1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and/or modify it under
6 // the terms of the GNU Lesser General Public License version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
14 // pdn 10.12.98: tr9_r0501-ug
15 // pdn 28.12.98: PRO10366 shifting pcurve between two singularities
16 //:k7 abv 5.01.99: USA60022.igs ent 243: FixMissingSeam() improved
17 //:l2 abv 10.01.99: USA60022 7289: corrections for reversed face
18 //gka 11.01.99 file PRO7755.stp #2018: work-around error in BRepLib_MakeFace
19 //:p4 abv, pdn 23.02.99: PRO9234 #15720: call BRepTools::Update() for faces
20 // rln 03.03.99 S4135: transmission of parameter precision to SA_Surface::NbSingularities
21 //:q5 abv 19.03.99 code improvement
22 //%14 pdn 15.03.99 adding function for fixing null area wires
23 //%15 pdn 20.03.99 code improvement
24 // abv 09.04.99 S4136: improve tolerance management; remove unused flag Closed
25 //#4 szv S4163: optimization
26 // smh 31.01.01 BUC60810 : Case of small wire on face in solid
27 // sln 25.09.2001 checking order of 3d and 2d representation curves
28 // abv 19.10.2001 FixAddNaturalBound improved and extracted as separate fix
29 // skl,pdn 14.05.2002 OCC55 (correction precision for small faces)
31 #include <ShapeFix_Face.ixx>
33 #include <Standard_Failure.hxx>
34 #include <Standard_ErrorHandler.hxx>
36 #include <Precision.hxx>
38 #include <Geom2d_Curve.hxx>
39 #include <Geom2d_Line.hxx>
40 #include <Geom2dAdaptor_Curve.hxx>
41 #include <Geom_Curve.hxx>
42 #include <Geom_BSplineSurface.hxx>
43 #include <GeomAdaptor_HSurface.hxx>
46 #include <TopoDS_Edge.hxx>
47 #include <TopoDS_Vertex.hxx>
48 #include <TopoDS_Shell.hxx>
49 #include <TopoDS_Compound.hxx>
50 #include <TopoDS_Iterator.hxx>
51 #include <TopExp_Explorer.hxx>
52 #include <TopTools_SequenceOfShape.hxx>
54 #include <BRep_Tool.hxx>
55 #include <BRep_Builder.hxx>
56 #include <BRepTopAdaptor_FClass2d.hxx>
57 #include <BRepTools.hxx>
58 #include <BRepBuilderAPI_MakeFace.hxx>
59 #include <BRepBuilderAPI_MakeVertex.hxx>
60 #include <BRepBuilderAPI_MakeWire.hxx>
62 #include <Message_Msg.hxx>
63 #include <ShapeBuild_ReShape.hxx>
64 #include <ShapeExtend_WireData.hxx>
65 #include <ShapeAnalysis.hxx>
66 #include <ShapeFix_Wire.hxx>
67 #include <ShapeFix_Edge.hxx>
68 #include <ShapeAnalysis_Edge.hxx>
69 #include <Bnd_Box2d.hxx>
70 #include <Geom_Circle.hxx>
71 #include <Geom_SphericalSurface.hxx>
72 #include <Geom_RectangularTrimmedSurface.hxx>
73 #include <Geom_ConicalSurface.hxx>
74 #include <ShapeAnalysis_Wire.hxx>
75 #include <ShapeAnalysis_Surface.hxx>
77 #include <ShapeExtend_CompositeSurface.hxx>
78 #include <ShapeFix_ComposeShell.hxx>
79 #include <TColGeom_HArray2OfSurface.hxx>
80 #include <ShapeBuild_Edge.hxx>
81 #include <TColgp_SequenceOfPnt2d.hxx>
82 #include <Bnd_Box.hxx>
83 #include <TopTools_IndexedMapOfShape.hxx>
84 #include <TopTools_DataMapOfShapeListOfShape.hxx>
85 #include <TopTools_ListIteratorOfListOfShape.hxx>
86 #include <TopTools_MapOfShape.hxx>
90 #include <ShapeFix.hxx>
91 #include <ShapeFix_DataMapOfShapeBox2d.hxx>
92 #include <BndLib_Add2dCurve.hxx>
93 #include <Geom2dAdaptor_Curve.hxx>
94 #include <IntRes2d_Domain.hxx>
95 #include <Geom2dInt_GInter.hxx>
96 #include <IntRes2d_IntersectionPoint.hxx>
97 #include <IntRes2d_Transition.hxx>
98 #include <TopTools_SequenceOfShape.hxx>
99 #include <IntRes2d_IntersectionSegment.hxx>
100 #include <TopTools_DataMapOfShapeInteger.hxx>
102 #include <ShapeFix_IntersectionTool.hxx>
103 #include <ShapeFix_SplitTool.hxx>
104 #include <TColStd_MapOfInteger.hxx>
105 #include <TopTools_DataMapOfShapeShape.hxx>
106 #include <NCollection_Array1.hxx>
112 static Standard_Boolean IsSurfaceUVInfinite(const Handle(Geom_Surface)& theSurf)
114 Standard_Real UMin,UMax,VMin,VMax;
115 theSurf->Bounds(UMin,UMax,VMin,VMax);
117 return (Precision::IsInfinite(UMin) ||
118 Precision::IsInfinite(UMax) ||
119 Precision::IsInfinite(VMin) ||
120 Precision::IsInfinite(VMax) );
123 static Standard_Boolean IsSurfaceUVPeriodic(const Handle(Geom_Surface)& theSurf)
125 return theSurf->IsUPeriodic() && theSurf->IsVPeriodic();
128 //=======================================================================
129 //function : ShapeFix_Face
131 //=======================================================================
133 ShapeFix_Face::ShapeFix_Face()
135 myFwd = Standard_True;
137 myFixWire = new ShapeFix_Wire;
141 //=======================================================================
142 //function : ShapeFix_Face
144 //=======================================================================
146 ShapeFix_Face::ShapeFix_Face(const TopoDS_Face &face)
148 myFwd = Standard_True;
150 myFixWire = new ShapeFix_Wire;
155 //=======================================================================
156 //function : ClearModes
158 //=======================================================================
160 void ShapeFix_Face::ClearModes()
163 myFixOrientationMode = -1;
164 myFixAddNaturalBoundMode = -1;
165 myFixMissingSeamMode = -1;
166 myFixSmallAreaWireMode = -1;
167 myFixIntersectingWiresMode = -1;
168 myFixLoopWiresMode = -1;
169 myFixSplitFaceMode = -1;
170 myAutoCorrectPrecisionMode = 1;
171 myFixPeriodicDegenerated = -1;
174 //=======================================================================
175 //function : SetMsgRegistrator
177 //=======================================================================
179 void ShapeFix_Face::SetMsgRegistrator(const Handle(ShapeExtend_BasicMsgRegistrator)& msgreg)
181 ShapeFix_Root::SetMsgRegistrator ( msgreg );
182 myFixWire->SetMsgRegistrator ( msgreg );
185 //=======================================================================
186 //function : SetPrecision
188 //=======================================================================
190 void ShapeFix_Face::SetPrecision (const Standard_Real preci)
192 ShapeFix_Root::SetPrecision ( preci );
193 myFixWire->SetPrecision ( preci );
196 //=======================================================================
197 //function : SetMinTolerance
199 //=======================================================================
201 void ShapeFix_Face::SetMinTolerance (const Standard_Real mintol)
203 ShapeFix_Root::SetMinTolerance ( mintol );
204 myFixWire->SetMinTolerance ( mintol );
207 //=======================================================================
208 //function : SetMaxTolerance
210 //=======================================================================
212 void ShapeFix_Face::SetMaxTolerance (const Standard_Real maxtol)
214 ShapeFix_Root::SetMaxTolerance ( maxtol );
215 myFixWire->SetMaxTolerance ( maxtol );
218 //=======================================================================
221 //=======================================================================
223 void ShapeFix_Face::Init (const Handle(Geom_Surface)& surf,
224 const Standard_Real preci, const Standard_Boolean fwd)
227 Handle(ShapeAnalysis_Surface) sas = new ShapeAnalysis_Surface ( surf );
228 Init ( sas, preci, fwd );
231 //=======================================================================
234 //=======================================================================
236 void ShapeFix_Face::Init (const Handle(ShapeAnalysis_Surface)& surf,
237 const Standard_Real preci, const Standard_Boolean fwd)
241 SetPrecision ( preci );
243 B.MakeFace ( myFace, mySurf->Surface(), ::Precision::Confusion() );
246 if ( !fwd ) myFace.Orientation(TopAbs_REVERSED);
249 //=======================================================================
252 //=======================================================================
254 void ShapeFix_Face::Init (const TopoDS_Face& face)
257 mySurf = new ShapeAnalysis_Surface ( BRep_Tool::Surface (face) );
258 myFwd = ( face.Orientation() != TopAbs_REVERSED );
261 // myFace = TopoDS::Face(face.EmptyCopied());
262 // for (TopoDS_Iterator ws (face,Standard_False); ws.More(); ws.Next())
263 // Add (TopoDS::Wire (ws.Value()) );
266 //=======================================================================
269 //=======================================================================
271 void ShapeFix_Face::Add (const TopoDS_Wire& wire)
273 if ( wire.IsNull() ) return;
275 //szv#4:S4163:12Mar99 SGI warns
276 TopoDS_Shape fc = myFace.Oriented(TopAbs_FORWARD); //:l2 abv 10 Jan 99: Oriented()
281 //=======================================================================
282 //function : SplitWire
283 //purpose : auxilary - try to split wire (it is needed if some segments
284 // were removed in ShapeFix_Wire::FixSelfIntersection()
285 //=======================================================================
286 static Standard_Boolean SplitWire(const TopoDS_Face &face, const TopoDS_Wire& wire,
287 TopTools_SequenceOfShape& aResWires)
289 TColStd_MapOfInteger UsedEdges;
290 Handle(ShapeExtend_WireData) sewd = new ShapeExtend_WireData(wire);
291 Standard_Integer i,j,k;
292 ShapeAnalysis_Edge sae;
293 for(i=1; i<=sewd->NbEdges(); i++) {
294 if(UsedEdges.Contains(i)) continue;
295 TopoDS_Edge E1 = sewd->Edge(i);
297 TopoDS_Vertex V0,V1,V2;
298 V0 = sae.FirstVertex(E1);
299 V1 = sae.LastVertex(E1);
300 Handle(ShapeExtend_WireData) sewd1 = new ShapeExtend_WireData;
302 Standard_Boolean IsConnectedEdge = Standard_True;
303 for(j=2; j<=sewd->NbEdges() && IsConnectedEdge; j++) {
305 for(k=2; k<=sewd->NbEdges(); k++) {
306 if(UsedEdges.Contains(k)) continue;
308 TopoDS_Vertex V21 = sae.FirstVertex(E2);
309 TopoDS_Vertex V22 = sae.LastVertex(E2);
310 if( sae.FirstVertex(E2).IsSame(V1) ) {
313 V1 = sae.LastVertex(E2);
317 if(k>sewd->NbEdges()) {
318 IsConnectedEdge = Standard_False;
322 //check that V0 and V1 are same in 2d too
323 Standard_Real a1,b1,a2,b2;
324 Handle (Geom2d_Curve) curve1 = BRep_Tool::CurveOnSurface(E1,face,a1,b1);
325 Handle (Geom2d_Curve) curve2 = BRep_Tool::CurveOnSurface(E2,face,a2,b2);
327 if (E1.Orientation() == TopAbs_REVERSED)
329 if (E2.Orientation() == TopAbs_REVERSED)
333 GeomAdaptor_Surface anAdaptor(BRep_Tool::Surface(face));
334 Standard_Real tol = Max(BRep_Tool::Tolerance(V0),BRep_Tool::Tolerance(V1));
335 Standard_Real maxResolution = 2 * Max ( anAdaptor.UResolution(tol), anAdaptor.VResolution(tol) );
336 if (v0.SquareDistance(v1) < maxResolution) {
337 // new wire is closed, put it into sequence
338 aResWires.Append(sewd1->Wire());
343 if(!IsConnectedEdge) {
344 // create new notclosed wire
345 aResWires.Append(sewd1->Wire());
347 if(UsedEdges.Extent()==sewd->NbEdges()) break;
350 if(aResWires.Length()>1) {
352 cout<<"Wire was splitted on "<<aResWires.Length()<<" wires"<< endl;
356 return Standard_True;
360 //=======================================================================
363 //=======================================================================
365 Standard_Boolean ShapeFix_Face::Perform()
367 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
368 myFixWire->SetContext ( Context() );
369 Handle(ShapeFix_Wire) theAdvFixWire = Handle(ShapeFix_Wire)::DownCast(myFixWire);
370 if (theAdvFixWire.IsNull()) return Standard_False;
373 TopoDS_Shape aInitFace = myFace;
374 // perform first part of fixes on wires
375 Standard_Boolean isfixReorder = Standard_False;
376 Standard_Boolean isReplaced = Standard_False;
378 //gka fix in order to avoid lost messages (following OCC21771)
379 TopTools_DataMapOfShapeShape aMapReorderedWires;
381 Standard_Real aSavPreci = Precision();
382 if ( NeedFix ( myFixWireMode ) ) {
383 theAdvFixWire->SetFace ( myFace );
385 Standard_Integer usFixLackingMode = theAdvFixWire->FixLackingMode();
386 Standard_Integer usFixNotchedEdgesMode = theAdvFixWire->FixNotchedEdgesMode();
387 Standard_Integer usFixSelfIntersectionMode = theAdvFixWire->FixSelfIntersectionMode();
388 theAdvFixWire->FixLackingMode() = Standard_False;
389 theAdvFixWire->FixNotchedEdgesMode() = Standard_False;
390 theAdvFixWire->FixSelfIntersectionMode() = Standard_False;
392 Standard_Boolean fixed = Standard_False;
393 TopoDS_Shape S = myFace;
394 if ( ! Context().IsNull() )
395 S = Context()->Apply ( myFace );
396 TopoDS_Shape emptyCopied = S.EmptyCopied();
397 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
398 tmpFace.Orientation ( TopAbs_FORWARD );
401 // skl 14.05.2002 OCC55 + corrected 03.03.2004
402 Standard_Real dPreci = aSavPreci*aSavPreci;
404 Standard_Real newpreci=dPreci;
405 for(TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next()) {
406 TopoDS_Edge edge = TopoDS::Edge ( exp.Current() );
407 Standard_Real first,last;
408 Handle(Geom_Curve) c3d = BRep_Tool::Curve(edge, first, last);
411 bb.Add(c3d->Value(first));
412 bb.Add(c3d->Value(last));
413 bb.Add(c3d->Value((last+first)/2.));
414 Standard_Real x1,x2,y1,y2,z1,z2,size;
415 bb.Get(x1,y1,z1,x2,y2,z2);
416 size = (x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) + (z2-z1)*(z2-z1);
417 if(size<newpreci) newpreci=size;
420 newpreci=sqrt(newpreci)/2.*1.00001;
421 if( aSavPreci > newpreci && newpreci > Precision::Confusion()) {
422 SetPrecision(newpreci);
423 theAdvFixWire->SetPrecision(newpreci);
425 // end skl 14.05.2002
428 // skl 29.03.2010 (OCC21623)
429 if( myAutoCorrectPrecisionMode ) {
430 Standard_Real size = ShapeFix::LeastEdgeSize(S);
431 Standard_Real newpreci = Min(aSavPreci,size/2.);
432 newpreci = newpreci*1.00001;
433 if( aSavPreci > newpreci && newpreci > Precision::Confusion()) {
434 SetPrecision(newpreci);
435 theAdvFixWire->SetPrecision(newpreci);
439 isfixReorder = Standard_False;
440 for ( TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
441 if(iter.Value().ShapeType() != TopAbs_WIRE) {
442 B.Add ( tmpFace, iter.Value() );
445 TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
446 theAdvFixWire->Load ( wire );
447 if(theAdvFixWire->NbEdges() == 0) {
448 if(theAdvFixWire->WireData()->NbNonManifoldEdges())
449 B.Add ( tmpFace, wire );
451 fixed = Standard_True;
452 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
456 if ( theAdvFixWire->Perform() ) {
457 //fixed = Standard_True;
458 isfixReorder = (theAdvFixWire->StatusReorder(ShapeExtend_DONE) || isfixReorder);
459 fixed = (theAdvFixWire->StatusSmall(ShapeExtend_DONE) ||
460 theAdvFixWire->StatusConnected(ShapeExtend_DONE) ||
461 theAdvFixWire->StatusEdgeCurves(ShapeExtend_DONE) ||
462 theAdvFixWire->StatusDegenerated(ShapeExtend_DONE) ||
463 theAdvFixWire->StatusClosed(ShapeExtend_DONE));
464 TopoDS_Wire w = theAdvFixWire->Wire();
466 if ( ! Context().IsNull() ) Context()->Replace ( wire, w );
467 if(theAdvFixWire->NbEdges() == 0) {
468 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
472 else if(!wire.IsSame(w))
473 aMapReorderedWires.Bind(wire,w);
477 B.Add ( tmpFace, wire );
478 // if ( theAdvFixWire->Status ( ShapeExtend_FAIL ) )
479 // myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
482 theAdvFixWire->FixLackingMode() = usFixLackingMode;
483 theAdvFixWire->FixNotchedEdgesMode() = usFixNotchedEdgesMode;
484 theAdvFixWire->FixSelfIntersectionMode() = usFixSelfIntersectionMode;
485 if ( ! myFwd ) tmpFace.Orientation ( TopAbs_REVERSED );
488 //if ( ! myFwd ) tmpFace.Orientation ( TopAbs_REVERSED );
489 if ( ! Context().IsNull() ) Context()->Replace ( S, tmpFace );
491 isReplaced = Standard_True;
493 if(fixed || isfixReorder) {
495 if (!theAdvFixWire->StatusReorder(ShapeExtend_DONE5)) {
496 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
502 TopoDS_Shape savShape = myFace; //gka BUG 6555
504 // Specific case for conic surfaces
505 if ( NeedFix(myFixPeriodicDegenerated) )
506 this->FixPeriodicDegenerated();
509 if ( NeedFix ( myFixMissingSeamMode ) ) {
510 if ( FixMissingSeam() ) {
511 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
515 // cycle by all possible faces coming from FixMissingSeam
516 // each face is processed as if it was single
517 TopExp_Explorer exp(myResult,TopAbs_FACE);
518 for ( ; exp.More(); exp.Next() ) {
519 myFace = TopoDS::Face ( exp.Current() );
520 Standard_Boolean NeedCheckSplitWire = Standard_False;
522 // perform second part of fixes on wires
523 if ( NeedFix ( myFixWireMode ) ) {
524 theAdvFixWire->SetFace ( myFace );
526 Standard_Integer usFixSmallMode = theAdvFixWire->FixSmallMode();
527 Standard_Integer usFixConnectedMode = theAdvFixWire->FixConnectedMode();
528 Standard_Integer usFixEdgeCurvesMode =theAdvFixWire->FixEdgeCurvesMode();
529 Standard_Integer usFixDegeneratedMode = theAdvFixWire->FixDegeneratedMode();
530 theAdvFixWire->FixSmallMode() = Standard_False;
531 theAdvFixWire->FixConnectedMode() = Standard_False;
532 theAdvFixWire->FixEdgeCurvesMode() = Standard_False;
533 theAdvFixWire->FixDegeneratedMode() = Standard_False;
535 Standard_Boolean fixed = Standard_False;
536 TopoDS_Shape S = myFace;
537 if ( ! Context().IsNull() )
538 S = Context()->Apply ( myFace );
539 TopoDS_Shape emptyCopied = S.EmptyCopied();
540 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
541 tmpFace.Orientation ( TopAbs_FORWARD );
542 for ( TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
543 if(iter.Value().ShapeType() != TopAbs_WIRE) {
544 B.Add ( tmpFace,iter.Value());
548 TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
549 theAdvFixWire->Load ( wire );
550 if(theAdvFixWire->NbEdges() == 0) {
551 if(theAdvFixWire->WireData()->NbNonManifoldEdges())
552 B.Add ( tmpFace, wire );
554 fixed = Standard_True;
555 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
559 if ( theAdvFixWire->Perform() ) {
560 isfixReorder = theAdvFixWire->StatusReorder(ShapeExtend_DONE);
561 fixed = (theAdvFixWire->StatusLacking(ShapeExtend_DONE) ||
562 theAdvFixWire->StatusSelfIntersection(ShapeExtend_DONE) ||
563 theAdvFixWire->StatusNotches(ShapeExtend_DONE)); //Standard_True;
564 TopoDS_Wire w = theAdvFixWire->Wire();
566 if ( ! Context().IsNull() ) Context()->Replace ( wire, w );
569 else if(!wire.IsSame(w))
570 aMapReorderedWires.Bind(wire,w);
574 if(theAdvFixWire->StatusRemovedSegment())
575 NeedCheckSplitWire = Standard_True;
577 //fix for loop of wire
578 TopTools_SequenceOfShape aLoopWires;
579 if(NeedFix ( myFixLoopWiresMode) && FixLoopWire(aLoopWires)) {
580 if (aLoopWires.Length() > 1)
581 SendWarning ( wire, Message_Msg ( "FixAdvFace.FixLoopWire.MSG0" ) );// Wire was splitted on several wires
582 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
583 fixed = Standard_True;
584 Standard_Integer k=1;
585 for( ; k <= aLoopWires.Length(); k++)
586 B.Add (tmpFace,aLoopWires.Value(k));
589 B.Add ( tmpFace, wire );
592 theAdvFixWire->FixSmallMode() = usFixSmallMode;
593 theAdvFixWire->FixConnectedMode() = usFixConnectedMode;
594 theAdvFixWire->FixEdgeCurvesMode() = usFixEdgeCurvesMode;
595 theAdvFixWire->FixDegeneratedMode() = usFixDegeneratedMode;
598 if ( ! myFwd ) tmpFace.Orientation ( TopAbs_REVERSED );
599 if(!isReplaced && !aInitFace.IsSame(myResult) && ! Context().IsNull()) //gka 06.09.04 BUG 6555
600 Context()->Replace(aInitFace,savShape);
601 if ( ! Context().IsNull() ) Context()->Replace ( S, tmpFace );
603 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
607 if(NeedCheckSplitWire) {
608 // try to split wire - it is needed if some segments were removed
609 // in ShapeFix_Wire::FixSelfIntersection()
610 TopoDS_Shape S = myFace;
611 if ( ! Context().IsNull() )
612 S = Context()->Apply ( myFace );
613 TopoDS_Shape emptyCopied = S.EmptyCopied();
614 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
615 tmpFace.Orientation ( TopAbs_FORWARD );
616 TopTools_SequenceOfShape aWires;
617 Standard_Integer nbw=0;
618 for ( TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
619 if(iter.Value().ShapeType() != TopAbs_WIRE) {
620 B.Add (tmpFace,iter.Value());
623 if(iter.Value().Orientation() != TopAbs_FORWARD &&
624 iter.Value().Orientation() != TopAbs_REVERSED) {
625 B.Add (tmpFace,TopoDS::Wire(iter.Value()));
629 TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
630 SplitWire(tmpFace,wire,aWires);
632 if(nbw<aWires.Length()) {
633 for(Standard_Integer iw=1; iw<=aWires.Length(); iw++)
634 B.Add (tmpFace,aWires.Value(iw));
635 if ( ! Context().IsNull() ) Context()->Replace ( S, tmpFace );
636 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
641 // fix intersecting wires
642 if(FixWiresTwoCoincEdges())
643 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
644 if ( NeedFix ( myFixIntersectingWiresMode ) ) {
645 if ( FixIntersectingWires() ) {
646 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
651 TopTools_DataMapOfShapeListOfShape MapWires;
653 if ( NeedFix ( myFixOrientationMode ) ) {
654 if ( FixOrientation(MapWires) )
655 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
658 BRepTools::Update(myFace);
660 // fix natural bounds
661 Standard_Boolean NeedSplit = Standard_True;
662 if ( NeedFix ( myFixAddNaturalBoundMode ) ) {
663 if ( FixAddNaturalBound() ) {
664 NeedSplit = Standard_False;
665 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
670 if ( NeedFix ( myFixSplitFaceMode ) && NeedSplit && MapWires.Extent()>1 ) {
671 if ( FixSplitFace(MapWires) )
672 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
677 //return the original preci
678 SetPrecision(aSavPreci);
679 theAdvFixWire->SetPrecision(aSavPreci);
681 // cycle by all possible faces coming from FixAddNaturalBound
682 // each face is processed as if it was single
683 for ( exp.Init(myResult,TopAbs_FACE); exp.More(); exp.Next() ) {
684 myFace = TopoDS::Face ( exp.Current() );
686 // fix small-area wires
687 if ( NeedFix ( myFixSmallAreaWireMode, Standard_False ) ) {
688 if ( FixSmallAreaWire() )
689 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
694 if ( ! Context().IsNull() ) {
695 if(Status ( ShapeExtend_DONE ) && !isReplaced && !aInitFace.IsSame(savShape))
697 //gka fix in order to avoid lost messages (following OCC21771)
698 if(aMapReorderedWires.Extent())
700 TopoDS_Iterator aItW(aInitFace,Standard_False);
701 for( ; aItW.More() ; aItW.Next())
703 TopoDS_Shape aCurW = aItW.Value();
704 while(aMapReorderedWires.IsBound(aCurW))
706 TopoDS_Shape aFixW = aMapReorderedWires.Find(aCurW);
707 Context()->Replace(aCurW, aFixW);
713 Context()->Replace(aInitFace, savShape);
715 myResult = Context()->Apply ( aInitFace ); //gka 06.09.04
717 else if(!Status ( ShapeExtend_DONE ))
718 myResult = aInitFace;
720 return Status ( ShapeExtend_DONE );
723 //=======================================================================
724 //function : Auxiliary functions
726 //=======================================================================
728 // Shift all pcurves of edges in the given wire on the given face
730 static void Shift2dWire(const TopoDS_Wire w, const TopoDS_Face f,
732 const Handle(ShapeAnalysis_Surface)& mySurf,
733 Standard_Boolean recompute3d = Standard_False)
736 tr2d.SetTranslation(vec.XY());
737 ShapeAnalysis_Edge sae;
740 for (TopoDS_Iterator ei (w,Standard_False); ei.More(); ei.Next()){
741 TopoDS_Edge edge = TopoDS::Edge(ei.Value());
742 Handle (Geom2d_Curve) C2d;
743 Standard_Real cf, cl;
744 if ( ! sae.PCurve(edge, f, C2d, cf, cl, Standard_True) ) continue;
745 C2d->Transform(tr2d);
747 // recompute 3d curve and vertex
748 sbe.RemoveCurve3d ( edge );
749 sbe.BuildCurve3d ( edge );
750 B.UpdateVertex ( sae.FirstVertex(edge), mySurf->Value(C2d->Value(cf)), 0. );
755 // Cut interval from the sequence of intervals
756 static Standard_Boolean CutInterval (TColgp_SequenceOfPnt2d &intervals,
757 const gp_Pnt2d &toAddI,
758 const Standard_Real period)
760 if ( intervals.Length() <=0 ) return Standard_False;
761 for ( Standard_Integer j=0; j <2; j++ ) { // try twice, align to bottom and to top
762 for ( Standard_Integer i=1; i <= intervals.Length(); i++ ) {
763 gp_Pnt2d interval = intervals(i);
764 // ACIS907, OCC921 a054a.sat (face 124)
765 Standard_Real shift = ShapeAnalysis::AdjustByPeriod ( ( j ? toAddI.X() : toAddI.Y() ),
766 0.5*( interval.X() + interval.Y() ),period);
767 gp_Pnt2d toAdd ( toAddI.X() + shift, toAddI.Y() + shift );
768 if ( toAdd.Y() <= interval.X() || toAdd.X() >= interval.Y() ) continue;
769 if ( toAdd.X() > interval.X() ) {
770 if ( toAdd.Y() < interval.Y() ) {
771 intervals.InsertBefore ( i, interval );
772 intervals.ChangeValue(i+1).SetX ( toAdd.Y() ); // i++...
774 intervals.ChangeValue(i).SetY ( toAdd.X() );
776 else if ( toAdd.Y() < interval.Y() ) {
777 intervals.ChangeValue(i).SetX ( toAdd.Y() );
779 else intervals.Remove ( i-- );
782 return Standard_True;
785 // Find middle of the biggest interval
786 static Standard_Real FindBestInterval (TColgp_SequenceOfPnt2d &intervals)
788 Standard_Real shift = 0., max = -1.;
789 for ( Standard_Integer i=1; i <= intervals.Length(); i++ ) {
790 gp_Pnt2d interval = intervals(i);
791 if ( interval.Y() - interval.X() <= max ) continue;
792 max = interval.Y() - interval.X();
793 shift = interval.X() + 0.5 * max;
798 //=======================================================================
799 //function : FixAddNaturalBound
801 //=======================================================================
802 // Detect missing natural bounary on spherical surfaces and add it if
804 //pdn 981202: add natural bounds if missing (on sphere only)
805 //:abv 28.08.01: rewritten and extended for toruses
807 Standard_Boolean ShapeFix_Face::FixAddNaturalBound()
809 if ( ! Context().IsNull() ) {
810 TopoDS_Shape S = Context()->Apply ( myFace );
811 myFace = TopoDS::Face ( S );
814 // collect wires in sequence
815 TopTools_SequenceOfShape ws;
816 TopTools_SequenceOfShape vs;
817 TopoDS_Iterator wi (myFace,Standard_False);
818 for ( ; wi.More(); wi.Next()) {
819 if(wi.Value().ShapeType() == TopAbs_WIRE &&
820 (wi.Value().Orientation() == TopAbs_FORWARD || wi.Value().Orientation() == TopAbs_REVERSED))
821 ws.Append (wi.Value());
823 vs.Append(wi.Value());
826 // deal with the case of an empty face: just create a new face by a standard tool
827 if (ws.IsEmpty() && !IsSurfaceUVInfinite (mySurf->Surface()))
829 BRepBuilderAPI_MakeFace aFaceBuilder (mySurf->Surface(), Precision::Confusion());
831 TopoDS_Face aNewFace = aFaceBuilder.Face();
832 aNewFace.Orientation (myFace.Orientation());
834 if ( ! Context().IsNull() )
835 Context()->Replace (myFace, aNewFace);
837 // taking into account orientation
840 //gka 11.01.99 file PRO7755.stp entity #2018 surface #1895: error BRepLib_MakeFace func IsDegenerated
841 Handle(ShapeFix_Edge) sfe = myFixWire->FixEdgeTool();
842 for (TopExp_Explorer Eed (myFace, TopAbs_EDGE); Eed.More(); Eed.Next()) {
843 TopoDS_Edge edg = TopoDS::Edge (Eed.Current());
844 sfe->FixVertexTolerance(edg);
847 // B.UpdateFace (myFace,myPrecision);
848 SendWarning ( myFace, Message_Msg ( "FixAdvFace.FixOrientation.MSG0" ) );// Face created with natural bounds
849 BRepTools::Update(myFace);
851 return Standard_True;
854 // check if surface is double-closed and fix is needed
855 if ( !IsSurfaceUVPeriodic (mySurf->Surface()) || ShapeAnalysis::IsOuterBound (myFace) )
856 return Standard_False;
858 // Collect informations on free intervals in U and V
859 TColgp_SequenceOfPnt2d intU, intV, centers;
860 Standard_Real SUF, SUL, SVF, SVL;
861 mySurf->Bounds(SUF, SUL, SVF, SVL);
862 intU.Append ( gp_Pnt2d(SUF, SUL) );
863 intV.Append ( gp_Pnt2d(SVF, SVL) );
864 Standard_Integer nb = ws.Length();
866 for ( i=1; i <= nb; i ++) {
867 Standard_Real Umin, Vmin, Umax, Vmax;
869 TopoDS_Wire aw = TopoDS::Wire (ws.Value(i));
870 // PTV 01.11.2002 ACIS907, OCC921 begin
871 // BRepTools::AddUVBounds(myFace,aw,B);
872 // B.Get(Umin, Vmin, Umax, Vmax);
873 TopoDS_Face aWireFace = TopoDS::Face( myFace.EmptyCopied() );
875 aB.Add( aWireFace, aw );
876 ShapeAnalysis::GetFaceUVBounds(aWireFace, Umin, Umax, Vmin, Vmax);
877 // PTV 01.11.2002 ACIS907, OCC921 end
878 if ( mySurf->IsUClosed() ) CutInterval ( intU, gp_Pnt2d(Umin,Umax), SUL-SUF );
879 if ( mySurf->IsVClosed() ) CutInterval ( intV, gp_Pnt2d(Vmin,Vmax), SVL-SVF );
880 centers.Append ( gp_Pnt2d ( 0.5*(Umin+Umax), 0.5*(Vmin+Vmax) ) );
883 // find best interval and thus compute shift
884 gp_Pnt2d shift(0.,0.);
885 if ( mySurf->IsUClosed() ) shift.SetX ( FindBestInterval ( intU ) );
886 if ( mySurf->IsVClosed() ) shift.SetY ( FindBestInterval ( intV ) );
888 // Adjust all other wires to be inside outer one
889 gp_Pnt2d center ( shift.X() + 0.5*(SUL-SUF), shift.Y() + 0.5*(SVL-SVF) );
890 for ( i=1; i <= nb; i++ ) {
891 TopoDS_Wire wire = TopoDS::Wire (ws.Value(i));
893 if ( mySurf->IsUClosed() )
894 sh.SetX ( ShapeAnalysis::AdjustByPeriod ( centers(i).X(), center.X(), SUL-SUF ) );
895 if ( mySurf->IsVClosed() )
896 sh.SetY ( ShapeAnalysis::AdjustByPeriod ( centers(i).Y(), center.Y(), SVL-SVF ) );
897 Shift2dWire ( wire, myFace, sh.XY(), mySurf );
900 // Create naturally bounded surface and add that wire to sequence
902 // Create fictive grid and call ComposeShell
903 Handle(Geom_RectangularTrimmedSurface) RTS =
904 new Geom_RectangularTrimmedSurface ( mySurf->Surface(), SUF+shift.X(), SUL+shift.X(),
905 SVF+shift.Y(), SVL+shift.Y() );
906 Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
907 grid->SetValue ( 1, 1, RTS );
908 Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
911 ShapeFix_ComposeShell CompShell;
912 CompShell.Init ( G, L, myFace, ::Precision::Confusion() );
913 CompShell.ClosedMode() = Standard_True;
914 CompShell.NaturalBoundMode() = Standard_True;
915 CompShell.SetContext( Context() );
916 CompShell.SetMaxTolerance(MaxTolerance());
918 TopoDS_Shape res = CompShell.Result();
920 Context()->Replace ( myFace, res );
921 for (TopExp_Explorer exp ( res, TopAbs_FACE ); exp.More(); exp.Next() ) {
922 myFace = TopoDS::Face ( exp.Current() );
923 BRepTools::Update(myFace); //:p4
925 myResult = Context()->Apply ( myResult );
929 Handle(Geom_Surface) surf = BRep_Tool::Surface ( myFace, L );
930 BRepBuilderAPI_MakeFace mf (surf, Precision::Confusion());
931 TopoDS_Face ftmp = mf.Face();
933 for (wi.Initialize (ftmp,Standard_False); wi.More(); wi.Next()) {
934 if(wi.Value().ShapeType() != TopAbs_WIRE)
936 TopoDS_Wire wire = TopoDS::Wire ( wi.Value() );
938 if ( shift.XY().Modulus() < ::Precision::PConfusion() ) continue;
939 Shift2dWire ( wire, myFace, shift.XY(), mySurf, Standard_True );
942 // Fix possible case on sphere when gap contains degenerated edge
943 // and thus has a common part with natural boundary
944 // Such hole should be merged with boundary
945 if ( mySurf->Adaptor3d()->GetType() == GeomAbs_Sphere &&
946 ws.Length() == nb+1 ) {
947 Handle(ShapeExtend_WireData) bnd =
948 new ShapeExtend_WireData ( TopoDS::Wire ( ws.Last() ) );
949 // code to become separate method FixTouchingWires()
950 for ( i=1; i <= nb; i++ ) {
951 Handle(ShapeExtend_WireData) sbwd =
952 new ShapeExtend_WireData ( TopoDS::Wire ( ws.Value(i) ) );
953 for (Standard_Integer j=1; j <= sbwd->NbEdges(); j++ ) {
954 if ( ! BRep_Tool::Degenerated ( sbwd->Edge(j) ) ) continue;
955 // find corresponding place in boundary
956 ShapeAnalysis_Edge sae;
957 TopoDS_Vertex V = sae.FirstVertex ( sbwd->Edge(j) );
959 for ( k=1; k <= bnd->NbEdges(); k++ ) {
960 if ( ! BRep_Tool::Degenerated ( bnd->Edge(k) ) ) continue;
961 if ( BRepTools::Compare ( V, sae.FirstVertex ( bnd->Edge(k) ) ) ) break;
963 if ( k > bnd->NbEdges() ) continue;
964 // and insert hole to that place
966 B.Degenerated ( sbwd->Edge(j), Standard_False );
967 B.Degenerated ( bnd->Edge(k), Standard_False );
969 bnd->Add ( sbwd, k+1 );
972 myFixWire->SetFace ( myFace );
973 myFixWire->Load ( bnd );
974 myFixWire->FixConnected();
975 myFixWire->FixDegenerated();
976 ws.SetValue ( ws.Length(), bnd->Wire() );
982 // Create resulting face
984 TopoDS_Shape S = myFace.EmptyCopied();
985 S.Orientation ( TopAbs_FORWARD );
986 for ( i = 1; i <= ws.Length(); i++ ) B.Add ( S, ws.Value(i) );
987 for ( i = 1; i <= vs.Length(); i++ ) B.Add ( S, vs.Value(i) );
988 if ( ! myFwd ) S.Orientation (TopAbs_REVERSED);
989 if ( ! Context().IsNull() ) Context()->Replace ( myFace, S );
990 myFace = TopoDS::Face ( S );
991 BRepTools::Update(myFace);
995 cout<<"Natural bound on sphere or torus with holes added"<<endl; // mise au point !
997 SendWarning ( myFace, Message_Msg ( "FixAdvFace.FixOrientation.MSG0" ) );// Face created with natural bounds
998 return Standard_True;
1002 //=======================================================================
1003 //function : FixOrientation
1005 //=======================================================================
1007 Standard_Boolean ShapeFix_Face::FixOrientation()
1009 TopTools_DataMapOfShapeListOfShape MapWires;
1011 return FixOrientation(MapWires);
1015 //=======================================================================
1016 //function : FixOrientation
1018 //=======================================================================
1020 Standard_Boolean ShapeFix_Face::FixOrientation(TopTools_DataMapOfShapeListOfShape &MapWires)
1022 Standard_Boolean done = Standard_False;
1024 if ( ! Context().IsNull() ) {
1025 TopoDS_Shape S = Context()->Apply ( myFace );
1026 myFace = TopoDS::Face ( S );
1028 TopTools_SequenceOfShape ws;
1029 TopTools_SequenceOfShape allSubShapes;
1030 // smh: BUC60810 : protection against very small wires (one-edge, null-length)
1031 TopTools_SequenceOfShape VerySmallWires;
1032 for ( TopoDS_Iterator wi (myFace,Standard_False); wi.More(); wi.Next()) {
1033 if(wi.Value().ShapeType() == TopAbs_VERTEX ||
1034 (wi.Value().Orientation() != TopAbs_FORWARD &&
1035 wi.Value().Orientation() != TopAbs_REVERSED)) {
1036 allSubShapes.Append (wi.Value());
1037 //ws.Append (wi.Value());
1041 TopoDS_Iterator ei (wi.Value(),Standard_False);
1043 Standard_Real length = RealLast();
1045 anEdge = TopoDS::Edge(ei.Value());
1047 if ( ! ei.More() ) {
1049 Standard_Real First, Last;
1050 Handle(Geom_Curve) c3d;
1051 ShapeAnalysis_Edge sae;
1052 if ( sae.Curve3d(anEdge,c3d,First,Last) ) {
1053 gp_Pnt pntIni = c3d->Value(First);
1055 prev = pntIni.XYZ();
1056 Standard_Integer NbControl = 10;
1057 for ( Standard_Integer j = 1; j < NbControl; j++) {
1058 Standard_Real prm = ((NbControl-1-j)*First + j*Last)/(NbControl-1);
1059 gp_Pnt pntCurr = c3d->Value(prm);
1060 gp_XYZ curr = pntCurr.XYZ();
1061 gp_XYZ delta = curr - prev;
1062 length += delta.Modulus();
1069 if (length > ::Precision::Confusion()) {
1070 ws.Append (wi.Value());
1071 allSubShapes.Append (wi.Value());
1073 else VerySmallWires.Append (wi.Value());
1075 if ( VerySmallWires.Length() >0 ) done = Standard_True;
1077 Standard_Integer nb = ws.Length();
1078 Standard_Integer nbAll = allSubShapes.Length();
1081 // if no wires, just do nothing
1082 if ( nb <= 0) return Standard_False;
1083 Standard_Integer nbInternal=0;
1084 Standard_Boolean isAddNaturalBounds = (NeedFix (myFixAddNaturalBoundMode) &&
1085 IsSurfaceUVPeriodic (mySurf->Surface()));
1086 TColStd_SequenceOfInteger aSeqReversed;
1087 // if wire is only one, check its orientation
1089 // skl 12.04.2002 for cases with nbwires>1 (VerySmallWires>1)
1090 // make face with only one wire (ws.Value(1))
1091 TopoDS_Shape dummy = myFace.EmptyCopied();
1092 TopoDS_Face af = TopoDS::Face ( dummy );
1093 af.Orientation ( TopAbs_FORWARD );
1094 B.Add (af,ws.Value(1));
1095 if ((myFixAddNaturalBoundMode != Standard_True || //: abv 29.08.01: Spatial_firex_lofting.sat
1096 !IsSurfaceUVPeriodic (mySurf->Surface()) ) &&
1097 !ShapeAnalysis::IsOuterBound (af) )
1099 Handle(ShapeExtend_WireData) sbdw =
1100 new ShapeExtend_WireData (TopoDS::Wire(ws.Value(1)));
1101 sbdw->Reverse ( myFace );
1102 ws.SetValue ( 1, sbdw->Wire() );
1103 SendWarning ( sbdw->Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
1104 done = Standard_True;
1106 cout<<"Wire reversed"<<endl; // mise au point !
1110 // in case of several wires, perform complex analysis
1112 // Plusieurs wires : orientations relatives
1113 // Chaque wire doit "contenir" tous les autres
1114 // Evidemment, en cas de peau de leopard, il peut y avoir probleme
1116 // On prend chaque wire (NB: pcurves presentes !)
1117 // En principe on devrait rejeter les wires non fermes (cf couture manque ?)
1118 // On le classe par rapport aux autres, qui doivent tous etre, soit IN soit
1119 // OUT. Sinon il y a imbrication -> SDB. Si IN, OK, si OUT on inverse
1120 // (nb : ici pas myClos donc pas de pb de couture)
1121 // Si au moins une inversion, il faut refaire la face (cf myRebil)
1123 //:94 abv 30 Jan 98: calculate parametric precision
1125 // GeomAdaptor_Surface& Ads = mySurf->Adaptor3d()->ChangeSurface();
1126 // Standard_Real toluv = Min ( Ads.UResolution(Precision()), Ads.VResolution(Precision()) );
1127 Standard_Boolean uclosed = mySurf->IsUClosed();
1128 Standard_Boolean vclosed = mySurf->IsVClosed();
1129 Standard_Real SUF, SUL, SVF, SVL;
1130 mySurf->Bounds(SUF, SUL, SVF, SVL);
1131 Standard_Real uRange = SUL - SUF;
1132 Standard_Real vRange = SVL - SVF;
1134 TopTools_DataMapOfShapeListOfShape MW;
1135 TopTools_DataMapOfShapeInteger SI;
1136 TopTools_MapOfShape MapIntWires;
1139 MapIntWires.Clear();
1140 Standard_Integer NbOuts=0;
1143 NCollection_Array1<Bnd_Box2d> aWireBoxes(1, nb);
1144 Standard_Real uMiddle = 0, vMiddle = 0;
1145 Standard_Boolean isFirst = Standard_True;
1146 //create Bounding boxes for each wire
1147 for ( i = 1; i <= nb; i ++) {
1148 TopoDS_Shape aShape = ws.Value(i);
1149 TopoDS_Wire aWire = TopoDS::Wire (aShape);
1151 Standard_Real cf,cl;
1152 TopoDS_Iterator ew (aWire);
1153 for(;ew.More(); ew.Next()) {
1154 TopoDS_Edge ed = TopoDS::Edge (ew.Value());
1155 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface (ed,myFace,cf,cl);
1156 Geom2dAdaptor_Curve gac;
1157 Standard_Real aFirst = cw->FirstParameter();
1158 Standard_Real aLast = cw->LastParameter();
1159 if(cw->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) && (cf < aFirst || cl > aLast)) {
1160 //avoiding problems with segment in Bnd_Box
1165 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),aBox);
1168 Standard_Real aXMin, aXMax, aYMin, aYMax;
1169 aBox.Get(aXMin, aYMin, aXMax, aYMax);
1171 isFirst = Standard_False;
1172 uMiddle = (aXMin + aXMax) * 0.5;
1173 vMiddle = (aYMin + aYMax) * 0.5;
1176 Standard_Real xShift = 0, yShift = 0;
1177 if ( mySurf->IsUClosed() )
1178 xShift = ShapeAnalysis::AdjustByPeriod ( 0.5*(aXMin + aXMax), uMiddle, uRange );
1179 if ( mySurf->IsVClosed() )
1180 yShift = ShapeAnalysis::AdjustByPeriod ( 0.5*(aYMin + aYMax), vMiddle, vRange ) ;
1181 aBox.Update(aXMin + xShift, aYMin + yShift, aXMax + xShift, aYMax + yShift);
1183 aWireBoxes.ChangeValue(i) = aBox;
1186 for ( i = 1; i <= nb; i ++) {
1187 TopoDS_Shape asw = ws.Value(i);
1188 TopoDS_Wire aw = TopoDS::Wire (asw);
1189 Bnd_Box2d aBox1 = aWireBoxes.Value(i);
1190 TopoDS_Shape dummy = myFace.EmptyCopied();
1191 TopoDS_Face af = TopoDS::Face ( dummy );
1192 // B.MakeFace (af,mySurf->Surface(),::Precision::Confusion());
1193 af.Orientation ( TopAbs_FORWARD );
1195 // PTV OCC945 06.11.2002 files ie_exhaust-A.stp (entities 3782, 3787)
1196 // tolerance is too big. It is seems that to identify placement of 2d point
1197 // it is enough Precision::PConfusion(), cause wea re know that 2d point in TopAbs_ON
1198 // BRepTopAdaptor_FClass2d clas (af,toluv);
1199 Standard_Boolean CheckShift = Standard_True;
1200 BRepTopAdaptor_FClass2d clas (af,::Precision::PConfusion());
1201 TopAbs_State sta = TopAbs_OUT;
1202 TopAbs_State staout = clas.PerformInfinitePoint();
1203 TopTools_ListOfShape IntWires;
1204 Standard_Integer aWireIt = 0;
1205 for ( Standard_Integer j = 1; j <= nbAll; j ++) {
1207 //if(i==j) continue;
1208 TopoDS_Shape aSh2 = allSubShapes.Value(j);
1211 TopAbs_State stb = TopAbs_UNKNOWN;
1212 if(aSh2.ShapeType() == TopAbs_VERTEX) {
1214 gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aSh2));
1215 gp_Pnt2d p2d = mySurf->ValueOfUV(aP,Precision::Confusion());
1216 stb = clas.Perform (p2d,Standard_False);
1217 if(stb == staout && (uclosed || vclosed)) {
1220 p2d1.SetCoord(p2d.X()+uRange, p2d.Y());
1221 stb = clas.Perform (p2d1,Standard_False);
1224 if(stb == staout && vclosed) {
1225 p2d1.SetCoord(p2d.X(), p2d.Y()+ vRange);
1226 stb = clas.Perform (p2d1,Standard_False);
1230 else if (aSh2.ShapeType() == TopAbs_WIRE) {
1231 CheckShift = Standard_True;
1232 TopoDS_Wire bw = TopoDS::Wire (aSh2);
1233 //Standard_Integer numin =0;
1234 Bnd_Box2d aBox2 = aWireBoxes.Value(aWireIt);
1235 if (aBox2.IsOut(aBox1))
1238 TopoDS_Iterator ew (bw);
1239 for(;ew.More(); ew.Next()) {
1240 TopoDS_Edge ed = TopoDS::Edge (ew.Value());
1241 Standard_Real cf,cl;
1242 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface (ed,myFace,cf,cl);
1243 if (cw.IsNull()) continue;
1244 gp_Pnt2d unp = cw->Value ((cf+cl)/2.);
1245 TopAbs_State ste = clas.Perform (unp,Standard_False);
1246 if( ste==TopAbs_OUT || ste==TopAbs_IN ) {
1247 if(stb==TopAbs_UNKNOWN) {
1252 sta = TopAbs_UNKNOWN;
1260 Standard_Boolean found = Standard_False;
1262 if( stb == staout && CheckShift ) {
1263 CheckShift = Standard_False;
1265 unp1.SetCoord(unp.X()+uRange, unp.Y());
1266 found = (staout != clas.Perform (unp1,Standard_False));
1268 unp1.SetX(unp.X()-uRange);
1269 found = (staout != clas.Perform (unp1,Standard_False));
1272 if(vclosed&&!found) {
1273 unp1.SetCoord(unp.X(), unp.Y()+vRange);
1274 found = (staout != clas.Perform (unp1,Standard_False));
1276 unp1.SetY(unp.Y()-vRange);
1277 found = (staout != clas.Perform (unp1,Standard_False));
1282 if(stb==TopAbs_IN) stb = TopAbs_OUT;
1283 else stb = TopAbs_IN;
1284 Shift2dWire(bw,myFace,unp1.XY()-unp.XY(), mySurf);
1292 IntWires.Append(aSh2);
1293 MapIntWires.Add(aSh2);
1297 if (sta == TopAbs_UNKNOWN) { // ERREUR
1298 SendWarning ( aw, Message_Msg ( "FixAdvFace.FixOrientation.MSG11" ) );// Cannot orient wire
1301 MW.Bind(aw,IntWires);
1302 if(sta==TopAbs_OUT) {
1304 if(staout==TopAbs_IN) {
1305 // wire is OUT but InfinitePoint is IN => need to reverse
1306 ShapeExtend_WireData sewd (aw);
1307 sewd.Reverse(myFace);
1308 ws.SetValue (i,sewd.Wire());
1309 SendWarning ( sewd.Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
1310 aSeqReversed.Append(i);
1311 done = Standard_True;
1312 SI.Bind(ws.Value(i),1);
1313 MapWires.Bind(ws.Value(i),IntWires);
1317 MapWires.Bind(aw,IntWires);
1321 if(staout==TopAbs_OUT) SI.Bind(aw,2);
1328 for(i=1; i<=nb; i++) {
1329 TopoDS_Wire aw = TopoDS::Wire (ws.Value(i));
1330 Standard_Integer tmpi = SI.Find(aw);
1332 if(!MapIntWires.Contains(aw)) {
1334 const TopTools_ListOfShape& IW = MW.Find(aw);
1336 // wire is OUT but InfinitePoint is IN => need to reverse
1337 ShapeExtend_WireData sewd (aw);
1338 sewd.Reverse(myFace);
1339 ws.SetValue (i,sewd.Wire());
1340 SendWarning ( sewd.Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
1341 aSeqReversed.Append(i);
1342 done = Standard_True;
1343 MapWires.Bind(ws.Value(i),IW);
1345 else MapWires.Bind(aw,IW);
1349 // wire is IN but InfinitePoint is OUT => need to reverse
1350 ShapeExtend_WireData sewd (aw);
1351 sewd.Reverse(myFace);
1352 ws.SetValue (i,sewd.Wire());
1353 SendWarning ( sewd.Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
1354 aSeqReversed.Append(i);
1355 done = Standard_True;
1363 //done = (done && (nb ==1 || (isAddNaturalBounds || (!isAddNaturalBounds && nbInternal <nb))));
1364 if(isAddNaturalBounds && nb == aSeqReversed.Length())
1365 done = Standard_False;
1367 done = (done && (nb ==1 || (isAddNaturalBounds || (!isAddNaturalBounds && nbInternal <nb))));
1368 // Faut-il reconstruire ? si myRebil est mis
1370 TopoDS_Shape S = myFace.EmptyCopied();
1371 S.Orientation ( TopAbs_FORWARD );
1372 Standard_Integer i = 1;
1373 for ( ; i <= nb; i++ )
1374 B.Add ( S, ws.Value(i) );
1377 for( i =1; i <= nbAll;i++) {
1378 TopoDS_Shape aS2 = allSubShapes.Value(i);
1379 if(aS2.ShapeType() != TopAbs_WIRE ||
1380 (aS2.Orientation() != TopAbs_FORWARD && aS2.Orientation() != TopAbs_REVERSED))
1385 if ( ! myFwd ) S.Orientation (TopAbs_REVERSED);
1386 if ( ! Context().IsNull() ) Context()->Replace ( myFace, S );
1387 myFace = TopoDS::Face ( S );
1388 BRepTools::Update(myFace);
1389 Standard_Integer k =1;
1390 for( ; k <= aSeqReversed.Length(); k++ )
1393 cout<<"Wire no "<<aSeqReversed.Value(k)<<" of "<<nb<<" reversed"<<endl; // mise au point !
1402 //=======================================================================
1403 //function : CheckWire
1404 //purpose : auxilary for FixMissingSeam
1405 //=======================================================================
1406 //:i7 abv 18 Sep 98: ProSTEP TR9 r0501-ug.stp: algorithm of fixing missing seam changed
1407 // test whether the wire is opened on period of periodical surface
1408 static Standard_Boolean CheckWire (const TopoDS_Wire &wire,
1409 const TopoDS_Face &face,
1410 const Standard_Real dU,
1411 const Standard_Real dV,
1412 Standard_Integer &isuopen,
1413 Standard_Integer &isvopen,
1414 Standard_Boolean &isDeg)
1419 ShapeAnalysis_Edge sae;
1421 isuopen = isvopen = 0;
1422 isDeg = Standard_True;
1423 for ( TopoDS_Iterator ed(wire); ed.More(); ed.Next() ) {
1424 TopoDS_Edge edge = TopoDS::Edge ( ed.Value() );
1425 if ( ! BRep_Tool::Degenerated ( edge ) ) isDeg = Standard_False;
1426 Handle(Geom2d_Curve) c2d;
1428 if ( ! sae.PCurve ( edge, face, c2d, f, l, Standard_True ) )
1429 return Standard_False;
1430 vec += c2d->Value(l).XY() - c2d->Value(f).XY();
1433 Standard_Real aDelta = Abs(vec.X())-dU;
1434 if(Abs(aDelta) < 0.1*dU)
1450 aDelta = Abs(vec.Y())-dV;
1451 if(Abs(aDelta) < 0.1*dV)
1467 return isuopen || isvopen;
1470 //=======================================================================
1471 //function : FixMissingSeam
1473 //=======================================================================
1474 Standard_Boolean ShapeFix_Face::FixMissingSeam()
1476 Standard_Boolean uclosed = mySurf->IsUClosed();
1477 Standard_Boolean vclosed = mySurf->IsVClosed();
1479 if ( ! uclosed && ! vclosed ) return Standard_False;
1481 if ( ! Context().IsNull() ) {
1482 TopoDS_Shape S = Context()->Apply ( myFace );
1483 myFace = TopoDS::Face ( S );
1486 //%pdn: surface should be made periodic before (see ShapeCustom_Surface)!
1487 if (mySurf->Surface()->IsKind(STANDARD_TYPE (Geom_BSplineSurface))) {
1488 Handle (Geom_BSplineSurface) BSpl = Handle (Geom_BSplineSurface)::DownCast (mySurf->Surface());
1489 if (!BSpl->IsUPeriodic() && !BSpl->IsVPeriodic())
1490 return Standard_False;
1493 Standard_Real URange, VRange, SUF, SUL, SVF, SVL;
1494 mySurf->Bounds ( SUF, SUL, SVF, SVL );
1495 Standard_Real fU1,fU2,fV1,fV2;
1496 BRepTools::UVBounds(myFace,fU1,fU2,fV1,fV2);
1498 //pdn OCC55 fix to faces without the wires to avoid identical first and last parameters
1499 if ( ::Precision::IsInfinite ( SUF ) || ::Precision::IsInfinite ( SUL ) ) {
1500 if ( ::Precision::IsInfinite ( SUF ) ) SUF = fU1;
1501 if ( ::Precision::IsInfinite ( SUL ) ) SUL = fU2;
1502 if(Abs(SUL-SUF) < ::Precision::PConfusion()) {
1503 if ( ::Precision::IsInfinite ( SUF ) ) SUF-=1000.;
1507 if ( ::Precision::IsInfinite ( SVF ) || ::Precision::IsInfinite ( SVL ) ) {
1508 if ( ::Precision::IsInfinite ( SVF ) ) SVF = fV1;
1509 if ( ::Precision::IsInfinite ( SVL ) ) SVL = fV2;
1510 if(Abs(SVL-SVF) < ::Precision::PConfusion()) {
1511 if ( ::Precision::IsInfinite ( SVF ) ) SVF-=1000.;
1516 URange = Min(Abs (SUL - SUF), Precision::Infinite());
1517 VRange = Min(Abs(SVL - SVF), Precision::Infinite());
1518 // Standard_Real UTol = 0.2 * URange, VTol = 0.2 * VRange;
1519 Standard_Integer ismodeu = 0, ismodev = 0; //szv#4:S4163:12Mar99 was Boolean
1520 Standard_Integer isdeg1=0, isdeg2=0;
1522 TopTools_SequenceOfShape ws;
1523 TopTools_SequenceOfShape aSeqNonManif;
1524 for ( TopoDS_Iterator wi(myFace,Standard_False); wi.More(); wi.Next() ) {
1525 if(wi.Value().ShapeType() != TopAbs_WIRE ||
1526 (wi.Value().Orientation() != TopAbs_FORWARD && wi.Value().Orientation() != TopAbs_REVERSED)) {
1527 aSeqNonManif.Append(wi.Value());
1530 ws.Append ( wi.Value() );
1535 for ( i=1; i <= ws.Length(); i++ ) {
1536 TopoDS_Wire wire = TopoDS::Wire ( ws.Value(i) );
1537 Standard_Integer isuopen, isvopen;
1538 Standard_Boolean isdeg;
1539 if ( ! CheckWire ( wire, myFace, URange, VRange, isuopen, isvopen, isdeg ) )
1541 if ( w1.IsNull() ) { w1 = wire; ismodeu = isuopen; ismodev = isvopen; isdeg1 = isdeg ? i : 0; }
1542 else if ( w2.IsNull() ) {
1543 if ( ismodeu == -isuopen && ismodev == -isvopen ) { w2 = wire; isdeg2 = isdeg ? i : 0; }
1544 else if ( ismodeu == isuopen && ismodev == isvopen ) {
1547 //:abv 29.08.01: If wires are contraversal, reverse one of them
1548 // If first one is single degenerated edge, reverse it; else second
1557 if ( ! isdeg2 ) cout << "Warning: ShapeFix_Face::FixMissingSeam(): wire reversed" << endl;
1562 else cout << "Warning: ShapeFix_Face::FixMissingSeam(): incompatible open wires" << endl;
1565 // else return Standard_False; // abort
1568 cout << "Warning: ShapeFix_Face::FixMissingSeam(): more than two open wires detected!" << endl;
1570 //:abv 30.08.09: if more than one open wires and more than two of them are
1571 // completely degenerated, remove any of them
1572 if ( isdeg || isdeg1 || isdeg2 ) {
1573 ws.Remove ( isdeg ? i : isdeg2 ? isdeg2 : isdeg1 );
1578 cout << "Warning: ShapeFix_Face::FixMissingSeam(): open degenerated wire removed" << endl;
1586 if ( w1.IsNull() ) return Standard_False;
1587 else if ( w2.IsNull() ) {
1588 // WARNING!!! Temporarily for spheres only:
1589 // If only one of wires limiting face on sphere is open in 2d,
1590 // this means that degenerated edge should be added to one of poles, and
1591 // then usual procedure applied
1592 if ( ismodeu && mySurf->Surface()->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ) {
1593 gp_Pnt2d p ( ( ismodeu < 0 ? 0. : 2.*M_PI ), ismodeu * 0.5 * M_PI );
1594 gp_Dir2d d ( -ismodeu, 0. );
1595 Handle(Geom2d_Line) line = new Geom2d_Line ( p, d );
1597 B.MakeEdge ( edge );
1598 B.Degenerated ( edge, Standard_True );
1599 B.UpdateEdge ( edge, line, myFace, ::Precision::Confusion() );
1600 B.Range ( edge, myFace, 0., 2*M_PI );
1602 B.MakeVertex ( V, mySurf->Value ( p.X(), p.Y() ), ::Precision::Confusion() );
1603 V.Orientation(TopAbs_FORWARD);
1605 V.Orientation(TopAbs_REVERSED);
1611 else return Standard_False;
1614 // sort original wires
1615 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
1616 sfw->SetFace ( myFace );
1617 sfw->SetPrecision ( Precision() );
1619 Handle(ShapeExtend_WireData) wd1 = new ShapeExtend_WireData ( w1 );
1620 Handle(ShapeExtend_WireData) wd2 = new ShapeExtend_WireData ( w2 );
1623 // Standard_Boolean degenerated = ( secondDeg != firstDeg );
1624 // if ( ! degenerated ) {
1631 //:abv 29.08.01: reconstruct face taking into account reversing
1632 TopoDS_Shape dummy = myFace.EmptyCopied();
1633 TopoDS_Face tmpF = TopoDS::Face ( dummy );
1634 tmpF.Orientation ( TopAbs_FORWARD );
1635 for ( i=1; i <= ws.Length(); i++ ) {
1636 TopoDS_Wire wire = TopoDS::Wire ( ws.Value(i) );
1637 if ( wire.IsSame ( w1 ) ) wire = w1;
1638 else if ( wire.IsSame ( w2 ) ) wire = w2;
1639 B.Add ( tmpF, wire );
1641 tmpF.Orientation ( myFace.Orientation() );
1643 Standard_Real uf=SUF, vf=SVF;
1645 // A special kind of FixShifted is necessary for torus-like
1646 // surfaces to adjust wires by period ALONG the missing SEAM direction
1647 // tr9_r0501-ug.stp #187640
1648 if ( uclosed && vclosed ) {
1649 Standard_Integer coord = ( ismodeu ? 1 : 0 );
1650 Standard_Integer isneg = ( ismodeu ? ismodeu : -ismodev );
1651 Standard_Real period = ( ismodeu ? URange : VRange );
1653 Standard_Real m1[2][2], m2[2][2];
1654 S = tmpF.EmptyCopied();
1656 ShapeAnalysis::GetFaceUVBounds (TopoDS::Face(S), m1[0][0], m1[0][1], m1[1][0], m1[1][1]);
1657 S = tmpF.EmptyCopied();
1659 ShapeAnalysis::GetFaceUVBounds (TopoDS::Face(S), m2[0][0], m2[0][1], m2[1][0], m2[1][1]);
1660 Standard_Real shiftw2 =
1661 ShapeAnalysis::AdjustByPeriod ( 0.5 * ( m2[coord][0] + m2[coord][1] ),
1662 0.5 * ( m1[coord][0] + m1[coord][1] +
1663 isneg * ( period + ::Precision::PConfusion() ) ),
1665 m1[coord][0] = Min ( m1[coord][0], m2[coord][0] + shiftw2 );
1666 m1[coord][1] = Max ( m1[coord][1], m2[coord][1] + shiftw2 );
1667 for ( TopoDS_Iterator it(tmpF,Standard_False); it.More(); it.Next() ) {
1668 if(it.Value().ShapeType() != TopAbs_WIRE)
1670 TopoDS_Wire w = TopoDS::Wire ( it.Value() );
1671 if ( w == w1 ) continue;
1672 Standard_Real shift;
1673 if ( w == w2 ) shift = shiftw2;
1675 S = tmpF.EmptyCopied();
1677 ShapeAnalysis::GetFaceUVBounds (TopoDS::Face(S), m2[0][0], m2[0][1], m2[1][0], m2[1][1]);
1678 shift = ShapeAnalysis::AdjustByPeriod ( 0.5 * ( m2[coord][0] + m2[coord][1] ),
1679 0.5 * ( m1[coord][0] + m1[coord][1] ), period );
1681 if ( shift != 0. ) {
1683 V.SetCoord ( coord+1, shift );
1684 ShapeAnalysis_Edge sae;
1685 for ( TopoDS_Iterator iw(w); iw.More(); iw.Next() ) {
1686 TopoDS_Edge E = TopoDS::Edge ( iw.Value() );
1687 Handle(Geom2d_Curve) C;
1689 if ( ! sae.PCurve ( E, tmpF, C, a, b ) ) continue;
1694 // abv 05 Feb 02: OCC34
1695 // by the way, select proper split place by V to avoid extra intersections
1696 if ( m1[coord][1] - m1[coord][0] <= period ) {
1697 Standard_Real other = 0.5 * ( m1[coord][0] + m1[coord][1] - period );
1698 if ( ismodeu ) vf = other;
1703 // find the best place by u and v to insert a seam
1704 // (so as to minimize splitting edges as possible)
1705 ShapeAnalysis_Edge sae;
1706 Standard_Integer foundU=0, foundV=0;
1707 Standard_Integer nb1 = wd1->NbEdges();
1708 Standard_Integer nb2 = wd2->NbEdges();
1709 for ( Standard_Integer i1 = 1; i1 <= nb1 + nb2; i1++ ) {
1710 TopoDS_Edge edge1 = ( i1 <= nb1 ? wd1->Edge ( i1 ) : wd2->Edge ( i1-nb1 ) );
1711 Handle(Geom2d_Curve) c2d;
1713 if ( ! sae.PCurve ( edge1, tmpF, c2d, f, l, Standard_True ) ) return Standard_False;
1714 gp_Pnt2d pos1 = c2d->Value(l).XY();
1715 // the best place is end of edge which is nearest to 0
1716 Standard_Boolean skipU = ! uclosed;
1717 if ( uclosed && ismodeu ) {
1718 pos1.SetX ( pos1.X() + ShapeAnalysis::AdjustByPeriod ( pos1.X(), SUF, URange ) );
1719 if ( foundU ==2 && Abs ( pos1.X() ) > Abs(uf) ) skipU = Standard_True;
1720 else if ( ! foundU || ( foundU ==1 && Abs ( pos1.X() ) < Abs(uf) ) ) {
1725 Standard_Boolean skipV = ! vclosed;
1726 if ( vclosed && ! ismodeu ) {
1727 pos1.SetY ( pos1.Y() + ShapeAnalysis::AdjustByPeriod ( pos1.Y(), SVF, URange ) );
1728 if ( foundV ==2 && Abs ( pos1.Y() ) > Abs(vf) ) skipV = Standard_True;
1729 else if ( ! foundV || ( foundV ==1 && Abs ( pos1.Y() ) < Abs(vf) ) ) {
1734 if ( skipU && skipV ) {
1735 if ( i1 <= nb1 ) continue;
1738 // or yet better - if it is end of some edges on both wires
1739 for ( Standard_Integer i2 = 1; i1 <= nb1 && i2 <= nb2; i2++ ) {
1740 TopoDS_Edge edge2 = wd2->Edge ( i2 );
1741 if ( ! sae.PCurve ( edge2, tmpF, c2d, f, l, Standard_True ) ) return Standard_False;
1742 gp_Pnt2d pos2 = c2d->Value(f).XY();
1743 if ( uclosed && ismodeu ) {
1744 pos2.SetX ( pos2.X() + ShapeAnalysis::AdjustByPeriod ( pos2.X(), pos1.X(), URange ) );
1745 if ( Abs ( pos2.X() - pos1.X() ) < ::Precision::PConfusion() &&
1746 ( foundU != 2 || Abs ( pos1.X() ) < Abs ( uf ) ) ) {
1751 if ( vclosed && ! ismodeu ) {
1752 pos2.SetY ( pos2.Y() + ShapeAnalysis::AdjustByPeriod ( pos2.Y(), pos1.Y(), VRange ) );
1753 if ( Abs ( pos2.Y() - pos1.Y() ) < ::Precision::PConfusion() &&
1754 ( foundV != 2 || Abs ( pos1.Y() ) < Abs ( vf ) ) ) {
1762 //pdn fixing RTS on offsets
1763 if ( uf < SUF || uf > SUL )
1764 uf+=ShapeAnalysis::AdjustToPeriod(uf,SUF,SUF+URange);
1765 if ( vf < SVF || vf > SVL )
1766 vf+=ShapeAnalysis::AdjustToPeriod(vf,SVF,SVF+VRange);
1768 // Create fictive grid and call ComposeShell to insert a seam
1769 Handle(Geom_RectangularTrimmedSurface) RTS =
1770 new Geom_RectangularTrimmedSurface ( mySurf->Surface(), uf, uf+URange, vf, vf+VRange );
1771 Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
1772 grid->SetValue ( 1, 1, RTS ); //mySurf->Surface() );
1773 Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
1776 //addition non-manifold topology
1777 Standard_Integer j=1;
1778 for( ; j <= aSeqNonManif.Length(); j++)
1779 B.Add(tmpF,aSeqNonManif.Value(j));
1781 ShapeFix_ComposeShell CompShell;
1782 // TopoDS_Face tmpF = myFace;
1783 // tmpF.Orientation(TopAbs_FORWARD);
1784 CompShell.Init ( G, L, tmpF, ::Precision::Confusion() );//myPrecision
1785 if ( Context().IsNull() ) SetContext ( new ShapeBuild_ReShape );
1786 CompShell.ClosedMode() = Standard_True;
1787 CompShell.SetContext( Context() );
1788 CompShell.SetMaxTolerance(MaxTolerance());
1789 CompShell.Perform();
1791 // abv 03.07.00: CAX-IF TRJ4: trj4_k1_goe-tu-214.stp: #785: reset mySurf
1792 mySurf = new ShapeAnalysis_Surface ( RTS );
1794 myResult = CompShell.Result();
1795 // if ( myFace.Orientation() == TopAbs_REVERSED ) res.Reverse();
1796 Context()->Replace ( myFace, myResult );
1797 for (TopExp_Explorer exp ( myResult, TopAbs_FACE ); exp.More(); exp.Next() ) {
1798 myFace = TopoDS::Face ( exp.Current() );
1799 BRepTools::Update(myFace); //:p4
1802 SendWarning ( Message_Msg ( "FixAdvFace.FixMissingSeam.MSG0" ) );// Missing seam-edge added
1803 return Standard_True;
1806 //=======================================================================
1807 //function : FixSmallAreaWire
1809 //=======================================================================
1811 //%14 pdn 24.02.99 PRO10109, USA60293 fix wire on face with small area.
1812 Standard_Boolean ShapeFix_Face::FixSmallAreaWire()
1814 if ( ! Context().IsNull() ) {
1815 TopoDS_Shape S = Context()->Apply ( myFace );
1816 myFace = TopoDS::Face ( S );
1820 TopoDS_Shape emptyCopied = myFace.EmptyCopied();
1821 TopoDS_Face face = TopoDS::Face (emptyCopied);
1822 Standard_Integer nbRemoved = 0, nbWires = 0;
1824 Standard_Real prec = ::Precision::PConfusion()*100;
1825 for (TopoDS_Iterator wi (myFace, Standard_False); wi.More(); wi.Next()) {
1826 if(wi.Value().ShapeType() != TopAbs_WIRE &&
1827 (wi.Value().Orientation() != TopAbs_FORWARD && wi.Value().Orientation() != TopAbs_REVERSED))
1829 TopoDS_Wire wire = TopoDS::Wire ( wi.Value() );
1830 Handle(ShapeAnalysis_Wire) saw = new ShapeAnalysis_Wire(wire,myFace,prec);
1831 if ( saw->CheckSmallArea(prec) )
1833 SendWarning ( wire, Message_Msg ("FixAdvFace.FixSmallAreaWire.MSG0") );// Null area wire detected, wire skipped
1842 if ( nbRemoved <=0 ) return Standard_False;
1844 if ( nbWires <=0 ) {
1846 cout << "Warning: ShapeFix_Face: All wires on a face have small area; left untouched" << endl;
1848 return Standard_False;
1851 cout << "Warning: ShapeFix_Face: " << nbRemoved << " small area wire(s) removed" << endl;
1853 if ( ! Context().IsNull() ) Context()->Replace ( myFace, face );
1855 return Standard_True;
1857 //=======================================================================
1858 //function : FixLoopWire
1860 //=======================================================================
1861 static void FindNext(const TopoDS_Shape& aVert,
1862 const TopoDS_Shape& ainitEdge,
1863 TopTools_IndexedMapOfShape& aMapVertices,
1864 TopTools_DataMapOfShapeListOfShape& aMapVertexEdges,
1865 const TopTools_MapOfShape& aMapSmallEdges,
1866 const TopTools_MapOfShape& aMapSeemEdges,
1867 TopTools_MapOfShape& aMapEdges,
1868 Handle(ShapeExtend_WireData)& aWireData)
1870 TopoDS_Iterator aItV(ainitEdge);
1871 TopoDS_Shape anextVert = aVert;
1872 Standard_Boolean isFind = Standard_False;
1873 for( ; aItV.More() && !isFind; aItV.Next())
1875 if(!aItV.Value().IsSame(aVert) ) {
1876 isFind = Standard_True;
1877 anextVert = aItV.Value();
1882 if(!isFind && !aMapSmallEdges.Contains(ainitEdge))
1884 if(isFind && aMapVertices.Contains(anextVert))
1887 const TopTools_ListOfShape& aledges = aMapVertexEdges.Find(anextVert);
1888 TopTools_ListIteratorOfListOfShape liter(aledges);
1889 isFind = Standard_False;
1890 TopoDS_Shape anextEdge;
1891 for( ; liter.More() && !isFind; liter.Next())
1893 if(!aMapEdges.Contains(liter.Value()) && !liter.Value().IsSame(ainitEdge)) {
1894 anextEdge = liter.Value();
1895 aWireData->Add(anextEdge);
1896 if(aMapSeemEdges.Contains(anextEdge))
1897 aWireData->Add(anextEdge.Reversed());
1898 isFind = Standard_True;
1899 aMapEdges.Add(anextEdge);
1900 FindNext(anextVert,anextEdge,aMapVertices,aMapVertexEdges,aMapSmallEdges,aMapSeemEdges,aMapEdges,aWireData);
1906 static Standard_Boolean isClosed2D(const TopoDS_Face& aFace,const TopoDS_Wire& aWire)
1908 Standard_Boolean isClosed = Standard_True;
1909 Handle(ShapeAnalysis_Wire) asaw = new ShapeAnalysis_Wire(aWire,aFace,Precision::Confusion());
1910 for (Standard_Integer i = 1; i <= asaw->NbEdges() && isClosed; i++) {
1911 TopoDS_Edge edge1 = asaw->WireData()->Edge(i);
1912 //checking that wire is closed in 2D space with tolerance of vertex.
1913 ShapeAnalysis_Edge sae;
1914 TopoDS_Vertex v1 = sae.FirstVertex(edge1);
1915 asaw->SetPrecision(BRep_Tool::Tolerance(v1));
1916 asaw->CheckGap2d(i);
1917 isClosed = (asaw->LastCheckStatus(ShapeExtend_OK));
1923 //=======================================================================
1924 //function : FixLoopWire
1926 //=======================================================================
1928 Standard_Boolean ShapeFix_Face::FixLoopWire(TopTools_SequenceOfShape& aResWires)
1930 TopTools_IndexedMapOfShape aMapVertices;
1931 TopTools_DataMapOfShapeListOfShape aMapVertexEdges;
1932 TopTools_MapOfShape aMapSmallEdges;
1933 TopTools_MapOfShape aMapSeemEdges;
1934 if(!FixWireTool()->Analyzer()->CheckLoop(aMapVertices, aMapVertexEdges,aMapSmallEdges,aMapSeemEdges))
1935 return Standard_False;
1938 TopTools_MapOfShape aMapEdges;
1939 TopTools_SequenceOfShape aSeqWires;
1941 //collecting wires from common vertex belonging more than 2 edges
1942 Standard_Integer i =1;
1943 for( ; i <= aMapVertices.Extent(); i++) {
1944 TopoDS_Shape aVert = aMapVertices.FindKey(i);
1945 const TopTools_ListOfShape& aledges = aMapVertexEdges.Find(aVert);
1946 TopTools_ListIteratorOfListOfShape liter(aledges);
1947 for( ; liter.More(); liter.Next())
1949 TopoDS_Edge Edge = TopoDS::Edge(liter.Value());
1950 if(aMapEdges.Contains(Edge))
1953 Handle(ShapeExtend_WireData) aWireData = new ShapeExtend_WireData;
1954 aWireData->Add(Edge);
1955 if(aMapSeemEdges.Contains(Edge))
1956 aWireData->Add(Edge.Reversed());
1957 aMapEdges.Add(Edge);
1958 FindNext(aVert,Edge,aMapVertices,aMapVertexEdges,aMapSmallEdges,aMapSeemEdges,aMapEdges,aWireData);
1959 if(aWireData->NbEdges() ==1 && aMapSmallEdges.Contains(aWireData->Edge(1)))
1961 TopoDS_Vertex aV1,aV2;
1962 TopoDS_Wire aWire = aWireData->Wire();
1963 TopExp::Vertices(aWire,aV1,aV2);
1965 if(aV1.IsSame(aV2)) {
1966 Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(aWire);
1967 Handle(ShapeFix_Wire) asfw = new ShapeFix_Wire;
1970 TopoDS_Wire awire2 = asfw->Wire();
1971 aResWires.Append(awire2);
1974 else aSeqWires.Append(aWireData->Wire());
1979 if(aSeqWires.Length() ==1) {
1980 aResWires.Append(aSeqWires.Value(1));
1983 //collecting whole wire from two not closed wires having two common vertices.
1984 for( i =1; i <= aSeqWires.Length(); i++) {
1985 TopoDS_Vertex aV1,aV2;
1986 TopoDS_Wire aWire = TopoDS::Wire(aSeqWires.Value(i));
1987 TopExp::Vertices(aWire,aV1,aV2);
1988 Standard_Integer j = i+1;
1989 for( ; j <= aSeqWires.Length(); j++)
1991 TopoDS_Vertex aV21,aV22;
1992 TopoDS_Wire aWire2 = TopoDS::Wire(aSeqWires.Value(j));
1993 TopExp::Vertices(aWire2,aV21,aV22);
1994 if((aV1.IsSame(aV21) || aV1.IsSame(aV22)) && (aV2.IsSame(aV21) || aV2.IsSame(aV22)))
1996 Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(aWire);
1998 Handle(ShapeFix_Wire) asfw = new ShapeFix_Wire;
2001 aResWires.Append(asfw->Wire());
2002 aSeqWires.Remove(j--);
2003 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2008 if(j <= aSeqWires.Length())
2009 aSeqWires.Remove(i--);
2012 if(aSeqWires.Length()<3) {
2013 for( i =1; i <= aSeqWires.Length(); i++)
2014 aResWires.Append(aSeqWires.Value(i));
2018 //collecting wires having one common vertex
2019 for( i =1; i <= aSeqWires.Length(); i++) {
2020 TopoDS_Vertex aV1,aV2;
2021 TopoDS_Wire aWire = TopoDS::Wire(aSeqWires.Value(i));
2022 TopExp::Vertices(aWire,aV1,aV2);
2023 Standard_Integer j =i+1;
2024 for( ; j <= aSeqWires.Length(); j++)
2026 TopoDS_Vertex aV21,aV22;
2027 TopoDS_Wire aWire2 = TopoDS::Wire(aSeqWires.Value(j));
2028 TopExp::Vertices(aWire2,aV21,aV22);
2029 if((aV1.IsSame(aV21) || aV1.IsSame(aV22)) || (aV2.IsSame(aV21) || aV2.IsSame(aV22)))
2031 Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(aWire);
2033 Handle(ShapeFix_Wire) asfw = new ShapeFix_Wire;
2036 aWire = asfw->Wire();
2037 TopExp::Vertices(aWire,aV1,aV2);
2038 aSeqWires.Remove(j--);
2039 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2042 aResWires.Append(aWire);
2047 Standard_Boolean isClosed = Standard_True;
2049 //checking that obtained wires is closed in 2D space
2050 if (mySurf->Adaptor3d()->GetType() != GeomAbs_Plane) {
2052 TopoDS_Shape emptyCopied = myFace.EmptyCopied();
2053 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
2054 tmpFace.Orientation ( TopAbs_FORWARD );
2056 for(i =1; i <= aResWires.Length() && isClosed; i++) {
2057 TopoDS_Wire awire = TopoDS::Wire(aResWires.Value(i));
2058 isClosed = isClosed2D(tmpFace,awire);
2062 Standard_Boolean isDone =(aResWires.Length() && isClosed);
2063 if(isDone && aResWires.Length() >1)
2066 cout<<"Wire was splitted on "<<aResWires.Length()<<" wires"<< endl;
2073 //=======================================================================
2074 //function : SplitEdge
2076 //=======================================================================
2078 Standard_Boolean ShapeFix_Face::SplitEdge(const Handle(ShapeExtend_WireData)& sewd,
2079 const Standard_Integer num,
2080 const Standard_Real param,
2081 const TopoDS_Vertex& vert,
2082 const Standard_Real preci,
2083 ShapeFix_DataMapOfShapeBox2d& boxes)
2085 TopoDS_Edge edge = sewd->Edge(num);
2086 TopoDS_Edge newE1, newE2;
2087 ShapeFix_SplitTool aTool;
2088 if(aTool.SplitEdge(edge,param,vert,myFace,newE1,newE2,preci,0.01*preci)) {
2090 Handle(ShapeExtend_WireData) wd = new ShapeExtend_WireData;
2093 if(!Context().IsNull()) Context()->Replace( edge, wd->Wire() );
2094 for (TopExp_Explorer exp ( wd->Wire(), TopAbs_EDGE ); exp.More(); exp.Next() ) {
2095 TopoDS_Edge E = TopoDS::Edge ( exp.Current() );
2096 BRepTools::Update(E);
2099 // for ( Standard_Integer i=1; i <= sewd->NbEdges(); i++ ) {
2100 // TopoDS_Edge E = sewd->Edge(i);
2101 // TopoDS_Shape S = Context()->Apply ( E );
2102 // if ( S == E ) continue;
2103 // for ( TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next() )
2104 // sewd->Add ( exp.Current(), i++ );
2105 // sewd->Remove ( i-- );
2108 // change sewd and boxes
2109 sewd->Set(newE1,num);
2110 if(num==sewd->NbEdges())
2113 sewd->Add(newE2,num+1);
2117 const Handle(Geom_Surface)& S = BRep_Tool::Surface(myFace,L);
2118 Handle(Geom2d_Curve) c2d;
2119 Standard_Real cf,cl;
2120 ShapeAnalysis_Edge sae;
2121 if(sae.PCurve(newE1,S,L,c2d,cf,cl,Standard_False)) {
2123 Geom2dAdaptor_Curve gac;
2124 Standard_Real aFirst = c2d->FirstParameter();
2125 Standard_Real aLast = c2d->LastParameter();
2126 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2127 && (cf < aFirst || cl > aLast)) {
2128 //pdn avoiding problems with segment in Bnd_Box
2132 gac.Load(c2d,cf,cl);
2133 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2134 boxes.Bind(newE1,box);
2136 if(sae.PCurve(newE2,S,L,c2d,cf,cl,Standard_False)) {
2138 Geom2dAdaptor_Curve gac;
2139 Standard_Real aFirst = c2d->FirstParameter();
2140 Standard_Real aLast = c2d->LastParameter();
2141 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2142 && (cf < aFirst || cl > aLast)) {
2143 //pdn avoiding problems with segment in Bnd_Box
2147 gac.Load(c2d,cf,cl);
2148 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2149 boxes.Bind(newE2,box);
2151 return Standard_True;
2153 return Standard_False;
2157 //=======================================================================
2158 //function : SplitEdge
2160 //=======================================================================
2162 Standard_Boolean ShapeFix_Face::SplitEdge(const Handle(ShapeExtend_WireData)& sewd,
2163 const Standard_Integer num,
2164 const Standard_Real param1,
2165 const Standard_Real param2,
2166 const TopoDS_Vertex& vert,
2167 const Standard_Real preci,
2168 ShapeFix_DataMapOfShapeBox2d& boxes)
2170 TopoDS_Edge edge = sewd->Edge(num);
2171 TopoDS_Edge newE1, newE2;
2172 ShapeFix_SplitTool aTool;
2173 if(aTool.SplitEdge(edge,param1,param2,vert,myFace,newE1,newE2,preci,0.01*preci)) {
2175 Handle(ShapeExtend_WireData) wd = new ShapeExtend_WireData;
2178 if(!Context().IsNull()) Context()->Replace( edge, wd->Wire() );
2179 for (TopExp_Explorer exp ( wd->Wire(), TopAbs_EDGE ); exp.More(); exp.Next() ) {
2180 TopoDS_Edge E = TopoDS::Edge ( exp.Current() );
2181 BRepTools::Update(E);
2184 // change sewd and boxes
2185 sewd->Set(newE1,num);
2186 if(num==sewd->NbEdges())
2189 sewd->Add(newE2,num+1);
2193 const Handle(Geom_Surface)& S = BRep_Tool::Surface(myFace,L);
2194 Handle(Geom2d_Curve) c2d;
2195 Standard_Real cf,cl;
2196 ShapeAnalysis_Edge sae;
2197 if(sae.PCurve(newE1,S,L,c2d,cf,cl,Standard_False)) {
2199 Geom2dAdaptor_Curve gac;
2200 Standard_Real aFirst = c2d->FirstParameter();
2201 Standard_Real aLast = c2d->LastParameter();
2202 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2203 && (cf < aFirst || cl > aLast)) {
2204 //pdn avoiding problems with segment in Bnd_Box
2208 gac.Load(c2d,cf,cl);
2209 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2210 boxes.Bind(newE1,box);
2212 if(sae.PCurve(newE2,S,L,c2d,cf,cl,Standard_False)) {
2214 Geom2dAdaptor_Curve gac;
2215 Standard_Real aFirst = c2d->FirstParameter();
2216 Standard_Real aLast = c2d->LastParameter();
2217 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2218 && (cf < aFirst || cl > aLast)) {
2219 //pdn avoiding problems with segment in Bnd_Box
2223 gac.Load(c2d,cf,cl);
2224 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2225 boxes.Bind(newE2,box);
2227 return Standard_True;
2229 return Standard_False;
2233 //=======================================================================
2234 //function : FixIntersectingWires
2236 //=======================================================================
2238 Standard_Boolean ShapeFix_Face::FixIntersectingWires()
2240 ShapeFix_IntersectionTool ITool(Context(),Precision(),MaxTolerance());
2241 return ITool.FixIntersectingWires(myFace);
2245 //=======================================================================
2246 //function : FixWiresTwoCoincEdges
2248 //=======================================================================
2250 Standard_Boolean ShapeFix_Face::FixWiresTwoCoincEdges()
2252 if ( ! Context().IsNull() ) {
2253 TopoDS_Shape S = Context()->Apply ( myFace );
2254 myFace = TopoDS::Face ( S );
2257 TopAbs_Orientation ori = myFace.Orientation();
2258 TopoDS_Shape emptyCopied = myFace.EmptyCopied();
2259 TopoDS_Face face = TopoDS::Face (emptyCopied);
2260 face.Orientation(TopAbs_FORWARD);
2261 Standard_Integer nbWires = 0;
2264 for (TopoDS_Iterator it (myFace, Standard_False); it.More(); it.Next()) {
2265 if(it.Value().ShapeType() != TopAbs_WIRE ||
2266 (it.Value().Orientation() != TopAbs_FORWARD && it.Value().Orientation() != TopAbs_REVERSED)) {
2271 if(nbWires<2) return Standard_False;
2272 Standard_Boolean isFixed = Standard_False;
2273 for (TopoDS_Iterator wi (myFace, Standard_False); wi.More(); wi.Next()) {
2274 if(wi.Value().ShapeType() != TopAbs_WIRE ||
2275 (wi.Value().Orientation() != TopAbs_FORWARD && wi.Value().Orientation() != TopAbs_REVERSED)) {
2276 B.Add(face,wi.Value());
2279 TopoDS_Wire wire = TopoDS::Wire ( wi.Value() );
2280 Handle(ShapeExtend_WireData) sewd = new ShapeExtend_WireData(wire);
2281 if(sewd->NbEdges()==2) {
2282 TopoDS_Edge E1 = sewd->Edge(1);
2283 TopoDS_Edge E2 = sewd->Edge(2);
2284 E1.Orientation(TopAbs_FORWARD);
2285 E2.Orientation(TopAbs_FORWARD);
2289 else isFixed = Standard_True;
2296 face.Orientation(ori);
2297 if ( ! Context().IsNull() ) Context()->Replace ( myFace, face );
2305 //=======================================================================
2306 //function : FixSplitFace
2308 //=======================================================================
2310 Standard_Boolean ShapeFix_Face::FixSplitFace(const TopTools_DataMapOfShapeListOfShape &MapWires)
2313 TopTools_SequenceOfShape faces;
2314 TopoDS_Shape S = myFace;
2315 if ( ! Context().IsNull() )
2316 S = Context()->Apply ( myFace );
2317 Standard_Integer NbWires=0, NbWiresNew=0, NbEdges;
2318 for(TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
2319 const TopoDS_Shape& aShape = iter.Value();
2320 if(aShape.ShapeType() != TopAbs_WIRE ||
2321 (aShape.Orientation() != TopAbs_FORWARD && aShape.Orientation() != TopAbs_REVERSED))
2323 TopoDS_Wire wire = TopoDS::Wire ( aShape );
2325 if(MapWires.IsBound(wire)) {
2326 // if wire not closed --> stop split and return false
2327 Handle(ShapeExtend_WireData) sewd = new ShapeExtend_WireData(wire);
2328 NbEdges = sewd->NbEdges();
2333 TopoDS_Edge E1 = sewd->Edge(1);
2334 TopoDS_Edge E2 = sewd->Edge(NbEdges);
2335 TopoDS_Vertex V1,V2;
2336 ShapeAnalysis_Edge sae;
2337 V1=sae.FirstVertex(E1);
2338 V2=sae.LastVertex(E2);
2339 if(!V1.IsSame(V2)) {
2340 cout<<"wire not closed --> stop split"<<endl;
2341 return Standard_False;
2344 TopoDS_Shape emptyCopied = S.EmptyCopied();
2345 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
2346 tmpFace.Orientation ( TopAbs_FORWARD );
2347 B.Add(tmpFace,wire);
2349 const TopTools_ListOfShape& IntWires = MapWires.Find(wire);
2350 TopTools_ListIteratorOfListOfShape liter(IntWires);
2351 for( ; liter.More(); liter.Next()) {
2352 TopoDS_Shape aShape = tmpFace.EmptyCopied();
2353 TopoDS_Face aFace = TopoDS::Face ( aShape );
2354 aFace.Orientation ( TopAbs_FORWARD );
2355 B.Add (aFace,liter.Value());
2356 BRepTopAdaptor_FClass2d clas (aFace,::Precision::PConfusion());
2357 TopAbs_State staout = clas.PerformInfinitePoint();
2358 if (staout == TopAbs_IN)
2359 B.Add(tmpFace,liter.Value());
2361 B.Add(tmpFace,liter.Value().Reversed());
2364 if(!myFwd) tmpFace.Orientation(TopAbs_REVERSED);
2365 faces.Append(tmpFace);
2369 if(NbWires!=NbWiresNew) return Standard_False;
2371 if(faces.Length()>1) {
2372 TopoDS_Compound Comp;
2373 B.MakeCompound(Comp);
2374 for(Standard_Integer i=1; i<=faces.Length(); i++ )
2375 B.Add(Comp,faces(i));
2377 Context()->Replace ( myFace, myResult );
2378 for (TopExp_Explorer exp ( myResult, TopAbs_FACE ); exp.More(); exp.Next() ) {
2379 myFace = TopoDS::Face ( exp.Current() );
2380 BRepTools::Update(myFace);
2382 return Standard_True;
2385 return Standard_False;
2388 //=======================================================================
2389 //function : IsPeriodicConicalLoop
2390 //purpose : Checks whether the passed wire makes up a periodic loop on
2391 // passed conical surface
2392 //=======================================================================
2394 static Standard_Boolean IsPeriodicConicalLoop(const Handle(Geom_ConicalSurface)& theSurf,
2395 const TopoDS_Wire& theWire,
2396 const Standard_Real theTolerance,
2397 Standard_Real& theMinU,
2398 Standard_Real& theMaxU,
2399 Standard_Real& theMinV,
2400 Standard_Real& theMaxV,
2401 Standard_Boolean& isUDecrease)
2403 if ( theSurf.IsNull() )
2404 return Standard_False;
2406 ShapeAnalysis_Edge aSAE;
2407 TopLoc_Location aLoc;
2409 Standard_Real aCumulDeltaU = 0.0, aCumulDeltaUAbs = 0.0;
2410 Standard_Real aMinU = RealLast();
2411 Standard_Real aMinV = aMinU;
2412 Standard_Real aMaxU = -aMinU;
2413 Standard_Real aMaxV = aMaxU;
2415 // Iterate over the edges to check whether the wire is periodic on conical surface
2416 TopoDS_Iterator aWireIter(theWire, Standard_False);
2417 for ( ; aWireIter.More(); aWireIter.Next() )
2419 const TopoDS_Edge& aCurrentEdge = TopoDS::Edge(aWireIter.Value());
2420 Handle(Geom2d_Curve) aC2d;
2421 Standard_Real aPFirst, aPLast;
2423 aSAE.PCurve(aCurrentEdge, theSurf, aLoc, aC2d, aPFirst, aPLast, Standard_True);
2425 if ( aC2d.IsNull() )
2426 return Standard_False;
2428 gp_Pnt2d aUVFirst = aC2d->Value(aPFirst),
2429 aUVLast = aC2d->Value(aPLast);
2431 Standard_Real aUFirst = aUVFirst.X(), aULast = aUVLast.X();
2432 Standard_Real aVFirst = aUVFirst.Y(), aVLast = aUVLast.Y();
2434 Standard_Real aCurMaxU = Max(aUFirst, aULast),
2435 aCurMinU = Min(aUFirst, aULast);
2436 Standard_Real aCurMaxV = Max(aVFirst, aVLast),
2437 aCurMinV = Min(aVFirst, aVLast);
2439 if ( aCurMinU < aMinU )
2441 if ( aCurMaxU > aMaxU )
2443 if ( aCurMinV < aMinV )
2445 if ( aCurMaxV > aMaxV )
2448 Standard_Real aDeltaU = aULast - aUFirst;
2450 aCumulDeltaU += aDeltaU;
2451 aCumulDeltaUAbs += Abs(aDeltaU);
2458 isUDecrease = (aCumulDeltaU < 0 ? Standard_True : Standard_False);
2460 Standard_Boolean is2PIDelta = Abs(aCumulDeltaUAbs - 2*M_PI) <= theTolerance;
2461 Standard_Boolean isAroundApex = Abs(theMaxU - theMinU) > 2*M_PI - theTolerance;
2463 return is2PIDelta && isAroundApex;
2466 //=======================================================================
2467 //function : FixPeriodicDegenerated
2469 //=======================================================================
2471 Standard_Boolean ShapeFix_Face::FixPeriodicDegenerated()
2473 /* =====================
2474 * Prepare fix routine
2475 * ===================== */
2477 if ( !Context().IsNull() )
2479 TopoDS_Shape aSh = Context()->Apply(myFace);
2480 myFace = TopoDS::Face(aSh);
2483 /* ================================================
2484 * Check if fix can be applied on the passed face
2485 * ================================================ */
2487 // Collect all wires owned by the face
2488 TopTools_SequenceOfShape aWireSeq;
2489 for ( TopoDS_Iterator aWireIt(myFace, Standard_False); aWireIt.More(); aWireIt.Next() )
2491 const TopoDS_Shape& aSubSh = aWireIt.Value();
2492 if ( aSubSh.ShapeType() != TopAbs_WIRE || ( aSubSh.Orientation() != TopAbs_FORWARD &&
2493 aSubSh.Orientation() != TopAbs_REVERSED ) )
2496 aWireSeq.Append( aWireIt.Value() );
2499 // Get number of wires and surface
2500 Standard_Integer aNbWires = aWireSeq.Length();
2501 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(myFace);
2503 // Only single wires on conical surfaces are checked
2504 if ( aNbWires != 1 || aSurface.IsNull() ||
2505 aSurface->DynamicType() != STANDARD_TYPE(Geom_ConicalSurface) )
2506 return Standard_False;
2508 // Get the single wire
2509 TopoDS_Wire aSoleWire = TopoDS::Wire( aWireSeq.Value(1) );
2511 // Check whether this wire is belting the conical surface by period
2512 Handle(Geom_ConicalSurface) aConeSurf = Handle(Geom_ConicalSurface)::DownCast(aSurface);
2513 Standard_Real aMinLoopU = 0.0, aMaxLoopU = 0.0, aMinLoopV = 0.0, aMaxLoopV = 0.0;
2514 Standard_Boolean isUDecrease = Standard_False;
2516 Standard_Boolean isConicLoop = IsPeriodicConicalLoop(aConeSurf, aSoleWire, Precision(),
2517 aMinLoopU, aMaxLoopU,
2518 aMinLoopV, aMaxLoopV,
2522 return Standard_False;
2526 * =============== */
2528 // Get base circle of the conical surface (the circle it was built from)
2529 Handle(Geom_Curve) aConeBaseCrv = aConeSurf->VIso(0.0);
2530 Handle(Geom_Circle) aConeBaseCirc = Handle(Geom_Circle)::DownCast(aConeBaseCrv);
2532 // Retrieve conical props
2533 Standard_Real aConeBaseR = aConeBaseCirc->Radius();
2534 Standard_Real aSemiAngle = aConeSurf->SemiAngle();
2536 if ( fabs(aSemiAngle) <= Precision::Confusion() )
2537 return Standard_False; // Bad surface
2539 // Find the V parameter of the apex
2540 Standard_Real aConeBaseH = aConeBaseR / Sin(aSemiAngle);
2541 Standard_Real anApexV = -aConeBaseH;
2544 TopoDS_Vertex anApex = BRepBuilderAPI_MakeVertex( aConeSurf->Apex() );
2546 // ====================================
2547 // Build degenerated edge in the apex
2548 // ====================================
2550 TopoDS_Edge anApexEdge;
2551 BRep_Builder aBuilder;
2552 aBuilder.MakeEdge(anApexEdge);
2554 // Check if positional relationship between the initial wire and apex
2555 // line in 2D is going to be consistent
2556 if ( fabs(anApexV - aMinLoopV) <= Precision() ||
2557 fabs(anApexV - aMaxLoopV) <= Precision() ||
2558 ( anApexV < aMaxLoopV && anApexV > aMinLoopV ) )
2559 return Standard_False;
2561 Handle(Geom2d_Line) anApexCurve2d;
2563 // Apex curve below the wire
2564 if ( anApexV < aMinLoopV )
2566 anApexCurve2d = new Geom2d_Line( gp_Pnt2d(aMinLoopU, anApexV), gp_Dir2d(1, 0) );
2568 aSoleWire.Reverse();
2571 // Apex curve above the wire
2572 if ( anApexV > aMaxLoopV )
2574 anApexCurve2d = new Geom2d_Line( gp_Pnt2d(aMaxLoopU, anApexV), gp_Dir2d(-1, 0) );
2576 aSoleWire.Reverse();
2579 // Create degenerated edge & wire for apex
2580 aBuilder.UpdateEdge( anApexEdge, anApexCurve2d, myFace, Precision() );
2581 aBuilder.Add( anApexEdge, anApex );
2582 aBuilder.Add( anApexEdge, anApex.Reversed() );
2583 aBuilder.Degenerated(anApexEdge, Standard_True);
2584 aBuilder.Range( anApexEdge, 0, fabs(aMaxLoopU - aMinLoopU) );
2585 TopoDS_Wire anApexWire = BRepBuilderAPI_MakeWire(anApexEdge);
2587 // ===============================================================
2588 // Finalize the fix building new face and setting up the results
2589 // ===============================================================
2591 // Collect the resulting set of wires
2592 TopTools_SequenceOfShape aNewWireSeq;
2593 aNewWireSeq.Append(aSoleWire);
2594 aNewWireSeq.Append(anApexWire);
2596 // Assemble new face
2597 TopoDS_Face aNewFace = TopoDS::Face( myFace.EmptyCopied() );
2598 aNewFace.Orientation(TopAbs_FORWARD);
2599 BRep_Builder aFaceBuilder;
2600 for ( Standard_Integer i = 1; i <= aNewWireSeq.Length(); i++ )
2602 TopoDS_Wire aNewWire = TopoDS::Wire( aNewWireSeq.Value(i) );
2603 aFaceBuilder.Add(aNewFace, aNewWire);
2605 aNewFace.Orientation( myFace.Orientation() );
2607 // Adjust the resulting state of the healing tool
2608 myResult = aNewFace;
2609 Context()->Replace(myFace, myResult);
2611 return Standard_True;