0026426: Draft angle algorithm modifies input argument + the result of the operation...
[occt.git] / src / ShapeFix / ShapeFix_Wire.cxx
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973c2be1 1// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 2//
973c2be1 3// This file is part of Open CASCADE Technology software library.
b311480e 4//
d5f74e42 5// This library is free software; you can redistribute it and/or modify it under
6// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 7// by the Free Software Foundation, with special exception defined in the file
8// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9// distribution for complete text of the license and disclaimer of any warranty.
b311480e 10//
973c2be1 11// Alternatively, this file may be used under the terms of Open CASCADE
12// commercial license or contractual agreement.
b311480e 13
7fd59977 14//:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586:
15// in FixIntersectingEdges, do not cut edges because of influence on adjacent faces
16// pdn 17.12.98: shifting whole wire in FixShifted
17//:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: removing self-int loops on pcurves
18// pdn 30.12.98: PRO10366 #210: shifting pcurve between two singularities
19// pdn 05.01.98: renaming method FixLittle to FixSmall
20//:l0 abv 10.01.99: remove unused code
21//:n2 abv 22.01.99: ma-test5.igs: IGES read (pref3d): remove degen edge with no pcurve
22//:o4 abv 17.02.99: r0301_db.stp #53082: using parameter isClosed in CheckOrder
23//:p4 abv 23.02.99: PRO9234 #15720: update UV points of edges after shifting pcurves
24//#67 rln 01.03.99 S4135: ims010.igs treatment of Geom_SphericalSurface together with V-closed surfaces
25//:p7 abv 10.03.99 PRO18206: using method IsDegenerated() to detect singularity in FixLacking
26//:r0 abv 19.03.99 PRO7226.stp #489490: remove degenerated edges if several
27//#78 rln 12.03.99 S4135: checking spatial closure with Precision
28//#79 rln 15.03.99 S4135: bmarkmdl.igs: check for gap before shifting on singularities
29// pdn 17.03.99 S4135: implemented fixing not adjacent intersection
30//#86 rln 22.03.99 S4135: repeat of fix self-intersection if it was fixed just before
31//%15 pdn 06.04.99 CTS18546-2: fix of self-intersection is repeated while fixed
32//#3 smh 01.04.99 S4163: Overflow
33//#4 szv S4163: optimization
34//:r7 abv 12.04.99 S4136: FixLk: extend cases of adding degenerated edge
35//:r8 abv 12.04.99 PRO10107.stp #2241: try increasing tolerance of edge for fix IE
36//:s2 abv 21.04.99 S4136, PRO7978.igs: FixLacking extended to be able to bend pcurves
37//szv#9:S4244:19Aug99 Methods FixGaps3d and FixGaps2d were introduced
38//#15 smh 03.04.2000 PRO19800. Checking degenerated point on a surface of revolution.
39// sln 25.09.2001 checking order of 3d and 2d representation curves
40// van 19.10.2001 fix of non-adjacent self-intersection corrected to agree with BRepCheck
41// skl 07.03.2002 fix for bug OCC180
42// skl 15.05.2002 for OCC208 (if few edges have reference to
43// one pcurve we make replace pcurve)
44// PTV 26.06.2002 Remove regressions after fix OCC450
45
42cf5bc1 46#include <Adaptor3d_CurveOnSurface.hxx>
7fd59977 47#include <Bnd_Array1OfBox2d.hxx>
42cf5bc1 48#include <Bnd_Box2d.hxx>
7fd59977 49#include <BndLib_Add2dCurve.hxx>
7fd59977 50#include <BRep_Builder.hxx>
42cf5bc1 51#include <BRep_GCurve.hxx>
7fd59977 52#include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
53#include <BRep_TEdge.hxx>
42cf5bc1 54#include <BRep_Tool.hxx>
7fd59977 55#include <BRepBuilderAPI_MakeEdge.hxx>
56#include <BRepBuilderAPI_MakeVertex.hxx>
57#include <BRepTools.hxx>
42cf5bc1 58#include <Geom2d_BSplineCurve.hxx>
59#include <Geom2d_Curve.hxx>
60#include <Geom2d_Line.hxx>
61#include <Geom2d_TrimmedCurve.hxx>
62#include <Geom2dAdaptor_Curve.hxx>
63#include <Geom2dAdaptor_HCurve.hxx>
64#include <Geom2dConvert.hxx>
65#include <Geom_BSplineCurve.hxx>
66#include <Geom_Curve.hxx>
67#include <Geom_OffsetCurve.hxx>
68#include <Geom_Plane.hxx>
69#include <Geom_SphericalSurface.hxx>
70#include <Geom_Surface.hxx>
71#include <Geom_SurfaceOfRevolution.hxx>
72#include <Geom_TrimmedCurve.hxx>
73#include <GeomAdaptor_Curve.hxx>
74#include <GeomAdaptor_HSurface.hxx>
75#include <GeomAdaptor_Surface.hxx>
76#include <GeomAPI.hxx>
77#include <GeomAPI_ProjectPointOnCurve.hxx>
78#include <GeomConvert_CompCurveToBSplineCurve.hxx>
79#include <gp_Pln.hxx>
80#include <IntRes2d_IntersectionPoint.hxx>
81#include <IntRes2d_SequenceOfIntersectionPoint.hxx>
7fd59977 82#include <Message_Msg.hxx>
42cf5bc1 83#include <Precision.hxx>
84#include <ShapeAnalysis.hxx>
7fd59977 85#include <ShapeAnalysis_Curve.hxx>
86#include <ShapeAnalysis_Edge.hxx>
87#include <ShapeAnalysis_Surface.hxx>
7fd59977 88#include <ShapeAnalysis_TransferParameters.hxx>
42cf5bc1 89#include <ShapeAnalysis_TransferParametersProj.hxx>
90#include <ShapeAnalysis_Wire.hxx>
91#include <ShapeAnalysis_WireOrder.hxx>
92#include <ShapeBuild_Edge.hxx>
93#include <ShapeBuild_ReShape.hxx>
94#include <ShapeBuild_Vertex.hxx>
95#include <ShapeConstruct_ProjectCurveOnSurface.hxx>
96#include <ShapeExtend.hxx>
97#include <ShapeExtend_WireData.hxx>
7fd59977 98#include <ShapeFix.hxx>
42cf5bc1 99#include <ShapeFix_Edge.hxx>
7fd59977 100#include <ShapeFix_IntersectionTool.hxx>
101#include <ShapeFix_SplitTool.hxx>
42cf5bc1 102#include <ShapeFix_Wire.hxx>
103#include <Standard_ErrorHandler.hxx>
104#include <Standard_Failure.hxx>
105#include <Standard_Type.hxx>
106#include <TColgp_Array1OfPnt.hxx>
107#include <TColgp_SequenceOfPnt.hxx>
108#include <TColStd_Array1OfInteger.hxx>
109#include <TColStd_Array1OfReal.hxx>
110#include <TColStd_HSequenceOfReal.hxx>
111#include <TopExp_Explorer.hxx>
112#include <TopLoc_Location.hxx>
113#include <TopoDS.hxx>
114#include <TopoDS_Edge.hxx>
115#include <TopoDS_Face.hxx>
116#include <TopoDS_Vertex.hxx>
117#include <TopoDS_Wire.hxx>
118#include <TopTools_Array1OfShape.hxx>
119#include <TopTools_HSequenceOfShape.hxx>
7fd59977 120
42cf5bc1 121//S4135
7fd59977 122//#######################################################################
123// Constructors, initializations, modes, querying
124//#######################################################################
7fd59977 125//=======================================================================
126//function : ShapeFix_Wire
127//purpose :
128//=======================================================================
fbf3becf 129ShapeFix_Wire::ShapeFix_Wire() : myMaxTailAngleSine(0), myMaxTailWidth(-1)
7fd59977 130{
131 myFixEdge = new ShapeFix_Edge;
132 myAnalyzer = new ShapeAnalysis_Wire;
133 ClearModes();
134 ClearStatuses();
135 myStatusRemovedSegment = Standard_False;
136}
137
138//=======================================================================
139//function : ShapeFix_Wire
140//purpose :
141//=======================================================================
142
fbf3becf 143ShapeFix_Wire::ShapeFix_Wire (
144 const TopoDS_Wire& wire,
145 const TopoDS_Face &face,
146 const Standard_Real prec) : myMaxTailAngleSine(0), myMaxTailWidth(-1)
7fd59977 147{
148 myFixEdge = new ShapeFix_Edge;
149 myAnalyzer = new ShapeAnalysis_Wire;
150 ClearModes();
151 SetMaxTolerance ( prec );
152 myStatusRemovedSegment = Standard_False;
153 Init ( wire, face, prec );
154}
155
156//=======================================================================
157//function : SetPrecision
158//purpose :
159//=======================================================================
160
161void ShapeFix_Wire::SetPrecision (const Standard_Real prec)
162{
163 ShapeFix_Root::SetPrecision ( prec );
164 myAnalyzer->SetPrecision ( prec );
165}
166
fbf3becf 167//=======================================================================
168//function : SetMaxTailAngle
169//purpose :
170//=======================================================================
171void ShapeFix_Wire::SetMaxTailAngle(const Standard_Real theMaxTailAngle)
172{
173 myMaxTailAngleSine = Sin(theMaxTailAngle);
174 myMaxTailAngleSine = (myMaxTailAngleSine >= 0) ? myMaxTailAngleSine : 0;
175}
176
177//=======================================================================
178//function : SetMaxTailWidth
179//purpose :
180//=======================================================================
181void ShapeFix_Wire::SetMaxTailWidth(const Standard_Real theMaxTailWidth)
182{
183 myMaxTailWidth = theMaxTailWidth;
184}
185
7fd59977 186//=======================================================================
187//function : ClearModes
188//purpose :
189//=======================================================================
190
191void ShapeFix_Wire::ClearModes()
192{
193 myTopoMode = Standard_False;
194 myGeomMode = Standard_True;
195 myClosedMode = Standard_True;
196 myPreference2d = Standard_True;
197 myFixGapsByRanges = Standard_False;
198
199 myRemoveLoopMode = -1;
200
201 myFixReversed2dMode = -1;
202 myFixRemovePCurveMode = -1;
203 myFixRemoveCurve3dMode = -1;
204 myFixAddPCurveMode = -1;
205 myFixAddCurve3dMode = -1;
206 myFixSeamMode = -1;
207 myFixShiftedMode = -1;
208 myFixSameParameterMode = -1;
209 myFixVertexToleranceMode = -1;
210
211 myFixNotchedEdgesMode = -1;
212 myFixSelfIntersectingEdgeMode = -1;
213 myFixIntersectingEdgesMode = -1;
214 myFixNonAdjacentIntersectingEdgesMode = -1;
fbf3becf 215 myFixTailMode = 0;
7fd59977 216
217 myFixReorderMode = -1;
218 myFixSmallMode = -1;
219 myFixConnectedMode = -1;
220 myFixEdgeCurvesMode = -1;
221 myFixDegeneratedMode = -1;
222 myFixSelfIntersectionMode = -1;
223 myFixLackingMode = -1;
224 myFixGaps3dMode = -1;
225 myFixGaps2dMode = -1;
226}
227
228//=======================================================================
229//function : ClearStatuses
230//purpose :
231//=======================================================================
232
233void ShapeFix_Wire::ClearStatuses()
234{
235 Standard_Integer emptyStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
236
237 myLastFixStatus = emptyStatus;
238
239 myStatusReorder = emptyStatus;
240 myStatusSmall = emptyStatus;
241 myStatusConnected = emptyStatus;
242 myStatusEdgeCurves = emptyStatus;
243 myStatusDegenerated = emptyStatus;
244 myStatusSelfIntersection = emptyStatus;
245 myStatusLacking = emptyStatus;
246 myStatusGaps3d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
247 myStatusGaps2d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
248 myStatusClosed = emptyStatus;
fbf3becf 249 myStatusNotches = emptyStatus;
250 myStatusFixTails = emptyStatus;
7fd59977 251}
252
253//=======================================================================
254//function : Init
255//purpose :
256//=======================================================================
257
258void ShapeFix_Wire::Init (const TopoDS_Wire& wire,
259 const TopoDS_Face &face, const Standard_Real prec)
260{
261 Load ( wire );
262 SetFace ( face );
263 SetPrecision ( prec );
264}
265
266//=======================================================================
267//function : Init
268//purpose :
269//=======================================================================
270
271void ShapeFix_Wire::Init (const Handle(ShapeAnalysis_Wire)& saw)
272{
273 ClearStatuses();
274 myAnalyzer = saw;
275 myShape.Nullify();
276// SetPrecision ( saw.Precision() );
277}
278
279//=======================================================================
280//function : Load
281//purpose :
282//=======================================================================
283
284void ShapeFix_Wire::Load (const TopoDS_Wire& wire)
285{
286 ClearStatuses();
287
288 TopoDS_Wire W = wire;
289 if ( ! Context().IsNull() ) {
290 TopoDS_Shape S = Context()->Apply ( wire );
291 W = TopoDS::Wire ( S );
292 }
293
294 myAnalyzer->Load ( W );
295 myShape = wire;
296}
297
298//=======================================================================
299//function : Load
300//purpose :
301//=======================================================================
302
303void ShapeFix_Wire::Load (const Handle(ShapeExtend_WireData)& sbwd)
304{
305 ClearStatuses();
306 myAnalyzer->Load ( sbwd );
307 if ( ! Context().IsNull() ) UpdateWire();
308 myShape.Nullify();
309}
310
311//=======================================================================
312//function : NbEdges
313//purpose :
314//=======================================================================
315
316Standard_Integer ShapeFix_Wire::NbEdges() const
317{
318 Handle(ShapeExtend_WireData) sbwd = myAnalyzer->WireData();
319 return sbwd.IsNull() ? 0 : sbwd->NbEdges();
320}
321
322//#######################################################################
323// Fixing methods of API level
324//#######################################################################
325
326//=======================================================================
327//function : Perform
328//purpose : This method performs all the available fixes.
329// If some fix is turned on or off explicitly by the flag,
330// it is called or not depending on that flag
331// Else (i.e. if flag is default) fix is called depending on the
332// situation: default is True, but some fixes are not called or
333// are limited if order of edges in the wire is not OK
334//=======================================================================
335
336Standard_Boolean ShapeFix_Wire::Perform()
337{
338 ClearStatuses();
339 if ( ! IsLoaded() ) return Standard_False;
ed5ca017 340
341 if ( !Context().IsNull() )
342 myFixEdge->SetContext( Context() );
7fd59977 343
344 Standard_Integer Fixed = Standard_False;
345
346 // FixReorder is first, because as a rule wire is required to be ordered
347 // We shall analyze the order of edges in the wire and set appropriate
348 // status even if FixReorder should not be called (if it is forbidden)
349
350 ShapeAnalysis_WireOrder sawo;
351 Standard_Boolean ReorderOK = ( myAnalyzer->CheckOrder ( sawo, myClosedMode ) ==0 );
352 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
353 if(FixReorder()) Fixed = Standard_True;
354 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
355 }
356
357 // FixSmall is allowed to change topology only if mode is set and FixReorder
358 // did not failed
359 if ( NeedFix ( myFixSmallMode, myTopoMode ) ) {
360 if ( FixSmall ( ! myTopoMode || ! ReorderOK, MinTolerance() ) ) {
361 Fixed = Standard_True;
362 // retry reorder if necessary (after FixSmall it can work better)
363 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
364 FixReorder();
365 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
366 }
367 }
368 }
369
370 if ( NeedFix ( myFixConnectedMode, ReorderOK ) ) {
371 if ( FixConnected() ) Fixed = Standard_True;
372 }
373
374 if ( NeedFix ( myFixEdgeCurvesMode ) ) {
375 Standard_Integer savFixShiftedMode = myFixShiftedMode;
376 // turn out FixShifted if reorder not done
377 if ( myFixShiftedMode == -1 && ! ReorderOK ) myFixShiftedMode = 0;
378 if ( FixEdgeCurves() ) Fixed = Standard_True;
379 myFixShiftedMode = savFixShiftedMode;
380 }
381
382 if ( NeedFix ( myFixDegeneratedMode ) ) {
383 if ( FixDegenerated() ) Fixed = Standard_True; // ?? if ! ReorderOK ??
384 }
385
386 //pdn - temporary to test
fbf3becf 387 if (myFixTailMode <= 0 && NeedFix(myFixNotchedEdgesMode, ReorderOK))
388 {
7fd59977 389 Fixed |= FixNotchedEdges();
390 if(Fixed) FixShifted(); //skl 07.03.2002 for OCC180
391 }
392
fbf3becf 393 if (myFixTailMode != 0)
394 {
395 Fixed |= FixTails();
396 if (Fixed)
397 {
398 FixShifted();
399 }
400 }
401
7fd59977 402 if ( NeedFix ( myFixSelfIntersectionMode, myClosedMode ) ) {
403 Standard_Integer savFixIntersectingEdgesMode = myFixIntersectingEdgesMode;
404 // switch off FixIntEdges if reorder not done
405 if ( myFixIntersectingEdgesMode == -1 && ! ReorderOK )
406 myFixIntersectingEdgesMode = 0;
407 if ( FixSelfIntersection() ) Fixed = Standard_True;
408 FixReorder();
409 myFixIntersectingEdgesMode = savFixIntersectingEdgesMode;
410 }
411
412 if ( NeedFix ( myFixLackingMode, ReorderOK ) ) {
413 if ( FixLacking() ) Fixed = Standard_True;
414 }
415
416 // TEMPORARILY without special mode !!!
417 Handle(ShapeExtend_WireData) sbwd = WireData();
418 for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++)
98a43400 419 if ( myFixEdge->FixVertexTolerance (sbwd->Edge (iedge), Face()) )
ed5ca017 420 {
7fd59977 421 Fixed = Standard_True;
ed5ca017 422 }
423
424 if ( !Context().IsNull() )
425 UpdateWire();
7fd59977 426
427 return Fixed;
428}
429
430//=======================================================================
431//function : FixReorder
432//purpose :
433//=======================================================================
434
435Standard_Boolean ShapeFix_Wire::FixReorder()
436{
437 myStatusReorder = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
438 if ( ! IsLoaded() ) return Standard_False;
439
440 // fix in 3d
441 ShapeAnalysis_WireOrder sawo;
442 myAnalyzer->CheckOrder ( sawo, myClosedMode, Standard_True );
443
444 //:abv revolCuts.sat -23: in case of bi-periodic surface check case
445 // of reversed wire specifically. This is necessary because degenerated
446 // cases are possible when direct evaluation will give bad result.
447 Standard_Boolean isReorder = Standard_False;
448 if ( sawo.Status() != 0 &&
449 ! myAnalyzer->Surface().IsNull() &&
450 myAnalyzer->Surface()->Surface()->IsUPeriodic() &&
451 myAnalyzer->Surface()->Surface()->IsVPeriodic() ) {
452 Handle(ShapeExtend_WireData) sbwd2 = new ShapeExtend_WireData;
453 for ( Standard_Integer i=WireData()->NbEdges(); i >=1; i-- )
454 sbwd2->Add ( WireData()->Edge(i) );
455 ShapeAnalysis_WireOrder sawo2;
456 ShapeAnalysis_Wire analyzer2 ( sbwd2, myAnalyzer->Face(), Precision() );
457 analyzer2.CheckOrder ( sawo2, myClosedMode, Standard_True );
458 if ( ( sawo2.Status() >=0 && sawo2.Status() < sawo.Status() ) ||
459 ( sawo.Status() <0 && sawo2.Status() > sawo.Status() ) ) {
460 WireData()->Init ( sbwd2 );
461 sawo = sawo2;
462 isReorder = Standard_True;
463 }
464 }
465
466 FixReorder ( sawo );
467
468 if ( LastFixStatus ( ShapeExtend_FAIL ) )
469 myStatusReorder |= ShapeExtend::EncodeStatus ( LastFixStatus ( ShapeExtend_FAIL1 ) ?
470 ShapeExtend_FAIL1 : ShapeExtend_FAIL2 );
471 if ( ! LastFixStatus ( ShapeExtend_DONE )&& !isReorder ) return Standard_False;
472
473 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
474 if ( sawo.Status() ==2 || sawo.Status() ==-2 )
475 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
476 if ( sawo.Status() <0 )
477 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
673693f1 478 if ( sawo.Status() == 3)
479 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//only shifted
7fd59977 480 return Standard_True;
481}
482
483//=======================================================================
484//function : FixSmall
485//purpose :
486//=======================================================================
487
488Standard_Integer ShapeFix_Wire::FixSmall (const Standard_Boolean lockvtx,
489 const Standard_Real precsmall)
490{
491 myStatusSmall = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
492 if ( ! IsLoaded() ) return Standard_False;
493
494 for ( Standard_Integer i = NbEdges(); i >0; i-- ) {
495 FixSmall ( i, lockvtx, precsmall );
496 myStatusSmall |= myLastFixStatus;
497 }
999d2599 498
7fd59977 499 return StatusSmall ( ShapeExtend_DONE );
500
501}
502
503//=======================================================================
504//function : FixConnected
505//purpose :
506//=======================================================================
507
508Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Real prec)
509{
510 myStatusConnected = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
511 if ( ! IsLoaded() ) return Standard_False;
512
513 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
514 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
515 FixConnected ( i, prec );
516 myStatusConnected |= myLastFixStatus;
517 }
518
519 return StatusConnected ( ShapeExtend_DONE );
520}
521
522//=======================================================================
523//function : FixEdgeCurves
524//purpose :
525//=======================================================================
526
527Standard_Boolean ShapeFix_Wire::FixEdgeCurves()
528{
529 myStatusEdgeCurves = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
530 if ( ! IsLoaded() ) return Standard_False;
531 Standard_Boolean isReady = IsReady();
532
533 Handle(ShapeExtend_WireData) sbwd = WireData();
534 Standard_Integer i, nb = sbwd->NbEdges();
535 TopoDS_Face face = Face();
536 Handle(ShapeFix_Edge) theAdvFixEdge = Handle(ShapeFix_Edge)::DownCast(myFixEdge);
537 if (theAdvFixEdge.IsNull()) myFixReversed2dMode = Standard_False;
538
539 // fix revesred 2d / 3d curves
540 if ( isReady && NeedFix ( myFixReversed2dMode ) ) {
541 for ( i=1; i <= nb; i++ ) {
542 theAdvFixEdge->FixReversed2d ( sbwd->Edge(i), face );
543 if ( theAdvFixEdge->Status ( ShapeExtend_DONE ) )
544 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
545 if ( theAdvFixEdge->Status ( ShapeExtend_FAIL ) )
546 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
547 }
548 }
549
550 // add / remove pcurve
551 if ( isReady && NeedFix ( myFixRemovePCurveMode, Standard_False ) ) {
552 for ( i=1; i <= nb; i++ ) {
553 myFixEdge->FixRemovePCurve ( sbwd->Edge(i), face );
554 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
555 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
556 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
557 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
558 }
559 }
560
561 if ( isReady && NeedFix ( myFixAddPCurveMode ) ) {
562 Standard_Integer overdegen = 0; //:c0
563 for ( i=1; i <= nb; i++ ) {
564 myFixEdge->FixAddPCurve ( sbwd->Edge(i), face, sbwd->IsSeam(i),
565 myAnalyzer->Surface(), Precision() );
566 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
567 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
568 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
569 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
570
571 //if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 )
572 // && BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
573 if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 ) ) {
574 // abv 24 Feb 00: trj3_s1-ac-214.stp #1631 etc.: try to split the edge in singularity
575 if ( ! Context().IsNull() ) {
576 ShapeBuild_Edge sbe;
577 TopoDS_Edge E = sbwd->Edge ( i );
578 ShapeAnalysis_Curve SAC;
579 Standard_Real a, b;
580 Handle(Geom_Curve) C = BRep_Tool::Curve ( E, a, b );
581 Handle(ShapeAnalysis_Surface) S = myAnalyzer->Surface();
582 Standard_Integer nbs = S->NbSingularities(MinTolerance());
583 GeomAdaptor_Curve GAC ( C, a, b );
584 TColStd_SequenceOfReal seq;
585 for (Standard_Integer j=1; j <= nbs; j++) {
586 Standard_Real Preci;
587 gp_Pnt2d pd1, pd2;
588 gp_Pnt P3d, pr;
589 Standard_Real par1, par2, split;
590 Standard_Boolean tmpUIsoDeg;
591 S->Singularity (j, Preci, P3d, pd1, pd2, par1, par2, tmpUIsoDeg);
592 if ( SAC.Project ( GAC, P3d, MinTolerance(), pr, split, Standard_True ) < Max(Preci,MinTolerance()) ) {
593 if ( split - a > ::Precision::PConfusion() &&
594 b - split > ::Precision::PConfusion() ) {
595 Standard_Integer k;
596 for ( k=1; k <= seq.Length(); k++ ) {
597 if ( split < seq(k)-::Precision::PConfusion() ) {
598 seq.InsertBefore ( k, split );
599 break;
600 }
601 else if ( split < seq(k)+::Precision::PConfusion() ) break;
602 }
603 if ( k > seq.Length() ) seq.Append ( split );
604 }
605 }
606 }
607 if ( seq.Length() >0 ) { // supposed that edge is SP
0797d9d3 608#ifdef OCCT_DEBUG
7fd59977 609 cout << "Edge going over singularity detected; splitted" << endl;
610#endif
3163e9fd 611 Standard_Boolean isFwd = ( E.Orientation() == TopAbs_FORWARD );
612 E.Orientation ( TopAbs_FORWARD );
613
614 //if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
615 // sbe.RemovePCurve ( E, face );
616
617 //10.04.2003 skl for using trimmed lines as pcurves
618 ShapeAnalysis_Edge sae;
619 if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
620 sbe.RemovePCurve ( E, face );
621 else {
622 if(sae.HasPCurve(E,face)) {
623 Handle(Geom2d_Curve) C2d;
624 Standard_Real fp2d,lp2d;
625 if(sae.PCurve(E,face,C2d,fp2d,lp2d)) {
626 if( !C2d->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)) )
627 sbe.RemovePCurve(E,face);
628 }
629 }
630 }
631
632// myFixEdge->FixSameParameter ( E ); // to ensure SameRange & SP
633 BRep_Builder B;
634 TopoDS_Vertex V1, V2, V;
635 //ShapeAnalysis_Edge sae;
636 V1 = sae.FirstVertex ( E );
637 V2 = sae.LastVertex ( E );
638
639 Handle(ShapeExtend_WireData) sw = new ShapeExtend_WireData;
640 for ( Standard_Integer k=0; k <= seq.Length(); k++ )
641 {
642 Standard_Real split = ( k < seq.Length() ? seq(k+1) : b );
643 if ( k < seq.Length() )
644 {
645 B.MakeVertex ( V, C->Value(split), BRep_Tool::Tolerance(E) );
646 //try increase tolerance before splitting
647 Standard_Real aDist = BRep_Tool::Pnt(V1).Distance(BRep_Tool::Pnt(V));
648 if (aDist < BRep_Tool::Tolerance(V1) * 1.01) {
649 B.UpdateVertex(V1, Max(aDist, BRep_Tool::Tolerance(V1)));
650 a = split;
651 V1 = V;
652 continue;
653 }
654 else
655 {
656 aDist = BRep_Tool::Pnt(V2).Distance(BRep_Tool::Pnt(V));
657 if (aDist < BRep_Tool::Tolerance(V2) * 1.01) {
658 B.UpdateVertex(V, Max(aDist, BRep_Tool::Tolerance(V2)));
659 b = split;
660 V2 = V;
661 continue;
7fd59977 662 }
3163e9fd 663 }
664 }
665 else
666 {
667 V = V2;
668 }
7fd59977 669
3163e9fd 670 TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
671 if( BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
672 //TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
673 B.Range ( edge, a, split );
674 sw->Add ( edge );
675 }
676 else {
677 //TopoDS_Edge edge = sbe.CopyReplaceVertices(sbwd->Edge(i),V1,V);
678 Handle(ShapeAnalysis_TransferParameters) sftp =
679 new ShapeAnalysis_TransferParameters(E,face);
680 sftp->TransferRange(edge, a, split, Standard_False);
681 sw->Add(edge);
682 }
683 //sw->Add(edge);
684 a = split;
685 V1 = V;
686 }
687 if ( ! isFwd ) {
688 sw->Reverse();
689 E.Orientation ( TopAbs_REVERSED );
690 }
691 Context()->Replace ( E, sw->Wire() );
692 UpdateWire();
693 nb = sbwd->NbEdges();
694 i--;
695 continue;
696 }
7fd59977 697 }
698
699 overdegen = i;
700 }
701 }
702
703 //:c0 abv 20 Feb 98: treat case of curve going over degenerated pole and seam
704 if ( overdegen && myAnalyzer->Surface()->IsUClosed(Precision()) ) {
705 ShapeBuild_Edge sbe;
706 Standard_Real URange, SUF, SUL, SVF, SVL;
707 myAnalyzer->Surface()->Bounds(SUF, SUL, SVF, SVL);
708 URange = (Abs(SUL - SUF));
709 gp_XY vec(0,0);
710 ShapeAnalysis_Edge sae;
711 Standard_Integer k;
712 for ( k = 1; k <= nb; k++) {
713 Standard_Real cf, cl;
714 Handle(Geom2d_Curve) c2d;
715 if ( ! sae.PCurve ( sbwd->Edge(k), face, c2d, cf, cl, Standard_True ) ) break;
716 vec += c2d->Value(cl).XY() - c2d->Value(cf).XY();
717 }
718 if ( k > nb && Abs ( Abs ( vec.X() ) - URange ) < 0.1 * URange ) {
719 sbe.RemovePCurve (sbwd->Edge ( overdegen ), face);
720 myFixEdge->Projector()->AdjustOverDegenMode() = Standard_False;
721 myFixEdge->FixAddPCurve ( sbwd->Edge(overdegen), face, sbwd->IsSeam(overdegen), myAnalyzer->Surface(), Precision());
722 }
0797d9d3 723#ifdef OCCT_DEBUG
7fd59977 724 cout << "Edge going over singularity detected; pcurve adjusted" << endl;
725#endif
726 }
727 }
728
729 // add / remove pcurve
730 if ( isReady && NeedFix ( myFixRemoveCurve3dMode, Standard_False ) ) {
731 for ( i=1; i <= nb; i++ ) {
732 myFixEdge->FixRemoveCurve3d ( sbwd->Edge(i) );
733 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
734 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
735 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
736 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
737 }
738 }
739 if ( NeedFix ( myFixAddCurve3dMode ) ) {
740 for ( i=1; i <= nb; i++ ) {
741 myFixEdge->FixAddCurve3d ( sbwd->Edge(i) );
742 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
743 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
744 if ( myFixEdge->Status ( ShapeExtend_FAIL ) ) {
745 //:abv 29.08.01: Spatial_firex_lofting.sat: if 3d curve cannot
746 // be built because edge has no pcurves either, remove that edge
747 Handle(Geom2d_Curve) C;
748 Handle(Geom_Surface) S;
749 TopLoc_Location L;
dfc06d1f 750 Standard_Real first = 0., last = 0.;
7fd59977 751 BRep_Tool::CurveOnSurface ( sbwd->Edge(i), C, S, L, first, last );
dfc06d1f 752 if ( C.IsNull() || Abs (last - first) < Precision::PConfusion())
999d2599
D
753 {
754 SendWarning ( sbwd->Edge ( i ), Message_Msg ( "FixWire.FixCurve3d.Removed" ) );// Incomplete edge (with no pcurves or 3d curve) removed
7fd59977 755 sbwd->Remove ( i-- );
756 nb--;
757 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
dfc06d1f 758 FixConnected (i + 1, Precision());
7fd59977 759 }
760 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL5 );
761 }
762 }
763 }
764
765 // fix seam
766 if ( isReady && NeedFix ( myFixSeamMode, Standard_False ) ) {
767 for ( i=1; i <= nb; i++ ) {
768 FixSeam ( i );
769 if ( LastFixStatus ( ShapeExtend_DONE ) )
770 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
771 if ( LastFixStatus ( ShapeExtend_FAIL ) )
772 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL6 );
773 }
774 }
775
776 // fix shifted
777 if ( isReady && NeedFix ( myFixShiftedMode ) ) {
778 FixShifted();
779 if ( LastFixStatus ( ShapeExtend_DONE ) )
780 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
781 if ( LastFixStatus ( ShapeExtend_FAIL ) )
782 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL7 );
783 }
784
785 // fix same parameter
ed5ca017 786 if ( isReady && NeedFix ( myFixSameParameterMode ) ){
7fd59977 787 for ( i=1; i <= nb; i++ ) {
788 // skl 28.10.2004 for OCC6366 - check SameRange
789 ShapeAnalysis_Edge sae;
790 Standard_Real First, Last;
791 Handle(Geom_Curve) tmpc3d = BRep_Tool::Curve(sbwd->Edge(i), First, Last);
792 if(sae.HasPCurve(sbwd->Edge(i),face)) {
793 Handle(Geom2d_Curve) C2d;
794 Standard_Real fp2d,lp2d;
795 if(sae.PCurve(sbwd->Edge(i),face,C2d,fp2d,lp2d)) {
796 if( fabs(First-fp2d)>Precision::PConfusion() ||
44a87d69 797 fabs(Last-lp2d)>Precision::PConfusion() ) {
7fd59977 798 BRep_Builder B;
799 B.SameRange(sbwd->Edge(i),Standard_False);
800 }
801 }
802 }
98a43400 803 myFixEdge->FixSameParameter ( sbwd->Edge(i), Face());
7fd59977 804 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
805 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
806 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
807 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
808 }
809 }
ed5ca017 810
7fd59977 811 //:abv 10.06.02: porting C40 -> dev (CC670-12608.stp): moved from Perform()
812 // Update with face is needed for plane surfaces (w/o stored pcurves)
ed5ca017 813 if ( NeedFix ( myFixVertexToleranceMode ) )
814 {
815 for ( i=1; i <= nb; i++)
816 {
98a43400 817 myFixEdge->FixVertexTolerance (sbwd->Edge (i), Face());
7fd59977 818 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
ed5ca017 819 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
7fd59977 820 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
ed5ca017 821 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
7fd59977 822 }
ed5ca017 823 if (!Context().IsNull() )
824 UpdateWire();
7fd59977 825 }
826
ed5ca017 827
7fd59977 828 return StatusEdgeCurves ( ShapeExtend_DONE );
829}
830
831//=======================================================================
832//function : FixDegenerated
833//purpose :
834//=======================================================================
835
836Standard_Boolean ShapeFix_Wire::FixDegenerated()
837{
838 myStatusDegenerated = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
839 if ( ! IsReady() ) return Standard_False;
840
841// if ( ! myAnalyzer->Surface()->HasSingularities ( Precision() ) ) return;
842
843 Standard_Integer lastcoded = -1, prevcoded = 0;
844 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
845 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
846 FixDegenerated ( i );
847 myStatusDegenerated |= myLastFixStatus;
848 //:r0 abv 19 Mar 99: PRO7226.stp #489490: remove duplicated degenerated edges
849 Standard_Integer coded = ( LastFixStatus ( ShapeExtend_DONE2 ) ? 1 : 0 );
850 if ( lastcoded ==-1 ) lastcoded = coded;
851 if ( coded && ( prevcoded || ( i ==1 && lastcoded ) ) && NbEdges() >1 ) {
852 Handle(ShapeExtend_WireData) sbwd = WireData();
853 BRep_Builder B;
854 sbwd->Remove ( i );
855 if ( ! prevcoded ) i = NbEdges();
856 B.Degenerated ( sbwd->Edge ( i++ ), Standard_False );
857 prevcoded = 0;
858 }
859 else prevcoded = coded;
860 }
7fd59977 861
862 return StatusDegenerated ( ShapeExtend_DONE );
863}
864
865
866//=======================================================================
867//function : FixSelfIntersection
868//purpose : Applies FixSelfIntersectingEdge and FixIntersectingEdges
869// and removes wrong edges
870//=======================================================================
871
872Standard_Boolean ShapeFix_Wire::FixSelfIntersection()
873{
874 myStatusSelfIntersection = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
875 if ( ! IsReady() ) return Standard_False;
876
877 Handle(ShapeExtend_WireData) sbwd = WireData();
878 Standard_Integer nb = sbwd->NbEdges();
879
880 if ( NeedFix ( myFixSelfIntersectingEdgeMode ) ) {
881 if (myRemoveLoopMode<1)
882 for ( Standard_Integer num=1; num <=nb; num++ )
883 {
884 FixSelfIntersectingEdge ( num );
885 myStatusSelfIntersection |= myLastFixStatus;
886 }
887 else if (myRemoveLoopMode==1)
888 {
889 for ( Standard_Integer num=1; num <=nb; num++ )
890 {
891 FixSelfIntersectingEdge ( num );
892 myStatusSelfIntersection |= myLastFixStatus;
893 if(nb<sbwd->NbEdges()) num--;
894 nb = sbwd->NbEdges();
895 }
896 FixClosed(Precision());
897 }
898 }
899
900 if ( NeedFix ( myFixIntersectingEdgesMode ) ) {
901 Standard_Integer num = ( myClosedMode ? 1 : 2 );
902 for ( ; nb >1 && num <= nb; num++ ) {
903 FixIntersectingEdges ( num );
904 if ( LastFixStatus ( ShapeExtend_FAIL1 ) )
905 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
906 if ( LastFixStatus ( ShapeExtend_FAIL2 ) )
907 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
908 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) continue;
909
910 if ( LastFixStatus ( ShapeExtend_DONE1 ) )
911 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
912 if ( LastFixStatus ( ShapeExtend_DONE2 ) )
913 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
914 if(LastFixStatus (ShapeExtend_DONE6))
915 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
916
3163e9fd 917 if ( /*! myTopoMode ||*/ nb < 3 ) {
918 //#86 rln 22.03.99 sim2.igs, entity 4292: After fixing of self-intersecting
919 //BRepCheck finds one more self-intersection not found by ShapeAnalysis
920 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
921
922 // if the tolerance was modified we should recheck the result, if it was enough
95a39468 923 if ( LastFixStatus ( ShapeExtend_DONE7 ) ) //num--;
924 FixIntersectingEdges ( num );
3163e9fd 925 continue;
7fd59977 926 }
927
928 if ( LastFixStatus ( ShapeExtend_DONE4 ) ) sbwd->Remove ( num );
929 if ( LastFixStatus ( ShapeExtend_DONE3 ) ) sbwd->Remove ( num >1 ? num-1 : nb+num-1 );
930 if ( LastFixStatus ( ShapeExtend_DONE4 ) ||
931 LastFixStatus ( ShapeExtend_DONE3 ) ) {
932 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
933 num = ( myClosedMode ? 1 : 2 );
934 nb = sbwd->NbEdges();
0797d9d3 935#ifdef OCCT_DEBUG
7fd59977 936 cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Edge removed" << endl;
937#endif
938 }
939 else {
940 //#86 rln 22.03.99
941 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
95a39468 942 FixIntersectingEdges ( num );
3163e9fd 943 /*if ( LastFixStatus ( ShapeExtend_DONE7 ) )*/
944 // Always revisit the fixed edge
95a39468 945 //num--;
7fd59977 946 }
947 }
948 }
ed5ca017 949
7fd59977 950 //pdn 17.03.99 S4135 to avoid regression fixing not adjacent intersection
951 if ( NeedFix ( myFixNonAdjacentIntersectingEdgesMode ) ) {
952
953 ShapeFix_IntersectionTool ITool(Context(),Precision());
954 Standard_Integer NbSplit=0, NbCut=0,NbRemoved=0;
955 if(ITool.FixSelfIntersectWire(sbwd,myAnalyzer->Face(),NbSplit,NbCut,NbRemoved)) {
956 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//gka 06.09.04
957 }
958 if( NbSplit>0 || NbRemoved>0 ) {
959 if(NbRemoved>0) myStatusRemovedSegment = Standard_True;
960 //Load(sbwd); commented by skl 29.12.2004 for OCC7624, instead this
961 // string inserted following three strings:
962 myAnalyzer->Load ( sbwd );
963 if ( ! Context().IsNull() ) UpdateWire();
964 myShape.Nullify();
965 }
0797d9d3 966#ifdef OCCT_DEBUG
7fd59977 967 if (StatusSelfIntersection (ShapeExtend_DONE5))
968 cout<<"Warning: ShapeFix_Wire::FixIntersection: Non-adjacent intersection fixed (split-"
969 <<NbSplit<<", cut-"<<NbCut<<", removed-"<<NbRemoved<<")"<<endl;
970#endif
971
972/*
973 Bnd_Array1OfBox2d boxes(1,nb);
974 TopLoc_Location L;
975 const Handle(Geom_Surface)& S = BRep_Tool::Surface(Face(), L);
976 Handle(Geom2d_Curve) c2d;
977 Standard_Real cf,cl;
978 ShapeAnalysis_Edge sae;
979 for(Standard_Integer i = 1; i <= nb; i++){
980 TopoDS_Edge E = sbwd->Edge (i);
981 if(sae.PCurve (E,S,L,c2d,cf,cl,Standard_False)) {
982 Bnd_Box2d box;
983 Geom2dAdaptor_Curve gac;
984 Standard_Real aFirst = c2d->FirstParameter();
985 Standard_Real aLast = c2d->LastParameter();
986 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
987 && (cf < aFirst || cl > aLast)) {
988 //pdn avoiding problems with segment in Bnd_Box
989 gac.Load(c2d);
990 }
991 else
992 gac.Load(c2d,cf,cl);
993 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
994 boxes(i) = box;
995 }
996 }
997
998 Standard_Boolean isFail = Standard_False, isDone = Standard_False;
999 for(Standard_Integer num1 = 1; num1 < nb-1; num1++) {
1000 Standard_Integer fin = (num1 == 1 ? nb-1 : nb);
1001 for(Standard_Integer num2 = num1+2; num2 <= fin; num2++)
1002 if(!boxes(num1).IsOut(boxes(num2))){
1003 FixIntersectingEdges (num1, num2);
1004 isFail |= LastFixStatus ( ShapeExtend_FAIL1 );
1005 isDone |= LastFixStatus ( ShapeExtend_DONE1 );
1006 }
1007 }
1008
1009 if(isFail)
1010 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1011 if(isDone)
1012 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
0797d9d3 1013#ifdef OCCT_DEBUG
7fd59977 1014 if (StatusSelfIntersection (ShapeExtend_DONE5))
1015 cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Non ajacent intersection fixed" << endl;
1016#endif
1017*/
1018 }
1019
7fd59977 1020 return StatusSelfIntersection ( ShapeExtend_DONE );
1021}
1022
1023
1024//=======================================================================
1025//function : FixLacking
1026//purpose :
1027//=======================================================================
1028
1029Standard_Boolean ShapeFix_Wire::FixLacking ( const Standard_Boolean force )
1030{
1031 myStatusLacking = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1032 if ( ! IsReady() ) return Standard_False;
1033
1034 Standard_Integer start = ( myClosedMode ? 1 : 2 );
1035 for ( Standard_Integer i = start; i <= NbEdges(); i++ ) {
1036 FixLacking ( i, force );
1037 myStatusLacking |= myLastFixStatus;
1038 }
1039
1040 return StatusLacking ( ShapeExtend_DONE );
1041}
1042
1043
1044//=======================================================================
1045//function : FixClosed
1046//purpose :
1047//=======================================================================
1048
1049Standard_Boolean ShapeFix_Wire::FixClosed (const Standard_Real prec)
1050{
1051 myStatusClosed = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1052 if ( ! IsLoaded() || NbEdges() <1 ) return Standard_False;
1053
1054 FixConnected ( 1, prec );
1055 if ( LastFixStatus ( ShapeExtend_DONE ) )
1056 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1057 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1058 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1059
1060 FixDegenerated ( 1 );
1061 if ( LastFixStatus ( ShapeExtend_DONE ) )
1062 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1063 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1064 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1065
1066 FixLacking ( 1 );
1067 if ( LastFixStatus ( ShapeExtend_DONE ) )
1068 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1069 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1070 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1071
1072 return StatusClosed ( ShapeExtend_DONE );
1073}
1074
1075
1076//#######################################################################
1077// Fixing methods of advanced level
1078//#######################################################################
1079
1080//=======================================================================
1081//function : FixReorder
1082//purpose :
1083//=======================================================================
1084
1085Standard_Boolean ShapeFix_Wire::FixReorder (const ShapeAnalysis_WireOrder& wi)
1086{
1087 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1088 if ( ! IsLoaded() ) return Standard_False;
1089
1090 Standard_Integer status = wi.Status();
1091 if ( status ==0 ) return Standard_False;
1092 if ( status <=-10 ) {
1093 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1094 return Standard_False;
1095 }
1096
1097 Handle(ShapeExtend_WireData) sbwd = WireData();
1098 Standard_Integer i, nb = sbwd->NbEdges();
1099 if ( nb != wi.NbEdges() ) {
1100 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1101 return Standard_False;
1102 }
1103 // D abord on protege
1104 for (i = 1; i <= nb; i ++) {
1105 if ( wi.Ordered(i) == 0 ) {
1106 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1107 return Standard_False;
1108 }
1109 }
1110
1111 Handle(TopTools_HSequenceOfShape) newedges = new TopTools_HSequenceOfShape();
1112 for ( i=1; i <= nb; i++ )
1113 newedges->Append ( sbwd->Edge ( wi.Ordered(i) ) );
1114 for ( i=1; i <= nb; i++ )
1115 sbwd->Set ( TopoDS::Edge ( newedges->Value(i) ), i );
1116
1117 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1118 return Standard_True;
1119}
1120
1121
1122//=======================================================================
1123//function : FixSmall
1124//purpose :
1125//=======================================================================
1126
1127Standard_Boolean ShapeFix_Wire::FixSmall (const Standard_Integer num,
1128 const Standard_Boolean lockvtx,
1129 const Standard_Real precsmall)
1130{
1131 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1132 if ( ! IsLoaded() || NbEdges() <=1 ) return Standard_False;
1133
1134 // analysis:
1135 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
1136 if (theAdvAnalyzer.IsNull()) return Standard_False;
1137 Standard_Integer n = ( num >0 ? num : NbEdges() );
1138 theAdvAnalyzer->CheckSmall ( n, precsmall );
1139 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1140 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1141//:n2 return Standard_False;
1142 }
1143
1144 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1145
1146 // OUI cette edge est NULLE
1147
1148 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) ) {
1149 // edge is small, but vertices are not the same..
1150 if ( lockvtx || ! myTopoMode ) {
1151 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1152 return Standard_False;
1153 }
1154 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1155 }
1156 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1157
1158 // action: remove edge
999d2599
D
1159 if ( ! Context().IsNull() )
1160 Context()->Remove(WireData()->Edge(n));
1161 SendWarning ( WireData()->Edge ( n ), Message_Msg ( "FixAdvWire.FixSmall.MSG0" ) ); //Small edge(s) removed
7fd59977 1162 WireData()->Remove ( n );
1163
1164 // call FixConnected in the case if vertices of the small edge were not the same
1165 if ( LastFixStatus ( ShapeExtend_DONE2 ) ) {
1166 Standard_Integer savLastFixStatus = myLastFixStatus;
1167 //#43 rln 20.11.98 S4054 CTS18544 entity 21734 removing last edge
1168 FixConnected ( n <= NbEdges() ? n : 1, precsmall );
1169 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1170 savLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1171 myLastFixStatus = savLastFixStatus;
1172 }
999d2599 1173
7fd59977 1174 return Standard_True;
1175}
1176
1177
1178//=======================================================================
1179//function : FixConnected
1180//purpose :
1181//=======================================================================
1182
1183Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Integer num,
1184 const Standard_Real prec)
1185{
1186 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1187 if ( ! IsLoaded() || NbEdges() <=0 ) return Standard_False;
1188
1189 // analysis
1190
1191 myAnalyzer->CheckConnected ( num, prec < 0 ? MaxTolerance() : prec );
1192 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1193 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1194 }
1195 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1196
1197 // action: replacing vertex
1198
1199 Handle(ShapeExtend_WireData) sbwd = WireData();
1200 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1201 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1202 TopoDS_Edge E1 = sbwd->Edge(n1);
1203 TopoDS_Edge E2 = sbwd->Edge(n2);
1204
1205 ShapeAnalysis_Edge sae;
1206 TopoDS_Vertex V1 = sae.LastVertex (E1);
1207 TopoDS_Vertex V2 = sae.FirstVertex (E2);
1208 TopoDS_Vertex V;
1209
1210 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ) { // absolutely confused
1211 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1212 //#40 rln 18.11.98 S4054 BUC60035 entity 2393 (2-nd sub-curve is edge with the same vertex)
1213 if ( V2.IsSame ( sae.LastVertex (E2) ) ) {
1214 V = V2;
1215 if ( ! Context().IsNull() )
1216 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1217 }
1218 else {
1219 V = V1;
1220 if ( ! Context().IsNull() )
1221 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1222 }
1223 }
1224 else { // on moyenne ...
1225 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) )
1226 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1227 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1228 ShapeBuild_Vertex sbv;
1229 V = sbv.CombineVertex ( V1, V2, 1.0001 );
1230 if ( ! Context().IsNull() ) {
1231 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1232 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1233 }
1234 }
1235
1236 // replace vertices to a new one
1237 ShapeBuild_Edge sbe;
1238 if ( sbwd->NbEdges() <2 ) {
1239 if(E2.Free() && myTopoMode) {
1240 BRep_Builder B;
1241 B.Remove(E2,sae.FirstVertex(E2));
1242 B.Remove(E2,sae.LastVertex(E2));
1243 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1244 B.Add(E2,V.Oriented(TopAbs_REVERSED));
1245 }
1246 else {
1247 TopoDS_Edge tmpE = sbe.CopyReplaceVertices ( E2, V, V );
1248 sbwd->Set ( tmpE, n2 );
1249 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE);
1250 }
1251 }
1252 else {
1253 if(E2.Free() &&E1.Free() && myTopoMode) {
1254 BRep_Builder B;
1255 B.Remove(E2,sae.FirstVertex(E2));
1256 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1257 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1258 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1259 B.Remove(E1,sae.LastVertex(E1));
1260 B.Add(E1,V.Oriented(TopAbs_REVERSED));
1261 }
1262 }
1263 else {
1264 TopoDS_Edge tmpE2 = sbe.CopyReplaceVertices ( E2, V, TopoDS_Vertex() );
1265 sbwd->Set ( tmpE2, n2 );
1266 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE2);
1267 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1268 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1269 TopoDS_Edge tmpE1 = sbe.CopyReplaceVertices ( E1, TopoDS_Vertex(), V );
1270 sbwd->Set (tmpE1, n1 );
1271 if ( ! Context().IsNull() ) Context()->Replace(E1,tmpE1);
1272 }
1273 }
1274 }
1275 if ( ! Context().IsNull() ) UpdateWire();
1276
1277 return Standard_True;
1278}
1279
1280
1281//=======================================================================
1282//function : FixSeam
1283//purpose :
1284//=======================================================================
1285
1286Standard_Boolean ShapeFix_Wire::FixSeam (const Standard_Integer num)
1287{
1288 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1289 if ( ! IsReady() ) return Standard_False;
1290
1291 Handle(Geom2d_Curve) C1, C2;
1292 Standard_Real cf, cl;
1293 if ( ! myAnalyzer->CheckSeam (num, C1, C2, cf, cl) ) return Standard_False;
1294
1295 BRep_Builder B;
1296 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
1297 B.UpdateEdge (E, C2,C1, Face(), 0.); //:S4136: BRep_Tool::Tolerance(E)
1298 B.Range (E, Face(),cf,cl);
1299 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1300
1301 return Standard_True;
1302}
1303
1304//=======================================================================
1305//function : FixShifted
1306//purpose : fix parametric curves which may be shifted
1307// to whole parametric range of closed surface as result of recomputing
1308// from 3d representation.
1309// This can be a curve on a seam or near it.
1310// This function is to be called before FixDegenerated.
1311// LIMITATION: this function cannot fix cases when, e.g., closed wire is
1312// composed of two meridians of the sphere and one of them is seam.
1313// NOTE: wire is supposed to be closed and sorted !
1314//=======================================================================
1315
1316//:p4 abv 23.02.99: PRO9234 #15720: update UV points of edge
1317static void UpdateEdgeUVPoints (TopoDS_Edge &E, const TopoDS_Face &F)
1318{
1319 Standard_Real first, last;
1320 BRep_Tool::Range ( E, F, first, last );
1321 BRep_Builder().Range ( E, F, first, last );
1322}
1323
1324
1325//=======================================================================
1326//function : FixShifted
1327//purpose :
1328//=======================================================================
1329
1330Standard_Boolean ShapeFix_Wire::FixShifted()
1331{
1332 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1333 if ( ! IsReady() ) return Standard_False;
1334
1335 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
1336 //#78 rln 12.03.99 S4135: checking spatial closure with Precision
1337 Standard_Boolean uclosed = surf->IsUClosed(Precision());
1338 Standard_Boolean vclosed = surf->IsVClosed(Precision()) || surf->Surface()->IsKind (STANDARD_TYPE(Geom_SphericalSurface));
1339 //#67 rln 01.03.99 S4135: ims010.igs entity D11900 (2D contour is 2*PI higher than V range [-pi/2,p/2])
1340
1341 // PTV 26.06.2002 begin
1342 // CTS18546-2.igs entity 2222: base curve is periodic and 2dcurve is shifted
1343 Standard_Boolean IsVCrvClosed = Standard_False;
1344 Standard_Real VRange = 1.;
1345 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1346 Handle(Geom_SurfaceOfRevolution) aSurOfRev = Handle(Geom_SurfaceOfRevolution)::DownCast(surf->Surface());
1347 Handle(Geom_Curve) aBaseCrv = aSurOfRev->BasisCurve();
1348 while ( (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve))) ||
1349 (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) ) {
1350 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve)))
1351 aBaseCrv = Handle(Geom_OffsetCurve)::DownCast(aBaseCrv)->BasisCurve();
1352 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve)))
1353 aBaseCrv = Handle(Geom_TrimmedCurve)::DownCast(aBaseCrv)->BasisCurve();
1354 }
1355 if (aBaseCrv->IsPeriodic()) {
1356 vclosed = Standard_True;
1357 VRange = aBaseCrv->Period();
1358 IsVCrvClosed = Standard_True;
0797d9d3 1359#ifdef OCCT_DEBUG
7fd59977 1360 cout << "Warning: ShapeFix_Wire::FixShifted set vclosed True for Surface of Revolution" << endl;
1361#endif
1362 }
1363 }
1364 // PTV 26.06.2002 end
1365 if ( ! uclosed && ! vclosed ) return Standard_False;
1366
1367 Standard_Real URange, /*VRange,*/ SUF, SUL, SVF, SVL;
1368 surf->Surface()->Bounds ( SUF, SUL, SVF, SVL );
1369 Standard_Real SUMid, SVMid;
1370 SUMid = 0.5*(SUF+SUL);
1371 SVMid = 0.5*(SVF+SVL);
1372 if (uclosed) URange = Abs ( SUL - SUF );
1373 else URange = RealLast();
eafb234b 1374 if (!IsVCrvClosed) {
7fd59977 1375 if (vclosed) VRange = Abs ( SVL - SVF );
1376 else VRange = RealLast();
eafb234b 1377 }
7fd59977 1378 Standard_Real UTol = 0.2 * URange, VTol = 0.2 * VRange;
1379
1380 Handle(ShapeExtend_WireData) sbwdOring = WireData();
1381 ShapeAnalysis_Edge sae;
1382 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData;
1383 for ( Standard_Integer i=1; i <= sbwdOring->NbEdges(); i++ ) {
1384 TopoDS_Edge E1 = sbwdOring->Edge ( i );
1385 if ( BRep_Tool::Degenerated(E1) && !sae.HasPCurve(E1,Face()))
1386 continue;
1387
1388 sbwd->Add(E1);
1389 }
1390
1391 ShapeBuild_Edge sbe;
1392 Standard_Integer nb = sbwd->NbEdges();
1393 Standard_Boolean end = (nb == 0), degstop = Standard_False;;
1394 Standard_Integer stop = nb;
1395 Standard_Integer degn2 = 0;
1396 gp_Pnt pdeg;
1397 //pdn 17.12.98 r0901_ec 38237 to shift wire at 0
1398
1399 //GeomAdaptor_Surface& GAS = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface(); //SK
1400 Bnd_Box2d box;
1401 for ( Standard_Integer n2=1, n1=nb; ! end; n1 = n2++ ) {
1402 if ( n2 > nb ) n2 = 1;
1403 if ( n2 == stop ) end = Standard_True;
1404
1405 TopoDS_Edge E1 = sbwd->Edge ( n1 );
1406 TopoDS_Edge E2 = sbwd->Edge ( n2 );
1407
3163e9fd 1408 if ( BRep_Tool::Degenerated(E1) || BRep_Tool::Degenerated(E2) )
1409 {
1410 if ( ! degstop )
1411 {
1412 stop = n2;
1413 degstop = Standard_True;
1414 }
7fd59977 1415 continue;
1416 }
1417
1418 TopoDS_Vertex V = sae.FirstVertex ( E2 );
46aed280 1419 if (V.IsNull())
1420 continue;
1421
7fd59977 1422 gp_Pnt p = BRep_Tool::Pnt ( V );
1423
1d47d8d0 1424 Standard_Real a1 = 0., b1 = 0., a2 = 0., b2 = 0.;
7fd59977 1425 Handle(Geom2d_Curve) c2d1, c2d2;
1426
1427 //:abv 29.08.01: torCuts.sat: distinguish degeneration by U and by V;
1428 // only corresponding move is prohibited
1429// Standard_Boolean isDeg = surf->IsDegenerated ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ) );
1430 Standard_Integer isDeg = 0;
1431 gp_Pnt2d degP1, degP2;
1432 Standard_Real degT1, degT2;
1433 if ( surf->DegeneratedValues ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ),
1434 degP1, degP2, degT1, degT2 ) )
1435 isDeg = ( Abs ( degP1.X() - degP2.X() ) > Abs ( degP1.Y() - degP2.Y() ) ? 1 : 2 );
1436
1437 // abv 23 Feb 00: UKI60107-6 210: additional check for near-degenerated case
1438 //smh#15 PRO19800. Check if the surface is surface of revolution.
1439 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1440 if ( ! isDeg && ! vclosed ) {
1441 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1442 gp_Pnt2d p1 ( SUF, c2d1->Value(b1).Y() );
1443 gp_Pnt2d p2 ( SUL, c2d1->Value(b1).Y() );
1444 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1445 ! 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
1446 isDeg = 1;
1447 }
1448 if ( ! isDeg && ! uclosed ) {
1449 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1450 gp_Pnt2d p1 ( c2d1->Value(b1).X(), SVF );
1451 gp_Pnt2d p2 ( c2d1->Value(b1).X(), SVL );
1452 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1453 ! 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
1454 isDeg = 2;
1455 }
1456 }
1457
3163e9fd 1458 if ( isDeg )
1459 {
1460 if ( ! degstop )
1461 {
1462 stop = n2;
1463 degstop = Standard_True;
1464 }
1465
1466 if ( ! degn2 )
1467 {
1468 degn2 = n2;
1469 pdeg = p;
7fd59977 1470 }
3163e9fd 1471 else
1472 {
1473 if ( pdeg.SquareDistance(p) < Precision() * Precision() )
1474 {
1475 degn2 = n2;
1476 //if ( stop < n2 ) { stop = n2; degstop = Standard_True; }
1477 }
1478 else
1479 {
1480 Standard_Real ax1 = 0., bx1 = 0., ax2 = 0., bx2 = 0.;
1481 Handle(Geom2d_Curve) cx1, cx2;
1482 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1483 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ||
1484 ! sae.PCurve ( sbwd->Edge ( degn2 >1 ? degn2-1 : nb ), Face(), cx1, ax1, bx1, Standard_True ) ||
1485 ! sae.PCurve ( sbwd->Edge ( degn2 ), Face(), cx2, ax2, bx2, Standard_True ) )
1486 {
1487 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1488 continue;
1489 }
1490 gp_Pnt2d pd1 = cx1->Value ( bx1 );
1491 gp_Pnt2d pd2 = cx2->Value ( ax2 );
1492 gp_Pnt2d pn1 = c2d1->Value ( b1 );
1493 gp_Pnt2d pn2 = c2d2->Value ( a2 );
1494 gp_Vec2d x(0.,0.); // shift vector
1495 Standard_Real period;
1496 if ( uclosed ) { x.SetX ( 1. ); period = URange; }
1497 else { x.SetY ( 1. ); period = VRange; }
1498 Standard_Real rot1 = ( pn1.XY() - pd2.XY() ) ^ x.XY();
1499 Standard_Real rot2 = ( pd1.XY() - pn2.XY() ) ^ x.XY();
1500 Standard_Real scld = ( pd2.XY() - pd1.XY() ) * x.XY();
1501 Standard_Real scln = ( pn2.XY() - pn1.XY() ) * x.XY();
1502 if ( rot1 * rot2 < -::Precision::PConfusion() &&
1503 scld * scln < -::Precision::PConfusion() &&
1504 Abs ( scln ) > 0.1 * period && Abs ( scld ) > 0.1 * period &&
1505 rot1 * scld > ::Precision::PConfusion() &&
1506 rot2 * scln > ::Precision::PConfusion() )
1507 {
1508 // abv 02 Mar 00: trying more sophisticated analysis (ie_exhaust-A.stp #37520)
1509 Standard_Real sign = ( rot2 >0 ? 1. : -1. );
1510 Standard_Real deep1 = Min ( sign * ( pn2.XY() * x.XY() ),
1511 Min ( sign * ( pd1.XY() * x.XY() ),
1512 Min ( sign * ( c2d2->Value(b2 ).XY() * x.XY() ),
1513 Min ( sign * ( cx1->Value(ax1).XY() * x.XY() ),
1514 Min ( sign * ( c2d2->Value(0.5*(a2 +b2 )).XY() * x.XY() ),
1515 sign * ( cx1->Value(0.5*(ax1+bx1)).XY() * x.XY() ) ) ) ) ) );
1516 Standard_Real deep2 = Max ( sign * ( pn1.XY() * x.XY() ),
1517 Max ( sign * ( pd2.XY() * x.XY() ),
1518 Max ( sign * ( c2d1->Value(a1 ).XY() * x.XY() ),
1519 Max ( sign * ( cx2->Value(bx2).XY() * x.XY() ),
1520 Max ( sign * ( c2d1->Value(0.5*(a1 +b1 )).XY() * x.XY() ),
1521 sign * ( cx2->Value(0.5*(ax2+bx2)).XY() * x.XY() ) ) ) ) ) );
1522 Standard_Real deep = deep2 - deep1; // estimated current size of wire by x
1523 // pdn 30 Oct 00: trying correct period [0,period] (trj5_k1-tc-203.stp #4698)
1524 Standard_Real dx = ShapeAnalysis::AdjustToPeriod ( deep, ::Precision::PConfusion(), period+::Precision::PConfusion());
1525 x *= ( scld >0 ? -dx : dx );
1526 //x *= ( Abs(scld-scln) > 1.5 * period ? 2. : 1. ) *
1527 // ( scld >0 ? -period : period );
1528 gp_Trsf2d Shift;
1529 Shift.SetTranslation ( x );
1530 for ( Standard_Integer k=degn2; ; k++ )
1531 {
1532 if ( k > nb ) k = 1;
1533 if ( k == n2 ) break;
1534 TopoDS_Edge edge = sbwd->Edge ( k );
1535 if ( ! sae.PCurve ( edge, Face(), cx1, ax1, bx1, Standard_True ) ) continue;
1536 //cx1->Transform ( Shift );
1537 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1538 Handle(Geom2d_Curve) cx1new = Handle(Geom2d_Curve)::DownCast(cx1->Transformed(Shift));
1539 sbe.ReplacePCurve(edge,cx1new,Face());
1540 UpdateEdgeUVPoints ( edge, Face() );
1541 }
1542 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
0797d9d3 1543#ifdef OCCT_DEBUG
3163e9fd 1544 cout << "Info: ShapeFix_Wire::FixShifted(): bi - meridian case fixed" << endl;
7fd59977 1545#endif
3163e9fd 1546 continue;
1547 }
1548 //degn2 = n2; pdeg = p; // ie_exhaust-A.stp #37520
1549 }
7fd59977 1550 }
3163e9fd 1551/*
7fd59977 1552 // pdn to fix half sphere
1553 TopoDS_Vertex VE = sae.LastVertex ( E2 );
1554 gp_Pnt pe = BRep_Tool::Pnt ( VE );
1555 //pdn is second vertex on singular point ?
1556 if ( surf->IsDegenerated ( pe, Max ( Precision(), BRep_Tool::Tolerance(V) ) ) ) {
1557 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1558 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1559 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1560 continue;
1561 }
1562 gp_Pnt2d p2d1 = c2d1->Value ( b1 ), p2f = c2d2->Value ( a2 ), p2l = c2d2->Value ( b2 );
1563 Standard_Real pres2 = ::Precision::PConfusion();
1564 Standard_Real du = 0.,dv = 0.;
1565 //#79 rln 15.03.99 S4135: bmarkmdl.igs entity 633 (incorrectly oriented contour) check for gap
1566 if(uclosed&&(Abs(p2f.X()-p2l.X())<pres2)&&Abs(p2d1.X()-p2f.X())>GAS.UResolution(Precision())) {
1567 if((Abs(p2f.X()-SUF)<pres2)&&(p2f.Y()<p2l.Y()))
1568 du = URange;
1569 if((Abs(p2f.X()-SUL)<pres2)&&(p2f.Y()>p2l.Y()))
1570 du = -URange;
1571 }
1572 if(vclosed&&(Abs(p2f.Y()-p2l.Y())<pres2)&&Abs(p2d1.Y()-p2f.Y())>GAS.VResolution(Precision())) {
1573 if((Abs(p2f.Y()-SVF)<pres2)&&(p2f.X()>p2l.X()))
1574 dv = VRange;
1575 if((Abs(p2f.Y()-SVL)<pres2)&&(p2f.X()<p2l.X()))
1576 dv = -VRange;
1577 }
1578 if ( du ==0. && dv == 0. ) continue;
1579 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1580 gp_Trsf2d Shift;
1581 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1582 c2d2->Transform ( Shift );
1583 UpdateEdgeUVPoints ( E2, Face() );//rln 15.03.99 syntax correction :E1
1584 }
1585*/
1586//:abv 29.08.01: torCuts.sat: continue;
1587 }
1588
1589 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1590 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1591 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1592 continue;
1593 }
1594 gp_Pnt2d p2d1 = c2d1->Value ( b1 );
1595 gp_Pnt2d p2d2 = c2d2->Value ( a2 );
1596 box.Add ( p2d1 );
1597
1598 Standard_Real du=0., dv=0.;
1599 if ( uclosed && isDeg != 1 ) {
1600 Standard_Real dx = Abs ( p2d2.X() - p2d1.X() );
1601 if ( dx > URange - UTol )
1602 du = ShapeAnalysis::AdjustByPeriod ( p2d2.X(), p2d1.X(), URange );
1603 else if ( dx > UTol && stop == nb ) stop = n2; //:abv 29.08.01: torCuts2.stp
1604 }
1605 if ( vclosed && isDeg != 2 ) {
1606 Standard_Real dy = Abs ( p2d2.Y() - p2d1.Y() );
1607 if ( dy > VRange - VTol )
1608 dv = ShapeAnalysis::AdjustByPeriod ( p2d2.Y(), p2d1.Y(), VRange );
1609 else if ( dy > VTol && stop == nb ) stop = n2;
1610 }
1611 if ( du ==0. && dv == 0. ) continue;
1612
1613 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1614 gp_Trsf2d Shift;
1615 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1616 //c2d2->Transform ( Shift );
1617 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1618 Handle(Geom2d_Curve) c2d2new = Handle(Geom2d_Curve)::DownCast(c2d2->Transformed(Shift));
1619 sbe.ReplacePCurve(E2,c2d2new,Face());
1620 UpdateEdgeUVPoints ( E2, Face() );
1621 }
1622 if ( box.IsVoid() ) return Standard_False; //#3 smh 01.04.99. S4163: Overflow, when box is void.
1623
1624 Standard_Real umin, vmin, umax, vmax;
1625 box.Get ( umin, vmin, umax, vmax );
1626 if ( Abs ( umin + umax - SUF - SUL ) < URange &&
1627 Abs ( vmin + vmax - SVF - SVL ) < VRange &&
1628 ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
1629
1630 box.SetVoid();
1631 Standard_Integer n; // svv Jan11 2000 : porting on DEC
1632 for ( n=1; n <= nb; n++ ) {
1633 Standard_Real a, b;
1634 Handle(Geom2d_Curve) c2d;
1635 if ( ! sae.PCurve ( sbwd->Edge(n), Face(), c2d, a, b, Standard_True ) ) continue;
1636 box.Add ( c2d->Value ( a ) );
1637 box.Add ( c2d->Value ( 0.5 * ( a + b ) ) );
1638 }
1639 box.Get ( umin, vmin, umax, vmax );
1640
1641 Standard_Real du=0., dv=0.;
1642
1643 if ( uclosed ) {
1644 Standard_Real umid = 0.5 * ( umin + umax );
1645// du = ShapeAnalysis::AdjustToPeriod(umid, SUF, SUL);
1646 // PTV 26.06.2002 xloop torus-apple iges face mode
1647 du = ShapeAnalysis::AdjustByPeriod(umid, SUMid, URange);
1648 }
1649 if ( vclosed ) {
1650 Standard_Real vmid = 0.5 * ( vmin + vmax );
1651// dv = ShapeAnalysis::AdjustToPeriod(vmid, SVF, SVL);
1652 // PTV 26.06.2002 xloop torus-apple iges face mode
1653 dv = ShapeAnalysis::AdjustByPeriod(vmid, SVMid, VRange);
1654 }
1655
1656 if ( du ==0. && dv == 0. ) return Standard_True;
1657
1658 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1659
1660 gp_Trsf2d Shift;
1661 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1662
1663 for ( n=1; n <= sbwdOring->NbEdges(); n++ ) {
1664 Standard_Real a, b;
1665 Handle(Geom2d_Curve) c2d;
1666 TopoDS_Edge ed = sbwdOring->Edge(n);
1667 if ( ! sae.PCurve ( ed, Face(), c2d, a, b, Standard_True ) ) continue;
1668 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1669 Handle(Geom2d_Curve) c2d2 = Handle(Geom2d_Curve)::DownCast(c2d->Transformed(Shift));
1670 sbe.ReplacePCurve(ed,c2d2,Face());
1671 UpdateEdgeUVPoints ( ed, Face() );
1672 }
1673 return Standard_True;
1674}
1675
1676//=======================================================================
1677//function : FixDegenerated
1678//purpose :
1679//=======================================================================
1680
1681Standard_Boolean ShapeFix_Wire::FixDegenerated (const Standard_Integer num)
1682{
1683 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1684 if ( ! IsReady() ) return Standard_False;
1685
1686 // analysis
1687 gp_Pnt2d p2d1, p2d2;
1688 myAnalyzer->CheckDegenerated ( num, p2d1, p2d2 );
1689 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL1 ) ) {
1690 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1691 }
1692 //: abv 29.08.01: torHalf2.sat: if edge was encoded as degenerated but
1693 // has no pcurve and no singularity is found at that point, remove it
1694 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL2 ) ) {
1695 WireData()->Remove ( num );
1696 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1697 return Standard_True;
1698 }
1699 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1700
1701 // action: create degenerated edge and insert it (or replace)
1702
1703 gp_Vec2d vect2d ( p2d1, p2d2 );
1704 gp_Dir2d dir2d ( vect2d );
1705 Handle(Geom2d_Line) line2d = new Geom2d_Line ( p2d1, dir2d );
1706
1707 TopoDS_Edge degEdge;
1708 BRep_Builder B;
1709 B.MakeEdge ( degEdge );
1710 B.Degenerated ( degEdge, Standard_True );
1711 B.UpdateEdge ( degEdge, line2d, Face(), ::Precision::Confusion() );
1712 B.Range ( degEdge, Face(), 0., vect2d.Magnitude() );
1713
1714 Handle(ShapeExtend_WireData) sbwd = WireData();
1715 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1716 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1717
1718 Standard_Boolean lack = myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 );
1719 Standard_Integer n3 = ( lack ? n2 : ( n2 < sbwd->NbEdges() ? n2+1 : 1 ) );
1720
1721 ShapeAnalysis_Edge sae;
1722 TopoDS_Vertex V1 = sae.LastVertex ( sbwd->Edge ( n1 ) );
1723 TopoDS_Vertex V2 = sae.FirstVertex ( sbwd->Edge ( n3 ) );
1724
1725 V1.Orientation(TopAbs_FORWARD);
1726 V2.Orientation(TopAbs_REVERSED);
1727 B.Add(degEdge,V1);
1728 B.Add(degEdge,V2);
1729 degEdge.Orientation(TopAbs_FORWARD);
1730
1731 if ( lack ) {
1732 sbwd->Add ( degEdge, n2 );
1733 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1734 }
1735 else {
1736 sbwd->Set ( degEdge, n2 );
1737 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1738 }
999d2599
D
1739
1740// commented to avoid extra messages
1741// SendWarning ( degEdge, Message_Msg ( "FixWire.FixDegenerated.MSG0" ) );// Degenerated edge(s) detected
1742
7fd59977 1743 return Standard_True;
1744}
1745
1746//=======================================================================
1747//function : FixSelfIntersectingEdge
1748//purpose : Tests edge for self-intersection and updates tolerance of vertex
1749// if intersection is found
1750// Returns True if tolerance was increased
1751//=======================================================================
1752
1753// Create edge on basis of E with new pcurve and call FixSP
1754// Return resulting tolerance and modified pcurve
1755static Standard_Boolean TryNewPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
1756 Handle(Geom2d_Curve) &c2d,
1757 Standard_Real &first,
1758 Standard_Real &last,
1759 Standard_Real &tol)
1760{
1761 Standard_Real f, l;
1762 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1763 if ( crv.IsNull() ) return Standard_False;
1764
1765 // make temp edge and compute tolerance
1766 BRepBuilderAPI_MakeEdge mkedge ( crv, f, l );
1767
1768 ShapeBuild_Edge SBE; //skl 17.07.2001
1769 SBE.SetRange3d(mkedge,f,l); //skl 17.07.2001
1770
1771 if ( ! mkedge.IsDone() ) return Standard_False;
1772
1773 TopoDS_Edge edge = mkedge;
1774 BRep_Builder B;
1775 B.UpdateEdge ( edge, c2d, face, 0. );
1776 B.Range ( edge, face, first, last );
1777 B.SameRange ( edge, Standard_False );
1778// no call to BRepLib: B.SameParameter ( edge, Standard_False );
1779
1780 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
98a43400 1781 sfe->FixSameParameter ( edge, face );
7fd59977 1782 c2d = BRep_Tool::CurveOnSurface ( edge, face, first, last );
1783 tol = BRep_Tool::Tolerance ( edge );
1784 return Standard_True;
1785}
1786
1787//:k3 abv 24 Dec 98: BUC50070 #26682 and #30087:
1788// Try to cut out the loop on the pcurve and make new pcurve by concatenating
1789// the parts.
1790// If result is not SameParameter with prec, does nothing and returns False
1791// Warning: resulting pcurve will be C0
1792
1793//=======================================================================
1794//function : howMuchPCurves
1795//purpose : OCC901
1796//=======================================================================
1797static Standard_Integer howMuchPCurves (const TopoDS_Edge &E)
1798{
1799 Standard_Integer count = 0;
1800 BRep_ListIteratorOfListOfCurveRepresentation itcr
1801 ((*((Handle(BRep_TEdge)*)&E.TShape()))->ChangeCurves());
1802
1803 while (itcr.More()) {
1804 const Handle(BRep_CurveRepresentation)& cr = itcr.Value();
1805 if ( cr->IsCurveOnSurface() )
1806 count++;
1807 itcr.Next();
1808 }
1809
1810 return count;
1811}
1812
1813
1814//=======================================================================
1815//function : RemoveLoop
1816//purpose :
1817//=======================================================================
1818static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
1819 const IntRes2d_IntersectionPoint &IP,
1820 const Standard_Real tolfact,
1821 const Standard_Real prec,
1822 const Standard_Boolean RemoveLoop3d)
1823{
1824 Standard_Boolean loopRemoved3d;
1825 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
1826
1827 Standard_Real f, l;
1828 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1829
1830 Standard_Real t1 = IP.ParamOnFirst();
1831 Standard_Real t2 = IP.ParamOnSecond();
1832 if ( t1 > t2 ) { Standard_Real t = t1; t1 = t2; t2 = t; }
1833
1834 ShapeAnalysis_Edge sae;
1835 Standard_Real a, b;
1836 Handle(Geom2d_Curve) c2d;
1837 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
1838 return Standard_False;
1839
0797d9d3 1840#ifdef OCCT_DEBUG
7fd59977 1841 cout << "Cut Loop: params (" << t1 << ", " << t2;
1842#endif
1843 GeomAdaptor_Curve GAC ( crv, f, l );
1844 Standard_Real dt = tolfact * GAC.Resolution(prec);
1845 t1 -= dt; //1e-3;//::Precision::PConfusion();
1846 t2 += dt; //1e-3;//::Precision::PConfusion();
0797d9d3 1847#ifdef OCCT_DEBUG
7fd59977 1848 cout << ") -> (" << t1 << ", " << t2 << ")" << endl;
1849#endif
1850
1851 if ( t1 <= a || t2 >= b ) { // should not be so, but to be sure ..
1852 return Standard_False;
1853 }
1854
1855 // direct construction causes error on osf system.
1856 gp_Pnt p(0,0,0);
1857 gp_Dir d(0,0,1);
1858 gp_Ax3 ax(p, d);
1859 gp_Pln Pln (ax);
1860
1861 // PTV OCC884
1862 Handle(Geom_Plane) aPlaneSurf = Handle(Geom_Plane)::DownCast( BRep_Tool::Surface(face) );
1863 Handle(Geom_Curve) pcurve3d = crv;
1864 if ( !aPlaneSurf.IsNull() ) {
1865 Pln = aPlaneSurf->Pln();
1866 }
1867 else
1868 pcurve3d = GeomAPI::To3d ( c2d, Pln );
1869
1870 // first segment
1871 //Handle(Geom_Curve) pcurve3d = GeomAPI::To3d ( c2d, Pln );
1872 Handle(Geom_TrimmedCurve) trim = new Geom_TrimmedCurve (pcurve3d, a, t1);
1873 GeomConvert_CompCurveToBSplineCurve connect ( trim );
1874
1875 // null-length segment patch instead of loop
1876 TColgp_Array1OfPnt Poles(1,2);
1877 TColStd_Array1OfReal Knots(1,2);
1878 TColStd_Array1OfInteger Mults(1,2);
1879
1880 Poles.SetValue(1,trim->Value(t1));
1881 Knots.SetValue(1,t1);
1882 Mults.SetValue(1,2);
1883
1884 trim = new Geom_TrimmedCurve (pcurve3d, t2, b);
1885 Poles.SetValue(2,trim->Value(t2));
1886 Knots.SetValue(2,t2);
1887 Mults.SetValue(2,2);
1888
1889 Handle(Geom_BSplineCurve) patch = new Geom_BSplineCurve ( Poles, Knots, Mults, 1 );
1890 if ( ! connect.Add (patch, ::Precision::PConfusion(), Standard_True, Standard_False) )
1891 return Standard_False;
1892
1893 // last segment
1894 if ( ! connect.Add (trim, ::Precision::PConfusion(), Standard_True, Standard_False) )
1895 return Standard_False;
1896 // PTV OCC884
1897 // keep created 3d curve
1898 Handle(Geom_Curve) aNew3dCrv = connect.BSplineCurve();
1899
1900
1901 Handle(Geom2d_Curve) bs = GeomAPI::To2d ( aNew3dCrv, Pln );
1902 if ( bs.IsNull() ) return Standard_False;
1903
1904 // make temp edge and compute tolerance
1905 BRep_Builder B;
1906
1907 if(!RemoveLoop3d) { // old variant (not remove loop 3d)
1908 Standard_Real newtol=0;
1909 // OCC901
1910 Standard_Integer nbC2d = howMuchPCurves( E );
1911 if ( nbC2d <= 1 && !aPlaneSurf.IsNull() )
1912 B.UpdateEdge ( E, bs, face, 0 );
1913 else
1914 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1915
1916 Standard_Real tol = BRep_Tool::Tolerance ( E );
0797d9d3 1917#ifdef OCCT_DEBUG
7fd59977 1918 cout << "Cut Loop: tol orig " << tol << ", prec " << prec << ", new tol " << newtol << endl;
1919#endif
1920 if ( newtol > Max ( prec, tol ) ) return Standard_False;
1921 //:s2 bs = BRep_Tool::CurveOnSurface ( edge, face, a, b );
1922 if ( Abs ( a - f ) > ::Precision::PConfusion() || // smth strange, cancel
1923 Abs ( b - l ) > ::Precision::PConfusion() ) return Standard_False;
1924 // PTV OCC884
1925 if ( !aPlaneSurf.IsNull() ) {
1926 B.UpdateEdge ( E, aNew3dCrv, Max (newtol, tol) );
1927 // OCC901
1928 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1929 }
1930 B.UpdateEdge ( E, bs, face, newtol );
1931 B.UpdateVertex ( sae.FirstVertex ( E ), newtol );
1932 B.UpdateVertex ( sae.LastVertex ( E ), newtol );
1933 return Standard_True;
1934 }
1935
1936 //:q1
1937 TopLoc_Location L;
1938 Handle(Geom_Surface) S = BRep_Tool::Surface(face, L);
1939 Handle(Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
1940 Handle(GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
1941
1942 Adaptor3d_CurveOnSurface ACS(AC,AS);
1943 gp_Pnt P1(ACS.Value(t1));
1944 gp_Pnt P2(ACS.Value(t2));
1945 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
1946
1947 ShapeAnalysis_TransferParametersProj SFTP(E,face);
1948 Handle(TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
1949 Seq2d->Append(t1);
1950 Seq2d->Append(t2);
1951 Seq2d->Append((t1+t2)/2);
c04c30b3 1952 Handle(TColStd_HSequenceOfReal) Seq3d = SFTP.Perform(Seq2d,Standard_False);
7fd59977 1953
1954 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
1955 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
1956 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
1957 Standard_Real ftrim,ltrim;
1958 if(dist3>Max(dist1,dist2)) {
1959 loopRemoved3d = Standard_False;
1960 }
1961 else {
1962 loopRemoved3d = Standard_True;
1963 }
1964
1965 Handle(Geom_Curve) bs1;
1966
1967 if (!loopRemoved3d) {
1968 // create new 3d curve
1969 ftrim = Seq3d->Value(1);
1970 ltrim = Seq3d->Value(2);
1971 ftrim-=dt;
1972 ltrim+=dt;
1973 Handle(Geom_TrimmedCurve) trim1 = new Geom_TrimmedCurve (crv, f, ftrim);
1974 GeomConvert_CompCurveToBSplineCurve connect1 ( trim1 );
1975 TColgp_Array1OfPnt Poles1(1,2);
1976 TColStd_Array1OfReal Knots1(1,2);
1977 TColStd_Array1OfInteger Mults1(1,2);
1978
1979 Poles1.SetValue(1,trim1->Value(ftrim));
1980 Knots1.SetValue(1,ftrim);
1981 Mults1.SetValue(1,2);
1982
1983 trim1 = new Geom_TrimmedCurve (crv, ltrim, l);
1984 Poles1.SetValue(2,trim1->Value(ltrim));
1985 Knots1.SetValue(2,ltrim);
1986 Mults1.SetValue(2,2);
1987
1988 // create b-spline curve
1989 Handle(Geom_BSplineCurve) patch1 = new Geom_BSplineCurve ( Poles1, Knots1, Mults1, 1 );
1990
1991 if ( ! connect1.Add (patch1, ::Precision::PConfusion(), Standard_True, Standard_False) )
1992 return Standard_False;
1993
1994 // last segment
1995 if ( ! connect1.Add (trim1, ::Precision::PConfusion(), Standard_True, Standard_False) )
1996 return Standard_False;
1997
1998 bs1 = connect1.BSplineCurve();
1999
2000 if ( bs1.IsNull() )
2001 return Standard_False;
2002 }
2003// Standard_Real oldtol = BRep_Tool::Tolerance ( E );
2004
2005 if (!loopRemoved3d)
2006 B.UpdateEdge ( E, bs1, L, 0. );
2007 B.UpdateEdge ( E, bs, face, 0. );
2008 B.Range ( E, face, f, l );
2009 B.SameRange ( E, Standard_False );
2010
2011 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
2012 sfe->FixSameParameter ( E );
2013
2014 return Standard_True;
2015}
2016
2017//=======================================================================
2018//function : RemoveLoop
2019//purpose :
2020//=======================================================================
2021static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
2022 const IntRes2d_IntersectionPoint &IP2d,
2023 TopoDS_Edge &E1,
2024 TopoDS_Edge &E2)
2025{
0797d9d3 2026#ifdef OCCT_DEBUG
7fd59977 2027 cout<<"Info: ShapeFix_Wire::FixSelfIntersection : Try insert vertex"<<endl;
2028#endif
2029
2030 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
2031
2032 Standard_Real f, l;
2033 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
2034
2035 Standard_Real t1 = IP2d.ParamOnFirst();
2036 Standard_Real t2 = IP2d.ParamOnSecond();
2037
2038 if ( t1 > t2 )
2039 {
2040 Standard_Real t = t1; t1 = t2; t2 = t;
2041 }
2042
2043 ShapeAnalysis_Edge sae;
2044
2045 // define vertexes Vfirst , Vlast, Vmid
2046 TopoDS_Vertex Vfirst,Vlast,Vmid;
2047 // initialize Vfirst and Vlast
2048 Vfirst = sae.FirstVertex(E);
2049 Vlast = sae.LastVertex(E);
2050
2051 // find a 2d curve and parameters from edge E
2052 Standard_Real a, b;
2053 Handle (Geom2d_Curve) c2d;
2054 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
2055 return Standard_False;
2056
2057 // first segment for 2d curve
2058 Handle(Geom2d_TrimmedCurve) trim1;
2059 if( (t1-a)>Precision::PConfusion() )
2060 trim1 = new Geom2d_TrimmedCurve (c2d, a, t1);
2061 // second segment for 2d curve
2062 Handle(Geom2d_TrimmedCurve) trim2 = new Geom2d_TrimmedCurve (c2d, t2, b);
2063
2064// if ( trim1.IsNull() || trim2.IsNull() )
2065 if(trim2.IsNull())
2066 return Standard_False;
2067
2068 TopLoc_Location L;
2069 Handle (Geom_Surface) S = BRep_Tool::Surface(face, L);
2070 Handle (Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
2071 Handle (GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
2072
2073 Adaptor3d_CurveOnSurface ACS(AC,AS);
2074 gp_Pnt P1(ACS.Value(t1));
2075 gp_Pnt P2(ACS.Value(t2));
2076 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
2077
2078 // transfer parameters from pcurve to 3d curve
2079 ShapeAnalysis_TransferParametersProj SFTP(E,face);
2080 Handle (TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
2081 Seq2d->Append(t1);
2082 Seq2d->Append(t2);
2083 Seq2d->Append((t1+t2)/2);
c04c30b3 2084 Handle (TColStd_HSequenceOfReal) Seq3d = SFTP.Perform(Seq2d,Standard_False);
7fd59977 2085
2086 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
2087 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
2088 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
2089 Standard_Real ftrim,ltrim;
2090 if ( dist3 > Max(dist1, dist2)) { // is loop in 3d
2091 ftrim = Seq3d->Value(1);
2092 ltrim = Seq3d->Value(2);
2093 }
2094 else { // not loop in 3d
2095 ftrim = Seq3d->Value(3);
2096 ltrim = Seq3d->Value(3);
2097 }
2098
2099// ftrim = Seq3d->Value(1);
2100// ltrim = Seq3d->Value(2);
2101
2102 // trim for 3d curve 'crv' with parameters from 'f' to 'l'
2103 Handle(Geom_TrimmedCurve) trim3;
2104 if(!trim1.IsNull())
2105 trim3 = new Geom_TrimmedCurve (crv, f, ftrim);
2106 // second segment for 3d curve
2107 Handle(Geom_TrimmedCurve) trim4 = new Geom_TrimmedCurve (crv, ltrim, l);
2108
2109// if ( trim3.IsNull() || trim4.IsNull() )
2110 if(trim4.IsNull())
2111 return Standard_False;
2112
2113 // create a point for middle vertex
2114 gp_Pnt pnt1 = crv->Value(ftrim);
2115 gp_Pnt pnt2 = crv->Value(ltrim);
2116 gp_Pnt Pmid((pnt1.X()+pnt2.X())/2,(pnt1.Y()+pnt2.Y())/2,(pnt1.Z()+pnt2.Z())/2);
2117
2118 BRep_Builder B;
2119
2120 // create new copies for E1 and E2
2121 if(!trim1.IsNull())
2122 E1=TopoDS::Edge(E.EmptyCopied());
2123 E2=TopoDS::Edge(E.EmptyCopied());
2124
2125 // initialize middle vertex Vmid
2126 if(trim1.IsNull())
2127 B.MakeVertex(Vmid, pnt2, 0.);
2128 else
2129 B.MakeVertex(Vmid, Pmid, 0.);
2130
2131 ShapeBuild_Edge sbe;
2132
2133 // replace verteces for new edges E1 and E2
2134 if (E.Orientation()== TopAbs_FORWARD)
2135 {
2136 if(!E1.IsNull())
2137 E1=sbe.CopyReplaceVertices(E1,Vfirst,Vmid);
2138 E2=sbe.CopyReplaceVertices(E2,Vmid, Vlast);
2139 }
2140 else
2141 {
2142 if(!E1.IsNull())
2143 E1=sbe.CopyReplaceVertices(E1,Vmid, Vlast);
2144 E2=sbe.CopyReplaceVertices(E2,Vfirst, Vmid);
2145 }
2146
2147 // Update edges by 2d and 3d curves
2148 Handle(ShapeFix_Edge) mySfe = new ShapeFix_Edge;
2149 if(!E1.IsNull()) {
2150 B.UpdateEdge(E1, trim1, face, 0.);
2151 B.UpdateEdge(E1, trim3, 0.);
2152 B.Range(E1, f, ftrim);
2153 B.SameRange(E1,Standard_False);
2154// B.SameParameter(E1,Standard_False);
2155 mySfe->FixSameParameter(E1);
2156 mySfe->FixVertexTolerance(E1);
2157 }
2158 B.UpdateEdge(E2, trim2, face, 0.);
2159 B.UpdateEdge(E2, trim4, 0.);
2160 B.Range ( E2,ltrim,l );
2161 B.SameRange(E2, Standard_False );
2162// B.SameParameter(E2, Standard_False);
2163 mySfe->FixSameParameter(E2);
2164 mySfe->FixVertexTolerance(E2);
2165
2166 return Standard_True;
2167}
2168
2169
2170//=======================================================================
2171//function : FixSelfIntersectingEdge
2172//purpose :
2173//=======================================================================
2174
2175Standard_Boolean ShapeFix_Wire::FixSelfIntersectingEdge (const Standard_Integer num)
2176{
2177 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2178 if ( ! IsReady() ) return Standard_False;
2179
2180 // analysis
2181 IntRes2d_SequenceOfIntersectionPoint points2d;
2182 TColgp_SequenceOfPnt points3d;
2183 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2184 if (theAdvAnalyzer.IsNull()) return Standard_False;
2185 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, points2d, points3d );
2186 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2187 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2188 }
2189 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2190
2191 // action: increase tolerance of vertex
2192
2193 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
2194
2195 ShapeAnalysis_Edge sae;
2196 TopoDS_Vertex V1 = sae.FirstVertex ( E );
2197 TopoDS_Vertex V2 = sae.LastVertex ( E );
2198 Standard_Real tol1 = BRep_Tool::Tolerance ( V1 );
2199 Standard_Real tol2 = BRep_Tool::Tolerance ( V2 );
2200 gp_Pnt pnt1 = BRep_Tool::Pnt ( V1 );
2201 gp_Pnt pnt2 = BRep_Tool::Pnt ( V2 );
2202
2203 // cycle is to verify fix in case of RemoveLoop
2204 Standard_Real tolfact = 0.1; // factor for shifting by parameter in RemoveLoop
1d47d8d0 2205 Standard_Real f2d = 0., l2d = 0.;
7fd59977 2206 Handle(Geom2d_Curve) c2d;
2207 Standard_Real newtol=0.; // = Precision();
2208
2209 if (myRemoveLoopMode<1) {
2210 for ( Standard_Integer iter=0; iter < 30; iter++ ) {
2211 Standard_Boolean loopRemoved = Standard_False;;
2212 Standard_Real prevFirst = 0 , prevLast = 0;
2213 for ( Standard_Integer i=1; i<=points2d.Length(); i++ ) {
2214 gp_Pnt pint = points3d.Value(i);
2215 Standard_Real dist21 = pnt1.SquareDistance ( pint );
2216 Standard_Real dist22 = pnt2.SquareDistance ( pint );
2217 if ( dist21 < tol1 * tol1 || dist22 < tol2 * tol2 ) continue;
2218 newtol = 1.001 * Sqrt ( Min ( dist21, dist22 ) ); //:f8
2219
2220 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2221 if ( myGeomMode ) {
2222 if ( c2d.IsNull() )
2223 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2224 Standard_Real firstpar = points2d.Value(i).ParamOnFirst();
2225 Standard_Real lastpar = points2d.Value(i).ParamOnSecond();
2226 if(firstpar > prevFirst && lastpar < prevLast) continue;
2227 if ( RemoveLoop (E, Face(), points2d.Value(i), tolfact,
2228 Min( MaxTolerance(), Max(newtol,Precision()) ),
2229 myRemoveLoopMode==0 ) ) {
2230 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2231 loopRemoved = Standard_True;
2232 prevFirst = firstpar;
2233 prevLast = lastpar;
2234 continue; // repeat of fix on that edge required (to be done by caller)
2235 }
2236 }
2237 if ( newtol < MaxTolerance() ) {
2238 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2239 BRep_Builder B;
2240 if ( dist21 < dist22 ) B.UpdateVertex ( V1, tol1 = newtol );
2241 else B.UpdateVertex ( V2, tol2 = newtol );
2242 }
2243 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2244 }
2245
2246 // after RemoveLoop, check that self-intersection disappeared
2247 if ( loopRemoved ) {
2248 IntRes2d_SequenceOfIntersectionPoint pnts2d;
2249 TColgp_SequenceOfPnt pnts3d;
2250 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, pnts2d, pnts3d );
2251 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) break;
2252 //points3d.Append(pnts3d);
2253 //points2d.Append(pnts2d);
2254 points3d = pnts3d;
2255 points2d = pnts2d;
2256 BRep_Builder B;
2257 B.UpdateEdge ( E, c2d, Face(), 0. );
2258 B.Range ( E, Face(), f2d, l2d );
2259 //newtol+=Precision();
2260 }
2261 else {
2262 break;
2263 }
2264 }
2265 }
2266
2267 //===============================================
2268 // RemoveLoopMode = 1 , insert vertex
2269 //===============================================
2270 if (myRemoveLoopMode == 1) {
2271 // after fixing will be nb+1 edges
2272 Standard_Boolean loopRemoved;
2273 // create a sequence of resulting edges
2274 Handle (TopTools_HSequenceOfShape) TTSS = new TopTools_HSequenceOfShape;
2275 TopoDS_Edge E2;
2276
2277 loopRemoved = Standard_False;
2278 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2279 if ( myGeomMode ) {
2280 if ( c2d.IsNull() )
2281 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2282 TopoDS_Edge E1;
2283 if ( RemoveLoop (E, Face(), points2d.Value(1),E1,E2) ) {
2284 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2285 loopRemoved = Standard_True;
2286 if(!E1.IsNull()) {
2287 TTSS->Append(E1);
2288 newtol = Max(BRep_Tool::Tolerance(E1),BRep_Tool::Tolerance(E2));
2289 }
2290 else
2291 newtol = BRep_Tool::Tolerance(E2);
2292 }
2293 }
2294
2295 TTSS->Append(E2);
2296
2297 if ( newtol > MaxTolerance() )
2298 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2299
2300 ShapeExtend_WireData sewd;
2301 for (Standard_Integer i=1 ; i <= TTSS->Length(); i++) {
2302 sewd.Add(TopoDS::Edge(TTSS->Value(i)));
2303 }
2304 if (! Context().IsNull()) {
2305 Context()->Replace ( E, sewd.Wire() );
2306 UpdateWire();
2307 }
2308 else {
2309 WireData()->Remove(num >0 ? num : NbEdges());
2310 WireData()->Add(sewd.Wire(), num >0 ? num : NbEdges());
2311 }
2312 if (loopRemoved)
2313 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
2314
2315 }
2316
2317 if ( LastFixStatus ( ShapeExtend_DONE ) && ! myShape.IsNull() ) {
999d2599 2318 SendWarning ( E, Message_Msg ( "FixAdvWire.FixIntersection.MSG5" ) );// Edge was self-intersecting, corrected
7fd59977 2319 }
2320
2321 return LastFixStatus ( ShapeExtend_DONE );
2322}
2323
2324
2325//=======================================================================
2326//function : ComputeLocalDeviation
2327//purpose : auxilary
2328//=======================================================================
2329static Standard_Real ComputeLocalDeviation (const TopoDS_Edge &edge,
2330 const gp_Pnt &pint,const gp_Pnt &pnt,
2331 Standard_Real f, Standard_Real l,
2332 const TopoDS_Face &face )
2333{
2334 ShapeAnalysis_Edge sae;
2335 Handle(Geom_Curve) c3d;
2336 Standard_Real a, b;
2337 if ( ! sae.Curve3d ( edge, c3d, a, b, Standard_False ) ) return RealLast();
2338
2339 gp_Lin line ( pint, gp_Vec ( pint, pnt ) );
2340
2341 Handle(Geom2d_Curve) Crv;
2342 Standard_Real fp,lp;
2343 if ( sae.PCurve(edge,face,Crv,fp,lp,Standard_False) ) {
2344 if(Crv->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
2345 Handle(Geom2d_TrimmedCurve) tc = Handle(Geom2d_TrimmedCurve)::DownCast(Crv);
2346 if(tc->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Line))) {
2347 f = a + (f-fp)*(b-a)/(lp-fp);
2348 l = a + (l-fp)*(b-a)/(lp-fp);
2349 }
2350 }
2351 }
2352
2353 const Standard_Integer NSEG = 10;
2354 Standard_Real step = ( l - f ) / NSEG;
2355 Standard_Real dev = 0.;
2356 for ( Standard_Integer i=1; i < NSEG; i++ ) {
2357 gp_Pnt p = c3d->Value ( f + i * step );
2358 Standard_Real d = line.Distance ( p );
2359 if ( dev < d ) dev = d;
2360 }
2361 return dev;
2362}
2363
2364//=======================================================================
2365//function : FixIntersectingEdges
2366//purpose :
2367//=======================================================================
2368
2369Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num)
2370{
2371 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2372 if ( ! IsReady() || NbEdges() <2 ) return Standard_False;
2373
2374 // analysis
2375 IntRes2d_SequenceOfIntersectionPoint points2d;
2376 TColgp_SequenceOfPnt points3d;
2377 TColStd_SequenceOfReal errors;
2378 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2379 if (theAdvAnalyzer.IsNull()) return Standard_False;
2380 theAdvAnalyzer->CheckIntersectingEdges ( num, points2d, points3d, errors );
2381 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2382 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2383 }
2384 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2385
2386 //rln 03/02/98: CSR#BUC50004 entity 56 (to avoid later inserting lacking edge)
2387 //:l0 Standard_Boolean isLacking = myAnalyzer->CheckLacking ( num );
2388
2389 // action: increase tolerance of vertex
2390
2391 Handle(ShapeExtend_WireData) sbwd = WireData();
2392 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2393 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2394 TopoDS_Edge E1 = sbwd->Edge(n1);
2395 TopoDS_Edge E2 = sbwd->Edge(n2);
2396 Standard_Boolean isForward1 = ( E1.Orientation() == TopAbs_FORWARD );
2397 Standard_Boolean isForward2 = ( E2.Orientation() == TopAbs_FORWARD );
2398 Standard_Real a1, b1, a2, b2;
2399 BRep_Tool::Range ( E1, Face(), a1, b1 );
2400 BRep_Tool::Range ( E2, Face(), a2, b2 );
ed5ca017 2401
7fd59977 2402 ShapeAnalysis_Edge sae;
2403 TopoDS_Vertex Vp = sae.FirstVertex ( E1 );
2404 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2405 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2406 TopoDS_Vertex Vn = sae.LastVertex ( E2 );
2407
2408 Standard_Real tol = BRep_Tool::Tolerance ( V1 );
2409 gp_Pnt pnt = BRep_Tool::Pnt ( V1 );
2410
2411 Standard_Real prevRange1 = RealLast(), prevRange2 = RealLast();
2412 Standard_Boolean cutEdge1 = Standard_False, cutEdge2 = Standard_False;
2413 Standard_Boolean IsCutLine = Standard_False;
2414
2415 BRep_Builder B;
ed5ca017 2416
7fd59977 2417 Standard_Integer nb = points3d.Length();
2418 for ( Standard_Integer i=1; i <= nb; i++ ) {
2419 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2420 Standard_Real param1 = ( num ==1 ? IP.ParamOnSecond() : IP.ParamOnFirst() );
2421 Standard_Real param2 = ( num ==1 ? IP.ParamOnFirst() : IP.ParamOnSecond() );
2422
2423 Standard_Real newRange1 = Abs ( ( isForward1 ? a1 : b1 ) - param1 );
2424 Standard_Real newRange2 = Abs ( ( isForward2 ? b2 : a2 ) - param2 );
2425 if ( newRange1 > prevRange1 && newRange2 > prevRange2 ) continue;
2426
2427 gp_Pnt pint = points3d.Value(i);
2428 Standard_Real rad = errors.Value(i);
2429 Standard_Real newtol = 1.0001 * ( pnt.Distance ( pint ) + rad );
2430
3163e9fd 2431 //GeomAdaptor_Surface& Ads = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface();
7fd59977 2432
2433 //:r8 abv 12 Apr 99: try increasing tolerance of edge
3163e9fd 2434
2435 Standard_Boolean locMayEdit = myTopoMode;
2436 // Always try to modify the tolerance firstly as a better solution
ed5ca017 2437 if ( /*! myTopoMode &&*/ newtol > tol )
2438 {
7fd59977 2439 Standard_Real te1 = rad + ComputeLocalDeviation (E1, pint, pnt,
3163e9fd 2440 param1, ( isForward1 ? b1 : a1 ), Face() );
7fd59977 2441 Standard_Real te2 = rad + ComputeLocalDeviation (E2, pint, pnt,
3163e9fd 2442 ( isForward2 ? a2 : b2 ), param2, Face() );
7fd59977 2443 Standard_Real maxte = Max ( te1, te2 );
ed5ca017 2444 if ( maxte < MaxTolerance() && maxte < newtol )
2445 {
2446 if ( BRep_Tool::Tolerance(E1) < te1 || BRep_Tool::Tolerance(E2) < te2 )
2447 {
3163e9fd 2448#ifdef OCCT_DEBUG
2449 cout << "Warning: ShapeFix_Wire::FixIE: edges tolerance increased: (" <<
2450 te1 << ", " << te2 << ") / " << newtol << endl;
2451#endif
ed5ca017 2452
2453 // Make copy of edges.
2454 if (!Context().IsNull())
2455 {
2456 // Intersection point of two base edges.
2457 ShapeBuild_Edge aSBE;
2458 TopoDS_Vertex VV1 = Context()->CopyVertex(V1);
2459
2460 TopoDS_Vertex VVp = Vp;
2461 TopoDS_Vertex VVn = Vn;
2462 if (Vp.IsSame(Vn))
2463 {
2464 // Should modify only one vertex.
2465 VVp = Context()->CopyVertex(Vp);
2466 VVn = VVp;
2467 }
2468 else
2469 {
2470 VVp = Context()->CopyVertex(Vp);
2471 VVn = Context()->CopyVertex(Vn);
2472 }
2473
2474 TopoDS_Edge EE1 = aSBE.CopyReplaceVertices(E1, VVp, VV1);
2475 TopoDS_Edge EE2 = aSBE.CopyReplaceVertices(E2, VV1, VVn);
2476
2477 Context()->Replace(E1, EE1);
2478 Context()->Replace(E2, EE2);
2479
2480 UpdateWire();
2481 E1 = sbwd->Edge(n1);
2482 E2 = sbwd->Edge(n2);
2483 Vp = sae.FirstVertex ( E1 );
2484 V1 = sae.LastVertex ( E1 );
2485 V2 = sae.FirstVertex ( E2 );
2486 Vn = sae.LastVertex ( E2 );
2487 }
2488
3163e9fd 2489 B.UpdateEdge ( E1, 1.000001 * te1 );
2490 B.UpdateVertex ( sae.FirstVertex ( E1 ), 1.000001 * te1 );
2491 B.UpdateVertex ( sae.LastVertex ( E1 ), 1.000001 * te1 );
2492 B.UpdateEdge ( E2, 1.000001 * te2 );
2493 B.UpdateVertex ( sae.FirstVertex ( E2 ), 1.000001 * te2 );
2494 B.UpdateVertex ( sae.LastVertex ( E2 ), 1.000001 * te2 );
2495
2496 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
2497 locMayEdit = Standard_False;
2498 }
2499 newtol = 1.000001 * maxte;
7fd59977 2500 }
2501 }
2502
3163e9fd 2503 if ( locMayEdit || newtol <= MaxTolerance() )
2504 {
7fd59977 2505 prevRange1 = newRange1;
2506 prevRange2 = newRange2;
3163e9fd 2507 if ( locMayEdit )
2508 {
2509 newtol = 1.0001 * ( pnt.Distance ( pint ) + rad );
2510 //:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586: do not cut edges because of influence on adjacent faces
7fd59977 2511 ShapeFix_SplitTool aTool;
3163e9fd 2512
2513 if ( ! aTool.CutEdge ( E1, ( isForward1 ? a1 : b1 ), param1, Face(), IsCutLine ) ) {
2514 if ( V1.IsSame ( Vp ) )
2515 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
2516 else locMayEdit = Standard_False;
2517 }
2518 else cutEdge1 = Standard_True; //:h4
2519
2520 if ( ! aTool.CutEdge ( E2, ( isForward2 ? b2 : a2 ), param2, Face(), IsCutLine ) ) {
2521 if ( V2.IsSame ( Vn ) )
2522 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2523 else locMayEdit = Standard_False;
2524 }
2525 else cutEdge2 = Standard_True; //:h4
7fd59977 2526 }
3163e9fd 2527
2528 if ( locMayEdit &&
2529 newRange1 <= prevRange1 && newRange2 <= prevRange2 && //rln 09/01/98
2530 BRep_Tool::SameParameter ( E1 ) &&
2531 BRep_Tool::SameParameter ( E2 ) )
2532 {
2533 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2534 pnt = pint;
2535 if ( tol <= rad ) {
2536 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2537 tol = 1.001 * rad;
2538 }
7fd59977 2539 }
3163e9fd 2540 else
2541 {
2542 if(IsCutLine)
2543 {
2544 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2545 pnt = pint;
2546 if ( tol <= rad ) {
2547 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2548 tol = 1.001 * rad;
2549 }
2550 }
2551 else
2552 { // else increase tolerance
2553 if (tol < newtol)
2554 { //rln 07.04.99 CCI60005-brep.igs
2555 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2556 tol = newtol;
2557 }
2558 }
7fd59977 2559 }
2560 }
3163e9fd 2561 else
2562 {
2563 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2564 }
7fd59977 2565 }
2566
2567 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
2568
2569 B.UpdateVertex ( V1, pnt, tol );
2570 B.UpdateVertex ( V2, pnt, tol );
2571
2572 //:h4: make edges SP (after all cuts: t4mug.stp #3730+#6460)
2573 if ( cutEdge1 ) myFixEdge->FixSameParameter ( E1 );
2574 if ( cutEdge2 && !IsCutLine ) myFixEdge->FixSameParameter ( E2 );
2575 if ( cutEdge1 || cutEdge2 ) {
2576 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2577 }
2578 if ( ! myShape.IsNull() ) {
999d2599 2579 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
7fd59977 2580 }
2581 return Standard_True;
2582}
2583
2584//=======================================================================
2585//function : FixIntersectingEdges
2586//purpose :
2587//=======================================================================
2588//pdn 17.03.99 fixing non ajacent intersection by increasing tolerance of vertex
2589
2590Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num1,
2591 const Standard_Integer num2)
2592{
2593 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2594 if ( !IsReady() ) return Standard_False;
2595 IntRes2d_SequenceOfIntersectionPoint points2d;
2596 TColgp_SequenceOfPnt points3d;
2597 TColStd_SequenceOfReal errors;
2598 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
2599 if (theAdvAnalyzer.IsNull()) return Standard_False;
2600 theAdvAnalyzer->CheckIntersectingEdges ( num1, num2, points2d, points3d, errors);
2601 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2602 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2603 }
2604 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2605 TColgp_Array1OfPnt vertexPoints(1,4);
2606 TColStd_Array1OfReal vertexTolers(1,4);
2607 TColStd_Array1OfReal newTolers(1,4);
2608 TopTools_Array1OfShape vertices(1,4);
2609 newTolers.Init(0);
2610
2611 Handle(ShapeExtend_WireData) sbwd = WireData();
2612 Standard_Integer n2 = ( num1 >0 ? num1 : sbwd->NbEdges() );
2613 Standard_Integer n1 = ( num2 >1 ? num2 : sbwd->NbEdges() );
2614 if(n1==n2) return Standard_False;
2615
2616 TopoDS_Edge edge1 = sbwd->Edge(n1);
2617 TopoDS_Edge edge2 = sbwd->Edge(n2);
2618
2619 ShapeAnalysis_Edge sae;
2620 vertices(1) = sae.FirstVertex(edge1);
2621 vertices(2) = sae.LastVertex(edge1);
2622 vertices(3) = sae.FirstVertex(edge2);
2623 vertices(4) = sae.LastVertex(edge2);
2624
2625 Standard_Integer i; // svv Jan11 2000 : porting on DEC
2626 for (i = 1; i <=4; i++) {
2627 vertexPoints(i) = BRep_Tool::Pnt(TopoDS::Vertex(vertices(i)));
2628 vertexTolers(i) = BRep_Tool::Tolerance(TopoDS::Vertex(vertices(i)));
2629 }
2630
2631 Standard_Real aNewTolEdge1 = 0.0, aNewTolEdge2 = 0.0;
2632 Standard_Integer nb = points3d.Length();
2633 for ( i=1; i <= nb; i++ ) {
2634 gp_Pnt pint = points3d.Value(i);
2635
2636 // searching for the nearest vertexies to the intersection point
2637 Standard_Real aVtx1Param=0., aVtx2Param=0.;
2638 Standard_Integer aVC1, aVC2;
2639 Standard_Real aMinDist = RealLast();
2640 gp_Pnt aNearestVertex;
2641 Standard_Real aNecessaryVtxTole = 0.0;
2642 for(aVC1 = 1; aVC1 <= 2; aVC1++) {
2643 for(aVC2 = 3; aVC2 <= 4; aVC2++) {
2644
2645 Standard_Real aVtxIPDist = pint.Distance(vertexPoints(aVC1));
2646 Standard_Real aVtxVtxDist = vertexPoints(aVC1).Distance(vertexPoints(aVC2));
2647 if(aMinDist > aVtxIPDist && aVtxIPDist > aVtxVtxDist) {
2648 aNecessaryVtxTole = aVtxVtxDist;
2649 aNearestVertex = vertexPoints(aVC1);
2650 aMinDist = aVtxIPDist;
2651 aVtx1Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC1)),edge1);
2652 aVtx2Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC2)),edge2);
2653 }
2654 }
2655 }
2656
2657 // calculation of necessary tolerances of edges
2658 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2659 Standard_Real param1 = IP.ParamOnFirst();
2660 Standard_Real param2 = IP.ParamOnSecond();
2661 Handle(Geom_Curve) aCurve1, aCurve2;
2662 Standard_Real f,l;
2663 TopLoc_Location L1, L2;
2664 aCurve1 = BRep_Tool::Curve(edge1, L1, f, l);
2665 aCurve2 = BRep_Tool::Curve(edge2, L2, f, l);
2666
2667 // if aMinDist lower than resolution than the intersection point lyes inside the vertex
2668 if(aMinDist < gp::Resolution())
2669 continue;
2670
2671 Standard_Real aMaxEdgeTol1 = 0.0, aMaxEdgeTol2 = 0.0;
2672 if(aMinDist < RealLast() && !aCurve1.IsNull() && !aCurve2.IsNull())
2673 {
2674 gp_Lin aLig(aNearestVertex, gp_Vec(aNearestVertex, pint));
2675 Standard_Integer aPointsC;
2676 Standard_Real du1 = 0.05*(param1 - aVtx1Param);
2677 Standard_Real du2 = 0.05*(param2 - aVtx2Param);
2678 Standard_Real tole1=BRep_Tool::Tolerance(edge1);
2679 Standard_Real tole2=BRep_Tool::Tolerance(edge2);
2680 for(aPointsC = 2; aPointsC < 19; aPointsC++)
2681 {
2682 Standard_Real u = aVtx1Param + aPointsC * du1;
2683 gp_Pnt P1 = aCurve1->Value(u);
2684 P1.Transform(L1.Transformation());
2685 Standard_Real d1 = aLig.Distance(P1) * 2.0000001;
2686 if(d1 > tole1 && d1 > aMaxEdgeTol1)
2687 aMaxEdgeTol1 = d1;
2688
2689 u = aVtx2Param + aPointsC * du2;
2690 gp_Pnt P2 = aCurve2->Value(u);
2691 P2.Transform(L2.Transformation());
2692 Standard_Real d2 = aLig.Distance(P2) * 2.0000001;
2693 if(d2 > tole2 && d2 > aMaxEdgeTol2)
2694 aMaxEdgeTol2 = d2;
2695 }
2696 if(aMaxEdgeTol1 == 0.0 && aMaxEdgeTol2 == 0.0) continue;
2697 // if the vertexies are far than tolerances so
2698 // we do not need to increase edge tolerance
2699 if(aNecessaryVtxTole > Max(aMaxEdgeTol1, tole1) ||
2700 aNecessaryVtxTole > Max(aMaxEdgeTol2, tole2))
2701 {
2702 aMaxEdgeTol1 = 0.0;
2703 aMaxEdgeTol2 = 0.0;
2704 }
2705 }
2706
2707 Standard_Real rad = errors.Value(i);
2708 Standard_Real finTol = RealLast();
2709 Standard_Integer rank=1;
2710 for(Standard_Integer j=1; j<=4; j++) {
2711 Standard_Real newtol = 1.0001 * ( pint.Distance (vertexPoints(j)) + rad );
2712 if(newtol<finTol) {
2713 rank = j;
2714 finTol = newtol;
2715 }
2716 }
2717 if(finTol <= MaxTolerance()) {
2718 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1);
2719 if(newTolers(rank) < finTol)
2720 {
2721 if(Max(aMaxEdgeTol1, aMaxEdgeTol2) < finTol && (aMaxEdgeTol1 > 0 || aMaxEdgeTol2 > 0))
2722 {
2723 aNewTolEdge1 = Max(aNewTolEdge1, aMaxEdgeTol1);
2724 aNewTolEdge2 = Max(aNewTolEdge2, aMaxEdgeTol2);
2725 }
2726 else
2727 {
2728 newTolers(rank) = finTol;
2729 }
2730 }
2731 } else {
2732 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2733 }
2734 }
2735
2736 BRep_Builder B;
2737 // update of tolerances of edges
2738 if(aNewTolEdge1 > 0)
2739 {
2740 for(i = 1; i <= 2; i++)
2741 if(aNewTolEdge1 > Max(vertexTolers(i), newTolers(i)))
2742 newTolers(i) = aNewTolEdge1;
2743 B.UpdateEdge(edge1, aNewTolEdge1);
2744 }
2745 if(aNewTolEdge2 > 0)
2746 {
2747 for(i = 3; i <= 4; i++)
2748 if(aNewTolEdge2 > Max(vertexTolers(i), newTolers(i)))
2749 newTolers(i) = aNewTolEdge2;
2750 B.UpdateEdge(edge2, aNewTolEdge2);
2751 }
2752
2753 // update of tolerances of vertexies
2754 for(i = 1; i <=4; i++)
2755 if(newTolers(i)>0) B.UpdateVertex(TopoDS::Vertex(vertices(i)),newTolers(i));
2756
2757 if ( ! myShape.IsNull() ) {
999d2599 2758 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
7fd59977 2759 }
2760 return Standard_True;
2761}
2762
2763//=======================================================================
2764//function : FixLacking
2765//purpose : Test if two adjucent edges are disconnected in 2d (while connected
2766// in 3d), and in that case either increase tolerance of the vertex or
2767// add a new edge (straight in 2d space), in order to close wire in 2d.
2768// Returns True if edge was added or tolerance was increased.
2769//NOTE : Is to be run after FixDegenerated
2770//Algorithm: 1. Compute the 2d gap between edges and calculate a tolerance
2771// which should have vertex in order to comprise the gap
2772// (using GeomAdaptor_Surface); computed value is inctol
2773// 2. If inctol < tol of vertex, return False (everything is OK)
2774// 3. If inctol < Precision, just increase tolerance of vertex to inctol
2775// 4. Else (if both edges are not degenerated) try to add new edge
2776// with straight pcurve (in order to close the gap):
2777// a) if flag MayEdit is False
2778// 1. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2779// 2. else try to add degenerated edge (check that middle point of
2780// that pcurveis inside the vertex)
2781// b) if MayEdit is True
2782// 1. try to replace big vertex with two new small vertices
2783// connected by new edge. This is made if there is a 3d space
2784// between ends of adjacent edges.
2785// 2. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2786// 3. else add either degenerated or closed edge (if middle point
2787// of a pcurve of a new edge is inside the vertex, then
2788// degenerated edge is added, else new edge is closed).
2789// 5. If new edge cannot be added, but inctol < MaxTolerance,
2790// when increase tolerance of vertex to a value of inctol
2791//Short list of some internal variables:
2792// tol - tolerance of vertex
2793// tol2d - tolerance in parametric space of the surface corresponding to 2*tol
2794// dist2d - distance between ends of pcurves of edges (2d)
2795// inctol - tolerance required for vertex to close 2d gap (=tol*dist2d/tol2d)
2796// tol1, tol2 - tolerances of edges, tol0 = tol1 + tol2
2797// p3d1, p3d2 - ends of 3d curves of edges
2798//=======================================================================
2799//:h2 abv 28 May 98: merged modifications by abv 22 Apr 98, gka 27 May 98
2800// and pdn 25 May 98 concerning lacking closed or degenerated edges
2801// Example files: r0501_pe #107813, UKI60107-6 250, UKI60107-3 1577.
2802
2803//:s2 abv 21 Apr 99: add functionality for bending pcurve
2804static Standard_Boolean TryBendingPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
2805 const gp_Pnt2d p2d, const Standard_Boolean end,
2806 Handle(Geom2d_Curve) &c2d,
2807 Standard_Real &first, Standard_Real &last,
2808 Standard_Real &tol)
2809{
2810 ShapeAnalysis_Edge sae;
2811 if ( ! sae.PCurve ( E, face, c2d, first, last, Standard_False ) ) return Standard_False;
2812
2813 {
2814 try {
2815 OCC_CATCH_SIGNALS
2816 Handle(Geom2d_BSplineCurve) bs;
2817 if ( c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) )
2818 bs = Handle(Geom2d_BSplineCurve)::DownCast(c2d->Copy());
2819 else // if ( c2d->IsKind(STANDARD_TYPE(Geom2d_Line)) )
2820 {
2821 Handle(Geom2d_TrimmedCurve) trim = new Geom2d_TrimmedCurve ( c2d, first, last );
2822 bs = Geom2dConvert::CurveToBSplineCurve ( trim );
2823 }
2824 if ( bs.IsNull() ) return Standard_False;
2825
2826 Standard_Real par = ( end ? last : first );
2827 if ( fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2828 bs->Multiplicity(1) > bs->Degree() ) bs->SetPole ( 1, p2d );
2829 else if ( fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2830 bs->Multiplicity(bs->NbKnots()) > bs->Degree() ) bs->SetPole ( bs->NbPoles(), p2d );
2831 else {
2832 bs->Segment ( first, last );
2833 if (fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2834 bs->Multiplicity(1) > bs->Degree()) bs->SetPole ( 1, p2d );
2835 else if (fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2836 bs->Multiplicity(bs->NbKnots()) > bs->Degree()) bs->SetPole ( bs->NbPoles(), p2d );
2837 else return Standard_False;
2838 }
2839 c2d = bs;
3163e9fd 2840
2841 if ( ! TryNewPCurve ( E, face, c2d, first, last, tol ) ) return Standard_False;
7fd59977 2842 }
2843 catch ( Standard_Failure ) {
0797d9d3 2844#ifdef OCCT_DEBUG
7fd59977 2845 cout << "Warning: ShapeFix_Wire::FixLacking: Exception in Geom2d_BSplineCurve::Segment()" << endl;
2846#endif
2847 return Standard_False;
2848 }
2849 }
3163e9fd 2850
7fd59977 2851 return Standard_True;
2852}
2853
2854
2855//=======================================================================
2856//function : FixLacking
2857//purpose :
2858//=======================================================================
2859
2860Standard_Boolean ShapeFix_Wire::FixLacking (const Standard_Integer num,
2861 const Standard_Boolean force)
2862{
2863 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2864 if ( ! IsReady() ) return Standard_False;
2865
2866 //=============
2867 // First phase: analysis whether the problem (gap) exists
2868 gp_Pnt2d p2d1, p2d2;
2869 Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer)->CheckLacking ( num, ( force ? Precision() : 0. ), p2d1, p2d2 );
2870 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2871 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2872 }
2873 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2874
2875 //=============
2876 // Second phase: collection of data necessary for further analysis
2877
2878 Handle(ShapeExtend_WireData) sbwd = WireData();
2879 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2880 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2881 TopoDS_Edge E1 = sbwd->Edge(n1);
2882 TopoDS_Edge E2 = sbwd->Edge(n2);
2883
2884 ShapeAnalysis_Edge sae;
2885 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2886 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2887 Standard_Real tol = Max ( BRep_Tool::Tolerance ( V1 ), BRep_Tool::Tolerance ( V2 ) );
2888
2889 Standard_Real Prec = Precision();
2890 Standard_Real dist2d = myAnalyzer->MaxDistance2d();
2891 Standard_Real inctol = myAnalyzer->MaxDistance3d();
2892
2893 TopoDS_Face face = myAnalyzer->Face();
2894 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
2895
2896 gp_Pnt p3d1, p3d2;
2897 Standard_Real tol1=::Precision::Confusion(), tol2=::Precision::Confusion(); //SK
2898
2899 //=============
2900 //:s2 abv 21 Apr 99: Speculation: try bending pcurves
1d47d8d0 2901 Standard_Real bendtol1 = 0., bendtol2 = 0.;
7fd59977 2902 Handle(Geom2d_Curve) bendc1, bendc2;
1d47d8d0 2903 Standard_Real bendf1 = 0., bendl1 = 0., bendf2 = 0., bendl2 = 0.;
7fd59977 2904 if ( myGeomMode && ! BRep_Tool::IsClosed(E1,face) && ! BRep_Tool::IsClosed(E2,face) ) {
2905 gp_Pnt2d p2d = 0.5 * ( p2d1.XY() + p2d2.XY() );
2906 Standard_Boolean ok1 = TryBendingPCurve (E1, face, p2d, E1.Orientation() == TopAbs_FORWARD,
2907 bendc1, bendf1, bendl1, bendtol1);
2908 Standard_Boolean ok2 = TryBendingPCurve (E2, face, p2d, E2.Orientation() == TopAbs_REVERSED,
2909 bendc2, bendf2, bendl2, bendtol2);
2910 if ( ok1 && ! ok2 ) {
2911 bendtol2 = BRep_Tool::Tolerance(E2);
2912 ok1 = TryBendingPCurve (E1, face, p2d2, E1.Orientation() == TopAbs_FORWARD,
2913 bendc1, bendf1, bendl1, bendtol1);
2914 }
2915 else if ( ! ok1 && ok2 ) {
2916 bendtol1 = BRep_Tool::Tolerance(E1);
2917 ok2 = TryBendingPCurve (E2, face, p2d1, E2.Orientation() == TopAbs_FORWARD,
2918 bendc2, bendf2, bendl2, bendtol2);
2919 }
2920 if ( ! ok1 && ! ok2 ) bendc1.Nullify();
2921 }
2922
2923 //=============
2924 // Third phase: analyse how to fix the problem
2925
2926 // selector of solutions
2927 Standard_Boolean doIncrease = Standard_False; // increase tolerance
2928 Standard_Boolean doAddLong = Standard_False; // add long 3d edge in replacement of a vertex
2929 Standard_Boolean doAddClosed = Standard_False; // add closed 3d edge
2930 Standard_Boolean doAddDegen = Standard_False; // add degenerated edge
2931 Standard_Boolean doBend = Standard_False; //:s2 bend pcurves
2932
2933 // if bending is OK with existing tolerances of edges, take it
2934 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2935 ( ( bendtol1 < BRep_Tool::Tolerance(E1) &&
2936 bendtol2 < BRep_Tool::Tolerance(E2) ) ||
2937 ( inctol < Prec && bendtol1 < inctol && bendtol2 < inctol ) ) )
2938 doBend = Standard_True;
2939
2940 // is it OK just to increase tolerance (to a value less than preci)?
2941 else if ( inctol < Prec ) doIncrease = Standard_True;
2942
2943 // If increase is not OK or force, try to find other solutions (adding edge)
2944 else if ( ! BRep_Tool::Degenerated ( E2 ) && ! BRep_Tool::Degenerated ( E1 ) ) {
2945
2946 // analyze the 3d space btw edges: is it enough to add long 3d edge?
2947 if ( myTopoMode ) {
2948 Handle(Geom_Curve) c3d;
2949 Standard_Real a, b;
2950 if ( ! sae.Curve3d ( E1, c3d, a, b, Standard_True ) ) { // cannot work
2951 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2952 return Standard_False;
2953 }
2954 p3d1 = c3d->Value ( b );
2955 Standard_Real dist2d3d1 = p3d1.Distance ( surf->Value ( p2d1 ) );
2956 if ( ! sae.Curve3d ( E2, c3d, a, b, Standard_True ) ) { // cannot work
2957 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2958 return Standard_False;
2959 }
2960 p3d2 = c3d->Value ( a );
2961 Standard_Real dist2d3d2 = p3d2.Distance ( surf->Value ( p2d2 ) );
2962
2963 tol1 = Max ( BRep_Tool::Tolerance ( E1 ), dist2d3d1 );
2964 tol2 = Max ( BRep_Tool::Tolerance ( E2 ), dist2d3d2 );
2965 //:c5 Standard_Real tol0 = Max ( tol1 + tol2, thepreci );
2966 Standard_Real tol0 = tol1 + tol2; //:c5 abv 26 Feb 98: CTS17806 #44418
2967 Standard_Real dist3d2 = p3d1.SquareDistance ( p3d2 );
2968
2969 // is it OK to add a long 3d edge?
2970 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) && //:81 abv 20 Jan 98: don`t add back-going edges (zigzags)
2971 dist3d2 > 1.25 * tol0 * tol0 &&
2972 ( force || dist3d2 > Prec * Prec || inctol > MaxTolerance() ) ) {
2973 doAddLong = Standard_True;
2974 }
2975 }
2976
2977 //:h6 abv 25 Jun 98: BUC40132 6361: try to increase tol up to MaxTol if not add
2978 if ( ! doAddLong && inctol < MaxTolerance() &&
2979 ! myAnalyzer->Surface()->IsDegenerated ( p2d1, p2d2, 2.*tol, 10. ) ) { //:p7
2980 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
2981 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
2982 else doIncrease = Standard_True;
2983 }
2984 else
2985
2986 // else try to add either degenerated or closed edge
2987 if ( ! doAddLong ) {
2988 gp_Pnt pV = 0.5 * ( BRep_Tool::Pnt(V1).XYZ() + BRep_Tool::Pnt(V2).XYZ() );
2989 gp_Pnt pm = myAnalyzer->Surface()->Value ( 0.5 * ( p2d1.XY() + p2d2.XY() ) );
2990
2991 Standard_Real dist = pV.Distance ( pm );
2992 if ( dist <= tol ) doAddDegen = Standard_True;
2993 else if ( myTopoMode ) doAddClosed = Standard_True;
2994 else if ( dist <= MaxTolerance() ) { //:r7 abv 12 Apr 99: t3d_opt.stp #14245 after S4136
2995 doAddDegen = Standard_True;
2996 doIncrease = Standard_True;
2997 inctol = dist;
2998 }
2999 }
3000 }
3001
3002 else if ( !BRep_Tool::Degenerated(E2) && BRep_Tool::Degenerated(E1) ) {
3003 // create new degenerated edge and replace E1 to new edge
3004 }
3005 else if ( BRep_Tool::Degenerated(E2) && !BRep_Tool::Degenerated(E1) ) {
3006 // create new degenerated edge and replace E2 to new edge
3007 }
3008
3009 //=============
3010 // Third phase - do the fixes
3011 BRep_Builder B;
3012
3013 // add edge
3014 if ( doAddLong || doAddDegen || doAddClosed ) {
3015
3016 // construct new vertices
3017 TopoDS_Vertex newV1, newV2;
3018 if ( doAddLong ) {
3019 newV1 = BRepBuilderAPI_MakeVertex ( p3d1 );
3020 newV1.Reverse();
3021 newV2 = BRepBuilderAPI_MakeVertex ( p3d2 );
3022 B.UpdateVertex ( newV1, 1.001 * tol1 );
3023 B.UpdateVertex ( newV2, 1.001 * tol2 );
3024 }
3025 else {
3026 newV1 = V1;
3027 newV2 = V2;
3028 }
3029
3030 // prepare new edge
3031 TopoDS_Edge edge;
3032 B.MakeEdge ( edge );
3033 if ( doAddDegen ) B.Degenerated ( edge, Standard_True ); // sln: do it before adding curve
3034 gp_Vec2d v12 ( p2d1, p2d2 );
3035 Handle(Geom2d_Line) theLine2d = new Geom2d_Line ( p2d1, gp_Dir2d ( v12 ) );
3036 B.UpdateEdge ( edge, theLine2d, face, ::Precision::Confusion() );
3037 B.Range ( edge, face, 0, dist2d );
3038 B.Add ( edge, newV1.Oriented ( TopAbs_FORWARD ) );
3039 B.Add ( edge, newV2.Oriented ( TopAbs_REVERSED ) );
3040 ShapeBuild_Edge sbe;
3041 if ( ! doAddDegen && ! sbe.BuildCurve3d ( edge ) ) {
3042 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
3043 return Standard_False;
3044 }
3045
3046 // if long edge is added, replace vertices of adjacent edges
3047 if ( doAddLong ) {
3048
3049 // replace 1st edge (n1==n2 - special case: wire consists of one edge)
3050 TopoDS_Edge edge1 = sbe.CopyReplaceVertices ( E1,
3051 ( n1 == n2 ? newV2 : TopoDS_Vertex() ), newV1 );
3052 sbwd->Set ( edge1, n1 );
3053 if ( ! Context().IsNull() ) {
3054 Context()->Replace ( E1, edge1 );
3055 // actually, this will occur only in context of single face
3056 // hence, recording to ReShape is rather for tracking modifications
3057 // than for keeping sharing
3058 Context()->Replace ( V1, newV1.Oriented ( V1.Orientation() ) );
3059 if ( ! V1.IsSame ( V2 ) ) {
3060 Context()->Replace ( V2, newV2.Oriented ( V2.Orientation() ) );
3061 }
3062 }
3063 // replace 2nd edge
3064 if ( n1 != n2 ) {
3065 TopoDS_Edge edge2 = sbe.CopyReplaceVertices ( E2, newV2, TopoDS_Vertex() );
3066 sbwd->Set ( edge2, n2 );
3067 if ( ! Context().IsNull() ) Context()->Replace ( E2, edge2 );
3068 }
3069 if ( ! Context().IsNull() ) UpdateWire();
3070 }
3071
3072 // insert new edge
3073 if ( doAddDegen ) {
3074 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
0797d9d3 3075#ifdef OCCT_DEBUG
7fd59977 3076 cout << "Warning: ShapeFix_Wire::FixLacking: degenerated edge added" << endl;
3077#endif
3078 }
3079 else if ( ! doAddLong ) {
3080 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
3081 }
3082 sbwd->Add ( edge, n2 );
3083 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
3084 }
3085
3086 // else try to increase tol up to MaxTol
3087 else if ( inctol > tol && inctol < MaxTolerance() ) {
3088 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
3089 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
3090 else doIncrease = Standard_True;
3091 }
3092
3093 // bend pcurves
3094 if ( doBend ) { //:s2 abv 21 Apr 99
3095 B.UpdateEdge ( E1, bendc1, face, bendtol1 );
3096 B.Range ( E1, face, bendf1, bendl1 );
3097 B.UpdateEdge ( E2, bendc2, face, bendtol2 );
3098 B.Range ( E2, face, bendf2, bendl2 );
3099 B.UpdateVertex ( sae.FirstVertex(E1), bendtol1 );
3100 B.UpdateVertex ( sae.LastVertex(E1), bendtol1 );
3101 B.UpdateVertex ( sae.FirstVertex(E2), bendtol2 );
3102 B.UpdateVertex ( sae.LastVertex(E2), bendtol2 );
3103 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
3104 //:s3 abv 22 Apr 99: PRO7187 #11534: self-intersection not detected unitil curve is bent (!)
3105 FixSelfIntersectingEdge ( n1 );
3106 FixSelfIntersectingEdge ( n2 );
3107 FixIntersectingEdges ( n2 ); //skl 24.04.2003 for OCC58
0797d9d3 3108#ifdef OCCT_DEBUG
7fd59977 3109 cout << "Info: ShapeFix_Wire::FixLacking: Bending pcurves" << endl;
3110#endif
3111 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
3112 }
3113
3114 // increase vertex tolerance
3115 if ( doIncrease ) {
3116 B.UpdateVertex ( V1, 1.001 * inctol );
3117 B.UpdateVertex ( V2, 1.001 * inctol );
3118 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
3119 }
3120
3121 if ( LastFixStatus ( ShapeExtend_DONE ) ) return Standard_True;
3122
3123 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
3124 return Standard_False;
3125}
3126
3127//=======================================================================
3128//function : FixNotchedEdges
3129//purpose :
3130//=======================================================================
3131
3132Standard_Boolean ShapeFix_Wire::FixNotchedEdges()
3133{
3134 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
3135 if ( ! IsReady() ) return Standard_False;
3136
3137 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = Handle(ShapeAnalysis_Wire)::DownCast(myAnalyzer);
3138 TopoDS_Face face = Face();
3139 if ( ! Context().IsNull() ) UpdateWire();
3140 Handle(ShapeExtend_WireData) sewd = WireData();
3141
ba9cc08b 3142 for (Standard_Integer i = 1; i <= NbEdges() && NbEdges() > 2; i++) {
7fd59977 3143 Standard_Real param;
3144 Standard_Integer toRemove;
3145 if(theAdvAnalyzer->CheckNotchedEdges(i,toRemove,param,MinTolerance())){
3146 Standard_Integer n2 = (i > 0) ? i : NbEdges();
3147 Standard_Integer n1 = (n2 > 1) ? n2-1 : NbEdges();
3148 Standard_Boolean isRemoveFirst = (n1==toRemove);
3149 Standard_Integer toSplit = (n2==toRemove ? n1 : n2);
3150 TopoDS_Edge splitE = sewd->Edge ( toSplit );
3151 ShapeAnalysis_Edge sae;
3152 Handle(Geom2d_Curve) c2d;
3153 Standard_Real a, b;
3154 sae.PCurve ( splitE, face, c2d, a, b, Standard_True );
3155 Standard_Real ppar = (isRemoveFirst ? b : a);
3156 ShapeBuild_Edge sbe;
3157 TopAbs_Orientation orient = splitE.Orientation();
3158 if ( Abs(param - ppar) > ::Precision::PConfusion() ) {
3159 //pdn perform splitting of the edge and adding to wire
3160
3161 //pdn check if it is necessary
3162 if( Abs((isRemoveFirst ? a : b)-param) < ::Precision::PConfusion() ) {
3163 continue;
3164 }
3165
3166 Handle(ShapeAnalysis_TransferParametersProj) transferParameters =
3167 new ShapeAnalysis_TransferParametersProj;
3168 transferParameters->SetMaxTolerance(MaxTolerance());
3169 transferParameters->Init(splitE,face);
3170 Standard_Real first, last;
3171 if (a < b ) {
3172 first = a;
3173 last = b;
3174 }
3175 else {
3176 first = b;
3177 last = a;
3178 }
3179 TopoDS_Vertex Vnew;
3180 BRep_Builder B;
3181 B.MakeVertex(Vnew,Analyzer()->Surface()->Value(c2d->Value(param)),::Precision::Confusion());
3182 TopoDS_Edge wE = splitE;
3183 wE.Orientation ( TopAbs_FORWARD );
3184 TopoDS_Shape aTmpShape = Vnew.Oriented(TopAbs_REVERSED); //for porting
3185 TopoDS_Edge newE1 = sbe.CopyReplaceVertices ( wE, sae.FirstVertex(wE), TopoDS::Vertex(aTmpShape) );
3186 sbe.CopyPCurves ( newE1, wE );
3187 transferParameters->TransferRange(newE1,first,param,Standard_True);
3188 B.SameRange(newE1,Standard_False);
3189 B.SameParameter(newE1,Standard_False);
3190 aTmpShape = Vnew.Oriented(TopAbs_FORWARD);
3191 TopoDS_Edge newE2 = sbe.CopyReplaceVertices ( wE, TopoDS::Vertex(aTmpShape),sae.LastVertex(wE) );
3192 sbe.CopyPCurves ( newE2, wE );
3193 transferParameters->TransferRange(newE2,param,last,Standard_True);
3194 B.SameRange(newE2,Standard_False);
3195 B.SameParameter(newE2,Standard_False);
3196
3197 if ( !Context().IsNull() ) {
3198 TopoDS_Wire wire;
3199 B.MakeWire(wire);
3200 B.Add(wire,newE1);
3201 B.Add(wire,newE2);
3202 Context()->Replace ( wE, wire );
3203 }
3204
3205 newE1.Orientation(orient);
3206 newE2.Orientation(orient);
3207 if (orient==TopAbs_REVERSED){ TopoDS_Edge tmp = newE2; newE2 = newE1; newE1=tmp;}
3208
3209 Standard_Boolean isRemoveLast = ((n1==NbEdges())&&(n2==1));
3210 sewd->Set ( newE1, toSplit);
3211 sewd->Add ( newE2, (toSplit==NbEdges() ? 0 : toSplit+1));
3212
3213 FixDummySeam(isRemoveLast ? NbEdges() : toRemove);
3214 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
3215 }
3216 else
94f71cad 3217 {
3218 FixDummySeam(n1);
3219 // The seam edge is removed from the list. So, need to step back to avoid missing of edge processing
3220 i--;
3221 }
7fd59977 3222
3223 i--;
3224 if(!Context().IsNull()) //skl 07.03.2002 for OCC180
3225 UpdateWire();
3226 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
3227 }
3228 }
3229 myStatusNotches = myLastFixStatus;
3230 return LastFixStatus ( ShapeExtend_DONE );
3231}
3232
3233//=======================================================================
3234//function : FixDummySeam
3235//purpose :
3236//=======================================================================
3237
3238static void CopyReversePcurves(const TopoDS_Edge& toedge,
3239 const TopoDS_Edge& fromedge,
3240 const Standard_Boolean reverse)
3241{
3242 TopLoc_Location fromLoc = fromedge.Location();
3243 TopLoc_Location toLoc = toedge.Location();
3244 for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3245 ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3246 Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3247 if ( fromGC.IsNull() ) continue;
3248 if ( fromGC->IsCurveOnSurface() ) {
3249 Handle(Geom_Surface) surface = fromGC->Surface();
3250 TopLoc_Location L = fromGC->Location();
3251 Standard_Boolean found = Standard_False;
3252 BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3253 Handle(BRep_GCurve) toGC;
3254 for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3255 toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3256 if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3257 surface != toGC->Surface() || L != toGC->Location() ) continue;
3258 found = Standard_True;
3259 break;
3260 }
3261 if (!found) {
3262 Standard_Real fp = fromGC->First();
3263 Standard_Real lp = fromGC->Last();
3264 toGC = Handle(BRep_GCurve)::DownCast(fromGC->Copy());
3265 tolist.Append (toGC);
3266 Handle(Geom2d_Curve) pcurve = Handle(Geom2d_Curve)::DownCast( fromGC->PCurve()->Copy() );
3267 if (reverse) {
3268 fp = pcurve->ReversedParameter(fp);
3269 lp = pcurve->ReversedParameter(lp);
3270 pcurve->Reverse();
3271 Standard_Real tmp = fp;
3272 fp = lp;
3273 lp = tmp;
3274 }
3275 //bug OCC209 invalid location of pcurve in the edge after copying
3276 TopLoc_Location newLoc = (fromLoc*L).Predivided(toLoc);
3277 toGC->SetRange(fp,lp);
3278 toGC->PCurve(pcurve);
3279 toGC->Location(newLoc);
3280 if ( fromGC->IsCurveOnClosedSurface() ) {
3281 pcurve = fromGC->PCurve2();
3282 toGC->PCurve2(Handle(Geom2d_Curve)::DownCast(pcurve->Copy()));
3283 }
3284 }
3285 }
3286 }
3287}
3288
3289//=======================================================================
3290//function : HasNewPCurves
3291//purpose :
3292//=======================================================================
3293// Note: This function temporarily not used, because adress to it in
3294// function FixDummySeam() (see below line 2472) not used too
3295//
3296//static Standard_Boolean HasNewPCurves(const TopoDS_Edge& toedge,
3297// const TopoDS_Edge& fromedge)
3298//
3299//{
3300// for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3301// ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3302// Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3303// if ( fromGC.IsNull() ) continue;
3304// if ( fromGC->IsCurveOnSurface() ) {
3305// Handle(Geom_Surface) surface = fromGC->Surface();
3306// TopLoc_Location L = fromGC->Location();
3307// Standard_Boolean found = Standard_False;
3308// BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3309// Handle(BRep_GCurve) toGC;
3310// for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3311// toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3312// if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3313// surface != toGC->Surface() || L != toGC->Location() ) continue;
3314// found = Standard_True;
3315// break;
3316// }
3317// if (!found)
3318// return Standard_True;
3319// }
3320// }
3321// return Standard_False;
3322//}
3323
3324//=======================================================================
3325//function : FixDummySeam
3326//purpose :
3327//=======================================================================
3328
3329void ShapeFix_Wire::FixDummySeam(const Standard_Integer num)
3330{
3331 ShapeAnalysis_Edge sae;
3332 ShapeBuild_Edge sbe;
3333 ShapeBuild_Vertex sbv;
3334 Standard_Integer num1 = (num == NbEdges()) ? 1 : num+1;
3335 Handle(ShapeExtend_WireData) sewd = WireData();
3336 TopoDS_Edge E1 = sewd->Edge(num), E2 = sewd->Edge(num1);
3337 TopoDS_Vertex V1 = sae.FirstVertex(E1), V2 = sae.LastVertex(E2);
3338 TopoDS_Vertex Vm = sbv.CombineVertex ( V1, V2, 1.0001 );
3339
3340 //pnd defining if new pcurves exists
3341 //pdn Temporary not removed
3342// Standard_Boolean toRemove = !(HasNewPCurves(E1,E2)||HasNewPCurves(E2,E1));
3343 Standard_Boolean toRemove = Standard_False;
3344
3345 //creating new edge with pcurves and new vertex
3346 TopoDS_Vertex Vs = sae.FirstVertex(E2);
3347 if ( Vs.IsSame ( V1 ) || Vs.IsSame ( V2 ) ) Vs = Vm;
3348 TopoDS_Edge newEdge = sbe.CopyReplaceVertices ( E2, Vs, Vm );
3349 CopyReversePcurves(newEdge,E1,E1.Orientation()==E2.Orientation());
3350 BRep_Builder B;
3351 B.SameRange(newEdge,Standard_False);
3352 B.SameParameter(newEdge,Standard_False);
3353
3354 if ( !Context().IsNull() ) {
3355 if (toRemove) {
3356 Context()->Remove ( E2 );
3357 Context()->Remove ( E1 );
3358 }
3359 else {
3360 Context()->Replace ( E2, newEdge );
3361 Context()->Replace ( E1, newEdge.Reversed());
3362 }
3363 Context()->Replace ( V1, Vm.Oriented(V1.Orientation()) );
3364 Context()->Replace ( V2, Vm.Oriented(V2.Orientation()) );
3365 }
3366
3367 Standard_Integer next = ( num1 == NbEdges()) ? 1 : num1+1;
3368 Standard_Integer prev = ( num > 1) ? num-1 : NbEdges();
3369 TopoDS_Edge prevE = sewd->Edge(prev), nextE = sewd->Edge(next);
3370
3371 TopoDS_Edge tmpE1=sbe.CopyReplaceVertices( prevE, TopoDS_Vertex(), Vm);
3372 sewd->Set ( tmpE1,prev );
3373 if ( !Context().IsNull() ) Context()->Replace ( prevE, tmpE1);
3374
3375 tmpE1 = sbe.CopyReplaceVertices ( nextE, Vm, TopoDS_Vertex());
3376 sewd->Set ( tmpE1,next );
3377 if ( !Context().IsNull() ) Context()->Replace ( nextE, tmpE1);
3378
3379 //removing edges from wire
3380 Standard_Integer n1, n2;
3381 if ( num < num1 ) {
3382 n1 = num; n2 = num1;
3383 } else {
3384 n1 = num1; n2 = num;
3385 }
3386 sewd->Remove(n2);
3387 sewd->Remove(n1);
3388}
3389
3390//=======================================================================
3391//function : UpdateWire
3392//purpose :
3393//=======================================================================
3394
3395void ShapeFix_Wire::UpdateWire ()
3396{
3397 Handle(ShapeExtend_WireData) sbwd = WireData();
3398 for ( Standard_Integer i=1; i <= sbwd->NbEdges(); i++ ) {
3399 TopoDS_Edge E = sbwd->Edge(i);
3400 TopoDS_Shape S = Context()->Apply ( E );
3401 if ( S == E ) continue;
3402 for ( TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next() )
3403 sbwd->Add ( exp.Current(), i++ );
3404 sbwd->Remove ( i-- );
3405 }
3406}
fbf3becf 3407
3408//=======================================================================
3409//function : FixTails
3410//purpose :
3411//=======================================================================
3412Standard_Boolean ShapeFix_Wire::FixTails()
3413{
3414 if (myMaxTailWidth < 0 || !IsReady())
3415 {
3416 return Standard_False;
3417 }
3418
3419 myLastFixStatus = ShapeExtend::EncodeStatus(ShapeExtend_OK);
3420 if (!Context().IsNull())
3421 {
3422 UpdateWire();
3423 }
3424 Handle(ShapeExtend_WireData) aSEWD = WireData();
3425 Standard_Integer aECount = NbEdges(), aENs[] = {aECount, 1};
3426 Standard_Boolean aCheckAngle = Standard_True;
3427 while (aECount >= 2 && aENs[1] <= aECount)
3428 {
3429 const TopoDS_Edge aEs[] = {aSEWD->Edge(aENs[0]), aSEWD->Edge(aENs[1])};
3430 TopoDS_Edge aEParts[2][2];
3431 if (!myAnalyzer->CheckTail(aEs[0], aEs[1],
3432 aCheckAngle ? myMaxTailAngleSine : -1, myMaxTailWidth, MaxTolerance(),
3433 aEParts[0][0], aEParts[0][1], aEParts[1][0], aEParts[1][1]))
3434 {
3435 aENs[0] = aENs[1]++;
3436 aCheckAngle = Standard_True;
3437 continue;
3438 }
3439
3440 // Provide not less than 1 edge in the result wire.
3441 Standard_Integer aSplitCounts[] =
3442 {aEParts[0][1].IsNull() ? 0 : 1, aEParts[1][1].IsNull() ? 0 : 1};
3443 const Standard_Integer aRemoveCount =
3444 (aEParts[0][0].IsNull() ? 0 : 1) + (aEParts[1][0].IsNull() ? 0 : 1);
3445 if (aECount + aSplitCounts[0] + aSplitCounts[1] < 1 + aRemoveCount)
3446 {
3447 aENs[0] = aENs[1]++;
3448 aCheckAngle = Standard_True;
3449 continue;
3450 }
3451
3452 // Split the edges.
3453 for (Standard_Integer aEI = 0; aEI < 2; ++aEI)
3454 {
3455 if (aSplitCounts[aEI] == 0)
3456 {
3457 continue;
3458 }
3459
3460 // Replace the edge by the wire of its parts in the shape.
3461 const TopoDS_Edge aE = aEs[aEI];
3462 if (!Context().IsNull())
3463 {
3464 TopoDS_Wire aEWire;
3465 BRep_Builder().MakeWire(aEWire);
3466 BRep_Builder().Add(aEWire, aEParts[aEI][0]);
3467 BRep_Builder().Add(aEWire, aEParts[aEI][1]);
3468 TopoDS_Edge aFE = TopoDS::Edge(aE.Oriented(TopAbs_FORWARD));
3469 Context()->Replace(aFE, aEWire);
3470 }
3471
3472 // Replace the edge by its parts in the edge wire.
3473 const TopAbs_Orientation aOrient = aE.Orientation();
3474 aEParts[aEI][0].Orientation(aOrient);
3475 aEParts[aEI][1].Orientation(aOrient);
3476 const Standard_Integer aFirstPI = (aOrient != TopAbs_REVERSED) ? 0 : 1;
3477 const Standard_Integer aAdd =
3478 (aEI == 0 || aENs[1] < aENs[0]) ? 0 : aSplitCounts[0];
3479 aSEWD->Set(aEParts[aEI][aFirstPI], aENs[aEI] + aAdd);
3480 aSEWD->Add(aEParts[aEI][1 - aFirstPI], aENs[aEI] + 1 + aAdd);
3481 }
3482
3483 // Remove the tail.
3484 if (aRemoveCount == 2)
3485 {
3486 aCheckAngle = Standard_True;
3487 FixDummySeam(aENs[0] + aSplitCounts[0] +
3488 ((aENs[0] < aENs[1]) ? 0 : aSplitCounts[1]));
3489 if (!Context().IsNull())
3490 {
3491 UpdateWire();
3492 }
3493 myLastFixStatus |= ShapeExtend::EncodeStatus(ShapeExtend_DONE);
3494
3495 if (aSplitCounts[0] + aSplitCounts[1] == 2)
3496 {
3497 aENs[0] = aENs[1]++;
3498 continue;
3499 }
3500
3501 if (aSplitCounts[0] == aSplitCounts[1])
3502 {
3503 aECount -= 2;
3504 if (aENs[1] >= 3)
3505 {
3506 --aENs[0];
3507 --aENs[1];
3508 }
3509 else
3510 {
3511 aENs[0] = aECount;
3512 aENs[1] = 1;
3513 }
3514 aCheckAngle = Standard_False;
3515 }
3516 else
3517 {
3518 --aECount;
3519 if (aSplitCounts[0] != 0)
3520 {
3521 aENs[0] = (aENs[0] <= aECount) ? aENs[0] : aECount;
3522 }
3523 else
3524 {
3525 if (aENs[1] >= 3)
3526 {
3527 --aENs[0];
3528 --aENs[1];
3529 }
3530 else
3531 {
3532 aENs[0] = aECount;
3533 aENs[1] = 1;
3534 }
3535 }
3536 }
3537 }
3538 else
3539 {
3540 aCheckAngle = Standard_False;
3541 --aECount;
3542 const Standard_Integer aRI = aEParts[0][0].IsNull() ? 1 : 0;
3543 if (aSplitCounts[aRI] != 0)
3544 {
3545 if (aRI == 0)
3546 {
3547 if (aENs[1] >= 3)
3548 {
3549 --aENs[0];
3550 --aENs[1];
3551 }
3552 else
3553 {
3554 aENs[0] = aECount;
3555 aENs[1] = 1;
3556 }
3557 }
3558 else
3559 {
3560 aENs[0] = (aENs[1] > 1) ? aENs[0] : aECount;
3561 }
3562 }
3563 aSEWD->Remove(aENs[aRI] + ((aRI != 0 || aSplitCounts[0] == 0) ? 0 : 1));
3564 if (!Context().IsNull())
3565 {
3566 Context()->Remove(aEs[aRI].Oriented(TopAbs_FORWARD));
3567 UpdateWire();
3568 }
3569 myLastFixStatus |= ShapeExtend::EncodeStatus(ShapeExtend_DONE);
3570 }
3571 }
3572 myStatusNotches = myLastFixStatus;
3573 return ShapeExtend::DecodeStatus(myLastFixStatus, ShapeExtend_DONE);
3574}