0030052: Data Exchange - STEP import missing surfaces
[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
92efcf78 121IMPLEMENT_STANDARD_RTTIEXT(ShapeFix_Wire,ShapeFix_Root)
122
42cf5bc1 123//S4135
7fd59977 124//#######################################################################
125// Constructors, initializations, modes, querying
126//#######################################################################
7fd59977 127//=======================================================================
128//function : ShapeFix_Wire
129//purpose :
130//=======================================================================
fbf3becf 131ShapeFix_Wire::ShapeFix_Wire() : myMaxTailAngleSine(0), myMaxTailWidth(-1)
7fd59977 132{
133 myFixEdge = new ShapeFix_Edge;
134 myAnalyzer = new ShapeAnalysis_Wire;
135 ClearModes();
136 ClearStatuses();
137 myStatusRemovedSegment = Standard_False;
138}
139
140//=======================================================================
141//function : ShapeFix_Wire
142//purpose :
143//=======================================================================
144
fbf3becf 145ShapeFix_Wire::ShapeFix_Wire (
146 const TopoDS_Wire& wire,
147 const TopoDS_Face &face,
148 const Standard_Real prec) : myMaxTailAngleSine(0), myMaxTailWidth(-1)
7fd59977 149{
150 myFixEdge = new ShapeFix_Edge;
151 myAnalyzer = new ShapeAnalysis_Wire;
152 ClearModes();
153 SetMaxTolerance ( prec );
154 myStatusRemovedSegment = Standard_False;
155 Init ( wire, face, prec );
156}
157
158//=======================================================================
159//function : SetPrecision
160//purpose :
161//=======================================================================
162
163void ShapeFix_Wire::SetPrecision (const Standard_Real prec)
164{
165 ShapeFix_Root::SetPrecision ( prec );
166 myAnalyzer->SetPrecision ( prec );
167}
168
169//=======================================================================
fbf3becf 170//function : SetMaxTailAngle
171//purpose :
172//=======================================================================
173void ShapeFix_Wire::SetMaxTailAngle(const Standard_Real theMaxTailAngle)
174{
175 myMaxTailAngleSine = Sin(theMaxTailAngle);
176 myMaxTailAngleSine = (myMaxTailAngleSine >= 0) ? myMaxTailAngleSine : 0;
177}
178
179//=======================================================================
180//function : SetMaxTailWidth
181//purpose :
182//=======================================================================
183void ShapeFix_Wire::SetMaxTailWidth(const Standard_Real theMaxTailWidth)
184{
185 myMaxTailWidth = theMaxTailWidth;
186}
187
188//=======================================================================
7fd59977 189//function : ClearModes
190//purpose :
191//=======================================================================
192
193void ShapeFix_Wire::ClearModes()
194{
195 myTopoMode = Standard_False;
196 myGeomMode = Standard_True;
197 myClosedMode = Standard_True;
198 myPreference2d = Standard_True;
199 myFixGapsByRanges = Standard_False;
200
201 myRemoveLoopMode = -1;
202
203 myFixReversed2dMode = -1;
204 myFixRemovePCurveMode = -1;
205 myFixRemoveCurve3dMode = -1;
206 myFixAddPCurveMode = -1;
207 myFixAddCurve3dMode = -1;
208 myFixSeamMode = -1;
209 myFixShiftedMode = -1;
210 myFixSameParameterMode = -1;
211 myFixVertexToleranceMode = -1;
212
213 myFixNotchedEdgesMode = -1;
214 myFixSelfIntersectingEdgeMode = -1;
215 myFixIntersectingEdgesMode = -1;
216 myFixNonAdjacentIntersectingEdgesMode = -1;
fbf3becf 217 myFixTailMode = 0;
7fd59977 218
219 myFixReorderMode = -1;
220 myFixSmallMode = -1;
221 myFixConnectedMode = -1;
222 myFixEdgeCurvesMode = -1;
223 myFixDegeneratedMode = -1;
224 myFixSelfIntersectionMode = -1;
225 myFixLackingMode = -1;
226 myFixGaps3dMode = -1;
227 myFixGaps2dMode = -1;
228}
229
230//=======================================================================
231//function : ClearStatuses
232//purpose :
233//=======================================================================
234
235void ShapeFix_Wire::ClearStatuses()
236{
237 Standard_Integer emptyStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
238
239 myLastFixStatus = emptyStatus;
240
241 myStatusReorder = emptyStatus;
242 myStatusSmall = emptyStatus;
243 myStatusConnected = emptyStatus;
244 myStatusEdgeCurves = emptyStatus;
245 myStatusDegenerated = emptyStatus;
246 myStatusSelfIntersection = emptyStatus;
247 myStatusLacking = emptyStatus;
248 myStatusGaps3d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
249 myStatusGaps2d = emptyStatus; //szv#9:S4244:19Aug99 new method introduced
250 myStatusClosed = emptyStatus;
fbf3becf 251 myStatusNotches = emptyStatus;
252 myStatusFixTails = emptyStatus;
7fd59977 253}
254
255//=======================================================================
256//function : Init
257//purpose :
258//=======================================================================
259
260void ShapeFix_Wire::Init (const TopoDS_Wire& wire,
261 const TopoDS_Face &face, const Standard_Real prec)
262{
263 Load ( wire );
264 SetFace ( face );
265 SetPrecision ( prec );
266}
267
268//=======================================================================
269//function : Init
270//purpose :
271//=======================================================================
272
273void ShapeFix_Wire::Init (const Handle(ShapeAnalysis_Wire)& saw)
274{
275 ClearStatuses();
276 myAnalyzer = saw;
277 myShape.Nullify();
278// SetPrecision ( saw.Precision() );
279}
280
281//=======================================================================
282//function : Load
283//purpose :
284//=======================================================================
285
286void ShapeFix_Wire::Load (const TopoDS_Wire& wire)
287{
288 ClearStatuses();
289
290 TopoDS_Wire W = wire;
291 if ( ! Context().IsNull() ) {
292 TopoDS_Shape S = Context()->Apply ( wire );
293 W = TopoDS::Wire ( S );
294 }
295
296 myAnalyzer->Load ( W );
297 myShape = wire;
298}
299
300//=======================================================================
301//function : Load
302//purpose :
303//=======================================================================
304
305void ShapeFix_Wire::Load (const Handle(ShapeExtend_WireData)& sbwd)
306{
307 ClearStatuses();
308 myAnalyzer->Load ( sbwd );
309 if ( ! Context().IsNull() ) UpdateWire();
310 myShape.Nullify();
311}
312
313//=======================================================================
314//function : NbEdges
315//purpose :
316//=======================================================================
317
318Standard_Integer ShapeFix_Wire::NbEdges() const
319{
320 Handle(ShapeExtend_WireData) sbwd = myAnalyzer->WireData();
321 return sbwd.IsNull() ? 0 : sbwd->NbEdges();
322}
323
324//#######################################################################
325// Fixing methods of API level
326//#######################################################################
327
328//=======================================================================
329//function : Perform
330//purpose : This method performs all the available fixes.
331// If some fix is turned on or off explicitly by the flag,
332// it is called or not depending on that flag
333// Else (i.e. if flag is default) fix is called depending on the
334// situation: default is True, but some fixes are not called or
335// are limited if order of edges in the wire is not OK
336//=======================================================================
337
338Standard_Boolean ShapeFix_Wire::Perform()
339{
340 ClearStatuses();
341 if ( ! IsLoaded() ) return Standard_False;
ed5ca017 342
343 if ( !Context().IsNull() )
344 myFixEdge->SetContext( Context() );
7fd59977 345
dde68833 346 Standard_Boolean Fixed = Standard_False;
7fd59977 347
348 // FixReorder is first, because as a rule wire is required to be ordered
349 // We shall analyze the order of edges in the wire and set appropriate
350 // status even if FixReorder should not be called (if it is forbidden)
351
352 ShapeAnalysis_WireOrder sawo;
353 Standard_Boolean ReorderOK = ( myAnalyzer->CheckOrder ( sawo, myClosedMode ) ==0 );
354 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
355 if(FixReorder()) Fixed = Standard_True;
356 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
357 }
358
359 // FixSmall is allowed to change topology only if mode is set and FixReorder
360 // did not failed
361 if ( NeedFix ( myFixSmallMode, myTopoMode ) ) {
362 if ( FixSmall ( ! myTopoMode || ! ReorderOK, MinTolerance() ) ) {
363 Fixed = Standard_True;
364 // retry reorder if necessary (after FixSmall it can work better)
365 if ( NeedFix ( myFixReorderMode, ! ReorderOK ) ) {
366 FixReorder();
367 ReorderOK = ! StatusReorder ( ShapeExtend_FAIL );
368 }
369 }
370 }
371
372 if ( NeedFix ( myFixConnectedMode, ReorderOK ) ) {
373 if ( FixConnected() ) Fixed = Standard_True;
374 }
375
376 if ( NeedFix ( myFixEdgeCurvesMode ) ) {
377 Standard_Integer savFixShiftedMode = myFixShiftedMode;
378 // turn out FixShifted if reorder not done
379 if ( myFixShiftedMode == -1 && ! ReorderOK ) myFixShiftedMode = 0;
380 if ( FixEdgeCurves() ) Fixed = Standard_True;
381 myFixShiftedMode = savFixShiftedMode;
382 }
383
384 if ( NeedFix ( myFixDegeneratedMode ) ) {
385 if ( FixDegenerated() ) Fixed = Standard_True; // ?? if ! ReorderOK ??
386 }
387
388 //pdn - temporary to test
fbf3becf 389 if (myFixTailMode <= 0 && NeedFix(myFixNotchedEdgesMode, ReorderOK))
390 {
7fd59977 391 Fixed |= FixNotchedEdges();
392 if(Fixed) FixShifted(); //skl 07.03.2002 for OCC180
393 }
394
fbf3becf 395 if (myFixTailMode != 0)
396 {
6a9f983a 397 if (FixTails())
fbf3becf 398 {
6a9f983a 399 Fixed =Standard_True;
fbf3becf 400 FixShifted();
401 }
402 }
403
7fd59977 404 if ( NeedFix ( myFixSelfIntersectionMode, myClosedMode ) ) {
405 Standard_Integer savFixIntersectingEdgesMode = myFixIntersectingEdgesMode;
406 // switch off FixIntEdges if reorder not done
407 if ( myFixIntersectingEdgesMode == -1 && ! ReorderOK )
408 myFixIntersectingEdgesMode = 0;
409 if ( FixSelfIntersection() ) Fixed = Standard_True;
410 FixReorder();
411 myFixIntersectingEdgesMode = savFixIntersectingEdgesMode;
412 }
413
414 if ( NeedFix ( myFixLackingMode, ReorderOK ) ) {
415 if ( FixLacking() ) Fixed = Standard_True;
416 }
417
418 // TEMPORARILY without special mode !!!
419 Handle(ShapeExtend_WireData) sbwd = WireData();
420 for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++)
98a43400 421 if ( myFixEdge->FixVertexTolerance (sbwd->Edge (iedge), Face()) )
ed5ca017 422 {
7fd59977 423 Fixed = Standard_True;
ed5ca017 424 }
425
426 if ( !Context().IsNull() )
427 UpdateWire();
7fd59977 428
429 return Fixed;
430}
431
432//=======================================================================
433//function : FixReorder
434//purpose :
435//=======================================================================
436
437Standard_Boolean ShapeFix_Wire::FixReorder()
438{
439 myStatusReorder = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
440 if ( ! IsLoaded() ) return Standard_False;
441
442 // fix in 3d
443 ShapeAnalysis_WireOrder sawo;
444 myAnalyzer->CheckOrder ( sawo, myClosedMode, Standard_True );
445
446 //:abv revolCuts.sat -23: in case of bi-periodic surface check case
447 // of reversed wire specifically. This is necessary because degenerated
448 // cases are possible when direct evaluation will give bad result.
449 Standard_Boolean isReorder = Standard_False;
450 if ( sawo.Status() != 0 &&
451 ! myAnalyzer->Surface().IsNull() &&
452 myAnalyzer->Surface()->Surface()->IsUPeriodic() &&
453 myAnalyzer->Surface()->Surface()->IsVPeriodic() ) {
454 Handle(ShapeExtend_WireData) sbwd2 = new ShapeExtend_WireData;
455 for ( Standard_Integer i=WireData()->NbEdges(); i >=1; i-- )
456 sbwd2->Add ( WireData()->Edge(i) );
457 ShapeAnalysis_WireOrder sawo2;
458 ShapeAnalysis_Wire analyzer2 ( sbwd2, myAnalyzer->Face(), Precision() );
459 analyzer2.CheckOrder ( sawo2, myClosedMode, Standard_True );
460 if ( ( sawo2.Status() >=0 && sawo2.Status() < sawo.Status() ) ||
461 ( sawo.Status() <0 && sawo2.Status() > sawo.Status() ) ) {
462 WireData()->Init ( sbwd2 );
463 sawo = sawo2;
464 isReorder = Standard_True;
465 }
466 }
467
468 FixReorder ( sawo );
469
470 if ( LastFixStatus ( ShapeExtend_FAIL ) )
471 myStatusReorder |= ShapeExtend::EncodeStatus ( LastFixStatus ( ShapeExtend_FAIL1 ) ?
472 ShapeExtend_FAIL1 : ShapeExtend_FAIL2 );
473 if ( ! LastFixStatus ( ShapeExtend_DONE )&& !isReorder ) return Standard_False;
474
475 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
476 if ( sawo.Status() ==2 || sawo.Status() ==-2 )
477 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
478 if ( sawo.Status() <0 )
479 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
673693f1 480 if ( sawo.Status() == 3)
481 myStatusReorder |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//only shifted
7fd59977 482 return Standard_True;
483}
484
485//=======================================================================
486//function : FixSmall
487//purpose :
488//=======================================================================
489
490Standard_Integer ShapeFix_Wire::FixSmall (const Standard_Boolean lockvtx,
491 const Standard_Real precsmall)
492{
493 myStatusSmall = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
494 if ( ! IsLoaded() ) return Standard_False;
495
496 for ( Standard_Integer i = NbEdges(); i >0; i-- ) {
497 FixSmall ( i, lockvtx, precsmall );
498 myStatusSmall |= myLastFixStatus;
499 }
999d2599 500
7fd59977 501 return StatusSmall ( ShapeExtend_DONE );
502
503}
504
505//=======================================================================
506//function : FixConnected
507//purpose :
508//=======================================================================
509
510Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Real prec)
511{
512 myStatusConnected = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
513 if ( ! IsLoaded() ) return Standard_False;
514
515 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
516 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
517 FixConnected ( i, prec );
518 myStatusConnected |= myLastFixStatus;
519 }
520
521 return StatusConnected ( ShapeExtend_DONE );
522}
523
524//=======================================================================
525//function : FixEdgeCurves
526//purpose :
527//=======================================================================
528
529Standard_Boolean ShapeFix_Wire::FixEdgeCurves()
530{
531 myStatusEdgeCurves = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
532 if ( ! IsLoaded() ) return Standard_False;
533 Standard_Boolean isReady = IsReady();
534
535 Handle(ShapeExtend_WireData) sbwd = WireData();
536 Standard_Integer i, nb = sbwd->NbEdges();
537 TopoDS_Face face = Face();
a9dde4a3 538 Handle(ShapeFix_Edge) theAdvFixEdge = myFixEdge;
7fd59977 539 if (theAdvFixEdge.IsNull()) myFixReversed2dMode = Standard_False;
540
541 // fix revesred 2d / 3d curves
542 if ( isReady && NeedFix ( myFixReversed2dMode ) ) {
543 for ( i=1; i <= nb; i++ ) {
544 theAdvFixEdge->FixReversed2d ( sbwd->Edge(i), face );
545 if ( theAdvFixEdge->Status ( ShapeExtend_DONE ) )
546 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
547 if ( theAdvFixEdge->Status ( ShapeExtend_FAIL ) )
548 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
549 }
550 }
551
552 // add / remove pcurve
553 if ( isReady && NeedFix ( myFixRemovePCurveMode, Standard_False ) ) {
554 for ( i=1; i <= nb; i++ ) {
555 myFixEdge->FixRemovePCurve ( sbwd->Edge(i), face );
556 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
557 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
558 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
559 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
560 }
561 }
562
563 if ( isReady && NeedFix ( myFixAddPCurveMode ) ) {
564 Standard_Integer overdegen = 0; //:c0
565 for ( i=1; i <= nb; i++ ) {
566 myFixEdge->FixAddPCurve ( sbwd->Edge(i), face, sbwd->IsSeam(i),
567 myAnalyzer->Surface(), Precision() );
568 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
569 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
570 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
571 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
572
573 //if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 )
574 // && BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
575 if ( !sbwd->IsSeam(i) && myFixEdge->Status ( ShapeExtend_DONE2 ) ) {
576 // abv 24 Feb 00: trj3_s1-ac-214.stp #1631 etc.: try to split the edge in singularity
577 if ( ! Context().IsNull() ) {
578 ShapeBuild_Edge sbe;
579 TopoDS_Edge E = sbwd->Edge ( i );
580 ShapeAnalysis_Curve SAC;
581 Standard_Real a, b;
582 Handle(Geom_Curve) C = BRep_Tool::Curve ( E, a, b );
583 Handle(ShapeAnalysis_Surface) S = myAnalyzer->Surface();
584 Standard_Integer nbs = S->NbSingularities(MinTolerance());
585 GeomAdaptor_Curve GAC ( C, a, b );
586 TColStd_SequenceOfReal seq;
587 for (Standard_Integer j=1; j <= nbs; j++) {
588 Standard_Real Preci;
589 gp_Pnt2d pd1, pd2;
590 gp_Pnt P3d, pr;
591 Standard_Real par1, par2, split;
592 Standard_Boolean tmpUIsoDeg;
593 S->Singularity (j, Preci, P3d, pd1, pd2, par1, par2, tmpUIsoDeg);
594 if ( SAC.Project ( GAC, P3d, MinTolerance(), pr, split, Standard_True ) < Max(Preci,MinTolerance()) ) {
595 if ( split - a > ::Precision::PConfusion() &&
596 b - split > ::Precision::PConfusion() ) {
597 Standard_Integer k;
598 for ( k=1; k <= seq.Length(); k++ ) {
599 if ( split < seq(k)-::Precision::PConfusion() ) {
600 seq.InsertBefore ( k, split );
601 break;
602 }
603 else if ( split < seq(k)+::Precision::PConfusion() ) break;
604 }
605 if ( k > seq.Length() ) seq.Append ( split );
606 }
607 }
608 }
609 if ( seq.Length() >0 ) { // supposed that edge is SP
0797d9d3 610#ifdef OCCT_DEBUG
04232180 611 std::cout << "Edge going over singularity detected; splitted" << std::endl;
7fd59977 612#endif
3163e9fd 613 Standard_Boolean isFwd = ( E.Orientation() == TopAbs_FORWARD );
614 E.Orientation ( TopAbs_FORWARD );
615
616 //if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
617 // sbe.RemovePCurve ( E, face );
618
619 //10.04.2003 skl for using trimmed lines as pcurves
620 ShapeAnalysis_Edge sae;
621 if( BRep_Tool::SameParameter(sbwd->Edge(i)) )
622 sbe.RemovePCurve ( E, face );
623 else {
624 if(sae.HasPCurve(E,face)) {
625 Handle(Geom2d_Curve) C2d;
626 Standard_Real fp2d,lp2d;
627 if(sae.PCurve(E,face,C2d,fp2d,lp2d)) {
628 if( !C2d->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)) )
629 sbe.RemovePCurve(E,face);
630 }
631 }
632 }
633
634// myFixEdge->FixSameParameter ( E ); // to ensure SameRange & SP
635 BRep_Builder B;
636 TopoDS_Vertex V1, V2, V;
637 //ShapeAnalysis_Edge sae;
638 V1 = sae.FirstVertex ( E );
639 V2 = sae.LastVertex ( E );
640
641 Handle(ShapeExtend_WireData) sw = new ShapeExtend_WireData;
642 for ( Standard_Integer k=0; k <= seq.Length(); k++ )
643 {
644 Standard_Real split = ( k < seq.Length() ? seq(k+1) : b );
645 if ( k < seq.Length() )
646 {
647 B.MakeVertex ( V, C->Value(split), BRep_Tool::Tolerance(E) );
648 //try increase tolerance before splitting
649 Standard_Real aDist = BRep_Tool::Pnt(V1).Distance(BRep_Tool::Pnt(V));
650 if (aDist < BRep_Tool::Tolerance(V1) * 1.01) {
651 B.UpdateVertex(V1, Max(aDist, BRep_Tool::Tolerance(V1)));
652 a = split;
653 V1 = V;
654 continue;
655 }
656 else
657 {
658 aDist = BRep_Tool::Pnt(V2).Distance(BRep_Tool::Pnt(V));
659 if (aDist < BRep_Tool::Tolerance(V2) * 1.01) {
660 B.UpdateVertex(V, Max(aDist, BRep_Tool::Tolerance(V2)));
661 b = split;
662 V2 = V;
663 continue;
7fd59977 664 }
3163e9fd 665 }
666 }
667 else
668 {
669 V = V2;
670 }
7fd59977 671
3163e9fd 672 TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
673 if( BRep_Tool::SameParameter(sbwd->Edge(i)) ) {
674 //TopoDS_Edge edge = sbe.CopyReplaceVertices ( E, V1, V );
675 B.Range ( edge, a, split );
676 sw->Add ( edge );
677 }
678 else {
679 //TopoDS_Edge edge = sbe.CopyReplaceVertices(sbwd->Edge(i),V1,V);
680 Handle(ShapeAnalysis_TransferParameters) sftp =
681 new ShapeAnalysis_TransferParameters(E,face);
682 sftp->TransferRange(edge, a, split, Standard_False);
683 sw->Add(edge);
684 }
685 //sw->Add(edge);
686 a = split;
687 V1 = V;
688 }
689 if ( ! isFwd ) {
690 sw->Reverse();
691 E.Orientation ( TopAbs_REVERSED );
692 }
693 Context()->Replace ( E, sw->Wire() );
694 UpdateWire();
695 nb = sbwd->NbEdges();
696 i--;
697 continue;
698 }
7fd59977 699 }
700
701 overdegen = i;
702 }
703 }
704
705 //:c0 abv 20 Feb 98: treat case of curve going over degenerated pole and seam
706 if ( overdegen && myAnalyzer->Surface()->IsUClosed(Precision()) ) {
707 ShapeBuild_Edge sbe;
708 Standard_Real URange, SUF, SUL, SVF, SVL;
709 myAnalyzer->Surface()->Bounds(SUF, SUL, SVF, SVL);
710 URange = (Abs(SUL - SUF));
711 gp_XY vec(0,0);
712 ShapeAnalysis_Edge sae;
713 Standard_Integer k;
714 for ( k = 1; k <= nb; k++) {
715 Standard_Real cf, cl;
716 Handle(Geom2d_Curve) c2d;
717 if ( ! sae.PCurve ( sbwd->Edge(k), face, c2d, cf, cl, Standard_True ) ) break;
718 vec += c2d->Value(cl).XY() - c2d->Value(cf).XY();
719 }
720 if ( k > nb && Abs ( Abs ( vec.X() ) - URange ) < 0.1 * URange ) {
721 sbe.RemovePCurve (sbwd->Edge ( overdegen ), face);
722 myFixEdge->Projector()->AdjustOverDegenMode() = Standard_False;
723 myFixEdge->FixAddPCurve ( sbwd->Edge(overdegen), face, sbwd->IsSeam(overdegen), myAnalyzer->Surface(), Precision());
724 }
0797d9d3 725#ifdef OCCT_DEBUG
04232180 726 std::cout << "Edge going over singularity detected; pcurve adjusted" << std::endl;
7fd59977 727#endif
728 }
729 }
730
731 // add / remove pcurve
732 if ( isReady && NeedFix ( myFixRemoveCurve3dMode, Standard_False ) ) {
733 for ( i=1; i <= nb; i++ ) {
734 myFixEdge->FixRemoveCurve3d ( sbwd->Edge(i) );
735 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
736 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
737 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
738 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
739 }
740 }
741 if ( NeedFix ( myFixAddCurve3dMode ) ) {
742 for ( i=1; i <= nb; i++ ) {
743 myFixEdge->FixAddCurve3d ( sbwd->Edge(i) );
744 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
745 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
746 if ( myFixEdge->Status ( ShapeExtend_FAIL ) ) {
747 //:abv 29.08.01: Spatial_firex_lofting.sat: if 3d curve cannot
748 // be built because edge has no pcurves either, remove that edge
749 Handle(Geom2d_Curve) C;
750 Handle(Geom_Surface) S;
751 TopLoc_Location L;
dfc06d1f 752 Standard_Real first = 0., last = 0.;
7fd59977 753 BRep_Tool::CurveOnSurface ( sbwd->Edge(i), C, S, L, first, last );
dfc06d1f 754 if ( C.IsNull() || Abs (last - first) < Precision::PConfusion())
999d2599
D
755 {
756 SendWarning ( sbwd->Edge ( i ), Message_Msg ( "FixWire.FixCurve3d.Removed" ) );// Incomplete edge (with no pcurves or 3d curve) removed
7fd59977 757 sbwd->Remove ( i-- );
758 nb--;
759 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
22887d12 760 if (i == nb)
761 {
762 FixClosed (Precision());
763 }
764 else
765 {
766 FixConnected (i + 1, Precision());
767 }
7fd59977 768 }
769 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL5 );
770 }
771 }
772 }
773
774 // fix seam
775 if ( isReady && NeedFix ( myFixSeamMode, Standard_False ) ) {
776 for ( i=1; i <= nb; i++ ) {
777 FixSeam ( i );
778 if ( LastFixStatus ( ShapeExtend_DONE ) )
779 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
780 if ( LastFixStatus ( ShapeExtend_FAIL ) )
781 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL6 );
782 }
783 }
784
785 // fix shifted
786 if ( isReady && NeedFix ( myFixShiftedMode ) ) {
787 FixShifted();
788 if ( LastFixStatus ( ShapeExtend_DONE ) )
789 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
790 if ( LastFixStatus ( ShapeExtend_FAIL ) )
791 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL7 );
792 }
793
794 // fix same parameter
ed5ca017 795 if ( isReady && NeedFix ( myFixSameParameterMode ) ){
7fd59977 796 for ( i=1; i <= nb; i++ ) {
797 // skl 28.10.2004 for OCC6366 - check SameRange
798 ShapeAnalysis_Edge sae;
799 Standard_Real First, Last;
800 Handle(Geom_Curve) tmpc3d = BRep_Tool::Curve(sbwd->Edge(i), First, Last);
801 if(sae.HasPCurve(sbwd->Edge(i),face)) {
802 Handle(Geom2d_Curve) C2d;
803 Standard_Real fp2d,lp2d;
4e882c71 804 if(sae.PCurve(sbwd->Edge(i),face,C2d,fp2d,lp2d, Standard_False)) {
7fd59977 805 if( fabs(First-fp2d)>Precision::PConfusion() ||
4e882c71 806 fabs(Last-lp2d)>Precision::PConfusion() )
807 {
7fd59977 808 BRep_Builder B;
809 B.SameRange(sbwd->Edge(i),Standard_False);
810 }
4e882c71 811 else if(!sae.CheckPCurveRange(First, Last, C2d))
812 {
813 //Replace pcurve
814 TopLoc_Location L;
815 const Handle(Geom_Surface)& S = BRep_Tool::Surface(face, L);
816 ShapeBuild_Edge().RemovePCurve (sbwd->Edge(i), S, L);
817 myFixEdge->FixAddPCurve ( sbwd->Edge(i), face, sbwd->IsSeam(i),
818 myAnalyzer->Surface(), Precision() );
819 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
820 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
821 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
822 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
823 }
7fd59977 824 }
825 }
98a43400 826 myFixEdge->FixSameParameter ( sbwd->Edge(i), Face());
7fd59977 827 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
828 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
829 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
830 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
831 }
832 }
ed5ca017 833
7fd59977 834 //:abv 10.06.02: porting C40 -> dev (CC670-12608.stp): moved from Perform()
835 // Update with face is needed for plane surfaces (w/o stored pcurves)
ed5ca017 836 if ( NeedFix ( myFixVertexToleranceMode ) )
837 {
838 for ( i=1; i <= nb; i++)
839 {
98a43400 840 myFixEdge->FixVertexTolerance (sbwd->Edge (i), Face());
7fd59977 841 if ( myFixEdge->Status ( ShapeExtend_DONE ) )
ed5ca017 842 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
7fd59977 843 if ( myFixEdge->Status ( ShapeExtend_FAIL ) )
ed5ca017 844 myStatusEdgeCurves |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL8 );
7fd59977 845 }
ed5ca017 846 if (!Context().IsNull() )
847 UpdateWire();
7fd59977 848 }
849
ed5ca017 850
7fd59977 851 return StatusEdgeCurves ( ShapeExtend_DONE );
852}
853
854//=======================================================================
855//function : FixDegenerated
856//purpose :
857//=======================================================================
858
859Standard_Boolean ShapeFix_Wire::FixDegenerated()
860{
861 myStatusDegenerated = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
862 if ( ! IsReady() ) return Standard_False;
863
864// if ( ! myAnalyzer->Surface()->HasSingularities ( Precision() ) ) return;
865
866 Standard_Integer lastcoded = -1, prevcoded = 0;
867 Standard_Integer stop = ( myClosedMode ? 0 : 1 );
868 for ( Standard_Integer i = NbEdges(); i > stop; i-- ) {
869 FixDegenerated ( i );
870 myStatusDegenerated |= myLastFixStatus;
871 //:r0 abv 19 Mar 99: PRO7226.stp #489490: remove duplicated degenerated edges
872 Standard_Integer coded = ( LastFixStatus ( ShapeExtend_DONE2 ) ? 1 : 0 );
873 if ( lastcoded ==-1 ) lastcoded = coded;
874 if ( coded && ( prevcoded || ( i ==1 && lastcoded ) ) && NbEdges() >1 ) {
875 Handle(ShapeExtend_WireData) sbwd = WireData();
876 BRep_Builder B;
877 sbwd->Remove ( i );
878 if ( ! prevcoded ) i = NbEdges();
879 B.Degenerated ( sbwd->Edge ( i++ ), Standard_False );
880 prevcoded = 0;
881 }
882 else prevcoded = coded;
883 }
7fd59977 884
885 return StatusDegenerated ( ShapeExtend_DONE );
886}
887
888
889//=======================================================================
890//function : FixSelfIntersection
891//purpose : Applies FixSelfIntersectingEdge and FixIntersectingEdges
892// and removes wrong edges
893//=======================================================================
894
895Standard_Boolean ShapeFix_Wire::FixSelfIntersection()
896{
897 myStatusSelfIntersection = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
898 if ( ! IsReady() ) return Standard_False;
899
900 Handle(ShapeExtend_WireData) sbwd = WireData();
901 Standard_Integer nb = sbwd->NbEdges();
902
903 if ( NeedFix ( myFixSelfIntersectingEdgeMode ) ) {
904 if (myRemoveLoopMode<1)
905 for ( Standard_Integer num=1; num <=nb; num++ )
906 {
907 FixSelfIntersectingEdge ( num );
908 myStatusSelfIntersection |= myLastFixStatus;
909 }
910 else if (myRemoveLoopMode==1)
911 {
912 for ( Standard_Integer num=1; num <=nb; num++ )
913 {
914 FixSelfIntersectingEdge ( num );
915 myStatusSelfIntersection |= myLastFixStatus;
916 if(nb<sbwd->NbEdges()) num--;
917 nb = sbwd->NbEdges();
918 }
919 FixClosed(Precision());
920 }
921 }
922
53446383 923 if ( NeedFix ( myFixIntersectingEdgesMode ) )
924 {
7fd59977 925 Standard_Integer num = ( myClosedMode ? 1 : 2 );
53446383 926 for ( ; nb >1 && num <= nb; num++ )
927 {
7fd59977 928 FixIntersectingEdges ( num );
929 if ( LastFixStatus ( ShapeExtend_FAIL1 ) )
53446383 930 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
7fd59977 931 if ( LastFixStatus ( ShapeExtend_FAIL2 ) )
53446383 932 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
7fd59977 933 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) continue;
934
935 if ( LastFixStatus ( ShapeExtend_DONE1 ) )
53446383 936 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
7fd59977 937 if ( LastFixStatus ( ShapeExtend_DONE2 ) )
53446383 938 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
7fd59977 939 if(LastFixStatus (ShapeExtend_DONE6))
53446383 940 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
7fd59977 941
53446383 942 if ( /*! myTopoMode ||*/ nb < 3 )
943 {
3163e9fd 944 //#86 rln 22.03.99 sim2.igs, entity 4292: After fixing of self-intersecting
945 //BRepCheck finds one more self-intersection not found by ShapeAnalysis
946 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
947
948 // if the tolerance was modified we should recheck the result, if it was enough
95a39468 949 if ( LastFixStatus ( ShapeExtend_DONE7 ) ) //num--;
950 FixIntersectingEdges ( num );
3163e9fd 951 continue;
7fd59977 952 }
953
954 if ( LastFixStatus ( ShapeExtend_DONE4 ) ) sbwd->Remove ( num );
955 if ( LastFixStatus ( ShapeExtend_DONE3 ) ) sbwd->Remove ( num >1 ? num-1 : nb+num-1 );
956 if ( LastFixStatus ( ShapeExtend_DONE4 ) ||
53446383 957 LastFixStatus ( ShapeExtend_DONE3 ) )
958 {
959 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
960 num = ( myClosedMode ? 1 : 2 );
961 nb = sbwd->NbEdges();
0797d9d3 962#ifdef OCCT_DEBUG
04232180 963 std::cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Edge removed" << std::endl;
7fd59977 964#endif
965 }
53446383 966 else
967 {
968 //#86 rln 22.03.99
969 //%15 pdn 06.04.99 repeat until fixed CTS18546-2 entity 777
970 FixIntersectingEdges ( num );
971 /*if ( LastFixStatus ( ShapeExtend_DONE7 ) )*/
3163e9fd 972 // Always revisit the fixed edge
95a39468 973 //num--;
7fd59977 974 }
975 }
53446383 976 if ( !Context().IsNull())
977 UpdateWire();
7fd59977 978 }
ed5ca017 979
53446383 980
7fd59977 981 //pdn 17.03.99 S4135 to avoid regression fixing not adjacent intersection
982 if ( NeedFix ( myFixNonAdjacentIntersectingEdgesMode ) ) {
983
984 ShapeFix_IntersectionTool ITool(Context(),Precision());
985 Standard_Integer NbSplit=0, NbCut=0,NbRemoved=0;
986 if(ITool.FixSelfIntersectWire(sbwd,myAnalyzer->Face(),NbSplit,NbCut,NbRemoved)) {
987 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );//gka 06.09.04
988 }
989 if( NbSplit>0 || NbRemoved>0 ) {
990 if(NbRemoved>0) myStatusRemovedSegment = Standard_True;
991 //Load(sbwd); commented by skl 29.12.2004 for OCC7624, instead this
992 // string inserted following three strings:
993 myAnalyzer->Load ( sbwd );
994 if ( ! Context().IsNull() ) UpdateWire();
995 myShape.Nullify();
996 }
0797d9d3 997#ifdef OCCT_DEBUG
7fd59977 998 if (StatusSelfIntersection (ShapeExtend_DONE5))
04232180 999 std::cout<<"Warning: ShapeFix_Wire::FixIntersection: Non-adjacent intersection fixed (split-"
1000 <<NbSplit<<", cut-"<<NbCut<<", removed-"<<NbRemoved<<")"<<std::endl;
7fd59977 1001#endif
1002
1003/*
1004 Bnd_Array1OfBox2d boxes(1,nb);
1005 TopLoc_Location L;
1006 const Handle(Geom_Surface)& S = BRep_Tool::Surface(Face(), L);
1007 Handle(Geom2d_Curve) c2d;
1008 Standard_Real cf,cl;
1009 ShapeAnalysis_Edge sae;
1010 for(Standard_Integer i = 1; i <= nb; i++){
1011 TopoDS_Edge E = sbwd->Edge (i);
1012 if(sae.PCurve (E,S,L,c2d,cf,cl,Standard_False)) {
1013 Bnd_Box2d box;
1014 Geom2dAdaptor_Curve gac;
1015 Standard_Real aFirst = c2d->FirstParameter();
1016 Standard_Real aLast = c2d->LastParameter();
1017 if(c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))
1018 && (cf < aFirst || cl > aLast)) {
1019 //pdn avoiding problems with segment in Bnd_Box
1020 gac.Load(c2d);
1021 }
1022 else
1023 gac.Load(c2d,cf,cl);
1024 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
1025 boxes(i) = box;
1026 }
1027 }
1028
1029 Standard_Boolean isFail = Standard_False, isDone = Standard_False;
1030 for(Standard_Integer num1 = 1; num1 < nb-1; num1++) {
1031 Standard_Integer fin = (num1 == 1 ? nb-1 : nb);
1032 for(Standard_Integer num2 = num1+2; num2 <= fin; num2++)
1033 if(!boxes(num1).IsOut(boxes(num2))){
1034 FixIntersectingEdges (num1, num2);
1035 isFail |= LastFixStatus ( ShapeExtend_FAIL1 );
1036 isDone |= LastFixStatus ( ShapeExtend_DONE1 );
1037 }
1038 }
1039
1040 if(isFail)
1041 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1042 if(isDone)
1043 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
0797d9d3 1044#ifdef OCCT_DEBUG
7fd59977 1045 if (StatusSelfIntersection (ShapeExtend_DONE5))
04232180 1046 std::cout << "Warning: ShapeFix_Wire::FixSelfIntersection: Non ajacent intersection fixed" << std::endl;
7fd59977 1047#endif
1048*/
1049 }
1050
7fd59977 1051 return StatusSelfIntersection ( ShapeExtend_DONE );
1052}
1053
1054
1055//=======================================================================
1056//function : FixLacking
1057//purpose :
1058//=======================================================================
1059
1060Standard_Boolean ShapeFix_Wire::FixLacking ( const Standard_Boolean force )
1061{
1062 myStatusLacking = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1063 if ( ! IsReady() ) return Standard_False;
1064
1065 Standard_Integer start = ( myClosedMode ? 1 : 2 );
1066 for ( Standard_Integer i = start; i <= NbEdges(); i++ ) {
1067 FixLacking ( i, force );
1068 myStatusLacking |= myLastFixStatus;
1069 }
1070
1071 return StatusLacking ( ShapeExtend_DONE );
1072}
1073
1074
1075//=======================================================================
1076//function : FixClosed
1077//purpose :
1078//=======================================================================
1079
1080Standard_Boolean ShapeFix_Wire::FixClosed (const Standard_Real prec)
1081{
1082 myStatusClosed = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1083 if ( ! IsLoaded() || NbEdges() <1 ) return Standard_False;
1084
1085 FixConnected ( 1, prec );
1086 if ( LastFixStatus ( ShapeExtend_DONE ) )
1087 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1088 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1089 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1090
1091 FixDegenerated ( 1 );
1092 if ( LastFixStatus ( ShapeExtend_DONE ) )
1093 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1094 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1095 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1096
1097 FixLacking ( 1 );
1098 if ( LastFixStatus ( ShapeExtend_DONE ) )
1099 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1100 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1101 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1102
1103 return StatusClosed ( ShapeExtend_DONE );
1104}
1105
1106
1107//#######################################################################
1108// Fixing methods of advanced level
1109//#######################################################################
1110
1111//=======================================================================
1112//function : FixReorder
1113//purpose :
1114//=======================================================================
1115
1116Standard_Boolean ShapeFix_Wire::FixReorder (const ShapeAnalysis_WireOrder& wi)
1117{
1118 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1119 if ( ! IsLoaded() ) return Standard_False;
1120
1121 Standard_Integer status = wi.Status();
1122 if ( status ==0 ) return Standard_False;
1123 if ( status <=-10 ) {
1124 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1125 return Standard_False;
1126 }
1127
1128 Handle(ShapeExtend_WireData) sbwd = WireData();
1129 Standard_Integer i, nb = sbwd->NbEdges();
1130 if ( nb != wi.NbEdges() ) {
1131 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1132 return Standard_False;
1133 }
1134 // D abord on protege
1135 for (i = 1; i <= nb; i ++) {
1136 if ( wi.Ordered(i) == 0 ) {
1137 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1138 return Standard_False;
1139 }
1140 }
1141
1142 Handle(TopTools_HSequenceOfShape) newedges = new TopTools_HSequenceOfShape();
1143 for ( i=1; i <= nb; i++ )
1144 newedges->Append ( sbwd->Edge ( wi.Ordered(i) ) );
1145 for ( i=1; i <= nb; i++ )
1146 sbwd->Set ( TopoDS::Edge ( newedges->Value(i) ), i );
1147
1148 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1149 return Standard_True;
1150}
1151
1152
1153//=======================================================================
1154//function : FixSmall
1155//purpose :
1156//=======================================================================
1157
1158Standard_Boolean ShapeFix_Wire::FixSmall (const Standard_Integer num,
1159 const Standard_Boolean lockvtx,
1160 const Standard_Real precsmall)
1161{
1162 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1163 if ( ! IsLoaded() || NbEdges() <=1 ) return Standard_False;
1164
1165 // analysis:
a9dde4a3 1166 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = myAnalyzer;
7fd59977 1167 if (theAdvAnalyzer.IsNull()) return Standard_False;
1168 Standard_Integer n = ( num >0 ? num : NbEdges() );
1169 theAdvAnalyzer->CheckSmall ( n, precsmall );
1170 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1171 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1172//:n2 return Standard_False;
1173 }
1174
1175 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1176
1177 // OUI cette edge est NULLE
1178
1179 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) ) {
1180 // edge is small, but vertices are not the same..
1181 if ( lockvtx || ! myTopoMode ) {
1182 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
1183 return Standard_False;
1184 }
1185 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1186 }
1187 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1188
1189 // action: remove edge
999d2599
D
1190 if ( ! Context().IsNull() )
1191 Context()->Remove(WireData()->Edge(n));
1192 SendWarning ( WireData()->Edge ( n ), Message_Msg ( "FixAdvWire.FixSmall.MSG0" ) ); //Small edge(s) removed
7fd59977 1193 WireData()->Remove ( n );
1194
1195 // call FixConnected in the case if vertices of the small edge were not the same
1196 if ( LastFixStatus ( ShapeExtend_DONE2 ) ) {
1197 Standard_Integer savLastFixStatus = myLastFixStatus;
1198 //#43 rln 20.11.98 S4054 CTS18544 entity 21734 removing last edge
1199 FixConnected ( n <= NbEdges() ? n : 1, precsmall );
1200 if ( LastFixStatus ( ShapeExtend_FAIL ) )
1201 savLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
1202 myLastFixStatus = savLastFixStatus;
1203 }
999d2599 1204
7fd59977 1205 return Standard_True;
1206}
1207
1208
1209//=======================================================================
1210//function : FixConnected
1211//purpose :
1212//=======================================================================
1213
1214Standard_Boolean ShapeFix_Wire::FixConnected (const Standard_Integer num,
1215 const Standard_Real prec)
1216{
1217 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1218 if ( ! IsLoaded() || NbEdges() <=0 ) return Standard_False;
1219
1220 // analysis
1221
1222 myAnalyzer->CheckConnected ( num, prec < 0 ? MaxTolerance() : prec );
1223 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
1224 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1225 }
1226 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1227
1228 // action: replacing vertex
1229
1230 Handle(ShapeExtend_WireData) sbwd = WireData();
1231 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1232 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1233 TopoDS_Edge E1 = sbwd->Edge(n1);
1234 TopoDS_Edge E2 = sbwd->Edge(n2);
1235
1236 ShapeAnalysis_Edge sae;
1237 TopoDS_Vertex V1 = sae.LastVertex (E1);
1238 TopoDS_Vertex V2 = sae.FirstVertex (E2);
1239 TopoDS_Vertex V;
1240
1241 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ) { // absolutely confused
1242 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1243 //#40 rln 18.11.98 S4054 BUC60035 entity 2393 (2-nd sub-curve is edge with the same vertex)
1244 if ( V2.IsSame ( sae.LastVertex (E2) ) ) {
1245 V = V2;
1246 if ( ! Context().IsNull() )
1247 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1248 }
1249 else {
1250 V = V1;
1251 if ( ! Context().IsNull() )
1252 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1253 }
1254 }
1255 else { // on moyenne ...
1256 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) )
1257 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1258 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1259 ShapeBuild_Vertex sbv;
1260 V = sbv.CombineVertex ( V1, V2, 1.0001 );
1261 if ( ! Context().IsNull() ) {
1262 Context()->Replace ( V1, V.Oriented(V1.Orientation()) );
1263 Context()->Replace ( V2, V.Oriented(V2.Orientation()) );
1264 }
1265 }
1266
1267 // replace vertices to a new one
1268 ShapeBuild_Edge sbe;
1269 if ( sbwd->NbEdges() <2 ) {
1270 if(E2.Free() && myTopoMode) {
1271 BRep_Builder B;
1272 B.Remove(E2,sae.FirstVertex(E2));
1273 B.Remove(E2,sae.LastVertex(E2));
1274 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1275 B.Add(E2,V.Oriented(TopAbs_REVERSED));
1276 }
1277 else {
1278 TopoDS_Edge tmpE = sbe.CopyReplaceVertices ( E2, V, V );
1279 sbwd->Set ( tmpE, n2 );
1280 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE);
1281 }
1282 }
1283 else {
1284 if(E2.Free() &&E1.Free() && myTopoMode) {
1285 BRep_Builder B;
1286 B.Remove(E2,sae.FirstVertex(E2));
1287 B.Add(E2,V.Oriented(TopAbs_FORWARD));
1288 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1289 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1290 B.Remove(E1,sae.LastVertex(E1));
1291 B.Add(E1,V.Oriented(TopAbs_REVERSED));
1292 }
1293 }
1294 else {
1295 TopoDS_Edge tmpE2 = sbe.CopyReplaceVertices ( E2, V, TopoDS_Vertex() );
1296 sbwd->Set ( tmpE2, n2 );
1297 if ( ! Context().IsNull() ) Context()->Replace(E2,tmpE2);
1298 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 ) ||
1299 sae.FirstVertex (E2).IsSame (sae.LastVertex (E2)) ) {
1300 TopoDS_Edge tmpE1 = sbe.CopyReplaceVertices ( E1, TopoDS_Vertex(), V );
1301 sbwd->Set (tmpE1, n1 );
1302 if ( ! Context().IsNull() ) Context()->Replace(E1,tmpE1);
1303 }
1304 }
1305 }
1306 if ( ! Context().IsNull() ) UpdateWire();
1307
1308 return Standard_True;
1309}
1310
1311
1312//=======================================================================
1313//function : FixSeam
1314//purpose :
1315//=======================================================================
1316
1317Standard_Boolean ShapeFix_Wire::FixSeam (const Standard_Integer num)
1318{
1319 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1320 if ( ! IsReady() ) return Standard_False;
1321
1322 Handle(Geom2d_Curve) C1, C2;
1323 Standard_Real cf, cl;
1324 if ( ! myAnalyzer->CheckSeam (num, C1, C2, cf, cl) ) return Standard_False;
1325
1326 BRep_Builder B;
1327 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
1328 B.UpdateEdge (E, C2,C1, Face(), 0.); //:S4136: BRep_Tool::Tolerance(E)
1329 B.Range (E, Face(),cf,cl);
1330 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1331
1332 return Standard_True;
1333}
1334
1335//=======================================================================
1336//function : FixShifted
1337//purpose : fix parametric curves which may be shifted
1338// to whole parametric range of closed surface as result of recomputing
1339// from 3d representation.
1340// This can be a curve on a seam or near it.
1341// This function is to be called before FixDegenerated.
1342// LIMITATION: this function cannot fix cases when, e.g., closed wire is
1343// composed of two meridians of the sphere and one of them is seam.
1344// NOTE: wire is supposed to be closed and sorted !
1345//=======================================================================
1346
1347//:p4 abv 23.02.99: PRO9234 #15720: update UV points of edge
1348static void UpdateEdgeUVPoints (TopoDS_Edge &E, const TopoDS_Face &F)
1349{
1350 Standard_Real first, last;
1351 BRep_Tool::Range ( E, F, first, last );
1352 BRep_Builder().Range ( E, F, first, last );
1353}
1354
1355
1356//=======================================================================
1357//function : FixShifted
1358//purpose :
1359//=======================================================================
1360
1361Standard_Boolean ShapeFix_Wire::FixShifted()
1362{
1363 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1364 if ( ! IsReady() ) return Standard_False;
1365
1366 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
1367 //#78 rln 12.03.99 S4135: checking spatial closure with Precision
1368 Standard_Boolean uclosed = surf->IsUClosed(Precision());
1369 Standard_Boolean vclosed = surf->IsVClosed(Precision()) || surf->Surface()->IsKind (STANDARD_TYPE(Geom_SphericalSurface));
1370 //#67 rln 01.03.99 S4135: ims010.igs entity D11900 (2D contour is 2*PI higher than V range [-pi/2,p/2])
1371
1372 // PTV 26.06.2002 begin
1373 // CTS18546-2.igs entity 2222: base curve is periodic and 2dcurve is shifted
1374 Standard_Boolean IsVCrvClosed = Standard_False;
1375 Standard_Real VRange = 1.;
1376 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
1377 Handle(Geom_SurfaceOfRevolution) aSurOfRev = Handle(Geom_SurfaceOfRevolution)::DownCast(surf->Surface());
1378 Handle(Geom_Curve) aBaseCrv = aSurOfRev->BasisCurve();
1379 while ( (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve))) ||
1380 (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) ) {
1381 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_OffsetCurve)))
1382 aBaseCrv = Handle(Geom_OffsetCurve)::DownCast(aBaseCrv)->BasisCurve();
1383 if (aBaseCrv->IsKind(STANDARD_TYPE(Geom_TrimmedCurve)))
1384 aBaseCrv = Handle(Geom_TrimmedCurve)::DownCast(aBaseCrv)->BasisCurve();
1385 }
1386 if (aBaseCrv->IsPeriodic()) {
1387 vclosed = Standard_True;
1388 VRange = aBaseCrv->Period();
1389 IsVCrvClosed = Standard_True;
0797d9d3 1390#ifdef OCCT_DEBUG
04232180 1391 std::cout << "Warning: ShapeFix_Wire::FixShifted set vclosed True for Surface of Revolution" << std::endl;
7fd59977 1392#endif
1393 }
1394 }
1395 // PTV 26.06.2002 end
1396 if ( ! uclosed && ! vclosed ) return Standard_False;
1397
1398 Standard_Real URange, /*VRange,*/ SUF, SUL, SVF, SVL;
1399 surf->Surface()->Bounds ( SUF, SUL, SVF, SVL );
1400 Standard_Real SUMid, SVMid;
1401 SUMid = 0.5*(SUF+SUL);
1402 SVMid = 0.5*(SVF+SVL);
1403 if (uclosed) URange = Abs ( SUL - SUF );
1404 else URange = RealLast();
eafb234b 1405 if (!IsVCrvClosed) {
7fd59977 1406 if (vclosed) VRange = Abs ( SVL - SVF );
1407 else VRange = RealLast();
eafb234b 1408 }
7fd59977 1409 Standard_Real UTol = 0.2 * URange, VTol = 0.2 * VRange;
1410
1411 Handle(ShapeExtend_WireData) sbwdOring = WireData();
1412 ShapeAnalysis_Edge sae;
1413 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData;
1414 for ( Standard_Integer i=1; i <= sbwdOring->NbEdges(); i++ ) {
1415 TopoDS_Edge E1 = sbwdOring->Edge ( i );
1416 if ( BRep_Tool::Degenerated(E1) && !sae.HasPCurve(E1,Face()))
1417 continue;
1418
1419 sbwd->Add(E1);
1420 }
1421
1422 ShapeBuild_Edge sbe;
1423 Standard_Integer nb = sbwd->NbEdges();
8c2d3314 1424 Standard_Boolean end = (nb == 0), degstop = Standard_False;
7fd59977 1425 Standard_Integer stop = nb;
1426 Standard_Integer degn2 = 0;
1427 gp_Pnt pdeg;
1428 //pdn 17.12.98 r0901_ec 38237 to shift wire at 0
1429
1430 //GeomAdaptor_Surface& GAS = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface(); //SK
1431 Bnd_Box2d box;
1432 for ( Standard_Integer n2=1, n1=nb; ! end; n1 = n2++ ) {
1433 if ( n2 > nb ) n2 = 1;
1434 if ( n2 == stop ) end = Standard_True;
1435
1436 TopoDS_Edge E1 = sbwd->Edge ( n1 );
1437 TopoDS_Edge E2 = sbwd->Edge ( n2 );
1438
3163e9fd 1439 if ( BRep_Tool::Degenerated(E1) || BRep_Tool::Degenerated(E2) )
1440 {
1441 if ( ! degstop )
1442 {
1443 stop = n2;
1444 degstop = Standard_True;
1445 }
7fd59977 1446 continue;
1447 }
1448
1449 TopoDS_Vertex V = sae.FirstVertex ( E2 );
46aed280 1450 if (V.IsNull())
1451 continue;
1452
7fd59977 1453 gp_Pnt p = BRep_Tool::Pnt ( V );
1454
1d47d8d0 1455 Standard_Real a1 = 0., b1 = 0., a2 = 0., b2 = 0.;
7fd59977 1456 Handle(Geom2d_Curve) c2d1, c2d2;
1457
1458 //:abv 29.08.01: torCuts.sat: distinguish degeneration by U and by V;
1459 // only corresponding move is prohibited
1460// Standard_Boolean isDeg = surf->IsDegenerated ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ) );
1461 Standard_Integer isDeg = 0;
1462 gp_Pnt2d degP1, degP2;
1463 Standard_Real degT1, degT2;
1464 if ( surf->DegeneratedValues ( p, Max ( Precision(), BRep_Tool::Tolerance(V) ),
1465 degP1, degP2, degT1, degT2 ) )
1466 isDeg = ( Abs ( degP1.X() - degP2.X() ) > Abs ( degP1.Y() - degP2.Y() ) ? 1 : 2 );
1467
1468 // abv 23 Feb 00: UKI60107-6 210: additional check for near-degenerated case
1469 //smh#15 PRO19800. Check if the surface is surface of revolution.
6dfdbb7a 1470 if (surf->Surface()->IsKind (STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
7fd59977 1471 if ( ! isDeg && ! vclosed ) {
1472 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1473 gp_Pnt2d p1 ( SUF, c2d1->Value(b1).Y() );
1474 gp_Pnt2d p2 ( SUL, c2d1->Value(b1).Y() );
1475 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1476 ! 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
1477 isDeg = 1;
1478 }
1479 if ( ! isDeg && ! uclosed ) {
1480 if ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) continue;
1481 gp_Pnt2d p1 ( c2d1->Value(b1).X(), SVF );
1482 gp_Pnt2d p2 ( c2d1->Value(b1).X(), SVL );
1483 if ( surf->IsDegenerated ( p1, p2, MaxTolerance(), 10 ) &&
1484 ! 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
1485 isDeg = 2;
1486 }
1487 }
1488
3163e9fd 1489 if ( isDeg )
1490 {
1491 if ( ! degstop )
1492 {
1493 stop = n2;
1494 degstop = Standard_True;
1495 }
1496
1497 if ( ! degn2 )
1498 {
1499 degn2 = n2;
1500 pdeg = p;
7fd59977 1501 }
3163e9fd 1502 else
1503 {
1504 if ( pdeg.SquareDistance(p) < Precision() * Precision() )
1505 {
1506 degn2 = n2;
1507 //if ( stop < n2 ) { stop = n2; degstop = Standard_True; }
1508 }
1509 else
1510 {
1511 Standard_Real ax1 = 0., bx1 = 0., ax2 = 0., bx2 = 0.;
1512 Handle(Geom2d_Curve) cx1, cx2;
1513 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1514 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ||
1515 ! sae.PCurve ( sbwd->Edge ( degn2 >1 ? degn2-1 : nb ), Face(), cx1, ax1, bx1, Standard_True ) ||
1516 ! sae.PCurve ( sbwd->Edge ( degn2 ), Face(), cx2, ax2, bx2, Standard_True ) )
1517 {
1518 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1519 continue;
1520 }
1521 gp_Pnt2d pd1 = cx1->Value ( bx1 );
1522 gp_Pnt2d pd2 = cx2->Value ( ax2 );
1523 gp_Pnt2d pn1 = c2d1->Value ( b1 );
1524 gp_Pnt2d pn2 = c2d2->Value ( a2 );
1525 gp_Vec2d x(0.,0.); // shift vector
1526 Standard_Real period;
1527 if ( uclosed ) { x.SetX ( 1. ); period = URange; }
1528 else { x.SetY ( 1. ); period = VRange; }
1529 Standard_Real rot1 = ( pn1.XY() - pd2.XY() ) ^ x.XY();
1530 Standard_Real rot2 = ( pd1.XY() - pn2.XY() ) ^ x.XY();
1531 Standard_Real scld = ( pd2.XY() - pd1.XY() ) * x.XY();
1532 Standard_Real scln = ( pn2.XY() - pn1.XY() ) * x.XY();
1533 if ( rot1 * rot2 < -::Precision::PConfusion() &&
1534 scld * scln < -::Precision::PConfusion() &&
1535 Abs ( scln ) > 0.1 * period && Abs ( scld ) > 0.1 * period &&
1536 rot1 * scld > ::Precision::PConfusion() &&
1537 rot2 * scln > ::Precision::PConfusion() )
1538 {
1539 // abv 02 Mar 00: trying more sophisticated analysis (ie_exhaust-A.stp #37520)
1540 Standard_Real sign = ( rot2 >0 ? 1. : -1. );
1541 Standard_Real deep1 = Min ( sign * ( pn2.XY() * x.XY() ),
1542 Min ( sign * ( pd1.XY() * x.XY() ),
1543 Min ( sign * ( c2d2->Value(b2 ).XY() * x.XY() ),
1544 Min ( sign * ( cx1->Value(ax1).XY() * x.XY() ),
1545 Min ( sign * ( c2d2->Value(0.5*(a2 +b2 )).XY() * x.XY() ),
1546 sign * ( cx1->Value(0.5*(ax1+bx1)).XY() * x.XY() ) ) ) ) ) );
1547 Standard_Real deep2 = Max ( sign * ( pn1.XY() * x.XY() ),
1548 Max ( sign * ( pd2.XY() * x.XY() ),
1549 Max ( sign * ( c2d1->Value(a1 ).XY() * x.XY() ),
1550 Max ( sign * ( cx2->Value(bx2).XY() * x.XY() ),
1551 Max ( sign * ( c2d1->Value(0.5*(a1 +b1 )).XY() * x.XY() ),
1552 sign * ( cx2->Value(0.5*(ax2+bx2)).XY() * x.XY() ) ) ) ) ) );
1553 Standard_Real deep = deep2 - deep1; // estimated current size of wire by x
1554 // pdn 30 Oct 00: trying correct period [0,period] (trj5_k1-tc-203.stp #4698)
1555 Standard_Real dx = ShapeAnalysis::AdjustToPeriod ( deep, ::Precision::PConfusion(), period+::Precision::PConfusion());
1556 x *= ( scld >0 ? -dx : dx );
1557 //x *= ( Abs(scld-scln) > 1.5 * period ? 2. : 1. ) *
1558 // ( scld >0 ? -period : period );
1559 gp_Trsf2d Shift;
1560 Shift.SetTranslation ( x );
1561 for ( Standard_Integer k=degn2; ; k++ )
1562 {
1563 if ( k > nb ) k = 1;
1564 if ( k == n2 ) break;
1565 TopoDS_Edge edge = sbwd->Edge ( k );
1566 if ( ! sae.PCurve ( edge, Face(), cx1, ax1, bx1, Standard_True ) ) continue;
1567 //cx1->Transform ( Shift );
1568 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1569 Handle(Geom2d_Curve) cx1new = Handle(Geom2d_Curve)::DownCast(cx1->Transformed(Shift));
1570 sbe.ReplacePCurve(edge,cx1new,Face());
1571 UpdateEdgeUVPoints ( edge, Face() );
1572 }
1573 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
0797d9d3 1574#ifdef OCCT_DEBUG
04232180 1575 std::cout << "Info: ShapeFix_Wire::FixShifted(): bi - meridian case fixed" << std::endl;
7fd59977 1576#endif
3163e9fd 1577 continue;
1578 }
1579 //degn2 = n2; pdeg = p; // ie_exhaust-A.stp #37520
1580 }
7fd59977 1581 }
3163e9fd 1582/*
7fd59977 1583 // pdn to fix half sphere
1584 TopoDS_Vertex VE = sae.LastVertex ( E2 );
1585 gp_Pnt pe = BRep_Tool::Pnt ( VE );
1586 //pdn is second vertex on singular point ?
1587 if ( surf->IsDegenerated ( pe, Max ( Precision(), BRep_Tool::Tolerance(V) ) ) ) {
1588 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1589 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1590 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1591 continue;
1592 }
1593 gp_Pnt2d p2d1 = c2d1->Value ( b1 ), p2f = c2d2->Value ( a2 ), p2l = c2d2->Value ( b2 );
1594 Standard_Real pres2 = ::Precision::PConfusion();
1595 Standard_Real du = 0.,dv = 0.;
1596 //#79 rln 15.03.99 S4135: bmarkmdl.igs entity 633 (incorrectly oriented contour) check for gap
1597 if(uclosed&&(Abs(p2f.X()-p2l.X())<pres2)&&Abs(p2d1.X()-p2f.X())>GAS.UResolution(Precision())) {
1598 if((Abs(p2f.X()-SUF)<pres2)&&(p2f.Y()<p2l.Y()))
1599 du = URange;
1600 if((Abs(p2f.X()-SUL)<pres2)&&(p2f.Y()>p2l.Y()))
1601 du = -URange;
1602 }
1603 if(vclosed&&(Abs(p2f.Y()-p2l.Y())<pres2)&&Abs(p2d1.Y()-p2f.Y())>GAS.VResolution(Precision())) {
1604 if((Abs(p2f.Y()-SVF)<pres2)&&(p2f.X()>p2l.X()))
1605 dv = VRange;
1606 if((Abs(p2f.Y()-SVL)<pres2)&&(p2f.X()<p2l.X()))
1607 dv = -VRange;
1608 }
1609 if ( du ==0. && dv == 0. ) continue;
1610 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1611 gp_Trsf2d Shift;
1612 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1613 c2d2->Transform ( Shift );
1614 UpdateEdgeUVPoints ( E2, Face() );//rln 15.03.99 syntax correction :E1
1615 }
1616*/
1617//:abv 29.08.01: torCuts.sat: continue;
1618 }
1619
1620 if ( ( c2d1.IsNull() && ! sae.PCurve ( E1, Face(), c2d1, a1, b1, Standard_True ) ) ||
1621 ( c2d2.IsNull() && ! sae.PCurve ( E2, Face(), c2d2, a2, b2, Standard_True ) ) ) {
1622 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1623 continue;
1624 }
1625 gp_Pnt2d p2d1 = c2d1->Value ( b1 );
1626 gp_Pnt2d p2d2 = c2d2->Value ( a2 );
1627 box.Add ( p2d1 );
1628
1629 Standard_Real du=0., dv=0.;
1630 if ( uclosed && isDeg != 1 ) {
1631 Standard_Real dx = Abs ( p2d2.X() - p2d1.X() );
1632 if ( dx > URange - UTol )
1633 du = ShapeAnalysis::AdjustByPeriod ( p2d2.X(), p2d1.X(), URange );
1634 else if ( dx > UTol && stop == nb ) stop = n2; //:abv 29.08.01: torCuts2.stp
1635 }
1636 if ( vclosed && isDeg != 2 ) {
1637 Standard_Real dy = Abs ( p2d2.Y() - p2d1.Y() );
1638 if ( dy > VRange - VTol )
1639 dv = ShapeAnalysis::AdjustByPeriod ( p2d2.Y(), p2d1.Y(), VRange );
1640 else if ( dy > VTol && stop == nb ) stop = n2;
1641 }
1642 if ( du ==0. && dv == 0. ) continue;
1643
1644 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1645 gp_Trsf2d Shift;
1646 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1647 //c2d2->Transform ( Shift );
1648 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1649 Handle(Geom2d_Curve) c2d2new = Handle(Geom2d_Curve)::DownCast(c2d2->Transformed(Shift));
1650 sbe.ReplacePCurve(E2,c2d2new,Face());
1651 UpdateEdgeUVPoints ( E2, Face() );
1652 }
1653 if ( box.IsVoid() ) return Standard_False; //#3 smh 01.04.99. S4163: Overflow, when box is void.
1654
1655 Standard_Real umin, vmin, umax, vmax;
1656 box.Get ( umin, vmin, umax, vmax );
1657 if ( Abs ( umin + umax - SUF - SUL ) < URange &&
1658 Abs ( vmin + vmax - SVF - SVL ) < VRange &&
1659 ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
1660
1661 box.SetVoid();
1662 Standard_Integer n; // svv Jan11 2000 : porting on DEC
1663 for ( n=1; n <= nb; n++ ) {
1664 Standard_Real a, b;
1665 Handle(Geom2d_Curve) c2d;
1666 if ( ! sae.PCurve ( sbwd->Edge(n), Face(), c2d, a, b, Standard_True ) ) continue;
1667 box.Add ( c2d->Value ( a ) );
1668 box.Add ( c2d->Value ( 0.5 * ( a + b ) ) );
1669 }
1670 box.Get ( umin, vmin, umax, vmax );
1671
1672 Standard_Real du=0., dv=0.;
1673
1674 if ( uclosed ) {
1675 Standard_Real umid = 0.5 * ( umin + umax );
1676// du = ShapeAnalysis::AdjustToPeriod(umid, SUF, SUL);
1677 // PTV 26.06.2002 xloop torus-apple iges face mode
1678 du = ShapeAnalysis::AdjustByPeriod(umid, SUMid, URange);
1679 }
1680 if ( vclosed ) {
1681 Standard_Real vmid = 0.5 * ( vmin + vmax );
1682// dv = ShapeAnalysis::AdjustToPeriod(vmid, SVF, SVL);
1683 // PTV 26.06.2002 xloop torus-apple iges face mode
1684 dv = ShapeAnalysis::AdjustByPeriod(vmid, SVMid, VRange);
1685 }
1686
1687 if ( du ==0. && dv == 0. ) return Standard_True;
1688
1689 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1690
1691 gp_Trsf2d Shift;
1692 Shift.SetTranslation ( gp_Vec2d ( du, dv ) );
1693
1694 for ( n=1; n <= sbwdOring->NbEdges(); n++ ) {
1695 Standard_Real a, b;
1696 Handle(Geom2d_Curve) c2d;
1697 TopoDS_Edge ed = sbwdOring->Edge(n);
1698 if ( ! sae.PCurve ( ed, Face(), c2d, a, b, Standard_True ) ) continue;
1699 // skl 15.05.2002 for OCC208 (if few edges have reference to one pcurve)
1700 Handle(Geom2d_Curve) c2d2 = Handle(Geom2d_Curve)::DownCast(c2d->Transformed(Shift));
1701 sbe.ReplacePCurve(ed,c2d2,Face());
1702 UpdateEdgeUVPoints ( ed, Face() );
1703 }
1704 return Standard_True;
1705}
1706
1707//=======================================================================
1708//function : FixDegenerated
1709//purpose :
1710//=======================================================================
1711
1712Standard_Boolean ShapeFix_Wire::FixDegenerated (const Standard_Integer num)
1713{
1714 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
1715 if ( ! IsReady() ) return Standard_False;
1716
1717 // analysis
1718 gp_Pnt2d p2d1, p2d2;
1719 myAnalyzer->CheckDegenerated ( num, p2d1, p2d2 );
1720 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL1 ) ) {
1721 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
1722 }
1723 //: abv 29.08.01: torHalf2.sat: if edge was encoded as degenerated but
1724 // has no pcurve and no singularity is found at that point, remove it
1725 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL2 ) ) {
1726 WireData()->Remove ( num );
1727 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
1728 return Standard_True;
1729 }
1730 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
1731
1732 // action: create degenerated edge and insert it (or replace)
1733
1734 gp_Vec2d vect2d ( p2d1, p2d2 );
1735 gp_Dir2d dir2d ( vect2d );
1736 Handle(Geom2d_Line) line2d = new Geom2d_Line ( p2d1, dir2d );
1737
1738 TopoDS_Edge degEdge;
1739 BRep_Builder B;
1740 B.MakeEdge ( degEdge );
1741 B.Degenerated ( degEdge, Standard_True );
1742 B.UpdateEdge ( degEdge, line2d, Face(), ::Precision::Confusion() );
1743 B.Range ( degEdge, Face(), 0., vect2d.Magnitude() );
1744
1745 Handle(ShapeExtend_WireData) sbwd = WireData();
1746 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
1747 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
1748
1749 Standard_Boolean lack = myAnalyzer->LastCheckStatus ( ShapeExtend_DONE1 );
1750 Standard_Integer n3 = ( lack ? n2 : ( n2 < sbwd->NbEdges() ? n2+1 : 1 ) );
1751
1752 ShapeAnalysis_Edge sae;
1753 TopoDS_Vertex V1 = sae.LastVertex ( sbwd->Edge ( n1 ) );
1754 TopoDS_Vertex V2 = sae.FirstVertex ( sbwd->Edge ( n3 ) );
1755
1756 V1.Orientation(TopAbs_FORWARD);
1757 V2.Orientation(TopAbs_REVERSED);
1758 B.Add(degEdge,V1);
1759 B.Add(degEdge,V2);
1760 degEdge.Orientation(TopAbs_FORWARD);
1761
1762 if ( lack ) {
1763 sbwd->Add ( degEdge, n2 );
1764 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1765 }
1766 else {
1767 sbwd->Set ( degEdge, n2 );
1768 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1769 }
999d2599
D
1770
1771// commented to avoid extra messages
1772// SendWarning ( degEdge, Message_Msg ( "FixWire.FixDegenerated.MSG0" ) );// Degenerated edge(s) detected
1773
7fd59977 1774 return Standard_True;
1775}
1776
1777//=======================================================================
1778//function : FixSelfIntersectingEdge
1779//purpose : Tests edge for self-intersection and updates tolerance of vertex
1780// if intersection is found
1781// Returns True if tolerance was increased
1782//=======================================================================
1783
1784// Create edge on basis of E with new pcurve and call FixSP
1785// Return resulting tolerance and modified pcurve
1786static Standard_Boolean TryNewPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
1787 Handle(Geom2d_Curve) &c2d,
1788 Standard_Real &first,
1789 Standard_Real &last,
1790 Standard_Real &tol)
1791{
1792 Standard_Real f, l;
1793 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1794 if ( crv.IsNull() ) return Standard_False;
1795
1796 // make temp edge and compute tolerance
1797 BRepBuilderAPI_MakeEdge mkedge ( crv, f, l );
1798
1799 ShapeBuild_Edge SBE; //skl 17.07.2001
1800 SBE.SetRange3d(mkedge,f,l); //skl 17.07.2001
1801
1802 if ( ! mkedge.IsDone() ) return Standard_False;
1803
1804 TopoDS_Edge edge = mkedge;
1805 BRep_Builder B;
1806 B.UpdateEdge ( edge, c2d, face, 0. );
1807 B.Range ( edge, face, first, last );
1808 B.SameRange ( edge, Standard_False );
1809// no call to BRepLib: B.SameParameter ( edge, Standard_False );
1810
1811 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
98a43400 1812 sfe->FixSameParameter ( edge, face );
7fd59977 1813 c2d = BRep_Tool::CurveOnSurface ( edge, face, first, last );
1814 tol = BRep_Tool::Tolerance ( edge );
1815 return Standard_True;
1816}
1817
1818//:k3 abv 24 Dec 98: BUC50070 #26682 and #30087:
1819// Try to cut out the loop on the pcurve and make new pcurve by concatenating
1820// the parts.
1821// If result is not SameParameter with prec, does nothing and returns False
1822// Warning: resulting pcurve will be C0
1823
1824//=======================================================================
1825//function : howMuchPCurves
1826//purpose : OCC901
1827//=======================================================================
1828static Standard_Integer howMuchPCurves (const TopoDS_Edge &E)
1829{
1830 Standard_Integer count = 0;
1831 BRep_ListIteratorOfListOfCurveRepresentation itcr
1832 ((*((Handle(BRep_TEdge)*)&E.TShape()))->ChangeCurves());
1833
1834 while (itcr.More()) {
1835 const Handle(BRep_CurveRepresentation)& cr = itcr.Value();
1836 if ( cr->IsCurveOnSurface() )
1837 count++;
1838 itcr.Next();
1839 }
1840
1841 return count;
1842}
1843
1844
1845//=======================================================================
1846//function : RemoveLoop
1847//purpose :
1848//=======================================================================
1849static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
1850 const IntRes2d_IntersectionPoint &IP,
1851 const Standard_Real tolfact,
1852 const Standard_Real prec,
1853 const Standard_Boolean RemoveLoop3d)
1854{
1855 Standard_Boolean loopRemoved3d;
1856 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
1857
1858 Standard_Real f, l;
1859 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
1860
1861 Standard_Real t1 = IP.ParamOnFirst();
1862 Standard_Real t2 = IP.ParamOnSecond();
1863 if ( t1 > t2 ) { Standard_Real t = t1; t1 = t2; t2 = t; }
1864
1865 ShapeAnalysis_Edge sae;
1866 Standard_Real a, b;
1867 Handle(Geom2d_Curve) c2d;
1868 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
1869 return Standard_False;
1870
0797d9d3 1871#ifdef OCCT_DEBUG
04232180 1872 std::cout << "Cut Loop: params (" << t1 << ", " << t2;
7fd59977 1873#endif
1874 GeomAdaptor_Curve GAC ( crv, f, l );
1875 Standard_Real dt = tolfact * GAC.Resolution(prec);
1876 t1 -= dt; //1e-3;//::Precision::PConfusion();
1877 t2 += dt; //1e-3;//::Precision::PConfusion();
0797d9d3 1878#ifdef OCCT_DEBUG
04232180 1879 std::cout << ") -> (" << t1 << ", " << t2 << ")" << std::endl;
7fd59977 1880#endif
1881
1882 if ( t1 <= a || t2 >= b ) { // should not be so, but to be sure ..
1883 return Standard_False;
1884 }
1885
1886 // direct construction causes error on osf system.
1887 gp_Pnt p(0,0,0);
1888 gp_Dir d(0,0,1);
1889 gp_Ax3 ax(p, d);
1890 gp_Pln Pln (ax);
1891
1892 // PTV OCC884
1893 Handle(Geom_Plane) aPlaneSurf = Handle(Geom_Plane)::DownCast( BRep_Tool::Surface(face) );
1894 Handle(Geom_Curve) pcurve3d = crv;
1895 if ( !aPlaneSurf.IsNull() ) {
1896 Pln = aPlaneSurf->Pln();
1897 }
1898 else
1899 pcurve3d = GeomAPI::To3d ( c2d, Pln );
1900
1901 // first segment
1902 //Handle(Geom_Curve) pcurve3d = GeomAPI::To3d ( c2d, Pln );
1903 Handle(Geom_TrimmedCurve) trim = new Geom_TrimmedCurve (pcurve3d, a, t1);
1904 GeomConvert_CompCurveToBSplineCurve connect ( trim );
1905
1906 // null-length segment patch instead of loop
1907 TColgp_Array1OfPnt Poles(1,2);
1908 TColStd_Array1OfReal Knots(1,2);
1909 TColStd_Array1OfInteger Mults(1,2);
1910
1911 Poles.SetValue(1,trim->Value(t1));
1912 Knots.SetValue(1,t1);
1913 Mults.SetValue(1,2);
1914
1915 trim = new Geom_TrimmedCurve (pcurve3d, t2, b);
1916 Poles.SetValue(2,trim->Value(t2));
1917 Knots.SetValue(2,t2);
1918 Mults.SetValue(2,2);
1919
1920 Handle(Geom_BSplineCurve) patch = new Geom_BSplineCurve ( Poles, Knots, Mults, 1 );
1921 if ( ! connect.Add (patch, ::Precision::PConfusion(), Standard_True, Standard_False) )
1922 return Standard_False;
1923
1924 // last segment
1925 if ( ! connect.Add (trim, ::Precision::PConfusion(), Standard_True, Standard_False) )
1926 return Standard_False;
1927 // PTV OCC884
1928 // keep created 3d curve
1929 Handle(Geom_Curve) aNew3dCrv = connect.BSplineCurve();
1930
1931
1932 Handle(Geom2d_Curve) bs = GeomAPI::To2d ( aNew3dCrv, Pln );
1933 if ( bs.IsNull() ) return Standard_False;
1934
1935 // make temp edge and compute tolerance
1936 BRep_Builder B;
1937
1938 if(!RemoveLoop3d) { // old variant (not remove loop 3d)
1939 Standard_Real newtol=0;
1940 // OCC901
1941 Standard_Integer nbC2d = howMuchPCurves( E );
1942 if ( nbC2d <= 1 && !aPlaneSurf.IsNull() )
1943 B.UpdateEdge ( E, bs, face, 0 );
1944 else
1945 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1946
1947 Standard_Real tol = BRep_Tool::Tolerance ( E );
0797d9d3 1948#ifdef OCCT_DEBUG
04232180 1949 std::cout << "Cut Loop: tol orig " << tol << ", prec " << prec << ", new tol " << newtol << std::endl;
7fd59977 1950#endif
1951 if ( newtol > Max ( prec, tol ) ) return Standard_False;
1952 //:s2 bs = BRep_Tool::CurveOnSurface ( edge, face, a, b );
1953 if ( Abs ( a - f ) > ::Precision::PConfusion() || // smth strange, cancel
1954 Abs ( b - l ) > ::Precision::PConfusion() ) return Standard_False;
1955 // PTV OCC884
1956 if ( !aPlaneSurf.IsNull() ) {
1957 B.UpdateEdge ( E, aNew3dCrv, Max (newtol, tol) );
1958 // OCC901
1959 if ( ! TryNewPCurve ( E, face, bs, a, b, newtol ) ) return Standard_False;
1960 }
1961 B.UpdateEdge ( E, bs, face, newtol );
1962 B.UpdateVertex ( sae.FirstVertex ( E ), newtol );
1963 B.UpdateVertex ( sae.LastVertex ( E ), newtol );
1964 return Standard_True;
1965 }
1966
1967 //:q1
1968 TopLoc_Location L;
1969 Handle(Geom_Surface) S = BRep_Tool::Surface(face, L);
1970 Handle(Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
1971 Handle(GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
1972
1973 Adaptor3d_CurveOnSurface ACS(AC,AS);
1974 gp_Pnt P1(ACS.Value(t1));
1975 gp_Pnt P2(ACS.Value(t2));
1976 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
1977
1978 ShapeAnalysis_TransferParametersProj SFTP(E,face);
1979 Handle(TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
1980 Seq2d->Append(t1);
1981 Seq2d->Append(t2);
1982 Seq2d->Append((t1+t2)/2);
c04c30b3 1983 Handle(TColStd_HSequenceOfReal) Seq3d = SFTP.Perform(Seq2d,Standard_False);
7fd59977 1984
1985 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
1986 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
1987 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
1988 Standard_Real ftrim,ltrim;
1989 if(dist3>Max(dist1,dist2)) {
1990 loopRemoved3d = Standard_False;
1991 }
1992 else {
1993 loopRemoved3d = Standard_True;
1994 }
1995
1996 Handle(Geom_Curve) bs1;
1997
1998 if (!loopRemoved3d) {
1999 // create new 3d curve
2000 ftrim = Seq3d->Value(1);
2001 ltrim = Seq3d->Value(2);
2002 ftrim-=dt;
2003 ltrim+=dt;
2004 Handle(Geom_TrimmedCurve) trim1 = new Geom_TrimmedCurve (crv, f, ftrim);
2005 GeomConvert_CompCurveToBSplineCurve connect1 ( trim1 );
2006 TColgp_Array1OfPnt Poles1(1,2);
2007 TColStd_Array1OfReal Knots1(1,2);
2008 TColStd_Array1OfInteger Mults1(1,2);
2009
2010 Poles1.SetValue(1,trim1->Value(ftrim));
2011 Knots1.SetValue(1,ftrim);
2012 Mults1.SetValue(1,2);
2013
2014 trim1 = new Geom_TrimmedCurve (crv, ltrim, l);
2015 Poles1.SetValue(2,trim1->Value(ltrim));
2016 Knots1.SetValue(2,ltrim);
2017 Mults1.SetValue(2,2);
2018
2019 // create b-spline curve
2020 Handle(Geom_BSplineCurve) patch1 = new Geom_BSplineCurve ( Poles1, Knots1, Mults1, 1 );
2021
2022 if ( ! connect1.Add (patch1, ::Precision::PConfusion(), Standard_True, Standard_False) )
2023 return Standard_False;
2024
2025 // last segment
2026 if ( ! connect1.Add (trim1, ::Precision::PConfusion(), Standard_True, Standard_False) )
2027 return Standard_False;
2028
2029 bs1 = connect1.BSplineCurve();
2030
2031 if ( bs1.IsNull() )
2032 return Standard_False;
2033 }
2034// Standard_Real oldtol = BRep_Tool::Tolerance ( E );
2035
2036 if (!loopRemoved3d)
2037 B.UpdateEdge ( E, bs1, L, 0. );
2038 B.UpdateEdge ( E, bs, face, 0. );
2039 B.Range ( E, face, f, l );
2040 B.SameRange ( E, Standard_False );
2041
2042 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
2043 sfe->FixSameParameter ( E );
2044
2045 return Standard_True;
2046}
2047
2048//=======================================================================
2049//function : RemoveLoop
2050//purpose :
2051//=======================================================================
2052static Standard_Boolean RemoveLoop (TopoDS_Edge &E, const TopoDS_Face &face,
2053 const IntRes2d_IntersectionPoint &IP2d,
2054 TopoDS_Edge &E1,
2055 TopoDS_Edge &E2)
2056{
0797d9d3 2057#ifdef OCCT_DEBUG
04232180 2058 std::cout<<"Info: ShapeFix_Wire::FixSelfIntersection : Try insert vertex"<<std::endl;
7fd59977 2059#endif
2060
2061 if ( BRep_Tool::IsClosed ( E, face ) ) return Standard_False;
2062
2063 Standard_Real f, l;
2064 Handle(Geom_Curve) crv = BRep_Tool::Curve ( E, f, l );
2065
2066 Standard_Real t1 = IP2d.ParamOnFirst();
2067 Standard_Real t2 = IP2d.ParamOnSecond();
2068
2069 if ( t1 > t2 )
2070 {
2071 Standard_Real t = t1; t1 = t2; t2 = t;
2072 }
2073
2074 ShapeAnalysis_Edge sae;
2075
2076 // define vertexes Vfirst , Vlast, Vmid
2077 TopoDS_Vertex Vfirst,Vlast,Vmid;
2078 // initialize Vfirst and Vlast
2079 Vfirst = sae.FirstVertex(E);
2080 Vlast = sae.LastVertex(E);
2081
2082 // find a 2d curve and parameters from edge E
2083 Standard_Real a, b;
2084 Handle (Geom2d_Curve) c2d;
2085 if ( ! sae.PCurve ( E, face, c2d, a, b, Standard_False ) )
2086 return Standard_False;
2087
2088 // first segment for 2d curve
2089 Handle(Geom2d_TrimmedCurve) trim1;
2090 if( (t1-a)>Precision::PConfusion() )
2091 trim1 = new Geom2d_TrimmedCurve (c2d, a, t1);
2092 // second segment for 2d curve
2093 Handle(Geom2d_TrimmedCurve) trim2 = new Geom2d_TrimmedCurve (c2d, t2, b);
2094
2095// if ( trim1.IsNull() || trim2.IsNull() )
2096 if(trim2.IsNull())
2097 return Standard_False;
2098
2099 TopLoc_Location L;
2100 Handle (Geom_Surface) S = BRep_Tool::Surface(face, L);
2101 Handle (Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(c2d);
2102 Handle (GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(S);
2103
2104 Adaptor3d_CurveOnSurface ACS(AC,AS);
2105 gp_Pnt P1(ACS.Value(t1));
2106 gp_Pnt P2(ACS.Value(t2));
2107 gp_Pnt pcurPnt((P1.X()+P2.X())/2,(P1.Y()+P2.Y())/2,(P1.Z()+P2.Z())/2);
2108
2109 // transfer parameters from pcurve to 3d curve
2110 ShapeAnalysis_TransferParametersProj SFTP(E,face);
2111 Handle (TColStd_HSequenceOfReal) Seq2d = new TColStd_HSequenceOfReal;
2112 Seq2d->Append(t1);
2113 Seq2d->Append(t2);
2114 Seq2d->Append((t1+t2)/2);
c04c30b3 2115 Handle (TColStd_HSequenceOfReal) Seq3d = SFTP.Perform(Seq2d,Standard_False);
7fd59977 2116
2117 Standard_Real dist1 = pcurPnt.Distance(crv->Value(Seq3d->Value(1)));// correting Seq3d already project
2118 Standard_Real dist2 = pcurPnt.Distance(crv->Value(Seq3d->Value(2)));
2119 Standard_Real dist3 = pcurPnt.Distance(crv->Value(Seq3d->Value(3)));
2120 Standard_Real ftrim,ltrim;
2121 if ( dist3 > Max(dist1, dist2)) { // is loop in 3d
2122 ftrim = Seq3d->Value(1);
2123 ltrim = Seq3d->Value(2);
2124 }
2125 else { // not loop in 3d
2126 ftrim = Seq3d->Value(3);
2127 ltrim = Seq3d->Value(3);
2128 }
2129
2130// ftrim = Seq3d->Value(1);
2131// ltrim = Seq3d->Value(2);
2132
2133 // trim for 3d curve 'crv' with parameters from 'f' to 'l'
2134 Handle(Geom_TrimmedCurve) trim3;
2135 if(!trim1.IsNull())
2136 trim3 = new Geom_TrimmedCurve (crv, f, ftrim);
2137 // second segment for 3d curve
2138 Handle(Geom_TrimmedCurve) trim4 = new Geom_TrimmedCurve (crv, ltrim, l);
2139
2140// if ( trim3.IsNull() || trim4.IsNull() )
2141 if(trim4.IsNull())
2142 return Standard_False;
2143
2144 // create a point for middle vertex
2145 gp_Pnt pnt1 = crv->Value(ftrim);
2146 gp_Pnt pnt2 = crv->Value(ltrim);
2147 gp_Pnt Pmid((pnt1.X()+pnt2.X())/2,(pnt1.Y()+pnt2.Y())/2,(pnt1.Z()+pnt2.Z())/2);
2148
2149 BRep_Builder B;
2150
2151 // create new copies for E1 and E2
2152 if(!trim1.IsNull())
2153 E1=TopoDS::Edge(E.EmptyCopied());
2154 E2=TopoDS::Edge(E.EmptyCopied());
2155
2156 // initialize middle vertex Vmid
2157 if(trim1.IsNull())
2158 B.MakeVertex(Vmid, pnt2, 0.);
2159 else
2160 B.MakeVertex(Vmid, Pmid, 0.);
2161
2162 ShapeBuild_Edge sbe;
2163
2164 // replace verteces for new edges E1 and E2
2165 if (E.Orientation()== TopAbs_FORWARD)
2166 {
2167 if(!E1.IsNull())
2168 E1=sbe.CopyReplaceVertices(E1,Vfirst,Vmid);
2169 E2=sbe.CopyReplaceVertices(E2,Vmid, Vlast);
2170 }
2171 else
2172 {
2173 if(!E1.IsNull())
2174 E1=sbe.CopyReplaceVertices(E1,Vmid, Vlast);
2175 E2=sbe.CopyReplaceVertices(E2,Vfirst, Vmid);
2176 }
2177
2178 // Update edges by 2d and 3d curves
2179 Handle(ShapeFix_Edge) mySfe = new ShapeFix_Edge;
2180 if(!E1.IsNull()) {
2181 B.UpdateEdge(E1, trim1, face, 0.);
2182 B.UpdateEdge(E1, trim3, 0.);
2183 B.Range(E1, f, ftrim);
2184 B.SameRange(E1,Standard_False);
2185// B.SameParameter(E1,Standard_False);
2186 mySfe->FixSameParameter(E1);
2187 mySfe->FixVertexTolerance(E1);
2188 }
2189 B.UpdateEdge(E2, trim2, face, 0.);
2190 B.UpdateEdge(E2, trim4, 0.);
2191 B.Range ( E2,ltrim,l );
2192 B.SameRange(E2, Standard_False );
2193// B.SameParameter(E2, Standard_False);
2194 mySfe->FixSameParameter(E2);
2195 mySfe->FixVertexTolerance(E2);
2196
2197 return Standard_True;
2198}
2199
2200
2201//=======================================================================
2202//function : FixSelfIntersectingEdge
2203//purpose :
2204//=======================================================================
2205
2206Standard_Boolean ShapeFix_Wire::FixSelfIntersectingEdge (const Standard_Integer num)
2207{
2208 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2209 if ( ! IsReady() ) return Standard_False;
2210
2211 // analysis
2212 IntRes2d_SequenceOfIntersectionPoint points2d;
2213 TColgp_SequenceOfPnt points3d;
a9dde4a3 2214 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = myAnalyzer;
7fd59977 2215 if (theAdvAnalyzer.IsNull()) return Standard_False;
2216 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, points2d, points3d );
2217 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2218 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2219 }
2220 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2221
2222 // action: increase tolerance of vertex
2223
2224 TopoDS_Edge E = WireData()->Edge ( num >0 ? num : NbEdges() );
2225
2226 ShapeAnalysis_Edge sae;
2227 TopoDS_Vertex V1 = sae.FirstVertex ( E );
2228 TopoDS_Vertex V2 = sae.LastVertex ( E );
2229 Standard_Real tol1 = BRep_Tool::Tolerance ( V1 );
2230 Standard_Real tol2 = BRep_Tool::Tolerance ( V2 );
2231 gp_Pnt pnt1 = BRep_Tool::Pnt ( V1 );
2232 gp_Pnt pnt2 = BRep_Tool::Pnt ( V2 );
2233
2234 // cycle is to verify fix in case of RemoveLoop
2235 Standard_Real tolfact = 0.1; // factor for shifting by parameter in RemoveLoop
1d47d8d0 2236 Standard_Real f2d = 0., l2d = 0.;
7fd59977 2237 Handle(Geom2d_Curve) c2d;
2238 Standard_Real newtol=0.; // = Precision();
2239
2240 if (myRemoveLoopMode<1) {
2241 for ( Standard_Integer iter=0; iter < 30; iter++ ) {
8c2d3314 2242 Standard_Boolean loopRemoved = Standard_False;
7fd59977 2243 Standard_Real prevFirst = 0 , prevLast = 0;
2244 for ( Standard_Integer i=1; i<=points2d.Length(); i++ ) {
2245 gp_Pnt pint = points3d.Value(i);
2246 Standard_Real dist21 = pnt1.SquareDistance ( pint );
2247 Standard_Real dist22 = pnt2.SquareDistance ( pint );
2248 if ( dist21 < tol1 * tol1 || dist22 < tol2 * tol2 ) continue;
2249 newtol = 1.001 * Sqrt ( Min ( dist21, dist22 ) ); //:f8
2250
2251 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2252 if ( myGeomMode ) {
2253 if ( c2d.IsNull() )
2254 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2255 Standard_Real firstpar = points2d.Value(i).ParamOnFirst();
2256 Standard_Real lastpar = points2d.Value(i).ParamOnSecond();
2257 if(firstpar > prevFirst && lastpar < prevLast) continue;
2258 if ( RemoveLoop (E, Face(), points2d.Value(i), tolfact,
2259 Min( MaxTolerance(), Max(newtol,Precision()) ),
2260 myRemoveLoopMode==0 ) ) {
2261 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2262 loopRemoved = Standard_True;
2263 prevFirst = firstpar;
2264 prevLast = lastpar;
2265 continue; // repeat of fix on that edge required (to be done by caller)
2266 }
2267 }
2268 if ( newtol < MaxTolerance() ) {
2269 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2270 BRep_Builder B;
2271 if ( dist21 < dist22 ) B.UpdateVertex ( V1, tol1 = newtol );
2272 else B.UpdateVertex ( V2, tol2 = newtol );
2273 }
2274 else myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2275 }
2276
2277 // after RemoveLoop, check that self-intersection disappeared
2278 if ( loopRemoved ) {
2279 IntRes2d_SequenceOfIntersectionPoint pnts2d;
2280 TColgp_SequenceOfPnt pnts3d;
2281 theAdvAnalyzer->CheckSelfIntersectingEdge ( num, pnts2d, pnts3d );
2282 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) break;
2283 //points3d.Append(pnts3d);
2284 //points2d.Append(pnts2d);
2285 points3d = pnts3d;
2286 points2d = pnts2d;
2287 BRep_Builder B;
2288 B.UpdateEdge ( E, c2d, Face(), 0. );
2289 B.Range ( E, Face(), f2d, l2d );
2290 //newtol+=Precision();
2291 }
2292 else {
2293 break;
2294 }
2295 }
2296 }
2297
2298 //===============================================
2299 // RemoveLoopMode = 1 , insert vertex
2300 //===============================================
2301 if (myRemoveLoopMode == 1) {
2302 // after fixing will be nb+1 edges
2303 Standard_Boolean loopRemoved;
2304 // create a sequence of resulting edges
2305 Handle (TopTools_HSequenceOfShape) TTSS = new TopTools_HSequenceOfShape;
2306 TopoDS_Edge E2;
2307
2308 loopRemoved = Standard_False;
2309 //:k3 abv 24 Dec 98: BUC50070 #26682 and #30087: try to remove loop
2310 if ( myGeomMode ) {
2311 if ( c2d.IsNull() )
2312 sae.PCurve ( E, Face(), c2d, f2d, l2d, Standard_False );
2313 TopoDS_Edge E1;
2314 if ( RemoveLoop (E, Face(), points2d.Value(1),E1,E2) ) {
2315 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2316 loopRemoved = Standard_True;
2317 if(!E1.IsNull()) {
2318 TTSS->Append(E1);
2319 newtol = Max(BRep_Tool::Tolerance(E1),BRep_Tool::Tolerance(E2));
2320 }
2321 else
2322 newtol = BRep_Tool::Tolerance(E2);
2323 }
2324 }
2325
2326 TTSS->Append(E2);
2327
2328 if ( newtol > MaxTolerance() )
2329 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2330
2331 ShapeExtend_WireData sewd;
2332 for (Standard_Integer i=1 ; i <= TTSS->Length(); i++) {
2333 sewd.Add(TopoDS::Edge(TTSS->Value(i)));
2334 }
2335 if (! Context().IsNull()) {
2336 Context()->Replace ( E, sewd.Wire() );
2337 UpdateWire();
2338 }
2339 else {
2340 WireData()->Remove(num >0 ? num : NbEdges());
2341 WireData()->Add(sewd.Wire(), num >0 ? num : NbEdges());
2342 }
2343 if (loopRemoved)
2344 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE8 );
2345
2346 }
2347
2348 if ( LastFixStatus ( ShapeExtend_DONE ) && ! myShape.IsNull() ) {
999d2599 2349 SendWarning ( E, Message_Msg ( "FixAdvWire.FixIntersection.MSG5" ) );// Edge was self-intersecting, corrected
7fd59977 2350 }
2351
2352 return LastFixStatus ( ShapeExtend_DONE );
2353}
2354
2355
2356//=======================================================================
2357//function : ComputeLocalDeviation
2358//purpose : auxilary
2359//=======================================================================
2360static Standard_Real ComputeLocalDeviation (const TopoDS_Edge &edge,
2361 const gp_Pnt &pint,const gp_Pnt &pnt,
2362 Standard_Real f, Standard_Real l,
2363 const TopoDS_Face &face )
2364{
2365 ShapeAnalysis_Edge sae;
2366 Handle(Geom_Curve) c3d;
2367 Standard_Real a, b;
2368 if ( ! sae.Curve3d ( edge, c3d, a, b, Standard_False ) ) return RealLast();
2369
2370 gp_Lin line ( pint, gp_Vec ( pint, pnt ) );
2371
2372 Handle(Geom2d_Curve) Crv;
2373 Standard_Real fp,lp;
2374 if ( sae.PCurve(edge,face,Crv,fp,lp,Standard_False) ) {
2375 if(Crv->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
2376 Handle(Geom2d_TrimmedCurve) tc = Handle(Geom2d_TrimmedCurve)::DownCast(Crv);
2377 if(tc->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Line))) {
2378 f = a + (f-fp)*(b-a)/(lp-fp);
2379 l = a + (l-fp)*(b-a)/(lp-fp);
2380 }
2381 }
2382 }
2383
2384 const Standard_Integer NSEG = 10;
2385 Standard_Real step = ( l - f ) / NSEG;
2386 Standard_Real dev = 0.;
2387 for ( Standard_Integer i=1; i < NSEG; i++ ) {
2388 gp_Pnt p = c3d->Value ( f + i * step );
2389 Standard_Real d = line.Distance ( p );
2390 if ( dev < d ) dev = d;
2391 }
2392 return dev;
2393}
2394
2395//=======================================================================
2396//function : FixIntersectingEdges
2397//purpose :
2398//=======================================================================
2399
2400Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num)
2401{
2402 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2403 if ( ! IsReady() || NbEdges() <2 ) return Standard_False;
2404
2405 // analysis
2406 IntRes2d_SequenceOfIntersectionPoint points2d;
2407 TColgp_SequenceOfPnt points3d;
2408 TColStd_SequenceOfReal errors;
a9dde4a3 2409 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = myAnalyzer;
7fd59977 2410 if (theAdvAnalyzer.IsNull()) return Standard_False;
2411 theAdvAnalyzer->CheckIntersectingEdges ( num, points2d, points3d, errors );
2412 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2413 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2414 }
2415 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2416
2417 //rln 03/02/98: CSR#BUC50004 entity 56 (to avoid later inserting lacking edge)
2418 //:l0 Standard_Boolean isLacking = myAnalyzer->CheckLacking ( num );
2419
2420 // action: increase tolerance of vertex
2421
2422 Handle(ShapeExtend_WireData) sbwd = WireData();
2423 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2424 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2425 TopoDS_Edge E1 = sbwd->Edge(n1);
2426 TopoDS_Edge E2 = sbwd->Edge(n2);
53446383 2427 if ( !Context().IsNull() )
2428 {
2429 E1 = TopoDS::Edge(Context()->Apply(sbwd->Edge(n1)));
2430 E2 = TopoDS::Edge(Context()->Apply(sbwd->Edge(n2)));
2431 }
2432
7fd59977 2433 Standard_Boolean isForward1 = ( E1.Orientation() == TopAbs_FORWARD );
2434 Standard_Boolean isForward2 = ( E2.Orientation() == TopAbs_FORWARD );
2435 Standard_Real a1, b1, a2, b2;
2436 BRep_Tool::Range ( E1, Face(), a1, b1 );
2437 BRep_Tool::Range ( E2, Face(), a2, b2 );
ed5ca017 2438
7fd59977 2439 ShapeAnalysis_Edge sae;
2440 TopoDS_Vertex Vp = sae.FirstVertex ( E1 );
2441 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2442 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2443 TopoDS_Vertex Vn = sae.LastVertex ( E2 );
2444
2445 Standard_Real tol = BRep_Tool::Tolerance ( V1 );
2446 gp_Pnt pnt = BRep_Tool::Pnt ( V1 );
2447
2448 Standard_Real prevRange1 = RealLast(), prevRange2 = RealLast();
2449 Standard_Boolean cutEdge1 = Standard_False, cutEdge2 = Standard_False;
2450 Standard_Boolean IsCutLine = Standard_False;
53446383 2451 Standard_Boolean isChangedEdge = Standard_False;
7fd59977 2452
2453 BRep_Builder B;
ed5ca017 2454
7fd59977 2455 Standard_Integer nb = points3d.Length();
2456 for ( Standard_Integer i=1; i <= nb; i++ ) {
2457 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2458 Standard_Real param1 = ( num ==1 ? IP.ParamOnSecond() : IP.ParamOnFirst() );
2459 Standard_Real param2 = ( num ==1 ? IP.ParamOnFirst() : IP.ParamOnSecond() );
2460
2461 Standard_Real newRange1 = Abs ( ( isForward1 ? a1 : b1 ) - param1 );
2462 Standard_Real newRange2 = Abs ( ( isForward2 ? b2 : a2 ) - param2 );
2463 if ( newRange1 > prevRange1 && newRange2 > prevRange2 ) continue;
2464
2465 gp_Pnt pint = points3d.Value(i);
2466 Standard_Real rad = errors.Value(i);
2467 Standard_Real newtol = 1.0001 * ( pnt.Distance ( pint ) + rad );
2468
3163e9fd 2469 //GeomAdaptor_Surface& Ads = myAnalyzer->Surface()->Adaptor3d()->ChangeSurface();
7fd59977 2470
2471 //:r8 abv 12 Apr 99: try increasing tolerance of edge
3163e9fd 2472
2473 Standard_Boolean locMayEdit = myTopoMode;
2474 // Always try to modify the tolerance firstly as a better solution
ed5ca017 2475 if ( /*! myTopoMode &&*/ newtol > tol )
2476 {
7fd59977 2477 Standard_Real te1 = rad + ComputeLocalDeviation (E1, pint, pnt,
3163e9fd 2478 param1, ( isForward1 ? b1 : a1 ), Face() );
7fd59977 2479 Standard_Real te2 = rad + ComputeLocalDeviation (E2, pint, pnt,
3163e9fd 2480 ( isForward2 ? a2 : b2 ), param2, Face() );
7fd59977 2481 Standard_Real maxte = Max ( te1, te2 );
ed5ca017 2482 if ( maxte < MaxTolerance() && maxte < newtol )
2483 {
2484 if ( BRep_Tool::Tolerance(E1) < te1 || BRep_Tool::Tolerance(E2) < te2 )
2485 {
3163e9fd 2486#ifdef OCCT_DEBUG
04232180 2487 std::cout << "Warning: ShapeFix_Wire::FixIE: edges tolerance increased: (" <<
2488 te1 << ", " << te2 << ") / " << newtol << std::endl;
3163e9fd 2489#endif
ed5ca017 2490
2491 // Make copy of edges.
2492 if (!Context().IsNull())
2493 {
53446383 2494 isChangedEdge = Standard_True; // To avoid double copying of vertexes.
2495
ed5ca017 2496 // Intersection point of two base edges.
2497 ShapeBuild_Edge aSBE;
2498 TopoDS_Vertex VV1 = Context()->CopyVertex(V1);
2499
2500 TopoDS_Vertex VVp = Vp;
2501 TopoDS_Vertex VVn = Vn;
2502 if (Vp.IsSame(Vn))
2503 {
2504 // Should modify only one vertex.
2505 VVp = Context()->CopyVertex(Vp);
2506 VVn = VVp;
2507 }
2508 else
2509 {
2510 VVp = Context()->CopyVertex(Vp);
2511 VVn = Context()->CopyVertex(Vn);
2512 }
2513
2514 TopoDS_Edge EE1 = aSBE.CopyReplaceVertices(E1, VVp, VV1);
2515 TopoDS_Edge EE2 = aSBE.CopyReplaceVertices(E2, VV1, VVn);
2516
2517 Context()->Replace(E1, EE1);
2518 Context()->Replace(E2, EE2);
2519
2520 UpdateWire();
2521 E1 = sbwd->Edge(n1);
2522 E2 = sbwd->Edge(n2);
2523 Vp = sae.FirstVertex ( E1 );
2524 V1 = sae.LastVertex ( E1 );
2525 V2 = sae.FirstVertex ( E2 );
2526 Vn = sae.LastVertex ( E2 );
2527 }
2528
3163e9fd 2529 B.UpdateEdge ( E1, 1.000001 * te1 );
2530 B.UpdateVertex ( sae.FirstVertex ( E1 ), 1.000001 * te1 );
2531 B.UpdateVertex ( sae.LastVertex ( E1 ), 1.000001 * te1 );
2532 B.UpdateEdge ( E2, 1.000001 * te2 );
2533 B.UpdateVertex ( sae.FirstVertex ( E2 ), 1.000001 * te2 );
2534 B.UpdateVertex ( sae.LastVertex ( E2 ), 1.000001 * te2 );
2535
2536 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE6 );
2537 locMayEdit = Standard_False;
2538 }
2539 newtol = 1.000001 * maxte;
7fd59977 2540 }
2541 }
2542
3163e9fd 2543 if ( locMayEdit || newtol <= MaxTolerance() )
2544 {
7fd59977 2545 prevRange1 = newRange1;
2546 prevRange2 = newRange2;
3163e9fd 2547 if ( locMayEdit )
2548 {
2549 newtol = 1.0001 * ( pnt.Distance ( pint ) + rad );
2550 //:j6 abv 7 Dec 98: ProSTEP TR10 r0601_id.stp #57676 & #58586: do not cut edges because of influence on adjacent faces
7fd59977 2551 ShapeFix_SplitTool aTool;
3163e9fd 2552
2553 if ( ! aTool.CutEdge ( E1, ( isForward1 ? a1 : b1 ), param1, Face(), IsCutLine ) ) {
2554 if ( V1.IsSame ( Vp ) )
2555 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
2556 else locMayEdit = Standard_False;
2557 }
2558 else cutEdge1 = Standard_True; //:h4
2559
2560 if ( ! aTool.CutEdge ( E2, ( isForward2 ? b2 : a2 ), param2, Face(), IsCutLine ) ) {
2561 if ( V2.IsSame ( Vn ) )
2562 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
2563 else locMayEdit = Standard_False;
2564 }
2565 else cutEdge2 = Standard_True; //:h4
7fd59977 2566 }
3163e9fd 2567
2568 if ( locMayEdit &&
2569 newRange1 <= prevRange1 && newRange2 <= prevRange2 && //rln 09/01/98
2570 BRep_Tool::SameParameter ( E1 ) &&
2571 BRep_Tool::SameParameter ( E2 ) )
2572 {
2573 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2574 pnt = pint;
2575 if ( tol <= rad ) {
2576 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2577 tol = 1.001 * rad;
2578 }
7fd59977 2579 }
3163e9fd 2580 else
2581 {
2582 if(IsCutLine)
2583 {
2584 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
2585 pnt = pint;
2586 if ( tol <= rad ) {
2587 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2588 tol = 1.001 * rad;
2589 }
2590 }
2591 else
2592 { // else increase tolerance
2593 if (tol < newtol)
2594 { //rln 07.04.99 CCI60005-brep.igs
2595 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
2596 tol = newtol;
2597 }
2598 }
7fd59977 2599 }
2600 }
3163e9fd 2601 else
2602 {
2603 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2604 }
7fd59977 2605 }
2606
2607 if ( ! LastFixStatus ( ShapeExtend_DONE ) ) return Standard_False;
2608
53446383 2609 if (isChangedEdge)
2610 {
2611 B.UpdateVertex ( V1, pnt, tol );
2612 B.UpdateVertex ( V2, pnt, tol );
2613 }
2614 else
2615 {
2616 if ( !Context().IsNull() )
2617 {
2618 if (V1.IsSame(V2) )
2619 {
2620 Context()->CopyVertex(V1, pnt, tol);
2621 }
2622 else
2623 {
2624 Context()->CopyVertex(V1, pnt, tol);
2625 Context()->CopyVertex(V2, pnt, tol);
2626 }
2627 }
2628 else
2629 {
2630 B.UpdateVertex ( V1, pnt, tol );
2631 B.UpdateVertex ( V2, pnt, tol );
2632 }
2633 }
7fd59977 2634
2635 //:h4: make edges SP (after all cuts: t4mug.stp #3730+#6460)
53446383 2636 if ( cutEdge1 )
2637 {
2638 if ( !Context().IsNull() )
2639 E1 = TopoDS::Edge(Context()->Apply(E1));
2640 myFixEdge->FixSameParameter ( E1 );
2641 }
2642 if ( cutEdge2 && !IsCutLine )
2643 {
2644 if ( !Context().IsNull() )
2645 E2 = TopoDS::Edge(Context()->Apply(E2));
2646 myFixEdge->FixSameParameter ( E2 );
2647 }
7fd59977 2648 if ( cutEdge1 || cutEdge2 ) {
2649 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE7 );
2650 }
2651 if ( ! myShape.IsNull() ) {
999d2599 2652 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
7fd59977 2653 }
2654 return Standard_True;
2655}
2656
2657//=======================================================================
2658//function : FixIntersectingEdges
2659//purpose :
2660//=======================================================================
2661//pdn 17.03.99 fixing non ajacent intersection by increasing tolerance of vertex
2662
2663Standard_Boolean ShapeFix_Wire::FixIntersectingEdges (const Standard_Integer num1,
2664 const Standard_Integer num2)
2665{
2666 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2667 if ( !IsReady() ) return Standard_False;
2668 IntRes2d_SequenceOfIntersectionPoint points2d;
2669 TColgp_SequenceOfPnt points3d;
2670 TColStd_SequenceOfReal errors;
a9dde4a3 2671 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = myAnalyzer;
7fd59977 2672 if (theAdvAnalyzer.IsNull()) return Standard_False;
2673 theAdvAnalyzer->CheckIntersectingEdges ( num1, num2, points2d, points3d, errors);
2674 if ( theAdvAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2675 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2676 }
2677 if ( ! theAdvAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2678 TColgp_Array1OfPnt vertexPoints(1,4);
2679 TColStd_Array1OfReal vertexTolers(1,4);
2680 TColStd_Array1OfReal newTolers(1,4);
2681 TopTools_Array1OfShape vertices(1,4);
2682 newTolers.Init(0);
2683
2684 Handle(ShapeExtend_WireData) sbwd = WireData();
2685 Standard_Integer n2 = ( num1 >0 ? num1 : sbwd->NbEdges() );
2686 Standard_Integer n1 = ( num2 >1 ? num2 : sbwd->NbEdges() );
2687 if(n1==n2) return Standard_False;
2688
2689 TopoDS_Edge edge1 = sbwd->Edge(n1);
2690 TopoDS_Edge edge2 = sbwd->Edge(n2);
2691
2692 ShapeAnalysis_Edge sae;
2693 vertices(1) = sae.FirstVertex(edge1);
2694 vertices(2) = sae.LastVertex(edge1);
2695 vertices(3) = sae.FirstVertex(edge2);
2696 vertices(4) = sae.LastVertex(edge2);
2697
2698 Standard_Integer i; // svv Jan11 2000 : porting on DEC
2699 for (i = 1; i <=4; i++) {
2700 vertexPoints(i) = BRep_Tool::Pnt(TopoDS::Vertex(vertices(i)));
2701 vertexTolers(i) = BRep_Tool::Tolerance(TopoDS::Vertex(vertices(i)));
2702 }
2703
2704 Standard_Real aNewTolEdge1 = 0.0, aNewTolEdge2 = 0.0;
2705 Standard_Integer nb = points3d.Length();
2706 for ( i=1; i <= nb; i++ ) {
2707 gp_Pnt pint = points3d.Value(i);
2708
2709 // searching for the nearest vertexies to the intersection point
2710 Standard_Real aVtx1Param=0., aVtx2Param=0.;
2711 Standard_Integer aVC1, aVC2;
2712 Standard_Real aMinDist = RealLast();
2713 gp_Pnt aNearestVertex;
2714 Standard_Real aNecessaryVtxTole = 0.0;
2715 for(aVC1 = 1; aVC1 <= 2; aVC1++) {
2716 for(aVC2 = 3; aVC2 <= 4; aVC2++) {
2717
2718 Standard_Real aVtxIPDist = pint.Distance(vertexPoints(aVC1));
2719 Standard_Real aVtxVtxDist = vertexPoints(aVC1).Distance(vertexPoints(aVC2));
2720 if(aMinDist > aVtxIPDist && aVtxIPDist > aVtxVtxDist) {
2721 aNecessaryVtxTole = aVtxVtxDist;
2722 aNearestVertex = vertexPoints(aVC1);
2723 aMinDist = aVtxIPDist;
2724 aVtx1Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC1)),edge1);
2725 aVtx2Param = BRep_Tool::Parameter(TopoDS::Vertex(vertices(aVC2)),edge2);
2726 }
2727 }
2728 }
2729
2730 // calculation of necessary tolerances of edges
2731 const IntRes2d_IntersectionPoint &IP = points2d.Value(i);
2732 Standard_Real param1 = IP.ParamOnFirst();
2733 Standard_Real param2 = IP.ParamOnSecond();
2734 Handle(Geom_Curve) aCurve1, aCurve2;
2735 Standard_Real f,l;
2736 TopLoc_Location L1, L2;
2737 aCurve1 = BRep_Tool::Curve(edge1, L1, f, l);
2738 aCurve2 = BRep_Tool::Curve(edge2, L2, f, l);
2739
2740 // if aMinDist lower than resolution than the intersection point lyes inside the vertex
2741 if(aMinDist < gp::Resolution())
2742 continue;
2743
2744 Standard_Real aMaxEdgeTol1 = 0.0, aMaxEdgeTol2 = 0.0;
2745 if(aMinDist < RealLast() && !aCurve1.IsNull() && !aCurve2.IsNull())
2746 {
2747 gp_Lin aLig(aNearestVertex, gp_Vec(aNearestVertex, pint));
2748 Standard_Integer aPointsC;
2749 Standard_Real du1 = 0.05*(param1 - aVtx1Param);
2750 Standard_Real du2 = 0.05*(param2 - aVtx2Param);
2751 Standard_Real tole1=BRep_Tool::Tolerance(edge1);
2752 Standard_Real tole2=BRep_Tool::Tolerance(edge2);
2753 for(aPointsC = 2; aPointsC < 19; aPointsC++)
2754 {
2755 Standard_Real u = aVtx1Param + aPointsC * du1;
2756 gp_Pnt P1 = aCurve1->Value(u);
2757 P1.Transform(L1.Transformation());
2758 Standard_Real d1 = aLig.Distance(P1) * 2.0000001;
2759 if(d1 > tole1 && d1 > aMaxEdgeTol1)
2760 aMaxEdgeTol1 = d1;
2761
2762 u = aVtx2Param + aPointsC * du2;
2763 gp_Pnt P2 = aCurve2->Value(u);
2764 P2.Transform(L2.Transformation());
2765 Standard_Real d2 = aLig.Distance(P2) * 2.0000001;
2766 if(d2 > tole2 && d2 > aMaxEdgeTol2)
2767 aMaxEdgeTol2 = d2;
2768 }
2769 if(aMaxEdgeTol1 == 0.0 && aMaxEdgeTol2 == 0.0) continue;
2770 // if the vertexies are far than tolerances so
2771 // we do not need to increase edge tolerance
2772 if(aNecessaryVtxTole > Max(aMaxEdgeTol1, tole1) ||
2773 aNecessaryVtxTole > Max(aMaxEdgeTol2, tole2))
2774 {
2775 aMaxEdgeTol1 = 0.0;
2776 aMaxEdgeTol2 = 0.0;
2777 }
2778 }
2779
2780 Standard_Real rad = errors.Value(i);
2781 Standard_Real finTol = RealLast();
2782 Standard_Integer rank=1;
2783 for(Standard_Integer j=1; j<=4; j++) {
2784 Standard_Real newtol = 1.0001 * ( pint.Distance (vertexPoints(j)) + rad );
2785 if(newtol<finTol) {
2786 rank = j;
2787 finTol = newtol;
2788 }
2789 }
2790 if(finTol <= MaxTolerance()) {
2791 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1);
2792 if(newTolers(rank) < finTol)
2793 {
2794 if(Max(aMaxEdgeTol1, aMaxEdgeTol2) < finTol && (aMaxEdgeTol1 > 0 || aMaxEdgeTol2 > 0))
2795 {
2796 aNewTolEdge1 = Max(aNewTolEdge1, aMaxEdgeTol1);
2797 aNewTolEdge2 = Max(aNewTolEdge2, aMaxEdgeTol2);
2798 }
2799 else
2800 {
2801 newTolers(rank) = finTol;
2802 }
2803 }
2804 } else {
2805 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2806 }
2807 }
2808
2809 BRep_Builder B;
2810 // update of tolerances of edges
2811 if(aNewTolEdge1 > 0)
2812 {
2813 for(i = 1; i <= 2; i++)
2814 if(aNewTolEdge1 > Max(vertexTolers(i), newTolers(i)))
2815 newTolers(i) = aNewTolEdge1;
2816 B.UpdateEdge(edge1, aNewTolEdge1);
2817 }
2818 if(aNewTolEdge2 > 0)
2819 {
2820 for(i = 3; i <= 4; i++)
2821 if(aNewTolEdge2 > Max(vertexTolers(i), newTolers(i)))
2822 newTolers(i) = aNewTolEdge2;
2823 B.UpdateEdge(edge2, aNewTolEdge2);
2824 }
2825
2826 // update of tolerances of vertexies
2827 for(i = 1; i <=4; i++)
2828 if(newTolers(i)>0) B.UpdateVertex(TopoDS::Vertex(vertices(i)),newTolers(i));
2829
2830 if ( ! myShape.IsNull() ) {
999d2599 2831 SendWarning ( Message_Msg ( "FixAdvWire.FixIntersection.MSG10" ) );// Edges were intersecting, corrected
7fd59977 2832 }
2833 return Standard_True;
2834}
2835
2836//=======================================================================
2837//function : FixLacking
2838//purpose : Test if two adjucent edges are disconnected in 2d (while connected
2839// in 3d), and in that case either increase tolerance of the vertex or
2840// add a new edge (straight in 2d space), in order to close wire in 2d.
2841// Returns True if edge was added or tolerance was increased.
2842//NOTE : Is to be run after FixDegenerated
2843//Algorithm: 1. Compute the 2d gap between edges and calculate a tolerance
2844// which should have vertex in order to comprise the gap
2845// (using GeomAdaptor_Surface); computed value is inctol
2846// 2. If inctol < tol of vertex, return False (everything is OK)
2847// 3. If inctol < Precision, just increase tolerance of vertex to inctol
2848// 4. Else (if both edges are not degenerated) try to add new edge
2849// with straight pcurve (in order to close the gap):
2850// a) if flag MayEdit is False
2851// 1. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2852// 2. else try to add degenerated edge (check that middle point of
2853// that pcurveis inside the vertex)
2854// b) if MayEdit is True
2855// 1. try to replace big vertex with two new small vertices
2856// connected by new edge. This is made if there is a 3d space
2857// between ends of adjacent edges.
2858// 2. if inctol < MaxTolerance, increase tolerance of vertex to inctol
2859// 3. else add either degenerated or closed edge (if middle point
2860// of a pcurve of a new edge is inside the vertex, then
2861// degenerated edge is added, else new edge is closed).
2862// 5. If new edge cannot be added, but inctol < MaxTolerance,
2863// when increase tolerance of vertex to a value of inctol
2864//Short list of some internal variables:
2865// tol - tolerance of vertex
2866// tol2d - tolerance in parametric space of the surface corresponding to 2*tol
2867// dist2d - distance between ends of pcurves of edges (2d)
2868// inctol - tolerance required for vertex to close 2d gap (=tol*dist2d/tol2d)
2869// tol1, tol2 - tolerances of edges, tol0 = tol1 + tol2
2870// p3d1, p3d2 - ends of 3d curves of edges
2871//=======================================================================
2872//:h2 abv 28 May 98: merged modifications by abv 22 Apr 98, gka 27 May 98
2873// and pdn 25 May 98 concerning lacking closed or degenerated edges
2874// Example files: r0501_pe #107813, UKI60107-6 250, UKI60107-3 1577.
2875
2876//:s2 abv 21 Apr 99: add functionality for bending pcurve
2877static Standard_Boolean TryBendingPCurve (const TopoDS_Edge &E, const TopoDS_Face &face,
2878 const gp_Pnt2d p2d, const Standard_Boolean end,
2879 Handle(Geom2d_Curve) &c2d,
2880 Standard_Real &first, Standard_Real &last,
2881 Standard_Real &tol)
2882{
2883 ShapeAnalysis_Edge sae;
2884 if ( ! sae.PCurve ( E, face, c2d, first, last, Standard_False ) ) return Standard_False;
2885
2886 {
2887 try {
2888 OCC_CATCH_SIGNALS
2889 Handle(Geom2d_BSplineCurve) bs;
2890 if ( c2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) )
2891 bs = Handle(Geom2d_BSplineCurve)::DownCast(c2d->Copy());
2892 else // if ( c2d->IsKind(STANDARD_TYPE(Geom2d_Line)) )
2893 {
2894 Handle(Geom2d_TrimmedCurve) trim = new Geom2d_TrimmedCurve ( c2d, first, last );
2895 bs = Geom2dConvert::CurveToBSplineCurve ( trim );
2896 }
2897 if ( bs.IsNull() ) return Standard_False;
2898
2899 Standard_Real par = ( end ? last : first );
2900 if ( fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2901 bs->Multiplicity(1) > bs->Degree() ) bs->SetPole ( 1, p2d );
2902 else if ( fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2903 bs->Multiplicity(bs->NbKnots()) > bs->Degree() ) bs->SetPole ( bs->NbPoles(), p2d );
2904 else {
2905 bs->Segment ( first, last );
2906 if (fabs ( bs->FirstParameter() - par ) < ::Precision::PConfusion() &&
2907 bs->Multiplicity(1) > bs->Degree()) bs->SetPole ( 1, p2d );
2908 else if (fabs ( bs->LastParameter() - par ) < ::Precision::PConfusion() &&
2909 bs->Multiplicity(bs->NbKnots()) > bs->Degree()) bs->SetPole ( bs->NbPoles(), p2d );
2910 else return Standard_False;
2911 }
2912 c2d = bs;
3163e9fd 2913
2914 if ( ! TryNewPCurve ( E, face, c2d, first, last, tol ) ) return Standard_False;
7fd59977 2915 }
a738b534 2916 catch ( Standard_Failure const& ) {
0797d9d3 2917#ifdef OCCT_DEBUG
04232180 2918 std::cout << "Warning: ShapeFix_Wire::FixLacking: Exception in Geom2d_BSplineCurve::Segment()" << std::endl;
7fd59977 2919#endif
2920 return Standard_False;
2921 }
2922 }
3163e9fd 2923
7fd59977 2924 return Standard_True;
2925}
2926
2927
2928//=======================================================================
2929//function : FixLacking
2930//purpose :
2931//=======================================================================
2932
2933Standard_Boolean ShapeFix_Wire::FixLacking (const Standard_Integer num,
2934 const Standard_Boolean force)
2935{
2936 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
2937 if ( ! IsReady() ) return Standard_False;
2938
2939 //=============
2940 // First phase: analysis whether the problem (gap) exists
2941 gp_Pnt2d p2d1, p2d2;
a9dde4a3 2942 myAnalyzer->CheckLacking ( num, ( force ? Precision() : 0. ), p2d1, p2d2 );
7fd59977 2943 if ( myAnalyzer->LastCheckStatus ( ShapeExtend_FAIL ) ) {
2944 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
2945 }
2946 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE ) ) return Standard_False;
2947
2948 //=============
2949 // Second phase: collection of data necessary for further analysis
2950
2951 Handle(ShapeExtend_WireData) sbwd = WireData();
2952 Standard_Integer n2 = ( num >0 ? num : sbwd->NbEdges() );
2953 Standard_Integer n1 = ( n2 >1 ? n2-1 : sbwd->NbEdges() );
2954 TopoDS_Edge E1 = sbwd->Edge(n1);
2955 TopoDS_Edge E2 = sbwd->Edge(n2);
2956
2957 ShapeAnalysis_Edge sae;
2958 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
2959 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
2960 Standard_Real tol = Max ( BRep_Tool::Tolerance ( V1 ), BRep_Tool::Tolerance ( V2 ) );
2961
2962 Standard_Real Prec = Precision();
2963 Standard_Real dist2d = myAnalyzer->MaxDistance2d();
2964 Standard_Real inctol = myAnalyzer->MaxDistance3d();
2965
2966 TopoDS_Face face = myAnalyzer->Face();
2967 Handle(ShapeAnalysis_Surface) surf = myAnalyzer->Surface();
2968
2969 gp_Pnt p3d1, p3d2;
2970 Standard_Real tol1=::Precision::Confusion(), tol2=::Precision::Confusion(); //SK
2971
2972 //=============
2973 //:s2 abv 21 Apr 99: Speculation: try bending pcurves
1d47d8d0 2974 Standard_Real bendtol1 = 0., bendtol2 = 0.;
7fd59977 2975 Handle(Geom2d_Curve) bendc1, bendc2;
1d47d8d0 2976 Standard_Real bendf1 = 0., bendl1 = 0., bendf2 = 0., bendl2 = 0.;
7fd59977 2977 if ( myGeomMode && ! BRep_Tool::IsClosed(E1,face) && ! BRep_Tool::IsClosed(E2,face) ) {
2978 gp_Pnt2d p2d = 0.5 * ( p2d1.XY() + p2d2.XY() );
2979 Standard_Boolean ok1 = TryBendingPCurve (E1, face, p2d, E1.Orientation() == TopAbs_FORWARD,
2980 bendc1, bendf1, bendl1, bendtol1);
2981 Standard_Boolean ok2 = TryBendingPCurve (E2, face, p2d, E2.Orientation() == TopAbs_REVERSED,
2982 bendc2, bendf2, bendl2, bendtol2);
2983 if ( ok1 && ! ok2 ) {
2984 bendtol2 = BRep_Tool::Tolerance(E2);
2985 ok1 = TryBendingPCurve (E1, face, p2d2, E1.Orientation() == TopAbs_FORWARD,
2986 bendc1, bendf1, bendl1, bendtol1);
2987 }
2988 else if ( ! ok1 && ok2 ) {
2989 bendtol1 = BRep_Tool::Tolerance(E1);
2990 ok2 = TryBendingPCurve (E2, face, p2d1, E2.Orientation() == TopAbs_FORWARD,
2991 bendc2, bendf2, bendl2, bendtol2);
2992 }
2993 if ( ! ok1 && ! ok2 ) bendc1.Nullify();
2994 }
2995
2996 //=============
2997 // Third phase: analyse how to fix the problem
2998
2999 // selector of solutions
3000 Standard_Boolean doIncrease = Standard_False; // increase tolerance
3001 Standard_Boolean doAddLong = Standard_False; // add long 3d edge in replacement of a vertex
3002 Standard_Boolean doAddClosed = Standard_False; // add closed 3d edge
3003 Standard_Boolean doAddDegen = Standard_False; // add degenerated edge
3004 Standard_Boolean doBend = Standard_False; //:s2 bend pcurves
3005
3006 // if bending is OK with existing tolerances of edges, take it
3007 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
3008 ( ( bendtol1 < BRep_Tool::Tolerance(E1) &&
3009 bendtol2 < BRep_Tool::Tolerance(E2) ) ||
3010 ( inctol < Prec && bendtol1 < inctol && bendtol2 < inctol ) ) )
3011 doBend = Standard_True;
3012
3013 // is it OK just to increase tolerance (to a value less than preci)?
3014 else if ( inctol < Prec ) doIncrease = Standard_True;
3015
3016 // If increase is not OK or force, try to find other solutions (adding edge)
3017 else if ( ! BRep_Tool::Degenerated ( E2 ) && ! BRep_Tool::Degenerated ( E1 ) ) {
3018
3019 // analyze the 3d space btw edges: is it enough to add long 3d edge?
3020 if ( myTopoMode ) {
3021 Handle(Geom_Curve) c3d;
3022 Standard_Real a, b;
3023 if ( ! sae.Curve3d ( E1, c3d, a, b, Standard_True ) ) { // cannot work
3024 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
3025 return Standard_False;
3026 }
3027 p3d1 = c3d->Value ( b );
3028 Standard_Real dist2d3d1 = p3d1.Distance ( surf->Value ( p2d1 ) );
3029 if ( ! sae.Curve3d ( E2, c3d, a, b, Standard_True ) ) { // cannot work
3030 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
3031 return Standard_False;
3032 }
3033 p3d2 = c3d->Value ( a );
3034 Standard_Real dist2d3d2 = p3d2.Distance ( surf->Value ( p2d2 ) );
3035
3036 tol1 = Max ( BRep_Tool::Tolerance ( E1 ), dist2d3d1 );
3037 tol2 = Max ( BRep_Tool::Tolerance ( E2 ), dist2d3d2 );
3038 //:c5 Standard_Real tol0 = Max ( tol1 + tol2, thepreci );
3039 Standard_Real tol0 = tol1 + tol2; //:c5 abv 26 Feb 98: CTS17806 #44418
3040 Standard_Real dist3d2 = p3d1.SquareDistance ( p3d2 );
3041
3042 // is it OK to add a long 3d edge?
3043 if ( ! myAnalyzer->LastCheckStatus ( ShapeExtend_DONE2 ) && //:81 abv 20 Jan 98: don`t add back-going edges (zigzags)
3044 dist3d2 > 1.25 * tol0 * tol0 &&
3045 ( force || dist3d2 > Prec * Prec || inctol > MaxTolerance() ) ) {
3046 doAddLong = Standard_True;
3047 }
3048 }
3049
3050 //:h6 abv 25 Jun 98: BUC40132 6361: try to increase tol up to MaxTol if not add
3051 if ( ! doAddLong && inctol < MaxTolerance() &&
3052 ! myAnalyzer->Surface()->IsDegenerated ( p2d1, p2d2, 2.*tol, 10. ) ) { //:p7
3053 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
3054 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
3055 else doIncrease = Standard_True;
3056 }
3057 else
3058
3059 // else try to add either degenerated or closed edge
3060 if ( ! doAddLong ) {
3061 gp_Pnt pV = 0.5 * ( BRep_Tool::Pnt(V1).XYZ() + BRep_Tool::Pnt(V2).XYZ() );
3062 gp_Pnt pm = myAnalyzer->Surface()->Value ( 0.5 * ( p2d1.XY() + p2d2.XY() ) );
3063
3064 Standard_Real dist = pV.Distance ( pm );
3065 if ( dist <= tol ) doAddDegen = Standard_True;
3066 else if ( myTopoMode ) doAddClosed = Standard_True;
3067 else if ( dist <= MaxTolerance() ) { //:r7 abv 12 Apr 99: t3d_opt.stp #14245 after S4136
3068 doAddDegen = Standard_True;
3069 doIncrease = Standard_True;
3070 inctol = dist;
3071 }
3072 }
3073 }
3074
3075 else if ( !BRep_Tool::Degenerated(E2) && BRep_Tool::Degenerated(E1) ) {
3076 // create new degenerated edge and replace E1 to new edge
3077 }
3078 else if ( BRep_Tool::Degenerated(E2) && !BRep_Tool::Degenerated(E1) ) {
3079 // create new degenerated edge and replace E2 to new edge
3080 }
3081
3082 //=============
3083 // Third phase - do the fixes
3084 BRep_Builder B;
3085
3086 // add edge
3087 if ( doAddLong || doAddDegen || doAddClosed ) {
3088
3089 // construct new vertices
3090 TopoDS_Vertex newV1, newV2;
3091 if ( doAddLong ) {
3092 newV1 = BRepBuilderAPI_MakeVertex ( p3d1 );
3093 newV1.Reverse();
3094 newV2 = BRepBuilderAPI_MakeVertex ( p3d2 );
3095 B.UpdateVertex ( newV1, 1.001 * tol1 );
3096 B.UpdateVertex ( newV2, 1.001 * tol2 );
3097 }
3098 else {
3099 newV1 = V1;
3100 newV2 = V2;
3101 }
3102
3103 // prepare new edge
3104 TopoDS_Edge edge;
3105 B.MakeEdge ( edge );
3106 if ( doAddDegen ) B.Degenerated ( edge, Standard_True ); // sln: do it before adding curve
3107 gp_Vec2d v12 ( p2d1, p2d2 );
3108 Handle(Geom2d_Line) theLine2d = new Geom2d_Line ( p2d1, gp_Dir2d ( v12 ) );
3109 B.UpdateEdge ( edge, theLine2d, face, ::Precision::Confusion() );
3110 B.Range ( edge, face, 0, dist2d );
3111 B.Add ( edge, newV1.Oriented ( TopAbs_FORWARD ) );
3112 B.Add ( edge, newV2.Oriented ( TopAbs_REVERSED ) );
3113 ShapeBuild_Edge sbe;
3114 if ( ! doAddDegen && ! sbe.BuildCurve3d ( edge ) ) {
3115 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
3116 return Standard_False;
3117 }
3118
3119 // if long edge is added, replace vertices of adjacent edges
3120 if ( doAddLong ) {
3121
3122 // replace 1st edge (n1==n2 - special case: wire consists of one edge)
3123 TopoDS_Edge edge1 = sbe.CopyReplaceVertices ( E1,
3124 ( n1 == n2 ? newV2 : TopoDS_Vertex() ), newV1 );
3125 sbwd->Set ( edge1, n1 );
3126 if ( ! Context().IsNull() ) {
3127 Context()->Replace ( E1, edge1 );
3128 // actually, this will occur only in context of single face
3129 // hence, recording to ReShape is rather for tracking modifications
3130 // than for keeping sharing
3131 Context()->Replace ( V1, newV1.Oriented ( V1.Orientation() ) );
3132 if ( ! V1.IsSame ( V2 ) ) {
3133 Context()->Replace ( V2, newV2.Oriented ( V2.Orientation() ) );
3134 }
3135 }
3136 // replace 2nd edge
3137 if ( n1 != n2 ) {
3138 TopoDS_Edge edge2 = sbe.CopyReplaceVertices ( E2, newV2, TopoDS_Vertex() );
3139 sbwd->Set ( edge2, n2 );
3140 if ( ! Context().IsNull() ) Context()->Replace ( E2, edge2 );
3141 }
3142 if ( ! Context().IsNull() ) UpdateWire();
3143 }
3144
3145 // insert new edge
3146 if ( doAddDegen ) {
3147 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
0797d9d3 3148#ifdef OCCT_DEBUG
04232180 3149 std::cout << "Warning: ShapeFix_Wire::FixLacking: degenerated edge added" << std::endl;
7fd59977 3150#endif
3151 }
3152 else if ( ! doAddLong ) {
3153 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE4 );
3154 }
3155 sbwd->Add ( edge, n2 );
3156 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
3157 }
3158
3159 // else try to increase tol up to MaxTol
3160 else if ( inctol > tol && inctol < MaxTolerance() ) {
3161 if ( ! bendc1.IsNull() && ! bendc2.IsNull() &&
3162 bendtol1 < inctol && bendtol2 < inctol ) doBend = Standard_True;
3163 else doIncrease = Standard_True;
3164 }
3165
3166 // bend pcurves
3167 if ( doBend ) { //:s2 abv 21 Apr 99
3168 B.UpdateEdge ( E1, bendc1, face, bendtol1 );
3169 B.Range ( E1, face, bendf1, bendl1 );
3170 B.UpdateEdge ( E2, bendc2, face, bendtol2 );
3171 B.Range ( E2, face, bendf2, bendl2 );
3172 B.UpdateVertex ( sae.FirstVertex(E1), bendtol1 );
3173 B.UpdateVertex ( sae.LastVertex(E1), bendtol1 );
3174 B.UpdateVertex ( sae.FirstVertex(E2), bendtol2 );
3175 B.UpdateVertex ( sae.LastVertex(E2), bendtol2 );
3176 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
3177 //:s3 abv 22 Apr 99: PRO7187 #11534: self-intersection not detected unitil curve is bent (!)
3178 FixSelfIntersectingEdge ( n1 );
3179 FixSelfIntersectingEdge ( n2 );
3180 FixIntersectingEdges ( n2 ); //skl 24.04.2003 for OCC58
0797d9d3 3181#ifdef OCCT_DEBUG
04232180 3182 std::cout << "Info: ShapeFix_Wire::FixLacking: Bending pcurves" << std::endl;
7fd59977 3183#endif
3184 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE5 );
3185 }
3186
3187 // increase vertex tolerance
3188 if ( doIncrease ) {
3189 B.UpdateVertex ( V1, 1.001 * inctol );
3190 B.UpdateVertex ( V2, 1.001 * inctol );
3191 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
3192 }
3193
3194 if ( LastFixStatus ( ShapeExtend_DONE ) ) return Standard_True;
3195
3196 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
3197 return Standard_False;
3198}
3199
3200//=======================================================================
3201//function : FixNotchedEdges
3202//purpose :
3203//=======================================================================
3204
3205Standard_Boolean ShapeFix_Wire::FixNotchedEdges()
3206{
3207 myLastFixStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
3208 if ( ! IsReady() ) return Standard_False;
3209
a9dde4a3 3210 Handle(ShapeAnalysis_Wire) theAdvAnalyzer = myAnalyzer;
7fd59977 3211 TopoDS_Face face = Face();
3212 if ( ! Context().IsNull() ) UpdateWire();
3213 Handle(ShapeExtend_WireData) sewd = WireData();
3214
ba9cc08b 3215 for (Standard_Integer i = 1; i <= NbEdges() && NbEdges() > 2; i++) {
7fd59977 3216 Standard_Real param;
3217 Standard_Integer toRemove;
3218 if(theAdvAnalyzer->CheckNotchedEdges(i,toRemove,param,MinTolerance())){
3219 Standard_Integer n2 = (i > 0) ? i : NbEdges();
3220 Standard_Integer n1 = (n2 > 1) ? n2-1 : NbEdges();
3221 Standard_Boolean isRemoveFirst = (n1==toRemove);
3222 Standard_Integer toSplit = (n2==toRemove ? n1 : n2);
3223 TopoDS_Edge splitE = sewd->Edge ( toSplit );
3224 ShapeAnalysis_Edge sae;
3225 Handle(Geom2d_Curve) c2d;
3226 Standard_Real a, b;
3227 sae.PCurve ( splitE, face, c2d, a, b, Standard_True );
7fd59977 3228 ShapeBuild_Edge sbe;
3229 TopAbs_Orientation orient = splitE.Orientation();
258a844b 3230
3231 // check whether the whole edges should be removed - this is the case
3232 // when split point coincides with the end of the edge;
3233 // for closed edges split point may fall at the other end (see issue #0029780)
3234 if (Abs(param - (isRemoveFirst ? b : a)) <= ::Precision::PConfusion() ||
3235 (sae.IsClosed3d(splitE) && Abs(param - (isRemoveFirst ? a : b)) <= ::Precision::PConfusion()))
3236 {
3237 FixDummySeam(n1);
3238 // The seam edge is removed from the list. So, need to step back to avoid missing of edge processing
3239 i--;
3240 }
3241 else // perform splitting of the edge and adding to wire
3242 {
7fd59977 3243 //pdn check if it is necessary
3244 if( Abs((isRemoveFirst ? a : b)-param) < ::Precision::PConfusion() ) {
3245 continue;
3246 }
3247
3248 Handle(ShapeAnalysis_TransferParametersProj) transferParameters =
3249 new ShapeAnalysis_TransferParametersProj;
3250 transferParameters->SetMaxTolerance(MaxTolerance());
3251 transferParameters->Init(splitE,face);
3252 Standard_Real first, last;
3253 if (a < b ) {
3254 first = a;
3255 last = b;
3256 }
3257 else {
3258 first = b;
3259 last = a;
3260 }
3261 TopoDS_Vertex Vnew;
3262 BRep_Builder B;
3263 B.MakeVertex(Vnew,Analyzer()->Surface()->Value(c2d->Value(param)),::Precision::Confusion());
3264 TopoDS_Edge wE = splitE;
3265 wE.Orientation ( TopAbs_FORWARD );
3266 TopoDS_Shape aTmpShape = Vnew.Oriented(TopAbs_REVERSED); //for porting
3267 TopoDS_Edge newE1 = sbe.CopyReplaceVertices ( wE, sae.FirstVertex(wE), TopoDS::Vertex(aTmpShape) );
3268 sbe.CopyPCurves ( newE1, wE );
3269 transferParameters->TransferRange(newE1,first,param,Standard_True);
3270 B.SameRange(newE1,Standard_False);
3271 B.SameParameter(newE1,Standard_False);
3272 aTmpShape = Vnew.Oriented(TopAbs_FORWARD);
3273 TopoDS_Edge newE2 = sbe.CopyReplaceVertices ( wE, TopoDS::Vertex(aTmpShape),sae.LastVertex(wE) );
3274 sbe.CopyPCurves ( newE2, wE );
3275 transferParameters->TransferRange(newE2,param,last,Standard_True);
3276 B.SameRange(newE2,Standard_False);
3277 B.SameParameter(newE2,Standard_False);
3278
3279 if ( !Context().IsNull() ) {
3280 TopoDS_Wire wire;
3281 B.MakeWire(wire);
3282 B.Add(wire,newE1);
3283 B.Add(wire,newE2);
3284 Context()->Replace ( wE, wire );
3285 }
3286
3287 newE1.Orientation(orient);
3288 newE2.Orientation(orient);
3289 if (orient==TopAbs_REVERSED){ TopoDS_Edge tmp = newE2; newE2 = newE1; newE1=tmp;}
3290
3291 Standard_Boolean isRemoveLast = ((n1==NbEdges())&&(n2==1));
3292 sewd->Set ( newE1, toSplit);
3293 sewd->Add ( newE2, (toSplit==NbEdges() ? 0 : toSplit+1));
3294
3295 FixDummySeam(isRemoveLast ? NbEdges() : toRemove);
3296 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
3297 }
7fd59977 3298
3299 i--;
3300 if(!Context().IsNull()) //skl 07.03.2002 for OCC180
3301 UpdateWire();
3302 myLastFixStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
3303 }
3304 }
3305 myStatusNotches = myLastFixStatus;
3306 return LastFixStatus ( ShapeExtend_DONE );
3307}
3308
3309//=======================================================================
3310//function : FixDummySeam
3311//purpose :
3312//=======================================================================
3313
3314static void CopyReversePcurves(const TopoDS_Edge& toedge,
3315 const TopoDS_Edge& fromedge,
3316 const Standard_Boolean reverse)
3317{
3318 TopLoc_Location fromLoc = fromedge.Location();
3319 TopLoc_Location toLoc = toedge.Location();
3320 for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3321 ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3322 Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3323 if ( fromGC.IsNull() ) continue;
3324 if ( fromGC->IsCurveOnSurface() ) {
3325 Handle(Geom_Surface) surface = fromGC->Surface();
3326 TopLoc_Location L = fromGC->Location();
3327 Standard_Boolean found = Standard_False;
3328 BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3329 Handle(BRep_GCurve) toGC;
3330 for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3331 toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3332 if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3333 surface != toGC->Surface() || L != toGC->Location() ) continue;
3334 found = Standard_True;
3335 break;
3336 }
3337 if (!found) {
3338 Standard_Real fp = fromGC->First();
3339 Standard_Real lp = fromGC->Last();
3340 toGC = Handle(BRep_GCurve)::DownCast(fromGC->Copy());
3341 tolist.Append (toGC);
3342 Handle(Geom2d_Curve) pcurve = Handle(Geom2d_Curve)::DownCast( fromGC->PCurve()->Copy() );
3343 if (reverse) {
3344 fp = pcurve->ReversedParameter(fp);
3345 lp = pcurve->ReversedParameter(lp);
3346 pcurve->Reverse();
3347 Standard_Real tmp = fp;
3348 fp = lp;
3349 lp = tmp;
3350 }
3351 //bug OCC209 invalid location of pcurve in the edge after copying
3352 TopLoc_Location newLoc = (fromLoc*L).Predivided(toLoc);
3353 toGC->SetRange(fp,lp);
3354 toGC->PCurve(pcurve);
3355 toGC->Location(newLoc);
3356 if ( fromGC->IsCurveOnClosedSurface() ) {
3357 pcurve = fromGC->PCurve2();
3358 toGC->PCurve2(Handle(Geom2d_Curve)::DownCast(pcurve->Copy()));
3359 }
3360 }
3361 }
3362 }
3363}
3364
3365//=======================================================================
3366//function : HasNewPCurves
3367//purpose :
3368//=======================================================================
3369// Note: This function temporarily not used, because adress to it in
3370// function FixDummySeam() (see below line 2472) not used too
3371//
3372//static Standard_Boolean HasNewPCurves(const TopoDS_Edge& toedge,
3373// const TopoDS_Edge& fromedge)
3374//
3375//{
3376// for (BRep_ListIteratorOfListOfCurveRepresentation fromitcr
3377// ((*((Handle(BRep_TEdge)*)&fromedge.TShape()))->ChangeCurves()); fromitcr.More(); fromitcr.Next()) {
3378// Handle(BRep_GCurve) fromGC = Handle(BRep_GCurve)::DownCast(fromitcr.Value());
3379// if ( fromGC.IsNull() ) continue;
3380// if ( fromGC->IsCurveOnSurface() ) {
3381// Handle(Geom_Surface) surface = fromGC->Surface();
3382// TopLoc_Location L = fromGC->Location();
3383// Standard_Boolean found = Standard_False;
3384// BRep_ListOfCurveRepresentation& tolist = (*((Handle(BRep_TEdge)*)&toedge.TShape()))->ChangeCurves();
3385// Handle(BRep_GCurve) toGC;
3386// for (BRep_ListIteratorOfListOfCurveRepresentation toitcr (tolist); toitcr.More() && !found; toitcr.Next()) {
3387// toGC = Handle(BRep_GCurve)::DownCast(toitcr.Value());
3388// if ( toGC.IsNull() || !toGC->IsCurveOnSurface() ||
3389// surface != toGC->Surface() || L != toGC->Location() ) continue;
3390// found = Standard_True;
3391// break;
3392// }
3393// if (!found)
3394// return Standard_True;
3395// }
3396// }
3397// return Standard_False;
3398//}
3399
3400//=======================================================================
3401//function : FixDummySeam
3402//purpose :
3403//=======================================================================
3404
3405void ShapeFix_Wire::FixDummySeam(const Standard_Integer num)
3406{
3407 ShapeAnalysis_Edge sae;
3408 ShapeBuild_Edge sbe;
3409 ShapeBuild_Vertex sbv;
3410 Standard_Integer num1 = (num == NbEdges()) ? 1 : num+1;
3411 Handle(ShapeExtend_WireData) sewd = WireData();
3412 TopoDS_Edge E1 = sewd->Edge(num), E2 = sewd->Edge(num1);
3413 TopoDS_Vertex V1 = sae.FirstVertex(E1), V2 = sae.LastVertex(E2);
3414 TopoDS_Vertex Vm = sbv.CombineVertex ( V1, V2, 1.0001 );
3415
3416 //pnd defining if new pcurves exists
3417 //pdn Temporary not removed
3418// Standard_Boolean toRemove = !(HasNewPCurves(E1,E2)||HasNewPCurves(E2,E1));
3419 Standard_Boolean toRemove = Standard_False;
3420
3421 //creating new edge with pcurves and new vertex
3422 TopoDS_Vertex Vs = sae.FirstVertex(E2);
3423 if ( Vs.IsSame ( V1 ) || Vs.IsSame ( V2 ) ) Vs = Vm;
3424 TopoDS_Edge newEdge = sbe.CopyReplaceVertices ( E2, Vs, Vm );
3425 CopyReversePcurves(newEdge,E1,E1.Orientation()==E2.Orientation());
3426 BRep_Builder B;
3427 B.SameRange(newEdge,Standard_False);
3428 B.SameParameter(newEdge,Standard_False);
3429
3430 if ( !Context().IsNull() ) {
3431 if (toRemove) {
3432 Context()->Remove ( E2 );
3433 Context()->Remove ( E1 );
3434 }
3435 else {
3436 Context()->Replace ( E2, newEdge );
3437 Context()->Replace ( E1, newEdge.Reversed());
3438 }
3439 Context()->Replace ( V1, Vm.Oriented(V1.Orientation()) );
3440 Context()->Replace ( V2, Vm.Oriented(V2.Orientation()) );
3441 }
3442
3443 Standard_Integer next = ( num1 == NbEdges()) ? 1 : num1+1;
3444 Standard_Integer prev = ( num > 1) ? num-1 : NbEdges();
3445 TopoDS_Edge prevE = sewd->Edge(prev), nextE = sewd->Edge(next);
3446
3447 TopoDS_Edge tmpE1=sbe.CopyReplaceVertices( prevE, TopoDS_Vertex(), Vm);
3448 sewd->Set ( tmpE1,prev );
3449 if ( !Context().IsNull() ) Context()->Replace ( prevE, tmpE1);
3450
3451 tmpE1 = sbe.CopyReplaceVertices ( nextE, Vm, TopoDS_Vertex());
3452 sewd->Set ( tmpE1,next );
3453 if ( !Context().IsNull() ) Context()->Replace ( nextE, tmpE1);
3454
3455 //removing edges from wire
3456 Standard_Integer n1, n2;
3457 if ( num < num1 ) {
3458 n1 = num; n2 = num1;
3459 } else {
3460 n1 = num1; n2 = num;
3461 }
3462 sewd->Remove(n2);
3463 sewd->Remove(n1);
3464}
3465
3466//=======================================================================
3467//function : UpdateWire
3468//purpose :
3469//=======================================================================
3470
3471void ShapeFix_Wire::UpdateWire ()
3472{
3473 Handle(ShapeExtend_WireData) sbwd = WireData();
3474 for ( Standard_Integer i=1; i <= sbwd->NbEdges(); i++ ) {
3475 TopoDS_Edge E = sbwd->Edge(i);
3476 TopoDS_Shape S = Context()->Apply ( E );
3477 if ( S == E ) continue;
3478 for ( TopExp_Explorer exp(S,TopAbs_EDGE); exp.More(); exp.Next() )
3479 sbwd->Add ( exp.Current(), i++ );
3480 sbwd->Remove ( i-- );
3481 }
3482}
fbf3becf 3483
3484//=======================================================================
3485//function : FixTails
3486//purpose :
3487//=======================================================================
3488Standard_Boolean ShapeFix_Wire::FixTails()
3489{
3490 if (myMaxTailWidth < 0 || !IsReady())
3491 {
3492 return Standard_False;
3493 }
3494
3495 myLastFixStatus = ShapeExtend::EncodeStatus(ShapeExtend_OK);
3496 if (!Context().IsNull())
3497 {
3498 UpdateWire();
3499 }
3500 Handle(ShapeExtend_WireData) aSEWD = WireData();
3501 Standard_Integer aECount = NbEdges(), aENs[] = {aECount, 1};
3502 Standard_Boolean aCheckAngle = Standard_True;
3503 while (aECount >= 2 && aENs[1] <= aECount)
3504 {
3505 const TopoDS_Edge aEs[] = {aSEWD->Edge(aENs[0]), aSEWD->Edge(aENs[1])};
3506 TopoDS_Edge aEParts[2][2];
3507 if (!myAnalyzer->CheckTail(aEs[0], aEs[1],
3508 aCheckAngle ? myMaxTailAngleSine : -1, myMaxTailWidth, MaxTolerance(),
3509 aEParts[0][0], aEParts[0][1], aEParts[1][0], aEParts[1][1]))
3510 {
3511 aENs[0] = aENs[1]++;
3512 aCheckAngle = Standard_True;
3513 continue;
3514 }
3515
3516 // Provide not less than 1 edge in the result wire.
3517 Standard_Integer aSplitCounts[] =
3518 {aEParts[0][1].IsNull() ? 0 : 1, aEParts[1][1].IsNull() ? 0 : 1};
3519 const Standard_Integer aRemoveCount =
3520 (aEParts[0][0].IsNull() ? 0 : 1) + (aEParts[1][0].IsNull() ? 0 : 1);
3521 if (aECount + aSplitCounts[0] + aSplitCounts[1] < 1 + aRemoveCount)
3522 {
3523 aENs[0] = aENs[1]++;
3524 aCheckAngle = Standard_True;
3525 continue;
3526 }
3527
3528 // Split the edges.
3529 for (Standard_Integer aEI = 0; aEI < 2; ++aEI)
3530 {
3531 if (aSplitCounts[aEI] == 0)
3532 {
3533 continue;
3534 }
3535
3536 // Replace the edge by the wire of its parts in the shape.
3537 const TopoDS_Edge aE = aEs[aEI];
3538 if (!Context().IsNull())
3539 {
3540 TopoDS_Wire aEWire;
3541 BRep_Builder().MakeWire(aEWire);
3542 BRep_Builder().Add(aEWire, aEParts[aEI][0]);
3543 BRep_Builder().Add(aEWire, aEParts[aEI][1]);
3544 TopoDS_Edge aFE = TopoDS::Edge(aE.Oriented(TopAbs_FORWARD));
3545 Context()->Replace(aFE, aEWire);
3546 }
3547
3548 // Replace the edge by its parts in the edge wire.
3549 const TopAbs_Orientation aOrient = aE.Orientation();
3550 aEParts[aEI][0].Orientation(aOrient);
3551 aEParts[aEI][1].Orientation(aOrient);
3552 const Standard_Integer aFirstPI = (aOrient != TopAbs_REVERSED) ? 0 : 1;
3553 const Standard_Integer aAdd =
3554 (aEI == 0 || aENs[1] < aENs[0]) ? 0 : aSplitCounts[0];
3555 aSEWD->Set(aEParts[aEI][aFirstPI], aENs[aEI] + aAdd);
3556 aSEWD->Add(aEParts[aEI][1 - aFirstPI], aENs[aEI] + 1 + aAdd);
3557 }
3558
3559 // Remove the tail.
3560 if (aRemoveCount == 2)
3561 {
3562 aCheckAngle = Standard_True;
3563 FixDummySeam(aENs[0] + aSplitCounts[0] +
3564 ((aENs[0] < aENs[1]) ? 0 : aSplitCounts[1]));
3565 if (!Context().IsNull())
3566 {
3567 UpdateWire();
3568 }
3569 myLastFixStatus |= ShapeExtend::EncodeStatus(ShapeExtend_DONE);
3570
3571 if (aSplitCounts[0] + aSplitCounts[1] == 2)
3572 {
3573 aENs[0] = aENs[1]++;
3574 continue;
3575 }
3576
3577 if (aSplitCounts[0] == aSplitCounts[1])
3578 {
3579 aECount -= 2;
3580 if (aENs[1] >= 3)
3581 {
3582 --aENs[0];
3583 --aENs[1];
3584 }
3585 else
3586 {
3587 aENs[0] = aECount;
3588 aENs[1] = 1;
3589 }
3590 aCheckAngle = Standard_False;
3591 }
3592 else
3593 {
3594 --aECount;
3595 if (aSplitCounts[0] != 0)
3596 {
3597 aENs[0] = (aENs[0] <= aECount) ? aENs[0] : aECount;
3598 }
3599 else
3600 {
3601 if (aENs[1] >= 3)
3602 {
3603 --aENs[0];
3604 --aENs[1];
3605 }
3606 else
3607 {
3608 aENs[0] = aECount;
3609 aENs[1] = 1;
3610 }
3611 }
3612 }
3613 }
3614 else
3615 {
3616 aCheckAngle = Standard_False;
3617 --aECount;
3618 const Standard_Integer aRI = aEParts[0][0].IsNull() ? 1 : 0;
3619 if (aSplitCounts[aRI] != 0)
3620 {
3621 if (aRI == 0)
3622 {
3623 if (aENs[1] >= 3)
3624 {
3625 --aENs[0];
3626 --aENs[1];
3627 }
3628 else
3629 {
3630 aENs[0] = aECount;
3631 aENs[1] = 1;
3632 }
3633 }
3634 else
3635 {