1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and/or modify it under
6 // the terms of the GNU Lesser General Public License version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
14 //:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586:
15 // in FixIntersectingEdges, do not cut edges because of influence on adjacent faces
16 // pdn 17.12.98: shifting whole wire in FixShifted
17 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: removing self-int loops on pcurves
18 // pdn 30.12.98: PRO10366 #210: shifting pcurve between two singularities
19 // pdn 05.01.98: renaming method FixLittle to FixSmall
20 //:l0 abv 10.01.99: remove unused code
21 //:n2 abv 22.01.99: ma-test5.igs: IGES read (pref3d): remove degen edge with no pcurve
22 //:o4 abv 17.02.99: r0301_db.stp #53082: using parameter isClosed in CheckOrder
23 //:p4 abv 23.02.99: PRO9234 #15720: update UV points of edges after shifting pcurves
24 //#67 rln 01.03.99 S4135: ims010.igs treatment of Geom_SphericalSurface together with V-closed surfaces
25 //:p7 abv 10.03.99 PRO18206: using method IsDegenerated() to detect singularity in FixLacking
26 //:r0 abv 19.03.99 PRO7226.stp #489490: remove degenerated edges if several
27 //#78 rln 12.03.99 S4135: checking spatial closure with Precision
28 //#79 rln 15.03.99 S4135: bmarkmdl.igs: check for gap before shifting on singularities
29 // pdn 17.03.99 S4135: implemented fixing not adjacent intersection
30 //#86 rln 22.03.99 S4135: repeat of fix self-intersection if it was fixed just before
31 //%15 pdn 06.04.99 CTS18546-2: fix of self-intersection is repeated while fixed
32 //#3 smh 01.04.99 S4163: Overflow
33 //#4 szv S4163: optimization
34 //:r7 abv 12.04.99 S4136: FixLk: extend cases of adding degenerated edge
35 //:r8 abv 12.04.99 PRO10107.stp #2241: try increasing tolerance of edge for fix IE
36 //:s2 abv 21.04.99 S4136, PRO7978.igs: FixLacking extended to be able to bend pcurves
37 //szv#9:S4244:19Aug99 Methods FixGaps3d and FixGaps2d were introduced
38 //#15 smh 03.04.2000 PRO19800. Checking degenerated point on a surface of revolution.
39 // sln 25.09.2001 checking order of 3d and 2d representation curves
40 // van 19.10.2001 fix of non-adjacent self-intersection corrected to agree with BRepCheck
41 // skl 07.03.2002 fix for bug OCC180
42 // skl 15.05.2002 for OCC208 (if few edges have reference to
43 // one pcurve we make replace pcurve)
44 // PTV 26.06.2002 Remove regressions after fix OCC450
46 #include <ShapeFix_Wire.ixx>
48 #include <Standard_ErrorHandler.hxx>
49 #include <Standard_Failure.hxx>
50 #include <TColStd_Array1OfReal.hxx>
51 #include <TColStd_Array1OfInteger.hxx>
52 #include <Precision.hxx>
54 #include <Geom_Curve.hxx>
55 #include <Geom_TrimmedCurve.hxx>
56 #include <Geom_BSplineCurve.hxx>
57 #include <Geom_SphericalSurface.hxx> //S4135
58 #include <Geom_SurfaceOfRevolution.hxx>
59 #include <GeomAdaptor_Curve.hxx>
60 #include <GeomAdaptor_HSurface.hxx>
61 #include <GeomAdaptor_Surface.hxx>
62 #include <GeomConvert_CompCurveToBSplineCurve.hxx>
63 #include <GeomAPI.hxx>
65 #include <Geom2d_Curve.hxx>
66 #include <Geom2d_TrimmedCurve.hxx>
67 #include <Geom2d_Line.hxx>
68 #include <Geom2d_BSplineCurve.hxx>
69 #include <Geom2dAdaptor_Curve.hxx>
70 #include <Geom2dConvert.hxx>
72 #include <Bnd_Box2d.hxx>
73 #include <Bnd_Array1OfBox2d.hxx>
74 #include <BndLib_Add2dCurve.hxx>
75 #include <IntRes2d_SequenceOfIntersectionPoint.hxx>
76 #include <IntRes2d_IntersectionPoint.hxx>
77 #include <TColgp_Array1OfPnt.hxx>
78 #include <TColgp_SequenceOfPnt.hxx>
82 #include <TopoDS_Vertex.hxx>
83 #include <TopoDS_Edge.hxx>
84 #include <TopTools_Array1OfShape.hxx>
85 #include <TopTools_HSequenceOfShape.hxx>
86 #include <TopExp_Explorer.hxx>
88 #include <BRep_Tool.hxx>
89 #include <BRep_Builder.hxx>
90 #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
91 #include <BRep_TEdge.hxx>
92 #include <BRep_GCurve.hxx>
93 #include <BRepBuilderAPI_MakeEdge.hxx>
94 #include <BRepBuilderAPI_MakeVertex.hxx>
95 #include <BRepTools.hxx>
97 #include <Message_Msg.hxx>
98 #include <ShapeExtend.hxx>
99 #include <ShapeBuild_Edge.hxx>
100 #include <ShapeBuild_Vertex.hxx>
101 #include <ShapeBuild_ReShape.hxx>
102 #include <ShapeAnalysis_Curve.hxx>
103 #include <ShapeAnalysis_Edge.hxx>
104 #include <ShapeAnalysis_Surface.hxx>
105 #include <ShapeAnalysis.hxx>
106 #include <ShapeConstruct_ProjectCurveOnSurface.hxx>
107 #include <ShapeAnalysis_TransferParametersProj.hxx>
108 #include <Geom_Plane.hxx>
109 #include <Geom_OffsetCurve.hxx>
111 #include <TColStd_HSequenceOfReal.hxx>
112 #include <Adaptor3d_CurveOnSurface.hxx>
113 #include <Geom2dAdaptor_HCurve.hxx>
114 #include <GeomAPI_ProjectPointOnCurve.hxx>
116 #include <ShapeAnalysis_TransferParameters.hxx>
117 #include <ShapeFix.hxx>
118 #include <ShapeFix_IntersectionTool.hxx>
119 #include <ShapeFix_SplitTool.hxx>
122 //#######################################################################
123 // Constructors, initializations, modes, querying
124 //#######################################################################
126 //=======================================================================
127 //function : ShapeFix_Wire
129 //=======================================================================
131 ShapeFix_Wire::ShapeFix_Wire()
133 myFixEdge = new ShapeFix_Edge;
134 myAnalyzer = new ShapeAnalysis_Wire;
137 myStatusRemovedSegment = Standard_False;
140 //=======================================================================
141 //function : ShapeFix_Wire
143 //=======================================================================
145 ShapeFix_Wire::ShapeFix_Wire (const TopoDS_Wire& wire,
146 const TopoDS_Face &face, const Standard_Real prec)
148 myFixEdge = new ShapeFix_Edge;
149 myAnalyzer = new ShapeAnalysis_Wire;
151 SetMaxTolerance ( prec );
152 myStatusRemovedSegment = Standard_False;
153 Init ( wire, face, prec );
156 //=======================================================================
157 //function : SetPrecision
159 //=======================================================================
161 void ShapeFix_Wire::SetPrecision (const Standard_Real prec)
163 ShapeFix_Root::SetPrecision ( prec );
164 myAnalyzer->SetPrecision ( prec );
167 //=======================================================================
168 //function : ClearModes
170 //=======================================================================
172 void ShapeFix_Wire::ClearModes()
174 myTopoMode = Standard_False;
175 myGeomMode = Standard_True;
176 myClosedMode = Standard_True;
177 myPreference2d = Standard_True;
178 myFixGapsByRanges = Standard_False;
180 myRemoveLoopMode = -1;
182 myFixReversed2dMode = -1;
183 myFixRemovePCurveMode = -1;
184 myFixRemoveCurve3dMode = -1;
185 myFixAddPCurveMode = -1;
186 myFixAddCurve3dMode = -1;
188 myFixShiftedMode = -1;
189 myFixSameParameterMode = -1;
190 myFixVertexToleranceMode = -1;
192 myFixNotchedEdgesMode = -1;
193 myFixSelfIntersectingEdgeMode = -1;
194 myFixIntersectingEdgesMode = -1;
195 myFixNonAdjacentIntersectingEdgesMode = -1;
197 myFixReorderMode = -1;
199 myFixConnectedMode = -1;
200 myFixEdgeCurvesMode = -1;
201 myFixDegeneratedMode = -1;
202 myFixSelfIntersectionMode = -1;
203 myFixLackingMode = -1;
204 myFixGaps3dMode = -1;
205 myFixGaps2dMode = -1;
208 //=======================================================================
209 //function : ClearStatuses
211 //=======================================================================
213 void ShapeFix_Wire::ClearStatuses()
215 Standard_Integer emptyStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
217 myLastFixStatus = emptyStatus;
219 myStatusReorder = emptyStatus;
220 myStatusSmall = emptyStatus;
221 myStatusConnected = emptyStatus;
222 myStatusEdgeCurves = emptyStatus;
223 myStatusDegenerated = emptyStatus;
224 myStatusSelfIntersection = emptyStatus;
225 myStatusLacking = emptyStatus;
226 myStatusGaps3d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
227 myStatusGaps2d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
228 myStatusClosed = emptyStatus;
231 //=======================================================================
234 //=======================================================================
236 void ShapeFix_Wire::Init (const TopoDS_Wire& wire,
237 const TopoDS_Face &face, const Standard_Real prec)
241 SetPrecision ( prec );
244 //=======================================================================
247 //=======================================================================
249 void ShapeFix_Wire::Init (const Handle(ShapeAnalysis_Wire)& saw)
254 // SetPrecision ( saw.Precision() );
257 //=======================================================================
260 //=======================================================================
262 void ShapeFix_Wire::Load (const TopoDS_Wire& wire)
266 TopoDS_Wire W = wire;
267 if ( ! Context().IsNull() ) {
268 TopoDS_Shape S = Context()->Apply ( wire );
269 W = TopoDS::Wire ( S );
272 myAnalyzer->Load ( W );
276 //=======================================================================
279 //=======================================================================
281 void ShapeFix_Wire::Load (const Handle(ShapeExtend_WireData)& sbwd)
284 myAnalyzer->Load ( sbwd );
285 if ( ! Context().IsNull() ) UpdateWire();
289 //=======================================================================
292 //=======================================================================
294 Standard_Integer ShapeFix_Wire::NbEdges() const
296 Handle(ShapeExtend_WireData) sbwd = myAnalyzer->WireData();
297 return sbwd.IsNull() ? 0 : sbwd->NbEdges();
300 //#######################################################################
301 // Fixing methods of API level
302 //#######################################################################
304 //=======================================================================
306 //purpose : This method performs all the available fixes.
307 // If some fix is turned on or off explicitly by the flag,
308 // it is called or not depending on that flag
309 // Else (i.e. if flag is default) fix is called depending on the
310 // situation: default is True, but some fixes are not called or
311 // are limited if order of edges in the wire is not OK
312 //=======================================================================
314 Standard_Boolean ShapeFix_Wire::Perform()
317 if ( ! IsLoaded() ) return Standard_False;
320 Standard_Integer Fixed = Standard_False;
322 // FixReorder is first, because as a rule wire is required to be ordered
323 // We shall analyze the order of edges in the wire and set appropriate
324 // status even if FixReorder should not be called (if it is forbidden)
326 ShapeAnalysis_WireOrder sawo;
327 Standard_Boolean ReorderOK = ( myAnalyzer->CheckOrder ( sawo, myClosedMode ) ==0 );
328 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
329 if(FixReorder()) Fixed = Standard_True;
330 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
333 // FixSmall is allowed to change topology only if mode is set and FixReorder
335 if ( NeedFix ( myFixSmallMode, myTopoMode ) ) {
336 if ( FixSmall ( ! myTopoMode || ! ReorderOK, MinTolerance() ) ) {
337 Fixed = Standard_True;
338 // retry reorder if necessary (after FixSmall it can work better)
339 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
341 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
346 if ( NeedFix ( myFixConnectedMode, ReorderOK ) ) {
347 if ( FixConnected() ) Fixed = Standard_True;
350 if ( NeedFix ( myFixEdgeCurvesMode ) ) {
351 Standard_Integer savFixShiftedMode = myFixShiftedMode;
352 // turn out FixShifted if reorder not done
353 if ( myFixShiftedMode == -1 && ! ReorderOK ) myFixShiftedMode = 0;
354 if ( FixEdgeCurves() ) Fixed = Standard_True;
355 myFixShiftedMode = savFixShiftedMode;
358 if ( NeedFix ( myFixDegeneratedMode ) ) {
359 if ( FixDegenerated() ) Fixed = Standard_True; // ?? if ! ReorderOK ??
362 //pdn - temporary to test
363 if ( NeedFix ( myFixNotchedEdgesMode, ReorderOK ) ) {
364 Fixed |= FixNotchedEdges();
365 if(Fixed) FixShifted(); //skl 07.03.2002 for OCC180
368 if ( NeedFix ( myFixSelfIntersectionMode, myClosedMode ) ) {
369 Standard_Integer savFixIntersectingEdgesMode = myFixIntersectingEdgesMode;
370 // switch off FixIntEdges if reorder not done
371 if ( myFixIntersectingEdgesMode == -1 && ! ReorderOK )
372 myFixIntersectingEdgesMode = 0;
373 if ( FixSelfIntersection() ) Fixed = Standard_True;
375 myFixIntersectingEdgesMode = savFixIntersectingEdgesMode;
378 if ( NeedFix ( myFixLackingMode, ReorderOK ) ) {
379 if ( FixLacking() ) Fixed = Standard_True;
382 // TEMPORARILY without special mode !!!
383 Handle(ShapeExtend_WireData) sbwd = WireData();
384 for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++)
385 if ( myFixEdge->FixVertexTolerance (sbwd->Edge (iedge)) )
386 Fixed = Standard_True;
391 //=======================================================================
392 //function : FixReorder
394 //=======================================================================
396 Standard_Boolean ShapeFix_Wire::FixReorder()
398 myStatusReorder = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
399 if ( ! IsLoaded() ) return Standard_False;
402 ShapeAnalysis_WireOrder sawo;
403 myAnalyzer->CheckOrder ( sawo, myClosedMode, Standard_True );
405 //:abv revolCuts.sat -23: in case of bi-periodic surface check case
406 // of reversed wire specifically. This is necessary because degenerated
407 // cases are possible when direct evaluation will give bad result.
408 Standard_Boolean isReorder = Standard_False;
409 if ( sawo.Status() != 0 &&
410 ! myAnalyzer->Surface().IsNull() &&
411 myAnalyzer->Surface()->Surface()->IsUPeriodic() &&
412 myAnalyzer->Surface()->Surface()->IsVPeriodic() ) {
413 Handle(ShapeExtend_WireData) sbwd2 = new ShapeExtend_WireData;
414 for ( Standard_Integer i=WireData()->NbEdges(); i >=1; i-- )
415 sbwd2->Add ( WireData()->Edge(i) );
416 ShapeAnalysis_WireOrder sawo2;
417 ShapeAnalysis_Wire analyzer2 ( sbwd2, myAnalyzer->Face(), Precision() );
418 analyzer2.CheckOrder ( sawo2, myClosedMode, Standard_True );
419 if ( ( sawo2.Status() >=0 && sawo2.Status() < sawo.Status() ) ||
420 ( sawo.Status() <0 && sawo2.Status() > sawo.Status() ) ) {
421 WireData()->Init ( sbwd2 );
423 isReorder = Standard_True;
429 if ( LastFixStatus ( ShapeExtend_FAIL ) )
430 myStatusReorder |= ShapeExtend::EncodeStatus ( LastFixStatus ( ShapeExtend_FAIL1 ) ?
431 ShapeExtend_FAIL1 : ShapeExtend_FAIL2 );
432 if ( ! LastFixStatus ( ShapeExtend_DONE )&& !isReorder ) return Standard_False;
434 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
435 if ( sawo.Status() ==2 || sawo.Status() ==-2 )
436 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
437 if ( sawo.Status() <0 )
438 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
439 if ( sawo.Status() == 3)
440 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//only shifted
441 return Standard_True;
444 //=======================================================================
445 //function : FixSmall
447 //=======================================================================
449 Standard_Integer ShapeFix_Wire::FixSmall (const Standard_Boolean lockvtx,
450 const Standard_Real precsmall)
452 myStatusSmall = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
453 if ( ! IsLoaded() ) return Standard_False;
455 for ( Standard_Integer i = NbEdges(); i >0; i-- ) {
456 FixSmall ( i, lockvtx, precsmall );
457 myStatusSmall |= myLastFixStatus;
460 return StatusSmall ( ShapeExtend_DONE );
464 //=======================================================================
465 //function : FixConnected
467 //=======================================================================
469 Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Real prec)
471 myStatusConnected = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
472 if ( ! IsLoaded() ) return Standard_False;
474 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
475 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
476 FixConnected ( i, prec );
477 myStatusConnected |= myLastFixStatus;
480 return StatusConnected ( ShapeExtend_DONE );
483 //=======================================================================
484 //function : FixEdgeCurves
486 //=======================================================================
488 Standard_Boolean ShapeFix_Wire::FixEdgeCurves()
490 myStatusEdgeCurves = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
491 if ( ! IsLoaded() ) return Standard_False;
492 Standard_Boolean isReady = IsReady();
494 Handle(ShapeExtend_WireData) sbwd = WireData();
495 Standard_Integer i, nb = sbwd->NbEdges();
496 TopoDS_Face face = Face();
497 Handle(ShapeFix_Edge) theAdvFixEdge = Handle(ShapeFix_Edge)::DownCast(myFixEdge);
498 if (theAdvFixEdge.IsNull()) myFixReversed2dMode = Standard_False;
500 // fix revesred 2d / 3d curves
501 if ( isReady && NeedFix ( myFixReversed2dMode ) ) {
502 for ( i=1; i <= nb; i++ ) {
503 theAdvFixEdge->FixReversed2d ( sbwd->Edge(i), face );
504 if ( theAdvFixEdge->Status ( ShapeExtend_DONE ) )
505 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
506 if ( theAdvFixEdge->Status ( ShapeExtend_FAIL ) )
507 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
511 // add / remove pcurve
512 if ( isReady && NeedFix ( myFixRemovePCurveMode, Standard_False ) ) {
513 for ( i=1; i <= nb; i++ ) {
514 myFixEdge->FixRemovePCurve ( sbwd->Edge(i), face );
515 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
516 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
517 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
518 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
522 if ( isReady && NeedFix ( myFixAddPCurveMode ) ) {
523 Standard_Integer overdegen = 0; //:c0
524 for ( i=1; i <= nb; i++ ) {
525 myFixEdge->FixAddPCurve ( sbwd->Edge(i), face, sbwd->IsSeam(i),
526 myAnalyzer->Surface(), Precision() );
527 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
528 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
529 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
530 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
532 //if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 )
533 // && BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
534 if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 ) ) {
535 // abv 24 Feb 00: trj3_s1-ac-214.stp #1631 etc.: try to split the edge in singularity
536 if ( ! Context().IsNull() ) {
538 TopoDS_Edge E = sbwd->Edge ( i );
539 ShapeAnalysis_Curve SAC;
541 Handle(Geom_Curve) C = BRep_Tool::Curve ( E, a, b );
542 Handle(ShapeAnalysis_Surface) S = myAnalyzer->Surface();
543 Standard_Integer nbs = S->NbSingularities(MinTolerance());
544 GeomAdaptor_Curve GAC ( C, a, b );
545 TColStd_SequenceOfReal seq;
546 for (Standard_Integer j=1; j <= nbs; j++) {
550 Standard_Real par1, par2, split;
551 Standard_Boolean tmpUIsoDeg;
552 S->Singularity (j, Preci, P3d, pd1, pd2, par1, par2, tmpUIsoDeg);
553 if ( SAC.Project ( GAC, P3d, MinTolerance(), pr, split, Standard_True ) < Max(Preci,MinTolerance()) ) {
554 if ( split - a > ::Precision::PConfusion() &&
555 b - split > ::Precision::PConfusion() ) {
557 for ( k=1; k <= seq.Length(); k++ ) {
558 if ( split < seq(k)-::Precision::PConfusion() ) {
559 seq.InsertBefore ( k, split );
562 else if ( split < seq(k)+::Precision::PConfusion() ) break;
564 if ( k > seq.Length() ) seq.Append ( split );
568 if ( seq.Length() >0 ) { // supposed that edge is SP
570 cout << "Edge going over singularity detected; splitted" << endl;
572 Standard_Boolean isFwd = ( E.Orientation() == TopAbs_FORWARD );
573 E.Orientation ( TopAbs_FORWARD );
575 //if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
576 // sbe.RemovePCurve ( E, face );
578 //10.04.2003 skl for using trimmed lines as pcurves
579 ShapeAnalysis_Edge sae;
580 if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
581 sbe.RemovePCurve ( E, face );
583 if(sae.HasPCurve(E,face)) {
584 Handle(Geom2d_Curve) C2d;
585 Standard_Real fp2d,lp2d;
586 if(sae.PCurve(E,face,C2d,fp2d,lp2d)) {
587 if( !C2d->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)) )
588 sbe.RemovePCurve(E,face);
593 // myFixEdge->FixSameParameter ( E ); // to ensure SameRange & SP
595 TopoDS_Vertex V1, V2, V;
596 //ShapeAnalysis_Edge sae;
597 V1 = sae.FirstVertex ( E );
598 V2 = sae.LastVertex ( E );
599 Handle(ShapeExtend_WireData) sw = new ShapeExtend_WireData;
600 for ( Standard_Integer k=0; k <= seq.Length(); k++ ) {
601 Standard_Real split = ( k < seq.Length() ? seq(k+1) : b );
602 if ( k < seq.Length() )
603 B.MakeVertex ( V, C->Value(split), BRep_Tool::Tolerance(E) );
605 TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
606 if( BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
607 //TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
608 B.Range ( edge, a, split );
612 //TopoDS_Edge edge = sbe.CopyReplaceVertices(sbwd->Edge(i),V1,V);
613 Handle(ShapeAnalysis_TransferParameters) sftp =
614 new ShapeAnalysis_TransferParameters(E,face);
615 sftp->TransferRange(edge, a, split, Standard_False);
624 E.Orientation ( TopAbs_REVERSED );
626 Context()->Replace ( E, sw->Wire() );
628 nb = sbwd->NbEdges();
638 //:c0 abv 20 Feb 98: treat case of curve going over degenerated pole and seam
639 if ( overdegen && myAnalyzer->Surface()->IsUClosed(Precision()) ) {
641 Standard_Real URange, SUF, SUL, SVF, SVL;
642 myAnalyzer->Surface()->Bounds(SUF, SUL, SVF, SVL);
643 URange = (Abs(SUL - SUF));
645 ShapeAnalysis_Edge sae;
647 for ( k = 1; k <= nb; k++) {
648 Standard_Real cf, cl;
649 Handle(Geom2d_Curve) c2d;
650 if ( ! sae.PCurve ( sbwd->Edge(k), face, c2d, cf, cl, Standard_True ) ) break;
651 vec += c2d->Value(cl).XY() - c2d->Value(cf).XY();
653 if ( k > nb && Abs ( Abs ( vec.X() ) - URange ) < 0.1 * URange ) {
654 sbe.RemovePCurve (sbwd->Edge ( overdegen ), face);
655 myFixEdge->Projector()->AdjustOverDegenMode() = Standard_False;
656 myFixEdge->FixAddPCurve ( sbwd->Edge(overdegen), face, sbwd->IsSeam(overdegen), myAnalyzer->Surface(), Precision());
659 cout << "Edge going over singularity detected; pcurve adjusted" << endl;
664 // add / remove pcurve
665 if ( isReady && NeedFix ( myFixRemoveCurve3dMode, Standard_False ) ) {
666 for ( i=1; i <= nb; i++ ) {
667 myFixEdge->FixRemoveCurve3d ( sbwd->Edge(i) );
668 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
669 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
670 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
671 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
674 if ( NeedFix ( myFixAddCurve3dMode ) ) {
675 for ( i=1; i <= nb; i++ ) {
676 myFixEdge->FixAddCurve3d ( sbwd->Edge(i) );
677 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
678 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
679 if ( myFixEdge->Status ( ShapeExtend_FAIL ) ) {
680 //:abv 29.08.01: Spatial_firex_lofting.sat: if 3d curve cannot
681 // be built because edge has no pcurves either, remove that edge
682 Handle(Geom2d_Curve) C;
683 Handle(Geom_Surface) S;
685 Standard_Real first = 0., last = 0.;
686 BRep_Tool::CurveOnSurface ( sbwd->Edge(i), C, S, L, first, last );
687 if ( C.IsNull() || Abs (last - first) < Precision::PConfusion())
689 SendWarning ( sbwd->Edge ( i ), Message_Msg ( "FixWire.FixCurve3d.Removed" ) );// Incomplete edge (with no pcurves or 3d curve) removed
690 sbwd->Remove ( i-- );
692 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
693 FixConnected (i + 1, Precision());
695 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL5 );
701 if ( isReady && NeedFix ( myFixSeamMode, Standard_False ) ) {
702 for ( i=1; i <= nb; i++ ) {
704 if ( LastFixStatus ( ShapeExtend_DONE ) )
705 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
706 if ( LastFixStatus ( ShapeExtend_FAIL ) )
707 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL6 );
712 if ( isReady && NeedFix ( myFixShiftedMode ) ) {
714 if ( LastFixStatus ( ShapeExtend_DONE ) )
715 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
716 if ( LastFixStatus ( ShapeExtend_FAIL ) )
717 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL7 );
720 // fix same parameter
721 if ( isReady && NeedFix ( myFixSameParameterMode ) ) {
722 for ( i=1; i <= nb; i++ ) {
723 // skl 28.10.2004 for OCC6366 - check SameRange
724 ShapeAnalysis_Edge sae;
725 Standard_Real First, Last;
726 Handle(Geom_Curve) tmpc3d = BRep_Tool::Curve(sbwd->Edge(i), First, Last);
727 if(sae.HasPCurve(sbwd->Edge(i),face)) {
728 Handle(Geom2d_Curve) C2d;
729 Standard_Real fp2d,lp2d;
730 if(sae.PCurve(sbwd->Edge(i),face,C2d,fp2d,lp2d)) {
731 if( fabs(First-fp2d)>Precision::PConfusion() ||
732 fabs(Last-fp2d)>Precision::PConfusion() ) {
734 B.SameRange(sbwd->Edge(i),Standard_False);
738 myFixEdge->FixSameParameter ( sbwd->Edge(i) );
739 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
740 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
741 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
742 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
746 //:abv 10.06.02: porting C40 -> dev (CC670-12608.stp): moved from Perform()
747 // Update with face is needed for plane surfaces (w/o stored pcurves)
748 if ( NeedFix ( myFixVertexToleranceMode ) ) {
749 for ( i=1; i <= nb; i++) {
750 myFixEdge->FixVertexTolerance (sbwd->Edge (i), face);
751 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
752 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
753 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
754 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
758 return StatusEdgeCurves ( ShapeExtend_DONE );
761 //=======================================================================
762 //function : FixDegenerated
764 //=======================================================================
766 Standard_Boolean ShapeFix_Wire::FixDegenerated()
768 myStatusDegenerated = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
769 if ( ! IsReady() ) return Standard_False;
771 // if ( ! myAnalyzer->Surface()->HasSingularities ( Precision() ) ) return;
773 Standard_Integer lastcoded = -1, prevcoded = 0;
774 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
775 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
776 FixDegenerated ( i );
777 myStatusDegenerated |= myLastFixStatus;
778 //:r0 abv 19 Mar 99: PRO7226.stp #489490: remove duplicated degenerated edges
779 Standard_Integer coded = ( LastFixStatus ( ShapeExtend_DONE2 ) ? 1 : 0 );
780 if ( lastcoded ==-1 ) lastcoded = coded;
781 if ( coded && ( prevcoded || ( i ==1 && lastcoded ) ) && NbEdges() >1 ) {
782 Handle(ShapeExtend_WireData) sbwd = WireData();
785 if ( ! prevcoded ) i = NbEdges();
786 B.Degenerated ( sbwd->Edge ( i++ ), Standard_False );
789 else prevcoded = coded;
792 return StatusDegenerated ( ShapeExtend_DONE );
796 //=======================================================================
797 //function : FixSelfIntersection
798 //purpose : Applies FixSelfIntersectingEdge and FixIntersectingEdges
799 // and removes wrong edges
800 //=======================================================================
802 Standard_Boolean ShapeFix_Wire::FixSelfIntersection()
804 myStatusSelfIntersection = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
805 if ( ! IsReady() ) return Standard_False;
807 Handle(ShapeExtend_WireData) sbwd = WireData();
808 Standard_Integer nb = sbwd->NbEdges();
810 if ( NeedFix ( myFixSelfIntersectingEdgeMode ) ) {
811 if (myRemoveLoopMode<1)
812 for ( Standard_Integer num=1; num <=nb; num++ )
814 FixSelfIntersectingEdge ( num );
815 myStatusSelfIntersection |= myLastFixStatus;
817 else if (myRemoveLoopMode==1)
819 for ( Standard_Integer num=1; num <=nb; num++ )
821 FixSelfIntersectingEdge ( num );
822 myStatusSelfIntersection |= myLastFixStatus;
823 if(nb<sbwd->NbEdges()) num--;
824 nb = sbwd->NbEdges();
826 FixClosed(Precision());
830 if ( NeedFix ( myFixIntersectingEdgesMode ) ) {
831 Standard_Integer num = ( myClosedMode ? 1 : 2 );
832 for ( ; nb >1 && num <= nb; num++ ) {
833 FixIntersectingEdges ( num );
834 if ( LastFixStatus ( ShapeExtend_FAIL1 ) )
835 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
836 if ( LastFixStatus ( ShapeExtend_FAIL2 ) )
837 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
838 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) continue;
840 if ( LastFixStatus ( ShapeExtend_DONE1 ) )
841 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
842 if ( LastFixStatus ( ShapeExtend_DONE2 ) )
843 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
844 if(LastFixStatus (ShapeExtend_DONE6))
845 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
847 if ( ! myTopoMode || nb < 3 ) {
848 //#86 rln 22.03.99 sim2.igs, entity 4292: After fixing of self-intersecting
849 //BRepCheck finds one more self-intersection not found by ShapeAnalysis
850 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
851 //FixIntersectingEdges ( num );
852 if ( LastFixStatus ( ShapeExtend_DONE7 ) ) num--;
856 if ( LastFixStatus ( ShapeExtend_DONE4 ) ) sbwd->Remove ( num );
857 if ( LastFixStatus ( ShapeExtend_DONE3 ) ) sbwd->Remove ( num >1 ? num-1 : nb+num-1 );
858 if ( LastFixStatus ( ShapeExtend_DONE4 ) ||
859 LastFixStatus ( ShapeExtend_DONE3 ) ) {
860 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
861 num = ( myClosedMode ? 1 : 2 );
862 nb = sbwd->NbEdges();
864 cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Edge removed" << endl;
869 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
870 //FixIntersectingEdges ( num );
871 if ( LastFixStatus ( ShapeExtend_DONE7 ) ) num--;
876 //pdn 17.03.99 S4135 to avoid regression fixing not adjacent intersection
877 if ( NeedFix ( myFixNonAdjacentIntersectingEdgesMode ) ) {
879 ShapeFix_IntersectionTool ITool(Context(),Precision());
880 Standard_Integer NbSplit=0, NbCut=0,NbRemoved=0;
881 if(ITool.FixSelfIntersectWire(sbwd,myAnalyzer->Face(),NbSplit,NbCut,NbRemoved)) {
882 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//gka 06.09.04
884 if( NbSplit>0 || NbRemoved>0 ) {
885 if(NbRemoved>0) myStatusRemovedSegment = Standard_True;
886 //Load(sbwd); commented by skl 29.12.2004 for OCC7624, instead this
887 // string inserted following three strings:
888 myAnalyzer->Load ( sbwd );
889 if ( ! Context().IsNull() ) UpdateWire();
893 if (StatusSelfIntersection (ShapeExtend_DONE5))
894 cout<<"Warning: ShapeFix_Wire::FixIntersection: Non-adjacent intersection fixed (split-"
895 <<NbSplit<<", cut-"<<NbCut<<", removed-"<<NbRemoved<<")"<<endl;
899 Bnd_Array1OfBox2d boxes(1,nb);
901 const Handle(Geom_Surface)& S = BRep_Tool::Surface(Face(), L);
902 Handle(Geom2d_Curve) c2d;
904 ShapeAnalysis_Edge sae;
905 for(Standard_Integer i = 1; i <= nb; i++){
906 TopoDS_Edge E = sbwd->Edge (i);
907 if(sae.PCurve (E,S,L,c2d,cf,cl,Standard_False)) {
909 Geom2dAdaptor_Curve gac;
910 Standard_Real aFirst = c2d->FirstParameter();
911 Standard_Real aLast = c2d->LastParameter();
912 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
913 && (cf < aFirst || cl > aLast)) {
914 //pdn avoiding problems with segment in Bnd_Box
919 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
924 Standard_Boolean isFail = Standard_False, isDone = Standard_False;
925 for(Standard_Integer num1 = 1; num1 < nb-1; num1++) {
926 Standard_Integer fin = (num1 == 1 ? nb-1 : nb);
927 for(Standard_Integer num2 = num1+2; num2 <= fin; num2++)
928 if(!boxes(num1).IsOut(boxes(num2))){
929 FixIntersectingEdges (num1, num2);
930 isFail |= LastFixStatus ( ShapeExtend_FAIL1 );
931 isDone |= LastFixStatus ( ShapeExtend_DONE1 );
936 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
938 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
940 if (StatusSelfIntersection (ShapeExtend_DONE5))
941 cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Non ajacent intersection fixed" << endl;
946 return StatusSelfIntersection ( ShapeExtend_DONE );
950 //=======================================================================
951 //function : FixLacking
953 //=======================================================================
955 Standard_Boolean ShapeFix_Wire::FixLacking ( const Standard_Boolean force )
957 myStatusLacking = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
958 if ( ! IsReady() ) return Standard_False;
960 Standard_Integer start = ( myClosedMode ? 1 : 2 );
961 for ( Standard_Integer i = start; i <= NbEdges(); i++ ) {
962 FixLacking ( i, force );
963 myStatusLacking |= myLastFixStatus;
966 return StatusLacking ( ShapeExtend_DONE );
970 //=======================================================================
971 //function : FixClosed
973 //=======================================================================
975 Standard_Boolean ShapeFix_Wire::FixClosed (const Standard_Real prec)
977 myStatusClosed = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
978 if ( ! IsLoaded() || NbEdges() <1 ) return Standard_False;
980 FixConnected ( 1, prec );
981 if ( LastFixStatus ( ShapeExtend_DONE ) )
982 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
983 if ( LastFixStatus ( ShapeExtend_FAIL ) )
984 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
986 FixDegenerated ( 1 );
987 if ( LastFixStatus ( ShapeExtend_DONE ) )
988 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
989 if ( LastFixStatus ( ShapeExtend_FAIL ) )
990 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
993 if ( LastFixStatus ( ShapeExtend_DONE ) )
994 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
995 if ( LastFixStatus ( ShapeExtend_FAIL ) )
996 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
998 return StatusClosed ( ShapeExtend_DONE );
1002 //#######################################################################
1003 // Fixing methods of advanced level
1004 //#######################################################################
1006 //=======================================================================
1007 //function : FixReorder
1009 //=======================================================================
1011 Standard_Boolean ShapeFix_Wire::FixReorder (const ShapeAnalysis_WireOrder& wi)
1013 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1014 if ( ! IsLoaded() ) return Standard_False;
1016 Standard_Integer status = wi.Status();
1017 if ( status ==0 ) return Standard_False;
1018 if ( status <=-10 ) {
1019 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1020 return Standard_False;
1023 Handle(ShapeExtend_WireData) sbwd = WireData();
1024 Standard_Integer i, nb = sbwd->NbEdges();
1025 if ( nb != wi.NbEdges() ) {
1026 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1027 return Standard_False;
1029 // D abord on protege
1030 for (i = 1; i <= nb; i ++) {
1031 if ( wi.Ordered(i) == 0 ) {
1032 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1033 return Standard_False;
1037 Handle(TopTools_HSequenceOfShape) newedges = new TopTools_HSequenceOfShape();
1038 for ( i=1; i <= nb; i++ )
1039 newedges->Append ( sbwd->Edge ( wi.Ordered(i) ) );
1040 for ( i=1; i <= nb; i++ )
1041 sbwd->Set ( TopoDS::Edge ( newedges->Value(i) ), i );
1043 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1044 return Standard_True;
1048 //=======================================================================
1049 //function : FixSmall
1051 //=======================================================================
1053 Standard_Boolean ShapeFix_Wire::FixSmall (const Standard_Integer num,
1054 const Standard_Boolean lockvtx,
1055 const Standard_Real precsmall)
1057 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1058 if ( ! IsLoaded() || NbEdges() <=1 ) return Standard_False;
1061 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
1062 if (theAdvAnalyzer.IsNull()) return Standard_False;
1063 Standard_Integer n = ( num >0 ? num : NbEdges() );
1064 theAdvAnalyzer->CheckSmall ( n, precsmall );
1065 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1066 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1067 //:n2 return Standard_False;
1070 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1072 // OUI cette edge est NULLE
1074 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) ) {
1075 // edge is small, but vertices are not the same..
1076 if ( lockvtx || ! myTopoMode ) {
1077 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1078 return Standard_False;
1080 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1082 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1084 // action: remove edge
1085 if ( ! Context().IsNull() )
1086 Context()->Remove(WireData()->Edge(n));
1087 SendWarning ( WireData()->Edge ( n ), Message_Msg ( "FixAdvWire.FixSmall.MSG0" ) ); //Small edge(s) removed
1088 WireData()->Remove ( n );
1090 // call FixConnected in the case if vertices of the small edge were not the same
1091 if ( LastFixStatus ( ShapeExtend_DONE2 ) ) {
1092 Standard_Integer savLastFixStatus = myLastFixStatus;
1093 //#43 rln 20.11.98 S4054 CTS18544 entity 21734 removing last edge
1094 FixConnected ( n <= NbEdges() ? n : 1, precsmall );
1095 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1096 savLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1097 myLastFixStatus = savLastFixStatus;
1100 return Standard_True;
1104 //=======================================================================
1105 //function : FixConnected
1107 //=======================================================================
1109 Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Integer num,
1110 const Standard_Real prec)
1112 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1113 if ( ! IsLoaded() || NbEdges() <=0 ) return Standard_False;
1117 myAnalyzer->CheckConnected ( num, prec < 0 ? MaxTolerance() : prec );
1118 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1119 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1121 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1123 // action: replacing vertex
1125 Handle(ShapeExtend_WireData) sbwd = WireData();
1126 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1127 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1128 TopoDS_Edge E1 = sbwd->Edge(n1);
1129 TopoDS_Edge E2 = sbwd->Edge(n2);
1131 ShapeAnalysis_Edge sae;
1132 TopoDS_Vertex V1 = sae.LastVertex (E1);
1133 TopoDS_Vertex V2 = sae.FirstVertex (E2);
1136 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ) { // absolutely confused
1137 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1138 //#40 rln 18.11.98 S4054 BUC60035 entity 2393 (2-nd sub-curve is edge with the same vertex)
1139 if ( V2.IsSame ( sae.LastVertex (E2) ) ) {
1141 if ( ! Context().IsNull() )
1142 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1146 if ( ! Context().IsNull() )
1147 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1150 else { // on moyenne ...
1151 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) )
1152 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1153 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1154 ShapeBuild_Vertex sbv;
1155 V = sbv.CombineVertex ( V1, V2, 1.0001 );
1156 if ( ! Context().IsNull() ) {
1157 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1158 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1162 // replace vertices to a new one
1163 ShapeBuild_Edge sbe;
1164 if ( sbwd->NbEdges() <2 ) {
1165 if(E2.Free() && myTopoMode) {
1167 B.Remove(E2,sae.FirstVertex(E2));
1168 B.Remove(E2,sae.LastVertex(E2));
1169 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1170 B.Add(E2,V.Oriented(TopAbs_REVERSED));
1173 TopoDS_Edge tmpE = sbe.CopyReplaceVertices ( E2, V, V );
1174 sbwd->Set ( tmpE, n2 );
1175 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE);
1179 if(E2.Free() &&E1.Free() && myTopoMode) {
1181 B.Remove(E2,sae.FirstVertex(E2));
1182 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1183 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1184 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1185 B.Remove(E1,sae.LastVertex(E1));
1186 B.Add(E1,V.Oriented(TopAbs_REVERSED));
1190 TopoDS_Edge tmpE2 = sbe.CopyReplaceVertices ( E2, V, TopoDS_Vertex() );
1191 sbwd->Set ( tmpE2, n2 );
1192 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE2);
1193 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1194 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1195 TopoDS_Edge tmpE1 = sbe.CopyReplaceVertices ( E1, TopoDS_Vertex(), V );
1196 sbwd->Set (tmpE1, n1 );
1197 if ( ! Context().IsNull() ) Context()->Replace(E1,tmpE1);
1201 if ( ! Context().IsNull() ) UpdateWire();
1203 return Standard_True;
1207 //=======================================================================
1208 //function : FixSeam
1210 //=======================================================================
1212 Standard_Boolean ShapeFix_Wire::FixSeam (const Standard_Integer num)
1214 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1215 if ( ! IsReady() ) return Standard_False;
1217 Handle(Geom2d_Curve) C1, C2;
1218 Standard_Real cf, cl;
1219 if ( ! myAnalyzer->CheckSeam (num, C1, C2, cf, cl) ) return Standard_False;
1222 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
1223 B.UpdateEdge (E, C2,C1, Face(), 0.); //:S4136: BRep_Tool::Tolerance(E)
1224 B.Range (E, Face(),cf,cl);
1225 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1227 return Standard_True;
1230 //=======================================================================
1231 //function : FixShifted
1232 //purpose : fix parametric curves which may be shifted
1233 // to whole parametric range of closed surface as result of recomputing
1234 // from 3d representation.
1235 // This can be a curve on a seam or near it.
1236 // This function is to be called before FixDegenerated.
1237 // LIMITATION: this function cannot fix cases when, e.g., closed wire is
1238 // composed of two meridians of the sphere and one of them is seam.
1239 // NOTE: wire is supposed to be closed and sorted !
1240 //=======================================================================
1242 //:p4 abv 23.02.99: PRO9234 #15720: update UV points of edge
1243 static void UpdateEdgeUVPoints (TopoDS_Edge &E, const TopoDS_Face &F)
1245 Standard_Real first, last;
1246 BRep_Tool::Range ( E, F, first, last );
1247 BRep_Builder().Range ( E, F, first, last );
1251 //=======================================================================
1252 //function : FixShifted
1254 //=======================================================================
1256 Standard_Boolean ShapeFix_Wire::FixShifted()
1258 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1259 if ( ! IsReady() ) return Standard_False;
1261 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
1262 //#78 rln 12.03.99 S4135: checking spatial closure with Precision
1263 Standard_Boolean uclosed = surf->IsUClosed(Precision());
1264 Standard_Boolean vclosed = surf->IsVClosed(Precision()) || surf->Surface()->IsKind (STANDARD_TYPE(Geom_SphericalSurface));
1265 //#67 rln 01.03.99 S4135: ims010.igs entity D11900 (2D contour is 2*PI higher than V range [-pi/2,p/2])
1267 // PTV 26.06.2002 begin
1268 // CTS18546-2.igs entity 2222: base curve is periodic and 2dcurve is shifted
1269 Standard_Boolean IsVCrvClosed = Standard_False;
1270 Standard_Real VRange = 1.;
1271 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1272 Handle(Geom_SurfaceOfRevolution) aSurOfRev = Handle(Geom_SurfaceOfRevolution)::DownCast(surf->Surface());
1273 Handle(Geom_Curve) aBaseCrv = aSurOfRev->BasisCurve();
1274 while ( (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve))) ||
1275 (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) ) {
1276 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve)))
1277 aBaseCrv = Handle(Geom_OffsetCurve)::DownCast(aBaseCrv)->BasisCurve();
1278 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve)))
1279 aBaseCrv = Handle(Geom_TrimmedCurve)::DownCast(aBaseCrv)->BasisCurve();
1281 if (aBaseCrv->IsPeriodic()) {
1282 vclosed = Standard_True;
1283 VRange = aBaseCrv->Period();
1284 IsVCrvClosed = Standard_True;
1286 cout << "Warning: ShapeFix_Wire::FixShifted set vclosed True for Surface of Revolution" << endl;
1290 // PTV 26.06.2002 end
1291 if ( ! uclosed && ! vclosed ) return Standard_False;
1293 Standard_Real URange, /*VRange,*/ SUF, SUL, SVF, SVL;
1294 surf->Surface()->Bounds ( SUF, SUL, SVF, SVL );
1295 Standard_Real SUMid, SVMid;
1296 SUMid = 0.5*(SUF+SUL);
1297 SVMid = 0.5*(SVF+SVL);
1298 if (uclosed) URange = Abs ( SUL - SUF );
1299 else URange = RealLast();
1300 if (!IsVCrvClosed) {
1301 if (vclosed) VRange = Abs ( SVL - SVF );
1302 else VRange = RealLast();
1304 Standard_Real UTol = 0.2 * URange, VTol = 0.2 * VRange;
1306 Handle(ShapeExtend_WireData) sbwdOring = WireData();
1307 ShapeAnalysis_Edge sae;
1308 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData;
1309 for ( Standard_Integer i=1; i <= sbwdOring->NbEdges(); i++ ) {
1310 TopoDS_Edge E1 = sbwdOring->Edge ( i );
1311 if ( BRep_Tool::Degenerated(E1) && !sae.HasPCurve(E1,Face()))
1317 ShapeBuild_Edge sbe;
1318 Standard_Integer nb = sbwd->NbEdges();
1319 Standard_Boolean end = (nb == 0), degstop = Standard_False;;
1320 Standard_Integer stop = nb;
1321 Standard_Integer degn2 = 0;
1323 //pdn 17.12.98 r0901_ec 38237 to shift wire at 0
1325 //GeomAdaptor_Surface& GAS = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface(); //SK
1327 for ( Standard_Integer n2=1, n1=nb; ! end; n1 = n2++ ) {
1328 if ( n2 > nb ) n2 = 1;
1329 if ( n2 == stop ) end = Standard_True;
1331 TopoDS_Edge E1 = sbwd->Edge ( n1 );
1332 TopoDS_Edge E2 = sbwd->Edge ( n2 );
1334 if ( BRep_Tool::Degenerated(E1) || BRep_Tool::Degenerated(E2) ) {
1335 if ( ! degstop ) { stop = n2; degstop = Standard_True; }
1339 TopoDS_Vertex V = sae.FirstVertex ( E2 );
1340 gp_Pnt p = BRep_Tool::Pnt ( V );
1342 Standard_Real a1 = 0., b1 = 0., a2 = 0., b2 = 0.;
1343 Handle(Geom2d_Curve) c2d1, c2d2;
1345 //:abv 29.08.01: torCuts.sat: distinguish degeneration by U and by V;
1346 // only corresponding move is prohibited
1347 // Standard_Boolean isDeg = surf->IsDegenerated ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ) );
1348 Standard_Integer isDeg = 0;
1349 gp_Pnt2d degP1, degP2;
1350 Standard_Real degT1, degT2;
1351 if ( surf->DegeneratedValues ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ),
1352 degP1, degP2, degT1, degT2 ) )
1353 isDeg = ( Abs ( degP1.X() - degP2.X() ) > Abs ( degP1.Y() - degP2.Y() ) ? 1 : 2 );
1355 // abv 23 Feb 00: UKI60107-6 210: additional check for near-degenerated case
1356 //smh#15 PRO19800. Check if the surface is surface of revolution.
1357 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1358 if ( ! isDeg && ! vclosed ) {
1359 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1360 gp_Pnt2d p1 ( SUF, c2d1->Value(b1).Y() );
1361 gp_Pnt2d p2 ( SUL, c2d1->Value(b1).Y() );
1362 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1363 ! surf->IsDegenerated ( c2d1->Value(a1), c2d1->Value(b1), MaxTolerance(), 10 ) ) // abv 31.07.00: trj4_pm1-ec-214.stp #31274: still allow work if edge already exists
1366 if ( ! isDeg && ! uclosed ) {
1367 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1368 gp_Pnt2d p1 ( c2d1->Value(b1).X(), SVF );
1369 gp_Pnt2d p2 ( c2d1->Value(b1).X(), SVL );
1370 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1371 ! surf->IsDegenerated ( c2d1->Value(a1), c2d1->Value(b1), MaxTolerance(), 10 ) ) // abv 31.07.00: trj4_pm1-ec-214.stp #31274: still allow work if edge already exists
1377 if ( ! degstop ) { stop = n2; degstop = Standard_True; }
1378 if ( ! degn2 ) { degn2 = n2; pdeg = p; }
1379 else if ( pdeg.SquareDistance(p) < Precision()*Precision() ) {
1381 // if ( stop < n2 ) { stop = n2; degstop = Standard_True; }
1384 Standard_Real ax1 = 0., bx1 = 0., ax2 = 0., bx2 = 0.;
1385 Handle(Geom2d_Curve) cx1, cx2;
1386 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1387 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ||
1388 ! sae.PCurve ( sbwd->Edge ( degn2 >1 ? degn2-1 : nb ), Face(), cx1, ax1, bx1, Standard_True ) ||
1389 ! sae.PCurve ( sbwd->Edge ( degn2 ), Face(), cx2, ax2, bx2, Standard_True ) ) {
1390 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1393 gp_Pnt2d pd1 = cx1->Value ( bx1 );
1394 gp_Pnt2d pd2 = cx2->Value ( ax2 );
1395 gp_Pnt2d pn1 = c2d1->Value ( b1 );
1396 gp_Pnt2d pn2 = c2d2->Value ( a2 );
1397 gp_Vec2d x(0.,0.); // shift vector
1398 Standard_Real period;
1399 if ( uclosed ) { x.SetX ( 1. ); period = URange; }
1400 else { x.SetY ( 1. ); period = VRange; }
1401 Standard_Real rot1 = ( pn1.XY() - pd2.XY() ) ^ x.XY();
1402 Standard_Real rot2 = ( pd1.XY() - pn2.XY() ) ^ x.XY();
1403 Standard_Real scld = ( pd2.XY() - pd1.XY() ) * x.XY();
1404 Standard_Real scln = ( pn2.XY() - pn1.XY() ) * x.XY();
1405 if ( rot1 * rot2 < -::Precision::PConfusion() &&
1406 scld * scln < -::Precision::PConfusion() &&
1407 Abs ( scln ) > 0.1 * period && Abs ( scld ) > 0.1 * period &&
1408 rot1 * scld > ::Precision::PConfusion() &&
1409 rot2 * scln > ::Precision::PConfusion() ) {
1410 // abv 02 Mar 00: trying more sophisticated analysis (ie_exhaust-A.stp #37520)
1411 Standard_Real sign = ( rot2 >0 ? 1. : -1. );
1412 Standard_Real deep1 = Min ( sign * ( pn2.XY() * x.XY() ),
1413 Min ( sign * ( pd1.XY() * x.XY() ),
1414 Min ( sign * ( c2d2->Value(b2 ).XY() * x.XY() ),
1415 Min ( sign * ( cx1->Value(ax1).XY() * x.XY() ),
1416 Min ( sign * ( c2d2->Value(0.5*(a2 +b2 )).XY() * x.XY() ),
1417 sign * ( cx1->Value(0.5*(ax1+bx1)).XY() * x.XY() ) ) ) ) ) );
1418 Standard_Real deep2 = Max ( sign * ( pn1.XY() * x.XY() ),
1419 Max ( sign * ( pd2.XY() * x.XY() ),
1420 Max ( sign * ( c2d1->Value(a1 ).XY() * x.XY() ),
1421 Max ( sign * ( cx2->Value(bx2).XY() * x.XY() ),
1422 Max ( sign * ( c2d1->Value(0.5*(a1 +b1 )).XY() * x.XY() ),
1423 sign * ( cx2->Value(0.5*(ax2+bx2)).XY() * x.XY() ) ) ) ) ) );
1424 Standard_Real deep = deep2 - deep1; // estimated current size of wire by x
1425 // pdn 30 Oct 00: trying correct period [0,period] (trj5_k1-tc-203.stp #4698)
1426 Standard_Real dx = ShapeAnalysis::AdjustToPeriod ( deep, ::Precision::PConfusion(), period+::Precision::PConfusion());
1427 x *= ( scld >0 ? -dx : dx );
1428 // x *= ( Abs(scld-scln) > 1.5 * period ? 2. : 1. ) *
1429 // ( scld >0 ? -period : period );
1431 Shift.SetTranslation ( x );
1432 for ( Standard_Integer k=degn2; ; k++ ) {
1433 if ( k > nb ) k = 1;
1434 if ( k == n2 ) break;
1435 TopoDS_Edge edge = sbwd->Edge ( k );
1436 if ( ! sae.PCurve ( edge, Face(), cx1, ax1, bx1, Standard_True ) ) continue;
1437 //cx1->Transform ( Shift );
1438 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1439 Handle(Geom2d_Curve) cx1new = Handle(Geom2d_Curve)::DownCast(cx1->Transformed(Shift));
1440 sbe.ReplacePCurve(edge,cx1new,Face());
1441 UpdateEdgeUVPoints ( edge, Face() );
1443 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1445 cout << "Info: ShapeFix_Wire::FixShifted(): bi - meridian case fixed" << endl;
1449 // degn2 = n2; pdeg = p; // ie_exhaust-A.stp #37520
1452 // pdn to fix half sphere
1453 TopoDS_Vertex VE = sae.LastVertex ( E2 );
1454 gp_Pnt pe = BRep_Tool::Pnt ( VE );
1455 //pdn is second vertex on singular point ?
1456 if ( surf->IsDegenerated ( pe, Max ( Precision(), BRep_Tool::Tolerance(V) ) ) ) {
1457 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1458 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1459 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1462 gp_Pnt2d p2d1 = c2d1->Value ( b1 ), p2f = c2d2->Value ( a2 ), p2l = c2d2->Value ( b2 );
1463 Standard_Real pres2 = ::Precision::PConfusion();
1464 Standard_Real du = 0.,dv = 0.;
1465 //#79 rln 15.03.99 S4135: bmarkmdl.igs entity 633 (incorrectly oriented contour) check for gap
1466 if(uclosed&&(Abs(p2f.X()-p2l.X())<pres2)&&Abs(p2d1.X()-p2f.X())>GAS.UResolution(Precision())) {
1467 if((Abs(p2f.X()-SUF)<pres2)&&(p2f.Y()<p2l.Y()))
1469 if((Abs(p2f.X()-SUL)<pres2)&&(p2f.Y()>p2l.Y()))
1472 if(vclosed&&(Abs(p2f.Y()-p2l.Y())<pres2)&&Abs(p2d1.Y()-p2f.Y())>GAS.VResolution(Precision())) {
1473 if((Abs(p2f.Y()-SVF)<pres2)&&(p2f.X()>p2l.X()))
1475 if((Abs(p2f.Y()-SVL)<pres2)&&(p2f.X()<p2l.X()))
1478 if ( du ==0. && dv == 0. ) continue;
1479 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1481 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1482 c2d2->Transform ( Shift );
1483 UpdateEdgeUVPoints ( E2, Face() );//rln 15.03.99 syntax correction :E1
1486 //:abv 29.08.01: torCuts.sat: continue;
1489 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1490 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1491 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1494 gp_Pnt2d p2d1 = c2d1->Value ( b1 );
1495 gp_Pnt2d p2d2 = c2d2->Value ( a2 );
1498 Standard_Real du=0., dv=0.;
1499 if ( uclosed && isDeg != 1 ) {
1500 Standard_Real dx = Abs ( p2d2.X() - p2d1.X() );
1501 if ( dx > URange - UTol )
1502 du = ShapeAnalysis::AdjustByPeriod ( p2d2.X(), p2d1.X(), URange );
1503 else if ( dx > UTol && stop == nb ) stop = n2; //:abv 29.08.01: torCuts2.stp
1505 if ( vclosed && isDeg != 2 ) {
1506 Standard_Real dy = Abs ( p2d2.Y() - p2d1.Y() );
1507 if ( dy > VRange - VTol )
1508 dv = ShapeAnalysis::AdjustByPeriod ( p2d2.Y(), p2d1.Y(), VRange );
1509 else if ( dy > VTol && stop == nb ) stop = n2;
1511 if ( du ==0. && dv == 0. ) continue;
1513 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1515 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1516 //c2d2->Transform ( Shift );
1517 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1518 Handle(Geom2d_Curve) c2d2new = Handle(Geom2d_Curve)::DownCast(c2d2->Transformed(Shift));
1519 sbe.ReplacePCurve(E2,c2d2new,Face());
1520 UpdateEdgeUVPoints ( E2, Face() );
1522 if ( box.IsVoid() ) return Standard_False; //#3 smh 01.04.99. S4163: Overflow, when box is void.
1524 Standard_Real umin, vmin, umax, vmax;
1525 box.Get ( umin, vmin, umax, vmax );
1526 if ( Abs ( umin + umax - SUF - SUL ) < URange &&
1527 Abs ( vmin + vmax - SVF - SVL ) < VRange &&
1528 ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
1531 Standard_Integer n; // svv Jan11 2000 : porting on DEC
1532 for ( n=1; n <= nb; n++ ) {
1534 Handle(Geom2d_Curve) c2d;
1535 if ( ! sae.PCurve ( sbwd->Edge(n), Face(), c2d, a, b, Standard_True ) ) continue;
1536 box.Add ( c2d->Value ( a ) );
1537 box.Add ( c2d->Value ( 0.5 * ( a + b ) ) );
1539 box.Get ( umin, vmin, umax, vmax );
1541 Standard_Real du=0., dv=0.;
1544 Standard_Real umid = 0.5 * ( umin + umax );
1545 // du = ShapeAnalysis::AdjustToPeriod(umid, SUF, SUL);
1546 // PTV 26.06.2002 xloop torus-apple iges face mode
1547 du = ShapeAnalysis::AdjustByPeriod(umid, SUMid, URange);
1550 Standard_Real vmid = 0.5 * ( vmin + vmax );
1551 // dv = ShapeAnalysis::AdjustToPeriod(vmid, SVF, SVL);
1552 // PTV 26.06.2002 xloop torus-apple iges face mode
1553 dv = ShapeAnalysis::AdjustByPeriod(vmid, SVMid, VRange);
1556 if ( du ==0. && dv == 0. ) return Standard_True;
1558 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1561 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1563 for ( n=1; n <= sbwdOring->NbEdges(); n++ ) {
1565 Handle(Geom2d_Curve) c2d;
1566 TopoDS_Edge ed = sbwdOring->Edge(n);
1567 if ( ! sae.PCurve ( ed, Face(), c2d, a, b, Standard_True ) ) continue;
1568 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1569 Handle(Geom2d_Curve) c2d2 = Handle(Geom2d_Curve)::DownCast(c2d->Transformed(Shift));
1570 sbe.ReplacePCurve(ed,c2d2,Face());
1571 UpdateEdgeUVPoints ( ed, Face() );
1573 return Standard_True;
1576 //=======================================================================
1577 //function : FixDegenerated
1579 //=======================================================================
1581 Standard_Boolean ShapeFix_Wire::FixDegenerated (const Standard_Integer num)
1583 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1584 if ( ! IsReady() ) return Standard_False;
1587 gp_Pnt2d p2d1, p2d2;
1588 myAnalyzer->CheckDegenerated ( num, p2d1, p2d2 );
1589 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL1 ) ) {
1590 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1592 //: abv 29.08.01: torHalf2.sat: if edge was encoded as degenerated but
1593 // has no pcurve and no singularity is found at that point, remove it
1594 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL2 ) ) {
1595 WireData()->Remove ( num );
1596 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1597 return Standard_True;
1599 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1601 // action: create degenerated edge and insert it (or replace)
1603 gp_Vec2d vect2d ( p2d1, p2d2 );
1604 gp_Dir2d dir2d ( vect2d );
1605 Handle(Geom2d_Line) line2d = new Geom2d_Line ( p2d1, dir2d );
1607 TopoDS_Edge degEdge;
1609 B.MakeEdge ( degEdge );
1610 B.Degenerated ( degEdge, Standard_True );
1611 B.UpdateEdge ( degEdge, line2d, Face(), ::Precision::Confusion() );
1612 B.Range ( degEdge, Face(), 0., vect2d.Magnitude() );
1614 Handle(ShapeExtend_WireData) sbwd = WireData();
1615 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1616 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1618 Standard_Boolean lack = myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 );
1619 Standard_Integer n3 = ( lack ? n2 : ( n2 < sbwd->NbEdges() ? n2+1 : 1 ) );
1621 ShapeAnalysis_Edge sae;
1622 TopoDS_Vertex V1 = sae.LastVertex ( sbwd->Edge ( n1 ) );
1623 TopoDS_Vertex V2 = sae.FirstVertex ( sbwd->Edge ( n3 ) );
1625 V1.Orientation(TopAbs_FORWARD);
1626 V2.Orientation(TopAbs_REVERSED);
1629 degEdge.Orientation(TopAbs_FORWARD);
1632 sbwd->Add ( degEdge, n2 );
1633 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1636 sbwd->Set ( degEdge, n2 );
1637 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1640 // commented to avoid extra messages
1641 // SendWarning ( degEdge, Message_Msg ( "FixWire.FixDegenerated.MSG0" ) );// Degenerated edge(s) detected
1643 return Standard_True;
1646 //=======================================================================
1647 //function : FixSelfIntersectingEdge
1648 //purpose : Tests edge for self-intersection and updates tolerance of vertex
1649 // if intersection is found
1650 // Returns True if tolerance was increased
1651 //=======================================================================
1653 // Create edge on basis of E with new pcurve and call FixSP
1654 // Return resulting tolerance and modified pcurve
1655 static Standard_Boolean TryNewPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
1656 Handle(Geom2d_Curve) &c2d,
1657 Standard_Real &first,
1658 Standard_Real &last,
1662 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1663 if ( crv.IsNull() ) return Standard_False;
1665 // make temp edge and compute tolerance
1666 BRepBuilderAPI_MakeEdge mkedge ( crv, f, l );
1668 ShapeBuild_Edge SBE; //skl 17.07.2001
1669 SBE.SetRange3d(mkedge,f,l); //skl 17.07.2001
1671 if ( ! mkedge.IsDone() ) return Standard_False;
1673 TopoDS_Edge edge = mkedge;
1675 B.UpdateEdge ( edge, c2d, face, 0. );
1676 B.Range ( edge, face, first, last );
1677 B.SameRange ( edge, Standard_False );
1678 // no call to BRepLib: B.SameParameter ( edge, Standard_False );
1680 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
1681 sfe->FixSameParameter ( edge );
1682 c2d = BRep_Tool::CurveOnSurface ( edge, face, first, last );
1683 tol = BRep_Tool::Tolerance ( edge );
1684 return Standard_True;
1687 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087:
1688 // Try to cut out the loop on the pcurve and make new pcurve by concatenating
1690 // If result is not SameParameter with prec, does nothing and returns False
1691 // Warning: resulting pcurve will be C0
1693 //=======================================================================
1694 //function : howMuchPCurves
1696 //=======================================================================
1697 static Standard_Integer howMuchPCurves (const TopoDS_Edge &E)
1699 Standard_Integer count = 0;
1700 BRep_ListIteratorOfListOfCurveRepresentation itcr
1701 ((*((Handle(BRep_TEdge)*)&E.TShape()))->ChangeCurves());
1703 while (itcr.More()) {
1704 const Handle(BRep_CurveRepresentation)& cr = itcr.Value();
1705 if ( cr->IsCurveOnSurface() )
1714 //=======================================================================
1715 //function : RemoveLoop
1717 //=======================================================================
1718 static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
1719 const IntRes2d_IntersectionPoint &IP,
1720 const Standard_Real tolfact,
1721 const Standard_Real prec,
1722 const Standard_Boolean RemoveLoop3d)
1724 Standard_Boolean loopRemoved3d;
1725 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
1728 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1730 Standard_Real t1 = IP.ParamOnFirst();
1731 Standard_Real t2 = IP.ParamOnSecond();
1732 if ( t1 > t2 ) { Standard_Real t = t1; t1 = t2; t2 = t; }
1734 ShapeAnalysis_Edge sae;
1736 Handle(Geom2d_Curve) c2d;
1737 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
1738 return Standard_False;
1741 cout << "Cut Loop: params (" << t1 << ", " << t2;
1743 GeomAdaptor_Curve GAC ( crv, f, l );
1744 Standard_Real dt = tolfact * GAC.Resolution(prec);
1745 t1 -= dt; //1e-3;//::Precision::PConfusion();
1746 t2 += dt; //1e-3;//::Precision::PConfusion();
1748 cout << ") -> (" << t1 << ", " << t2 << ")" << endl;
1751 if ( t1 <= a || t2 >= b ) { // should not be so, but to be sure ..
1752 return Standard_False;
1755 // direct construction causes error on osf system.
1762 Handle(Geom_Plane) aPlaneSurf = Handle(Geom_Plane)::DownCast( BRep_Tool::Surface(face) );
1763 Handle(Geom_Curve) pcurve3d = crv;
1764 if ( !aPlaneSurf.IsNull() ) {
1765 Pln = aPlaneSurf->Pln();
1768 pcurve3d = GeomAPI::To3d ( c2d, Pln );
1771 //Handle(Geom_Curve) pcurve3d = GeomAPI::To3d ( c2d, Pln );
1772 Handle(Geom_TrimmedCurve) trim = new Geom_TrimmedCurve (pcurve3d, a, t1);
1773 GeomConvert_CompCurveToBSplineCurve connect ( trim );
1775 // null-length segment patch instead of loop
1776 TColgp_Array1OfPnt Poles(1,2);
1777 TColStd_Array1OfReal Knots(1,2);
1778 TColStd_Array1OfInteger Mults(1,2);
1780 Poles.SetValue(1,trim->Value(t1));
1781 Knots.SetValue(1,t1);
1782 Mults.SetValue(1,2);
1784 trim = new Geom_TrimmedCurve (pcurve3d, t2, b);
1785 Poles.SetValue(2,trim->Value(t2));
1786 Knots.SetValue(2,t2);
1787 Mults.SetValue(2,2);
1789 Handle(Geom_BSplineCurve) patch = new Geom_BSplineCurve ( Poles, Knots, Mults, 1 );
1790 if ( ! connect.Add (patch, ::Precision::PConfusion(), Standard_True, Standard_False) )
1791 return Standard_False;
1794 if ( ! connect.Add (trim, ::Precision::PConfusion(), Standard_True, Standard_False) )
1795 return Standard_False;
1797 // keep created 3d curve
1798 Handle(Geom_Curve) aNew3dCrv = connect.BSplineCurve();
1801 Handle(Geom2d_Curve) bs = GeomAPI::To2d ( aNew3dCrv, Pln );
1802 if ( bs.IsNull() ) return Standard_False;
1804 // make temp edge and compute tolerance
1807 if(!RemoveLoop3d) { // old variant (not remove loop 3d)
1808 Standard_Real newtol=0;
1810 Standard_Integer nbC2d = howMuchPCurves( E );
1811 if ( nbC2d <= 1 && !aPlaneSurf.IsNull() )
1812 B.UpdateEdge ( E, bs, face, 0 );
1814 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1816 Standard_Real tol = BRep_Tool::Tolerance ( E );
1818 cout << "Cut Loop: tol orig " << tol << ", prec " << prec << ", new tol " << newtol << endl;
1820 if ( newtol > Max ( prec, tol ) ) return Standard_False;
1821 //:s2 bs = BRep_Tool::CurveOnSurface ( edge, face, a, b );
1822 if ( Abs ( a - f ) > ::Precision::PConfusion() || // smth strange, cancel
1823 Abs ( b - l ) > ::Precision::PConfusion() ) return Standard_False;
1825 if ( !aPlaneSurf.IsNull() ) {
1826 B.UpdateEdge ( E, aNew3dCrv, Max (newtol, tol) );
1828 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1830 B.UpdateEdge ( E, bs, face, newtol );
1831 B.UpdateVertex ( sae.FirstVertex ( E ), newtol );
1832 B.UpdateVertex ( sae.LastVertex ( E ), newtol );
1833 return Standard_True;
1838 Handle(Geom_Surface) S = BRep_Tool::Surface(face, L);
1839 Handle(Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
1840 Handle(GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
1842 Adaptor3d_CurveOnSurface ACS(AC,AS);
1843 gp_Pnt P1(ACS.Value(t1));
1844 gp_Pnt P2(ACS.Value(t2));
1845 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
1847 ShapeAnalysis_TransferParametersProj SFTP(E,face);
1848 Handle(TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
1851 Seq2d->Append((t1+t2)/2);
1852 Handle(TColStd_HSequenceOfReal) Seq3d = new TColStd_HSequenceOfReal;
1853 Seq3d->Append(SFTP.Perform(Seq2d,Standard_False));
1855 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
1856 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
1857 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
1858 Standard_Real ftrim,ltrim;
1859 if(dist3>Max(dist1,dist2)) {
1860 loopRemoved3d = Standard_False;
1863 loopRemoved3d = Standard_True;
1866 Handle(Geom_Curve) bs1;
1868 if (!loopRemoved3d) {
1869 // create new 3d curve
1870 ftrim = Seq3d->Value(1);
1871 ltrim = Seq3d->Value(2);
1874 Handle(Geom_TrimmedCurve) trim1 = new Geom_TrimmedCurve (crv, f, ftrim);
1875 GeomConvert_CompCurveToBSplineCurve connect1 ( trim1 );
1876 TColgp_Array1OfPnt Poles1(1,2);
1877 TColStd_Array1OfReal Knots1(1,2);
1878 TColStd_Array1OfInteger Mults1(1,2);
1880 Poles1.SetValue(1,trim1->Value(ftrim));
1881 Knots1.SetValue(1,ftrim);
1882 Mults1.SetValue(1,2);
1884 trim1 = new Geom_TrimmedCurve (crv, ltrim, l);
1885 Poles1.SetValue(2,trim1->Value(ltrim));
1886 Knots1.SetValue(2,ltrim);
1887 Mults1.SetValue(2,2);
1889 // create b-spline curve
1890 Handle(Geom_BSplineCurve) patch1 = new Geom_BSplineCurve ( Poles1, Knots1, Mults1, 1 );
1892 if ( ! connect1.Add (patch1, ::Precision::PConfusion(), Standard_True, Standard_False) )
1893 return Standard_False;
1896 if ( ! connect1.Add (trim1, ::Precision::PConfusion(), Standard_True, Standard_False) )
1897 return Standard_False;
1899 bs1 = connect1.BSplineCurve();
1902 return Standard_False;
1904 // Standard_Real oldtol = BRep_Tool::Tolerance ( E );
1907 B.UpdateEdge ( E, bs1, L, 0. );
1908 B.UpdateEdge ( E, bs, face, 0. );
1909 B.Range ( E, face, f, l );
1910 B.SameRange ( E, Standard_False );
1912 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
1913 sfe->FixSameParameter ( E );
1915 return Standard_True;
1918 //=======================================================================
1919 //function : RemoveLoop
1921 //=======================================================================
1922 static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
1923 const IntRes2d_IntersectionPoint &IP2d,
1928 cout<<"Info: ShapeFix_Wire::FixSelfIntersection : Try insert vertex"<<endl;
1931 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
1934 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1936 Standard_Real t1 = IP2d.ParamOnFirst();
1937 Standard_Real t2 = IP2d.ParamOnSecond();
1941 Standard_Real t = t1; t1 = t2; t2 = t;
1944 ShapeAnalysis_Edge sae;
1946 // define vertexes Vfirst , Vlast, Vmid
1947 TopoDS_Vertex Vfirst,Vlast,Vmid;
1948 // initialize Vfirst and Vlast
1949 Vfirst = sae.FirstVertex(E);
1950 Vlast = sae.LastVertex(E);
1952 // find a 2d curve and parameters from edge E
1954 Handle (Geom2d_Curve) c2d;
1955 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
1956 return Standard_False;
1958 // first segment for 2d curve
1959 Handle(Geom2d_TrimmedCurve) trim1;
1960 if( (t1-a)>Precision::PConfusion() )
1961 trim1 = new Geom2d_TrimmedCurve (c2d, a, t1);
1962 // second segment for 2d curve
1963 Handle(Geom2d_TrimmedCurve) trim2 = new Geom2d_TrimmedCurve (c2d, t2, b);
1965 // if ( trim1.IsNull() || trim2.IsNull() )
1967 return Standard_False;
1970 Handle (Geom_Surface) S = BRep_Tool::Surface(face, L);
1971 Handle (Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
1972 Handle (GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
1974 Adaptor3d_CurveOnSurface ACS(AC,AS);
1975 gp_Pnt P1(ACS.Value(t1));
1976 gp_Pnt P2(ACS.Value(t2));
1977 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
1979 // transfer parameters from pcurve to 3d curve
1980 ShapeAnalysis_TransferParametersProj SFTP(E,face);
1981 Handle (TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
1984 Seq2d->Append((t1+t2)/2);
1985 Handle (TColStd_HSequenceOfReal) Seq3d = new TColStd_HSequenceOfReal;
1986 Seq3d->Append(SFTP.Perform(Seq2d,Standard_False));
1988 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
1989 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
1990 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
1991 Standard_Real ftrim,ltrim;
1992 if ( dist3 > Max(dist1, dist2)) { // is loop in 3d
1993 ftrim = Seq3d->Value(1);
1994 ltrim = Seq3d->Value(2);
1996 else { // not loop in 3d
1997 ftrim = Seq3d->Value(3);
1998 ltrim = Seq3d->Value(3);
2001 // ftrim = Seq3d->Value(1);
2002 // ltrim = Seq3d->Value(2);
2004 // trim for 3d curve 'crv' with parameters from 'f' to 'l'
2005 Handle(Geom_TrimmedCurve) trim3;
2007 trim3 = new Geom_TrimmedCurve (crv, f, ftrim);
2008 // second segment for 3d curve
2009 Handle(Geom_TrimmedCurve) trim4 = new Geom_TrimmedCurve (crv, ltrim, l);
2011 // if ( trim3.IsNull() || trim4.IsNull() )
2013 return Standard_False;
2015 // create a point for middle vertex
2016 gp_Pnt pnt1 = crv->Value(ftrim);
2017 gp_Pnt pnt2 = crv->Value(ltrim);
2018 gp_Pnt Pmid((pnt1.X()+pnt2.X())/2,(pnt1.Y()+pnt2.Y())/2,(pnt1.Z()+pnt2.Z())/2);
2022 // create new copies for E1 and E2
2024 E1=TopoDS::Edge(E.EmptyCopied());
2025 E2=TopoDS::Edge(E.EmptyCopied());
2027 // initialize middle vertex Vmid
2029 B.MakeVertex(Vmid, pnt2, 0.);
2031 B.MakeVertex(Vmid, Pmid, 0.);
2033 ShapeBuild_Edge sbe;
2035 // replace verteces for new edges E1 and E2
2036 if (E.Orientation()== TopAbs_FORWARD)
2039 E1=sbe.CopyReplaceVertices(E1,Vfirst,Vmid);
2040 E2=sbe.CopyReplaceVertices(E2,Vmid, Vlast);
2045 E1=sbe.CopyReplaceVertices(E1,Vmid, Vlast);
2046 E2=sbe.CopyReplaceVertices(E2,Vfirst, Vmid);
2049 // Update edges by 2d and 3d curves
2050 Handle(ShapeFix_Edge) mySfe = new ShapeFix_Edge;
2052 B.UpdateEdge(E1, trim1, face, 0.);
2053 B.UpdateEdge(E1, trim3, 0.);
2054 B.Range(E1, f, ftrim);
2055 B.SameRange(E1,Standard_False);
2056 // B.SameParameter(E1,Standard_False);
2057 mySfe->FixSameParameter(E1);
2058 mySfe->FixVertexTolerance(E1);
2060 B.UpdateEdge(E2, trim2, face, 0.);
2061 B.UpdateEdge(E2, trim4, 0.);
2062 B.Range ( E2,ltrim,l );
2063 B.SameRange(E2, Standard_False );
2064 // B.SameParameter(E2, Standard_False);
2065 mySfe->FixSameParameter(E2);
2066 mySfe->FixVertexTolerance(E2);
2068 return Standard_True;
2072 //=======================================================================
2073 //function : FixSelfIntersectingEdge
2075 //=======================================================================
2077 Standard_Boolean ShapeFix_Wire::FixSelfIntersectingEdge (const Standard_Integer num)
2079 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2080 if ( ! IsReady() ) return Standard_False;
2083 IntRes2d_SequenceOfIntersectionPoint points2d;
2084 TColgp_SequenceOfPnt points3d;
2085 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2086 if (theAdvAnalyzer.IsNull()) return Standard_False;
2087 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, points2d, points3d );
2088 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2089 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2091 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2093 // action: increase tolerance of vertex
2095 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
2097 ShapeAnalysis_Edge sae;
2098 TopoDS_Vertex V1 = sae.FirstVertex ( E );
2099 TopoDS_Vertex V2 = sae.LastVertex ( E );
2100 Standard_Real tol1 = BRep_Tool::Tolerance ( V1 );
2101 Standard_Real tol2 = BRep_Tool::Tolerance ( V2 );
2102 gp_Pnt pnt1 = BRep_Tool::Pnt ( V1 );
2103 gp_Pnt pnt2 = BRep_Tool::Pnt ( V2 );
2105 // cycle is to verify fix in case of RemoveLoop
2106 Standard_Real tolfact = 0.1; // factor for shifting by parameter in RemoveLoop
2107 Standard_Real f2d = 0., l2d = 0.;
2108 Handle(Geom2d_Curve) c2d;
2109 Standard_Real newtol=0.; // = Precision();
2111 if (myRemoveLoopMode<1) {
2112 for ( Standard_Integer iter=0; iter < 30; iter++ ) {
2113 Standard_Boolean loopRemoved = Standard_False;;
2114 Standard_Real prevFirst = 0 , prevLast = 0;
2115 for ( Standard_Integer i=1; i<=points2d.Length(); i++ ) {
2116 gp_Pnt pint = points3d.Value(i);
2117 Standard_Real dist21 = pnt1.SquareDistance ( pint );
2118 Standard_Real dist22 = pnt2.SquareDistance ( pint );
2119 if ( dist21 < tol1 * tol1 || dist22 < tol2 * tol2 ) continue;
2120 newtol = 1.001 * Sqrt ( Min ( dist21, dist22 ) ); //:f8
2122 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2125 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2126 Standard_Real firstpar = points2d.Value(i).ParamOnFirst();
2127 Standard_Real lastpar = points2d.Value(i).ParamOnSecond();
2128 if(firstpar > prevFirst && lastpar < prevLast) continue;
2129 if ( RemoveLoop (E, Face(), points2d.Value(i), tolfact,
2130 Min( MaxTolerance(), Max(newtol,Precision()) ),
2131 myRemoveLoopMode==0 ) ) {
2132 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2133 loopRemoved = Standard_True;
2134 prevFirst = firstpar;
2136 continue; // repeat of fix on that edge required (to be done by caller)
2139 if ( newtol < MaxTolerance() ) {
2140 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2142 if ( dist21 < dist22 ) B.UpdateVertex ( V1, tol1 = newtol );
2143 else B.UpdateVertex ( V2, tol2 = newtol );
2145 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2148 // after RemoveLoop, check that self-intersection disappeared
2149 if ( loopRemoved ) {
2150 IntRes2d_SequenceOfIntersectionPoint pnts2d;
2151 TColgp_SequenceOfPnt pnts3d;
2152 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, pnts2d, pnts3d );
2153 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) break;
2154 //points3d.Append(pnts3d);
2155 //points2d.Append(pnts2d);
2159 B.UpdateEdge ( E, c2d, Face(), 0. );
2160 B.Range ( E, Face(), f2d, l2d );
2161 //newtol+=Precision();
2169 //===============================================
2170 // RemoveLoopMode = 1 , insert vertex
2171 //===============================================
2172 if (myRemoveLoopMode == 1) {
2173 // after fixing will be nb+1 edges
2174 Standard_Boolean loopRemoved;
2175 // create a sequence of resulting edges
2176 Handle (TopTools_HSequenceOfShape) TTSS = new TopTools_HSequenceOfShape;
2179 loopRemoved = Standard_False;
2180 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2183 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2185 if ( RemoveLoop (E, Face(), points2d.Value(1),E1,E2) ) {
2186 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2187 loopRemoved = Standard_True;
2190 newtol = Max(BRep_Tool::Tolerance(E1),BRep_Tool::Tolerance(E2));
2193 newtol = BRep_Tool::Tolerance(E2);
2199 if ( newtol > MaxTolerance() )
2200 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2202 ShapeExtend_WireData sewd;
2203 for (Standard_Integer i=1 ; i <= TTSS->Length(); i++) {
2204 sewd.Add(TopoDS::Edge(TTSS->Value(i)));
2206 if (! Context().IsNull()) {
2207 Context()->Replace ( E, sewd.Wire() );
2211 WireData()->Remove(num >0 ? num : NbEdges());
2212 WireData()->Add(sewd.Wire(), num >0 ? num : NbEdges());
2215 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
2219 if ( LastFixStatus ( ShapeExtend_DONE ) && ! myShape.IsNull() ) {
2220 SendWarning ( E, Message_Msg ( "FixAdvWire.FixIntersection.MSG5" ) );// Edge was self-intersecting, corrected
2223 return LastFixStatus ( ShapeExtend_DONE );
2227 //=======================================================================
2228 //function : ComputeLocalDeviation
2229 //purpose : auxilary
2230 //=======================================================================
2231 static Standard_Real ComputeLocalDeviation (const TopoDS_Edge &edge,
2232 const gp_Pnt &pint,const gp_Pnt &pnt,
2233 Standard_Real f, Standard_Real l,
2234 const TopoDS_Face &face )
2236 ShapeAnalysis_Edge sae;
2237 Handle(Geom_Curve) c3d;
2239 if ( ! sae.Curve3d ( edge, c3d, a, b, Standard_False ) ) return RealLast();
2241 gp_Lin line ( pint, gp_Vec ( pint, pnt ) );
2243 Handle(Geom2d_Curve) Crv;
2244 Standard_Real fp,lp;
2245 if ( sae.PCurve(edge,face,Crv,fp,lp,Standard_False) ) {
2246 if(Crv->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
2247 Handle(Geom2d_TrimmedCurve) tc = Handle(Geom2d_TrimmedCurve)::DownCast(Crv);
2248 if(tc->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Line))) {
2249 f = a + (f-fp)*(b-a)/(lp-fp);
2250 l = a + (l-fp)*(b-a)/(lp-fp);
2255 const Standard_Integer NSEG = 10;
2256 Standard_Real step = ( l - f ) / NSEG;
2257 Standard_Real dev = 0.;
2258 for ( Standard_Integer i=1; i < NSEG; i++ ) {
2259 gp_Pnt p = c3d->Value ( f + i * step );
2260 Standard_Real d = line.Distance ( p );
2261 if ( dev < d ) dev = d;
2266 //=======================================================================
2267 //function : FixIntersectingEdges
2269 //=======================================================================
2271 Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num)
2273 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2274 if ( ! IsReady() || NbEdges() <2 ) return Standard_False;
2277 IntRes2d_SequenceOfIntersectionPoint points2d;
2278 TColgp_SequenceOfPnt points3d;
2279 TColStd_SequenceOfReal errors;
2280 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2281 if (theAdvAnalyzer.IsNull()) return Standard_False;
2282 theAdvAnalyzer->CheckIntersectingEdges ( num, points2d, points3d, errors );
2283 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2284 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2286 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2288 //rln 03/02/98: CSR#BUC50004 entity 56 (to avoid later inserting lacking edge)
2289 //:l0 Standard_Boolean isLacking = myAnalyzer->CheckLacking ( num );
2291 // action: increase tolerance of vertex
2293 Handle(ShapeExtend_WireData) sbwd = WireData();
2294 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2295 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2296 TopoDS_Edge E1 = sbwd->Edge(n1);
2297 TopoDS_Edge E2 = sbwd->Edge(n2);
2298 Standard_Boolean isForward1 = ( E1.Orientation() == TopAbs_FORWARD );
2299 Standard_Boolean isForward2 = ( E2.Orientation() == TopAbs_FORWARD );
2300 Standard_Real a1, b1, a2, b2;
2301 BRep_Tool::Range ( E1, Face(), a1, b1 );
2302 BRep_Tool::Range ( E2, Face(), a2, b2 );
2304 ShapeAnalysis_Edge sae;
2305 TopoDS_Vertex Vp = sae.FirstVertex ( E1 );
2306 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2307 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2308 TopoDS_Vertex Vn = sae.LastVertex ( E2 );
2310 Standard_Real tol = BRep_Tool::Tolerance ( V1 );
2311 gp_Pnt pnt = BRep_Tool::Pnt ( V1 );
2313 Standard_Real prevRange1 = RealLast(), prevRange2 = RealLast();
2314 Standard_Boolean cutEdge1 = Standard_False, cutEdge2 = Standard_False;
2315 Standard_Boolean IsCutLine = Standard_False;
2319 Standard_Integer nb = points3d.Length();
2320 for ( Standard_Integer i=1; i <= nb; i++ ) {
2321 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2322 Standard_Real param1 = ( num ==1 ? IP.ParamOnSecond() : IP.ParamOnFirst() );
2323 Standard_Real param2 = ( num ==1 ? IP.ParamOnFirst() : IP.ParamOnSecond() );
2325 Standard_Real newRange1 = Abs ( ( isForward1 ? a1 : b1 ) - param1 );
2326 Standard_Real newRange2 = Abs ( ( isForward2 ? b2 : a2 ) - param2 );
2327 if ( newRange1 > prevRange1 && newRange2 > prevRange2 ) continue;
2329 gp_Pnt pint = points3d.Value(i);
2330 Standard_Real rad = errors.Value(i);
2331 Standard_Real newtol = 1.0001 * ( pnt.Distance ( pint ) + rad );
2333 // GeomAdaptor_Surface& Ads = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface();
2335 //:r8 abv 12 Apr 99: try increasing tolerance of edge
2336 if ( ! myTopoMode && newtol > tol ) {
2337 Standard_Real te1 = rad + ComputeLocalDeviation (E1, pint, pnt,
2338 param1, ( isForward1 ? b1 : a1 ), Face() );
2339 Standard_Real te2 = rad + ComputeLocalDeviation (E2, pint, pnt,
2340 ( isForward2 ? a2 : b2 ), param2, Face() );
2341 Standard_Real maxte = Max ( te1, te2 );
2342 if ( maxte < MaxTolerance() && maxte < newtol ) {
2343 if ( BRep_Tool::Tolerance(E1) < te1 || BRep_Tool::Tolerance(E2) < te2 ) {
2345 // cout << "Warning: ShapeFix_Wire::FixIE: edges tolerance increased: (" <<
2346 // te1 << ", " << te2 << ") / " << newtol << endl;
2348 B.UpdateEdge ( E1, 1.000001 * te1 );
2349 B.UpdateVertex ( sae.FirstVertex ( E1 ), 1.000001 * te1 );
2350 B.UpdateVertex ( sae.LastVertex ( E1 ), 1.000001 * te1 );
2351 B.UpdateEdge ( E2, 1.000001 * te2 );
2352 B.UpdateVertex ( sae.FirstVertex ( E2 ), 1.000001 * te2 );
2353 B.UpdateVertex ( sae.LastVertex ( E2 ), 1.000001 * te2 );
2354 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
2356 newtol = 1.000001 * maxte;
2360 if ( myTopoMode || newtol <= MaxTolerance() ) {
2361 prevRange1 = newRange1;
2362 prevRange2 = newRange2;
2363 Standard_Boolean locMayEdit = myTopoMode;
2364 if ( myTopoMode ) { //:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586: do not cut edges because of influence on adjacent faces
2365 ShapeFix_SplitTool aTool;
2366 //if ( ! ShapeFix::CutEdge ( E1, ( isForward1 ? a1 : b1 ), param1, Face(), IsCutLine ) ) {
2367 if ( ! aTool.CutEdge ( E1, ( isForward1 ? a1 : b1 ), param1, Face(), IsCutLine ) ) {
2368 if ( V1.IsSame ( Vp ) )
2369 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
2370 else locMayEdit = Standard_False;
2372 else cutEdge1 = Standard_True; //:h4
2373 //if ( ! ShapeFix::CutEdge ( E2, ( isForward2 ? b2 : a2 ), param2, Face(), IsCutLine ) ) {
2374 if ( ! aTool.CutEdge ( E2, ( isForward2 ? b2 : a2 ), param2, Face(), IsCutLine ) ) {
2375 if ( V2.IsSame ( Vn ) )
2376 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2377 else locMayEdit = Standard_False;
2379 else cutEdge2 = Standard_True; //:h4
2382 newRange1 <= prevRange1 && newRange2 <= prevRange2 && //rln 09/01/98
2383 BRep_Tool::SameParameter ( E1 ) &&
2384 BRep_Tool::SameParameter ( E2 ) ) {
2385 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2388 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2392 else if(IsCutLine) {
2393 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2396 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2400 else { // else increase tolerance
2401 if (tol < newtol) { //rln 07.04.99 CCI60005-brep.igs
2402 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2407 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2410 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
2412 B.UpdateVertex ( V1, pnt, tol );
2413 B.UpdateVertex ( V2, pnt, tol );
2415 //:h4: make edges SP (after all cuts: t4mug.stp #3730+#6460)
2416 if ( cutEdge1 ) myFixEdge->FixSameParameter ( E1 );
2417 if ( cutEdge2 && !IsCutLine ) myFixEdge->FixSameParameter ( E2 );
2418 if ( cutEdge1 || cutEdge2 ) {
2419 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2421 if ( ! myShape.IsNull() ) {
2422 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
2424 return Standard_True;
2427 //=======================================================================
2428 //function : FixIntersectingEdges
2430 //=======================================================================
2431 //pdn 17.03.99 fixing non ajacent intersection by increasing tolerance of vertex
2433 Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num1,
2434 const Standard_Integer num2)
2436 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2437 if ( !IsReady() ) return Standard_False;
2438 IntRes2d_SequenceOfIntersectionPoint points2d;
2439 TColgp_SequenceOfPnt points3d;
2440 TColStd_SequenceOfReal errors;
2441 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2442 if (theAdvAnalyzer.IsNull()) return Standard_False;
2443 theAdvAnalyzer->CheckIntersectingEdges ( num1, num2, points2d, points3d, errors);
2444 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2445 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2447 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2448 TColgp_Array1OfPnt vertexPoints(1,4);
2449 TColStd_Array1OfReal vertexTolers(1,4);
2450 TColStd_Array1OfReal newTolers(1,4);
2451 TopTools_Array1OfShape vertices(1,4);
2454 Handle(ShapeExtend_WireData) sbwd = WireData();
2455 Standard_Integer n2 = ( num1 >0 ? num1 : sbwd->NbEdges() );
2456 Standard_Integer n1 = ( num2 >1 ? num2 : sbwd->NbEdges() );
2457 if(n1==n2) return Standard_False;
2459 TopoDS_Edge edge1 = sbwd->Edge(n1);
2460 TopoDS_Edge edge2 = sbwd->Edge(n2);
2462 ShapeAnalysis_Edge sae;
2463 vertices(1) = sae.FirstVertex(edge1);
2464 vertices(2) = sae.LastVertex(edge1);
2465 vertices(3) = sae.FirstVertex(edge2);
2466 vertices(4) = sae.LastVertex(edge2);
2468 Standard_Integer i; // svv Jan11 2000 : porting on DEC
2469 for (i = 1; i <=4; i++) {
2470 vertexPoints(i) = BRep_Tool::Pnt(TopoDS::Vertex(vertices(i)));
2471 vertexTolers(i) = BRep_Tool::Tolerance(TopoDS::Vertex(vertices(i)));
2474 Standard_Real aNewTolEdge1 = 0.0, aNewTolEdge2 = 0.0;
2475 Standard_Integer nb = points3d.Length();
2476 for ( i=1; i <= nb; i++ ) {
2477 gp_Pnt pint = points3d.Value(i);
2479 // searching for the nearest vertexies to the intersection point
2480 Standard_Real aVtx1Param=0., aVtx2Param=0.;
2481 Standard_Integer aVC1, aVC2;
2482 Standard_Real aMinDist = RealLast();
2483 gp_Pnt aNearestVertex;
2484 Standard_Real aNecessaryVtxTole = 0.0;
2485 for(aVC1 = 1; aVC1 <= 2; aVC1++) {
2486 for(aVC2 = 3; aVC2 <= 4; aVC2++) {
2488 Standard_Real aVtxIPDist = pint.Distance(vertexPoints(aVC1));
2489 Standard_Real aVtxVtxDist = vertexPoints(aVC1).Distance(vertexPoints(aVC2));
2490 if(aMinDist > aVtxIPDist && aVtxIPDist > aVtxVtxDist) {
2491 aNecessaryVtxTole = aVtxVtxDist;
2492 aNearestVertex = vertexPoints(aVC1);
2493 aMinDist = aVtxIPDist;
2494 aVtx1Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC1)),edge1);
2495 aVtx2Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC2)),edge2);
2500 // calculation of necessary tolerances of edges
2501 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2502 Standard_Real param1 = IP.ParamOnFirst();
2503 Standard_Real param2 = IP.ParamOnSecond();
2504 Handle(Geom_Curve) aCurve1, aCurve2;
2506 TopLoc_Location L1, L2;
2507 aCurve1 = BRep_Tool::Curve(edge1, L1, f, l);
2508 aCurve2 = BRep_Tool::Curve(edge2, L2, f, l);
2510 // if aMinDist lower than resolution than the intersection point lyes inside the vertex
2511 if(aMinDist < gp::Resolution())
2514 Standard_Real aMaxEdgeTol1 = 0.0, aMaxEdgeTol2 = 0.0;
2515 if(aMinDist < RealLast() && !aCurve1.IsNull() && !aCurve2.IsNull())
2517 gp_Lin aLig(aNearestVertex, gp_Vec(aNearestVertex, pint));
2518 Standard_Integer aPointsC;
2519 Standard_Real du1 = 0.05*(param1 - aVtx1Param);
2520 Standard_Real du2 = 0.05*(param2 - aVtx2Param);
2521 Standard_Real tole1=BRep_Tool::Tolerance(edge1);
2522 Standard_Real tole2=BRep_Tool::Tolerance(edge2);
2523 for(aPointsC = 2; aPointsC < 19; aPointsC++)
2525 Standard_Real u = aVtx1Param + aPointsC * du1;
2526 gp_Pnt P1 = aCurve1->Value(u);
2527 P1.Transform(L1.Transformation());
2528 Standard_Real d1 = aLig.Distance(P1) * 2.0000001;
2529 if(d1 > tole1 && d1 > aMaxEdgeTol1)
2532 u = aVtx2Param + aPointsC * du2;
2533 gp_Pnt P2 = aCurve2->Value(u);
2534 P2.Transform(L2.Transformation());
2535 Standard_Real d2 = aLig.Distance(P2) * 2.0000001;
2536 if(d2 > tole2 && d2 > aMaxEdgeTol2)
2539 if(aMaxEdgeTol1 == 0.0 && aMaxEdgeTol2 == 0.0) continue;
2540 // if the vertexies are far than tolerances so
2541 // we do not need to increase edge tolerance
2542 if(aNecessaryVtxTole > Max(aMaxEdgeTol1, tole1) ||
2543 aNecessaryVtxTole > Max(aMaxEdgeTol2, tole2))
2550 Standard_Real rad = errors.Value(i);
2551 Standard_Real finTol = RealLast();
2552 Standard_Integer rank=1;
2553 for(Standard_Integer j=1; j<=4; j++) {
2554 Standard_Real newtol = 1.0001 * ( pint.Distance (vertexPoints(j)) + rad );
2560 if(finTol <= MaxTolerance()) {
2561 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1);
2562 if(newTolers(rank) < finTol)
2564 if(Max(aMaxEdgeTol1, aMaxEdgeTol2) < finTol && (aMaxEdgeTol1 > 0 || aMaxEdgeTol2 > 0))
2566 aNewTolEdge1 = Max(aNewTolEdge1, aMaxEdgeTol1);
2567 aNewTolEdge2 = Max(aNewTolEdge2, aMaxEdgeTol2);
2571 newTolers(rank) = finTol;
2575 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2580 // update of tolerances of edges
2581 if(aNewTolEdge1 > 0)
2583 for(i = 1; i <= 2; i++)
2584 if(aNewTolEdge1 > Max(vertexTolers(i), newTolers(i)))
2585 newTolers(i) = aNewTolEdge1;
2586 B.UpdateEdge(edge1, aNewTolEdge1);
2588 if(aNewTolEdge2 > 0)
2590 for(i = 3; i <= 4; i++)
2591 if(aNewTolEdge2 > Max(vertexTolers(i), newTolers(i)))
2592 newTolers(i) = aNewTolEdge2;
2593 B.UpdateEdge(edge2, aNewTolEdge2);
2596 // update of tolerances of vertexies
2597 for(i = 1; i <=4; i++)
2598 if(newTolers(i)>0) B.UpdateVertex(TopoDS::Vertex(vertices(i)),newTolers(i));
2600 if ( ! myShape.IsNull() ) {
2601 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
2603 return Standard_True;
2606 //=======================================================================
2607 //function : FixLacking
2608 //purpose : Test if two adjucent edges are disconnected in 2d (while connected
2609 // in 3d), and in that case either increase tolerance of the vertex or
2610 // add a new edge (straight in 2d space), in order to close wire in 2d.
2611 // Returns True if edge was added or tolerance was increased.
2612 //NOTE : Is to be run after FixDegenerated
2613 //Algorithm: 1. Compute the 2d gap between edges and calculate a tolerance
2614 // which should have vertex in order to comprise the gap
2615 // (using GeomAdaptor_Surface); computed value is inctol
2616 // 2. If inctol < tol of vertex, return False (everything is OK)
2617 // 3. If inctol < Precision, just increase tolerance of vertex to inctol
2618 // 4. Else (if both edges are not degenerated) try to add new edge
2619 // with straight pcurve (in order to close the gap):
2620 // a) if flag MayEdit is False
2621 // 1. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2622 // 2. else try to add degenerated edge (check that middle point of
2623 // that pcurveis inside the vertex)
2624 // b) if MayEdit is True
2625 // 1. try to replace big vertex with two new small vertices
2626 // connected by new edge. This is made if there is a 3d space
2627 // between ends of adjacent edges.
2628 // 2. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2629 // 3. else add either degenerated or closed edge (if middle point
2630 // of a pcurve of a new edge is inside the vertex, then
2631 // degenerated edge is added, else new edge is closed).
2632 // 5. If new edge cannot be added, but inctol < MaxTolerance,
2633 // when increase tolerance of vertex to a value of inctol
2634 //Short list of some internal variables:
2635 // tol - tolerance of vertex
2636 // tol2d - tolerance in parametric space of the surface corresponding to 2*tol
2637 // dist2d - distance between ends of pcurves of edges (2d)
2638 // inctol - tolerance required for vertex to close 2d gap (=tol*dist2d/tol2d)
2639 // tol1, tol2 - tolerances of edges, tol0 = tol1 + tol2
2640 // p3d1, p3d2 - ends of 3d curves of edges
2641 //=======================================================================
2642 //:h2 abv 28 May 98: merged modifications by abv 22 Apr 98, gka 27 May 98
2643 // and pdn 25 May 98 concerning lacking closed or degenerated edges
2644 // Example files: r0501_pe #107813, UKI60107-6 250, UKI60107-3 1577.
2646 //:s2 abv 21 Apr 99: add functionality for bending pcurve
2647 static Standard_Boolean TryBendingPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
2648 const gp_Pnt2d p2d, const Standard_Boolean end,
2649 Handle(Geom2d_Curve) &c2d,
2650 Standard_Real &first, Standard_Real &last,
2653 ShapeAnalysis_Edge sae;
2654 if ( ! sae.PCurve ( E, face, c2d, first, last, Standard_False ) ) return Standard_False;
2659 Handle(Geom2d_BSplineCurve) bs;
2660 if ( c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) )
2661 bs = Handle(Geom2d_BSplineCurve)::DownCast(c2d->Copy());
2662 else // if ( c2d->IsKind(STANDARD_TYPE(Geom2d_Line)) )
2664 Handle(Geom2d_TrimmedCurve) trim = new Geom2d_TrimmedCurve ( c2d, first, last );
2665 bs = Geom2dConvert::CurveToBSplineCurve ( trim );
2667 if ( bs.IsNull() ) return Standard_False;
2669 Standard_Real par = ( end ? last : first );
2670 if ( fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2671 bs->Multiplicity(1) > bs->Degree() ) bs->SetPole ( 1, p2d );
2672 else if ( fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2673 bs->Multiplicity(bs->NbKnots()) > bs->Degree() ) bs->SetPole ( bs->NbPoles(), p2d );
2675 bs->Segment ( first, last );
2676 if (fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2677 bs->Multiplicity(1) > bs->Degree()) bs->SetPole ( 1, p2d );
2678 else if (fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2679 bs->Multiplicity(bs->NbKnots()) > bs->Degree()) bs->SetPole ( bs->NbPoles(), p2d );
2680 else return Standard_False;
2684 catch ( Standard_Failure ) {
2686 cout << "Warning: ShapeFix_Wire::FixLacking: Exception in Geom2d_BSplineCurve::Segment()" << endl;
2688 return Standard_False;
2692 if ( ! TryNewPCurve ( E, face, c2d, first, last, tol ) ) return Standard_False;
2693 return Standard_True;
2697 //=======================================================================
2698 //function : FixLacking
2700 //=======================================================================
2702 Standard_Boolean ShapeFix_Wire::FixLacking (const Standard_Integer num,
2703 const Standard_Boolean force)
2705 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2706 if ( ! IsReady() ) return Standard_False;
2709 // First phase: analysis whether the problem (gap) exists
2710 gp_Pnt2d p2d1, p2d2;
2711 Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer)->CheckLacking ( num, ( force ? Precision() : 0. ), p2d1, p2d2 );
2712 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2713 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2715 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2718 // Second phase: collection of data necessary for further analysis
2720 Handle(ShapeExtend_WireData) sbwd = WireData();
2721 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2722 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2723 TopoDS_Edge E1 = sbwd->Edge(n1);
2724 TopoDS_Edge E2 = sbwd->Edge(n2);
2726 ShapeAnalysis_Edge sae;
2727 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2728 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2729 Standard_Real tol = Max ( BRep_Tool::Tolerance ( V1 ), BRep_Tool::Tolerance ( V2 ) );
2731 Standard_Real Prec = Precision();
2732 Standard_Real dist2d = myAnalyzer->MaxDistance2d();
2733 Standard_Real inctol = myAnalyzer->MaxDistance3d();
2735 TopoDS_Face face = myAnalyzer->Face();
2736 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
2739 Standard_Real tol1=::Precision::Confusion(), tol2=::Precision::Confusion(); //SK
2742 //:s2 abv 21 Apr 99: Speculation: try bending pcurves
2743 Standard_Real bendtol1 = 0., bendtol2 = 0.;
2744 Handle(Geom2d_Curve) bendc1, bendc2;
2745 Standard_Real bendf1 = 0., bendl1 = 0., bendf2 = 0., bendl2 = 0.;
2746 if ( myGeomMode && ! BRep_Tool::IsClosed(E1,face) && ! BRep_Tool::IsClosed(E2,face) ) {
2747 gp_Pnt2d p2d = 0.5 * ( p2d1.XY() + p2d2.XY() );
2748 Standard_Boolean ok1 = TryBendingPCurve (E1, face, p2d, E1.Orientation() == TopAbs_FORWARD,
2749 bendc1, bendf1, bendl1, bendtol1);
2750 Standard_Boolean ok2 = TryBendingPCurve (E2, face, p2d, E2.Orientation() == TopAbs_REVERSED,
2751 bendc2, bendf2, bendl2, bendtol2);
2752 if ( ok1 && ! ok2 ) {
2753 bendtol2 = BRep_Tool::Tolerance(E2);
2754 ok1 = TryBendingPCurve (E1, face, p2d2, E1.Orientation() == TopAbs_FORWARD,
2755 bendc1, bendf1, bendl1, bendtol1);
2757 else if ( ! ok1 && ok2 ) {
2758 bendtol1 = BRep_Tool::Tolerance(E1);
2759 ok2 = TryBendingPCurve (E2, face, p2d1, E2.Orientation() == TopAbs_FORWARD,
2760 bendc2, bendf2, bendl2, bendtol2);
2762 if ( ! ok1 && ! ok2 ) bendc1.Nullify();
2766 // Third phase: analyse how to fix the problem
2768 // selector of solutions
2769 Standard_Boolean doIncrease = Standard_False; // increase tolerance
2770 Standard_Boolean doAddLong = Standard_False; // add long 3d edge in replacement of a vertex
2771 Standard_Boolean doAddClosed = Standard_False; // add closed 3d edge
2772 Standard_Boolean doAddDegen = Standard_False; // add degenerated edge
2773 Standard_Boolean doBend = Standard_False; //:s2 bend pcurves
2775 // if bending is OK with existing tolerances of edges, take it
2776 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2777 ( ( bendtol1 < BRep_Tool::Tolerance(E1) &&
2778 bendtol2 < BRep_Tool::Tolerance(E2) ) ||
2779 ( inctol < Prec && bendtol1 < inctol && bendtol2 < inctol ) ) )
2780 doBend = Standard_True;
2782 // is it OK just to increase tolerance (to a value less than preci)?
2783 else if ( inctol < Prec ) doIncrease = Standard_True;
2785 // If increase is not OK or force, try to find other solutions (adding edge)
2786 else if ( ! BRep_Tool::Degenerated ( E2 ) && ! BRep_Tool::Degenerated ( E1 ) ) {
2788 // analyze the 3d space btw edges: is it enough to add long 3d edge?
2790 Handle(Geom_Curve) c3d;
2792 if ( ! sae.Curve3d ( E1, c3d, a, b, Standard_True ) ) { // cannot work
2793 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2794 return Standard_False;
2796 p3d1 = c3d->Value ( b );
2797 Standard_Real dist2d3d1 = p3d1.Distance ( surf->Value ( p2d1 ) );
2798 if ( ! sae.Curve3d ( E2, c3d, a, b, Standard_True ) ) { // cannot work
2799 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2800 return Standard_False;
2802 p3d2 = c3d->Value ( a );
2803 Standard_Real dist2d3d2 = p3d2.Distance ( surf->Value ( p2d2 ) );
2805 tol1 = Max ( BRep_Tool::Tolerance ( E1 ), dist2d3d1 );
2806 tol2 = Max ( BRep_Tool::Tolerance ( E2 ), dist2d3d2 );
2807 //:c5 Standard_Real tol0 = Max ( tol1 + tol2, thepreci );
2808 Standard_Real tol0 = tol1 + tol2; //:c5 abv 26 Feb 98: CTS17806 #44418
2809 Standard_Real dist3d2 = p3d1.SquareDistance ( p3d2 );
2811 // is it OK to add a long 3d edge?
2812 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) && //:81 abv 20 Jan 98: don`t add back-going edges (zigzags)
2813 dist3d2 > 1.25 * tol0 * tol0 &&
2814 ( force || dist3d2 > Prec * Prec || inctol > MaxTolerance() ) ) {
2815 doAddLong = Standard_True;
2819 //:h6 abv 25 Jun 98: BUC40132 6361: try to increase tol up to MaxTol if not add
2820 if ( ! doAddLong && inctol < MaxTolerance() &&
2821 ! myAnalyzer->Surface()->IsDegenerated ( p2d1, p2d2, 2.*tol, 10. ) ) { //:p7
2822 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2823 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
2824 else doIncrease = Standard_True;
2828 // else try to add either degenerated or closed edge
2829 if ( ! doAddLong ) {
2830 gp_Pnt pV = 0.5 * ( BRep_Tool::Pnt(V1).XYZ() + BRep_Tool::Pnt(V2).XYZ() );
2831 gp_Pnt pm = myAnalyzer->Surface()->Value ( 0.5 * ( p2d1.XY() + p2d2.XY() ) );
2833 Standard_Real dist = pV.Distance ( pm );
2834 if ( dist <= tol ) doAddDegen = Standard_True;
2835 else if ( myTopoMode ) doAddClosed = Standard_True;
2836 else if ( dist <= MaxTolerance() ) { //:r7 abv 12 Apr 99: t3d_opt.stp #14245 after S4136
2837 doAddDegen = Standard_True;
2838 doIncrease = Standard_True;
2844 else if ( !BRep_Tool::Degenerated(E2) && BRep_Tool::Degenerated(E1) ) {
2845 // create new degenerated edge and replace E1 to new edge
2847 else if ( BRep_Tool::Degenerated(E2) && !BRep_Tool::Degenerated(E1) ) {
2848 // create new degenerated edge and replace E2 to new edge
2852 // Third phase - do the fixes
2856 if ( doAddLong || doAddDegen || doAddClosed ) {
2858 // construct new vertices
2859 TopoDS_Vertex newV1, newV2;
2861 newV1 = BRepBuilderAPI_MakeVertex ( p3d1 );
2863 newV2 = BRepBuilderAPI_MakeVertex ( p3d2 );
2864 B.UpdateVertex ( newV1, 1.001 * tol1 );
2865 B.UpdateVertex ( newV2, 1.001 * tol2 );
2874 B.MakeEdge ( edge );
2875 if ( doAddDegen ) B.Degenerated ( edge, Standard_True ); // sln: do it before adding curve
2876 gp_Vec2d v12 ( p2d1, p2d2 );
2877 Handle(Geom2d_Line) theLine2d = new Geom2d_Line ( p2d1, gp_Dir2d ( v12 ) );
2878 B.UpdateEdge ( edge, theLine2d, face, ::Precision::Confusion() );
2879 B.Range ( edge, face, 0, dist2d );
2880 B.Add ( edge, newV1.Oriented ( TopAbs_FORWARD ) );
2881 B.Add ( edge, newV2.Oriented ( TopAbs_REVERSED ) );
2882 ShapeBuild_Edge sbe;
2883 if ( ! doAddDegen && ! sbe.BuildCurve3d ( edge ) ) {
2884 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
2885 return Standard_False;
2888 // if long edge is added, replace vertices of adjacent edges
2891 // replace 1st edge (n1==n2 - special case: wire consists of one edge)
2892 TopoDS_Edge edge1 = sbe.CopyReplaceVertices ( E1,
2893 ( n1 == n2 ? newV2 : TopoDS_Vertex() ), newV1 );
2894 sbwd->Set ( edge1, n1 );
2895 if ( ! Context().IsNull() ) {
2896 Context()->Replace ( E1, edge1 );
2897 // actually, this will occur only in context of single face
2898 // hence, recording to ReShape is rather for tracking modifications
2899 // than for keeping sharing
2900 Context()->Replace ( V1, newV1.Oriented ( V1.Orientation() ) );
2901 if ( ! V1.IsSame ( V2 ) ) {
2902 Context()->Replace ( V2, newV2.Oriented ( V2.Orientation() ) );
2907 TopoDS_Edge edge2 = sbe.CopyReplaceVertices ( E2, newV2, TopoDS_Vertex() );
2908 sbwd->Set ( edge2, n2 );
2909 if ( ! Context().IsNull() ) Context()->Replace ( E2, edge2 );
2911 if ( ! Context().IsNull() ) UpdateWire();
2916 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
2918 cout << "Warning: ShapeFix_Wire::FixLacking: degenerated edge added" << endl;
2921 else if ( ! doAddLong ) {
2922 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2924 sbwd->Add ( edge, n2 );
2925 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2928 // else try to increase tol up to MaxTol
2929 else if ( inctol > tol && inctol < MaxTolerance() ) {
2930 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2931 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
2932 else doIncrease = Standard_True;
2936 if ( doBend ) { //:s2 abv 21 Apr 99
2937 B.UpdateEdge ( E1, bendc1, face, bendtol1 );
2938 B.Range ( E1, face, bendf1, bendl1 );
2939 B.UpdateEdge ( E2, bendc2, face, bendtol2 );
2940 B.Range ( E2, face, bendf2, bendl2 );
2941 B.UpdateVertex ( sae.FirstVertex(E1), bendtol1 );
2942 B.UpdateVertex ( sae.LastVertex(E1), bendtol1 );
2943 B.UpdateVertex ( sae.FirstVertex(E2), bendtol2 );
2944 B.UpdateVertex ( sae.LastVertex(E2), bendtol2 );
2945 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
2946 //:s3 abv 22 Apr 99: PRO7187 #11534: self-intersection not detected unitil curve is bent (!)
2947 FixSelfIntersectingEdge ( n1 );
2948 FixSelfIntersectingEdge ( n2 );
2949 FixIntersectingEdges ( n2 ); //skl 24.04.2003 for OCC58
2951 cout << "Info: ShapeFix_Wire::FixLacking: Bending pcurves" << endl;
2953 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
2956 // increase vertex tolerance
2958 B.UpdateVertex ( V1, 1.001 * inctol );
2959 B.UpdateVertex ( V2, 1.001 * inctol );
2960 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2963 if ( LastFixStatus ( ShapeExtend_DONE ) ) return Standard_True;
2965 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2966 return Standard_False;
2969 //=======================================================================
2970 //function : FixNotchedEdges
2972 //=======================================================================
2974 Standard_Boolean ShapeFix_Wire::FixNotchedEdges()
2976 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2977 if ( ! IsReady() ) return Standard_False;
2979 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2980 TopoDS_Face face = Face();
2981 if ( ! Context().IsNull() ) UpdateWire();
2982 Handle(ShapeExtend_WireData) sewd = WireData();
2984 for (Standard_Integer i = 1; i <= NbEdges() && NbEdges() > 2; i++) {
2985 Standard_Real param;
2986 Standard_Integer toRemove;
2987 if(theAdvAnalyzer->CheckNotchedEdges(i,toRemove,param,MinTolerance())){
2988 Standard_Integer n2 = (i > 0) ? i : NbEdges();
2989 Standard_Integer n1 = (n2 > 1) ? n2-1 : NbEdges();
2990 Standard_Boolean isRemoveFirst = (n1==toRemove);
2991 Standard_Integer toSplit = (n2==toRemove ? n1 : n2);
2992 TopoDS_Edge splitE = sewd->Edge ( toSplit );
2993 ShapeAnalysis_Edge sae;
2994 Handle(Geom2d_Curve) c2d;
2996 sae.PCurve ( splitE, face, c2d, a, b, Standard_True );
2997 Standard_Real ppar = (isRemoveFirst ? b : a);
2998 ShapeBuild_Edge sbe;
2999 TopAbs_Orientation orient = splitE.Orientation();
3000 if ( Abs(param - ppar) > ::Precision::PConfusion() ) {
3001 //pdn perform splitting of the edge and adding to wire
3003 //pdn check if it is necessary
3004 if( Abs((isRemoveFirst ? a : b)-param) < ::Precision::PConfusion() ) {
3008 Handle(ShapeAnalysis_TransferParametersProj) transferParameters =
3009 new ShapeAnalysis_TransferParametersProj;
3010 transferParameters->SetMaxTolerance(MaxTolerance());
3011 transferParameters->Init(splitE,face);
3012 Standard_Real first, last;
3023 B.MakeVertex(Vnew,Analyzer()->Surface()->Value(c2d->Value(param)),::Precision::Confusion());
3024 TopoDS_Edge wE = splitE;
3025 wE.Orientation ( TopAbs_FORWARD );
3026 TopoDS_Shape aTmpShape = Vnew.Oriented(TopAbs_REVERSED); //for porting
3027 TopoDS_Edge newE1 = sbe.CopyReplaceVertices ( wE, sae.FirstVertex(wE), TopoDS::Vertex(aTmpShape) );
3028 sbe.CopyPCurves ( newE1, wE );
3029 transferParameters->TransferRange(newE1,first,param,Standard_True);
3030 B.SameRange(newE1,Standard_False);
3031 B.SameParameter(newE1,Standard_False);
3032 aTmpShape = Vnew.Oriented(TopAbs_FORWARD);
3033 TopoDS_Edge newE2 = sbe.CopyReplaceVertices ( wE, TopoDS::Vertex(aTmpShape),sae.LastVertex(wE) );
3034 sbe.CopyPCurves ( newE2, wE );
3035 transferParameters->TransferRange(newE2,param,last,Standard_True);
3036 B.SameRange(newE2,Standard_False);
3037 B.SameParameter(newE2,Standard_False);
3039 if ( !Context().IsNull() ) {
3044 Context()->Replace ( wE, wire );
3047 newE1.Orientation(orient);
3048 newE2.Orientation(orient);
3049 if (orient==TopAbs_REVERSED){ TopoDS_Edge tmp = newE2; newE2 = newE1; newE1=tmp;}
3051 Standard_Boolean isRemoveLast = ((n1==NbEdges())&&(n2==1));
3052 sewd->Set ( newE1, toSplit);
3053 sewd->Add ( newE2, (toSplit==NbEdges() ? 0 : toSplit+1));
3055 FixDummySeam(isRemoveLast ? NbEdges() : toRemove);
3056 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
3062 if(!Context().IsNull()) //skl 07.03.2002 for OCC180
3064 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
3067 myStatusNotches = myLastFixStatus;
3068 return LastFixStatus ( ShapeExtend_DONE );
3071 //=======================================================================
3072 //function : FixDummySeam
3074 //=======================================================================
3076 static void CopyReversePcurves(const TopoDS_Edge& toedge,
3077 const TopoDS_Edge& fromedge,
3078 const Standard_Boolean reverse)
3080 TopLoc_Location fromLoc = fromedge.Location();
3081 TopLoc_Location toLoc = toedge.Location();
3082 for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3083 ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3084 Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3085 if ( fromGC.IsNull() ) continue;
3086 if ( fromGC->IsCurveOnSurface() ) {
3087 Handle(Geom_Surface) surface = fromGC->Surface();
3088 TopLoc_Location L = fromGC->Location();
3089 Standard_Boolean found = Standard_False;
3090 BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3091 Handle(BRep_GCurve) toGC;
3092 for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3093 toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3094 if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3095 surface != toGC->Surface() || L != toGC->Location() ) continue;
3096 found = Standard_True;
3100 Standard_Real fp = fromGC->First();
3101 Standard_Real lp = fromGC->Last();
3102 toGC = Handle(BRep_GCurve)::DownCast(fromGC->Copy());
3103 tolist.Append (toGC);
3104 Handle(Geom2d_Curve) pcurve = Handle(Geom2d_Curve)::DownCast( fromGC->PCurve()->Copy() );
3106 fp = pcurve->ReversedParameter(fp);
3107 lp = pcurve->ReversedParameter(lp);
3109 Standard_Real tmp = fp;
3113 //bug OCC209 invalid location of pcurve in the edge after copying
3114 TopLoc_Location newLoc = (fromLoc*L).Predivided(toLoc);
3115 toGC->SetRange(fp,lp);
3116 toGC->PCurve(pcurve);
3117 toGC->Location(newLoc);
3118 if ( fromGC->IsCurveOnClosedSurface() ) {
3119 pcurve = fromGC->PCurve2();
3120 toGC->PCurve2(Handle(Geom2d_Curve)::DownCast(pcurve->Copy()));
3127 //=======================================================================
3128 //function : HasNewPCurves
3130 //=======================================================================
3131 // Note: This function temporarily not used, because adress to it in
3132 // function FixDummySeam() (see below line 2472) not used too
3134 //static Standard_Boolean HasNewPCurves(const TopoDS_Edge& toedge,
3135 // const TopoDS_Edge& fromedge)
3138 // for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3139 // ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3140 // Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3141 // if ( fromGC.IsNull() ) continue;
3142 // if ( fromGC->IsCurveOnSurface() ) {
3143 // Handle(Geom_Surface) surface = fromGC->Surface();
3144 // TopLoc_Location L = fromGC->Location();
3145 // Standard_Boolean found = Standard_False;
3146 // BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3147 // Handle(BRep_GCurve) toGC;
3148 // for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3149 // toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3150 // if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3151 // surface != toGC->Surface() || L != toGC->Location() ) continue;
3152 // found = Standard_True;
3156 // return Standard_True;
3159 // return Standard_False;
3162 //=======================================================================
3163 //function : FixDummySeam
3165 //=======================================================================
3167 void ShapeFix_Wire::FixDummySeam(const Standard_Integer num)
3169 ShapeAnalysis_Edge sae;
3170 ShapeBuild_Edge sbe;
3171 ShapeBuild_Vertex sbv;
3172 Standard_Integer num1 = (num == NbEdges()) ? 1 : num+1;
3173 Handle(ShapeExtend_WireData) sewd = WireData();
3174 TopoDS_Edge E1 = sewd->Edge(num), E2 = sewd->Edge(num1);
3175 TopoDS_Vertex V1 = sae.FirstVertex(E1), V2 = sae.LastVertex(E2);
3176 TopoDS_Vertex Vm = sbv.CombineVertex ( V1, V2, 1.0001 );
3178 //pnd defining if new pcurves exists
3179 //pdn Temporary not removed
3180 // Standard_Boolean toRemove = !(HasNewPCurves(E1,E2)||HasNewPCurves(E2,E1));
3181 Standard_Boolean toRemove = Standard_False;
3183 //creating new edge with pcurves and new vertex
3184 TopoDS_Vertex Vs = sae.FirstVertex(E2);
3185 if ( Vs.IsSame ( V1 ) || Vs.IsSame ( V2 ) ) Vs = Vm;
3186 TopoDS_Edge newEdge = sbe.CopyReplaceVertices ( E2, Vs, Vm );
3187 CopyReversePcurves(newEdge,E1,E1.Orientation()==E2.Orientation());
3189 B.SameRange(newEdge,Standard_False);
3190 B.SameParameter(newEdge,Standard_False);
3192 if ( !Context().IsNull() ) {
3194 Context()->Remove ( E2 );
3195 Context()->Remove ( E1 );
3198 Context()->Replace ( E2, newEdge );
3199 Context()->Replace ( E1, newEdge.Reversed());
3201 Context()->Replace ( V1, Vm.Oriented(V1.Orientation()) );
3202 Context()->Replace ( V2, Vm.Oriented(V2.Orientation()) );
3205 Standard_Integer next = ( num1 == NbEdges()) ? 1 : num1+1;
3206 Standard_Integer prev = ( num > 1) ? num-1 : NbEdges();
3207 TopoDS_Edge prevE = sewd->Edge(prev), nextE = sewd->Edge(next);
3209 TopoDS_Edge tmpE1=sbe.CopyReplaceVertices( prevE, TopoDS_Vertex(), Vm);
3210 sewd->Set ( tmpE1,prev );
3211 if ( !Context().IsNull() ) Context()->Replace ( prevE, tmpE1);
3213 tmpE1 = sbe.CopyReplaceVertices ( nextE, Vm, TopoDS_Vertex());
3214 sewd->Set ( tmpE1,next );
3215 if ( !Context().IsNull() ) Context()->Replace ( nextE, tmpE1);
3217 //removing edges from wire
3218 Standard_Integer n1, n2;
3220 n1 = num; n2 = num1;
3222 n1 = num1; n2 = num;
3228 //=======================================================================
3229 //function : UpdateWire
3231 //=======================================================================
3233 void ShapeFix_Wire::UpdateWire ()
3235 Handle(ShapeExtend_WireData) sbwd = WireData();
3236 for ( Standard_Integer i=1; i <= sbwd->NbEdges(); i++ ) {
3237 TopoDS_Edge E = sbwd->Edge(i);
3238 TopoDS_Shape S = Context()->Apply ( E );
3239 if ( S == E ) continue;
3240 for ( TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next() )
3241 sbwd->Add ( exp.Current(), i++ );
3242 sbwd->Remove ( i-- );