1 // Copyright (c) 1999-2012 OPEN CASCADE SAS
3 // The content of this file is subject to the Open CASCADE Technology Public
4 // License Version 6.5 (the "License"). You may not use the content of this file
5 // except in compliance with the License. Please obtain a copy of the License
6 // at http://www.opencascade.org and read it completely before using this file.
8 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
9 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11 // The Original Code and all software distributed under the License is
12 // distributed on an "AS IS" basis, without warranty of any kind, and the
13 // Initial Developer hereby disclaims all such warranties, including without
14 // limitation, any warranties of merchantability, fitness for a particular
15 // purpose or non-infringement. Please see the License for the specific terms
16 // and conditions governing the rights and limitations under the License.
18 //:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586:
19 // in FixIntersectingEdges, do not cut edges because of influence on adjacent faces
20 // pdn 17.12.98: shifting whole wire in FixShifted
21 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: removing self-int loops on pcurves
22 // pdn 30.12.98: PRO10366 #210: shifting pcurve between two singularities
23 // pdn 05.01.98: renaming method FixLittle to FixSmall
24 //:l0 abv 10.01.99: remove unused code
25 //:n2 abv 22.01.99: ma-test5.igs: IGES read (pref3d): remove degen edge with no pcurve
26 //:o4 abv 17.02.99: r0301_db.stp #53082: using parameter isClosed in CheckOrder
27 //:p4 abv 23.02.99: PRO9234 #15720: update UV points of edges after shifting pcurves
28 //#67 rln 01.03.99 S4135: ims010.igs treatment of Geom_SphericalSurface together with V-closed surfaces
29 //:p7 abv 10.03.99 PRO18206: using method IsDegenerated() to detect singularity in FixLacking
30 //:r0 abv 19.03.99 PRO7226.stp #489490: remove degenerated edges if several
31 //#78 rln 12.03.99 S4135: checking spatial closure with Precision
32 //#79 rln 15.03.99 S4135: bmarkmdl.igs: check for gap before shifting on singularities
33 // pdn 17.03.99 S4135: implemented fixing not adjacent intersection
34 //#86 rln 22.03.99 S4135: repeat of fix self-intersection if it was fixed just before
35 //%15 pdn 06.04.99 CTS18546-2: fix of self-intersection is repeated while fixed
36 //#3 smh 01.04.99 S4163: Overflow
37 //#4 szv S4163: optimization
38 //:r7 abv 12.04.99 S4136: FixLk: extend cases of adding degenerated edge
39 //:r8 abv 12.04.99 PRO10107.stp #2241: try increasing tolerance of edge for fix IE
40 //:s2 abv 21.04.99 S4136, PRO7978.igs: FixLacking extended to be able to bend pcurves
41 //szv#9:S4244:19Aug99 Methods FixGaps3d and FixGaps2d were introduced
42 //#15 smh 03.04.2000 PRO19800. Checking degenerated point on a surface of revolution.
43 // sln 25.09.2001 checking order of 3d and 2d representation curves
44 // van 19.10.2001 fix of non-adjacent self-intersection corrected to agree with BRepCheck
45 // skl 07.03.2002 fix for bug OCC180
46 // skl 15.05.2002 for OCC208 (if few edges have reference to
47 // one pcurve we make replace pcurve)
48 // PTV 26.06.2002 Remove regressions after fix OCC450
50 #include <ShapeFix_Wire.ixx>
52 #include <Standard_ErrorHandler.hxx>
53 #include <Standard_Failure.hxx>
54 #include <TColStd_Array1OfReal.hxx>
55 #include <TColStd_Array1OfInteger.hxx>
56 #include <Precision.hxx>
58 #include <Geom_Curve.hxx>
59 #include <Geom_TrimmedCurve.hxx>
60 #include <Geom_BSplineCurve.hxx>
61 #include <Geom_SphericalSurface.hxx> //S4135
62 #include <Geom_SurfaceOfRevolution.hxx>
63 #include <GeomAdaptor_Curve.hxx>
64 #include <GeomAdaptor_HSurface.hxx>
65 #include <GeomAdaptor_Surface.hxx>
66 #include <GeomConvert_CompCurveToBSplineCurve.hxx>
67 #include <GeomAPI.hxx>
69 #include <Geom2d_Curve.hxx>
70 #include <Geom2d_TrimmedCurve.hxx>
71 #include <Geom2d_Line.hxx>
72 #include <Geom2d_BSplineCurve.hxx>
73 #include <Geom2dAdaptor_Curve.hxx>
74 #include <Geom2dConvert.hxx>
76 #include <Bnd_Box2d.hxx>
77 #include <Bnd_Array1OfBox2d.hxx>
78 #include <BndLib_Add2dCurve.hxx>
79 #include <IntRes2d_SequenceOfIntersectionPoint.hxx>
80 #include <IntRes2d_IntersectionPoint.hxx>
81 #include <TColgp_Array1OfPnt.hxx>
82 #include <TColgp_SequenceOfPnt.hxx>
86 #include <TopoDS_Vertex.hxx>
87 #include <TopoDS_Edge.hxx>
88 #include <TopTools_Array1OfShape.hxx>
89 #include <TopTools_HSequenceOfShape.hxx>
90 #include <TopExp_Explorer.hxx>
92 #include <BRep_Tool.hxx>
93 #include <BRep_Builder.hxx>
94 #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
95 #include <BRep_TEdge.hxx>
96 #include <BRep_GCurve.hxx>
97 #include <BRepBuilderAPI_MakeEdge.hxx>
98 #include <BRepBuilderAPI_MakeVertex.hxx>
99 #include <BRepTools.hxx>
101 #include <Message_Msg.hxx>
102 #include <ShapeExtend.hxx>
103 #include <ShapeBuild_Edge.hxx>
104 #include <ShapeBuild_Vertex.hxx>
105 #include <ShapeBuild_ReShape.hxx>
106 #include <ShapeAnalysis_Curve.hxx>
107 #include <ShapeAnalysis_Edge.hxx>
108 #include <ShapeAnalysis_Surface.hxx>
109 #include <ShapeAnalysis.hxx>
110 #include <ShapeConstruct_ProjectCurveOnSurface.hxx>
111 #include <ShapeAnalysis_TransferParametersProj.hxx>
112 #include <Geom_Plane.hxx>
113 #include <Geom_OffsetCurve.hxx>
115 #include <TColStd_HSequenceOfReal.hxx>
116 #include <Handle_Geom2dAdaptor_HCurve.hxx>
117 #include <Adaptor3d_CurveOnSurface.hxx>
118 #include <Geom2dAdaptor_HCurve.hxx>
119 #include <GeomAPI_ProjectPointOnCurve.hxx>
121 #include <ShapeAnalysis_TransferParameters.hxx>
122 #include <ShapeFix.hxx>
123 #include <ShapeFix_IntersectionTool.hxx>
124 #include <ShapeFix_SplitTool.hxx>
127 //#######################################################################
128 // Constructors, initializations, modes, querying
129 //#######################################################################
131 //=======================================================================
132 //function : ShapeFix_Wire
134 //=======================================================================
136 ShapeFix_Wire::ShapeFix_Wire()
138 myFixEdge = new ShapeFix_Edge;
139 myAnalyzer = new ShapeAnalysis_Wire;
142 myStatusRemovedSegment = Standard_False;
145 //=======================================================================
146 //function : ShapeFix_Wire
148 //=======================================================================
150 ShapeFix_Wire::ShapeFix_Wire (const TopoDS_Wire& wire,
151 const TopoDS_Face &face, const Standard_Real prec)
153 myFixEdge = new ShapeFix_Edge;
154 myAnalyzer = new ShapeAnalysis_Wire;
156 SetMaxTolerance ( prec );
157 myStatusRemovedSegment = Standard_False;
158 Init ( wire, face, prec );
161 //=======================================================================
162 //function : SetPrecision
164 //=======================================================================
166 void ShapeFix_Wire::SetPrecision (const Standard_Real prec)
168 ShapeFix_Root::SetPrecision ( prec );
169 myAnalyzer->SetPrecision ( prec );
172 //=======================================================================
173 //function : ClearModes
175 //=======================================================================
177 void ShapeFix_Wire::ClearModes()
179 myTopoMode = Standard_False;
180 myGeomMode = Standard_True;
181 myClosedMode = Standard_True;
182 myPreference2d = Standard_True;
183 myFixGapsByRanges = Standard_False;
185 myRemoveLoopMode = -1;
187 myFixReversed2dMode = -1;
188 myFixRemovePCurveMode = -1;
189 myFixRemoveCurve3dMode = -1;
190 myFixAddPCurveMode = -1;
191 myFixAddCurve3dMode = -1;
193 myFixShiftedMode = -1;
194 myFixSameParameterMode = -1;
195 myFixVertexToleranceMode = -1;
197 myFixNotchedEdgesMode = -1;
198 myFixSelfIntersectingEdgeMode = -1;
199 myFixIntersectingEdgesMode = -1;
200 myFixNonAdjacentIntersectingEdgesMode = -1;
202 myFixReorderMode = -1;
204 myFixConnectedMode = -1;
205 myFixEdgeCurvesMode = -1;
206 myFixDegeneratedMode = -1;
207 myFixSelfIntersectionMode = -1;
208 myFixLackingMode = -1;
209 myFixGaps3dMode = -1;
210 myFixGaps2dMode = -1;
213 //=======================================================================
214 //function : ClearStatuses
216 //=======================================================================
218 void ShapeFix_Wire::ClearStatuses()
220 Standard_Integer emptyStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
222 myLastFixStatus = emptyStatus;
224 myStatusReorder = emptyStatus;
225 myStatusSmall = emptyStatus;
226 myStatusConnected = emptyStatus;
227 myStatusEdgeCurves = emptyStatus;
228 myStatusDegenerated = emptyStatus;
229 myStatusSelfIntersection = emptyStatus;
230 myStatusLacking = emptyStatus;
231 myStatusGaps3d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
232 myStatusGaps2d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
233 myStatusClosed = emptyStatus;
236 //=======================================================================
239 //=======================================================================
241 void ShapeFix_Wire::Init (const TopoDS_Wire& wire,
242 const TopoDS_Face &face, const Standard_Real prec)
246 SetPrecision ( prec );
249 //=======================================================================
252 //=======================================================================
254 void ShapeFix_Wire::Init (const Handle(ShapeAnalysis_Wire)& saw)
259 // SetPrecision ( saw.Precision() );
262 //=======================================================================
265 //=======================================================================
267 void ShapeFix_Wire::Load (const TopoDS_Wire& wire)
271 TopoDS_Wire W = wire;
272 if ( ! Context().IsNull() ) {
273 TopoDS_Shape S = Context()->Apply ( wire );
274 W = TopoDS::Wire ( S );
277 myAnalyzer->Load ( W );
281 //=======================================================================
284 //=======================================================================
286 void ShapeFix_Wire::Load (const Handle(ShapeExtend_WireData)& sbwd)
289 myAnalyzer->Load ( sbwd );
290 if ( ! Context().IsNull() ) UpdateWire();
294 //=======================================================================
297 //=======================================================================
299 Standard_Integer ShapeFix_Wire::NbEdges() const
301 Handle(ShapeExtend_WireData) sbwd = myAnalyzer->WireData();
302 return sbwd.IsNull() ? 0 : sbwd->NbEdges();
305 //#######################################################################
306 // Fixing methods of API level
307 //#######################################################################
309 //=======================================================================
311 //purpose : This method performs all the available fixes.
312 // If some fix is turned on or off explicitly by the flag,
313 // it is called or not depending on that flag
314 // Else (i.e. if flag is default) fix is called depending on the
315 // situation: default is True, but some fixes are not called or
316 // are limited if order of edges in the wire is not OK
317 //=======================================================================
319 Standard_Boolean ShapeFix_Wire::Perform()
322 if ( ! IsLoaded() ) return Standard_False;
325 Standard_Integer Fixed = Standard_False;
327 // FixReorder is first, because as a rule wire is required to be ordered
328 // We shall analyze the order of edges in the wire and set appropriate
329 // status even if FixReorder should not be called (if it is forbidden)
331 ShapeAnalysis_WireOrder sawo;
332 Standard_Boolean ReorderOK = ( myAnalyzer->CheckOrder ( sawo, myClosedMode ) ==0 );
333 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
334 if(FixReorder()) Fixed = Standard_True;
335 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
338 // FixSmall is allowed to change topology only if mode is set and FixReorder
340 if ( NeedFix ( myFixSmallMode, myTopoMode ) ) {
341 if ( FixSmall ( ! myTopoMode || ! ReorderOK, MinTolerance() ) ) {
342 Fixed = Standard_True;
343 // retry reorder if necessary (after FixSmall it can work better)
344 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
346 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
351 if ( NeedFix ( myFixConnectedMode, ReorderOK ) ) {
352 if ( FixConnected() ) Fixed = Standard_True;
355 if ( NeedFix ( myFixEdgeCurvesMode ) ) {
356 Standard_Integer savFixShiftedMode = myFixShiftedMode;
357 // turn out FixShifted if reorder not done
358 if ( myFixShiftedMode == -1 && ! ReorderOK ) myFixShiftedMode = 0;
359 if ( FixEdgeCurves() ) Fixed = Standard_True;
360 myFixShiftedMode = savFixShiftedMode;
363 if ( NeedFix ( myFixDegeneratedMode ) ) {
364 if ( FixDegenerated() ) Fixed = Standard_True; // ?? if ! ReorderOK ??
367 //pdn - temporary to test
368 if ( NeedFix ( myFixNotchedEdgesMode, ReorderOK ) ) {
369 Fixed |= FixNotchedEdges();
370 if(Fixed) FixShifted(); //skl 07.03.2002 for OCC180
373 if ( NeedFix ( myFixSelfIntersectionMode, myClosedMode ) ) {
374 Standard_Integer savFixIntersectingEdgesMode = myFixIntersectingEdgesMode;
375 // switch off FixIntEdges if reorder not done
376 if ( myFixIntersectingEdgesMode == -1 && ! ReorderOK )
377 myFixIntersectingEdgesMode = 0;
378 if ( FixSelfIntersection() ) Fixed = Standard_True;
380 myFixIntersectingEdgesMode = savFixIntersectingEdgesMode;
383 if ( NeedFix ( myFixLackingMode, ReorderOK ) ) {
384 if ( FixLacking() ) Fixed = Standard_True;
387 // TEMPORARILY without special mode !!!
388 Handle(ShapeExtend_WireData) sbwd = WireData();
389 for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++)
390 if ( myFixEdge->FixVertexTolerance (sbwd->Edge (iedge)) )
391 Fixed = Standard_True;
396 //=======================================================================
397 //function : FixReorder
399 //=======================================================================
401 Standard_Boolean ShapeFix_Wire::FixReorder()
403 myStatusReorder = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
404 if ( ! IsLoaded() ) return Standard_False;
407 ShapeAnalysis_WireOrder sawo;
408 myAnalyzer->CheckOrder ( sawo, myClosedMode, Standard_True );
410 //:abv revolCuts.sat -23: in case of bi-periodic surface check case
411 // of reversed wire specifically. This is necessary because degenerated
412 // cases are possible when direct evaluation will give bad result.
413 Standard_Boolean isReorder = Standard_False;
414 if ( sawo.Status() != 0 &&
415 ! myAnalyzer->Surface().IsNull() &&
416 myAnalyzer->Surface()->Surface()->IsUPeriodic() &&
417 myAnalyzer->Surface()->Surface()->IsVPeriodic() ) {
418 Handle(ShapeExtend_WireData) sbwd2 = new ShapeExtend_WireData;
419 for ( Standard_Integer i=WireData()->NbEdges(); i >=1; i-- )
420 sbwd2->Add ( WireData()->Edge(i) );
421 ShapeAnalysis_WireOrder sawo2;
422 ShapeAnalysis_Wire analyzer2 ( sbwd2, myAnalyzer->Face(), Precision() );
423 analyzer2.CheckOrder ( sawo2, myClosedMode, Standard_True );
424 if ( ( sawo2.Status() >=0 && sawo2.Status() < sawo.Status() ) ||
425 ( sawo.Status() <0 && sawo2.Status() > sawo.Status() ) ) {
426 WireData()->Init ( sbwd2 );
428 isReorder = Standard_True;
434 if ( LastFixStatus ( ShapeExtend_FAIL ) )
435 myStatusReorder |= ShapeExtend::EncodeStatus ( LastFixStatus ( ShapeExtend_FAIL1 ) ?
436 ShapeExtend_FAIL1 : ShapeExtend_FAIL2 );
437 if ( ! LastFixStatus ( ShapeExtend_DONE )&& !isReorder ) return Standard_False;
439 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
440 if ( sawo.Status() ==2 || sawo.Status() ==-2 )
441 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
442 if ( sawo.Status() <0 )
443 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
444 if ( sawo.Status() == 3)
445 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//only shifted
446 return Standard_True;
449 //=======================================================================
450 //function : FixSmall
452 //=======================================================================
454 Standard_Integer ShapeFix_Wire::FixSmall (const Standard_Boolean lockvtx,
455 const Standard_Real precsmall)
457 myStatusSmall = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
458 if ( ! IsLoaded() ) return Standard_False;
460 for ( Standard_Integer i = NbEdges(); i >0; i-- ) {
461 FixSmall ( i, lockvtx, precsmall );
462 myStatusSmall |= myLastFixStatus;
465 return StatusSmall ( ShapeExtend_DONE );
469 //=======================================================================
470 //function : FixConnected
472 //=======================================================================
474 Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Real prec)
476 myStatusConnected = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
477 if ( ! IsLoaded() ) return Standard_False;
479 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
480 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
481 FixConnected ( i, prec );
482 myStatusConnected |= myLastFixStatus;
485 return StatusConnected ( ShapeExtend_DONE );
488 //=======================================================================
489 //function : FixEdgeCurves
491 //=======================================================================
493 Standard_Boolean ShapeFix_Wire::FixEdgeCurves()
495 myStatusEdgeCurves = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
496 if ( ! IsLoaded() ) return Standard_False;
497 Standard_Boolean isReady = IsReady();
499 Handle(ShapeExtend_WireData) sbwd = WireData();
500 Standard_Integer i, nb = sbwd->NbEdges();
501 TopoDS_Face face = Face();
502 Handle(ShapeFix_Edge) theAdvFixEdge = Handle(ShapeFix_Edge)::DownCast(myFixEdge);
503 if (theAdvFixEdge.IsNull()) myFixReversed2dMode = Standard_False;
505 // fix revesred 2d / 3d curves
506 if ( isReady && NeedFix ( myFixReversed2dMode ) ) {
507 for ( i=1; i <= nb; i++ ) {
508 theAdvFixEdge->FixReversed2d ( sbwd->Edge(i), face );
509 if ( theAdvFixEdge->Status ( ShapeExtend_DONE ) )
510 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
511 if ( theAdvFixEdge->Status ( ShapeExtend_FAIL ) )
512 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
516 // add / remove pcurve
517 if ( isReady && NeedFix ( myFixRemovePCurveMode, Standard_False ) ) {
518 for ( i=1; i <= nb; i++ ) {
519 myFixEdge->FixRemovePCurve ( sbwd->Edge(i), face );
520 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
521 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
522 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
523 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
527 if ( isReady && NeedFix ( myFixAddPCurveMode ) ) {
528 Standard_Integer overdegen = 0; //:c0
529 for ( i=1; i <= nb; i++ ) {
530 myFixEdge->FixAddPCurve ( sbwd->Edge(i), face, sbwd->IsSeam(i),
531 myAnalyzer->Surface(), Precision() );
532 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
533 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
534 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
535 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
537 //if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 )
538 // && BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
539 if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 ) ) {
540 // abv 24 Feb 00: trj3_s1-ac-214.stp #1631 etc.: try to split the edge in singularity
541 if ( ! Context().IsNull() ) {
543 TopoDS_Edge E = sbwd->Edge ( i );
544 ShapeAnalysis_Curve SAC;
546 Handle(Geom_Curve) C = BRep_Tool::Curve ( E, a, b );
547 Handle(ShapeAnalysis_Surface) S = myAnalyzer->Surface();
548 Standard_Integer nbs = S->NbSingularities(MinTolerance());
549 GeomAdaptor_Curve GAC ( C, a, b );
550 TColStd_SequenceOfReal seq;
551 for (Standard_Integer j=1; j <= nbs; j++) {
555 Standard_Real par1, par2, split;
556 Standard_Boolean tmpUIsoDeg;
557 S->Singularity (j, Preci, P3d, pd1, pd2, par1, par2, tmpUIsoDeg);
558 if ( SAC.Project ( GAC, P3d, MinTolerance(), pr, split, Standard_True ) < Max(Preci,MinTolerance()) ) {
559 if ( split - a > ::Precision::PConfusion() &&
560 b - split > ::Precision::PConfusion() ) {
562 for ( k=1; k <= seq.Length(); k++ ) {
563 if ( split < seq(k)-::Precision::PConfusion() ) {
564 seq.InsertBefore ( k, split );
567 else if ( split < seq(k)+::Precision::PConfusion() ) break;
569 if ( k > seq.Length() ) seq.Append ( split );
573 if ( seq.Length() >0 ) { // supposed that edge is SP
575 cout << "Edge going over singularity detected; splitted" << endl;
577 Standard_Boolean isFwd = ( E.Orientation() == TopAbs_FORWARD );
578 E.Orientation ( TopAbs_FORWARD );
580 //if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
581 // sbe.RemovePCurve ( E, face );
583 //10.04.2003 skl for using trimmed lines as pcurves
584 ShapeAnalysis_Edge sae;
585 if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
586 sbe.RemovePCurve ( E, face );
588 if(sae.HasPCurve(E,face)) {
589 Handle(Geom2d_Curve) C2d;
590 Standard_Real fp2d,lp2d;
591 if(sae.PCurve(E,face,C2d,fp2d,lp2d)) {
592 if( !C2d->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)) )
593 sbe.RemovePCurve(E,face);
598 // myFixEdge->FixSameParameter ( E ); // to ensure SameRange & SP
600 TopoDS_Vertex V1, V2, V;
601 //ShapeAnalysis_Edge sae;
602 V1 = sae.FirstVertex ( E );
603 V2 = sae.LastVertex ( E );
604 Handle(ShapeExtend_WireData) sw = new ShapeExtend_WireData;
605 for ( Standard_Integer k=0; k <= seq.Length(); k++ ) {
606 Standard_Real split = ( k < seq.Length() ? seq(k+1) : b );
607 if ( k < seq.Length() )
608 B.MakeVertex ( V, C->Value(split), BRep_Tool::Tolerance(E) );
610 TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
611 if( BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
612 //TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
613 B.Range ( edge, a, split );
617 //TopoDS_Edge edge = sbe.CopyReplaceVertices(sbwd->Edge(i),V1,V);
618 Handle(ShapeAnalysis_TransferParameters) sftp =
619 new ShapeAnalysis_TransferParameters(E,face);
620 sftp->TransferRange(edge, a, split, Standard_False);
629 E.Orientation ( TopAbs_REVERSED );
631 Context()->Replace ( E, sw->Wire() );
633 nb = sbwd->NbEdges();
643 //:c0 abv 20 Feb 98: treat case of curve going over degenerated pole and seam
644 if ( overdegen && myAnalyzer->Surface()->IsUClosed(Precision()) ) {
646 Standard_Real URange, SUF, SUL, SVF, SVL;
647 myAnalyzer->Surface()->Bounds(SUF, SUL, SVF, SVL);
648 URange = (Abs(SUL - SUF));
650 ShapeAnalysis_Edge sae;
652 for ( k = 1; k <= nb; k++) {
653 Standard_Real cf, cl;
654 Handle(Geom2d_Curve) c2d;
655 if ( ! sae.PCurve ( sbwd->Edge(k), face, c2d, cf, cl, Standard_True ) ) break;
656 vec += c2d->Value(cl).XY() - c2d->Value(cf).XY();
658 if ( k > nb && Abs ( Abs ( vec.X() ) - URange ) < 0.1 * URange ) {
659 sbe.RemovePCurve (sbwd->Edge ( overdegen ), face);
660 myFixEdge->Projector()->AdjustOverDegenMode() = Standard_False;
661 myFixEdge->FixAddPCurve ( sbwd->Edge(overdegen), face, sbwd->IsSeam(overdegen), myAnalyzer->Surface(), Precision());
664 cout << "Edge going over singularity detected; pcurve adjusted" << endl;
669 // add / remove pcurve
670 if ( isReady && NeedFix ( myFixRemoveCurve3dMode, Standard_False ) ) {
671 for ( i=1; i <= nb; i++ ) {
672 myFixEdge->FixRemoveCurve3d ( sbwd->Edge(i) );
673 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
674 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
675 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
676 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
679 if ( NeedFix ( myFixAddCurve3dMode ) ) {
680 for ( i=1; i <= nb; i++ ) {
681 myFixEdge->FixAddCurve3d ( sbwd->Edge(i) );
682 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
683 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
684 if ( myFixEdge->Status ( ShapeExtend_FAIL ) ) {
685 //:abv 29.08.01: Spatial_firex_lofting.sat: if 3d curve cannot
686 // be built because edge has no pcurves either, remove that edge
687 Handle(Geom2d_Curve) C;
688 Handle(Geom_Surface) S;
690 Standard_Real first = 0., last = 0.;
691 BRep_Tool::CurveOnSurface ( sbwd->Edge(i), C, S, L, first, last );
692 if ( C.IsNull() || Abs (last - first) < Precision::PConfusion())
694 SendWarning ( sbwd->Edge ( i ), Message_Msg ( "FixWire.FixCurve3d.Removed" ) );// Incomplete edge (with no pcurves or 3d curve) removed
695 sbwd->Remove ( i-- );
697 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
698 FixConnected (i + 1, Precision());
700 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL5 );
706 if ( isReady && NeedFix ( myFixSeamMode, Standard_False ) ) {
707 for ( i=1; i <= nb; i++ ) {
709 if ( LastFixStatus ( ShapeExtend_DONE ) )
710 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
711 if ( LastFixStatus ( ShapeExtend_FAIL ) )
712 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL6 );
717 if ( isReady && NeedFix ( myFixShiftedMode ) ) {
719 if ( LastFixStatus ( ShapeExtend_DONE ) )
720 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
721 if ( LastFixStatus ( ShapeExtend_FAIL ) )
722 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL7 );
725 // fix same parameter
726 if ( isReady && NeedFix ( myFixSameParameterMode ) ) {
727 for ( i=1; i <= nb; i++ ) {
728 // skl 28.10.2004 for OCC6366 - check SameRange
729 ShapeAnalysis_Edge sae;
730 Standard_Real First, Last;
731 Handle(Geom_Curve) tmpc3d = BRep_Tool::Curve(sbwd->Edge(i), First, Last);
732 if(sae.HasPCurve(sbwd->Edge(i),face)) {
733 Handle(Geom2d_Curve) C2d;
734 Standard_Real fp2d,lp2d;
735 if(sae.PCurve(sbwd->Edge(i),face,C2d,fp2d,lp2d)) {
736 if( fabs(First-fp2d)>Precision::PConfusion() ||
737 fabs(Last-fp2d)>Precision::PConfusion() ) {
739 B.SameRange(sbwd->Edge(i),Standard_False);
743 myFixEdge->FixSameParameter ( sbwd->Edge(i) );
744 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
745 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
746 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
747 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
751 //:abv 10.06.02: porting C40 -> dev (CC670-12608.stp): moved from Perform()
752 // Update with face is needed for plane surfaces (w/o stored pcurves)
753 if ( NeedFix ( myFixVertexToleranceMode ) ) {
754 for ( i=1; i <= nb; i++) {
755 myFixEdge->FixVertexTolerance (sbwd->Edge (i), face);
756 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
757 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
758 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
759 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
763 return StatusEdgeCurves ( ShapeExtend_DONE );
766 //=======================================================================
767 //function : FixDegenerated
769 //=======================================================================
771 Standard_Boolean ShapeFix_Wire::FixDegenerated()
773 myStatusDegenerated = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
774 if ( ! IsReady() ) return Standard_False;
776 // if ( ! myAnalyzer->Surface()->HasSingularities ( Precision() ) ) return;
778 Standard_Integer lastcoded = -1, prevcoded = 0;
779 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
780 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
781 FixDegenerated ( i );
782 myStatusDegenerated |= myLastFixStatus;
783 //:r0 abv 19 Mar 99: PRO7226.stp #489490: remove duplicated degenerated edges
784 Standard_Integer coded = ( LastFixStatus ( ShapeExtend_DONE2 ) ? 1 : 0 );
785 if ( lastcoded ==-1 ) lastcoded = coded;
786 if ( coded && ( prevcoded || ( i ==1 && lastcoded ) ) && NbEdges() >1 ) {
787 Handle(ShapeExtend_WireData) sbwd = WireData();
790 if ( ! prevcoded ) i = NbEdges();
791 B.Degenerated ( sbwd->Edge ( i++ ), Standard_False );
794 else prevcoded = coded;
797 return StatusDegenerated ( ShapeExtend_DONE );
801 //=======================================================================
802 //function : FixSelfIntersection
803 //purpose : Applies FixSelfIntersectingEdge and FixIntersectingEdges
804 // and removes wrong edges
805 //=======================================================================
807 Standard_Boolean ShapeFix_Wire::FixSelfIntersection()
809 myStatusSelfIntersection = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
810 if ( ! IsReady() ) return Standard_False;
812 Handle(ShapeExtend_WireData) sbwd = WireData();
813 Standard_Integer nb = sbwd->NbEdges();
815 if ( NeedFix ( myFixSelfIntersectingEdgeMode ) ) {
816 if (myRemoveLoopMode<1)
817 for ( Standard_Integer num=1; num <=nb; num++ )
819 FixSelfIntersectingEdge ( num );
820 myStatusSelfIntersection |= myLastFixStatus;
822 else if (myRemoveLoopMode==1)
824 for ( Standard_Integer num=1; num <=nb; num++ )
826 FixSelfIntersectingEdge ( num );
827 myStatusSelfIntersection |= myLastFixStatus;
828 if(nb<sbwd->NbEdges()) num--;
829 nb = sbwd->NbEdges();
831 FixClosed(Precision());
835 if ( NeedFix ( myFixIntersectingEdgesMode ) ) {
836 Standard_Integer num = ( myClosedMode ? 1 : 2 );
837 for ( ; nb >1 && num <= nb; num++ ) {
838 FixIntersectingEdges ( num );
839 if ( LastFixStatus ( ShapeExtend_FAIL1 ) )
840 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
841 if ( LastFixStatus ( ShapeExtend_FAIL2 ) )
842 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
843 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) continue;
845 if ( LastFixStatus ( ShapeExtend_DONE1 ) )
846 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
847 if ( LastFixStatus ( ShapeExtend_DONE2 ) )
848 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
849 if(LastFixStatus (ShapeExtend_DONE6))
850 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
852 if ( ! myTopoMode || nb < 3 ) {
853 //#86 rln 22.03.99 sim2.igs, entity 4292: After fixing of self-intersecting
854 //BRepCheck finds one more self-intersection not found by ShapeAnalysis
855 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
856 //FixIntersectingEdges ( num );
857 if ( LastFixStatus ( ShapeExtend_DONE7 ) ) num--;
861 if ( LastFixStatus ( ShapeExtend_DONE4 ) ) sbwd->Remove ( num );
862 if ( LastFixStatus ( ShapeExtend_DONE3 ) ) sbwd->Remove ( num >1 ? num-1 : nb+num-1 );
863 if ( LastFixStatus ( ShapeExtend_DONE4 ) ||
864 LastFixStatus ( ShapeExtend_DONE3 ) ) {
865 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
866 num = ( myClosedMode ? 1 : 2 );
867 nb = sbwd->NbEdges();
869 cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Edge removed" << endl;
874 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
875 //FixIntersectingEdges ( num );
876 if ( LastFixStatus ( ShapeExtend_DONE7 ) ) num--;
881 //pdn 17.03.99 S4135 to avoid regression fixing not adjacent intersection
882 if ( NeedFix ( myFixNonAdjacentIntersectingEdgesMode ) ) {
884 ShapeFix_IntersectionTool ITool(Context(),Precision());
885 Standard_Integer NbSplit=0, NbCut=0,NbRemoved=0;
886 if(ITool.FixSelfIntersectWire(sbwd,myAnalyzer->Face(),NbSplit,NbCut,NbRemoved)) {
887 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//gka 06.09.04
889 if( NbSplit>0 || NbRemoved>0 ) {
890 if(NbRemoved>0) myStatusRemovedSegment = Standard_True;
891 //Load(sbwd); commented by skl 29.12.2004 for OCC7624, instead this
892 // string inserted following three strings:
893 myAnalyzer->Load ( sbwd );
894 if ( ! Context().IsNull() ) UpdateWire();
898 if (StatusSelfIntersection (ShapeExtend_DONE5))
899 cout<<"Warning: ShapeFix_Wire::FixIntersection: Non-adjacent intersection fixed (split-"
900 <<NbSplit<<", cut-"<<NbCut<<", removed-"<<NbRemoved<<")"<<endl;
904 Bnd_Array1OfBox2d boxes(1,nb);
906 const Handle(Geom_Surface)& S = BRep_Tool::Surface(Face(), L);
907 Handle(Geom2d_Curve) c2d;
909 ShapeAnalysis_Edge sae;
910 for(Standard_Integer i = 1; i <= nb; i++){
911 TopoDS_Edge E = sbwd->Edge (i);
912 if(sae.PCurve (E,S,L,c2d,cf,cl,Standard_False)) {
914 Geom2dAdaptor_Curve gac;
915 Standard_Real aFirst = c2d->FirstParameter();
916 Standard_Real aLast = c2d->LastParameter();
917 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
918 && (cf < aFirst || cl > aLast)) {
919 //pdn avoiding problems with segment in Bnd_Box
924 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
929 Standard_Boolean isFail = Standard_False, isDone = Standard_False;
930 for(Standard_Integer num1 = 1; num1 < nb-1; num1++) {
931 Standard_Integer fin = (num1 == 1 ? nb-1 : nb);
932 for(Standard_Integer num2 = num1+2; num2 <= fin; num2++)
933 if(!boxes(num1).IsOut(boxes(num2))){
934 FixIntersectingEdges (num1, num2);
935 isFail |= LastFixStatus ( ShapeExtend_FAIL1 );
936 isDone |= LastFixStatus ( ShapeExtend_DONE1 );
941 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
943 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
945 if (StatusSelfIntersection (ShapeExtend_DONE5))
946 cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Non ajacent intersection fixed" << endl;
951 return StatusSelfIntersection ( ShapeExtend_DONE );
955 //=======================================================================
956 //function : FixLacking
958 //=======================================================================
960 Standard_Boolean ShapeFix_Wire::FixLacking ( const Standard_Boolean force )
962 myStatusLacking = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
963 if ( ! IsReady() ) return Standard_False;
965 Standard_Integer start = ( myClosedMode ? 1 : 2 );
966 for ( Standard_Integer i = start; i <= NbEdges(); i++ ) {
967 FixLacking ( i, force );
968 myStatusLacking |= myLastFixStatus;
971 return StatusLacking ( ShapeExtend_DONE );
975 //=======================================================================
976 //function : FixClosed
978 //=======================================================================
980 Standard_Boolean ShapeFix_Wire::FixClosed (const Standard_Real prec)
982 myStatusClosed = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
983 if ( ! IsLoaded() || NbEdges() <1 ) return Standard_False;
985 FixConnected ( 1, prec );
986 if ( LastFixStatus ( ShapeExtend_DONE ) )
987 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
988 if ( LastFixStatus ( ShapeExtend_FAIL ) )
989 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
991 FixDegenerated ( 1 );
992 if ( LastFixStatus ( ShapeExtend_DONE ) )
993 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
994 if ( LastFixStatus ( ShapeExtend_FAIL ) )
995 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
998 if ( LastFixStatus ( ShapeExtend_DONE ) )
999 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1000 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1001 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1003 return StatusClosed ( ShapeExtend_DONE );
1007 //#######################################################################
1008 // Fixing methods of advanced level
1009 //#######################################################################
1011 //=======================================================================
1012 //function : FixReorder
1014 //=======================================================================
1016 Standard_Boolean ShapeFix_Wire::FixReorder (const ShapeAnalysis_WireOrder& wi)
1018 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1019 if ( ! IsLoaded() ) return Standard_False;
1021 Standard_Integer status = wi.Status();
1022 if ( status ==0 ) return Standard_False;
1023 if ( status <=-10 ) {
1024 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1025 return Standard_False;
1028 Handle(ShapeExtend_WireData) sbwd = WireData();
1029 Standard_Integer i, nb = sbwd->NbEdges();
1030 if ( nb != wi.NbEdges() ) {
1031 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1032 return Standard_False;
1034 // D abord on protege
1035 for (i = 1; i <= nb; i ++) {
1036 if ( wi.Ordered(i) == 0 ) {
1037 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1038 return Standard_False;
1042 Handle(TopTools_HSequenceOfShape) newedges = new TopTools_HSequenceOfShape();
1043 for ( i=1; i <= nb; i++ )
1044 newedges->Append ( sbwd->Edge ( wi.Ordered(i) ) );
1045 for ( i=1; i <= nb; i++ )
1046 sbwd->Set ( TopoDS::Edge ( newedges->Value(i) ), i );
1048 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1049 return Standard_True;
1053 //=======================================================================
1054 //function : FixSmall
1056 //=======================================================================
1058 Standard_Boolean ShapeFix_Wire::FixSmall (const Standard_Integer num,
1059 const Standard_Boolean lockvtx,
1060 const Standard_Real precsmall)
1062 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1063 if ( ! IsLoaded() || NbEdges() <=1 ) return Standard_False;
1066 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
1067 if (theAdvAnalyzer.IsNull()) return Standard_False;
1068 Standard_Integer n = ( num >0 ? num : NbEdges() );
1069 theAdvAnalyzer->CheckSmall ( n, precsmall );
1070 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1071 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1072 //:n2 return Standard_False;
1075 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1077 // OUI cette edge est NULLE
1079 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) ) {
1080 // edge is small, but vertices are not the same..
1081 if ( lockvtx || ! myTopoMode ) {
1082 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1083 return Standard_False;
1085 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1087 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1089 // action: remove edge
1090 if ( ! Context().IsNull() )
1091 Context()->Remove(WireData()->Edge(n));
1092 SendWarning ( WireData()->Edge ( n ), Message_Msg ( "FixAdvWire.FixSmall.MSG0" ) ); //Small edge(s) removed
1093 WireData()->Remove ( n );
1095 // call FixConnected in the case if vertices of the small edge were not the same
1096 if ( LastFixStatus ( ShapeExtend_DONE2 ) ) {
1097 Standard_Integer savLastFixStatus = myLastFixStatus;
1098 //#43 rln 20.11.98 S4054 CTS18544 entity 21734 removing last edge
1099 FixConnected ( n <= NbEdges() ? n : 1, precsmall );
1100 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1101 savLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1102 myLastFixStatus = savLastFixStatus;
1105 return Standard_True;
1109 //=======================================================================
1110 //function : FixConnected
1112 //=======================================================================
1114 Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Integer num,
1115 const Standard_Real prec)
1117 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1118 if ( ! IsLoaded() || NbEdges() <=0 ) return Standard_False;
1122 myAnalyzer->CheckConnected ( num, prec < 0 ? MaxTolerance() : prec );
1123 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1124 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1126 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1128 // action: replacing vertex
1130 Handle(ShapeExtend_WireData) sbwd = WireData();
1131 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1132 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1133 TopoDS_Edge E1 = sbwd->Edge(n1);
1134 TopoDS_Edge E2 = sbwd->Edge(n2);
1136 ShapeAnalysis_Edge sae;
1137 TopoDS_Vertex V1 = sae.LastVertex (E1);
1138 TopoDS_Vertex V2 = sae.FirstVertex (E2);
1141 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ) { // absolutely confused
1142 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1143 //#40 rln 18.11.98 S4054 BUC60035 entity 2393 (2-nd sub-curve is edge with the same vertex)
1144 if ( V2.IsSame ( sae.LastVertex (E2) ) ) {
1146 if ( ! Context().IsNull() )
1147 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1151 if ( ! Context().IsNull() )
1152 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1155 else { // on moyenne ...
1156 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) )
1157 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1158 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1159 ShapeBuild_Vertex sbv;
1160 V = sbv.CombineVertex ( V1, V2, 1.0001 );
1161 if ( ! Context().IsNull() ) {
1162 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1163 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1167 // replace vertices to a new one
1168 ShapeBuild_Edge sbe;
1169 if ( sbwd->NbEdges() <2 ) {
1170 if(E2.Free() && myTopoMode) {
1172 B.Remove(E2,sae.FirstVertex(E2));
1173 B.Remove(E2,sae.LastVertex(E2));
1174 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1175 B.Add(E2,V.Oriented(TopAbs_REVERSED));
1178 TopoDS_Edge tmpE = sbe.CopyReplaceVertices ( E2, V, V );
1179 sbwd->Set ( tmpE, n2 );
1180 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE);
1184 if(E2.Free() &&E1.Free() && myTopoMode) {
1186 B.Remove(E2,sae.FirstVertex(E2));
1187 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1188 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1189 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1190 B.Remove(E1,sae.LastVertex(E1));
1191 B.Add(E1,V.Oriented(TopAbs_REVERSED));
1195 TopoDS_Edge tmpE2 = sbe.CopyReplaceVertices ( E2, V, TopoDS_Vertex() );
1196 sbwd->Set ( tmpE2, n2 );
1197 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE2);
1198 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1199 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1200 TopoDS_Edge tmpE1 = sbe.CopyReplaceVertices ( E1, TopoDS_Vertex(), V );
1201 sbwd->Set (tmpE1, n1 );
1202 if ( ! Context().IsNull() ) Context()->Replace(E1,tmpE1);
1206 if ( ! Context().IsNull() ) UpdateWire();
1208 return Standard_True;
1212 //=======================================================================
1213 //function : FixSeam
1215 //=======================================================================
1217 Standard_Boolean ShapeFix_Wire::FixSeam (const Standard_Integer num)
1219 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1220 if ( ! IsReady() ) return Standard_False;
1222 Handle(Geom2d_Curve) C1, C2;
1223 Standard_Real cf, cl;
1224 if ( ! myAnalyzer->CheckSeam (num, C1, C2, cf, cl) ) return Standard_False;
1227 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
1228 B.UpdateEdge (E, C2,C1, Face(), 0.); //:S4136: BRep_Tool::Tolerance(E)
1229 B.Range (E, Face(),cf,cl);
1230 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1232 return Standard_True;
1235 //=======================================================================
1236 //function : FixShifted
1237 //purpose : fix parametric curves which may be shifted
1238 // to whole parametric range of closed surface as result of recomputing
1239 // from 3d representation.
1240 // This can be a curve on a seam or near it.
1241 // This function is to be called before FixDegenerated.
1242 // LIMITATION: this function cannot fix cases when, e.g., closed wire is
1243 // composed of two meridians of the sphere and one of them is seam.
1244 // NOTE: wire is supposed to be closed and sorted !
1245 //=======================================================================
1247 //:p4 abv 23.02.99: PRO9234 #15720: update UV points of edge
1248 static void UpdateEdgeUVPoints (TopoDS_Edge &E, const TopoDS_Face &F)
1250 Standard_Real first, last;
1251 BRep_Tool::Range ( E, F, first, last );
1252 BRep_Builder().Range ( E, F, first, last );
1256 //=======================================================================
1257 //function : FixShifted
1259 //=======================================================================
1261 Standard_Boolean ShapeFix_Wire::FixShifted()
1263 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1264 if ( ! IsReady() ) return Standard_False;
1266 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
1267 //#78 rln 12.03.99 S4135: checking spatial closure with Precision
1268 Standard_Boolean uclosed = surf->IsUClosed(Precision());
1269 Standard_Boolean vclosed = surf->IsVClosed(Precision()) || surf->Surface()->IsKind (STANDARD_TYPE(Geom_SphericalSurface));
1270 //#67 rln 01.03.99 S4135: ims010.igs entity D11900 (2D contour is 2*PI higher than V range [-pi/2,p/2])
1272 // PTV 26.06.2002 begin
1273 // CTS18546-2.igs entity 2222: base curve is periodic and 2dcurve is shifted
1274 Standard_Boolean IsVCrvClosed = Standard_False;
1275 Standard_Real VRange = 1.;
1276 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1277 Handle(Geom_SurfaceOfRevolution) aSurOfRev = Handle(Geom_SurfaceOfRevolution)::DownCast(surf->Surface());
1278 Handle(Geom_Curve) aBaseCrv = aSurOfRev->BasisCurve();
1279 while ( (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve))) ||
1280 (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) ) {
1281 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve)))
1282 aBaseCrv = Handle(Geom_OffsetCurve)::DownCast(aBaseCrv)->BasisCurve();
1283 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve)))
1284 aBaseCrv = Handle(Geom_TrimmedCurve)::DownCast(aBaseCrv)->BasisCurve();
1286 if (aBaseCrv->IsPeriodic()) {
1287 vclosed = Standard_True;
1288 VRange = aBaseCrv->Period();
1289 IsVCrvClosed = Standard_True;
1291 cout << "Warning: ShapeFix_Wire::FixShifted set vclosed True for Surface of Revolution" << endl;
1295 // PTV 26.06.2002 end
1296 if ( ! uclosed && ! vclosed ) return Standard_False;
1298 Standard_Real URange, /*VRange,*/ SUF, SUL, SVF, SVL;
1299 surf->Surface()->Bounds ( SUF, SUL, SVF, SVL );
1300 Standard_Real SUMid, SVMid;
1301 SUMid = 0.5*(SUF+SUL);
1302 SVMid = 0.5*(SVF+SVL);
1303 if (uclosed) URange = Abs ( SUL - SUF );
1304 else URange = RealLast();
1306 if (vclosed) VRange = Abs ( SVL - SVF );
1307 else VRange = RealLast();
1308 Standard_Real UTol = 0.2 * URange, VTol = 0.2 * VRange;
1310 Handle(ShapeExtend_WireData) sbwdOring = WireData();
1311 ShapeAnalysis_Edge sae;
1312 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData;
1313 for ( Standard_Integer i=1; i <= sbwdOring->NbEdges(); i++ ) {
1314 TopoDS_Edge E1 = sbwdOring->Edge ( i );
1315 if ( BRep_Tool::Degenerated(E1) && !sae.HasPCurve(E1,Face()))
1321 ShapeBuild_Edge sbe;
1322 Standard_Integer nb = sbwd->NbEdges();
1323 Standard_Boolean end = (nb == 0), degstop = Standard_False;;
1324 Standard_Integer stop = nb;
1325 Standard_Integer degn2 = 0;
1327 //pdn 17.12.98 r0901_ec 38237 to shift wire at 0
1329 //GeomAdaptor_Surface& GAS = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface(); //SK
1331 for ( Standard_Integer n2=1, n1=nb; ! end; n1 = n2++ ) {
1332 if ( n2 > nb ) n2 = 1;
1333 if ( n2 == stop ) end = Standard_True;
1335 TopoDS_Edge E1 = sbwd->Edge ( n1 );
1336 TopoDS_Edge E2 = sbwd->Edge ( n2 );
1338 if ( BRep_Tool::Degenerated(E1) || BRep_Tool::Degenerated(E2) ) {
1339 if ( ! degstop ) { stop = n2; degstop = Standard_True; }
1343 TopoDS_Vertex V = sae.FirstVertex ( E2 );
1344 gp_Pnt p = BRep_Tool::Pnt ( V );
1346 Standard_Real a1, b1, a2, b2;
1347 Handle(Geom2d_Curve) c2d1, c2d2;
1349 //:abv 29.08.01: torCuts.sat: distinguish degeneration by U and by V;
1350 // only corresponding move is prohibited
1351 // Standard_Boolean isDeg = surf->IsDegenerated ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ) );
1352 Standard_Integer isDeg = 0;
1353 gp_Pnt2d degP1, degP2;
1354 Standard_Real degT1, degT2;
1355 if ( surf->DegeneratedValues ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ),
1356 degP1, degP2, degT1, degT2 ) )
1357 isDeg = ( Abs ( degP1.X() - degP2.X() ) > Abs ( degP1.Y() - degP2.Y() ) ? 1 : 2 );
1359 // abv 23 Feb 00: UKI60107-6 210: additional check for near-degenerated case
1360 //smh#15 PRO19800. Check if the surface is surface of revolution.
1361 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1362 if ( ! isDeg && ! vclosed ) {
1363 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1364 gp_Pnt2d p1 ( SUF, c2d1->Value(b1).Y() );
1365 gp_Pnt2d p2 ( SUL, c2d1->Value(b1).Y() );
1366 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1367 ! 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
1370 if ( ! isDeg && ! uclosed ) {
1371 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1372 gp_Pnt2d p1 ( c2d1->Value(b1).X(), SVF );
1373 gp_Pnt2d p2 ( c2d1->Value(b1).X(), SVL );
1374 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1375 ! 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
1381 if ( ! degstop ) { stop = n2; degstop = Standard_True; }
1382 if ( ! degn2 ) { degn2 = n2; pdeg = p; }
1383 else if ( pdeg.SquareDistance(p) < Precision()*Precision() ) {
1385 // if ( stop < n2 ) { stop = n2; degstop = Standard_True; }
1388 Standard_Real ax1, bx1, ax2, bx2;
1389 Handle(Geom2d_Curve) cx1, cx2;
1390 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1391 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ||
1392 ! sae.PCurve ( sbwd->Edge ( degn2 >1 ? degn2-1 : nb ), Face(), cx1, ax1, bx1, Standard_True ) ||
1393 ! sae.PCurve ( sbwd->Edge ( degn2 ), Face(), cx2, ax2, bx2, Standard_True ) ) {
1394 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1397 gp_Pnt2d pd1 = cx1->Value ( bx1 );
1398 gp_Pnt2d pd2 = cx2->Value ( ax2 );
1399 gp_Pnt2d pn1 = c2d1->Value ( b1 );
1400 gp_Pnt2d pn2 = c2d2->Value ( a2 );
1401 gp_Vec2d x(0.,0.); // shift vector
1402 Standard_Real period;
1403 if ( uclosed ) { x.SetX ( 1. ); period = URange; }
1404 else { x.SetY ( 1. ); period = VRange; }
1405 Standard_Real rot1 = ( pn1.XY() - pd2.XY() ) ^ x.XY();
1406 Standard_Real rot2 = ( pd1.XY() - pn2.XY() ) ^ x.XY();
1407 Standard_Real scld = ( pd2.XY() - pd1.XY() ) * x.XY();
1408 Standard_Real scln = ( pn2.XY() - pn1.XY() ) * x.XY();
1409 if ( rot1 * rot2 < -::Precision::PConfusion() &&
1410 scld * scln < -::Precision::PConfusion() &&
1411 Abs ( scln ) > 0.1 * period && Abs ( scld ) > 0.1 * period &&
1412 rot1 * scld > ::Precision::PConfusion() &&
1413 rot2 * scln > ::Precision::PConfusion() ) {
1414 // abv 02 Mar 00: trying more sophisticated analysis (ie_exhaust-A.stp #37520)
1415 Standard_Real sign = ( rot2 >0 ? 1. : -1. );
1416 Standard_Real deep1 = Min ( sign * ( pn2.XY() * x.XY() ),
1417 Min ( sign * ( pd1.XY() * x.XY() ),
1418 Min ( sign * ( c2d2->Value(b2 ).XY() * x.XY() ),
1419 Min ( sign * ( cx1->Value(ax1).XY() * x.XY() ),
1420 Min ( sign * ( c2d2->Value(0.5*(a2 +b2 )).XY() * x.XY() ),
1421 sign * ( cx1->Value(0.5*(ax1+bx1)).XY() * x.XY() ) ) ) ) ) );
1422 Standard_Real deep2 = Max ( sign * ( pn1.XY() * x.XY() ),
1423 Max ( sign * ( pd2.XY() * x.XY() ),
1424 Max ( sign * ( c2d1->Value(a1 ).XY() * x.XY() ),
1425 Max ( sign * ( cx2->Value(bx2).XY() * x.XY() ),
1426 Max ( sign * ( c2d1->Value(0.5*(a1 +b1 )).XY() * x.XY() ),
1427 sign * ( cx2->Value(0.5*(ax2+bx2)).XY() * x.XY() ) ) ) ) ) );
1428 Standard_Real deep = deep2 - deep1; // estimated current size of wire by x
1429 // pdn 30 Oct 00: trying correct period [0,period] (trj5_k1-tc-203.stp #4698)
1430 Standard_Real dx = ShapeAnalysis::AdjustToPeriod ( deep, ::Precision::PConfusion(), period+::Precision::PConfusion());
1431 x *= ( scld >0 ? -dx : dx );
1432 // x *= ( Abs(scld-scln) > 1.5 * period ? 2. : 1. ) *
1433 // ( scld >0 ? -period : period );
1435 Shift.SetTranslation ( x );
1436 for ( Standard_Integer k=degn2; ; k++ ) {
1437 if ( k > nb ) k = 1;
1438 if ( k == n2 ) break;
1439 TopoDS_Edge edge = sbwd->Edge ( k );
1440 if ( ! sae.PCurve ( edge, Face(), cx1, ax1, bx1, Standard_True ) ) continue;
1441 //cx1->Transform ( Shift );
1442 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1443 Handle(Geom2d_Curve) cx1new = Handle(Geom2d_Curve)::DownCast(cx1->Transformed(Shift));
1444 sbe.ReplacePCurve(edge,cx1new,Face());
1445 UpdateEdgeUVPoints ( edge, Face() );
1447 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1449 cout << "Info: ShapeFix_Wire::FixShifted(): bi - meridian case fixed" << endl;
1453 // degn2 = n2; pdeg = p; // ie_exhaust-A.stp #37520
1456 // pdn to fix half sphere
1457 TopoDS_Vertex VE = sae.LastVertex ( E2 );
1458 gp_Pnt pe = BRep_Tool::Pnt ( VE );
1459 //pdn is second vertex on singular point ?
1460 if ( surf->IsDegenerated ( pe, Max ( Precision(), BRep_Tool::Tolerance(V) ) ) ) {
1461 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1462 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1463 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1466 gp_Pnt2d p2d1 = c2d1->Value ( b1 ), p2f = c2d2->Value ( a2 ), p2l = c2d2->Value ( b2 );
1467 Standard_Real pres2 = ::Precision::PConfusion();
1468 Standard_Real du = 0.,dv = 0.;
1469 //#79 rln 15.03.99 S4135: bmarkmdl.igs entity 633 (incorrectly oriented contour) check for gap
1470 if(uclosed&&(Abs(p2f.X()-p2l.X())<pres2)&&Abs(p2d1.X()-p2f.X())>GAS.UResolution(Precision())) {
1471 if((Abs(p2f.X()-SUF)<pres2)&&(p2f.Y()<p2l.Y()))
1473 if((Abs(p2f.X()-SUL)<pres2)&&(p2f.Y()>p2l.Y()))
1476 if(vclosed&&(Abs(p2f.Y()-p2l.Y())<pres2)&&Abs(p2d1.Y()-p2f.Y())>GAS.VResolution(Precision())) {
1477 if((Abs(p2f.Y()-SVF)<pres2)&&(p2f.X()>p2l.X()))
1479 if((Abs(p2f.Y()-SVL)<pres2)&&(p2f.X()<p2l.X()))
1482 if ( du ==0. && dv == 0. ) continue;
1483 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1485 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1486 c2d2->Transform ( Shift );
1487 UpdateEdgeUVPoints ( E2, Face() );//rln 15.03.99 syntax correction :E1
1490 //:abv 29.08.01: torCuts.sat: continue;
1493 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1494 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1495 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1498 gp_Pnt2d p2d1 = c2d1->Value ( b1 );
1499 gp_Pnt2d p2d2 = c2d2->Value ( a2 );
1502 Standard_Real du=0., dv=0.;
1503 if ( uclosed && isDeg != 1 ) {
1504 Standard_Real dx = Abs ( p2d2.X() - p2d1.X() );
1505 if ( dx > URange - UTol )
1506 du = ShapeAnalysis::AdjustByPeriod ( p2d2.X(), p2d1.X(), URange );
1507 else if ( dx > UTol && stop == nb ) stop = n2; //:abv 29.08.01: torCuts2.stp
1509 if ( vclosed && isDeg != 2 ) {
1510 Standard_Real dy = Abs ( p2d2.Y() - p2d1.Y() );
1511 if ( dy > VRange - VTol )
1512 dv = ShapeAnalysis::AdjustByPeriod ( p2d2.Y(), p2d1.Y(), VRange );
1513 else if ( dy > VTol && stop == nb ) stop = n2;
1515 if ( du ==0. && dv == 0. ) continue;
1517 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1519 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1520 //c2d2->Transform ( Shift );
1521 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1522 Handle(Geom2d_Curve) c2d2new = Handle(Geom2d_Curve)::DownCast(c2d2->Transformed(Shift));
1523 sbe.ReplacePCurve(E2,c2d2new,Face());
1524 UpdateEdgeUVPoints ( E2, Face() );
1526 if ( box.IsVoid() ) return Standard_False; //#3 smh 01.04.99. S4163: Overflow, when box is void.
1528 Standard_Real umin, vmin, umax, vmax;
1529 box.Get ( umin, vmin, umax, vmax );
1530 if ( Abs ( umin + umax - SUF - SUL ) < URange &&
1531 Abs ( vmin + vmax - SVF - SVL ) < VRange &&
1532 ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
1535 Standard_Integer n; // svv Jan11 2000 : porting on DEC
1536 for ( n=1; n <= nb; n++ ) {
1538 Handle(Geom2d_Curve) c2d;
1539 if ( ! sae.PCurve ( sbwd->Edge(n), Face(), c2d, a, b, Standard_True ) ) continue;
1540 box.Add ( c2d->Value ( a ) );
1541 box.Add ( c2d->Value ( 0.5 * ( a + b ) ) );
1543 box.Get ( umin, vmin, umax, vmax );
1545 Standard_Real du=0., dv=0.;
1548 Standard_Real umid = 0.5 * ( umin + umax );
1549 // du = ShapeAnalysis::AdjustToPeriod(umid, SUF, SUL);
1550 // PTV 26.06.2002 xloop torus-apple iges face mode
1551 du = ShapeAnalysis::AdjustByPeriod(umid, SUMid, URange);
1554 Standard_Real vmid = 0.5 * ( vmin + vmax );
1555 // dv = ShapeAnalysis::AdjustToPeriod(vmid, SVF, SVL);
1556 // PTV 26.06.2002 xloop torus-apple iges face mode
1557 dv = ShapeAnalysis::AdjustByPeriod(vmid, SVMid, VRange);
1560 if ( du ==0. && dv == 0. ) return Standard_True;
1562 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1565 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1567 for ( n=1; n <= sbwdOring->NbEdges(); n++ ) {
1569 Handle(Geom2d_Curve) c2d;
1570 TopoDS_Edge ed = sbwdOring->Edge(n);
1571 if ( ! sae.PCurve ( ed, Face(), c2d, a, b, Standard_True ) ) continue;
1572 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1573 Handle(Geom2d_Curve) c2d2 = Handle(Geom2d_Curve)::DownCast(c2d->Transformed(Shift));
1574 sbe.ReplacePCurve(ed,c2d2,Face());
1575 UpdateEdgeUVPoints ( ed, Face() );
1577 return Standard_True;
1580 //=======================================================================
1581 //function : FixDegenerated
1583 //=======================================================================
1585 Standard_Boolean ShapeFix_Wire::FixDegenerated (const Standard_Integer num)
1587 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1588 if ( ! IsReady() ) return Standard_False;
1591 gp_Pnt2d p2d1, p2d2;
1592 myAnalyzer->CheckDegenerated ( num, p2d1, p2d2 );
1593 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL1 ) ) {
1594 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1596 //: abv 29.08.01: torHalf2.sat: if edge was encoded as degenerated but
1597 // has no pcurve and no singularity is found at that point, remove it
1598 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL2 ) ) {
1599 WireData()->Remove ( num );
1600 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1601 return Standard_True;
1603 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1605 // action: create degenerated edge and insert it (or replace)
1607 gp_Vec2d vect2d ( p2d1, p2d2 );
1608 gp_Dir2d dir2d ( vect2d );
1609 Handle(Geom2d_Line) line2d = new Geom2d_Line ( p2d1, dir2d );
1611 TopoDS_Edge degEdge;
1613 B.MakeEdge ( degEdge );
1614 B.Degenerated ( degEdge, Standard_True );
1615 B.UpdateEdge ( degEdge, line2d, Face(), ::Precision::Confusion() );
1616 B.Range ( degEdge, Face(), 0., vect2d.Magnitude() );
1618 Handle(ShapeExtend_WireData) sbwd = WireData();
1619 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1620 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1622 Standard_Boolean lack = myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 );
1623 Standard_Integer n3 = ( lack ? n2 : ( n2 < sbwd->NbEdges() ? n2+1 : 1 ) );
1625 ShapeAnalysis_Edge sae;
1626 TopoDS_Vertex V1 = sae.LastVertex ( sbwd->Edge ( n1 ) );
1627 TopoDS_Vertex V2 = sae.FirstVertex ( sbwd->Edge ( n3 ) );
1629 V1.Orientation(TopAbs_FORWARD);
1630 V2.Orientation(TopAbs_REVERSED);
1633 degEdge.Orientation(TopAbs_FORWARD);
1636 sbwd->Add ( degEdge, n2 );
1637 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1640 sbwd->Set ( degEdge, n2 );
1641 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1644 // commented to avoid extra messages
1645 // SendWarning ( degEdge, Message_Msg ( "FixWire.FixDegenerated.MSG0" ) );// Degenerated edge(s) detected
1647 return Standard_True;
1650 //=======================================================================
1651 //function : FixSelfIntersectingEdge
1652 //purpose : Tests edge for self-intersection and updates tolerance of vertex
1653 // if intersection is found
1654 // Returns True if tolerance was increased
1655 //=======================================================================
1657 // Create edge on basis of E with new pcurve and call FixSP
1658 // Return resulting tolerance and modified pcurve
1659 static Standard_Boolean TryNewPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
1660 Handle(Geom2d_Curve) &c2d,
1661 Standard_Real &first,
1662 Standard_Real &last,
1666 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1667 if ( crv.IsNull() ) return Standard_False;
1669 // make temp edge and compute tolerance
1670 BRepBuilderAPI_MakeEdge mkedge ( crv, f, l );
1672 ShapeBuild_Edge SBE; //skl 17.07.2001
1673 SBE.SetRange3d(mkedge,f,l); //skl 17.07.2001
1675 if ( ! mkedge.IsDone() ) return Standard_False;
1677 TopoDS_Edge edge = mkedge;
1679 B.UpdateEdge ( edge, c2d, face, 0. );
1680 B.Range ( edge, face, first, last );
1681 B.SameRange ( edge, Standard_False );
1682 // no call to BRepLib: B.SameParameter ( edge, Standard_False );
1684 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
1685 sfe->FixSameParameter ( edge );
1686 c2d = BRep_Tool::CurveOnSurface ( edge, face, first, last );
1687 tol = BRep_Tool::Tolerance ( edge );
1688 return Standard_True;
1691 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087:
1692 // Try to cut out the loop on the pcurve and make new pcurve by concatenating
1694 // If result is not SameParameter with prec, does nothing and returns False
1695 // Warning: resulting pcurve will be C0
1697 //=======================================================================
1698 //function : howMuchPCurves
1700 //=======================================================================
1701 static Standard_Integer howMuchPCurves (const TopoDS_Edge &E)
1703 Standard_Integer count = 0;
1704 BRep_ListIteratorOfListOfCurveRepresentation itcr
1705 ((*((Handle(BRep_TEdge)*)&E.TShape()))->ChangeCurves());
1707 while (itcr.More()) {
1708 const Handle(BRep_CurveRepresentation)& cr = itcr.Value();
1709 if ( cr->IsCurveOnSurface() )
1718 //=======================================================================
1719 //function : RemoveLoop
1721 //=======================================================================
1722 static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
1723 const IntRes2d_IntersectionPoint &IP,
1724 const Standard_Real tolfact,
1725 const Standard_Real prec,
1726 const Standard_Boolean RemoveLoop3d)
1728 Standard_Boolean loopRemoved3d;
1729 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
1732 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1734 Standard_Real t1 = IP.ParamOnFirst();
1735 Standard_Real t2 = IP.ParamOnSecond();
1736 if ( t1 > t2 ) { Standard_Real t = t1; t1 = t2; t2 = t; }
1738 ShapeAnalysis_Edge sae;
1740 Handle(Geom2d_Curve) c2d;
1741 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
1742 return Standard_False;
1745 cout << "Cut Loop: params (" << t1 << ", " << t2;
1747 GeomAdaptor_Curve GAC ( crv, f, l );
1748 Standard_Real dt = tolfact * GAC.Resolution(prec);
1749 t1 -= dt; //1e-3;//::Precision::PConfusion();
1750 t2 += dt; //1e-3;//::Precision::PConfusion();
1752 cout << ") -> (" << t1 << ", " << t2 << ")" << endl;
1755 if ( t1 <= a || t2 >= b ) { // should not be so, but to be sure ..
1756 return Standard_False;
1759 // direct construction causes error on osf system.
1766 Handle(Geom_Plane) aPlaneSurf = Handle(Geom_Plane)::DownCast( BRep_Tool::Surface(face) );
1767 Handle(Geom_Curve) pcurve3d = crv;
1768 if ( !aPlaneSurf.IsNull() ) {
1769 Pln = aPlaneSurf->Pln();
1772 pcurve3d = GeomAPI::To3d ( c2d, Pln );
1775 //Handle(Geom_Curve) pcurve3d = GeomAPI::To3d ( c2d, Pln );
1776 Handle(Geom_TrimmedCurve) trim = new Geom_TrimmedCurve (pcurve3d, a, t1);
1777 GeomConvert_CompCurveToBSplineCurve connect ( trim );
1779 // null-length segment patch instead of loop
1780 TColgp_Array1OfPnt Poles(1,2);
1781 TColStd_Array1OfReal Knots(1,2);
1782 TColStd_Array1OfInteger Mults(1,2);
1784 Poles.SetValue(1,trim->Value(t1));
1785 Knots.SetValue(1,t1);
1786 Mults.SetValue(1,2);
1788 trim = new Geom_TrimmedCurve (pcurve3d, t2, b);
1789 Poles.SetValue(2,trim->Value(t2));
1790 Knots.SetValue(2,t2);
1791 Mults.SetValue(2,2);
1793 Handle(Geom_BSplineCurve) patch = new Geom_BSplineCurve ( Poles, Knots, Mults, 1 );
1794 if ( ! connect.Add (patch, ::Precision::PConfusion(), Standard_True, Standard_False) )
1795 return Standard_False;
1798 if ( ! connect.Add (trim, ::Precision::PConfusion(), Standard_True, Standard_False) )
1799 return Standard_False;
1801 // keep created 3d curve
1802 Handle(Geom_Curve) aNew3dCrv = connect.BSplineCurve();
1805 Handle(Geom2d_Curve) bs = GeomAPI::To2d ( aNew3dCrv, Pln );
1806 if ( bs.IsNull() ) return Standard_False;
1808 // make temp edge and compute tolerance
1811 if(!RemoveLoop3d) { // old variant (not remove loop 3d)
1812 Standard_Real newtol=0;
1814 Standard_Integer nbC2d = howMuchPCurves( E );
1815 if ( nbC2d <= 1 && !aPlaneSurf.IsNull() )
1816 B.UpdateEdge ( E, bs, face, 0 );
1818 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1820 Standard_Real tol = BRep_Tool::Tolerance ( E );
1822 cout << "Cut Loop: tol orig " << tol << ", prec " << prec << ", new tol " << newtol << endl;
1824 if ( newtol > Max ( prec, tol ) ) return Standard_False;
1825 //:s2 bs = BRep_Tool::CurveOnSurface ( edge, face, a, b );
1826 if ( Abs ( a - f ) > ::Precision::PConfusion() || // smth strange, cancel
1827 Abs ( b - l ) > ::Precision::PConfusion() ) return Standard_False;
1829 if ( !aPlaneSurf.IsNull() ) {
1830 B.UpdateEdge ( E, aNew3dCrv, Max (newtol, tol) );
1832 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1834 B.UpdateEdge ( E, bs, face, newtol );
1835 B.UpdateVertex ( sae.FirstVertex ( E ), newtol );
1836 B.UpdateVertex ( sae.LastVertex ( E ), newtol );
1837 return Standard_True;
1842 Handle(Geom_Surface) S = BRep_Tool::Surface(face, L);
1843 Handle(Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
1844 Handle(GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
1846 Adaptor3d_CurveOnSurface ACS(AC,AS);
1847 gp_Pnt P1(ACS.Value(t1));
1848 gp_Pnt P2(ACS.Value(t2));
1849 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
1851 ShapeAnalysis_TransferParametersProj SFTP(E,face);
1852 Handle(TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
1855 Seq2d->Append((t1+t2)/2);
1856 Handle(TColStd_HSequenceOfReal) Seq3d = new TColStd_HSequenceOfReal;
1857 Seq3d->Append(SFTP.Perform(Seq2d,Standard_False));
1859 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
1860 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
1861 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
1862 Standard_Real ftrim,ltrim;
1863 if(dist3>Max(dist1,dist2)) {
1864 loopRemoved3d = Standard_False;
1867 loopRemoved3d = Standard_True;
1870 Handle(Geom_Curve) bs1;
1872 if (!loopRemoved3d) {
1873 // create new 3d curve
1874 ftrim = Seq3d->Value(1);
1875 ltrim = Seq3d->Value(2);
1878 Handle(Geom_TrimmedCurve) trim1 = new Geom_TrimmedCurve (crv, f, ftrim);
1879 GeomConvert_CompCurveToBSplineCurve connect1 ( trim1 );
1880 TColgp_Array1OfPnt Poles1(1,2);
1881 TColStd_Array1OfReal Knots1(1,2);
1882 TColStd_Array1OfInteger Mults1(1,2);
1884 Poles1.SetValue(1,trim1->Value(ftrim));
1885 Knots1.SetValue(1,ftrim);
1886 Mults1.SetValue(1,2);
1888 trim1 = new Geom_TrimmedCurve (crv, ltrim, l);
1889 Poles1.SetValue(2,trim1->Value(ltrim));
1890 Knots1.SetValue(2,ltrim);
1891 Mults1.SetValue(2,2);
1893 // create b-spline curve
1894 Handle(Geom_BSplineCurve) patch1 = new Geom_BSplineCurve ( Poles1, Knots1, Mults1, 1 );
1896 if ( ! connect1.Add (patch1, ::Precision::PConfusion(), Standard_True, Standard_False) )
1897 return Standard_False;
1900 if ( ! connect1.Add (trim1, ::Precision::PConfusion(), Standard_True, Standard_False) )
1901 return Standard_False;
1903 bs1 = connect1.BSplineCurve();
1906 return Standard_False;
1908 // Standard_Real oldtol = BRep_Tool::Tolerance ( E );
1911 B.UpdateEdge ( E, bs1, L, 0. );
1912 B.UpdateEdge ( E, bs, face, 0. );
1913 B.Range ( E, face, f, l );
1914 B.SameRange ( E, Standard_False );
1916 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
1917 sfe->FixSameParameter ( E );
1919 return Standard_True;
1922 //=======================================================================
1923 //function : RemoveLoop
1925 //=======================================================================
1926 static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
1927 const IntRes2d_IntersectionPoint &IP2d,
1932 cout<<"Info: ShapeFix_Wire::FixSelfIntersection : Try insert vertex"<<endl;
1935 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
1938 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1940 Standard_Real t1 = IP2d.ParamOnFirst();
1941 Standard_Real t2 = IP2d.ParamOnSecond();
1945 Standard_Real t = t1; t1 = t2; t2 = t;
1948 ShapeAnalysis_Edge sae;
1950 // define vertexes Vfirst , Vlast, Vmid
1951 TopoDS_Vertex Vfirst,Vlast,Vmid;
1952 // initialize Vfirst and Vlast
1953 Vfirst = sae.FirstVertex(E);
1954 Vlast = sae.LastVertex(E);
1956 // find a 2d curve and parameters from edge E
1958 Handle (Geom2d_Curve) c2d;
1959 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
1960 return Standard_False;
1962 // first segment for 2d curve
1963 Handle(Geom2d_TrimmedCurve) trim1;
1964 if( (t1-a)>Precision::PConfusion() )
1965 trim1 = new Geom2d_TrimmedCurve (c2d, a, t1);
1966 // second segment for 2d curve
1967 Handle(Geom2d_TrimmedCurve) trim2 = new Geom2d_TrimmedCurve (c2d, t2, b);
1969 // if ( trim1.IsNull() || trim2.IsNull() )
1971 return Standard_False;
1974 Handle (Geom_Surface) S = BRep_Tool::Surface(face, L);
1975 Handle (Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
1976 Handle (GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
1978 Adaptor3d_CurveOnSurface ACS(AC,AS);
1979 gp_Pnt P1(ACS.Value(t1));
1980 gp_Pnt P2(ACS.Value(t2));
1981 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
1983 // transfer parameters from pcurve to 3d curve
1984 ShapeAnalysis_TransferParametersProj SFTP(E,face);
1985 Handle (TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
1988 Seq2d->Append((t1+t2)/2);
1989 Handle (TColStd_HSequenceOfReal) Seq3d = new TColStd_HSequenceOfReal;
1990 Seq3d->Append(SFTP.Perform(Seq2d,Standard_False));
1992 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
1993 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
1994 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
1995 Standard_Real ftrim,ltrim;
1996 if ( dist3 > Max(dist1, dist2)) { // is loop in 3d
1997 ftrim = Seq3d->Value(1);
1998 ltrim = Seq3d->Value(2);
2000 else { // not loop in 3d
2001 ftrim = Seq3d->Value(3);
2002 ltrim = Seq3d->Value(3);
2005 // ftrim = Seq3d->Value(1);
2006 // ltrim = Seq3d->Value(2);
2008 // trim for 3d curve 'crv' with parameters from 'f' to 'l'
2009 Handle(Geom_TrimmedCurve) trim3;
2011 trim3 = new Geom_TrimmedCurve (crv, f, ftrim);
2012 // second segment for 3d curve
2013 Handle(Geom_TrimmedCurve) trim4 = new Geom_TrimmedCurve (crv, ltrim, l);
2015 // if ( trim3.IsNull() || trim4.IsNull() )
2017 return Standard_False;
2019 // create a point for middle vertex
2020 gp_Pnt pnt1 = crv->Value(ftrim);
2021 gp_Pnt pnt2 = crv->Value(ltrim);
2022 gp_Pnt Pmid((pnt1.X()+pnt2.X())/2,(pnt1.Y()+pnt2.Y())/2,(pnt1.Z()+pnt2.Z())/2);
2026 // create new copies for E1 and E2
2028 E1=TopoDS::Edge(E.EmptyCopied());
2029 E2=TopoDS::Edge(E.EmptyCopied());
2031 // initialize middle vertex Vmid
2033 B.MakeVertex(Vmid, pnt2, 0.);
2035 B.MakeVertex(Vmid, Pmid, 0.);
2037 ShapeBuild_Edge sbe;
2039 // replace verteces for new edges E1 and E2
2040 if (E.Orientation()== TopAbs_FORWARD)
2043 E1=sbe.CopyReplaceVertices(E1,Vfirst,Vmid);
2044 E2=sbe.CopyReplaceVertices(E2,Vmid, Vlast);
2049 E1=sbe.CopyReplaceVertices(E1,Vmid, Vlast);
2050 E2=sbe.CopyReplaceVertices(E2,Vfirst, Vmid);
2053 // Update edges by 2d and 3d curves
2054 Handle(ShapeFix_Edge) mySfe = new ShapeFix_Edge;
2056 B.UpdateEdge(E1, trim1, face, 0.);
2057 B.UpdateEdge(E1, trim3, 0.);
2058 B.Range(E1, f, ftrim);
2059 B.SameRange(E1,Standard_False);
2060 // B.SameParameter(E1,Standard_False);
2061 mySfe->FixSameParameter(E1);
2062 mySfe->FixVertexTolerance(E1);
2064 B.UpdateEdge(E2, trim2, face, 0.);
2065 B.UpdateEdge(E2, trim4, 0.);
2066 B.Range ( E2,ltrim,l );
2067 B.SameRange(E2, Standard_False );
2068 // B.SameParameter(E2, Standard_False);
2069 mySfe->FixSameParameter(E2);
2070 mySfe->FixVertexTolerance(E2);
2072 return Standard_True;
2076 //=======================================================================
2077 //function : FixSelfIntersectingEdge
2079 //=======================================================================
2081 Standard_Boolean ShapeFix_Wire::FixSelfIntersectingEdge (const Standard_Integer num)
2083 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2084 if ( ! IsReady() ) return Standard_False;
2087 IntRes2d_SequenceOfIntersectionPoint points2d;
2088 TColgp_SequenceOfPnt points3d;
2089 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2090 if (theAdvAnalyzer.IsNull()) return Standard_False;
2091 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, points2d, points3d );
2092 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2093 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2095 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2097 // action: increase tolerance of vertex
2099 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
2101 ShapeAnalysis_Edge sae;
2102 TopoDS_Vertex V1 = sae.FirstVertex ( E );
2103 TopoDS_Vertex V2 = sae.LastVertex ( E );
2104 Standard_Real tol1 = BRep_Tool::Tolerance ( V1 );
2105 Standard_Real tol2 = BRep_Tool::Tolerance ( V2 );
2106 gp_Pnt pnt1 = BRep_Tool::Pnt ( V1 );
2107 gp_Pnt pnt2 = BRep_Tool::Pnt ( V2 );
2109 // cycle is to verify fix in case of RemoveLoop
2110 Standard_Real tolfact = 0.1; // factor for shifting by parameter in RemoveLoop
2111 Standard_Real f2d, l2d;
2112 Handle(Geom2d_Curve) c2d;
2113 Standard_Real newtol=0.; // = Precision();
2115 if (myRemoveLoopMode<1) {
2116 for ( Standard_Integer iter=0; iter < 30; iter++ ) {
2117 Standard_Boolean loopRemoved = Standard_False;;
2118 Standard_Real prevFirst = 0 , prevLast = 0;
2119 for ( Standard_Integer i=1; i<=points2d.Length(); i++ ) {
2120 gp_Pnt pint = points3d.Value(i);
2121 Standard_Real dist21 = pnt1.SquareDistance ( pint );
2122 Standard_Real dist22 = pnt2.SquareDistance ( pint );
2123 if ( dist21 < tol1 * tol1 || dist22 < tol2 * tol2 ) continue;
2124 newtol = 1.001 * Sqrt ( Min ( dist21, dist22 ) ); //:f8
2126 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2129 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2130 Standard_Real firstpar = points2d.Value(i).ParamOnFirst();
2131 Standard_Real lastpar = points2d.Value(i).ParamOnSecond();
2132 if(firstpar > prevFirst && lastpar < prevLast) continue;
2133 if ( RemoveLoop (E, Face(), points2d.Value(i), tolfact,
2134 Min( MaxTolerance(), Max(newtol,Precision()) ),
2135 myRemoveLoopMode==0 ) ) {
2136 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2137 loopRemoved = Standard_True;
2138 prevFirst = firstpar;
2140 continue; // repeat of fix on that edge required (to be done by caller)
2143 if ( newtol < MaxTolerance() ) {
2144 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2146 if ( dist21 < dist22 ) B.UpdateVertex ( V1, tol1 = newtol );
2147 else B.UpdateVertex ( V2, tol2 = newtol );
2149 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2152 // after RemoveLoop, check that self-intersection disappeared
2153 if ( loopRemoved ) {
2154 IntRes2d_SequenceOfIntersectionPoint pnts2d;
2155 TColgp_SequenceOfPnt pnts3d;
2156 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, pnts2d, pnts3d );
2157 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) break;
2158 //points3d.Append(pnts3d);
2159 //points2d.Append(pnts2d);
2163 B.UpdateEdge ( E, c2d, Face(), 0. );
2164 B.Range ( E, Face(), f2d, l2d );
2165 //newtol+=Precision();
2173 //===============================================
2174 // RemoveLoopMode = 1 , insert vertex
2175 //===============================================
2176 if (myRemoveLoopMode == 1) {
2177 // after fixing will be nb+1 edges
2178 Standard_Boolean loopRemoved;
2179 // create a sequence of resulting edges
2180 Handle (TopTools_HSequenceOfShape) TTSS = new TopTools_HSequenceOfShape;
2183 loopRemoved = Standard_False;
2184 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2187 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2189 if ( RemoveLoop (E, Face(), points2d.Value(1),E1,E2) ) {
2190 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2191 loopRemoved = Standard_True;
2194 newtol = Max(BRep_Tool::Tolerance(E1),BRep_Tool::Tolerance(E2));
2197 newtol = BRep_Tool::Tolerance(E2);
2203 if ( newtol > MaxTolerance() )
2204 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2206 ShapeExtend_WireData sewd;
2207 for (Standard_Integer i=1 ; i <= TTSS->Length(); i++) {
2208 sewd.Add(TopoDS::Edge(TTSS->Value(i)));
2210 if (! Context().IsNull()) {
2211 Context()->Replace ( E, sewd.Wire() );
2215 WireData()->Remove(num >0 ? num : NbEdges());
2216 WireData()->Add(sewd.Wire(), num >0 ? num : NbEdges());
2219 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
2223 if ( LastFixStatus ( ShapeExtend_DONE ) && ! myShape.IsNull() ) {
2224 SendWarning ( E, Message_Msg ( "FixAdvWire.FixIntersection.MSG5" ) );// Edge was self-intersecting, corrected
2227 return LastFixStatus ( ShapeExtend_DONE );
2231 //=======================================================================
2232 //function : ComputeLocalDeviation
2233 //purpose : auxilary
2234 //=======================================================================
2235 static Standard_Real ComputeLocalDeviation (const TopoDS_Edge &edge,
2236 const gp_Pnt &pint,const gp_Pnt &pnt,
2237 Standard_Real f, Standard_Real l,
2238 const TopoDS_Face &face )
2240 ShapeAnalysis_Edge sae;
2241 Handle(Geom_Curve) c3d;
2243 if ( ! sae.Curve3d ( edge, c3d, a, b, Standard_False ) ) return RealLast();
2245 gp_Lin line ( pint, gp_Vec ( pint, pnt ) );
2247 Handle(Geom2d_Curve) Crv;
2248 Standard_Real fp,lp;
2249 if ( sae.PCurve(edge,face,Crv,fp,lp,Standard_False) ) {
2250 if(Crv->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
2251 Handle(Geom2d_TrimmedCurve) tc = Handle(Geom2d_TrimmedCurve)::DownCast(Crv);
2252 if(tc->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Line))) {
2253 f = a + (f-fp)*(b-a)/(lp-fp);
2254 l = a + (l-fp)*(b-a)/(lp-fp);
2259 const Standard_Integer NSEG = 10;
2260 Standard_Real step = ( l - f ) / NSEG;
2261 Standard_Real dev = 0.;
2262 for ( Standard_Integer i=1; i < NSEG; i++ ) {
2263 gp_Pnt p = c3d->Value ( f + i * step );
2264 Standard_Real d = line.Distance ( p );
2265 if ( dev < d ) dev = d;
2270 //=======================================================================
2271 //function : FixIntersectingEdges
2273 //=======================================================================
2275 Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num)
2277 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2278 if ( ! IsReady() || NbEdges() <2 ) return Standard_False;
2281 IntRes2d_SequenceOfIntersectionPoint points2d;
2282 TColgp_SequenceOfPnt points3d;
2283 TColStd_SequenceOfReal errors;
2284 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2285 if (theAdvAnalyzer.IsNull()) return Standard_False;
2286 theAdvAnalyzer->CheckIntersectingEdges ( num, points2d, points3d, errors );
2287 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2288 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2290 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2292 //rln 03/02/98: CSR#BUC50004 entity 56 (to avoid later inserting lacking edge)
2293 //:l0 Standard_Boolean isLacking = myAnalyzer->CheckLacking ( num );
2295 // action: increase tolerance of vertex
2297 Handle(ShapeExtend_WireData) sbwd = WireData();
2298 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2299 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2300 TopoDS_Edge E1 = sbwd->Edge(n1);
2301 TopoDS_Edge E2 = sbwd->Edge(n2);
2302 Standard_Boolean isForward1 = ( E1.Orientation() == TopAbs_FORWARD );
2303 Standard_Boolean isForward2 = ( E2.Orientation() == TopAbs_FORWARD );
2304 Standard_Real a1, b1, a2, b2;
2305 BRep_Tool::Range ( E1, Face(), a1, b1 );
2306 BRep_Tool::Range ( E2, Face(), a2, b2 );
2308 ShapeAnalysis_Edge sae;
2309 TopoDS_Vertex Vp = sae.FirstVertex ( E1 );
2310 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2311 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2312 TopoDS_Vertex Vn = sae.LastVertex ( E2 );
2314 Standard_Real tol = BRep_Tool::Tolerance ( V1 );
2315 gp_Pnt pnt = BRep_Tool::Pnt ( V1 );
2317 Standard_Real prevRange1 = RealLast(), prevRange2 = RealLast();
2318 Standard_Boolean cutEdge1 = Standard_False, cutEdge2 = Standard_False;
2319 Standard_Boolean IsCutLine = Standard_False;
2323 Standard_Integer nb = points3d.Length();
2324 for ( Standard_Integer i=1; i <= nb; i++ ) {
2325 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2326 Standard_Real param1 = ( num ==1 ? IP.ParamOnSecond() : IP.ParamOnFirst() );
2327 Standard_Real param2 = ( num ==1 ? IP.ParamOnFirst() : IP.ParamOnSecond() );
2329 Standard_Real newRange1 = Abs ( ( isForward1 ? a1 : b1 ) - param1 );
2330 Standard_Real newRange2 = Abs ( ( isForward2 ? b2 : a2 ) - param2 );
2331 if ( newRange1 > prevRange1 && newRange2 > prevRange2 ) continue;
2333 gp_Pnt pint = points3d.Value(i);
2334 Standard_Real rad = errors.Value(i);
2335 Standard_Real newtol = 1.0001 * ( pnt.Distance ( pint ) + rad );
2337 // GeomAdaptor_Surface& Ads = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface();
2339 //:r8 abv 12 Apr 99: try increasing tolerance of edge
2340 if ( ! myTopoMode && newtol > tol ) {
2341 Standard_Real te1 = rad + ComputeLocalDeviation (E1, pint, pnt,
2342 param1, ( isForward1 ? b1 : a1 ), Face() );
2343 Standard_Real te2 = rad + ComputeLocalDeviation (E2, pint, pnt,
2344 ( isForward2 ? a2 : b2 ), param2, Face() );
2345 Standard_Real maxte = Max ( te1, te2 );
2346 if ( maxte < MaxTolerance() && maxte < newtol ) {
2347 if ( BRep_Tool::Tolerance(E1) < te1 || BRep_Tool::Tolerance(E2) < te2 ) {
2349 // cout << "Warning: ShapeFix_Wire::FixIE: edges tolerance increased: (" <<
2350 // te1 << ", " << te2 << ") / " << newtol << endl;
2352 B.UpdateEdge ( E1, 1.000001 * te1 );
2353 B.UpdateVertex ( sae.FirstVertex ( E1 ), 1.000001 * te1 );
2354 B.UpdateVertex ( sae.LastVertex ( E1 ), 1.000001 * te1 );
2355 B.UpdateEdge ( E2, 1.000001 * te2 );
2356 B.UpdateVertex ( sae.FirstVertex ( E2 ), 1.000001 * te2 );
2357 B.UpdateVertex ( sae.LastVertex ( E2 ), 1.000001 * te2 );
2358 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
2360 newtol = 1.000001 * maxte;
2364 if ( myTopoMode || newtol <= MaxTolerance() ) {
2365 prevRange1 = newRange1;
2366 prevRange2 = newRange2;
2367 Standard_Boolean locMayEdit = myTopoMode;
2368 if ( myTopoMode ) { //:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586: do not cut edges because of influence on adjacent faces
2369 ShapeFix_SplitTool aTool;
2370 //if ( ! ShapeFix::CutEdge ( E1, ( isForward1 ? a1 : b1 ), param1, Face(), IsCutLine ) ) {
2371 if ( ! aTool.CutEdge ( E1, ( isForward1 ? a1 : b1 ), param1, Face(), IsCutLine ) ) {
2372 if ( V1.IsSame ( Vp ) )
2373 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
2374 else locMayEdit = Standard_False;
2376 else cutEdge1 = Standard_True; //:h4
2377 //if ( ! ShapeFix::CutEdge ( E2, ( isForward2 ? b2 : a2 ), param2, Face(), IsCutLine ) ) {
2378 if ( ! aTool.CutEdge ( E2, ( isForward2 ? b2 : a2 ), param2, Face(), IsCutLine ) ) {
2379 if ( V2.IsSame ( Vn ) )
2380 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2381 else locMayEdit = Standard_False;
2383 else cutEdge2 = Standard_True; //:h4
2386 newRange1 <= prevRange1 && newRange2 <= prevRange2 && //rln 09/01/98
2387 BRep_Tool::SameParameter ( E1 ) &&
2388 BRep_Tool::SameParameter ( E2 ) ) {
2389 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2392 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2396 else if(IsCutLine) {
2397 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2400 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2404 else { // else increase tolerance
2405 if (tol < newtol) { //rln 07.04.99 CCI60005-brep.igs
2406 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2411 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2414 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
2416 B.UpdateVertex ( V1, pnt, tol );
2417 B.UpdateVertex ( V2, pnt, tol );
2419 //:h4: make edges SP (after all cuts: t4mug.stp #3730+#6460)
2420 if ( cutEdge1 ) myFixEdge->FixSameParameter ( E1 );
2421 if ( cutEdge2 && !IsCutLine ) myFixEdge->FixSameParameter ( E2 );
2422 if ( cutEdge1 || cutEdge2 ) {
2423 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2425 if ( ! myShape.IsNull() ) {
2426 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
2428 return Standard_True;
2431 //=======================================================================
2432 //function : FixIntersectingEdges
2434 //=======================================================================
2435 //pdn 17.03.99 fixing non ajacent intersection by increasing tolerance of vertex
2437 Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num1,
2438 const Standard_Integer num2)
2440 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2441 if ( !IsReady() ) return Standard_False;
2442 IntRes2d_SequenceOfIntersectionPoint points2d;
2443 TColgp_SequenceOfPnt points3d;
2444 TColStd_SequenceOfReal errors;
2445 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2446 if (theAdvAnalyzer.IsNull()) return Standard_False;
2447 theAdvAnalyzer->CheckIntersectingEdges ( num1, num2, points2d, points3d, errors);
2448 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2449 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2451 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2452 TColgp_Array1OfPnt vertexPoints(1,4);
2453 TColStd_Array1OfReal vertexTolers(1,4);
2454 TColStd_Array1OfReal newTolers(1,4);
2455 TopTools_Array1OfShape vertices(1,4);
2458 Handle(ShapeExtend_WireData) sbwd = WireData();
2459 Standard_Integer n2 = ( num1 >0 ? num1 : sbwd->NbEdges() );
2460 Standard_Integer n1 = ( num2 >1 ? num2 : sbwd->NbEdges() );
2461 if(n1==n2) return Standard_False;
2463 TopoDS_Edge edge1 = sbwd->Edge(n1);
2464 TopoDS_Edge edge2 = sbwd->Edge(n2);
2466 ShapeAnalysis_Edge sae;
2467 vertices(1) = sae.FirstVertex(edge1);
2468 vertices(2) = sae.LastVertex(edge1);
2469 vertices(3) = sae.FirstVertex(edge2);
2470 vertices(4) = sae.LastVertex(edge2);
2472 Standard_Integer i; // svv Jan11 2000 : porting on DEC
2473 for (i = 1; i <=4; i++) {
2474 vertexPoints(i) = BRep_Tool::Pnt(TopoDS::Vertex(vertices(i)));
2475 vertexTolers(i) = BRep_Tool::Tolerance(TopoDS::Vertex(vertices(i)));
2478 Standard_Real aNewTolEdge1 = 0.0, aNewTolEdge2 = 0.0;
2479 Standard_Integer nb = points3d.Length();
2480 for ( i=1; i <= nb; i++ ) {
2481 gp_Pnt pint = points3d.Value(i);
2483 // searching for the nearest vertexies to the intersection point
2484 Standard_Real aVtx1Param=0., aVtx2Param=0.;
2485 Standard_Integer aVC1, aVC2;
2486 Standard_Real aMinDist = RealLast();
2487 gp_Pnt aNearestVertex;
2488 Standard_Real aNecessaryVtxTole = 0.0;
2489 for(aVC1 = 1; aVC1 <= 2; aVC1++) {
2490 for(aVC2 = 3; aVC2 <= 4; aVC2++) {
2492 Standard_Real aVtxIPDist = pint.Distance(vertexPoints(aVC1));
2493 Standard_Real aVtxVtxDist = vertexPoints(aVC1).Distance(vertexPoints(aVC2));
2494 if(aMinDist > aVtxIPDist && aVtxIPDist > aVtxVtxDist) {
2495 aNecessaryVtxTole = aVtxVtxDist;
2496 aNearestVertex = vertexPoints(aVC1);
2497 aMinDist = aVtxIPDist;
2498 aVtx1Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC1)),edge1);
2499 aVtx2Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC2)),edge2);
2504 // calculation of necessary tolerances of edges
2505 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2506 Standard_Real param1 = IP.ParamOnFirst();
2507 Standard_Real param2 = IP.ParamOnSecond();
2508 Handle(Geom_Curve) aCurve1, aCurve2;
2510 TopLoc_Location L1, L2;
2511 aCurve1 = BRep_Tool::Curve(edge1, L1, f, l);
2512 aCurve2 = BRep_Tool::Curve(edge2, L2, f, l);
2514 // if aMinDist lower than resolution than the intersection point lyes inside the vertex
2515 if(aMinDist < gp::Resolution())
2518 Standard_Real aMaxEdgeTol1 = 0.0, aMaxEdgeTol2 = 0.0;
2519 if(aMinDist < RealLast() && !aCurve1.IsNull() && !aCurve2.IsNull())
2521 gp_Lin aLig(aNearestVertex, gp_Vec(aNearestVertex, pint));
2522 Standard_Integer aPointsC;
2523 Standard_Real du1 = 0.05*(param1 - aVtx1Param);
2524 Standard_Real du2 = 0.05*(param2 - aVtx2Param);
2525 Standard_Real tole1=BRep_Tool::Tolerance(edge1);
2526 Standard_Real tole2=BRep_Tool::Tolerance(edge2);
2527 for(aPointsC = 2; aPointsC < 19; aPointsC++)
2529 Standard_Real u = aVtx1Param + aPointsC * du1;
2530 gp_Pnt P1 = aCurve1->Value(u);
2531 P1.Transform(L1.Transformation());
2532 Standard_Real d1 = aLig.Distance(P1) * 2.0000001;
2533 if(d1 > tole1 && d1 > aMaxEdgeTol1)
2536 u = aVtx2Param + aPointsC * du2;
2537 gp_Pnt P2 = aCurve2->Value(u);
2538 P2.Transform(L2.Transformation());
2539 Standard_Real d2 = aLig.Distance(P2) * 2.0000001;
2540 if(d2 > tole2 && d2 > aMaxEdgeTol2)
2543 if(aMaxEdgeTol1 == 0.0 && aMaxEdgeTol2 == 0.0) continue;
2544 // if the vertexies are far than tolerances so
2545 // we do not need to increase edge tolerance
2546 if(aNecessaryVtxTole > Max(aMaxEdgeTol1, tole1) ||
2547 aNecessaryVtxTole > Max(aMaxEdgeTol2, tole2))
2554 Standard_Real rad = errors.Value(i);
2555 Standard_Real finTol = RealLast();
2556 Standard_Integer rank=1;
2557 for(Standard_Integer j=1; j<=4; j++) {
2558 Standard_Real newtol = 1.0001 * ( pint.Distance (vertexPoints(j)) + rad );
2564 if(finTol <= MaxTolerance()) {
2565 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1);
2566 if(newTolers(rank) < finTol)
2568 if(Max(aMaxEdgeTol1, aMaxEdgeTol2) < finTol && (aMaxEdgeTol1 > 0 || aMaxEdgeTol2 > 0))
2570 aNewTolEdge1 = Max(aNewTolEdge1, aMaxEdgeTol1);
2571 aNewTolEdge2 = Max(aNewTolEdge2, aMaxEdgeTol2);
2575 newTolers(rank) = finTol;
2579 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2584 // update of tolerances of edges
2585 if(aNewTolEdge1 > 0)
2587 for(i = 1; i <= 2; i++)
2588 if(aNewTolEdge1 > Max(vertexTolers(i), newTolers(i)))
2589 newTolers(i) = aNewTolEdge1;
2590 B.UpdateEdge(edge1, aNewTolEdge1);
2592 if(aNewTolEdge2 > 0)
2594 for(i = 3; i <= 4; i++)
2595 if(aNewTolEdge2 > Max(vertexTolers(i), newTolers(i)))
2596 newTolers(i) = aNewTolEdge2;
2597 B.UpdateEdge(edge2, aNewTolEdge2);
2600 // update of tolerances of vertexies
2601 for(i = 1; i <=4; i++)
2602 if(newTolers(i)>0) B.UpdateVertex(TopoDS::Vertex(vertices(i)),newTolers(i));
2604 if ( ! myShape.IsNull() ) {
2605 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
2607 return Standard_True;
2610 //=======================================================================
2611 //function : FixLacking
2612 //purpose : Test if two adjucent edges are disconnected in 2d (while connected
2613 // in 3d), and in that case either increase tolerance of the vertex or
2614 // add a new edge (straight in 2d space), in order to close wire in 2d.
2615 // Returns True if edge was added or tolerance was increased.
2616 //NOTE : Is to be run after FixDegenerated
2617 //Algorithm: 1. Compute the 2d gap between edges and calculate a tolerance
2618 // which should have vertex in order to comprise the gap
2619 // (using GeomAdaptor_Surface); computed value is inctol
2620 // 2. If inctol < tol of vertex, return False (everything is OK)
2621 // 3. If inctol < Precision, just increase tolerance of vertex to inctol
2622 // 4. Else (if both edges are not degenerated) try to add new edge
2623 // with straight pcurve (in order to close the gap):
2624 // a) if flag MayEdit is False
2625 // 1. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2626 // 2. else try to add degenerated edge (check that middle point of
2627 // that pcurveis inside the vertex)
2628 // b) if MayEdit is True
2629 // 1. try to replace big vertex with two new small vertices
2630 // connected by new edge. This is made if there is a 3d space
2631 // between ends of adjacent edges.
2632 // 2. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2633 // 3. else add either degenerated or closed edge (if middle point
2634 // of a pcurve of a new edge is inside the vertex, then
2635 // degenerated edge is added, else new edge is closed).
2636 // 5. If new edge cannot be added, but inctol < MaxTolerance,
2637 // when increase tolerance of vertex to a value of inctol
2638 //Short list of some internal variables:
2639 // tol - tolerance of vertex
2640 // tol2d - tolerance in parametric space of the surface corresponding to 2*tol
2641 // dist2d - distance between ends of pcurves of edges (2d)
2642 // inctol - tolerance required for vertex to close 2d gap (=tol*dist2d/tol2d)
2643 // tol1, tol2 - tolerances of edges, tol0 = tol1 + tol2
2644 // p3d1, p3d2 - ends of 3d curves of edges
2645 //=======================================================================
2646 //:h2 abv 28 May 98: merged modifications by abv 22 Apr 98, gka 27 May 98
2647 // and pdn 25 May 98 concerning lacking closed or degenerated edges
2648 // Example files: r0501_pe #107813, UKI60107-6 250, UKI60107-3 1577.
2650 //:s2 abv 21 Apr 99: add functionality for bending pcurve
2651 static Standard_Boolean TryBendingPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
2652 const gp_Pnt2d p2d, const Standard_Boolean end,
2653 Handle(Geom2d_Curve) &c2d,
2654 Standard_Real &first, Standard_Real &last,
2657 ShapeAnalysis_Edge sae;
2658 if ( ! sae.PCurve ( E, face, c2d, first, last, Standard_False ) ) return Standard_False;
2663 Handle(Geom2d_BSplineCurve) bs;
2664 if ( c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) )
2665 bs = Handle(Geom2d_BSplineCurve)::DownCast(c2d->Copy());
2666 else // if ( c2d->IsKind(STANDARD_TYPE(Geom2d_Line)) )
2668 Handle(Geom2d_TrimmedCurve) trim = new Geom2d_TrimmedCurve ( c2d, first, last );
2669 bs = Geom2dConvert::CurveToBSplineCurve ( trim );
2671 if ( bs.IsNull() ) return Standard_False;
2673 Standard_Real par = ( end ? last : first );
2674 if ( fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2675 bs->Multiplicity(1) > bs->Degree() ) bs->SetPole ( 1, p2d );
2676 else if ( fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2677 bs->Multiplicity(bs->NbKnots()) > bs->Degree() ) bs->SetPole ( bs->NbPoles(), p2d );
2679 bs->Segment ( first, last );
2680 if (fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2681 bs->Multiplicity(1) > bs->Degree()) bs->SetPole ( 1, p2d );
2682 else if (fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2683 bs->Multiplicity(bs->NbKnots()) > bs->Degree()) bs->SetPole ( bs->NbPoles(), p2d );
2684 else return Standard_False;
2688 catch ( Standard_Failure ) {
2690 cout << "Warning: ShapeFix_Wire::FixLacking: Exception in Geom2d_BSplineCurve::Segment()" << endl;
2692 return Standard_False;
2696 if ( ! TryNewPCurve ( E, face, c2d, first, last, tol ) ) return Standard_False;
2697 return Standard_True;
2701 //=======================================================================
2702 //function : FixLacking
2704 //=======================================================================
2706 Standard_Boolean ShapeFix_Wire::FixLacking (const Standard_Integer num,
2707 const Standard_Boolean force)
2709 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2710 if ( ! IsReady() ) return Standard_False;
2713 // First phase: analysis whether the problem (gap) exists
2714 gp_Pnt2d p2d1, p2d2;
2715 Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer)->CheckLacking ( num, ( force ? Precision() : 0. ), p2d1, p2d2 );
2716 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2717 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2719 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2722 // Second phase: collection of data necessary for further analysis
2724 Handle(ShapeExtend_WireData) sbwd = WireData();
2725 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2726 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2727 TopoDS_Edge E1 = sbwd->Edge(n1);
2728 TopoDS_Edge E2 = sbwd->Edge(n2);
2730 ShapeAnalysis_Edge sae;
2731 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2732 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2733 Standard_Real tol = Max ( BRep_Tool::Tolerance ( V1 ), BRep_Tool::Tolerance ( V2 ) );
2735 Standard_Real Prec = Precision();
2736 Standard_Real dist2d = myAnalyzer->MaxDistance2d();
2737 Standard_Real inctol = myAnalyzer->MaxDistance3d();
2739 TopoDS_Face face = myAnalyzer->Face();
2740 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
2743 Standard_Real tol1=::Precision::Confusion(), tol2=::Precision::Confusion(); //SK
2746 //:s2 abv 21 Apr 99: Speculation: try bending pcurves
2747 Standard_Real bendtol1, bendtol2;
2748 Handle(Geom2d_Curve) bendc1, bendc2;
2749 Standard_Real bendf1, bendl1, bendf2, bendl2;
2750 if ( myGeomMode && ! BRep_Tool::IsClosed(E1,face) && ! BRep_Tool::IsClosed(E2,face) ) {
2751 gp_Pnt2d p2d = 0.5 * ( p2d1.XY() + p2d2.XY() );
2752 Standard_Boolean ok1 = TryBendingPCurve (E1, face, p2d, E1.Orientation() == TopAbs_FORWARD,
2753 bendc1, bendf1, bendl1, bendtol1);
2754 Standard_Boolean ok2 = TryBendingPCurve (E2, face, p2d, E2.Orientation() == TopAbs_REVERSED,
2755 bendc2, bendf2, bendl2, bendtol2);
2756 if ( ok1 && ! ok2 ) {
2757 bendtol2 = BRep_Tool::Tolerance(E2);
2758 ok1 = TryBendingPCurve (E1, face, p2d2, E1.Orientation() == TopAbs_FORWARD,
2759 bendc1, bendf1, bendl1, bendtol1);
2761 else if ( ! ok1 && ok2 ) {
2762 bendtol1 = BRep_Tool::Tolerance(E1);
2763 ok2 = TryBendingPCurve (E2, face, p2d1, E2.Orientation() == TopAbs_FORWARD,
2764 bendc2, bendf2, bendl2, bendtol2);
2766 if ( ! ok1 && ! ok2 ) bendc1.Nullify();
2770 // Third phase: analyse how to fix the problem
2772 // selector of solutions
2773 Standard_Boolean doIncrease = Standard_False; // increase tolerance
2774 Standard_Boolean doAddLong = Standard_False; // add long 3d edge in replacement of a vertex
2775 Standard_Boolean doAddClosed = Standard_False; // add closed 3d edge
2776 Standard_Boolean doAddDegen = Standard_False; // add degenerated edge
2777 Standard_Boolean doBend = Standard_False; //:s2 bend pcurves
2779 // if bending is OK with existing tolerances of edges, take it
2780 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2781 ( ( bendtol1 < BRep_Tool::Tolerance(E1) &&
2782 bendtol2 < BRep_Tool::Tolerance(E2) ) ||
2783 ( inctol < Prec && bendtol1 < inctol && bendtol2 < inctol ) ) )
2784 doBend = Standard_True;
2786 // is it OK just to increase tolerance (to a value less than preci)?
2787 else if ( inctol < Prec ) doIncrease = Standard_True;
2789 // If increase is not OK or force, try to find other solutions (adding edge)
2790 else if ( ! BRep_Tool::Degenerated ( E2 ) && ! BRep_Tool::Degenerated ( E1 ) ) {
2792 // analyze the 3d space btw edges: is it enough to add long 3d edge?
2794 Handle(Geom_Curve) c3d;
2796 if ( ! sae.Curve3d ( E1, c3d, a, b, Standard_True ) ) { // cannot work
2797 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2798 return Standard_False;
2800 p3d1 = c3d->Value ( b );
2801 Standard_Real dist2d3d1 = p3d1.Distance ( surf->Value ( p2d1 ) );
2802 if ( ! sae.Curve3d ( E2, c3d, a, b, Standard_True ) ) { // cannot work
2803 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2804 return Standard_False;
2806 p3d2 = c3d->Value ( a );
2807 Standard_Real dist2d3d2 = p3d2.Distance ( surf->Value ( p2d2 ) );
2809 tol1 = Max ( BRep_Tool::Tolerance ( E1 ), dist2d3d1 );
2810 tol2 = Max ( BRep_Tool::Tolerance ( E2 ), dist2d3d2 );
2811 //:c5 Standard_Real tol0 = Max ( tol1 + tol2, thepreci );
2812 Standard_Real tol0 = tol1 + tol2; //:c5 abv 26 Feb 98: CTS17806 #44418
2813 Standard_Real dist3d2 = p3d1.SquareDistance ( p3d2 );
2815 // is it OK to add a long 3d edge?
2816 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) && //:81 abv 20 Jan 98: don`t add back-going edges (zigzags)
2817 dist3d2 > 1.25 * tol0 * tol0 &&
2818 ( force || dist3d2 > Prec * Prec || inctol > MaxTolerance() ) ) {
2819 doAddLong = Standard_True;
2823 //:h6 abv 25 Jun 98: BUC40132 6361: try to increase tol up to MaxTol if not add
2824 if ( ! doAddLong && inctol < MaxTolerance() &&
2825 ! myAnalyzer->Surface()->IsDegenerated ( p2d1, p2d2, 2.*tol, 10. ) ) { //:p7
2826 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2827 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
2828 else doIncrease = Standard_True;
2832 // else try to add either degenerated or closed edge
2833 if ( ! doAddLong ) {
2834 gp_Pnt pV = 0.5 * ( BRep_Tool::Pnt(V1).XYZ() + BRep_Tool::Pnt(V2).XYZ() );
2835 gp_Pnt pm = myAnalyzer->Surface()->Value ( 0.5 * ( p2d1.XY() + p2d2.XY() ) );
2837 Standard_Real dist = pV.Distance ( pm );
2838 if ( dist <= tol ) doAddDegen = Standard_True;
2839 else if ( myTopoMode ) doAddClosed = Standard_True;
2840 else if ( dist <= MaxTolerance() ) { //:r7 abv 12 Apr 99: t3d_opt.stp #14245 after S4136
2841 doAddDegen = Standard_True;
2842 doIncrease = Standard_True;
2848 else if ( !BRep_Tool::Degenerated(E2) && BRep_Tool::Degenerated(E1) ) {
2849 // create new degenerated edge and replace E1 to new edge
2851 else if ( BRep_Tool::Degenerated(E2) && !BRep_Tool::Degenerated(E1) ) {
2852 // create new degenerated edge and replace E2 to new edge
2856 // Third phase - do the fixes
2860 if ( doAddLong || doAddDegen || doAddClosed ) {
2862 // construct new vertices
2863 TopoDS_Vertex newV1, newV2;
2865 newV1 = BRepBuilderAPI_MakeVertex ( p3d1 );
2867 newV2 = BRepBuilderAPI_MakeVertex ( p3d2 );
2868 B.UpdateVertex ( newV1, 1.001 * tol1 );
2869 B.UpdateVertex ( newV2, 1.001 * tol2 );
2878 B.MakeEdge ( edge );
2879 if ( doAddDegen ) B.Degenerated ( edge, Standard_True ); // sln: do it before adding curve
2880 gp_Vec2d v12 ( p2d1, p2d2 );
2881 Handle(Geom2d_Line) theLine2d = new Geom2d_Line ( p2d1, gp_Dir2d ( v12 ) );
2882 B.UpdateEdge ( edge, theLine2d, face, ::Precision::Confusion() );
2883 B.Range ( edge, face, 0, dist2d );
2884 B.Add ( edge, newV1.Oriented ( TopAbs_FORWARD ) );
2885 B.Add ( edge, newV2.Oriented ( TopAbs_REVERSED ) );
2886 ShapeBuild_Edge sbe;
2887 if ( ! doAddDegen && ! sbe.BuildCurve3d ( edge ) ) {
2888 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
2889 return Standard_False;
2892 // if long edge is added, replace vertices of adjacent edges
2895 // replace 1st edge (n1==n2 - special case: wire consists of one edge)
2896 TopoDS_Edge edge1 = sbe.CopyReplaceVertices ( E1,
2897 ( n1 == n2 ? newV2 : TopoDS_Vertex() ), newV1 );
2898 sbwd->Set ( edge1, n1 );
2899 if ( ! Context().IsNull() ) {
2900 Context()->Replace ( E1, edge1 );
2901 // actually, this will occur only in context of single face
2902 // hence, recording to ReShape is rather for tracking modifications
2903 // than for keeping sharing
2904 Context()->Replace ( V1, newV1.Oriented ( V1.Orientation() ) );
2905 if ( ! V1.IsSame ( V2 ) ) {
2906 Context()->Replace ( V2, newV2.Oriented ( V2.Orientation() ) );
2911 TopoDS_Edge edge2 = sbe.CopyReplaceVertices ( E2, newV2, TopoDS_Vertex() );
2912 sbwd->Set ( edge2, n2 );
2913 if ( ! Context().IsNull() ) Context()->Replace ( E2, edge2 );
2915 if ( ! Context().IsNull() ) UpdateWire();
2920 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
2922 cout << "Warning: ShapeFix_Wire::FixLacking: degenerated edge added" << endl;
2925 else if ( ! doAddLong ) {
2926 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2928 sbwd->Add ( edge, n2 );
2929 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2932 // else try to increase tol up to MaxTol
2933 else if ( inctol > tol && inctol < MaxTolerance() ) {
2934 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2935 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
2936 else doIncrease = Standard_True;
2940 if ( doBend ) { //:s2 abv 21 Apr 99
2941 B.UpdateEdge ( E1, bendc1, face, bendtol1 );
2942 B.Range ( E1, face, bendf1, bendl1 );
2943 B.UpdateEdge ( E2, bendc2, face, bendtol2 );
2944 B.Range ( E2, face, bendf2, bendl2 );
2945 B.UpdateVertex ( sae.FirstVertex(E1), bendtol1 );
2946 B.UpdateVertex ( sae.LastVertex(E1), bendtol1 );
2947 B.UpdateVertex ( sae.FirstVertex(E2), bendtol2 );
2948 B.UpdateVertex ( sae.LastVertex(E2), bendtol2 );
2949 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
2950 //:s3 abv 22 Apr 99: PRO7187 #11534: self-intersection not detected unitil curve is bent (!)
2951 FixSelfIntersectingEdge ( n1 );
2952 FixSelfIntersectingEdge ( n2 );
2953 FixIntersectingEdges ( n2 ); //skl 24.04.2003 for OCC58
2955 cout << "Info: ShapeFix_Wire::FixLacking: Bending pcurves" << endl;
2957 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
2960 // increase vertex tolerance
2962 B.UpdateVertex ( V1, 1.001 * inctol );
2963 B.UpdateVertex ( V2, 1.001 * inctol );
2964 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2967 if ( LastFixStatus ( ShapeExtend_DONE ) ) return Standard_True;
2969 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2970 return Standard_False;
2973 //=======================================================================
2974 //function : FixNotchedEdges
2976 //=======================================================================
2978 Standard_Boolean ShapeFix_Wire::FixNotchedEdges()
2980 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2981 if ( ! IsReady() ) return Standard_False;
2983 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2984 TopoDS_Face face = Face();
2985 if ( ! Context().IsNull() ) UpdateWire();
2986 Handle(ShapeExtend_WireData) sewd = WireData();
2988 for (Standard_Integer i = 1; i <= NbEdges() && NbEdges() > 2; i++) {
2989 Standard_Real param;
2990 Standard_Integer toRemove;
2991 if(theAdvAnalyzer->CheckNotchedEdges(i,toRemove,param,MinTolerance())){
2992 Standard_Integer n2 = (i > 0) ? i : NbEdges();
2993 Standard_Integer n1 = (n2 > 1) ? n2-1 : NbEdges();
2994 Standard_Boolean isRemoveFirst = (n1==toRemove);
2995 Standard_Integer toSplit = (n2==toRemove ? n1 : n2);
2996 TopoDS_Edge splitE = sewd->Edge ( toSplit );
2997 ShapeAnalysis_Edge sae;
2998 Handle(Geom2d_Curve) c2d;
3000 sae.PCurve ( splitE, face, c2d, a, b, Standard_True );
3001 Standard_Real ppar = (isRemoveFirst ? b : a);
3002 ShapeBuild_Edge sbe;
3003 TopAbs_Orientation orient = splitE.Orientation();
3004 if ( Abs(param - ppar) > ::Precision::PConfusion() ) {
3005 //pdn perform splitting of the edge and adding to wire
3007 //pdn check if it is necessary
3008 if( Abs((isRemoveFirst ? a : b)-param) < ::Precision::PConfusion() ) {
3012 Handle(ShapeAnalysis_TransferParametersProj) transferParameters =
3013 new ShapeAnalysis_TransferParametersProj;
3014 transferParameters->SetMaxTolerance(MaxTolerance());
3015 transferParameters->Init(splitE,face);
3016 Standard_Real first, last;
3027 B.MakeVertex(Vnew,Analyzer()->Surface()->Value(c2d->Value(param)),::Precision::Confusion());
3028 TopoDS_Edge wE = splitE;
3029 wE.Orientation ( TopAbs_FORWARD );
3030 TopoDS_Shape aTmpShape = Vnew.Oriented(TopAbs_REVERSED); //for porting
3031 TopoDS_Edge newE1 = sbe.CopyReplaceVertices ( wE, sae.FirstVertex(wE), TopoDS::Vertex(aTmpShape) );
3032 sbe.CopyPCurves ( newE1, wE );
3033 transferParameters->TransferRange(newE1,first,param,Standard_True);
3034 B.SameRange(newE1,Standard_False);
3035 B.SameParameter(newE1,Standard_False);
3036 aTmpShape = Vnew.Oriented(TopAbs_FORWARD);
3037 TopoDS_Edge newE2 = sbe.CopyReplaceVertices ( wE, TopoDS::Vertex(aTmpShape),sae.LastVertex(wE) );
3038 sbe.CopyPCurves ( newE2, wE );
3039 transferParameters->TransferRange(newE2,param,last,Standard_True);
3040 B.SameRange(newE2,Standard_False);
3041 B.SameParameter(newE2,Standard_False);
3043 if ( !Context().IsNull() ) {
3048 Context()->Replace ( wE, wire );
3051 newE1.Orientation(orient);
3052 newE2.Orientation(orient);
3053 if (orient==TopAbs_REVERSED){ TopoDS_Edge tmp = newE2; newE2 = newE1; newE1=tmp;}
3055 Standard_Boolean isRemoveLast = ((n1==NbEdges())&&(n2==1));
3056 sewd->Set ( newE1, toSplit);
3057 sewd->Add ( newE2, (toSplit==NbEdges() ? 0 : toSplit+1));
3059 FixDummySeam(isRemoveLast ? NbEdges() : toRemove);
3060 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
3066 if(!Context().IsNull()) //skl 07.03.2002 for OCC180
3068 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
3071 myStatusNotches = myLastFixStatus;
3072 return LastFixStatus ( ShapeExtend_DONE );
3075 //=======================================================================
3076 //function : FixDummySeam
3078 //=======================================================================
3080 static void CopyReversePcurves(const TopoDS_Edge& toedge,
3081 const TopoDS_Edge& fromedge,
3082 const Standard_Boolean reverse)
3084 TopLoc_Location fromLoc = fromedge.Location();
3085 TopLoc_Location toLoc = toedge.Location();
3086 for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3087 ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3088 Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3089 if ( fromGC.IsNull() ) continue;
3090 if ( fromGC->IsCurveOnSurface() ) {
3091 Handle(Geom_Surface) surface = fromGC->Surface();
3092 TopLoc_Location L = fromGC->Location();
3093 Standard_Boolean found = Standard_False;
3094 BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3095 Handle(BRep_GCurve) toGC;
3096 for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3097 toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3098 if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3099 surface != toGC->Surface() || L != toGC->Location() ) continue;
3100 found = Standard_True;
3104 Standard_Real fp = fromGC->First();
3105 Standard_Real lp = fromGC->Last();
3106 toGC = Handle(BRep_GCurve)::DownCast(fromGC->Copy());
3107 tolist.Append (toGC);
3108 Handle(Geom2d_Curve) pcurve = Handle(Geom2d_Curve)::DownCast( fromGC->PCurve()->Copy() );
3110 fp = pcurve->ReversedParameter(fp);
3111 lp = pcurve->ReversedParameter(lp);
3113 Standard_Real tmp = fp;
3117 //bug OCC209 invalid location of pcurve in the edge after copying
3118 TopLoc_Location newLoc = (fromLoc*L).Predivided(toLoc);
3119 toGC->SetRange(fp,lp);
3120 toGC->PCurve(pcurve);
3121 toGC->Location(newLoc);
3122 if ( fromGC->IsCurveOnClosedSurface() ) {
3123 pcurve = fromGC->PCurve2();
3124 toGC->PCurve2(Handle(Geom2d_Curve)::DownCast(pcurve->Copy()));
3131 //=======================================================================
3132 //function : HasNewPCurves
3134 //=======================================================================
3135 // Note: This function temporarily not used, because adress to it in
3136 // function FixDummySeam() (see below line 2472) not used too
3138 //static Standard_Boolean HasNewPCurves(const TopoDS_Edge& toedge,
3139 // const TopoDS_Edge& fromedge)
3142 // for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3143 // ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3144 // Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3145 // if ( fromGC.IsNull() ) continue;
3146 // if ( fromGC->IsCurveOnSurface() ) {
3147 // Handle(Geom_Surface) surface = fromGC->Surface();
3148 // TopLoc_Location L = fromGC->Location();
3149 // Standard_Boolean found = Standard_False;
3150 // BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3151 // Handle(BRep_GCurve) toGC;
3152 // for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3153 // toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3154 // if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3155 // surface != toGC->Surface() || L != toGC->Location() ) continue;
3156 // found = Standard_True;
3160 // return Standard_True;
3163 // return Standard_False;
3166 //=======================================================================
3167 //function : FixDummySeam
3169 //=======================================================================
3171 void ShapeFix_Wire::FixDummySeam(const Standard_Integer num)
3173 ShapeAnalysis_Edge sae;
3174 ShapeBuild_Edge sbe;
3175 ShapeBuild_Vertex sbv;
3176 Standard_Integer num1 = (num == NbEdges()) ? 1 : num+1;
3177 Handle(ShapeExtend_WireData) sewd = WireData();
3178 TopoDS_Edge E1 = sewd->Edge(num), E2 = sewd->Edge(num1);
3179 TopoDS_Vertex V1 = sae.FirstVertex(E1), V2 = sae.LastVertex(E2);
3180 TopoDS_Vertex Vm = sbv.CombineVertex ( V1, V2, 1.0001 );
3182 //pnd defining if new pcurves exists
3183 //pdn Temporary not removed
3184 // Standard_Boolean toRemove = !(HasNewPCurves(E1,E2)||HasNewPCurves(E2,E1));
3185 Standard_Boolean toRemove = Standard_False;
3187 //creating new edge with pcurves and new vertex
3188 TopoDS_Vertex Vs = sae.FirstVertex(E2);
3189 if ( Vs.IsSame ( V1 ) || Vs.IsSame ( V2 ) ) Vs = Vm;
3190 TopoDS_Edge newEdge = sbe.CopyReplaceVertices ( E2, Vs, Vm );
3191 CopyReversePcurves(newEdge,E1,E1.Orientation()==E2.Orientation());
3193 B.SameRange(newEdge,Standard_False);
3194 B.SameParameter(newEdge,Standard_False);
3196 if ( !Context().IsNull() ) {
3198 Context()->Remove ( E2 );
3199 Context()->Remove ( E1 );
3202 Context()->Replace ( E2, newEdge );
3203 Context()->Replace ( E1, newEdge.Reversed());
3205 Context()->Replace ( V1, Vm.Oriented(V1.Orientation()) );
3206 Context()->Replace ( V2, Vm.Oriented(V2.Orientation()) );
3209 Standard_Integer next = ( num1 == NbEdges()) ? 1 : num1+1;
3210 Standard_Integer prev = ( num > 1) ? num-1 : NbEdges();
3211 TopoDS_Edge prevE = sewd->Edge(prev), nextE = sewd->Edge(next);
3213 TopoDS_Edge tmpE1=sbe.CopyReplaceVertices( prevE, TopoDS_Vertex(), Vm);
3214 sewd->Set ( tmpE1,prev );
3215 if ( !Context().IsNull() ) Context()->Replace ( prevE, tmpE1);
3217 tmpE1 = sbe.CopyReplaceVertices ( nextE, Vm, TopoDS_Vertex());
3218 sewd->Set ( tmpE1,next );
3219 if ( !Context().IsNull() ) Context()->Replace ( nextE, tmpE1);
3221 //removing edges from wire
3222 Standard_Integer n1, n2;
3224 n1 = num; n2 = num1;
3226 n1 = num1; n2 = num;
3232 //=======================================================================
3233 //function : UpdateWire
3235 //=======================================================================
3237 void ShapeFix_Wire::UpdateWire ()
3239 Handle(ShapeExtend_WireData) sbwd = WireData();
3240 for ( Standard_Integer i=1; i <= sbwd->NbEdges(); i++ ) {
3241 TopoDS_Edge E = sbwd->Edge(i);
3242 TopoDS_Shape S = Context()->Apply ( E );
3243 if ( S == E ) continue;
3244 for ( TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next() )
3245 sbwd->Add ( exp.Current(), i++ );
3246 sbwd->Remove ( i-- );