 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1635 BRepAdaptor_Curve Ecurve(CurEdge);
1636 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1637 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1638 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1640 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1641 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1642 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1643 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1644 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur) :
1645 (Ecurve.FirstParameter() + nbs*SampleOnCur);
1646 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1647 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1648 SumDist += PonPrev.Distance(PonCur);
1652 for (k = theLength; k > j; k--, n++)
1654 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1655 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1656 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1657 gp_Pnt P = BRep_Tool::Pnt(V).XYZ() + Offset.XYZ();
1658 SumDist += Pprev.Distance(P);
1661 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1662 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k-1));
1663 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1664 BRepAdaptor_Curve Ecurve(CurEdge);
1665 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1666 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1667 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1669 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1670 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1671 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1672 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1673 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur) :
1674 (Ecurve.FirstParameter() + nbs*SampleOnCur);
1675 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1676 gp_Pnt PonCur = Ecurve.Value(ParOnCur).XYZ() + Offset.XYZ();
1677 SumDist += PonPrev.Distance(PonCur);
1681 if (SumDist < MinSumDist)
1683 MinSumDist = SumDist;
1685 forward = Standard_False;
1693 for (j = jmin; j <= theLength; j++)
1695 BB.Add( newwire, TopoDS::Edge(SeqEdges(j)) );
1696 PrevSeq.Append( SeqVertices(j) );
1697 PrevEseq.Append( SeqEdges(j) );
1699 for (j = 1; j < jmin; j++)
1701 BB.Add( newwire, TopoDS::Edge(SeqEdges(j)) );
1702 PrevSeq.Append( SeqVertices(j) );
1703 PrevEseq.Append( SeqEdges(j) );
1708 for (j = jmin-1; j >= 1; j--)
1710 TopoDS_Shape aLocalShape = SeqEdges(j).Reversed();
1711 BB.Add( newwire, TopoDS::Edge(aLocalShape) );
1712 //PrevSeq.Append( SeqVertices(j) );
1713 PrevEseq.Append( SeqEdges(j).Reversed() );
1715 for (j = theLength; j >= jmin; j--)
1717 TopoDS_Shape aLocalShape = SeqEdges(j).Reversed();
1718 BB.Add( newwire, TopoDS::Edge(aLocalShape) );
1719 //PrevSeq.Append( SeqVertices(j) );
1720 PrevEseq.Append( SeqEdges(j).Reversed() );
1722 for (j = jmin; j >= 1; j--)
1723 PrevSeq.Append( SeqVertices(j) );
1724 for (j = theLength; j > jmin; j--)
1725 PrevSeq.Append( SeqVertices(j) );
1728 newwire.Closed( Standard_True );
1729 newwire.Orientation( TopAbs_FORWARD );
1730 myWork(i) = newwire;
1732 #ifdef OCCT_DEBUG_EFV
1734 for ( i=ideb; i<=myWork.Length(); i++) {
1736 const TopoDS_Wire& wire = TopoDS::Wire(myWork(i));
1738 Standard_Integer nbEdges=0;
1739 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next())
1741 TopExp::Vertices(wire,Vdeb,Vfin);
1742 Standard_Boolean wClosed = wire.Closed();
1744 // on regarde quand meme si les vertex sont les memes.
1745 if ( Vdeb.IsSame(Vfin)) wClosed = Standard_True;
1749 TopoDS_Vertex Vsuiv, VF, VR;
1750 TopoDS_Wire newwire;
1752 BW.MakeWire(newwire);
1755 const TopoDS_Edge Ecur = TopoDS::Edge(anExp.Current());
1756 TopExp::Vertices(Ecur,VF,VR);
1757 if (Vdeb.IsSame(VF)) Vsuiv=VR;
1758 else if (Vdeb.IsSame(VR)) Vsuiv=VF;
1760 // par defaut on prend l'origine sur cette arete
1761 if (VR.IsSame(TopoDS::Vertex(anExp.CurrentVertex()))) {
1770 Pdeb=BRep_Tool::Pnt(Vdeb);
1771 Psuiv=BRep_Tool::Pnt(Vsuiv);
1772 Standard_Real U1 = BRep_Tool::Parameter(Vdeb,Ecur);
1773 Standard_Real U2 = BRep_Tool::Parameter(Vsuiv,Ecur);
1774 BRepAdaptor_Curve Curve(Ecur);
1775 PPs = Curve.Value(0.25*(U1+3*U2));
1776 myWork(ideb) = wire;
1779 // on ramene Pdeb, Psuiv et PPs dans le plan courant
1780 gp_Pnt Pnew,Pnext,PPn;
1781 Transform(Standard_True,Pdeb,Pos->Value(i-1),Axe->Value(i-1),
1782 Pos->Value(i),Axe->Value(i),Pnew);
1783 Transform(Standard_True,Psuiv,Pos->Value(i-1),Axe->Value(i-1),
1784 Pos->Value(i),Axe->Value(i),Pnext);
1785 Transform(Standard_True,PPs,Pos->Value(i-1),Axe->Value(i-1),
1786 Pos->Value(i),Axe->Value(i),PPn);
1788 Standard_Real distmini,dist;
1789 Standard_Integer rang=0,rangdeb=0;
1790 TopoDS_Vertex Vmini;
1792 SeqOfVertices(wire,SeqV);
1793 if (SeqV.Length()>NbMaxV)
1794 Standard_NoSuchObject::Raise("BRepFill::ComputeOrigin failed");
1796 // choix du vertex le plus proche comme origine
1797 distmini = Precision::Infinite();
1798 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
1799 P1 = BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(ii)));
1800 dist = P1.Distance(Pnew);
1801 if (dist<distmini) {
1803 Vmini = TopoDS::Vertex(SeqV.Value(ii));
1806 if (!Vmini.IsNull()) Pmini = BRep_Tool::Pnt(Vmini);
1810 // recherche du vertex correspondant a la projection conique
1811 Standard_Real angmin, angV, eta = Precision::Angular();
1812 TopoDS_Vertex Vopti;
1814 distmini = Precision::Infinite();
1815 gp_Dir dir0(gp_Vec(Pnew,P.Location()));
1816 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
1817 P1 = BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(ii)));
1818 dist = Pnew.Distance(P1);
1819 if (dist<Precision::Confusion()) {
1823 gp_Dir dir1(gp_Vec(Pnew,P1));
1824 angV = dir1.Angle(dir0);
1826 if (angV>M_PI/2) angV = M_PI - angV;
1827 if (angmin>angV+eta) {
1830 Vopti = TopoDS::Vertex(SeqV.Value(ii));
1832 else if (Abs(angmin-angV)<eta) {
1833 if (dist<distmini) {
1836 Vopti = TopoDS::Vertex(SeqV.Value(ii));
1841 if (!Vopti.IsNull()) Popti = BRep_Tool::Pnt(Vopti);
1846 distmini = Precision::Infinite();
1847 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1848 TopoDS_Edge Ecur = anExp.Current();
1849 TopoDS_Vertex Vcur = anExp.CurrentVertex();
1850 TopExp::Vertices(Ecur,VF,VR);
1851 if (VF.IsSame(Vmini)) {
1852 P1 = BRep_Tool::Pnt(VR);
1853 dist = P1.Distance(Pnext);
1854 if (dist<=distmini) {
1859 if (VR.IsSame(Vmini)) {
1860 P1 = BRep_Tool::Pnt(VF);
1861 dist = P1.Distance(Pnext);
1862 if (dist<distmini) {
1869 // choix du sens de parcours en fonction de Pnext
1870 Standard_Boolean parcours = Standard_False;
1871 if (i==myWork.Length() && myDegen2) {
1872 // derniere section ponctuelle
1874 parcours = Standard_True;
1878 gp_Pnt Pbout = Pnext;
1880 TopoDS_Vertex V1,V2;
1881 EdgesFromVertex(wire,Vmini,E1,E2);
1883 TopExp::Vertices(E1,V1,V2,Standard_True);
1885 Standard_Real U1=0, U2=0;
1887 Standard_Real U1, U2;
1889 if (Vmini.IsSame(V1)) {
1890 P1 = BRep_Tool::Pnt(V2);
1891 U1 = 0.25*(BRep_Tool::Parameter(V1,E1)+3*BRep_Tool::Parameter(V2,E1));
1893 if (Vmini.IsSame(V2)) {
1894 P1 = BRep_Tool::Pnt(V1);
1895 U1 = 0.25*(3*BRep_Tool::Parameter(V1,E1)+BRep_Tool::Parameter(V2,E1));
1898 TopExp::Vertices(E2,V1,V2,Standard_True);
1899 if (Vmini.IsSame(V1)) {
1900 P2 = BRep_Tool::Pnt(V2);
1901 U2 = 0.25*(BRep_Tool::Parameter(V1,E2)+3*BRep_Tool::Parameter(V2,E2));
1903 if (Vmini.IsSame(V2)) {
1904 P2 = BRep_Tool::Pnt(V1);
1905 U2 = 0.25*(3*BRep_Tool::Parameter(V1,E2)+BRep_Tool::Parameter(V2,E2));
1908 if (Abs(Pbout.Distance(P1)-Pbout.Distance(P2))<Precision::Confusion()) {
1909 // cas limite ; on se decale un peu
1911 BRepAdaptor_Curve Curve1(E1);
1912 P1 = Curve1.Value(U1);
1913 BRepAdaptor_Curve Curve2(E2);
1914 P2 = Curve2.Value(U2);
1917 // calcul de rangdeb
1919 if (Pbout.Distance(P1)<Pbout.Distance(P2)){
1920 // P1 est plus proche; parcours = False
1921 parcours = Standard_False;
1923 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1925 TopoDS_Edge Ecur = anExp.Current();
1926 if (E1.IsSame(Ecur)) {
1930 BRepAdaptor_Curve Curve(E1);
1931 PPs = Curve.Value(U1);
1934 // P2 est plus proche; parcours = True
1935 parcours = Standard_True;
1937 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1939 TopoDS_Edge Ecur = anExp.Current();
1940 if (E2.IsSame(Ecur)) {
1944 BRepAdaptor_Curve Curve(E2);
1945 PPs = Curve.Value(U2);
1949 // reconstruction du wire a partir de rangdeb
1950 TopTools_SequenceOfShape SeqEdges;
1952 for (anExp.Init(TopoDS::Wire(wire)); anExp.More(); anExp.Next()) {
1953 SeqEdges.Append(anExp.Current());
1956 for (rang=rangdeb;rang<=nbEdges;rang++) {
1957 BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
1959 for (rang=1;rang<rangdeb;rang++) {
1960 BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
1964 for (rang=rangdeb;rang>=1;rang--) {
1965 TopoDS_Shape aLocalShape = SeqEdges.Value(rang).Reversed();
1966 BW.Add(newwire,TopoDS::Edge(aLocalShape));
1967 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
1969 for (rang=nbEdges;rang>rangdeb;rang--) {
1970 TopoDS_Shape aLocalShape = SeqEdges.Value(rang).Reversed();
1971 BW.Add(newwire,TopoDS::Edge(aLocalShape));
1972 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
1976 myWork(i) = newwire.Oriented(TopAbs_FORWARD);
1978 // on passe au wire suivant
1979 if (!Vmini.IsNull()) Pdeb=BRep_Tool::Pnt(Vmini);
1980 if (!Vsuiv.IsNull()) Psuiv=BRep_Tool::Pnt(Vsuiv);
1985 // blocking sections ?
1986 if (vClosed) myWork(myWork.Length()) = myWork(1);
1989 //=======================================================================
1990 //function : SearchOrigin
1992 //=======================================================================
1994 void BRepFill_CompatibleWires::SearchOrigin()
1996 // reorganize the open wires respecting orientation and origin
2000 TopoDS_Vertex Vdeb, Vfin;
2001 gp_Pnt Pdeb, Pfin;//,Psuiv;
2003 BRepTools_WireExplorer anExp;
2005 Standard_Boolean allOpen = Standard_True;
2006 Standard_Integer ideb=1, ifin=myWork.Length();
2007 if (myDegen1) ideb++;
2008 if (myDegen2) ifin--;
2009 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
2010 && (myWork(ideb).IsSame(myWork(ifin)));
2012 // for (Standard_Integer i=ideb; i<=ifin; i++) {
2014 for (i=ideb; i<=ifin; i++) {
2015 allOpen = (allOpen && !myWork(i).Closed());
2018 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SearchOrigin : the wires must be open");
2022 TopoDS_Wire wire1 = TopoDS::Wire(myWork(ideb));
2023 wire1.Orientation(TopAbs_FORWARD);
2024 TopExp::Vertices(wire1,Vdeb,Vfin);
2025 Pdeb = BRep_Tool::Pnt(Vdeb);
2026 Pfin = BRep_Tool::Pnt(Vfin);
2027 Standard_Boolean isline0 = (!PlaneOfWire(wire1,P0)), isline;
2028 myWork(ideb) = wire1;
2031 TopoDS_Edge E0 = anExp.Current(), E;
2033 for ( i=ideb+1; i<=ifin; i++) {
2035 TopoDS_Wire wire = TopoDS::Wire(myWork(i));
2036 wire.Orientation(TopAbs_FORWARD);
2038 TopTools_SequenceOfShape SeqEdges;
2040 Standard_Integer nbEdges=0;
2041 //OCC86 for(anExp.Init(wire); anExp.More(); anExp.Next()) {
2042 for(anExp.Init(wire), E = anExp.Current(); anExp.More(); anExp.Next()) {
2043 SeqEdges.Append(anExp.Current());
2046 TopExp::Vertices(wire,Vdeb,Vfin);
2047 isline = (!PlaneOfWire(wire,P));
2049 TopoDS_Vertex Vmini;
2050 TopoDS_Wire newwire;
2052 BW.MakeWire(newwire);
2053 Standard_Boolean parcours = Standard_True;
2055 if (isline0 || isline) {
2057 // particular case of straight segments
2058 gp_Pnt P1 = BRep_Tool::Pnt(Vdeb),
2059 P2 = BRep_Tool::Pnt(Vfin);
2060 Standard_Real dist1, dist2;
2061 dist1 = Pdeb.Distance(P1)+Pfin.Distance(P2);
2062 dist2 = Pdeb.Distance(P2)+Pfin.Distance(P1);
2063 parcours = (dist2>=dist1);
2068 gp_Pnt P1 = BRep_Tool::Pnt(Vdeb), P1o = Pdeb,
2069 P2 = BRep_Tool::Pnt(Vfin), P2o = Pfin;
2070 /* // return Pdeb in the current plane
2071 gp_Pnt Pnew = Pdeb.Translated (P0.Location(),P.Location());
2072 gp_Ax1 A0 = P0.Axis();
2073 gp_Ax1 A1 = P.Axis();
2075 if (!A0.IsParallel(A1,1.e-4)) {
2076 gp_Vec vec1(A0.Direction()), vec2(A1.Direction()),
2078 gp_Ax1 Norm(P.Location(),norm);
2079 Standard_Real ang = vec1.AngleWithRef(vec2,norm);
2082 if (ang < -M_PI/2.0)
2084 if (Abs(ang-M_PI/2.0)<Precision::Angular()) {
2086 gp_Vec Vtrans(P0.Location(),P.Location()),Vsign;
2087 Standard_Real alpha,beta,sign=1;
2088 Vsign.SetLinearForm(Vtrans.Dot(vec1),vec2,-Vtrans.Dot(vec2),vec1);
2089 alpha = Vsign.Dot(vec1);
2090 beta = Vsign.Dot(vec2);
2091 Standard_Boolean pasnul = (Abs(alpha)>1.e-4 && Abs(beta)>1.e-4);
2092 if ( alpha*beta>0.0 && pasnul ) sign=-1;
2095 Pnew = Pnew.Rotated (Norm,ang);
2097 // choix entre Vdeb et Vfin
2098 Standard_Real dist = Pnew.Distance(P1);
2099 parcours = (dist<Pnew.Distance(P2));
2101 if(P1.IsEqual(P2,Precision::Confusion()) || P1o.IsEqual(P2o,Precision::Confusion())){
2102 BRepAdaptor_Curve Curve0(E0), Curve(E);
2103 Curve0.D0(Curve0.FirstParameter() + Precision::Confusion(), P2o);
2104 Curve.D0(Curve.FirstParameter() + Precision::Confusion(), P2);
2106 gp_Vec VDebFin0(P1o,P2o), VDebFin(P1,P2);
2107 Standard_Real AStraight = VDebFin0.Angle(VDebFin);
2108 parcours = (AStraight < M_PI/2.0? Standard_True: Standard_False);
2111 // reconstruction of the wire
2112 Standard_Integer rang;
2114 for (rang=1;rang<=nbEdges;rang++) {
2115 TopoDS_Shape alocalshape = SeqEdges.Value(rang);
2116 BW.Add(newwire,TopoDS::Edge(alocalshape));
2117 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
2121 for (rang=nbEdges;rang>=1;rang--) {
2122 TopoDS_Shape alocalshape = SeqEdges.Value(rang).Reversed();
2123 BW.Add(newwire,TopoDS::Edge(alocalshape));
2124 // BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
2128 // orientation of the wire
2129 newwire.Oriented(TopAbs_FORWARD);
2130 myWork(i) = newwire;
2132 // passe to the next wire
2134 Pdeb = BRep_Tool::Pnt(Vdeb);
2135 Pfin = BRep_Tool::Pnt(Vfin);
2138 Pfin = BRep_Tool::Pnt(Vdeb);
2139 Pdeb = BRep_Tool::Pnt(Vfin);
2147 // blocking sections ?
2148 if (vClosed) myWork(myWork.Length()) = myWork(1);