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0025266: Debug statements in the source are getting flushed on to the console
[occt.git] / src / ShapeFix / ShapeFix_Face.cxx
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973c2be1 1// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 2//
973c2be1 3// This file is part of Open CASCADE Technology software library.
b311480e 4//
d5f74e42 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
973c2be1 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.
b311480e 10//
973c2be1 11// Alternatively, this file may be used under the terms of Open CASCADE
12// commercial license or contractual agreement.
b311480e 13
7fd59977 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)
30
31#include <ShapeFix_Face.ixx>
32
33#include <Standard_Failure.hxx>
34#include <Standard_ErrorHandler.hxx>
35
36#include <Precision.hxx>
37
38#include <Geom2d_Curve.hxx>
39#include <Geom2d_Line.hxx>
fdabc211 40#include <Geom2dAdaptor_Curve.hxx>
7fd59977 41#include <Geom_Curve.hxx>
42#include <Geom_BSplineSurface.hxx>
43#include <GeomAdaptor_HSurface.hxx>
44
45#include <TopoDS.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>
53
54#include <BRep_Tool.hxx>
55#include <BRep_Builder.hxx>
56#include <BRepTopAdaptor_FClass2d.hxx>
57#include <BRepTools.hxx>
58#include <BRepBuilderAPI_MakeFace.hxx>
84dc990a
S		 59#include <BRepBuilderAPI_MakeVertex.hxx>
60#include <BRepBuilderAPI_MakeWire.hxx>
7fd59977 61
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>
84dc990a 70#include <Geom_Circle.hxx>
7fd59977 71#include <Geom_SphericalSurface.hxx>
72#include <Geom_RectangularTrimmedSurface.hxx>
84dc990a 73#include <Geom_ConicalSurface.hxx>
7fd59977 74#include <ShapeAnalysis_Wire.hxx>
75#include <ShapeAnalysis_Surface.hxx>
76
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>
87#include <TopoDS.hxx>
88#include <TopExp.hxx>
89
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>
101
102#include <ShapeFix_IntersectionTool.hxx>
103#include <ShapeFix_SplitTool.hxx>
104#include <TColStd_MapOfInteger.hxx>
105#include <TopTools_DataMapOfShapeShape.hxx>
1ee621b6 106#include <NCollection_Array1.hxx>
7fd59977 107
108#ifdef DEB
109#define DEBUG
110#endif
111
46aed280 112static Standard_Boolean IsSurfaceUVInfinite(const Handle(Geom_Surface)& theSurf)
113{
114 Standard_Real UMin,UMax,VMin,VMax;
115 theSurf->Bounds(UMin,UMax,VMin,VMax);
116
117 return (Precision::IsInfinite(UMin) ||
118 Precision::IsInfinite(UMax) ||
119 Precision::IsInfinite(VMin) ||
120 Precision::IsInfinite(VMax) );
121}
122
123static Standard_Boolean IsSurfaceUVPeriodic(const Handle(Geom_Surface)& theSurf)
124{
125 return theSurf->IsUPeriodic() && theSurf->IsVPeriodic();
126}
127
7fd59977 128//=======================================================================
129//function : ShapeFix_Face
130//purpose :
131//=======================================================================
132
133ShapeFix_Face::ShapeFix_Face()
134{
135 myFwd = Standard_True;
136 myStatus = 0;
137 myFixWire = new ShapeFix_Wire;
138 ClearModes();
139}
140
141//=======================================================================
142//function : ShapeFix_Face
143//purpose :
144//=======================================================================
145
146ShapeFix_Face::ShapeFix_Face(const TopoDS_Face &face)
147{
148 myFwd = Standard_True;
149 myStatus = 0;
150 myFixWire = new ShapeFix_Wire;
151 ClearModes();
152 Init( face );
153}
154
155//=======================================================================
156//function : ClearModes
157//purpose :
158//=======================================================================
159
160void ShapeFix_Face::ClearModes()
161{
84dc990a
S		 162 myFixWireMode = -1;
163 myFixOrientationMode = -1;
164 myFixAddNaturalBoundMode = -1;
165 myFixMissingSeamMode = -1;
166 myFixSmallAreaWireMode = -1;
7fd59977 167 myFixIntersectingWiresMode = -1;
84dc990a
S		 168 myFixLoopWiresMode = -1;
169 myFixSplitFaceMode = -1;
170 myAutoCorrectPrecisionMode = 1;
171 myFixPeriodicDegenerated = -1;
7fd59977 172}
173
174//=======================================================================
175//function : SetMsgRegistrator
176//purpose :
177//=======================================================================
178
179void ShapeFix_Face::SetMsgRegistrator(const Handle(ShapeExtend_BasicMsgRegistrator)& msgreg)
180{
181 ShapeFix_Root::SetMsgRegistrator ( msgreg );
182 myFixWire->SetMsgRegistrator ( msgreg );
183}
184
185//=======================================================================
186//function : SetPrecision
187//purpose :
188//=======================================================================
189
190void ShapeFix_Face::SetPrecision (const Standard_Real preci)
191{
192 ShapeFix_Root::SetPrecision ( preci );
193 myFixWire->SetPrecision ( preci );
194}
195
196//=======================================================================
197//function : SetMinTolerance
198//purpose :
199//=======================================================================
200
201void ShapeFix_Face::SetMinTolerance (const Standard_Real mintol)
202{
203 ShapeFix_Root::SetMinTolerance ( mintol );
204 myFixWire->SetMinTolerance ( mintol );
205}
206
207//=======================================================================
208//function : SetMaxTolerance
209//purpose :
210//=======================================================================
211
212void ShapeFix_Face::SetMaxTolerance (const Standard_Real maxtol)
213{
214 ShapeFix_Root::SetMaxTolerance ( maxtol );
215 myFixWire->SetMaxTolerance ( maxtol );
216}
217
218//=======================================================================
219//function : Init
220//purpose :
221//=======================================================================
222
223void ShapeFix_Face::Init (const Handle(Geom_Surface)& surf,
224 const Standard_Real preci, const Standard_Boolean fwd)
225{
226 myStatus = 0;
227 Handle(ShapeAnalysis_Surface) sas = new ShapeAnalysis_Surface ( surf );
228 Init ( sas, preci, fwd );
229}
230
231//=======================================================================
232//function : Init
233//purpose :
234//=======================================================================
235
236void ShapeFix_Face::Init (const Handle(ShapeAnalysis_Surface)& surf,
237 const Standard_Real preci, const Standard_Boolean fwd)
238{
239 myStatus = 0;
240 mySurf = surf;
241 SetPrecision ( preci );
242 BRep_Builder B;
243 B.MakeFace ( myFace, mySurf->Surface(), ::Precision::Confusion() );
244 myShape = myFace;
245 myFwd = fwd;
246 if ( !fwd ) myFace.Orientation(TopAbs_REVERSED);
247}
248
249//=======================================================================
250//function : Init
251//purpose :
252//=======================================================================
253
254void ShapeFix_Face::Init (const TopoDS_Face& face)
255{
256 myStatus = 0;
257 mySurf = new ShapeAnalysis_Surface ( BRep_Tool::Surface (face) );
258 myFwd = ( face.Orientation() != TopAbs_REVERSED );
259 myFace = face;
260 myShape = myFace;
261// myFace = TopoDS::Face(face.EmptyCopied());
262// for (TopoDS_Iterator ws (face,Standard_False); ws.More(); ws.Next())
263// Add (TopoDS::Wire (ws.Value()) );
264}
265
266//=======================================================================
267//function : Add
268//purpose :
269//=======================================================================
270
271void ShapeFix_Face::Add (const TopoDS_Wire& wire)
272{
273 if ( wire.IsNull() ) return;
274 BRep_Builder B;
275 //szv#4:S4163:12Mar99 SGI warns
276 TopoDS_Shape fc = myFace.Oriented(TopAbs_FORWARD); //:l2 abv 10 Jan 99: Oriented()
277 B.Add ( fc, wire );
278}
279
280
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//=======================================================================
fdabc211 286static Standard_Boolean SplitWire(const TopoDS_Face &face, const TopoDS_Wire& wire,
7fd59977 287 TopTools_SequenceOfShape& aResWires)
288{
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);
296 UsedEdges.Add(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;
301 sewd1->Add(E1);
302 Standard_Boolean IsConnectedEdge = Standard_True;
303 for(j=2; j<=sewd->NbEdges() && IsConnectedEdge; j++) {
fdabc211 304 TopoDS_Edge E2;
7fd59977 305 for(k=2; k<=sewd->NbEdges(); k++) {
306 if(UsedEdges.Contains(k)) continue;
fdabc211 307 E2 = sewd->Edge(k);
7fd59977 308 TopoDS_Vertex V21 = sae.FirstVertex(E2);
309 TopoDS_Vertex V22 = sae.LastVertex(E2);
310 if( sae.FirstVertex(E2).IsSame(V1) ) {
311 sewd1->Add(E2);
312 UsedEdges.Add(k);
313 V1 = sae.LastVertex(E2);
314 break;
315 }
316 }
7fd59977 317 if(k>sewd->NbEdges()) {
318 IsConnectedEdge = Standard_False;
319 break;
320 }
fdabc211 321 if(V1.IsSame(V0)) {
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);
326 gp_Pnt2d v0,v1;
327 if (E1.Orientation() == TopAbs_REVERSED)
328 a1 = b1;
329 if (E2.Orientation() == TopAbs_REVERSED)
330 b2 = a2;
331 curve1->D0(a1,v0);
332 curve2->D0(b2,v1);
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());
339 break;
340 }
341 }
7fd59977 342 }
343 if(!IsConnectedEdge) {
344 // create new notclosed wire
345 aResWires.Append(sewd1->Wire());
346 }
347 if(UsedEdges.Extent()==sewd->NbEdges()) break;
348 }
349
350 if(aResWires.Length()>1) {
63c629aa 351#ifdef SHAPEFIX_DEB
7fd59977 352 cout<<"Wire was splitted on "<<aResWires.Length()<<" wires"<< endl;
353#endif
354 }
355
356 return Standard_True;
357}
358
359
360//=======================================================================
361//function : Perform
362//purpose :
363//=======================================================================
364
365Standard_Boolean ShapeFix_Face::Perform()
366{
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;
371
372 BRep_Builder B;
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;
377
378 //gka fix in order to avoid lost messages (following OCC21771)
379 TopTools_DataMapOfShapeShape aMapReorderedWires;
380
381 Standard_Real aSavPreci = Precision();
382 if ( NeedFix ( myFixWireMode ) ) {
383 theAdvFixWire->SetFace ( myFace );
384
385 Standard_Integer usFixLackingMode = theAdvFixWire->FixLackingMode();
0d4e3501 386 //Standard_Integer usFixNotchedEdgesMode = theAdvFixWire->FixNotchedEdgesMode(); // CR0024983
7fd59977 387 Standard_Integer usFixSelfIntersectionMode = theAdvFixWire->FixSelfIntersectionMode();
388 theAdvFixWire->FixLackingMode() = Standard_False;
0d4e3501 389 //theAdvFixWire->FixNotchedEdgesMode() = Standard_False; // CR0024983
7fd59977 390 theAdvFixWire->FixSelfIntersectionMode() = Standard_False;
391
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 );
399
400 /*
401 // skl 14.05.2002 OCC55 + corrected 03.03.2004
402 Standard_Real dPreci = aSavPreci*aSavPreci;
403 dPreci*=4;
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);
409 if(!c3d.IsNull()) {
410 Bnd_Box bb;
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;
418 }
419 }
420 newpreci=sqrt(newpreci)/2.*1.00001;
421 if( aSavPreci > newpreci && newpreci > Precision::Confusion()) {
422 SetPrecision(newpreci);
423 theAdvFixWire->SetPrecision(newpreci);
424 }
425 // end skl 14.05.2002
426 */
427
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);
436 }
437 }
46aed280 438
7fd59977 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() );
443 continue;
444 }
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 );
450 else {
451 fixed = Standard_True;
452 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
453 }
454 continue;
455 }
456 if ( theAdvFixWire->Perform() ) {
457 //fixed = Standard_True;
d3c5411b 458 isfixReorder = (theAdvFixWire->StatusReorder(ShapeExtend_DONE) || isfixReorder);
7fd59977 459 fixed = (theAdvFixWire->StatusSmall(ShapeExtend_DONE) ||
460 theAdvFixWire->StatusConnected(ShapeExtend_DONE) ||
461 theAdvFixWire->StatusEdgeCurves(ShapeExtend_DONE) ||
0d4e3501 462 theAdvFixWire->StatusNotches(ShapeExtend_DONE) || // CR0024983
7fd59977 463 theAdvFixWire->StatusDegenerated(ShapeExtend_DONE) ||
464 theAdvFixWire->StatusClosed(ShapeExtend_DONE));
465 TopoDS_Wire w = theAdvFixWire->Wire();
466 if(fixed) {
467 if ( ! Context().IsNull() ) Context()->Replace ( wire, w );
468 if(theAdvFixWire->NbEdges() == 0) {
469 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
470 continue;
471 }
472 }
473 else if(!wire.IsSame(w))
474 aMapReorderedWires.Bind(wire,w);
475
476 wire = w;
477 }
478 B.Add ( tmpFace, wire );
479 // if ( theAdvFixWire->Status ( ShapeExtend_FAIL ) )
480 // myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
481 }
482
483 theAdvFixWire->FixLackingMode() = usFixLackingMode;
0d4e3501 484 //theAdvFixWire->FixNotchedEdgesMode() = usFixNotchedEdgesMode; // CR0024983
7fd59977 485 theAdvFixWire->FixSelfIntersectionMode() = usFixSelfIntersectionMode;
486 if ( ! myFwd ) tmpFace.Orientation ( TopAbs_REVERSED );
487
488 if ( fixed ) {
489 //if ( ! myFwd ) tmpFace.Orientation ( TopAbs_REVERSED );
490 if ( ! Context().IsNull() ) Context()->Replace ( S, tmpFace );
491 //myFace = tmpFace;
492 isReplaced = Standard_True;
7fd59977 493 }
673693f1 494 if(fixed || isfixReorder) {
7fd59977 495 myFace = tmpFace;
d3c5411b 496 if (!theAdvFixWire->StatusReorder(ShapeExtend_DONE5)) {
497 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
498 }
673693f1 499 }
7fd59977 500 }
501
502 myResult = myFace;
503 TopoDS_Shape savShape = myFace; //gka BUG 6555
84dc990a
S		 504
505 // Specific case for conic surfaces
506 if ( NeedFix(myFixPeriodicDegenerated) )
507 this->FixPeriodicDegenerated();
508
7fd59977 509 // fix missing seam
510 if ( NeedFix ( myFixMissingSeamMode ) ) {
511 if ( FixMissingSeam() ) {
512 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
513 }
514 }
515
516 // cycle by all possible faces coming from FixMissingSeam
46aed280 517 // each face is processed as if it was single
7fd59977 518 TopExp_Explorer exp(myResult,TopAbs_FACE);
519 for ( ; exp.More(); exp.Next() ) {
520 myFace = TopoDS::Face ( exp.Current() );
521 Standard_Boolean NeedCheckSplitWire = Standard_False;
522
523 // perform second part of fixes on wires
524 if ( NeedFix ( myFixWireMode ) ) {
525 theAdvFixWire->SetFace ( myFace );
526
527 Standard_Integer usFixSmallMode = theAdvFixWire->FixSmallMode();
528 Standard_Integer usFixConnectedMode = theAdvFixWire->FixConnectedMode();
529 Standard_Integer usFixEdgeCurvesMode =theAdvFixWire->FixEdgeCurvesMode();
530 Standard_Integer usFixDegeneratedMode = theAdvFixWire->FixDegeneratedMode();
531 theAdvFixWire->FixSmallMode() = Standard_False;
532 theAdvFixWire->FixConnectedMode() = Standard_False;
533 theAdvFixWire->FixEdgeCurvesMode() = Standard_False;
534 theAdvFixWire->FixDegeneratedMode() = Standard_False;
535
536 Standard_Boolean fixed = Standard_False;
537 TopoDS_Shape S = myFace;
538 if ( ! Context().IsNull() )
539 S = Context()->Apply ( myFace );
540 TopoDS_Shape emptyCopied = S.EmptyCopied();
541 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
542 tmpFace.Orientation ( TopAbs_FORWARD );
543 for ( TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
544 if(iter.Value().ShapeType() != TopAbs_WIRE) {
545 B.Add ( tmpFace,iter.Value());
546 continue;
547 }
548
549 TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
550 theAdvFixWire->Load ( wire );
551 if(theAdvFixWire->NbEdges() == 0) {
552 if(theAdvFixWire->WireData()->NbNonManifoldEdges())
553 B.Add ( tmpFace, wire );
554 else {
555 fixed = Standard_True;
556 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
557 }
558 continue;
559 }
560 if ( theAdvFixWire->Perform() ) {
561 isfixReorder = theAdvFixWire->StatusReorder(ShapeExtend_DONE);
562 fixed = (theAdvFixWire->StatusLacking(ShapeExtend_DONE) ||
563 theAdvFixWire->StatusSelfIntersection(ShapeExtend_DONE) ||
564 theAdvFixWire->StatusNotches(ShapeExtend_DONE)); //Standard_True;
565 TopoDS_Wire w = theAdvFixWire->Wire();
566 if(fixed) {
567 if ( ! Context().IsNull() ) Context()->Replace ( wire, w );
568
569 }
570 else if(!wire.IsSame(w))
571 aMapReorderedWires.Bind(wire,w);
572
573 wire = w;
574 }
575 if(theAdvFixWire->StatusRemovedSegment())
576 NeedCheckSplitWire = Standard_True;
577
578 //fix for loop of wire
579 TopTools_SequenceOfShape aLoopWires;
580 if(NeedFix ( myFixLoopWiresMode) && FixLoopWire(aLoopWires)) {
999d2599
D		 581 if (aLoopWires.Length() > 1)
582 SendWarning ( wire, Message_Msg ( "FixAdvFace.FixLoopWire.MSG0" ) );// Wire was splitted on several wires
7fd59977 583 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
584 fixed = Standard_True;
585 Standard_Integer k=1;
586 for( ; k <= aLoopWires.Length(); k++)
587 B.Add (tmpFace,aLoopWires.Value(k));
588 }
589 else
590 B.Add ( tmpFace, wire );
591 }
592
593 theAdvFixWire->FixSmallMode() = usFixSmallMode;
594 theAdvFixWire->FixConnectedMode() = usFixConnectedMode;
595 theAdvFixWire->FixEdgeCurvesMode() = usFixEdgeCurvesMode;
596 theAdvFixWire->FixDegeneratedMode() = usFixDegeneratedMode;
597
598 if ( fixed ) {
599 if ( ! myFwd ) tmpFace.Orientation ( TopAbs_REVERSED );
600 if(!isReplaced && !aInitFace.IsSame(myResult) && ! Context().IsNull()) //gka 06.09.04 BUG 6555
601 Context()->Replace(aInitFace,savShape);
602 if ( ! Context().IsNull() ) Context()->Replace ( S, tmpFace );
603 myFace = tmpFace;
604 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
605 }
606 }
607
608 if(NeedCheckSplitWire) {
609 // try to split wire - it is needed if some segments were removed
610 // in ShapeFix_Wire::FixSelfIntersection()
611 TopoDS_Shape S = myFace;
612 if ( ! Context().IsNull() )
613 S = Context()->Apply ( myFace );
614 TopoDS_Shape emptyCopied = S.EmptyCopied();
615 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
616 tmpFace.Orientation ( TopAbs_FORWARD );
617 TopTools_SequenceOfShape aWires;
618 Standard_Integer nbw=0;
619 for ( TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
620 if(iter.Value().ShapeType() != TopAbs_WIRE) {
621 B.Add (tmpFace,iter.Value());
622 continue;
623 }
56084216 624 if(iter.Value().Orientation() != TopAbs_FORWARD &&
7fd59977 625 iter.Value().Orientation() != TopAbs_REVERSED) {
626 B.Add (tmpFace,TopoDS::Wire(iter.Value()));
627 continue;
628 }
629 nbw++;
630 TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
fdabc211 631 SplitWire(tmpFace,wire,aWires);
7fd59977 632 }
633 if(nbw<aWires.Length()) {
634 for(Standard_Integer iw=1; iw<=aWires.Length(); iw++)
635 B.Add (tmpFace,aWires.Value(iw));
636 if ( ! Context().IsNull() ) Context()->Replace ( S, tmpFace );
637 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
638 myFace = tmpFace;
639 }
640 }
641
642 // fix intersecting wires
643 if(FixWiresTwoCoincEdges())
644 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
645 if ( NeedFix ( myFixIntersectingWiresMode ) ) {
646 if ( FixIntersectingWires() ) {
647 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
648 }
649 }
650
651 // fix orientation
652 TopTools_DataMapOfShapeListOfShape MapWires;
653 MapWires.Clear();
654 if ( NeedFix ( myFixOrientationMode ) ) {
655 if ( FixOrientation(MapWires) )
656 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
657 }
658
659 BRepTools::Update(myFace);
660
661 // fix natural bounds
662 Standard_Boolean NeedSplit = Standard_True;
663 if ( NeedFix ( myFixAddNaturalBoundMode ) ) {
664 if ( FixAddNaturalBound() ) {
665 NeedSplit = Standard_False;
666 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
667 }
668 }
669
670 // split face
671 if ( NeedFix ( myFixSplitFaceMode ) && NeedSplit && MapWires.Extent()>1 ) {
672 if ( FixSplitFace(MapWires) )
673 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
674 }
675
676 }
677
678 //return the original preci
679 SetPrecision(aSavPreci);
46aed280 680 theAdvFixWire->SetPrecision(aSavPreci);
7fd59977 681
682 // cycle by all possible faces coming from FixAddNaturalBound
683 // each face is processed as if it was single
684 for ( exp.Init(myResult,TopAbs_FACE); exp.More(); exp.Next() ) {
685 myFace = TopoDS::Face ( exp.Current() );
686
687 // fix small-area wires
688 if ( NeedFix ( myFixSmallAreaWireMode, Standard_False ) ) {
689 if ( FixSmallAreaWire() )
690 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
691 }
692 }
693
694
695 if ( ! Context().IsNull() ) {
696 if(Status ( ShapeExtend_DONE ) && !isReplaced && !aInitFace.IsSame(savShape))
697 {
698 //gka fix in order to avoid lost messages (following OCC21771)
699 if(aMapReorderedWires.Extent())
700 {
701 TopoDS_Iterator aItW(aInitFace,Standard_False);
702 for( ; aItW.More() ; aItW.Next())
703 {
704 TopoDS_Shape aCurW = aItW.Value();
705 while(aMapReorderedWires.IsBound(aCurW))
706 {
707 TopoDS_Shape aFixW = aMapReorderedWires.Find(aCurW);
708 Context()->Replace(aCurW, aFixW);
709 aCurW = aFixW;
710 }
711 }
712
713 }
714 Context()->Replace(aInitFace, savShape);
715 }
716 myResult = Context()->Apply ( aInitFace ); //gka 06.09.04
717 }
718 else if(!Status ( ShapeExtend_DONE ))
719 myResult = aInitFace;
720
721 return Status ( ShapeExtend_DONE );
722}
723
724//=======================================================================
725//function : Auxiliary functions
726//purpose :
727//=======================================================================
728
729// Shift all pcurves of edges in the given wire on the given face
730// to vector <vec>
731static void Shift2dWire(const TopoDS_Wire w, const TopoDS_Face f,
732 const gp_Vec2d vec,
733 const Handle(ShapeAnalysis_Surface)& mySurf,
734 Standard_Boolean recompute3d = Standard_False)
735{
736 gp_Trsf2d tr2d;
737 tr2d.SetTranslation(vec.XY());
738 ShapeAnalysis_Edge sae;
739 ShapeBuild_Edge sbe;
740 BRep_Builder B;
741 for (TopoDS_Iterator ei (w,Standard_False); ei.More(); ei.Next()){
742 TopoDS_Edge edge = TopoDS::Edge(ei.Value());
743 Handle (Geom2d_Curve) C2d;
744 Standard_Real cf, cl;
745 if ( ! sae.PCurve(edge, f, C2d, cf, cl, Standard_True) ) continue;
746 C2d->Transform(tr2d);
747 if ( recompute3d ) {
748 // recompute 3d curve and vertex
749 sbe.RemoveCurve3d ( edge );
750 sbe.BuildCurve3d ( edge );
751 B.UpdateVertex ( sae.FirstVertex(edge), mySurf->Value(C2d->Value(cf)), 0. );
752 }
753 }
754}
755
756// Cut interval from the sequence of intervals
757static Standard_Boolean CutInterval (TColgp_SequenceOfPnt2d &intervals,
758 const gp_Pnt2d &toAddI,
759 const Standard_Real period)
760{
761 if ( intervals.Length() <=0 ) return Standard_False;
762 for ( Standard_Integer j=0; j <2; j++ ) { // try twice, align to bottom and to top
763 for ( Standard_Integer i=1; i <= intervals.Length(); i++ ) {
764 gp_Pnt2d interval = intervals(i);
765 // ACIS907, OCC921 a054a.sat (face 124)
766 Standard_Real shift = ShapeAnalysis::AdjustByPeriod ( ( j ? toAddI.X() : toAddI.Y() ),
767 0.5*( interval.X() + interval.Y() ),period);
768 gp_Pnt2d toAdd ( toAddI.X() + shift, toAddI.Y() + shift );
769 if ( toAdd.Y() <= interval.X() || toAdd.X() >= interval.Y() ) continue;
770 if ( toAdd.X() > interval.X() ) {
771 if ( toAdd.Y() < interval.Y() ) {
772 intervals.InsertBefore ( i, interval );
773 intervals.ChangeValue(i+1).SetX ( toAdd.Y() ); // i++...
774 }
775 intervals.ChangeValue(i).SetY ( toAdd.X() );
776 }
777 else if ( toAdd.Y() < interval.Y() ) {
778 intervals.ChangeValue(i).SetX ( toAdd.Y() );
779 }
780 else intervals.Remove ( i-- );
781 }
782 }
783 return Standard_True;
784}
785
786// Find middle of the biggest interval
787static Standard_Real FindBestInterval (TColgp_SequenceOfPnt2d &intervals)
788{
789 Standard_Real shift = 0., max = -1.;
790 for ( Standard_Integer i=1; i <= intervals.Length(); i++ ) {
791 gp_Pnt2d interval = intervals(i);
792 if ( interval.Y() - interval.X() <= max ) continue;
793 max = interval.Y() - interval.X();
794 shift = interval.X() + 0.5 * max;
795 }
796 return shift;
797}
798
799//=======================================================================
800//function : FixAddNaturalBound
801//purpose :
802//=======================================================================
803// Detect missing natural bounary on spherical surfaces and add it if
804// necessary
805//pdn 981202: add natural bounds if missing (on sphere only)
806//:abv 28.08.01: rewritten and extended for toruses
807
808Standard_Boolean ShapeFix_Face::FixAddNaturalBound()
809{
810 if ( ! Context().IsNull() ) {
811 TopoDS_Shape S = Context()->Apply ( myFace );
812 myFace = TopoDS::Face ( S );
813 }
814
815 // collect wires in sequence
816 TopTools_SequenceOfShape ws;
817 TopTools_SequenceOfShape vs;
818 TopoDS_Iterator wi (myFace,Standard_False);
819 for ( ; wi.More(); wi.Next()) {
820 if(wi.Value().ShapeType() == TopAbs_WIRE &&
821 (wi.Value().Orientation() == TopAbs_FORWARD || wi.Value().Orientation() == TopAbs_REVERSED))
822 ws.Append (wi.Value());
823 else
824 vs.Append(wi.Value());
825 }
826
46aed280 827 // deal with the case of an empty face: just create a new face by a standard tool
828 if (ws.IsEmpty() && !IsSurfaceUVInfinite (mySurf->Surface()))
829 {
830 BRepBuilderAPI_MakeFace aFaceBuilder (mySurf->Surface(), Precision::Confusion());
831
832 TopoDS_Face aNewFace = aFaceBuilder.Face();
833 aNewFace.Orientation (myFace.Orientation());
834
835 if ( ! Context().IsNull() )
836 Context()->Replace (myFace, aNewFace);
837
838 // taking into account orientation
839 myFace = aNewFace;
7fd59977 840
841 //gka 11.01.99 file PRO7755.stp entity #2018 surface #1895: error BRepLib_MakeFace func IsDegenerated
842 Handle(ShapeFix_Edge) sfe = myFixWire->FixEdgeTool();
843 for (TopExp_Explorer Eed (myFace, TopAbs_EDGE); Eed.More(); Eed.Next()) {
844 TopoDS_Edge edg = TopoDS::Edge (Eed.Current());
845 sfe->FixVertexTolerance(edg);
846 }
847
848// B.UpdateFace (myFace,myPrecision);
999d2599 849 SendWarning ( myFace, Message_Msg ( "FixAdvFace.FixOrientation.MSG0" ) );// Face created with natural bounds
7fd59977 850 BRepTools::Update(myFace);
46aed280 851 myResult = myFace;
7fd59977 852 return Standard_True;
853 }
46aed280 854
855 // check if surface is double-closed and fix is needed
856 if ( !IsSurfaceUVPeriodic (mySurf->Surface()) || ShapeAnalysis::IsOuterBound (myFace) )
7fd59977 857 return Standard_False;
858
859 // Collect informations on free intervals in U and V
860 TColgp_SequenceOfPnt2d intU, intV, centers;
861 Standard_Real SUF, SUL, SVF, SVL;
862 mySurf->Bounds(SUF, SUL, SVF, SVL);
863 intU.Append ( gp_Pnt2d(SUF, SUL) );
864 intV.Append ( gp_Pnt2d(SVF, SVL) );
865 Standard_Integer nb = ws.Length();
866 Standard_Integer i;
867 for ( i=1; i <= nb; i ++) {
868 Standard_Real Umin, Vmin, Umax, Vmax;
869// Bnd_Box2d B;
870 TopoDS_Wire aw = TopoDS::Wire (ws.Value(i));
871 // PTV 01.11.2002 ACIS907, OCC921 begin
872// BRepTools::AddUVBounds(myFace,aw,B);
873// B.Get(Umin, Vmin, Umax, Vmax);
874 TopoDS_Face aWireFace = TopoDS::Face( myFace.EmptyCopied() );
875 BRep_Builder aB;
876 aB.Add( aWireFace, aw );
877 ShapeAnalysis::GetFaceUVBounds(aWireFace, Umin, Umax, Vmin, Vmax);
878 // PTV 01.11.2002 ACIS907, OCC921 end
879 if ( mySurf->IsUClosed() ) CutInterval ( intU, gp_Pnt2d(Umin,Umax), SUL-SUF );
880 if ( mySurf->IsVClosed() ) CutInterval ( intV, gp_Pnt2d(Vmin,Vmax), SVL-SVF );
881 centers.Append ( gp_Pnt2d ( 0.5*(Umin+Umax), 0.5*(Vmin+Vmax) ) );
882 }
883
884 // find best interval and thus compute shift
885 gp_Pnt2d shift(0.,0.);
886 if ( mySurf->IsUClosed() ) shift.SetX ( FindBestInterval ( intU ) );
887 if ( mySurf->IsVClosed() ) shift.SetY ( FindBestInterval ( intV ) );
888
889 // Adjust all other wires to be inside outer one
890 gp_Pnt2d center ( shift.X() + 0.5*(SUL-SUF), shift.Y() + 0.5*(SVL-SVF) );
891 for ( i=1; i <= nb; i++ ) {
892 TopoDS_Wire wire = TopoDS::Wire (ws.Value(i));
893 gp_Pnt2d sh(0.,0.);
894 if ( mySurf->IsUClosed() )
895 sh.SetX ( ShapeAnalysis::AdjustByPeriod ( centers(i).X(), center.X(), SUL-SUF ) );
896 if ( mySurf->IsVClosed() )
897 sh.SetY ( ShapeAnalysis::AdjustByPeriod ( centers(i).Y(), center.Y(), SVL-SVF ) );
898 Shift2dWire ( wire, myFace, sh.XY(), mySurf );
899 }
900
901 // Create naturally bounded surface and add that wire to sequence
902/* variant 1
903 // Create fictive grid and call ComposeShell
904 Handle(Geom_RectangularTrimmedSurface) RTS =
905 new Geom_RectangularTrimmedSurface ( mySurf->Surface(), SUF+shift.X(), SUL+shift.X(),
906 SVF+shift.Y(), SVL+shift.Y() );
907 Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
908 grid->SetValue ( 1, 1, RTS );
909 Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
910 TopLoc_Location L;
911
912 ShapeFix_ComposeShell CompShell;
913 CompShell.Init ( G, L, myFace, ::Precision::Confusion() );
914 CompShell.ClosedMode() = Standard_True;
915 CompShell.NaturalBoundMode() = Standard_True;
916 CompShell.SetContext( Context() );
917 CompShell.SetMaxTolerance(MaxTolerance());
918 CompShell.Perform();
919 TopoDS_Shape res = CompShell.Result();
920
921 Context()->Replace ( myFace, res );
922 for (TopExp_Explorer exp ( res, TopAbs_FACE ); exp.More(); exp.Next() ) {
923 myFace = TopoDS::Face ( exp.Current() );
924 BRepTools::Update(myFace); //:p4
925 }
926 myResult = Context()->Apply ( myResult );
927*/
928/* variant 2 */
929 TopLoc_Location L;
930 Handle(Geom_Surface) surf = BRep_Tool::Surface ( myFace, L );
1c72dff6 931 BRepBuilderAPI_MakeFace mf (surf, Precision::Confusion());
7fd59977 932 TopoDS_Face ftmp = mf.Face();
933 ftmp.Location ( L );
934 for (wi.Initialize (ftmp,Standard_False); wi.More(); wi.Next()) {
935 if(wi.Value().ShapeType() != TopAbs_WIRE)
936 continue;
937 TopoDS_Wire wire = TopoDS::Wire ( wi.Value() );
938 ws.Append ( wire );
939 if ( shift.XY().Modulus() < ::Precision::PConfusion() ) continue;
940 Shift2dWire ( wire, myFace, shift.XY(), mySurf, Standard_True );
941 }
942
943 // Fix possible case on sphere when gap contains degenerated edge
944 // and thus has a common part with natural boundary
945 // Such hole should be merged with boundary
946 if ( mySurf->Adaptor3d()->GetType() == GeomAbs_Sphere &&
947 ws.Length() == nb+1 ) {
948 Handle(ShapeExtend_WireData) bnd =
949 new ShapeExtend_WireData ( TopoDS::Wire ( ws.Last() ) );
950 // code to become separate method FixTouchingWires()
951 for ( i=1; i <= nb; i++ ) {
952 Handle(ShapeExtend_WireData) sbwd =
953 new ShapeExtend_WireData ( TopoDS::Wire ( ws.Value(i) ) );
954 for (Standard_Integer j=1; j <= sbwd->NbEdges(); j++ ) {
955 if ( ! BRep_Tool::Degenerated ( sbwd->Edge(j) ) ) continue;
956 // find corresponding place in boundary
957 ShapeAnalysis_Edge sae;
958 TopoDS_Vertex V = sae.FirstVertex ( sbwd->Edge(j) );
959 Standard_Integer k;
960 for ( k=1; k <= bnd->NbEdges(); k++ ) {
961 if ( ! BRep_Tool::Degenerated ( bnd->Edge(k) ) ) continue;
962 if ( BRepTools::Compare ( V, sae.FirstVertex ( bnd->Edge(k) ) ) ) break;
963 }
964 if ( k > bnd->NbEdges() ) continue;
965 // and insert hole to that place
966 BRep_Builder B;
967 B.Degenerated ( sbwd->Edge(j), Standard_False );
968 B.Degenerated ( bnd->Edge(k), Standard_False );
969 sbwd->SetLast ( j );
970 bnd->Add ( sbwd, k+1 );
971 ws.Remove ( i-- );
972 nb--;
973 myFixWire->SetFace ( myFace );
974 myFixWire->Load ( bnd );
975 myFixWire->FixConnected();
976 myFixWire->FixDegenerated();
977 ws.SetValue ( ws.Length(), bnd->Wire() );
978 break;
979 }
980 }
981 }
982
983 // Create resulting face
984 BRep_Builder B;
985 TopoDS_Shape S = myFace.EmptyCopied();
986 S.Orientation ( TopAbs_FORWARD );
987 for ( i = 1; i <= ws.Length(); i++ ) B.Add ( S, ws.Value(i) );
988 for ( i = 1; i <= vs.Length(); i++ ) B.Add ( S, vs.Value(i) );
989 if ( ! myFwd ) S.Orientation (TopAbs_REVERSED);
990 if ( ! Context().IsNull() ) Context()->Replace ( myFace, S );
991 myFace = TopoDS::Face ( S );
992 BRepTools::Update(myFace);
993
994/**/
63c629aa 995#ifdef SHAPEFIX_DEB
7fd59977 996 cout<<"Natural bound on sphere or torus with holes added"<<endl; // mise au point !
997#endif
999d2599 998 SendWarning ( myFace, Message_Msg ( "FixAdvFace.FixOrientation.MSG0" ) );// Face created with natural bounds
7fd59977 999 return Standard_True;
1000}
1001
1002
1003//=======================================================================
1004//function : FixOrientation
1005//purpose :
1006//=======================================================================
1007
1008Standard_Boolean ShapeFix_Face::FixOrientation()
1009{
1010 TopTools_DataMapOfShapeListOfShape MapWires;
1011 MapWires.Clear();
1012 return FixOrientation(MapWires);
1013}
1014
1015
1016//=======================================================================
1017//function : FixOrientation
1018//purpose :
1019//=======================================================================
1020
1021Standard_Boolean ShapeFix_Face::FixOrientation(TopTools_DataMapOfShapeListOfShape &MapWires)
1022{
1023 Standard_Boolean done = Standard_False;
1024
1025 if ( ! Context().IsNull() ) {
1026 TopoDS_Shape S = Context()->Apply ( myFace );
1027 myFace = TopoDS::Face ( S );
1028 }
1029 TopTools_SequenceOfShape ws;
1030 TopTools_SequenceOfShape allSubShapes;
1031 // smh: BUC60810 : protection against very small wires (one-edge, null-length)
1032 TopTools_SequenceOfShape VerySmallWires;
1033 for ( TopoDS_Iterator wi (myFace,Standard_False); wi.More(); wi.Next()) {
1034 if(wi.Value().ShapeType() == TopAbs_VERTEX ||
1035 (wi.Value().Orientation() != TopAbs_FORWARD &&
1036 wi.Value().Orientation() != TopAbs_REVERSED)) {
1037 allSubShapes.Append (wi.Value());
1038 //ws.Append (wi.Value());
1039 continue;
1040 }
1041
46aed280 1042 TopoDS_Iterator ei (wi.Value(),Standard_False);
7fd59977 1043 TopoDS_Edge anEdge;
1044 Standard_Real length = RealLast();
1045 if ( ei.More() ) {
1046 anEdge = TopoDS::Edge(ei.Value());
1047 ei.Next();
1048 if ( ! ei.More() ) {
1049 length = 0;
1050 Standard_Real First, Last;
1051 Handle(Geom_Curve) c3d;
1052 ShapeAnalysis_Edge sae;
1053 if ( sae.Curve3d(anEdge,c3d,First,Last) ) {
1054 gp_Pnt pntIni = c3d->Value(First);
1055 gp_XYZ prev;
1056 prev = pntIni.XYZ();
1057 Standard_Integer NbControl = 10;
1058 for ( Standard_Integer j = 1; j < NbControl; j++) {
1059 Standard_Real prm = ((NbControl-1-j)*First + j*Last)/(NbControl-1);
1060 gp_Pnt pntCurr = c3d->Value(prm);
1061 gp_XYZ curr = pntCurr.XYZ();
1062 gp_XYZ delta = curr - prev;
1063 length += delta.Modulus();
1064 prev = curr;
1065 }
1066 }
1067 }
1068 }
1069 else length = 0;
1070 if (length > ::Precision::Confusion()) {
1071 ws.Append (wi.Value());
1072 allSubShapes.Append (wi.Value());
1073 }
1074 else VerySmallWires.Append (wi.Value());
1075 }
1076 if ( VerySmallWires.Length() >0 ) done = Standard_True;
1077
1078 Standard_Integer nb = ws.Length();
1079 Standard_Integer nbAll = allSubShapes.Length();
1080 BRep_Builder B;
1081
1082 // if no wires, just do nothing
1083 if ( nb <= 0) return Standard_False;
1084 Standard_Integer nbInternal=0;
1085 Standard_Boolean isAddNaturalBounds = (NeedFix (myFixAddNaturalBoundMode) &&
46aed280 1086 IsSurfaceUVPeriodic (mySurf->Surface()));
7fd59977 1087 TColStd_SequenceOfInteger aSeqReversed;
1088 // if wire is only one, check its orientation
1089 if ( nb == 1 ) {
1090 // skl 12.04.2002 for cases with nbwires>1 (VerySmallWires>1)
1091 // make face with only one wire (ws.Value(1))
1092 TopoDS_Shape dummy = myFace.EmptyCopied();
1093 TopoDS_Face af = TopoDS::Face ( dummy );
1094 af.Orientation ( TopAbs_FORWARD );
1095 B.Add (af,ws.Value(1));
46aed280 1096 if ((myFixAddNaturalBoundMode != Standard_True || //: abv 29.08.01: Spatial_firex_lofting.sat
1097 !IsSurfaceUVPeriodic (mySurf->Surface()) ) &&
1098 !ShapeAnalysis::IsOuterBound (af) )
1099 {
7fd59977 1100 Handle(ShapeExtend_WireData) sbdw =
1101 new ShapeExtend_WireData (TopoDS::Wire(ws.Value(1)));
1102 sbdw->Reverse ( myFace );
1103 ws.SetValue ( 1, sbdw->Wire() );
999d2599 1104 SendWarning ( sbdw->Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
7fd59977 1105 done = Standard_True;
63c629aa 1106#ifdef SHAPEFIX_DEB
7fd59977 1107 cout<<"Wire reversed"<<endl; // mise au point !
1108#endif
1109 }
1110 }
1111 // in case of several wires, perform complex analysis
1112// ATTENTION ESSAI
1113// Plusieurs wires : orientations relatives
1114// Chaque wire doit "contenir" tous les autres
1115// Evidemment, en cas de peau de leopard, il peut y avoir probleme
1116 else {
1117// On prend chaque wire (NB: pcurves presentes !)
1118// En principe on devrait rejeter les wires non fermes (cf couture manque ?)
1119// On le classe par rapport aux autres, qui doivent tous etre, soit IN soit
1120// OUT. Sinon il y a imbrication -> SDB. Si IN, OK, si OUT on inverse
1121// (nb : ici pas myClos donc pas de pb de couture)
1122// Si au moins une inversion, il faut refaire la face (cf myRebil)
1123
1124 //:94 abv 30 Jan 98: calculate parametric precision
1125
1126// GeomAdaptor_Surface& Ads = mySurf->Adaptor3d()->ChangeSurface();
1127// Standard_Real toluv = Min ( Ads.UResolution(Precision()), Ads.VResolution(Precision()) );
1128 Standard_Boolean uclosed = mySurf->IsUClosed();
1129 Standard_Boolean vclosed = mySurf->IsVClosed();
1130 Standard_Real SUF, SUL, SVF, SVL;
1131 mySurf->Bounds(SUF, SUL, SVF, SVL);
1ee621b6 1132 Standard_Real uRange = SUL - SUF;
1133 Standard_Real vRange = SVL - SVF;
7fd59977 1134
1135 TopTools_DataMapOfShapeListOfShape MW;
1136 TopTools_DataMapOfShapeInteger SI;
1137 TopTools_MapOfShape MapIntWires;
1138 MW.Clear();
1139 SI.Clear();
1140 MapIntWires.Clear();
1141 Standard_Integer NbOuts=0;
1142 Standard_Integer i;
1ee621b6 1143
1144 NCollection_Array1<Bnd_Box2d> aWireBoxes(1, nb);
1145 Standard_Real uMiddle = 0, vMiddle = 0;
1146 Standard_Boolean isFirst = Standard_True;
1147 //create Bounding boxes for each wire
1148 for ( i = 1; i <= nb; i ++) {
1149 TopoDS_Shape aShape = ws.Value(i);
1150 TopoDS_Wire aWire = TopoDS::Wire (aShape);
1151 Bnd_Box2d aBox;
1152 Standard_Real cf,cl;
1153 TopoDS_Iterator ew (aWire);
1154 for(;ew.More(); ew.Next()) {
1155 TopoDS_Edge ed = TopoDS::Edge (ew.Value());
1156 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface (ed,myFace,cf,cl);
1157 Geom2dAdaptor_Curve gac;
1158 Standard_Real aFirst = cw->FirstParameter();
1159 Standard_Real aLast = cw->LastParameter();
1160 if(cw->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) && (cf < aFirst || cl > aLast)) {
1161 //avoiding problems with segment in Bnd_Box
1162 gac.Load(cw);
1163 }
1164 else
1165 gac.Load(cw,cf,cl);
1166 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),aBox);
1167 }
1168
1169 Standard_Real aXMin, aXMax, aYMin, aYMax;
1170 aBox.Get(aXMin, aYMin, aXMax, aYMax);
1171 if (isFirst) {
1172 isFirst = Standard_False;
1173 uMiddle = (aXMin + aXMax) * 0.5;
1174 vMiddle = (aYMin + aYMax) * 0.5;
1175 }
1176 else {
1177 Standard_Real xShift = 0, yShift = 0;
1178 if ( mySurf->IsUClosed() )
1179 xShift = ShapeAnalysis::AdjustByPeriod ( 0.5*(aXMin + aXMax), uMiddle, uRange );
1180 if ( mySurf->IsVClosed() )
1181 yShift = ShapeAnalysis::AdjustByPeriod ( 0.5*(aYMin + aYMax), vMiddle, vRange ) ;
1182 aBox.Update(aXMin + xShift, aYMin + yShift, aXMax + xShift, aYMax + yShift);
1183 }
1184 aWireBoxes.ChangeValue(i) = aBox;
1185 }
7fd59977 1186
1187 for ( i = 1; i <= nb; i ++) {
1188 TopoDS_Shape asw = ws.Value(i);
1189 TopoDS_Wire aw = TopoDS::Wire (asw);
1ee621b6 1190 Bnd_Box2d aBox1 = aWireBoxes.Value(i);
7fd59977 1191 TopoDS_Shape dummy = myFace.EmptyCopied();
1192 TopoDS_Face af = TopoDS::Face ( dummy );
1193// B.MakeFace (af,mySurf->Surface(),::Precision::Confusion());
1194 af.Orientation ( TopAbs_FORWARD );
1195 B.Add (af,aw);
1196 // PTV OCC945 06.11.2002 files ie_exhaust-A.stp (entities 3782, 3787)
1197 // tolerance is too big. It is seems that to identify placement of 2d point
1198 // it is enough Precision::PConfusion(), cause wea re know that 2d point in TopAbs_ON
1199 // BRepTopAdaptor_FClass2d clas (af,toluv);
1200 Standard_Boolean CheckShift = Standard_True;
1201 BRepTopAdaptor_FClass2d clas (af,::Precision::PConfusion());
1202 TopAbs_State sta = TopAbs_OUT;
1203 TopAbs_State staout = clas.PerformInfinitePoint();
1204 TopTools_ListOfShape IntWires;
1ee621b6 1205 Standard_Integer aWireIt = 0;
7fd59977 1206 for ( Standard_Integer j = 1; j <= nbAll; j ++) {
1ee621b6 1207 aWireIt++;
7fd59977 1208 //if(i==j) continue;
1209 TopoDS_Shape aSh2 = allSubShapes.Value(j);
1210 if(aw == aSh2)
1211 continue;
1212 TopAbs_State stb = TopAbs_UNKNOWN;
1213 if(aSh2.ShapeType() == TopAbs_VERTEX) {
1ee621b6 1214 aWireIt--;
7fd59977 1215 gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aSh2));
1216 gp_Pnt2d p2d = mySurf->ValueOfUV(aP,Precision::Confusion());
1217 stb = clas.Perform (p2d,Standard_False);
1218 if(stb == staout && (uclosed || vclosed)) {
1219 gp_Pnt2d p2d1;
1220 if(uclosed) {
1ee621b6 1221 p2d1.SetCoord(p2d.X()+uRange, p2d.Y());
7fd59977 1222 stb = clas.Perform (p2d1,Standard_False);
1223
1224 }
1225 if(stb == staout && vclosed) {
1ee621b6 1226 p2d1.SetCoord(p2d.X(), p2d.Y()+ vRange);
7fd59977 1227 stb = clas.Perform (p2d1,Standard_False);
1228 }
1229 }
1230 }
1231 else if (aSh2.ShapeType() == TopAbs_WIRE) {
1232 CheckShift = Standard_True;
1233 TopoDS_Wire bw = TopoDS::Wire (aSh2);
1ee621b6 1234 //Standard_Integer numin =0;
1235 Bnd_Box2d aBox2 = aWireBoxes.Value(aWireIt);
1236 if (aBox2.IsOut(aBox1))
1237 continue;
1238
7fd59977 1239 TopoDS_Iterator ew (bw);
1240 for(;ew.More(); ew.Next()) {
1241 TopoDS_Edge ed = TopoDS::Edge (ew.Value());
1242 Standard_Real cf,cl;
1243 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface (ed,myFace,cf,cl);
1244 if (cw.IsNull()) continue;
1245 gp_Pnt2d unp = cw->Value ((cf+cl)/2.);
1246 TopAbs_State ste = clas.Perform (unp,Standard_False);
1247 if( ste==TopAbs_OUT || ste==TopAbs_IN ) {
1248 if(stb==TopAbs_UNKNOWN) {
1249 stb = ste;
1250 }
1251 else {
1252 if(!(stb==ste)) {
1253 sta = TopAbs_UNKNOWN;
1254 SI.Bind(aw,0);
1255 j=nb;
1256 break;
1257 }
1258 }
1259 }
1260
1261 Standard_Boolean found = Standard_False;
1262 gp_Pnt2d unp1;
1263 if( stb == staout && CheckShift ) {
1264 CheckShift = Standard_False;
1265 if(uclosed) {
1ee621b6 1266 unp1.SetCoord(unp.X()+uRange, unp.Y());
7fd59977 1267 found = (staout != clas.Perform (unp1,Standard_False));
1268 if(!found) {
1ee621b6 1269 unp1.SetX(unp.X()-uRange);
7fd59977 1270 found = (staout != clas.Perform (unp1,Standard_False));
1271 }
1272 }
1273 if(vclosed&&!found) {
1ee621b6 1274 unp1.SetCoord(unp.X(), unp.Y()+vRange);
7fd59977 1275 found = (staout != clas.Perform (unp1,Standard_False));
1276 if(!found) {
1ee621b6 1277 unp1.SetY(unp.Y()-vRange);
7fd59977 1278 found = (staout != clas.Perform (unp1,Standard_False));
1279 }
1280 }
1281 }
1282 if(found) {
1283 if(stb==TopAbs_IN) stb = TopAbs_OUT;
1284 else stb = TopAbs_IN;
1285 Shift2dWire(bw,myFace,unp1.XY()-unp.XY(), mySurf);
1286 }
1287 }
1288 }
1289 if(stb==staout) {
1290 sta = TopAbs_IN;
1291 }
1292 else {
1293 IntWires.Append(aSh2);
1294 MapIntWires.Add(aSh2);
1295 }
1296 }
1297
1298 if (sta == TopAbs_UNKNOWN) { // ERREUR
999d2599 1299 SendWarning ( aw, Message_Msg ( "FixAdvFace.FixOrientation.MSG11" ) );// Cannot orient wire
7fd59977 1300 }
1301 else {
1302 MW.Bind(aw,IntWires);
1303 if(sta==TopAbs_OUT) {
1304 NbOuts++;
1305 if(staout==TopAbs_IN) {
1306 // wire is OUT but InfinitePoint is IN => need to reverse
1307 ShapeExtend_WireData sewd (aw);
1308 sewd.Reverse(myFace);
1309 ws.SetValue (i,sewd.Wire());
999d2599 1310 SendWarning ( sewd.Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
7fd59977 1311 aSeqReversed.Append(i);
1312 done = Standard_True;
1313 SI.Bind(ws.Value(i),1);
1314 MapWires.Bind(ws.Value(i),IntWires);
1315 }
1316 else {
1317 SI.Bind(aw,1);
1318 MapWires.Bind(aw,IntWires);
1319 }
1320 }
1321 else {
1322 if(staout==TopAbs_OUT) SI.Bind(aw,2);
1323 else SI.Bind(aw,3);
1324 }
1325 }
1326
1327 }
1328
1329 for(i=1; i<=nb; i++) {
1330 TopoDS_Wire aw = TopoDS::Wire (ws.Value(i));
1331 Standard_Integer tmpi = SI.Find(aw);
1332 if(tmpi>1) {
1333 if(!MapIntWires.Contains(aw)) {
1334 NbOuts++;
1335 const TopTools_ListOfShape& IW = MW.Find(aw);
1336 if(tmpi==3) {
1337 // wire is OUT but InfinitePoint is IN => need to reverse
1338 ShapeExtend_WireData sewd (aw);
1339 sewd.Reverse(myFace);
1340 ws.SetValue (i,sewd.Wire());
999d2599 1341 SendWarning ( sewd.Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
7fd59977 1342 aSeqReversed.Append(i);
1343 done = Standard_True;
1344 MapWires.Bind(ws.Value(i),IW);
1345 }
1346 else MapWires.Bind(aw,IW);
1347 }
1348 else {
1349 if(tmpi==2) {
1350 // wire is IN but InfinitePoint is OUT => need to reverse
1351 ShapeExtend_WireData sewd (aw);
1352 sewd.Reverse(myFace);
1353 ws.SetValue (i,sewd.Wire());
999d2599 1354 SendWarning ( sewd.Wire(), Message_Msg ( "FixAdvFace.FixOrientation.MSG5" ) );// Wire on face was reversed
7fd59977 1355 aSeqReversed.Append(i);
1356 done = Standard_True;
1357 }
1358 }
1359 }
1360 }
1361
1362 }
1363
1364 //done = (done && (nb ==1 || (isAddNaturalBounds || (!isAddNaturalBounds && nbInternal <nb))));
1365 if(isAddNaturalBounds && nb == aSeqReversed.Length())
1366 done = Standard_False;
1367 else
1368 done = (done && (nb ==1 || (isAddNaturalBounds || (!isAddNaturalBounds && nbInternal <nb))));
1369 // Faut-il reconstruire ? si myRebil est mis
1370 if ( done ) {
1371 TopoDS_Shape S = myFace.EmptyCopied();
1372 S.Orientation ( TopAbs_FORWARD );
1373 Standard_Integer i = 1;
1374 for ( ; i <= nb; i++ )
1375 B.Add ( S, ws.Value(i) );
1376
1377 if(nb < nbAll) {
1378 for( i =1; i <= nbAll;i++) {
1379 TopoDS_Shape aS2 = allSubShapes.Value(i);
1380 if(aS2.ShapeType() != TopAbs_WIRE ||
1381 (aS2.Orientation() != TopAbs_FORWARD && aS2.Orientation() != TopAbs_REVERSED))
1382 B.Add ( S,aS2);
1383 }
1384 }
1385
1386 if ( ! myFwd ) S.Orientation (TopAbs_REVERSED);
1387 if ( ! Context().IsNull() ) Context()->Replace ( myFace, S );
1388 myFace = TopoDS::Face ( S );
1389 BRepTools::Update(myFace);
1390 Standard_Integer k =1;
999d2599
D		 1391 for( ; k <= aSeqReversed.Length(); k++ )
1392 {
63c629aa 1393#ifdef SHAPEFIX_DEB
999d2599 1394 cout<<"Wire no "<<aSeqReversed.Value(k)<<" of "<<nb<<" reversed"<<endl; // mise au point !
7fd59977 1395#endif
1396 }
1397
1398 }
1399 return done;
1400}
1401
1402
1403//=======================================================================
1404//function : CheckWire
1405//purpose : auxilary for FixMissingSeam
1406//=======================================================================
1407//:i7 abv 18 Sep 98: ProSTEP TR9 r0501-ug.stp: algorithm of fixing missing seam changed
1408// test whether the wire is opened on period of periodical surface
1409static Standard_Boolean CheckWire (const TopoDS_Wire &wire,
1410 const TopoDS_Face &face,
1411 const Standard_Real dU,
1412 const Standard_Real dV,
1413 Standard_Integer &isuopen,
1414 Standard_Integer &isvopen,
1415 Standard_Boolean &isDeg)
1416{
1417 gp_XY vec;
1418 vec.SetX(0);
1419 vec.SetY(0);
1420 ShapeAnalysis_Edge sae;
59495dbe 1421
1422 isuopen = isvopen = 0;
7fd59977 1423 isDeg = Standard_True;
1424 for ( TopoDS_Iterator ed(wire); ed.More(); ed.Next() ) {
1425 TopoDS_Edge edge = TopoDS::Edge ( ed.Value() );
1426 if ( ! BRep_Tool::Degenerated ( edge ) ) isDeg = Standard_False;
1427 Handle(Geom2d_Curve) c2d;
1428 Standard_Real f, l;
1429 if ( ! sae.PCurve ( edge, face, c2d, f, l, Standard_True ) )
1430 return Standard_False;
1431 vec += c2d->Value(l).XY() - c2d->Value(f).XY();
1432 }
59495dbe 1433
1434 Standard_Real aDelta = Abs(vec.X())-dU;
1435 if(Abs(aDelta) < 0.1*dU)
1436 {
1437 if(vec.X() > 0.0)
1438 {
1439 isuopen = 1;
1440 }
1441 else
1442 {
1443 isuopen = -1;
1444 }
1445 }
1446 else
1447 {
1448 isuopen = 0;
1449 }
1450
1451 aDelta = Abs(vec.Y())-dV;
1452 if(Abs(aDelta) < 0.1*dV)
1453 {
1454 if(vec.Y() > 0.0)
1455 {
1456 isvopen = 1;
1457 }
1458 else
1459 {
1460 isvopen = -1;
1461 }
1462 }
1463 else
1464 {
1465 isvopen = 0;
1466 }
1467
7fd59977 1468 return isuopen || isvopen;
1469}
1470
7fd59977 1471//=======================================================================
1472//function : FixMissingSeam
1473//purpose :
1474//=======================================================================
7fd59977 1475Standard_Boolean ShapeFix_Face::FixMissingSeam()
1476{
1477 Standard_Boolean uclosed = mySurf->IsUClosed();
1478 Standard_Boolean vclosed = mySurf->IsVClosed();
1479
1480 if ( ! uclosed && ! vclosed ) return Standard_False;
1481
1482 if ( ! Context().IsNull() ) {
1483 TopoDS_Shape S = Context()->Apply ( myFace );
1484 myFace = TopoDS::Face ( S );
1485 }
1486
1487 //%pdn: surface should be made periodic before (see ShapeCustom_Surface)!
1488 if (mySurf->Surface()->IsKind(STANDARD_TYPE (Geom_BSplineSurface))) {
1489 Handle (Geom_BSplineSurface) BSpl = Handle (Geom_BSplineSurface)::DownCast (mySurf->Surface());
1490 if (!BSpl->IsUPeriodic() && !BSpl->IsVPeriodic())
1491 return Standard_False;
1492 }
1493
1494 Standard_Real URange, VRange, SUF, SUL, SVF, SVL;
1495 mySurf->Bounds ( SUF, SUL, SVF, SVL );
1496 Standard_Real fU1,fU2,fV1,fV2;
1497 BRepTools::UVBounds(myFace,fU1,fU2,fV1,fV2);
1498
1499 //pdn OCC55 fix to faces without the wires to avoid identical first and last parameters
1500 if ( ::Precision::IsInfinite ( SUF ) || ::Precision::IsInfinite ( SUL ) ) {
1501 if ( ::Precision::IsInfinite ( SUF ) ) SUF = fU1;
1502 if ( ::Precision::IsInfinite ( SUL ) ) SUL = fU2;
eafb234b 1503 if(Abs(SUL-SUF) < ::Precision::PConfusion()) {
7fd59977 1504 if ( ::Precision::IsInfinite ( SUF ) ) SUF-=1000.;
1505 else SUL+=1000.;
eafb234b 1506 }
7fd59977 1507 }
1508 if ( ::Precision::IsInfinite ( SVF ) || ::Precision::IsInfinite ( SVL ) ) {
1509 if ( ::Precision::IsInfinite ( SVF ) ) SVF = fV1;
1510 if ( ::Precision::IsInfinite ( SVL ) ) SVL = fV2;
eafb234b 1511 if(Abs(SVL-SVF) < ::Precision::PConfusion()) {
7fd59977 1512 if ( ::Precision::IsInfinite ( SVF ) ) SVF-=1000.;
1513 else SVL+=1000.;
eafb234b 1514 }
7fd59977 1515 }
1516
59495dbe 1517 URange = Min(Abs (SUL - SUF), Precision::Infinite());
1518 VRange = Min(Abs(SVL - SVF), Precision::Infinite());
7fd59977 1519// Standard_Real UTol = 0.2 * URange, VTol = 0.2 * VRange;
1520 Standard_Integer ismodeu = 0, ismodev = 0; //szv#4:S4163:12Mar99 was Boolean
1521 Standard_Integer isdeg1=0, isdeg2=0;
1522
1523 TopTools_SequenceOfShape ws;
1524 TopTools_SequenceOfShape aSeqNonManif;
1525 for ( TopoDS_Iterator wi(myFace,Standard_False); wi.More(); wi.Next() ) {
1526 if(wi.Value().ShapeType() != TopAbs_WIRE ||
1527 (wi.Value().Orientation() != TopAbs_FORWARD && wi.Value().Orientation() != TopAbs_REVERSED)) {
1528 aSeqNonManif.Append(wi.Value());
1529 continue;
1530 }
1531 ws.Append ( wi.Value() );
1532 }
1533
1534 TopoDS_Wire w1, w2;
1535 Standard_Integer i;
1536 for ( i=1; i <= ws.Length(); i++ ) {
1537 TopoDS_Wire wire = TopoDS::Wire ( ws.Value(i) );
1538 Standard_Integer isuopen, isvopen;
1539 Standard_Boolean isdeg;
1540 if ( ! CheckWire ( wire, myFace, URange, VRange, isuopen, isvopen, isdeg ) )
1541 continue;
1542 if ( w1.IsNull() ) { w1 = wire; ismodeu = isuopen; ismodev = isvopen; isdeg1 = isdeg ? i : 0; }
1543 else if ( w2.IsNull() ) {
1544 if ( ismodeu == -isuopen && ismodev == -isvopen ) { w2 = wire; isdeg2 = isdeg ? i : 0; }
1545 else if ( ismodeu == isuopen && ismodev == isvopen ) {
1546 w2 = wire;
1547 isdeg2 = isdeg;
1548 //:abv 29.08.01: If wires are contraversal, reverse one of them
1549 // If first one is single degenerated edge, reverse it; else second
1550 if ( isdeg1 ) {
1551 w1.Reverse();
1552 ismodeu = -ismodeu;
1553 ismodev = -ismodev;
1554 }
1555 else {
1556 w2.Reverse();
63c629aa 1557#ifdef SHAPEFIX_DEB
7fd59977 1558 if ( ! isdeg2 ) cout << "Warning: ShapeFix_Face::FixMissingSeam(): wire reversed" << endl;
1559#endif
1560 }
1561 }
63c629aa 1562#ifdef SHAPEFIX_DEB
7fd59977 1563 else cout << "Warning: ShapeFix_Face::FixMissingSeam(): incompatible open wires" << endl;
1564#endif
1565 }
1566// else return Standard_False; // abort
1567 else {
63c629aa 1568#ifdef SHAPEFIX_DEB
7fd59977 1569 cout << "Warning: ShapeFix_Face::FixMissingSeam(): more than two open wires detected!" << endl;
1570#endif
1571 //:abv 30.08.09: if more than one open wires and more than two of them are
1572 // completely degenerated, remove any of them
1573 if ( isdeg || isdeg1 || isdeg2 ) {
1574 ws.Remove ( isdeg ? i : isdeg2 ? isdeg2 : isdeg1 );
1575 w1.Nullify();
1576 w2.Nullify();
1577 i = 0;
63c629aa 1578#ifdef SHAPEFIX_DEB
7fd59977 1579 cout << "Warning: ShapeFix_Face::FixMissingSeam(): open degenerated wire removed" << endl;
1580#endif
1581 continue;
1582 }
1583 }
1584 }
1585
1586 BRep_Builder B;
1587 if ( w1.IsNull() ) return Standard_False;
16c7b642 1588 else if ( w2.IsNull()) {
1589 // For spheres and BSpline cone-like surfaces(bug 24055):
1590 // If only one of wires limiting face on surface is open in 2d,
1591 // this may means that degenerated edge should be added, and
7fd59977 1592 // then usual procedure applied
16c7b642 1593 gp_Pnt2d p;
1594 gp_Dir2d d;
1595 Standard_Real aRange;
1596
7fd59977 1597 if ( ismodeu && mySurf->Surface()->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ) {
16c7b642 1598 p.SetCoord ( ( ismodeu < 0 ? 0. : 2.*M_PI ), ismodeu * 0.5 * M_PI );
1599 Standard_Real aXCoord = -ismodeu;
1600 d.SetCoord ( aXCoord, 0.);
1601 aRange = 2.*M_PI;
1602 }
1603 else if ( ismodev && mySurf->Surface()->IsKind(STANDARD_TYPE(Geom_BSplineSurface))) {
1604 Standard_Real uCoord;
1605 if (mySurf->Value(SUF, SVF).Distance(mySurf->Value(SUF, (SVF + SVL) / 2)) < ::Precision::Confusion())
1606 uCoord = SUF;
1607 else if (mySurf->Value(SUL, SVF).Distance(mySurf->Value(SUL, (SVF + SVL) / 2)) < ::Precision::Confusion())
1608 uCoord = SUL;
1609 else return Standard_False;
1610
1611 p.SetCoord ( uCoord, ( ismodev < 0 ? 0. : VRange ) );
1612 d.SetCoord ( 0., -ismodev);
1613 aRange = VRange;
1614 }
1615 else if ( ismodeu && mySurf->Surface()->IsKind(STANDARD_TYPE(Geom_BSplineSurface))) {
1616 Standard_Real vCoord;
1617 if (mySurf->Value(SUF, SVF).Distance(mySurf->Value((SUF + SUL) / 2, SVF)) < ::Precision::Confusion())
1618 vCoord = SVF;
1619 else if (mySurf->Value(SUL, SVL).Distance(mySurf->Value((SUF + SUL) / 2, SVL)) < ::Precision::Confusion())
1620 vCoord = SVL;
1621 else return Standard_False;
1622
1623 p.SetCoord ( ( ismodeu < 0 ? 0. : URange ), vCoord );
1624 Standard_Real aXCoord = -ismodeu;
1625 d.SetCoord ( aXCoord, 0.);
1626 aRange = URange;
7fd59977 1627 }
1628 else return Standard_False;
16c7b642 1629
1630 Handle(Geom2d_Line) line = new Geom2d_Line ( p, d );
1631 TopoDS_Edge edge;
1632 B.MakeEdge ( edge );
1633 B.Degenerated ( edge, Standard_True );
1634 B.UpdateEdge ( edge, line, myFace, ::Precision::Confusion() );
1635 B.Range ( edge, myFace, 0., aRange );
1636 TopoDS_Vertex V;
1637 B.MakeVertex ( V, mySurf->Value ( p.X(), p.Y() ), ::Precision::Confusion() );
1638 V.Orientation(TopAbs_FORWARD);
1639 B.Add(edge,V);
1640 V.Orientation(TopAbs_REVERSED);
1641 B.Add(edge,V);
1642 B.MakeWire ( w2 );
1643 B.Add ( w2, edge );
1644 ws.Append ( w2 );
7fd59977 1645 }
1646
1647 // sort original wires
1648 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
1649 sfw->SetFace ( myFace );
1650 sfw->SetPrecision ( Precision() );
1651
1652 Handle(ShapeExtend_WireData) wd1 = new ShapeExtend_WireData ( w1 );
1653 Handle(ShapeExtend_WireData) wd2 = new ShapeExtend_WireData ( w2 );
1654
1655 // sorting
1656// Standard_Boolean degenerated = ( secondDeg != firstDeg );
1657// if ( ! degenerated ) {
1658 sfw->Load ( wd1 );
1659 sfw->FixReorder();
1660// }
1661 sfw->Load ( wd2 );
1662 sfw->FixReorder();
1663
1664 //:abv 29.08.01: reconstruct face taking into account reversing
1665 TopoDS_Shape dummy = myFace.EmptyCopied();
1666 TopoDS_Face tmpF = TopoDS::Face ( dummy );
1667 tmpF.Orientation ( TopAbs_FORWARD );
1668 for ( i=1; i <= ws.Length(); i++ ) {
1669 TopoDS_Wire wire = TopoDS::Wire ( ws.Value(i) );
1670 if ( wire.IsSame ( w1 ) ) wire = w1;
1671 else if ( wire.IsSame ( w2 ) ) wire = w2;
1672 B.Add ( tmpF, wire );
1673 }
1674 tmpF.Orientation ( myFace.Orientation() );
1675
1676 Standard_Real uf=SUF, vf=SVF;
1677
1678 // A special kind of FixShifted is necessary for torus-like
1679 // surfaces to adjust wires by period ALONG the missing SEAM direction
1680 // tr9_r0501-ug.stp #187640
1681 if ( uclosed && vclosed ) {
1682 Standard_Integer coord = ( ismodeu ? 1 : 0 );
1683 Standard_Integer isneg = ( ismodeu ? ismodeu : -ismodev );
1684 Standard_Real period = ( ismodeu ? URange : VRange );
1685 TopoDS_Shape S;
1686 Standard_Real m1[2][2], m2[2][2];
1687 S = tmpF.EmptyCopied();
1688 B.Add ( S, w1 );
1689 ShapeAnalysis::GetFaceUVBounds (TopoDS::Face(S), m1[0][0], m1[0][1], m1[1][0], m1[1][1]);
1690 S = tmpF.EmptyCopied();
1691 B.Add ( S, w2 );
1692 ShapeAnalysis::GetFaceUVBounds (TopoDS::Face(S), m2[0][0], m2[0][1], m2[1][0], m2[1][1]);
1693 Standard_Real shiftw2 =
1694 ShapeAnalysis::AdjustByPeriod ( 0.5 * ( m2[coord][0] + m2[coord][1] ),
1695 0.5 * ( m1[coord][0] + m1[coord][1] +
1696 isneg * ( period + ::Precision::PConfusion() ) ),
1697 period );
1698 m1[coord][0] = Min ( m1[coord][0], m2[coord][0] + shiftw2 );
1699 m1[coord][1] = Max ( m1[coord][1], m2[coord][1] + shiftw2 );
1700 for ( TopoDS_Iterator it(tmpF,Standard_False); it.More(); it.Next() ) {
1701 if(it.Value().ShapeType() != TopAbs_WIRE)
1702 continue;
1703 TopoDS_Wire w = TopoDS::Wire ( it.Value() );
1704 if ( w == w1 ) continue;
1705 Standard_Real shift;
1706 if ( w == w2 ) shift = shiftw2;
1707 else {
1708 S = tmpF.EmptyCopied();
1709 B.Add ( S, w );
1710 ShapeAnalysis::GetFaceUVBounds (TopoDS::Face(S), m2[0][0], m2[0][1], m2[1][0], m2[1][1]);
1711 shift = ShapeAnalysis::AdjustByPeriod ( 0.5 * ( m2[coord][0] + m2[coord][1] ),
1712 0.5 * ( m1[coord][0] + m1[coord][1] ), period );
1713 }
1714 if ( shift != 0. ) {
1715 gp_Vec2d V(0.,0.);
1716 V.SetCoord ( coord+1, shift );
1717 ShapeAnalysis_Edge sae;
1718 for ( TopoDS_Iterator iw(w); iw.More(); iw.Next() ) {
1719 TopoDS_Edge E = TopoDS::Edge ( iw.Value() );
1720 Handle(Geom2d_Curve) C;
1721 Standard_Real a, b;
1722 if ( ! sae.PCurve ( E, tmpF, C, a, b ) ) continue;
1723 C->Translate ( V );
1724 }
1725 }
1726 }
1727 // abv 05 Feb 02: OCC34
1728 // by the way, select proper split place by V to avoid extra intersections
1729 if ( m1[coord][1] - m1[coord][0] <= period ) {
1730 Standard_Real other = 0.5 * ( m1[coord][0] + m1[coord][1] - period );
1731 if ( ismodeu ) vf = other;
1732 else uf = other;
1733 }
1734 }
1735
1736 // find the best place by u and v to insert a seam
1737 // (so as to minimize splitting edges as possible)
1738 ShapeAnalysis_Edge sae;
1739 Standard_Integer foundU=0, foundV=0;
1740 Standard_Integer nb1 = wd1->NbEdges();
1741 Standard_Integer nb2 = wd2->NbEdges();
1742 for ( Standard_Integer i1 = 1; i1 <= nb1 + nb2; i1++ ) {
1743 TopoDS_Edge edge1 = ( i1 <= nb1 ? wd1->Edge ( i1 ) : wd2->Edge ( i1-nb1 ) );
1744 Handle(Geom2d_Curve) c2d;
1745 Standard_Real f, l;
1746 if ( ! sae.PCurve ( edge1, tmpF, c2d, f, l, Standard_True ) ) return Standard_False;
1747 gp_Pnt2d pos1 = c2d->Value(l).XY();
1748 // the best place is end of edge which is nearest to 0
1749 Standard_Boolean skipU = ! uclosed;
1750 if ( uclosed && ismodeu ) {
1751 pos1.SetX ( pos1.X() + ShapeAnalysis::AdjustByPeriod ( pos1.X(), SUF, URange ) );
1752 if ( foundU ==2 && Abs ( pos1.X() ) > Abs(uf) ) skipU = Standard_True;
1753 else if ( ! foundU || ( foundU ==1 && Abs ( pos1.X() ) < Abs(uf) ) ) {
1754 foundU = 1;
1755 uf = pos1.X();
1756 }
1757 }
1758 Standard_Boolean skipV = ! vclosed;
1759 if ( vclosed && ! ismodeu ) {
16c7b642 1760 pos1.SetY ( pos1.Y() + ShapeAnalysis::AdjustByPeriod ( pos1.Y(), SVF, VRange ) );
7fd59977 1761 if ( foundV ==2 && Abs ( pos1.Y() ) > Abs(vf) ) skipV = Standard_True;
1762 else if ( ! foundV || ( foundV ==1 && Abs ( pos1.Y() ) < Abs(vf) ) ) {
1763 foundV = 1;
1764 vf = pos1.Y();
1765 }
1766 }
eafb234b 1767 if ( skipU && skipV ) {
7fd59977 1768 if ( i1 <= nb1 ) continue;
1769 else break;
eafb234b 1770 }
7fd59977 1771 // or yet better - if it is end of some edges on both wires
1772 for ( Standard_Integer i2 = 1; i1 <= nb1 && i2 <= nb2; i2++ ) {
1773 TopoDS_Edge edge2 = wd2->Edge ( i2 );
1774 if ( ! sae.PCurve ( edge2, tmpF, c2d, f, l, Standard_True ) ) return Standard_False;
1775 gp_Pnt2d pos2 = c2d->Value(f).XY();
1776 if ( uclosed && ismodeu ) {
1777 pos2.SetX ( pos2.X() + ShapeAnalysis::AdjustByPeriod ( pos2.X(), pos1.X(), URange ) );
1778 if ( Abs ( pos2.X() - pos1.X() ) < ::Precision::PConfusion() &&
1779 ( foundU != 2 || Abs ( pos1.X() ) < Abs ( uf ) ) ) {
1780 foundU = 2;
1781 uf = pos1.X();
1782 }
1783 }
1784 if ( vclosed && ! ismodeu ) {
1785 pos2.SetY ( pos2.Y() + ShapeAnalysis::AdjustByPeriod ( pos2.Y(), pos1.Y(), VRange ) );
1786 if ( Abs ( pos2.Y() - pos1.Y() ) < ::Precision::PConfusion() &&
1787 ( foundV != 2 || Abs ( pos1.Y() ) < Abs ( vf ) ) ) {
1788 foundV = 2;
1789 vf = pos1.Y();
1790 }
1791 }
1792 }
1793 }
1794
1795 //pdn fixing RTS on offsets
1796 if ( uf < SUF || uf > SUL )
1797 uf+=ShapeAnalysis::AdjustToPeriod(uf,SUF,SUF+URange);
1798 if ( vf < SVF || vf > SVL )
1799 vf+=ShapeAnalysis::AdjustToPeriod(vf,SVF,SVF+VRange);
1800
1801 // Create fictive grid and call ComposeShell to insert a seam
1802 Handle(Geom_RectangularTrimmedSurface) RTS =
1803 new Geom_RectangularTrimmedSurface ( mySurf->Surface(), uf, uf+URange, vf, vf+VRange );
1804 Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
1805 grid->SetValue ( 1, 1, RTS ); //mySurf->Surface() );
1806 Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
1807 TopLoc_Location L;
1808
1809 //addition non-manifold topology
1810 Standard_Integer j=1;
1811 for( ; j <= aSeqNonManif.Length(); j++)
1812 B.Add(tmpF,aSeqNonManif.Value(j));
1813
1814 ShapeFix_ComposeShell CompShell;
1815// TopoDS_Face tmpF = myFace;
1816// tmpF.Orientation(TopAbs_FORWARD);
1817 CompShell.Init ( G, L, tmpF, ::Precision::Confusion() );//myPrecision
1818 if ( Context().IsNull() ) SetContext ( new ShapeBuild_ReShape );
1819 CompShell.ClosedMode() = Standard_True;
1820 CompShell.SetContext( Context() );
1821 CompShell.SetMaxTolerance(MaxTolerance());
1822 CompShell.Perform();
1823
1824 // abv 03.07.00: CAX-IF TRJ4: trj4_k1_goe-tu-214.stp: #785: reset mySurf
1825 mySurf = new ShapeAnalysis_Surface ( RTS );
1826
1827 myResult = CompShell.Result();
1828// if ( myFace.Orientation() == TopAbs_REVERSED ) res.Reverse();
1829 Context()->Replace ( myFace, myResult );
1830 for (TopExp_Explorer exp ( myResult, TopAbs_FACE ); exp.More(); exp.Next() ) {
1831 myFace = TopoDS::Face ( exp.Current() );
1832 BRepTools::Update(myFace); //:p4
1833 }
1834
999d2599 1835 SendWarning ( Message_Msg ( "FixAdvFace.FixMissingSeam.MSG0" ) );// Missing seam-edge added
7fd59977 1836 return Standard_True;
1837}
1838
1839//=======================================================================
1840//function : FixSmallAreaWire
1841//purpose :
1842//=======================================================================
1843
1844//%14 pdn 24.02.99 PRO10109, USA60293 fix wire on face with small area.
1845Standard_Boolean ShapeFix_Face::FixSmallAreaWire()
1846{
1847 if ( ! Context().IsNull() ) {
1848 TopoDS_Shape S = Context()->Apply ( myFace );
1849 myFace = TopoDS::Face ( S );
1850 }
1851
1852 //smh#8
1853 TopoDS_Shape emptyCopied = myFace.EmptyCopied();
1854 TopoDS_Face face = TopoDS::Face (emptyCopied);
1855 Standard_Integer nbRemoved = 0, nbWires = 0;
1856 BRep_Builder B;
1857 Standard_Real prec = ::Precision::PConfusion()*100;
1858 for (TopoDS_Iterator wi (myFace, Standard_False); wi.More(); wi.Next()) {
1859 if(wi.Value().ShapeType() != TopAbs_WIRE &&
56084216 1860 (wi.Value().Orientation() != TopAbs_FORWARD && wi.Value().Orientation() != TopAbs_REVERSED))
7fd59977 1861 continue;
1862 TopoDS_Wire wire = TopoDS::Wire ( wi.Value() );
1863 Handle(ShapeAnalysis_Wire) saw = new ShapeAnalysis_Wire(wire,myFace,prec);
999d2599
D		 1864 if ( saw->CheckSmallArea(prec) )
1865 {
1866 SendWarning ( wire, Message_Msg ("FixAdvFace.FixSmallAreaWire.MSG0") );// Null area wire detected, wire skipped
1867 nbRemoved++;
1868 }
1869 else
1870 {
7fd59977 1871 B.Add(face,wire);
1872 nbWires++;
1873 }
1874 }
1875 if ( nbRemoved <=0 ) return Standard_False;
1876
1877 if ( nbWires <=0 ) {
63c629aa 1878#ifdef SHAPEFIX_DEB
7fd59977 1879 cout << "Warning: ShapeFix_Face: All wires on a face have small area; left untouched" << endl;
1880#endif
1881 return Standard_False;
1882 }
63c629aa 1883#ifdef SHAPEFIX_DEB
7fd59977 1884 cout << "Warning: ShapeFix_Face: " << nbRemoved << " small area wire(s) removed" << endl;
1885#endif
1886 if ( ! Context().IsNull() ) Context()->Replace ( myFace, face );
1887 myFace = face;
7fd59977 1888 return Standard_True;
1889}
1890//=======================================================================
1891//function : FixLoopWire
1892//purpose :
1893//=======================================================================
1894static void FindNext(const TopoDS_Shape& aVert,
1895 const TopoDS_Shape& ainitEdge,
1896 TopTools_IndexedMapOfShape& aMapVertices,
1897 TopTools_DataMapOfShapeListOfShape& aMapVertexEdges,
1898 const TopTools_MapOfShape& aMapSmallEdges,
1899 const TopTools_MapOfShape& aMapSeemEdges,
1900 TopTools_MapOfShape& aMapEdges,
1901 Handle(ShapeExtend_WireData)& aWireData)
1902{
1903 TopoDS_Iterator aItV(ainitEdge);
1904 TopoDS_Shape anextVert = aVert;
1905 Standard_Boolean isFind = Standard_False;
1906 for( ; aItV.More() && !isFind; aItV.Next())
1907 {
1908 if(!aItV.Value().IsSame(aVert) ) {
1909 isFind = Standard_True;
1910 anextVert = aItV.Value();
1911
1912 }
1913 }
1914
1915 if(!isFind && !aMapSmallEdges.Contains(ainitEdge))
1916 return;
1917 if(isFind && aMapVertices.Contains(anextVert))
1918 return;
1919
1920 const TopTools_ListOfShape& aledges = aMapVertexEdges.Find(anextVert);
1921 TopTools_ListIteratorOfListOfShape liter(aledges);
1922 isFind = Standard_False;
1923 TopoDS_Shape anextEdge;
1924 for( ; liter.More() && !isFind; liter.Next())
1925 {
1926 if(!aMapEdges.Contains(liter.Value()) && !liter.Value().IsSame(ainitEdge)) {
1927 anextEdge = liter.Value();
1928 aWireData->Add(anextEdge);
1929 if(aMapSeemEdges.Contains(anextEdge))
1930 aWireData->Add(anextEdge.Reversed());
1931 isFind = Standard_True;
1932 aMapEdges.Add(anextEdge);
1933 FindNext(anextVert,anextEdge,aMapVertices,aMapVertexEdges,aMapSmallEdges,aMapSeemEdges,aMapEdges,aWireData);
1934 }
1935 }
1936 return;
1937}
1938
1939static Standard_Boolean isClosed2D(const TopoDS_Face& aFace,const TopoDS_Wire& aWire)
1940{
1941 Standard_Boolean isClosed = Standard_True;
1942 Handle(ShapeAnalysis_Wire) asaw = new ShapeAnalysis_Wire(aWire,aFace,Precision::Confusion());
1943 for (Standard_Integer i = 1; i <= asaw->NbEdges() && isClosed; i++) {
1944 TopoDS_Edge edge1 = asaw->WireData()->Edge(i);
1945 //checking that wire is closed in 2D space with tolerance of vertex.
1946 ShapeAnalysis_Edge sae;
1947 TopoDS_Vertex v1 = sae.FirstVertex(edge1);
1948 asaw->SetPrecision(BRep_Tool::Tolerance(v1));
1949 asaw->CheckGap2d(i);
1950 isClosed = (asaw->LastCheckStatus(ShapeExtend_OK));
1951
1952 }
1953 return isClosed;
1954}
1955
1956//=======================================================================
1957//function : FixLoopWire
1958//purpose :
1959//=======================================================================
1960
1961Standard_Boolean ShapeFix_Face::FixLoopWire(TopTools_SequenceOfShape& aResWires)
1962{
1963 TopTools_IndexedMapOfShape aMapVertices;
1964 TopTools_DataMapOfShapeListOfShape aMapVertexEdges;
1965 TopTools_MapOfShape aMapSmallEdges;
1966 TopTools_MapOfShape aMapSeemEdges;
1967 if(!FixWireTool()->Analyzer()->CheckLoop(aMapVertices, aMapVertexEdges,aMapSmallEdges,aMapSeemEdges))
1968 return Standard_False;
1969
1970
1971 TopTools_MapOfShape aMapEdges;
1972 TopTools_SequenceOfShape aSeqWires;
1973
1974 //collecting wires from common vertex belonging more than 2 edges
1975 Standard_Integer i =1;
1976 for( ; i <= aMapVertices.Extent(); i++) {
1977 TopoDS_Shape aVert = aMapVertices.FindKey(i);
1978 const TopTools_ListOfShape& aledges = aMapVertexEdges.Find(aVert);
1979 TopTools_ListIteratorOfListOfShape liter(aledges);
1980 for( ; liter.More(); liter.Next())
1981 {
1982 TopoDS_Edge Edge = TopoDS::Edge(liter.Value());
1983 if(aMapEdges.Contains(Edge))
1984 continue;
1985
1986 Handle(ShapeExtend_WireData) aWireData = new ShapeExtend_WireData;
1987 aWireData->Add(Edge);
1988 if(aMapSeemEdges.Contains(Edge))
1989 aWireData->Add(Edge.Reversed());
1990 aMapEdges.Add(Edge);
1991 FindNext(aVert,Edge,aMapVertices,aMapVertexEdges,aMapSmallEdges,aMapSeemEdges,aMapEdges,aWireData);
1992 if(aWireData->NbEdges() ==1 && aMapSmallEdges.Contains(aWireData->Edge(1)))
1993 continue;
1994 TopoDS_Vertex aV1,aV2;
1995 TopoDS_Wire aWire = aWireData->Wire();
1996 TopExp::Vertices(aWire,aV1,aV2);
1997
1998 if(aV1.IsSame(aV2)) {
1999 Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(aWire);
2000 Handle(ShapeFix_Wire) asfw = new ShapeFix_Wire;
2001 asfw->Load(asewd);
2002 asfw->FixReorder();
2003 TopoDS_Wire awire2 = asfw->Wire();
2004 aResWires.Append(awire2);
2005
2006 }
2007 else aSeqWires.Append(aWireData->Wire());
2008 }
2009 }
2010
2011
2012 if(aSeqWires.Length() ==1) {
2013 aResWires.Append(aSeqWires.Value(1));
2014 }
2015 else {
2016 //collecting whole wire from two not closed wires having two common vertices.
2017 for( i =1; i <= aSeqWires.Length(); i++) {
2018 TopoDS_Vertex aV1,aV2;
2019 TopoDS_Wire aWire = TopoDS::Wire(aSeqWires.Value(i));
2020 TopExp::Vertices(aWire,aV1,aV2);
2021 Standard_Integer j = i+1;
2022 for( ; j <= aSeqWires.Length(); j++)
2023 {
2024 TopoDS_Vertex aV21,aV22;
2025 TopoDS_Wire aWire2 = TopoDS::Wire(aSeqWires.Value(j));
2026 TopExp::Vertices(aWire2,aV21,aV22);
2027 if((aV1.IsSame(aV21) || aV1.IsSame(aV22)) && (aV2.IsSame(aV21) || aV2.IsSame(aV22)))
2028 {
2029 Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(aWire);
2030 asewd->Add(aWire2);
2031 Handle(ShapeFix_Wire) asfw = new ShapeFix_Wire;
2032 asfw->Load(asewd);
2033 asfw->FixReorder();
2034 aResWires.Append(asfw->Wire());
2035 aSeqWires.Remove(j--);
2036 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2037 break;
2038 }
2039
2040 }
2041 if(j <= aSeqWires.Length())
2042 aSeqWires.Remove(i--);
2043
2044 }
2045 if(aSeqWires.Length()<3) {
2046 for( i =1; i <= aSeqWires.Length(); i++)
2047 aResWires.Append(aSeqWires.Value(i));
2048
2049 }
2050 else {
2051 //collecting wires having one common vertex
2052 for( i =1; i <= aSeqWires.Length(); i++) {
2053 TopoDS_Vertex aV1,aV2;
2054 TopoDS_Wire aWire = TopoDS::Wire(aSeqWires.Value(i));
2055 TopExp::Vertices(aWire,aV1,aV2);
2056 Standard_Integer j =i+1;
2057 for( ; j <= aSeqWires.Length(); j++)
2058 {
2059 TopoDS_Vertex aV21,aV22;
2060 TopoDS_Wire aWire2 = TopoDS::Wire(aSeqWires.Value(j));
2061 TopExp::Vertices(aWire2,aV21,aV22);
2062 if((aV1.IsSame(aV21) || aV1.IsSame(aV22)) || (aV2.IsSame(aV21) || aV2.IsSame(aV22)))
2063 {
2064 Handle(ShapeExtend_WireData) asewd = new ShapeExtend_WireData(aWire);
2065 asewd->Add(aWire2);
2066 Handle(ShapeFix_Wire) asfw = new ShapeFix_Wire;
2067 asfw->Load(asewd);
2068 asfw->FixReorder();
2069 aWire = asfw->Wire();
2070 TopExp::Vertices(aWire,aV1,aV2);
2071 aSeqWires.Remove(j--);
2072 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2073 }
2074 }
2075 aResWires.Append(aWire);
2076
2077 }
2078 }
2079 }
2080 Standard_Boolean isClosed = Standard_True;
2081
2082 //checking that obtained wires is closed in 2D space
2083 if (mySurf->Adaptor3d()->GetType() != GeomAbs_Plane) {
2084
2085 TopoDS_Shape emptyCopied = myFace.EmptyCopied();
2086 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
2087 tmpFace.Orientation ( TopAbs_FORWARD );
2088
2089 for(i =1; i <= aResWires.Length() && isClosed; i++) {
2090 TopoDS_Wire awire = TopoDS::Wire(aResWires.Value(i));
2091 isClosed = isClosed2D(tmpFace,awire);
2092 }
2093 }
2094
2095 Standard_Boolean isDone =(aResWires.Length() && isClosed);
999d2599
D		 2096 if(isDone && aResWires.Length() >1)
2097 {
63c629aa 2098#ifdef SHAPEFIX_DEB
999d2599 2099 cout<<"Wire was splitted on "<<aResWires.Length()<<" wires"<< endl;
7fd59977 2100#endif
2101 }
2102
2103 return isDone;
2104}
2105
7fd59977 2106//=======================================================================
2107//function : SplitEdge
2108//purpose :
2109//=======================================================================
2110
2111Standard_Boolean ShapeFix_Face::SplitEdge(const Handle(ShapeExtend_WireData)& sewd,
2112 const Standard_Integer num,
2113 const Standard_Real param,
2114 const TopoDS_Vertex& vert,
2115 const Standard_Real preci,
2116 ShapeFix_DataMapOfShapeBox2d& boxes)
2117{
2118 TopoDS_Edge edge = sewd->Edge(num);
2119 TopoDS_Edge newE1, newE2;
2120 ShapeFix_SplitTool aTool;
2121 if(aTool.SplitEdge(edge,param,vert,myFace,newE1,newE2,preci,0.01*preci)) {
2122 // change context
2123 Handle(ShapeExtend_WireData) wd = new ShapeExtend_WireData;
2124 wd->Add(newE1);
2125 wd->Add(newE2);
2126 if(!Context().IsNull()) Context()->Replace( edge, wd->Wire() );
2127 for (TopExp_Explorer exp ( wd->Wire(), TopAbs_EDGE ); exp.More(); exp.Next() ) {
2128 TopoDS_Edge E = TopoDS::Edge ( exp.Current() );
2129 BRepTools::Update(E);
2130 }
2131
2132// for ( Standard_Integer i=1; i <= sewd->NbEdges(); i++ ) {
2133// TopoDS_Edge E = sewd->Edge(i);
2134// TopoDS_Shape S = Context()->Apply ( E );
2135// if ( S == E ) continue;
2136// for ( TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next() )
2137// sewd->Add ( exp.Current(), i++ );
2138// sewd->Remove ( i-- );
2139// }
2140
2141 // change sewd and boxes
2142 sewd->Set(newE1,num);
2143 if(num==sewd->NbEdges())
2144 sewd->Add(newE2);
2145 else
2146 sewd->Add(newE2,num+1);
2147
2148 boxes.UnBind(edge);
2149 TopLoc_Location L;
2150 const Handle(Geom_Surface)& S = BRep_Tool::Surface(myFace,L);
2151 Handle(Geom2d_Curve) c2d;
2152 Standard_Real cf,cl;
2153 ShapeAnalysis_Edge sae;
2154 if(sae.PCurve(newE1,S,L,c2d,cf,cl,Standard_False)) {
2155 Bnd_Box2d box;
2156 Geom2dAdaptor_Curve gac;
2157 Standard_Real aFirst = c2d->FirstParameter();
2158 Standard_Real aLast = c2d->LastParameter();
2159 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2160 && (cf < aFirst || cl > aLast)) {
2161 //pdn avoiding problems with segment in Bnd_Box
2162 gac.Load(c2d);
2163 }
2164 else
2165 gac.Load(c2d,cf,cl);
2166 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2167 boxes.Bind(newE1,box);
2168 }
2169 if(sae.PCurve(newE2,S,L,c2d,cf,cl,Standard_False)) {
2170 Bnd_Box2d box;
2171 Geom2dAdaptor_Curve gac;
2172 Standard_Real aFirst = c2d->FirstParameter();
2173 Standard_Real aLast = c2d->LastParameter();
2174 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2175 && (cf < aFirst || cl > aLast)) {
2176 //pdn avoiding problems with segment in Bnd_Box
2177 gac.Load(c2d);
2178 }
2179 else
2180 gac.Load(c2d,cf,cl);
2181 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2182 boxes.Bind(newE2,box);
2183 }
2184 return Standard_True;
2185 }
2186 return Standard_False;
2187}
2188
2189
2190//=======================================================================
2191//function : SplitEdge
2192//purpose :
2193//=======================================================================
2194
2195Standard_Boolean ShapeFix_Face::SplitEdge(const Handle(ShapeExtend_WireData)& sewd,
2196 const Standard_Integer num,
2197 const Standard_Real param1,
2198 const Standard_Real param2,
2199 const TopoDS_Vertex& vert,
2200 const Standard_Real preci,
2201 ShapeFix_DataMapOfShapeBox2d& boxes)
2202{
2203 TopoDS_Edge edge = sewd->Edge(num);
2204 TopoDS_Edge newE1, newE2;
2205 ShapeFix_SplitTool aTool;
2206 if(aTool.SplitEdge(edge,param1,param2,vert,myFace,newE1,newE2,preci,0.01*preci)) {
2207 // change context
2208 Handle(ShapeExtend_WireData) wd = new ShapeExtend_WireData;
2209 wd->Add(newE1);
2210 wd->Add(newE2);
2211 if(!Context().IsNull()) Context()->Replace( edge, wd->Wire() );
2212 for (TopExp_Explorer exp ( wd->Wire(), TopAbs_EDGE ); exp.More(); exp.Next() ) {
2213 TopoDS_Edge E = TopoDS::Edge ( exp.Current() );
2214 BRepTools::Update(E);
2215 }
2216
2217 // change sewd and boxes
2218 sewd->Set(newE1,num);
2219 if(num==sewd->NbEdges())
2220 sewd->Add(newE2);
2221 else
2222 sewd->Add(newE2,num+1);
2223
2224 boxes.UnBind(edge);
2225 TopLoc_Location L;
2226 const Handle(Geom_Surface)& S = BRep_Tool::Surface(myFace,L);
2227 Handle(Geom2d_Curve) c2d;
2228 Standard_Real cf,cl;
2229 ShapeAnalysis_Edge sae;
2230 if(sae.PCurve(newE1,S,L,c2d,cf,cl,Standard_False)) {
2231 Bnd_Box2d box;
2232 Geom2dAdaptor_Curve gac;
2233 Standard_Real aFirst = c2d->FirstParameter();
2234 Standard_Real aLast = c2d->LastParameter();
2235 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2236 && (cf < aFirst || cl > aLast)) {
2237 //pdn avoiding problems with segment in Bnd_Box
2238 gac.Load(c2d);
2239 }
2240 else
2241 gac.Load(c2d,cf,cl);
2242 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2243 boxes.Bind(newE1,box);
2244 }
2245 if(sae.PCurve(newE2,S,L,c2d,cf,cl,Standard_False)) {
2246 Bnd_Box2d box;
2247 Geom2dAdaptor_Curve gac;
2248 Standard_Real aFirst = c2d->FirstParameter();
2249 Standard_Real aLast = c2d->LastParameter();
2250 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
2251 && (cf < aFirst || cl > aLast)) {
2252 //pdn avoiding problems with segment in Bnd_Box
2253 gac.Load(c2d);
2254 }
2255 else
2256 gac.Load(c2d,cf,cl);
2257 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
2258 boxes.Bind(newE2,box);
2259 }
2260 return Standard_True;
2261 }
2262 return Standard_False;
2263}
2264
2265
2266//=======================================================================
2267//function : FixIntersectingWires
2268//purpose :
2269//=======================================================================
2270
2271Standard_Boolean ShapeFix_Face::FixIntersectingWires()
2272{
2273 ShapeFix_IntersectionTool ITool(Context(),Precision(),MaxTolerance());
2274 return ITool.FixIntersectingWires(myFace);
2275}
2276
2277
2278//=======================================================================
2279//function : FixWiresTwoCoincEdges
2280//purpose :
2281//=======================================================================
2282
2283Standard_Boolean ShapeFix_Face::FixWiresTwoCoincEdges()
2284{
2285 if ( ! Context().IsNull() ) {
2286 TopoDS_Shape S = Context()->Apply ( myFace );
2287 myFace = TopoDS::Face ( S );
2288 }
2289
2290 TopAbs_Orientation ori = myFace.Orientation();
2291 TopoDS_Shape emptyCopied = myFace.EmptyCopied();
2292 TopoDS_Face face = TopoDS::Face (emptyCopied);
2293 face.Orientation(TopAbs_FORWARD);
2294 Standard_Integer nbWires = 0;
2295 BRep_Builder B;
2296
2297 for (TopoDS_Iterator it (myFace, Standard_False); it.More(); it.Next()) {
2298 if(it.Value().ShapeType() != TopAbs_WIRE ||
2299 (it.Value().Orientation() != TopAbs_FORWARD && it.Value().Orientation() != TopAbs_REVERSED)) {
2300 continue;
2301 }
2302 nbWires++;
2303 }
2304 if(nbWires<2) return Standard_False;
2305 Standard_Boolean isFixed = Standard_False;
2306 for (TopoDS_Iterator wi (myFace, Standard_False); wi.More(); wi.Next()) {
2307 if(wi.Value().ShapeType() != TopAbs_WIRE ||
2308 (wi.Value().Orientation() != TopAbs_FORWARD && wi.Value().Orientation() != TopAbs_REVERSED)) {
2309 B.Add(face,wi.Value());
2310 continue;
2311 }
2312 TopoDS_Wire wire = TopoDS::Wire ( wi.Value() );
2313 Handle(ShapeExtend_WireData) sewd = new ShapeExtend_WireData(wire);
2314 if(sewd->NbEdges()==2) {
2315 TopoDS_Edge E1 = sewd->Edge(1);
2316 TopoDS_Edge E2 = sewd->Edge(2);
2317 E1.Orientation(TopAbs_FORWARD);
2318 E2.Orientation(TopAbs_FORWARD);
2319 if( !(E1==E2) ) {
2320 B.Add(face,wire);
2321 }
2322 else isFixed = Standard_True;
2323 }
2324 else {
2325 B.Add(face,wire);
2326 }
2327 }
2328 if(isFixed) {
2329 face.Orientation(ori);
2330 if ( ! Context().IsNull() ) Context()->Replace ( myFace, face );
2331 myFace = face;
2332 }
2333
2334 return isFixed;
2335}
2336
2337
2338//=======================================================================
2339//function : FixSplitFace
2340//purpose :
2341//=======================================================================
2342
2343Standard_Boolean ShapeFix_Face::FixSplitFace(const TopTools_DataMapOfShapeListOfShape &MapWires)
2344{
2345 BRep_Builder B;
2346 TopTools_SequenceOfShape faces;
2347 TopoDS_Shape S = myFace;
2348 if ( ! Context().IsNull() )
2349 S = Context()->Apply ( myFace );
0f180c0c 2350 Standard_Integer NbWires=0, NbWiresNew=0, NbEdges;
7fd59977 2351 for(TopoDS_Iterator iter(S,Standard_False); iter.More(); iter.Next()) {
0f180c0c 2352 const TopoDS_Shape& aShape = iter.Value();
2353 if(aShape.ShapeType() != TopAbs_WIRE ||
2354 (aShape.Orientation() != TopAbs_FORWARD && aShape.Orientation() != TopAbs_REVERSED))
7fd59977 2355 continue;
0f180c0c 2356 TopoDS_Wire wire = TopoDS::Wire ( aShape );
7fd59977 2357 NbWires++;
2358 if(MapWires.IsBound(wire)) {
2359 // if wire not closed --> stop split and return false
2360 Handle(ShapeExtend_WireData) sewd = new ShapeExtend_WireData(wire);
0f180c0c 2361 NbEdges = sewd->NbEdges();
2362 if (NbEdges == 0) {
2363 continue;
2364 }
2365 //
7fd59977 2366 TopoDS_Edge E1 = sewd->Edge(1);
0f180c0c 2367 TopoDS_Edge E2 = sewd->Edge(NbEdges);
7fd59977 2368 TopoDS_Vertex V1,V2;
2369 ShapeAnalysis_Edge sae;
2370 V1=sae.FirstVertex(E1);
2371 V2=sae.LastVertex(E2);
2372 if(!V1.IsSame(V2)) {
2373 cout<<"wire not closed --> stop split"<<endl;
2374 return Standard_False;
2375 }
2376 // create face
2377 TopoDS_Shape emptyCopied = S.EmptyCopied();
2378 TopoDS_Face tmpFace = TopoDS::Face(emptyCopied);
2379 tmpFace.Orientation ( TopAbs_FORWARD );
2380 B.Add(tmpFace,wire);
2381 NbWiresNew++;
2382 const TopTools_ListOfShape& IntWires = MapWires.Find(wire);
2383 TopTools_ListIteratorOfListOfShape liter(IntWires);
2384 for( ; liter.More(); liter.Next()) {
77193183 2385 TopoDS_Shape aShape = tmpFace.EmptyCopied();
2386 TopoDS_Face aFace = TopoDS::Face ( aShape );
2387 aFace.Orientation ( TopAbs_FORWARD );
2388 B.Add (aFace,liter.Value());
2389 BRepTopAdaptor_FClass2d clas (aFace,::Precision::PConfusion());
2390 TopAbs_State staout = clas.PerformInfinitePoint();
2391 if (staout == TopAbs_IN)
2392 B.Add(tmpFace,liter.Value());
2393 else
2394 B.Add(tmpFace,liter.Value().Reversed());
7fd59977 2395 NbWiresNew++;
2396 }
2397 if(!myFwd) tmpFace.Orientation(TopAbs_REVERSED);
2398 faces.Append(tmpFace);
2399 }
2400 }
2401
2402 if(NbWires!=NbWiresNew) return Standard_False;
2403
2404 if(faces.Length()>1) {
2405 TopoDS_Compound Comp;
2406 B.MakeCompound(Comp);
2407 for(Standard_Integer i=1; i<=faces.Length(); i++ )
2408 B.Add(Comp,faces(i));
2409 myResult = Comp;
2410 Context()->Replace ( myFace, myResult );
2411 for (TopExp_Explorer exp ( myResult, TopAbs_FACE ); exp.More(); exp.Next() ) {
2412 myFace = TopoDS::Face ( exp.Current() );
2413 BRepTools::Update(myFace);
2414 }
2415 return Standard_True;
2416 }
2417
2418 return Standard_False;
2419}
84dc990a
S		 2420
2421//=======================================================================
2422//function : IsPeriodicConicalLoop
2423//purpose : Checks whether the passed wire makes up a periodic loop on
2424// passed conical surface
2425//=======================================================================
2426
2427static Standard_Boolean IsPeriodicConicalLoop(const Handle(Geom_ConicalSurface)& theSurf,
2428 const TopoDS_Wire& theWire,
2429 const Standard_Real theTolerance,
2430 Standard_Real& theMinU,
2431 Standard_Real& theMaxU,
2432 Standard_Real& theMinV,
2433 Standard_Real& theMaxV,
2434 Standard_Boolean& isUDecrease)
2435{
2436 if ( theSurf.IsNull() )
fdbc4fe7 2437 return Standard_False;
84dc990a
S		 2438
2439 ShapeAnalysis_Edge aSAE;
2440 TopLoc_Location aLoc;
2441
2442 Standard_Real aCumulDeltaU = 0.0, aCumulDeltaUAbs = 0.0;
2443 Standard_Real aMinU = RealLast();
2444 Standard_Real aMinV = aMinU;
2445 Standard_Real aMaxU = -aMinU;
2446 Standard_Real aMaxV = aMaxU;
2447
2448 // Iterate over the edges to check whether the wire is periodic on conical surface
46aed280 2449 TopoDS_Iterator aWireIter(theWire, Standard_False);
2450 for ( ; aWireIter.More(); aWireIter.Next() )
84dc990a 2451 {
46aed280 2452 const TopoDS_Edge& aCurrentEdge = TopoDS::Edge(aWireIter.Value());
84dc990a
S		 2453 Handle(Geom2d_Curve) aC2d;
2454 Standard_Real aPFirst, aPLast;
2455
2456 aSAE.PCurve(aCurrentEdge, theSurf, aLoc, aC2d, aPFirst, aPLast, Standard_True);
2457
2458 if ( aC2d.IsNull() )
2459 return Standard_False;
2460
2461 gp_Pnt2d aUVFirst = aC2d->Value(aPFirst),
2462 aUVLast = aC2d->Value(aPLast);
2463
2464 Standard_Real aUFirst = aUVFirst.X(), aULast = aUVLast.X();
2465 Standard_Real aVFirst = aUVFirst.Y(), aVLast = aUVLast.Y();
2466
2467 Standard_Real aCurMaxU = Max(aUFirst, aULast),
2468 aCurMinU = Min(aUFirst, aULast);
2469 Standard_Real aCurMaxV = Max(aVFirst, aVLast),
2470 aCurMinV = Min(aVFirst, aVLast);
2471
2472 if ( aCurMinU < aMinU )
2473 aMinU = aCurMinU;
2474 if ( aCurMaxU > aMaxU )
2475 aMaxU = aCurMaxU;
2476 if ( aCurMinV < aMinV )
2477 aMinV = aCurMinV;
2478 if ( aCurMaxV > aMaxV )
2479 aMaxV = aCurMaxV;
2480
2481 Standard_Real aDeltaU = aULast - aUFirst;
2482
2483 aCumulDeltaU += aDeltaU;
2484 aCumulDeltaUAbs += Abs(aDeltaU);
2485 }
2486
2487 theMinU = aMinU;
2488 theMaxU = aMaxU;
2489 theMinV = aMinV;
2490 theMaxV = aMaxV;
2491 isUDecrease = (aCumulDeltaU < 0 ? Standard_True : Standard_False);
2492
2493 Standard_Boolean is2PIDelta = Abs(aCumulDeltaUAbs - 2*M_PI) <= theTolerance;
2494 Standard_Boolean isAroundApex = Abs(theMaxU - theMinU) > 2*M_PI - theTolerance;
2495
2496 return is2PIDelta && isAroundApex;
2497}
2498
2499//=======================================================================
2500//function : FixPeriodicDegenerated
2501//purpose :
2502//=======================================================================
2503
2504Standard_Boolean ShapeFix_Face::FixPeriodicDegenerated()
2505{
2506 /* =====================
2507 * Prepare fix routine
2508 * ===================== */
2509
2510 if ( !Context().IsNull() )
2511 {
2512 TopoDS_Shape aSh = Context()->Apply(myFace);
2513 myFace = TopoDS::Face(aSh);
2514 }
2515
2516 /* ================================================
2517 * Check if fix can be applied on the passed face
2518 * ================================================ */
2519
2520 // Collect all wires owned by the face
2521 TopTools_SequenceOfShape aWireSeq;
2522 for ( TopoDS_Iterator aWireIt(myFace, Standard_False); aWireIt.More(); aWireIt.Next() )
2523 {
2524 const TopoDS_Shape& aSubSh = aWireIt.Value();
2525 if ( aSubSh.ShapeType() != TopAbs_WIRE || ( aSubSh.Orientation() != TopAbs_FORWARD &&
2526 aSubSh.Orientation() != TopAbs_REVERSED ) )
2527 continue;
2528
2529 aWireSeq.Append( aWireIt.Value() );
2530 }
2531
2532 // Get number of wires and surface
2533 Standard_Integer aNbWires = aWireSeq.Length();
2534 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(myFace);
2535
2536 // Only single wires on conical surfaces are checked
2537 if ( aNbWires != 1 || aSurface.IsNull() ||
2538 aSurface->DynamicType() != STANDARD_TYPE(Geom_ConicalSurface) )
2539 return Standard_False;
2540
2541 // Get the single wire
2542 TopoDS_Wire aSoleWire = TopoDS::Wire( aWireSeq.Value(1) );
2543
2544 // Check whether this wire is belting the conical surface by period
2545 Handle(Geom_ConicalSurface) aConeSurf = Handle(Geom_ConicalSurface)::DownCast(aSurface);
2546 Standard_Real aMinLoopU = 0.0, aMaxLoopU = 0.0, aMinLoopV = 0.0, aMaxLoopV = 0.0;
2547 Standard_Boolean isUDecrease = Standard_False;
2548
2549 Standard_Boolean isConicLoop = IsPeriodicConicalLoop(aConeSurf, aSoleWire, Precision(),
2550 aMinLoopU, aMaxLoopU,
2551 aMinLoopV, aMaxLoopV,
2552 isUDecrease);
2553
2554 if ( !isConicLoop )
2555 return Standard_False;
2556
2557 /* ===============
2558 * Retrieve apex
2559 * =============== */
2560
2561 // Get base circle of the conical surface (the circle it was built from)
2562 Handle(Geom_Curve) aConeBaseCrv = aConeSurf->VIso(0.0);
2563 Handle(Geom_Circle) aConeBaseCirc = Handle(Geom_Circle)::DownCast(aConeBaseCrv);
2564
2565 // Retrieve conical props
2566 Standard_Real aConeBaseR = aConeBaseCirc->Radius();
2567 Standard_Real aSemiAngle = aConeSurf->SemiAngle();
2568
2569 if ( fabs(aSemiAngle) <= Precision::Confusion() )
2570 return Standard_False; // Bad surface
2571
2572 // Find the V parameter of the apex
2573 Standard_Real aConeBaseH = aConeBaseR / Sin(aSemiAngle);
2574 Standard_Real anApexV = -aConeBaseH;
2575
2576 // Get apex vertex
2577 TopoDS_Vertex anApex = BRepBuilderAPI_MakeVertex( aConeSurf->Apex() );
2578
2579 // ====================================
2580 // Build degenerated edge in the apex
2581 // ====================================
2582
2583 TopoDS_Edge anApexEdge;
2584 BRep_Builder aBuilder;
2585 aBuilder.MakeEdge(anApexEdge);
2586
2587 // Check if positional relationship between the initial wire and apex
2588 // line in 2D is going to be consistent
2589 if ( fabs(anApexV - aMinLoopV) <= Precision() ||
2590 fabs(anApexV - aMaxLoopV) <= Precision() ||
2591 ( anApexV < aMaxLoopV && anApexV > aMinLoopV ) )
2592 return Standard_False;
2593
2594 Handle(Geom2d_Line) anApexCurve2d;
2595
2596 // Apex curve below the wire
2597 if ( anApexV < aMinLoopV )
2598 {
2599 anApexCurve2d = new Geom2d_Line( gp_Pnt2d(aMinLoopU, anApexV), gp_Dir2d(1, 0) );
2600 if ( !isUDecrease )
2601 aSoleWire.Reverse();
2602 }
2603
2604 // Apex curve above the wire
2605 if ( anApexV > aMaxLoopV )
2606 {
2607 anApexCurve2d = new Geom2d_Line( gp_Pnt2d(aMaxLoopU, anApexV), gp_Dir2d(-1, 0) );
2608 if ( isUDecrease )
2609 aSoleWire.Reverse();
2610 }
2611
2612 // Create degenerated edge & wire for apex
2613 aBuilder.UpdateEdge( anApexEdge, anApexCurve2d, myFace, Precision() );
2614 aBuilder.Add( anApexEdge, anApex );
2615 aBuilder.Add( anApexEdge, anApex.Reversed() );
2616 aBuilder.Degenerated(anApexEdge, Standard_True);
2617 aBuilder.Range( anApexEdge, 0, fabs(aMaxLoopU - aMinLoopU) );
2618 TopoDS_Wire anApexWire = BRepBuilderAPI_MakeWire(anApexEdge);
2619
2620 // ===============================================================
2621 // Finalize the fix building new face and setting up the results
2622 // ===============================================================
2623
2624 // Collect the resulting set of wires
2625 TopTools_SequenceOfShape aNewWireSeq;
2626 aNewWireSeq.Append(aSoleWire);
2627 aNewWireSeq.Append(anApexWire);
2628
2629 // Assemble new face
2630 TopoDS_Face aNewFace = TopoDS::Face( myFace.EmptyCopied() );
2631 aNewFace.Orientation(TopAbs_FORWARD);
2632 BRep_Builder aFaceBuilder;
2633 for ( Standard_Integer i = 1; i <= aNewWireSeq.Length(); i++ )
2634 {
2635 TopoDS_Wire aNewWire = TopoDS::Wire( aNewWireSeq.Value(i) );
2636 aFaceBuilder.Add(aNewFace, aNewWire);
2637 }
2638 aNewFace.Orientation( myFace.Orientation() );
2639
2640 // Adjust the resulting state of the healing tool
2641 myResult = aNewFace;
2642 Context()->Replace(myFace, myResult);
2643
2644 return Standard_True;
2645}
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