Integration of OCCT 6.5.0 from SVN
[occt.git] / src / ShapeAnalysis / ShapeAnalysis_Wire.cxx
CommitLineData
7fd59977 1// File: ShapeAnalysis_Wire.cxx
2// Created: Thu Jan 20 14:46:55 2000
3// Author: data exchange team
4// <det@nnov>
5
6//:pdn 11.12.98: FixDegenerated improved
7//:pdn 05.01.99: renaming method CheckLittle to CheckSmall
8//:l0 abv 10.01.99: CATIA01 #1727: fix intersecting edges always if edge is lacking
9//:n2 abv 22.01.99: ma-test5.igs: IGES read (pref3d): remove degen edge with no pcurve
10//:o4 abv 17.02.99: r0301_db.stp #53082: adding parameter isClosed to CheckOrder
11// rln 03.03.99 S4135: using updated ShapeAnalysis_Surface for checking of singularities
12//:p9 abv 11.03.99: PRO7226 #489490: fix :i9 moved to allow fixing a set of degenerated edges
13//#77 rln 11.03.99: S4135: using singularity which has minimum gap between singular point and input 3D point
14//#84 rln 18.03.99: inserting degenerated edge between ends of pcurves
15//pdn 12.03.99 S4135 check degenerated applies minimal tolerance first.
16//pdn 16.03.99 S4135 adding check of non adjacent edjes.
17//#83 rln 19.03.99: processing segments in intersection as in BRepCheck
18//%15 pdn 15.03.99 checking of small area wire added
19//#2 smh 26.03.99 S4163 Zero divide
20//#4 szv S4163 optimizing
21//:r6 abv 08.04.99: protect FixIE against working out of curve range
22//:s1 abv 22.04.99: PRO7226 #489490: ensure fixing of degenerated edge
23//#9 smh 14.12.99 BUC60615 Using tolerance of verteces during checking degenerated edge.
24
25#include <ShapeAnalysis_Wire.ixx>
26
27#include <Precision.hxx>
28
29#include <Geom_Curve.hxx>
30#include <Geom2d_Curve.hxx>
31#include <GeomAdaptor_HSurface.hxx>
32#include <Geom2dAdaptor_Curve.hxx>
33#include <Geom2dInt_GInter.hxx>
34#include <IntRes2d_Domain.hxx>
35#include <IntRes2d_Transition.hxx>
36#include <IntRes2d_IntersectionPoint.hxx>
37#include <IntRes2d_IntersectionSegment.hxx>
38
39#include <TopoDS_Edge.hxx>
40#include <TopoDS_Vertex.hxx>
41#include <BRep_Builder.hxx>
42#include <BRep_Tool.hxx>
43#include <BRepTools.hxx>
44
45#include <ShapeExtend.hxx>
46#include <ShapeAnalysis.hxx>
47#include <ShapeAnalysis_Curve.hxx>
48#include <ShapeAnalysis_Edge.hxx>
49
50#include <TopoDS.hxx>
51#include <Precision.hxx>
52#include <TColgp_Array1OfPnt.hxx>
53#include <TColStd_Array1OfReal.hxx>
54#include <Bnd_Array1OfBox2d.hxx>
55#include <BndLib_Add2dCurve.hxx>
56#include <Bnd_Box2d.hxx>
57
58//szvsh addition
59#include <Geom2dAdaptor_HCurve.hxx>
60#include <Adaptor3d_CurveOnSurface.hxx>
61#include <TColgp_SequenceOfPnt.hxx>
62#include <ShapeAnalysis_Surface.hxx>
63#include <TopoDS_Wire.hxx>
64#include <ShapeAnalysis.hxx>
65#include <Geom_Plane.hxx>
66#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
67#include <TopoDS_Iterator.hxx>
68#include <TopTools_DataMapOfShapeListOfShape.hxx>
69#include <TopTools_ListOfShape.hxx>
70#include <TopTools_IndexedMapOfShape.hxx>
71#include <TopTools_ListIteratorOfListOfShape.hxx>
72#include <TopExp.hxx>
73
74//=======================================================================
75//function : ShapeAnalysis_Wire
76//purpose :
77//=======================================================================
78
79ShapeAnalysis_Wire::ShapeAnalysis_Wire()
80{
81 ClearStatuses();
82 myPrecision = ::Precision::Confusion();
83}
84
85//=======================================================================
86//function : ShapeAnalysis_Wire
87//purpose :
88//=======================================================================
89
90ShapeAnalysis_Wire::ShapeAnalysis_Wire (const TopoDS_Wire& wire,
91 const TopoDS_Face& face,
92 const Standard_Real precision)
93{
94 Init (wire, face, precision);
95}
96
97//=======================================================================
98//function : ShapeAnalysis_Wire
99//purpose :
100//=======================================================================
101
102ShapeAnalysis_Wire::ShapeAnalysis_Wire (const Handle(ShapeExtend_WireData)& sbwd,
103 const TopoDS_Face& face,
104 const Standard_Real precision)
105{
106 Init (sbwd, face, precision);
107}
108
109//=======================================================================
110//function : Init
111//purpose :
112//=======================================================================
113
114void ShapeAnalysis_Wire::Init (const TopoDS_Wire& wire,
115 const TopoDS_Face& face, const Standard_Real precision)
116{
117 Init (new ShapeExtend_WireData (wire), face, precision);
118}
119
120//=======================================================================
121//function : Init
122//purpose :
123//=======================================================================
124
125void ShapeAnalysis_Wire::Init (const Handle(ShapeExtend_WireData)& sbwd,
126 const TopoDS_Face& face, const Standard_Real precision)
127{
128 Load (sbwd);
129 SetFace (face);
130 SetPrecision (precision);
131}
132
133//=======================================================================
134//function : Load
135//purpose :
136//=======================================================================
137
138void ShapeAnalysis_Wire::Load (const TopoDS_Wire& wire)
139{
140 ClearStatuses();
141 myWire = new ShapeExtend_WireData (wire);
142}
143
144//=======================================================================
145//function : Load
146//purpose :
147//=======================================================================
148
149void ShapeAnalysis_Wire::Load (const Handle(ShapeExtend_WireData)& sbwd)
150{
151 ClearStatuses();
152 myWire = sbwd;
153}
154
155//=======================================================================
156//function : SetFace
157//purpose :
158//=======================================================================
159
160void ShapeAnalysis_Wire::SetFace(const TopoDS_Face& face)
161{
162 myFace = face;
163 if(!face.IsNull())
164 mySurf = new ShapeAnalysis_Surface ( BRep_Tool::Surface ( myFace ) );
165}
166
167//=======================================================================
168//function : SetSurface
169//purpose :
170//=======================================================================
171
172void ShapeAnalysis_Wire::SetSurface (const Handle(Geom_Surface)& surface)
173{
174 SetSurface ( surface, TopLoc_Location() );
175}
176
177//=======================================================================
178//function : SetSurface
179//purpose :
180//=======================================================================
181
182void ShapeAnalysis_Wire::SetSurface (const Handle(Geom_Surface)& surface,
183 const TopLoc_Location& location)
184{
185 BRep_Builder B;
186 TopoDS_Face face;
187 B.MakeFace ( face, surface, location, ::Precision::Confusion() );
188 SetFace ( face );
189}
190
191//=======================================================================
192//function : SetPrecision
193//purpose :
194//=======================================================================
195
196 void ShapeAnalysis_Wire::SetPrecision(const Standard_Real precision)
197{
198 myPrecision = precision;
199}
200
201//=======================================================================
202//function : ClearStatuses
203//purpose :
204//=======================================================================
205
206 void ShapeAnalysis_Wire::ClearStatuses()
207{
208 myStatusOrder = myStatusConnected =
209 myStatusEdgeCurves = myStatusDegenerated =
210 myStatusClosed = myStatusLacking =
211 myStatusSelfIntersection = myStatusSmall =
212 myStatusGaps3d = myStatusGaps2d =
213 myStatusCurveGaps = myStatusLoop = myStatus = 0;
214
215 myMin3d = myMin2d = myMax3d = myMax2d = 0.;
216}
217
218//=======================================================================
219//function : Perform
220//purpose :
221//=======================================================================
222
223 Standard_Boolean ShapeAnalysis_Wire::Perform()
224{
225 Standard_Boolean result = Standard_False;
226 result |= CheckOrder();
227 result |= CheckSmall();
228 result |= CheckConnected();
229 result |= CheckEdgeCurves();
230 result |= CheckDegenerated();
231 result |= CheckSelfIntersection();
232 result |= CheckLacking();
233 result |= CheckClosed();
234 return result;
235}
236
237//=======================================================================
238//function : CheckOrder
239//purpose :
240//=======================================================================
241
242 Standard_Boolean ShapeAnalysis_Wire::CheckOrder (const Standard_Boolean isClosed,
243 const Standard_Boolean mode3d)
244{
245 ShapeAnalysis_WireOrder sawo;
246 CheckOrder (sawo, isClosed, mode3d);
247 myStatusOrder = myStatus;
248 return StatusOrder (ShapeExtend_DONE);
249}
250
251//=======================================================================
252//function : CheckSmall
253//purpose :
254//=======================================================================
255
256 Standard_Boolean ShapeAnalysis_Wire::CheckSmall(const Standard_Real precsmall)
257{
258 for (Standard_Integer i = 1; i <= myWire->NbEdges(); i++) {
259 CheckSmall (i, precsmall);
260 myStatusSmall |= myStatus;
261 }
262 return StatusSmall (ShapeExtend_DONE);
263}
264
265//=======================================================================
266//function : CheckConnected
267//purpose :
268//=======================================================================
269
270 Standard_Boolean ShapeAnalysis_Wire::CheckConnected(const Standard_Real prec)
271{
272 for (Standard_Integer i = 1; i <= myWire->NbEdges(); i++) {
273 CheckConnected ( i, prec );
274 myStatusConnected |= myStatus;
275 }
276 return StatusConnected (ShapeExtend_DONE);
277}
278
279//=======================================================================
280//function : CheckEdgeCurves
281//purpose :
282//=======================================================================
283
284 Standard_Boolean ShapeAnalysis_Wire::CheckEdgeCurves()
285{
286 myStatusEdgeCurves = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
287 if ( ! IsReady() ) return Standard_False;
288
289 Standard_Integer i, nb = myWire->NbEdges();
290 ShapeAnalysis_Edge SAE;
291
292 for (i = 1; i <= nb; i++) {
293 TopoDS_Edge E = myWire->Edge (i);
294
295 SAE.CheckCurve3dWithPCurve (E, myFace);
296 if (SAE.Status (ShapeExtend_DONE))
297 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
298 if (SAE.Status ( ShapeExtend_FAIL))
299 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
300
301 SAE.CheckVerticesWithPCurve (E, myFace);
302 if (SAE.Status (ShapeExtend_DONE))
303 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE2);
304 if (SAE.Status ( ShapeExtend_FAIL))
305 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
306
307 SAE.CheckVerticesWithCurve3d (E);
308 if (SAE.Status (ShapeExtend_DONE))
309 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE3);
310 if (SAE.Status ( ShapeExtend_FAIL))
311 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
312
313 CheckSeam (i);
314 if (LastCheckStatus (ShapeExtend_DONE))
315 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE4);
316 if (LastCheckStatus (ShapeExtend_FAIL))
317 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL4);
318
319 CheckGap3d (i);
320 if (LastCheckStatus (ShapeExtend_DONE))
321 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE5);
322 if (LastCheckStatus (ShapeExtend_FAIL))
323 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL5);
324
325 CheckGap2d (i);
326 if (LastCheckStatus (ShapeExtend_DONE))
327 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE6);
328 if (LastCheckStatus (ShapeExtend_FAIL))
329 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL6);
330
331 Standard_Real maxdev = 0.0;
332 SAE.CheckSameParameter (myWire->Edge (i), maxdev);
333 if (SAE.Status (ShapeExtend_DONE))
334 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_DONE7);
335 if (SAE.Status ( ShapeExtend_FAIL))
336 myStatusEdgeCurves |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL7);
337 }
338 return StatusEdgeCurves (ShapeExtend_DONE);
339}
340
341//=======================================================================
342//function : CheckDegenerated
343//purpose :
344//=======================================================================
345
346 Standard_Boolean ShapeAnalysis_Wire::CheckDegenerated()
347{
348 for (Standard_Integer i = 1; i <= myWire->NbEdges(); i++) {
349 CheckDegenerated (i);
350 myStatusDegenerated |= myStatus;
351 }
352 return StatusDegenerated (ShapeExtend_DONE);
353}
354
355//=======================================================================
356//function : CheckSelfIntersection
357//purpose :
358//=======================================================================
359
360 Standard_Boolean ShapeAnalysis_Wire::CheckSelfIntersection()
361{
362 myStatusSelfIntersection = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
363 if (!IsReady()) return Standard_False;
364 Standard_Integer i, nb = myWire->NbEdges();
365 for (i = 1; i <= nb; i++) {
366 CheckSelfIntersectingEdge (i);
367 if (LastCheckStatus (ShapeExtend_DONE))
368 myStatusSelfIntersection |= ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
369 if (LastCheckStatus (ShapeExtend_FAIL))
370 myStatusSelfIntersection |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
371
372 CheckIntersectingEdges (i);
373 if (LastCheckStatus (ShapeExtend_DONE))
374 myStatusSelfIntersection |= ShapeExtend::EncodeStatus (ShapeExtend_DONE2);
375 if (LastCheckStatus (ShapeExtend_FAIL))
376 myStatusSelfIntersection |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
377 }
378
379 Bnd_Array1OfBox2d boxes(1,nb);
380 TopLoc_Location L;
381 const Handle(Geom_Surface)& S = BRep_Tool::Surface(Face(), L);
382 Handle(Geom2d_Curve) c2d;
383 Standard_Real cf,cl;
384 ShapeAnalysis_Edge sae;
385 Handle(ShapeExtend_WireData) sbwd = WireData();
386 for(i = 1; i <= nb; i++){
387 TopoDS_Edge E = sbwd->Edge (i);
388 if(sae.PCurve (E,S,L,c2d,cf,cl,Standard_False)) {
389 Bnd_Box2d box;
390 Geom2dAdaptor_Curve gac(c2d,cf,cl);
391 BndLib_Add2dCurve::Add(gac,::Precision::Confusion(),box);
392 boxes(i) = box;
393 }
394 }
395
396 Standard_Boolean isFail = Standard_False, isDone = Standard_False;
397 for(Standard_Integer num1 = 1; num1 < nb-1; num1++) {
398 Standard_Integer fin = (num1 == 1 ? nb-1 : nb);
399 for(Standard_Integer num2 = num1+2; num2 <= fin; num2++)
400 if(!boxes(num1).IsOut(boxes(num2))){
401 CheckIntersectingEdges(num1, num2);
402 isFail |= LastCheckStatus ( ShapeExtend_FAIL1 );
403 isDone |= LastCheckStatus ( ShapeExtend_DONE1 );
404 }
405 }
406 if(isFail)
407 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
408 if(isDone)
409 myStatusSelfIntersection |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
410
411 return StatusSelfIntersection (ShapeExtend_DONE);
412}
413
414//=======================================================================
415//function : CheckLacking
416//purpose :
417//=======================================================================
418
419 Standard_Boolean ShapeAnalysis_Wire::CheckLacking()
420{
421 if (!IsReady() || NbEdges() < 2) return Standard_False;
422 for (Standard_Integer i = 1; i <= myWire->NbEdges(); i++) {
423 CheckLacking (i);
424 myStatusLacking |= myStatus;
425 }
426 return StatusLacking (ShapeExtend_DONE);
427}
428
429//=======================================================================
430//function : CheckClosed
431//purpose :
432//=======================================================================
433
434 Standard_Boolean ShapeAnalysis_Wire::CheckClosed(const Standard_Real prec)
435{
436 myStatusClosed = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
437 if (!IsReady() || NbEdges() < 1) return Standard_False;
438
439 CheckConnected (1, prec);
440 if ( LastCheckStatus ( ShapeExtend_DONE ) )
441 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
442 if ( LastCheckStatus ( ShapeExtend_FAIL ) )
443 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL1 );
444
445 CheckDegenerated ( 1 );
446 if ( LastCheckStatus ( ShapeExtend_DONE ) )
447 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
448 if ( LastCheckStatus ( ShapeExtend_FAIL ) )
449 myStatusClosed |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
450
451 return StatusClosed ( ShapeExtend_DONE );
452}
453
454//=======================================================================
455//function : CheckGaps3d
456//purpose :
457//=======================================================================
458
459 Standard_Boolean ShapeAnalysis_Wire::CheckGaps3d ()
460{
461 myStatusGaps3d = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
462 if (!IsLoaded() || NbEdges() < 1) return Standard_False; //gka IsLoaded
463
464 Standard_Real dist, maxdist = 0.;
465
466 for (Standard_Integer i = 1; i <= NbEdges(); i++) {
467 CheckGap3d(i);
468 myStatusGaps3d |= myStatus;
469 if (!LastCheckStatus(ShapeExtend_FAIL1)) {
470 dist = MinDistance3d();
471 if (maxdist<dist) maxdist = dist;
472 }
473 }
474 myMin3d = myMax3d = maxdist;
475
476 return StatusGaps3d ( ShapeExtend_DONE );
477}
478
479//=======================================================================
480//function : CheckGaps2d
481//purpose :
482//=======================================================================
483
484 Standard_Boolean ShapeAnalysis_Wire::CheckGaps2d ()
485{
486 myStatusGaps2d = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
487 if (!IsReady() || NbEdges() < 1) return Standard_False;
488
489 Standard_Real dist, maxdist = 0.;
490
491 for (Standard_Integer i = 1; i <= NbEdges(); i++) {
492 CheckGap2d(i);
493 myStatusGaps2d |= myStatus;
494 if (!LastCheckStatus(ShapeExtend_FAIL1)) {
495 dist = MinDistance2d();
496 if (maxdist<dist) maxdist = dist;
497 }
498 }
499 myMin2d = myMax2d = maxdist;
500
501 return StatusGaps2d ( ShapeExtend_DONE );
502}
503
504//=======================================================================
505//function : CheckCurveGaps
506//purpose :
507//=======================================================================
508
509 Standard_Boolean ShapeAnalysis_Wire::CheckCurveGaps ()
510{
511 myStatusCurveGaps = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
512 if (!IsReady() || NbEdges() < 1) return Standard_False;
513
514 Standard_Real dist, maxdist = 0.;
515
516 for (Standard_Integer i = 1; i <= NbEdges(); i++) {
517 CheckCurveGap(i);
518 myStatusCurveGaps |= myStatus;
519 if (!LastCheckStatus(ShapeExtend_FAIL1)) {
520 dist = MinDistance3d();
521 if (maxdist<dist) maxdist = dist;
522 }
523 }
524 myMin3d = myMax3d = maxdist;
525
526 return StatusCurveGaps ( ShapeExtend_DONE );
527}
528
529//=======================================================================
530//function : CheckOrder
531//purpose :
532//=======================================================================
533
534Standard_Boolean ShapeAnalysis_Wire::CheckOrder(ShapeAnalysis_WireOrder& sawo,
535 const Standard_Boolean isClosed,
536 const Standard_Boolean mode3d)
537{
538 if ( ! mode3d && myFace.IsNull() ) {
539 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
540 return Standard_False;
541 }
542
543 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
544 sawo.SetMode ( mode3d, ( mode3d ? myPrecision : ::Precision::PConfusion() ) );
545 Standard_Integer i, nb = myWire->NbEdges();
546 ShapeAnalysis_Edge EA;
547 for (i = 1; i <= nb; i ++) {
548 TopoDS_Edge E = myWire->Edge(i);
549 if ( mode3d ) {
550 TopoDS_Vertex V1 = EA.FirstVertex (E);
551 TopoDS_Vertex V2 = EA.LastVertex (E);
552 gp_Pnt p1 = BRep_Tool::Pnt (V1);
553 gp_Pnt p2 = BRep_Tool::Pnt (V2);
554 sawo.Add (p1.XYZ(),p2.XYZ());
555 }
556 else {
557 Standard_Real f,l;
558 Handle(Geom2d_Curve) c2d;
559 TopoDS_Shape tmpF = myFace.Oriented(TopAbs_FORWARD);
560 if ( ! EA.PCurve(E,TopoDS::Face(tmpF),c2d,f,l) ) {
561 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
562 return Standard_False;
563 }
564 sawo.Add(c2d->Value(f).XY(),c2d->Value(l).XY());
565 }
566 }
567 sawo.Perform(isClosed);
568 Standard_Integer stat = sawo.Status();
569 switch (stat) {
570 case 0: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK); break;
571 case 1: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1); break;
572 case 2: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE2); break;
573 case -1: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE3); break;
574 case -2: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE4); break;
575 case -10: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1); break;
576 }
577 return LastCheckStatus (ShapeExtend_DONE);
578}
579
580//=======================================================================
581//function : CheckConnected
582//purpose :
583//=======================================================================
584
585Standard_Boolean ShapeAnalysis_Wire::CheckConnected (const Standard_Integer num,
586 const Standard_Real prec)
587{
588 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
589 if ( ! IsLoaded() || NbEdges() < 1 ) return Standard_False;
590
591 Standard_Integer n2 = ( num >0 ? num : NbEdges() );
592 Standard_Integer n1 = ( n2 >1 ? n2-1 : NbEdges() );
593// if (n1 == n2) return 0;
594
595 TopoDS_Edge E1 = WireData()->Edge ( n1 );
596 TopoDS_Edge E2 = WireData()->Edge ( n2 );
597
598 ShapeAnalysis_Edge sae;
599 TopoDS_Vertex V1 = sae.LastVertex (E1);
600 TopoDS_Vertex V2 = sae.FirstVertex (E2);
601 if (V1.IsSame(V2)) return Standard_False;
602
603 gp_Pnt p1 = BRep_Tool::Pnt (V1);
604 gp_Pnt p2 = BRep_Tool::Pnt (V2);
605 myMin3d = p1.Distance(p2);
606 if ( myMin3d <= gp::Resolution() ) myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
607 else if ( myMin3d <= myPrecision ) myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE2);
608 else if ( myMin3d <= prec ) myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE3);
609 else {
610 // et en inversant la derniere edge ?
611 if ( n1 == n2 ) myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
612 else {
613 V2 = sae.LastVertex (E2);
614 p2 = BRep_Tool::Pnt (V2);
615 Standard_Real dist = p1.Distance(p2);
616 if ( dist > myPrecision ) myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
617 else {
618 myMin3d = dist;
619 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
620 }
621 }
622 return Standard_False;
623 }
624 return Standard_True;
625}
626
627//=======================================================================
628//function : CheckSmall
629//purpose :
630//=======================================================================
631
632Standard_Boolean ShapeAnalysis_Wire::CheckSmall (const Standard_Integer num,
633 const Standard_Real precsmall)
634{
635 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
636 if ( ! IsLoaded() || NbEdges() <= 1 ) return Standard_False;
637
638 //Standard_Integer n = ( num ? num : NbEdges() ); //szv#4:S4163:12Mar99 not needed
639 TopoDS_Edge E = myWire->Edge ( num ? num : NbEdges() );
640 ShapeAnalysis_Edge sae;
641
642 if ( BRep_Tool::Degenerated ( E ) ) {
643 //:n2 abv 22 Jan 99: ma-test5.igs -> IGES (brep) -> read (pref3d):
644 // degen edge with no pcurve should be removed
645 if ( ! myFace.IsNull() && sae.HasPCurve ( E, Face() ) ) return Standard_False;
646 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
647 }
648
649 TopoDS_Vertex V1 = sae.FirstVertex (E);
650 TopoDS_Vertex V2 = sae.LastVertex (E);
651 gp_Pnt p1 = BRep_Tool::Pnt (V1);
652 gp_Pnt p2 = BRep_Tool::Pnt (V2);
653 Standard_Real dist = p1.Distance(p2);
654 Standard_Real prec = precsmall;//Min ( myPrecision, precsmall );
655 //Standard_Real prec = Min(BRep_Tool::Tolerance(V1),BRep_Tool::Tolerance(V2)); //skl
656 if (dist > prec) return Standard_False; // pas nulle
657
658 // La courbe 3D a present : est-elle FERMEE ou DE LONGUEUR NULLE ... ???
659 // Pour cela on prend le point milieu (y a-t-il mieux)
660 // Si pas de C3D, on essaie la C2D ...
661
662 gp_Pnt Pm;
663 Standard_Real cf,cl;
664 Handle(Geom_Curve) c3d;
665 if ( sae.Curve3d (E,c3d,cf,cl,Standard_False) ) Pm = c3d->Value ( (cf+cl)/2. );
666 else {
667 Handle(Geom2d_Curve) c2d;
668 if ( ! myFace.IsNull() && sae.PCurve (E,myFace,c2d,cf,cl,Standard_False)) {
669 gp_Pnt2d p2m = c2d->Value ( (cf+cl)/2. );
670 Pm = mySurf->Value (p2m);
671 }
672 else {
673 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
674 Pm = p1;
675//:n2 return Standard_False;
676 }
677 }
678 if ( Pm.Distance(p1) > prec || Pm.Distance(p2) > prec ) return Standard_False;
679
680 myStatus |= ShapeExtend::EncodeStatus ( V1.IsSame(V2) ? ShapeExtend_DONE1 : ShapeExtend_DONE2 );
681 return Standard_True;
682}
683
684//=======================================================================
685//function : CheckSeam
686//purpose :
687//=======================================================================
688
689 Standard_Boolean ShapeAnalysis_Wire::CheckSeam(const Standard_Integer num,
690 Handle(Geom2d_Curve)& C1,
691 Handle(Geom2d_Curve)& C2,
692 Standard_Real& cf,
693 Standard_Real& cl)
694{
695 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
696 if (!IsReady()) return Standard_False;
697 Standard_Integer n = num; if (n == 0) n = NbEdges();
698 TopoDS_Edge E = myWire->Edge (n);
699 if ( ! ShapeAnalysis_Edge().IsSeam ( E, myFace ) ) return Standard_False;
700 // Extract the Two PCurves of the Seam
701 TopoDS_Face ForwardFace = myFace; ForwardFace.Orientation (TopAbs_FORWARD);
702 //szv#4:S4163:12Mar99 SGI warns
703 TopoDS_Shape EF = E.Oriented(TopAbs_FORWARD);
704 TopoDS_Shape ER = E.Oriented(TopAbs_REVERSED);
705 C1 = BRep_Tool::CurveOnSurface(TopoDS::Edge(EF), ForwardFace, cf, cl);
706 C2 = BRep_Tool::CurveOnSurface(TopoDS::Edge(ER), ForwardFace, cf, cl);
707 if (C1.IsNull() || C2.IsNull()) return Standard_False;
708
709// SelectForward est destine a devenir un outil distinct
710
711 Standard_Integer theCurveIndice = ShapeAnalysis_Curve().SelectForwardSeam (C1,C2);
712 if ( theCurveIndice != 2 ) return Standard_False;
713
714 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
715 return Standard_True;
716}
717
718//=======================================================================
719//function : CheckSeam
720//purpose :
721//=======================================================================
722
723 Standard_Boolean ShapeAnalysis_Wire::CheckSeam(const Standard_Integer num)
724{
725 Handle(Geom2d_Curve) C1, C2;
726 Standard_Real cf, cl;
727 return CheckSeam (num, C1, C2, cf, cl);
728}
729
730//=======================================================================
731//function : CheckDegenerated
732//purpose :
733//=======================================================================
734
735Standard_Boolean ShapeAnalysis_Wire::CheckDegenerated (const Standard_Integer num,
736 gp_Pnt2d& p2d1, gp_Pnt2d& p2d2)
737{
738 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
739 if ( ! IsReady() || NbEdges() < 1 ) return Standard_False;
740
741 Standard_Integer n2 = (num > 0)? num : NbEdges();
742 Standard_Integer n1 = (n2 > 1)? n2-1 : NbEdges();
743 Standard_Integer n3 = (n2 < NbEdges())? n2+1 : 1;
744 TopoDS_Edge E1 = myWire->Edge ( n1 );
745 TopoDS_Edge E2 = myWire->Edge ( n2 );
746 TopoDS_Edge E3 = myWire->Edge ( n3 );
747
748 ShapeAnalysis_Edge sae;
749
750 // skip if edge is already marked as degenerated and has pcurve
751 if ( BRep_Tool::Degenerated ( E2 ) && sae.HasPCurve ( E2, Face() ) ) {
752 // skl 30.12.2004 for OCC7630 - we have to check pcurve
753 if( sae.HasPCurve(E1,Face()) && sae.HasPCurve(E3,Face()) ) {
754 Handle(Geom2d_Curve) c2d;
755 Standard_Real fp,lp;
756 sae.PCurve ( E2, myFace, c2d, fp, lp, Standard_True );
757 gp_Pnt2d p21 = c2d->Value(fp);
758 gp_Pnt2d p22 = c2d->Value(lp);
759 sae.PCurve ( E1, myFace, c2d, fp, lp, Standard_True );
760 gp_Pnt2d p12 = c2d->Value(lp);
761 sae.PCurve ( E3, myFace, c2d, fp, lp, Standard_True );
762 gp_Pnt2d p31 = c2d->Value(fp);
763 if( fabs(p12.Distance(p31)-p21.Distance(p22)) > 2*Precision::PConfusion() ) {
764 // pcurve is bad => we can remove this edge in ShapeFix
765 // if set needed status
766 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
767 }
768 }
769 return Standard_False;
770 }
771
772 //pdn allows to insert two sequences of degenerated edges (on separate bounds of surfaces)
773 if ( n1 != n2 && BRep_Tool::Degenerated ( E1 ) &&
774 ! sae.HasPCurve ( E1, Face() ) ) {
775 //:abv 13.05.02: OCC320 - fail (to remove edge) if two consequtive degenerated edges w/o pcurves
776 if ( BRep_Tool::Degenerated ( E2 ) )
777 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
778 return Standard_False;
779 }
780//:i8 if ( BRep_Tool::Degenerated ( E1 ) ||
781//:i8 BRep_Tool::Degenerated ( E2 ) ) return Standard_False; // deja OK
782
783 TopoDS_Vertex Vp = sae.FirstVertex (E1); //:i9
784 TopoDS_Vertex V0 = sae.LastVertex (E1);
785 TopoDS_Vertex V1 = sae.FirstVertex (E2);
786 TopoDS_Vertex V2 = sae.LastVertex (E2);
787 gp_Pnt pp = BRep_Tool::Pnt (Vp); //:i9
788 gp_Pnt p0 = BRep_Tool::Pnt (V0);
789 gp_Pnt p1 = BRep_Tool::Pnt (V1);
790 gp_Pnt p2 = BRep_Tool::Pnt (V2);
791 Standard_Real par1, par2;
792 Standard_Boolean lack = Standard_False;
793 Standard_Boolean dgnr = Standard_False;
794 //pdn 12.03.99 minimal value processing first
795 Standard_Real precFirst = Min(myPrecision,BRep_Tool::Tolerance(V1));
796 Standard_Real precFin = Max(myPrecision,BRep_Tool::Tolerance(V1));
797 Standard_Real precVtx = (myPrecision<BRep_Tool::Tolerance(V1) ? 2*precFin : precFin);
798 // forward : si Edge <num> FWD/REV. Si LACK, toujours True
799 Standard_Boolean forward = ( E2.Orientation() == TopAbs_FORWARD );
800 // FIX FEV 1998 : recompute singularity according precision
801
802 if (p1.Distance(p2) <= precFirst) { // edge DGNR
803 dgnr = mySurf->DegeneratedValues ( p1, precVtx, p2d1, p2d2, par1, par2, forward ); //smh#9
804 if ( dgnr ) { // abv 24 Feb 00: trj3_as1-ac-214.stp #6065: avoid making closed edge degenerated
805 Standard_Real a, b;
806 Handle(Geom_Curve) C3d = BRep_Tool::Curve ( E2, a, b );
807 if ( ! C3d.IsNull() ) {
808 gp_Pnt p = C3d->Value ( 0.5 * ( a + b ) );
809 if ( p.SquareDistance ( p1 ) > precVtx * precVtx ) dgnr = Standard_False;
810 }
811 }
812 }
813 if ( ! dgnr ) {
814 //:i9 abv 23 Sep 98: CTS20315-2 #63231: check that previous edge is not degenerated
815 if ( n1 != n2 && p1.Distance(pp) <= precFirst &&
816 mySurf->IsDegenerated ( pp, precFirst ) &&
817 ! BRep_Tool::Degenerated ( E1 ) ) return Standard_False;
818 //rln S4135 ShapeAnalysis_Surface new algorithms for singularities
819 //:45 by abv 16 Dec 97: BUC60035 2659: precision increased to vertex tolerance
820 //Standard_Real prec = Max ( myPrecision, BRep_Tool::Tolerance(V1) );
821 //:51 abv 22 Dec 97: recompute singularities if necessary
822 //rln S4135 if ( prec > myPrecision ) mySurf->ComputeSingularities ( 2 * prec ); //:51 //:74 abv 15 Jan 97: *2
823
824 if ( p0.Distance ( p1 ) <= precFin ) {// ou DGNR manquante ?
825 //rln S4135 singularity with precision = 2 * prec, but distance <= prec
826 //lack = mySurf->DegeneratedValues ( p1, prec, p2d1, p2d2, par1, par2, forward);
827 Standard_Real tmpPreci;
828 gp_Pnt tmpP3d;
829 Standard_Boolean tmpUIsoDeg;
830 //#77 rln S4135: using singularity which has minimum gap between singular point and input 3D point
831 Standard_Integer indMin = -1;
832 Standard_Real gapMin2 = RealLast();
833 for (Standard_Integer i = 1; i <= mySurf->NbSingularities (precVtx); i++) {
834 mySurf->Singularity (i, tmpPreci, tmpP3d, p2d1, p2d2, par1, par2, tmpUIsoDeg);
835 Standard_Real gap2 = p1.SquareDistance (tmpP3d);
836 if (gap2 <= precVtx * precVtx)
837 if (gapMin2 > gap2) {
838 gapMin2 = gap2;
839 indMin = i;
840 }
841 }
842 if (indMin >= 1) {
843 mySurf->Singularity (indMin, tmpPreci, tmpP3d, p2d1, p2d2, par1, par2, tmpUIsoDeg);
844 lack = Standard_True;
845 }
846 }
847
848 //rln S4135 if ( prec > myPrecision ) mySurf->ComputeSingularities ( myPrecision ); //:51
849 }
850
851 // voila, on a soit dgnr soit lack
852 if ( ! lack && ! dgnr ) {
853 //:abv 29.08.01: if singularity not detected but edge is marked
854 // as degenerated, report fail
855 if ( BRep_Tool::Degenerated ( E2 ) && ! sae.HasPCurve ( E2, Face() ) )
856 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
857 return Standard_False;
858 }
859
860 // OK, degenerated case detected; we will find its start and end in 2d
861
862 if ( lack ) forward = Standard_True;
863
864 //:24 by abv 28 Nov 97:
865 // make degenerative pcurve parametrized exactly from end of pcurve of the
866 // previous edge to the start of the next one
867 if ( lack || n1 != n2 ) { //:i8 abv 18 Sep 98: ProSTEP TR9 r0501-ug.stp #182180: single degedge is a wire at apex of a cone
868 Standard_Real a, b;
869 Handle(Geom2d_Curve) c2d;
870 if ( sae.PCurve ( E1, myFace, c2d, a, b, Standard_True ) ) {
871 p2d1 = c2d->Value ( b );
872 //#84 rln gp_Pnt2d p2d = c2d->Value ( b );
873 //#84 rln par1 = ( p2d.XY() - aP2d.XY() ) * theDir2d.XY();
874 }
875 else myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
876 //pdn pcurves (fixing regression in f0 in degenerated case)
877 if ( sae.PCurve ( ( dgnr ? E3 : E2 ), myFace, c2d, a, b, Standard_True ) ) {
878 p2d2 = c2d->Value ( a );
879 //#84 rln gp_Pnt2d p2d = c2d->Value ( a );
880 //#84 rln par2 = ( p2d.XY() - aP2d.XY() ) * theDir2d.XY();
881 }
882 else myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
883 }
884/*
885 if ( par2 < par1 ) {
886 par1 = -par1;
887 par2 = -par2;
888 theDir2d.Reverse();
889 }
890*/
891
892 //#84 rln 18.03.99 if pcurve is not degenerate anymore, the fix is postponned
893 //to ShapeFix_Wire::FixLacking
894 if ( ! mySurf->IsDegenerated ( p2d1, p2d2, precVtx, 10. ) ) { //:s1 abv 22 Apr 99: PRO7226 #489490 //smh#9
895 //:abv 24.05.02: OCC320 - fail (to remove edge) if two consequtive degenerated edges w/o pcurves
896 if ( BRep_Tool::Degenerated ( E2 ) )
897 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
898 return Standard_False;
899 }
900
901 //added by rln 18/12/97 CSR# CTS18544 entity 13638
902 //the situation when degenerated edge already exists but flag is not set
903 //(i.e. the parametric space is closed)
904 GeomAdaptor_Surface& Ads = mySurf->Adaptor3d()->ChangeSurface();
905 Standard_Real max = Max ( Ads.UResolution(myPrecision),
906 Ads.VResolution(myPrecision) );
907 if ( p2d1.Distance (p2d2) /*Abs (par1 - par2)*/ <= max + gp::Resolution() ) return Standard_False;
908
909 //#84 rln p2d1 = aP2d.XY() + par1 * theDir2d.XY();
910 //#84 rln p2d2 = aP2d.XY() + par2 * theDir2d.XY();
911 myStatus = ShapeExtend::EncodeStatus ( dgnr ? ShapeExtend_DONE2 : ShapeExtend_DONE1 );
912 return Standard_True;
913}
914
915//=======================================================================
916//function : CheckDegenerated
917//purpose :
918//=======================================================================
919
920Standard_Boolean ShapeAnalysis_Wire::CheckDegenerated (const Standard_Integer num)
921{
922 gp_Pnt2d p2d1, p2d2;
923 return CheckDegenerated ( num, p2d1, p2d2 );
924}
925
926//=======================================================================
927//function : CheckGap3d
928//purpose :
929//=======================================================================
930
931 Standard_Boolean ShapeAnalysis_Wire::CheckGap3d(const Standard_Integer num)
932{
933 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
934 //szv#4:S4163:12Mar99 optimized
935 if ( !IsLoaded() || NbEdges() < 1 ) return Standard_False; //szvsh was nbedges < 2
936 Standard_Integer n2 = ( num >0 ? num : NbEdges() );
937 Standard_Integer n1 = ( n2 >1 ? n2-1 : NbEdges() );
938 TopoDS_Edge E1 = myWire->Edge(n1);
939 TopoDS_Edge E2 = myWire->Edge(n2);
940 Standard_Real uf1,ul1,uf2,ul2;
941 Handle(Geom_Curve) C1,C2;
942 ShapeAnalysis_Edge SAE;
943 if (!SAE.Curve3d (E1,C1,uf1,ul1) || !SAE.Curve3d (E2,C2,uf2,ul2)) {
944 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
945 return Standard_False;
946 }
947 gp_Pnt p1 = C1->Value (ul1);
948 gp_Pnt p2 = C2->Value (uf2);
949 myMin3d = myMax3d = p1.Distance (p2);
950 if (myMin3d > myPrecision)
951 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
952 return LastCheckStatus (ShapeExtend_DONE);
953}
954
955//=======================================================================
956//function : CheckGap2d
957//purpose :
958//=======================================================================
959
960 Standard_Boolean ShapeAnalysis_Wire::CheckGap2d(const Standard_Integer num)
961{
962 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
963 //szv#4:S4163:12Mar99 optimized
964 if ( !IsReady() || NbEdges() < 1 ) return Standard_False; //szvsh was nbedges < 2
965 Standard_Integer n2 = ( num >0 ? num : NbEdges() );
966 Standard_Integer n1 = ( n2 >1 ? n2-1 : NbEdges() );
967 TopoDS_Edge E1 = myWire->Edge(n1);
968 TopoDS_Edge E2 = myWire->Edge(n2);
969 Standard_Real uf1,ul1,uf2,ul2;
970 Handle(Geom2d_Curve) C1,C2;
971 ShapeAnalysis_Edge SAE;
972 if (!SAE.PCurve (E1,myFace,C1,uf1,ul1) || !SAE.PCurve (E2,myFace,C2,uf2,ul2)) {
973 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
974 return Standard_False;
975 }
976 gp_Pnt2d p1 = C1->Value (ul1);
977 gp_Pnt2d p2 = C2->Value (uf2);
978 myMin2d = myMax2d = p1.Distance (p2);
979 GeomAdaptor_Surface& SA = mySurf->Adaptor3d()->ChangeSurface();
980 if (myMin2d > (Max (SA.UResolution (myPrecision), SA.VResolution (myPrecision)) + Precision::PConfusion()))
981 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
982 return LastCheckStatus (ShapeExtend_DONE);
983}
984
985//=======================================================================
986//function : CheckCurveGap
987//purpose :
988//=======================================================================
989
990 Standard_Boolean ShapeAnalysis_Wire::CheckCurveGap(const Standard_Integer num)
991{
992 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
993 if ( !IsLoaded() || NbEdges() < 1 ) return Standard_False;
994 Standard_Integer n = ( num >0 ? num : NbEdges() );
995 TopoDS_Edge E = myWire->Edge(n);
996 Standard_Real cuf,cul,pcuf,pcul;
997 Handle(Geom_Curve) c;
998 ShapeAnalysis_Edge SAE;
999 if (!SAE.Curve3d (E,c,cuf,cul,Standard_False)) {
1000 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1001 return Standard_False;
1002 }
1003 Handle(Geom2d_Curve) pc;
1004 if (!SAE.PCurve (E,myFace,pc,pcuf,pcul,Standard_False)) {
1005 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1006 return Standard_False;
1007 }
1008 Handle(Geom2dAdaptor_HCurve) AC = new Geom2dAdaptor_HCurve(pc,pcuf,pcul);
1009 Handle(GeomAdaptor_HSurface) AS = new GeomAdaptor_HSurface(mySurf->Surface());
1010 Adaptor3d_CurveOnSurface ACS(AC,AS);
1011 gp_Pnt cpnt, pcpnt;
1012 Standard_Integer nbp = 45;
1013 Standard_Real dist, maxdist=0.;
1014 for (Standard_Integer i=0; i<nbp; i++) {
1015 cpnt = c->Value(cuf + i*(cul-cuf)/(nbp-1));
1016 pcpnt = ACS.Value(pcuf + i*(pcul-pcuf)/(nbp-1));
1017 dist = cpnt.SquareDistance(pcpnt);
1018 if (maxdist<dist) maxdist = dist;
1019 }
1020 myMin3d = myMax3d = Sqrt(maxdist);
1021 if (myMin3d > myPrecision)
1022 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1023 return LastCheckStatus (ShapeExtend_DONE);
1024}
1025
1026//=======================================================================
1027//function : CheckSelfIntersectingEdge
1028//purpose :
1029//=======================================================================
1030
1031// auxiliary function
1032//:h0 abv 29 May 98: PRO10105 1949: like in BRepCheck, point is to be taken
1033// from 3d curve (but only if edge is SameParameter)
1034static gp_Pnt GetPointOnEdge ( const TopoDS_Edge &edge,
1035 const Handle(ShapeAnalysis_Surface) &surf,
1036 const Handle(Geom2d_Curve) &Crv2d,
1037 const Standard_Real param )
1038{
1039 if ( BRep_Tool::SameParameter ( edge ) ) {
1040 Standard_Real f,l;
1041 TopLoc_Location L;
1042 const Handle(Geom_Curve) ConS = BRep_Tool::Curve ( edge, L, f, l );
1043 if ( ! ConS.IsNull() )
1044 return ConS->Value ( param ).Transformed ( L.Transformation() );
1045 }
1046 return surf->Value ( Crv2d->Value ( param ) );
1047}
1048
1049//=======================================================================
1050//function : CheckSelfIntersectingEdge
1051//purpose :
1052//=======================================================================
1053
1054Standard_Boolean ShapeAnalysis_Wire::CheckSelfIntersectingEdge (const Standard_Integer num,
1055 IntRes2d_SequenceOfIntersectionPoint& points2d,
1056 TColgp_SequenceOfPnt& points3d)
1057{
1058 points2d.Clear();
1059 points3d.Clear();
1060 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1061 if ( ! IsReady() ) return Standard_False;
1062
1063 TopoDS_Edge edge = WireData()->Edge ( num >0 ? num : NbEdges() );
1064 ShapeAnalysis_Edge sae;
1065
1066 Standard_Real a, b;
1067 Handle(Geom2d_Curve) Crv;
1068 if ( ! sae.PCurve ( edge, myFace, Crv, a, b, Standard_False ) ) {
1069 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1070 return Standard_False;
1071 }
1072 if ( Abs ( a - b ) <= ::Precision::PConfusion() ) return Standard_False;
1073
1074 Standard_Real tolint = 1.0e-10;
1075 //szv#4:S4163:12Mar99 warning
1076 IntRes2d_Domain domain ( Crv->Value ( a ), a, tolint, Crv->Value ( b ), b, tolint );
1077 Geom2dAdaptor_Curve AC ( Crv );
1078 Geom2dInt_GInter Inter ( AC, domain, tolint, tolint );
1079
1080 if ( ! Inter.IsDone() ) return Standard_False;
1081
1082 TopoDS_Vertex V1 = sae.FirstVertex ( edge );
1083 TopoDS_Vertex V2 = sae.LastVertex ( edge );
1084 if ( V1.IsNull() || V2.IsNull() ) {
1085 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
1086 return Standard_False;
1087 }
1088 Standard_Real tol1 = BRep_Tool::Tolerance ( V1 );
1089 Standard_Real tol2 = BRep_Tool::Tolerance ( V2 );
1090
1091 gp_Pnt pnt1 = BRep_Tool::Pnt ( V1 );
1092 gp_Pnt pnt2 = BRep_Tool::Pnt ( V2 );
1093
1094 for ( Standard_Integer i=1; i <= Inter.NbPoints(); i++ ) {
1095 const IntRes2d_IntersectionPoint &IP = Inter.Point ( i );
1096 const IntRes2d_Transition &Tr1 = IP.TransitionOfFirst();
1097 const IntRes2d_Transition &Tr2 = IP.TransitionOfSecond();
1098 if ( Tr1.PositionOnCurve() != IntRes2d_Middle &&
1099 Tr2.PositionOnCurve() != IntRes2d_Middle ) continue;
1100 gp_Pnt pint = GetPointOnEdge ( edge, mySurf, Crv, IP.ParamOnFirst() );
1101 Standard_Real dist21 = pnt1.SquareDistance ( pint );
1102 Standard_Real dist22 = pnt2.SquareDistance ( pint );
1103 if ( dist21 > tol1 * tol1 && dist22 > tol2 * tol2 ) {
1104 points2d.Append ( IP );
1105 points3d.Append ( pint );
1106 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1107 }
1108 }
1109
1110 return LastCheckStatus ( ShapeExtend_DONE );
1111}
1112
1113//=======================================================================
1114//function : CheckSelfIntersectingEdge
1115//purpose :
1116//=======================================================================
1117
1118Standard_Boolean ShapeAnalysis_Wire::CheckSelfIntersectingEdge (const Standard_Integer num)
1119{
1120 IntRes2d_SequenceOfIntersectionPoint points2d;
1121 TColgp_SequenceOfPnt points3d;
1122 return CheckSelfIntersectingEdge ( num, points2d, points3d );
1123}
1124
1125//=======================================================================
1126//function : CheckIntersectingEdges
1127//purpose : Test if two consequent edges are intersecting
1128// It is made in accordance with the following check in BRepCheck:
1129// - in BRepCheck_Wire::Orientation(), test for self-intersection
1130//=======================================================================
1131
1132Standard_Boolean ShapeAnalysis_Wire::CheckIntersectingEdges (const Standard_Integer num,
1133 IntRes2d_SequenceOfIntersectionPoint& points2d,
1134 TColgp_SequenceOfPnt& points3d,
1135 TColStd_SequenceOfReal& errors)
1136{
1137 points2d.Clear();
1138 points3d.Clear();
1139 errors.Clear();
1140 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1141 if ( ! IsReady() || NbEdges() <2 ) return Standard_False;
1142
1143 //szv#4:S4163:12Mar99 optimized
1144 Standard_Integer n2 = (num > 0)? num : NbEdges();
1145 Standard_Integer n1 = (n2 > 1)? n2-1 : NbEdges();
1146 TopoDS_Edge edge1 = myWire->Edge ( n1 );
1147 TopoDS_Edge edge2 = myWire->Edge ( n2 );
1148
1149 ShapeAnalysis_Edge sae;
1150 TopoDS_Vertex V1 = sae.LastVertex ( edge1 );
1151 TopoDS_Vertex V2 = sae.FirstVertex ( edge2 );
1152 if ( V1.IsNull() || V2.IsNull() ) {
1153 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1154 return Standard_False;
1155 }
1156 if ( ! BRepTools::Compare ( V1, V2 ) ) {
1157 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
1158 return Standard_False;
1159 }
1160
1161 TopoDS_Vertex Vp = sae.FirstVertex ( edge1 );
1162 TopoDS_Vertex Vn = sae.LastVertex ( edge2 );
1163
1164 Standard_Real a1, b1, a2, b2;
1165 Handle(Geom2d_Curve) Crv1, Crv2;
1166 if ( ! sae.PCurve ( edge1, myFace, Crv1, a1, b1, Standard_False ) ) {
1167 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1168 return Standard_False;
1169 }
1170 if ( ! sae.PCurve ( edge2, myFace, Crv2, a2, b2, Standard_False ) ) {
1171 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1172 return Standard_False;
1173 }
1174 if ( Abs ( a1 - b1 ) <= ::Precision::PConfusion() ||
1175 Abs ( a2 - b2 ) <= ::Precision::PConfusion() ) return Standard_False; //:f7 abv 6 May 98: BUC50070 on #42276
1176
1177 Standard_Boolean isForward1 = ( edge1.Orientation() == TopAbs_FORWARD );
1178 Standard_Boolean isForward2 = ( edge2.Orientation() == TopAbs_FORWARD );
1179
1180 Standard_Real tol0 = Max ( BRep_Tool::Tolerance ( V1 ), BRep_Tool::Tolerance ( V2 ) );
1181 Standard_Real tol = tol0;
1182
1183 gp_Pnt pnt = BRep_Tool::Pnt ( V1 );
1184
1185// Standard_Boolean Status = Standard_False;
1186
1187 Standard_Real tolint = 1.0e-10;
1188
1189 //szv#4:S4163:12Mar99 warning
1190 IntRes2d_Domain d1 ( Crv1->Value ( a1 ), a1, tolint,
1191 Crv1->Value ( b1 ), b1, tolint );
1192 IntRes2d_Domain d2 ( Crv2->Value ( a2 ), a2, tolint,
1193 Crv2->Value ( b2 ), b2, tolint );
1194 Geom2dAdaptor_Curve C1 ( Crv1 ), C2 ( Crv2 );
1195
1196 //:64 abv 25 Dec 97: Attention!
1197 // Since Intersection algorithm is not symmetrical, for consistency with BRepCheck
1198 // edge with lower order number shoud be intersecting with edge with higher one
1199 // i.e., for intersection of last and first edges, they should go in reversed order
1200 // Example: entity #38285 from bug CSR #CTS17806
1201 // NOTE: Tr1 and Tr2 are not reordered because they are used in the same manner
1202 Geom2dInt_GInter Inter;
1203 if ( num ==1 ) Inter.Perform ( C2, d2, C1, d1, tolint, tolint );
1204 else Inter.Perform ( C1, d1, C2, d2, tolint, tolint );
1205 if ( ! Inter.IsDone() ) return Standard_False;
1206
1207 //:86 abv 22 Jan 98: fix self-intersection even if tolerance of vertex is enough
1208 // to annihilate it. This is done to prevent wrong effects if vertex tolerance
1209 // will be decreased (e.g., in FixLacking)
1210 Standard_Real tole = Max ( ( BRep_Tool::SameParameter ( edge1 ) ?
1211 BRep_Tool::Tolerance ( edge1 ) : tol0 ),
1212 ( BRep_Tool::SameParameter ( edge2 ) ?
1213 BRep_Tool::Tolerance ( edge2 ) : tol0 ) );
1214 Standard_Real tolt = Min ( tol, Max ( tole, myPrecision ) );
1215 //Standard_Real prevRange1 = RealLast(), prevRange2 = RealLast(); //SK
1216 Standard_Integer isLacking = -1; //:l0 abv: CATIA01 #1727: protect against adding lacking
1217 //#83 rln 19.03.99 sim2.igs, entity 4292
1218 //processing also segments as in BRepCheck
1219 Standard_Integer NbPoints = Inter.NbPoints(), NbSegments = Inter.NbSegments();
1220 for ( Standard_Integer i=1; i <= NbPoints + NbSegments; i++ ) {
1221 IntRes2d_IntersectionPoint IP;
1222 IntRes2d_Transition Tr1, Tr2;
1223 if (i <= NbPoints)
1224 IP = Inter.Point ( i );
1225 else {
1226 const IntRes2d_IntersectionSegment &Seg = Inter.Segment ( i - NbPoints );
1227 if (!Seg.HasFirstPoint() || !Seg.HasLastPoint()) continue;
1228 IP = Seg.FirstPoint();
1229 Tr1 = IP.TransitionOfFirst();
1230 Tr2 = IP.TransitionOfSecond();
1231 if (Tr1.PositionOnCurve() == IntRes2d_Middle || Tr2.PositionOnCurve() == IntRes2d_Middle)
1232 IP = Seg.LastPoint();
1233 }
1234 Tr1 = IP.TransitionOfFirst();
1235 Tr2 = IP.TransitionOfSecond();
1236
1237 if ( Tr1.PositionOnCurve() != IntRes2d_Middle &&
1238 Tr2.PositionOnCurve() != IntRes2d_Middle ) continue;
1239 Standard_Real param1, param2;
1240 param1 = ( num ==1 ? IP.ParamOnSecond() : IP.ParamOnFirst() );
1241 param2 = ( num ==1 ? IP.ParamOnFirst() : IP.ParamOnSecond() );
1242
1243 //:r6 abv 8 Apr 99: r_47-sd.stp #173850: protect against working out of curve range
1244 if ( a1-param1 > ::Precision::PConfusion() ||
1245 param1-b1 > ::Precision::PConfusion() ||
1246 a2-param2 > ::Precision::PConfusion() ||
1247 param2-b2 > ::Precision::PConfusion() ) continue;
1248
1249 //:82 abv 21 Jan 98: point of intersection on Crv1 and Crv2 is different
1250 gp_Pnt pi1 = GetPointOnEdge ( edge1, mySurf, Crv1, param1 ); //:h0: thesurf.Value ( Crv1->Value ( param1 ) );
1251 gp_Pnt pi2 = GetPointOnEdge ( edge2, mySurf, Crv2, param2 ); //:h0: thesurf.Value ( Crv2->Value ( param2 ) );
1252 gp_Pnt pint = 0.5 * ( pi1.XYZ() + pi2.XYZ() );
1253 Standard_Real di1 = pi1.SquareDistance ( pnt );
1254 Standard_Real di2 = pi2.SquareDistance ( pnt );
1255 Standard_Real dist2 = Max ( di1, di2 );
1256
1257 //rln 03/02/98: CSR#BUC50004 entity 56 (to avoid later inserting lacking edge)
1258 if ( isLacking <0 ) { //:l0
1259 gp_Pnt2d end1 = Crv1->Value ( isForward1 ? b1 : a1 );
1260 gp_Pnt2d end2 = Crv2->Value ( isForward2 ? a2 : b2 );
1261//:l0 Standard_Real distab2 = mySurf->Value ( end1 ).SquareDistance ( mySurf->Value ( end2 ) );
1262 //:l0: test like in BRepCheck
1263 GeomAdaptor_Surface& Ads = mySurf->Adaptor3d()->ChangeSurface();
1264 Standard_Real tol2d = 2 * Max ( Ads.UResolution(tol), Ads.VResolution(tol) );
1265 isLacking = ( end1.SquareDistance(end2) >= tol2d * tol2d );
1266 }
1267
1268 if ( ( dist2 > tolt * tolt || //:86: tol -> tolt
1269 isLacking ) && //:l0
1270//:l0 distab2 > BRep_Tool::Tolerance ( edge1 ) + BRep_Tool::Tolerance ( edge2 ) ) && //rln
1271 ( ! BRepTools::Compare ( Vp, Vn ) || //:63
1272 dist2 < pint.SquareDistance ( BRep_Tool::Pnt ( Vp ) ) ) ) { //:63
1273 points2d.Append ( IP );
1274 points3d.Append ( pint );
1275 errors.Append ( 0.5 * pi1.Distance ( pi2 ) );
1276 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1277 }
1278 }
1279
1280 return LastCheckStatus ( ShapeExtend_DONE );
1281}
1282
1283//=======================================================================
1284//function : CheckIntersectingEdges
1285//purpose :
1286//=======================================================================
1287
1288Standard_Boolean ShapeAnalysis_Wire::CheckIntersectingEdges (const Standard_Integer num)
1289{
1290 IntRes2d_SequenceOfIntersectionPoint points2d;
1291 TColgp_SequenceOfPnt points3d;
1292 TColStd_SequenceOfReal errors;
1293 return CheckIntersectingEdges ( num, points2d, points3d, errors );
1294}
1295
1296//=======================================================================
1297//function : CheckIntersectingEdges
1298//purpose :
1299//=======================================================================
1300
1301Standard_Boolean ShapeAnalysis_Wire::CheckIntersectingEdges(const Standard_Integer num1,
1302 const Standard_Integer num2,
1303 IntRes2d_SequenceOfIntersectionPoint& points2d,
1304 TColgp_SequenceOfPnt& points3d,
1305 TColStd_SequenceOfReal& errors)
1306{
1307 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1308 if ( ! IsReady() ) return Standard_False;
1309 Handle(ShapeExtend_WireData) sbwd = WireData();
1310 Standard_Integer n2 = ( num2 >0 ? num2 : sbwd->NbEdges() );
1311 Standard_Integer n1 = ( num1 >0 ? num1 : sbwd->NbEdges() );
1312
1313 TopoDS_Edge edge1 = sbwd->Edge ( n1 );
1314 TopoDS_Edge edge2 = sbwd->Edge ( n2 );
1315
1316 ShapeAnalysis_Edge sae;
1317 Standard_Real a1, b1, a2, b2;
1318 Handle(Geom2d_Curve) Crv1, Crv2;
1319 if(!sae.PCurve ( edge1, myFace, Crv1, a1, b1, Standard_False )){
1320 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1321 return Standard_False;
1322 }
1323
1324 if(!sae.PCurve ( edge2, myFace, Crv2, a2, b2, Standard_False )){
1325 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1326 return Standard_False;
1327 }
1328
1329 if ( Abs ( a1 - b1 ) <= ::Precision::PConfusion() ||
1330 Abs ( a2 - b2 ) <= ::Precision::PConfusion() ) return Standard_False;
1331
1332 points2d.Clear();
1333 points3d.Clear();
1334 errors.Clear();
1335 TColgp_Array1OfPnt vertexPoints(1,4);
1336 TColStd_Array1OfReal vertexTolers(1,4);
1337 vertexPoints(1) = BRep_Tool::Pnt(sae.FirstVertex(edge1));
1338 vertexTolers(1) = BRep_Tool::Tolerance(sae.FirstVertex(edge1));
1339 vertexPoints(2) = BRep_Tool::Pnt(sae.LastVertex(edge1));
1340 vertexTolers(2) = BRep_Tool::Tolerance(sae.LastVertex(edge1));
1341 vertexPoints(3) = BRep_Tool::Pnt(sae.FirstVertex(edge2));
1342 vertexTolers(3) = BRep_Tool::Tolerance(sae.FirstVertex(edge2));
1343 vertexPoints(4) = BRep_Tool::Pnt(sae.LastVertex(edge2));
1344 vertexTolers(4) = BRep_Tool::Tolerance(sae.LastVertex(edge2));
1345
1346 Standard_Real tolint = 1.0e-10;
1347
1348 IntRes2d_Domain d1 ( Crv1->Value ( a1 ), a1, tolint,
1349 Crv1->Value ( b1 ), b1, tolint );
1350 IntRes2d_Domain d2 ( Crv2->Value ( a2 ), a2, tolint,
1351 Crv2->Value ( b2 ), b2, tolint );
1352 Geom2dAdaptor_Curve C1 ( Crv1 ), C2 ( Crv2 );
1353
1354 Geom2dInt_GInter Inter;
1355 Inter.Perform ( C1, d1, C2, d2, tolint, tolint );
1356 if ( ! Inter.IsDone() ) return Standard_False;
1357
1358 //#83 rln 19.03.99 sim2.igs, entity 4292
1359 //processing also segments as in BRepCheck
1360 Standard_Integer NbPoints = Inter.NbPoints(), NbSegments = Inter.NbSegments();
1361 for ( Standard_Integer i=1; i <= NbPoints + NbSegments; i++ ) {
1362 IntRes2d_IntersectionPoint IP;
1363 IntRes2d_Transition Tr1, Tr2;
1364 if (i <= NbPoints)
1365 IP = Inter.Point ( i );
1366 else {
1367 const IntRes2d_IntersectionSegment &Seg = Inter.Segment ( i - NbPoints );
1368 if (!Seg.HasFirstPoint() || !Seg.HasLastPoint()) continue;
1369 IP = Seg.FirstPoint();
1370 Tr1 = IP.TransitionOfFirst();
1371 Tr2 = IP.TransitionOfSecond();
1372 if (Tr1.PositionOnCurve() == IntRes2d_Middle || Tr2.PositionOnCurve() == IntRes2d_Middle)
1373 IP = Seg.LastPoint();
1374 }
1375 Tr1 = IP.TransitionOfFirst();
1376 Tr2 = IP.TransitionOfSecond();
1377 if ( Tr1.PositionOnCurve() != IntRes2d_Middle &&
1378 Tr2.PositionOnCurve() != IntRes2d_Middle ) continue;
1379 Standard_Real param1 = IP.ParamOnFirst();
1380 Standard_Real param2 = IP.ParamOnSecond();
1381 gp_Pnt pi1 = GetPointOnEdge ( edge1, mySurf, Crv1, param1 ); //:h0: thesurf.Value ( Crv1->Value ( param1 ) );
1382 gp_Pnt pi2 = GetPointOnEdge ( edge2, mySurf, Crv2, param2 );
1383 Standard_Boolean OK = Standard_False;
1384 for(Standard_Integer j=1; (j<=4)&&!OK; j++) {
1385 Standard_Real di1 = pi1.SquareDistance (vertexPoints(j));
1386 Standard_Real di2 = pi2.SquareDistance (vertexPoints(j));
1387 Standard_Real dist2 = Max ( di1, di2 );
1388 if(dist2 < vertexTolers(j) * vertexTolers(j))
1389 OK = Standard_True;
1390 }
1391 if(!OK) {
1392 gp_Pnt pint = 0.5 * ( pi1.XYZ() + pi2.XYZ() );
1393 points2d.Append ( IP );
1394 points3d.Append ( pint );
1395 errors.Append ( 0.5 * pi1.Distance ( pi2 ) );
1396 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1397 }
1398 }
1399 return LastCheckStatus ( ShapeExtend_DONE );
1400}
1401
1402//=======================================================================
1403//function : CheckIntersectingEdges
1404//purpose :
1405//=======================================================================
1406
1407Standard_Boolean ShapeAnalysis_Wire::CheckIntersectingEdges (const Standard_Integer num1,
1408 const Standard_Integer num2)
1409{
1410 IntRes2d_SequenceOfIntersectionPoint points2d;
1411 TColgp_SequenceOfPnt points3d;
1412 TColStd_SequenceOfReal errors;
1413 return CheckIntersectingEdges(num1, num2, points2d, points3d, errors);
1414}
1415
1416//=======================================================================
1417//function : CheckLacking
1418//purpose : Test if two edges are disconnected in 2d according to the
1419// Adaptor_Surface::Resolution
1420//=======================================================================
1421
1422Standard_Boolean ShapeAnalysis_Wire::CheckLacking (const Standard_Integer num,
1423 const Standard_Real Tolerance,
1424 gp_Pnt2d &p2d1, gp_Pnt2d &p2d2)
1425{
1426 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1427 if ( ! IsReady() ) return Standard_False;
1428
1429 //szv#4:S4163:12Mar99 optimized
1430 Standard_Integer n2 = (num > 0)? num : NbEdges();
1431 Standard_Integer n1 = (n2 > 1)? n2-1 : NbEdges();
1432 TopoDS_Edge E1 = myWire->Edge ( n1 );
1433 TopoDS_Edge E2 = myWire->Edge ( n2 );
1434
1435 ShapeAnalysis_Edge sae;
1436 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
1437 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
1438 // CKY 4 MAR 1998 : protection against null vertex
1439 if ( V1.IsNull() || V2.IsNull() ) {
1440 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1441 return Standard_False;
1442 }
1443 if ( ! BRepTools::Compare ( V1, V2 ) ) {
1444 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
1445 return Standard_False;
1446 }
1447
1448 Standard_Real a, b;
1449 gp_Vec2d v1, v2, v12;
1450 Handle(Geom2d_Curve) c2d;
1451 if ( ! sae.PCurve ( E1, myFace, c2d, a, b, Standard_True ) ) {
1452 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1453 return Standard_False;
1454 }
1455 c2d->D1 ( b, p2d1, v1 );
1456 if ( E1.Orientation() == TopAbs_REVERSED ) v1.Reverse();
1457 if ( ! sae.PCurve ( E2, myFace, c2d, a, b, Standard_True ) ) {
1458 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1459 return Standard_False;
1460 }
1461 c2d->D1 ( a, p2d2, v2 );
1462 if ( E2.Orientation() == TopAbs_REVERSED ) v2.Reverse();
1463 v12 = p2d2.XY() - p2d1.XY();
1464 myMax2d = v12.SquareMagnitude();
1465
1466 // test like in BRepCheck
1467 Standard_Real tol = Max ( BRep_Tool::Tolerance ( V1 ), BRep_Tool::Tolerance ( V2 ) );
1468 tol = ( Tolerance > gp::Resolution() && Tolerance < tol ? Tolerance : tol );
1469 GeomAdaptor_Surface& Ads = mySurf->Adaptor3d()->ChangeSurface();
1470 Standard_Real tol2d = 2 * Max ( Ads.UResolution(tol), Ads.VResolution(tol) );
1471 if ( // tol2d < gp::Resolution() || //#2 smh 26.03.99 S4163 Zero divide
1472 myMax2d < tol2d * tol2d ) return Standard_False;
1473
1474 myMax2d = Sqrt ( myMax2d );
1475 myMax3d = tol * myMax2d / Max ( tol2d, gp::Resolution() );
1476 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
1477
1478 if ( myMax2d < Precision::PConfusion() || //:abv 03.06.02 CTS21866.stp
1479 ( v1.SquareMagnitude() > gp::Resolution() && Abs ( v12.Angle ( v1 ) ) > 0.9 * PI ) ||
1480 ( v2.SquareMagnitude() > gp::Resolution() && Abs ( v12.Angle ( v2 ) ) > 0.9 * PI ) )
1481 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
1482 return Standard_True;
1483}
1484
1485//=======================================================================
1486//function : CheckLacking
1487//purpose :
1488//
1489//=======================================================================
1490
1491Standard_Boolean ShapeAnalysis_Wire::CheckLacking (const Standard_Integer num,
1492 const Standard_Real Tolerance)
1493{
1494 gp_Pnt2d p1, p2;
1495 return CheckLacking (num, Tolerance, p1, p2);
1496}
1497
1498//=======================================================================
1499//function : CheckOuterBound
1500//purpose :
1501//=======================================================================
1502
1503 Standard_Boolean ShapeAnalysis_Wire::CheckOuterBound(const Standard_Boolean APIMake)
1504{
1505 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1506 if ( ! IsReady() ) return Standard_False;
1507
1508 TopoDS_Wire wire;
1509 if (APIMake) wire = myWire->WireAPIMake();
1510 else wire = myWire->Wire();
1511
1512 TopoDS_Shape sh = myFace.EmptyCopied(); //szv#4:S4163:12Mar99 SGI warns
1513 TopoDS_Face face = TopoDS::Face(sh);
1514 BRep_Builder B;
1515 B.Add (face, wire);
1516 if (ShapeAnalysis::IsOuterBound (face)) return Standard_False;
1517 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1518 return Standard_True;
1519}
1520
1521//=======================================================================
1522//function : CheckNotchedEdges
1523//purpose :
1524//=======================================================================
1525
1526static Standard_Real ProjectInside(const Adaptor3d_CurveOnSurface AD,
1527 const gp_Pnt pnt,
1528 const Standard_Real preci,
1529 gp_Pnt& proj,
1530 Standard_Real& param,
1531 const Standard_Boolean adjustToEnds = Standard_True)
1532{
1533 ShapeAnalysis_Curve sac;
1534 Standard_Real dist = sac.Project(AD,pnt,preci,proj,param,adjustToEnds);
1535 Standard_Real uFirst = AD.FirstParameter();
1536 Standard_Real uLast = AD.LastParameter();
1537 if(param<uFirst) {
1538 param = uFirst;
1539 proj = AD.Value(uFirst);
1540 return proj.Distance(pnt);
1541 }
1542
1543 if(param>uLast) {
1544 param = uLast;
1545 proj = AD.Value(uLast);
1546 return proj.Distance(pnt);
1547 }
1548 return dist;
1549}
1550
1551Standard_Boolean ShapeAnalysis_Wire::CheckNotchedEdges(const Standard_Integer num,
1552 Standard_Integer& shortNum,
1553 Standard_Real& param,
1554 const Standard_Real Tolerance)
1555{
1556 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1557 if ( ! IsReady() ) return Standard_False;
1558
1559 Standard_Integer n2 = (num > 0)? num : NbEdges();
1560 Standard_Integer n1 = (n2 > 1)? n2-1 : NbEdges();
1561 TopoDS_Edge E1 = myWire->Edge ( n1 );
1562 TopoDS_Edge E2 = myWire->Edge ( n2 );
1563
1564 if(BRep_Tool::Degenerated(E1)||BRep_Tool::Degenerated(E2))
1565 return Standard_False;
1566
1567 ShapeAnalysis_Edge sae;
1568 TopoDS_Vertex V1 = sae.LastVertex ( E1 );
1569 TopoDS_Vertex V2 = sae.FirstVertex ( E2 );
1570
1571 if ( V1.IsNull() || V2.IsNull() ) {
1572 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1573 return Standard_False;
1574 }
1575 if ( ! BRepTools::Compare ( V1, V2 ) ) {
1576 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
1577 return Standard_False;
1578 }
1579
1580 Standard_Real a1, b1, a2, b2;
1581 gp_Pnt2d p2d1, p2d2;
1582 gp_Vec2d v1, v2;
1583 Handle(Geom2d_Curve) c2d1, c2d2;
1584 if ( ! sae.PCurve ( E1, myFace, c2d1, a1, b1, Standard_False ) ) {
1585 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1586 return Standard_False;
1587 }
1588
1589 if(E1.Orientation()==TopAbs_REVERSED)
1590 c2d1->D1 ( a1, p2d1, v1 );
1591 else {
1592 c2d1->D1 ( b1, p2d1, v1 );
1593 v1.Reverse();
1594 }
1595
1596 if ( ! sae.PCurve ( E2, myFace, c2d2, a2, b2, Standard_False ) ) {
1597 myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_FAIL3);
1598 return Standard_False;
1599 }
1600 if(E2.Orientation()==TopAbs_REVERSED) {
1601 c2d2->D1 ( b2, p2d2, v2 );
1602 v2.Reverse();
1603 }
1604 else
1605 c2d2->D1 ( a2, p2d2, v2 );
1606
1607 if ( v2.Magnitude() < gp::Resolution() || v1.Magnitude() < gp::Resolution())
1608 return Standard_False;
1609
1610 if ( Abs ( v2.Angle ( v1 ) ) > 0.1 || p2d1.Distance(p2d2) > Tolerance)
1611 return Standard_False;
1612
1613 Handle(Geom2dAdaptor_HCurve) AC2d1 = new Geom2dAdaptor_HCurve(c2d1,a1,b1);
1614 Handle(GeomAdaptor_HSurface) AdS1 = new GeomAdaptor_HSurface(new Geom_Plane(gp_Pln()));
1615 Adaptor3d_CurveOnSurface Ad1(AC2d1,AdS1);
1616
1617 Handle(Geom2dAdaptor_HCurve) AC2d2 = new Geom2dAdaptor_HCurve(c2d2,a2,b2);
1618 Handle(GeomAdaptor_HSurface) AdS2 = new GeomAdaptor_HSurface(new Geom_Plane(gp_Pln()));
1619 Adaptor3d_CurveOnSurface Ad2(AC2d2,AdS2);
1620
1621 Adaptor3d_CurveOnSurface longAD, shortAD;
1622 Standard_Real lenP, firstP;
1623
1624 ShapeAnalysis_Curve sac;
1625
1626 gp_Pnt Proj1, Proj2;
1627 Standard_Real param1, param2;
1628 p2d2=c2d2->Value(E2.Orientation()==TopAbs_FORWARD ? b2 : a2);
1629 p2d1=c2d1->Value(E1.Orientation()==TopAbs_FORWARD ? a1 : b1);
1630 Standard_Real dist1 = ProjectInside(Ad1,gp_Pnt(p2d2.X(),p2d2.Y(),0),Tolerance,Proj1,param1,Standard_False);
1631 Standard_Real dist2 = ProjectInside(Ad2,gp_Pnt(p2d1.X(),p2d1.Y(),0),Tolerance,Proj2,param2,Standard_False);
1632
1633 if ( dist1 > Tolerance && dist2 > Tolerance)
1634 return Standard_False;
1635
1636 if (dist1 < dist2 ) {
1637 shortAD = Ad2;
1638 longAD = Ad1;
1639 lenP = b2 - a2;
1640 firstP = a2;
1641 shortNum=n2;
1642 param=param1;
1643
1644 }
1645 else {
1646 shortAD = Ad1;
1647 longAD = Ad2;
1648 lenP = b1 - a1;
1649 firstP = a1;
1650 shortNum=n1;
1651 param=param2;
1652 }
1653
1654 Standard_Real step = lenP/23;
1655 for (Standard_Integer i = 1; i < 23; i++,firstP+=step) {
1656 Standard_Real d1 = sac.Project(longAD,shortAD.Value(firstP),Tolerance,Proj1,param1);
1657 if (d1 > Tolerance) {
1658 return Standard_False;
1659 }
1660 }
1661
1662 return Standard_True;
1663}
1664
1665//=======================================================================
1666//function : CheckSmallArea
1667//purpose :
1668//=======================================================================
1669
1670Standard_Boolean ShapeAnalysis_Wire::CheckSmallArea(const Standard_Real prec2d)
1671{
1672 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1673 Standard_Integer NbEdges = myWire->NbEdges();
1674 if ( !IsReady() || NbEdges <1 ) return Standard_False;
1675 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
1676
1677 Standard_Integer NbControl=23;
1678 Standard_Real area=0;
1679 gp_XY prev, cont;
1680 for (Standard_Integer nbe = 1; nbe <= NbEdges; nbe++) {
1681 Standard_Real First, Last;
1682 Handle(Geom2d_Curve) c2d;
1683 ShapeAnalysis_Edge sae;
1684 if (!sae.PCurve(myWire->Edge(nbe),myFace,c2d,First,Last)) {
1685 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
1686 return Standard_False;
1687 }
1688
1689 Standard_Integer ibeg = 0;
1690 if( nbe == 1 ) {
1691 gp_Pnt2d pntIni = c2d->Value(First);
1692 prev = pntIni.XY();
1693 cont = prev;
1694 ibeg = 1;
1695 }
1696 for ( Standard_Integer i = ibeg; i < NbControl; i++) {
1697 Standard_Real prm = ((NbControl-1-i)*First + i*Last)/(NbControl-1);
1698 gp_Pnt2d pntCurr = c2d->Value(prm);
1699 gp_XY curr = pntCurr.XY();
1700 area += curr ^ prev;
1701 prev = curr;
1702 }
1703 }
1704 area += cont ^ prev;
1705 if ( Abs(area) < 2*prec2d*prec2d ) {
1706 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1707 return Standard_True;
1708 }
1709 return Standard_False;
1710}
1711
1712//=======================================================================
1713//function : CheckShapeConnect
1714//purpose :
1715//=======================================================================
1716
1717 Standard_Boolean ShapeAnalysis_Wire::CheckShapeConnect(const TopoDS_Shape& shape,const Standard_Real prec)
1718{
1719 Standard_Real tailhead, tailtail, headhead, headtail;
1720 return CheckShapeConnect (tailhead, tailtail, headtail, headhead, shape, prec);
1721}
1722
1723//=======================================================================
1724//function : CheckShapeConnect
1725//purpose :
1726//=======================================================================
1727
1728 Standard_Boolean ShapeAnalysis_Wire::CheckShapeConnect(Standard_Real& tailhead, Standard_Real& tailtail,
1729 Standard_Real& headtail, Standard_Real& headhead,
1730 const TopoDS_Shape& shape, const Standard_Real prec)
1731{
1732 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL1);
1733 if (!IsLoaded () || shape.IsNull()) return Standard_False;
1734 TopoDS_Vertex V1,V2;
1735 TopoDS_Edge E; TopoDS_Wire W;
1736 ShapeAnalysis_Edge SAE;
1737 if (shape.ShapeType() == TopAbs_EDGE) {
1738 E = TopoDS::Edge (shape);
1739 V1 = SAE.FirstVertex (E); V2 = SAE.LastVertex (E);
1740 } else if (shape.ShapeType() == TopAbs_WIRE) {
1741 W = TopoDS::Wire (shape);
1742 ShapeAnalysis::FindBounds (W,V1,V2);
1743 }
1744 else return Standard_False;
1745 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1746// on va comparer les points avec ceux de thevfirst et thevlast
1747 gp_Pnt p1 = BRep_Tool::Pnt(V1);
1748 gp_Pnt p2 = BRep_Tool::Pnt(V2);
1749
1750 TopoDS_Vertex vfirst = SAE.FirstVertex (myWire->Edge (1)),
1751 vlast = SAE.LastVertex (myWire->Edge (NbEdges()));
1752 gp_Pnt pf = BRep_Tool::Pnt(vfirst);
1753 gp_Pnt pl = BRep_Tool::Pnt(vlast);
1754
1755 tailhead = p1.Distance(pl);
1756 tailtail = p2.Distance(pl);
1757 headhead = p1.Distance(pf);
1758 headtail = p2.Distance(pf);
1759 Standard_Real dm1 = tailhead, dm2 = headtail;
1760 Standard_Integer res1 = 0, res2 = 0;
1761
1762 if (tailhead > tailtail) {res1 = 1; dm1 = tailtail;}
1763 if (headtail > headhead) {res2 = 1; dm2 = headhead;}
1764 Standard_Integer result = res1;
1765 myMin3d = Min (dm1, dm2);
1766 myMax3d = Max (dm1, dm2);
1767 if (dm1 > dm2) {dm1 = dm2; result = res2 + 2;}
1768 switch (result) {
1769 case 1: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE2); break;
1770 case 2: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE3); break;
1771 case 3: myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE4); break;
1772 }
1773 if (!res1) myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE5);
1774 if (!res2) myStatus |= ShapeExtend::EncodeStatus (ShapeExtend_DONE6);
1775
1776 if (myMin3d > Max (myPrecision, prec))
1777 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_FAIL2);
1778 return LastCheckStatus (ShapeExtend_DONE);
1779}
1780
1781//=======================================================================
1782//function : CheckLoop
1783//purpose :
1784//=======================================================================
1785Standard_Boolean isMultiVertex(const TopTools_ListOfShape& alshape,
1786 const TopTools_MapOfShape& aMapSmallEdges,
1787 const TopTools_MapOfShape& aMapSeemEdges)
1788{
1789 TopTools_ListIteratorOfListOfShape lIt1(alshape);
1790 Standard_Integer nbNotAccount =0;
1791
1792 for( ; lIt1.More() ; lIt1.Next())
1793 {
1794 if(aMapSmallEdges.Contains(lIt1.Value()))
1795 nbNotAccount++;
1796 else if(aMapSeemEdges.Contains(lIt1.Value()))
1797 nbNotAccount++;
1798 }
1799 return ((alshape.Extent() -nbNotAccount) >2);
1800}
1801 Standard_Boolean ShapeAnalysis_Wire::CheckLoop(TopTools_IndexedMapOfShape& aMapLoopVertices,
1802 TopTools_DataMapOfShapeListOfShape& aMapVertexEdges,
1803 TopTools_MapOfShape& aMapSmallEdges,
1804 TopTools_MapOfShape& aMapSeemEdges)
1805{
1806 myStatus = ShapeExtend::EncodeStatus(ShapeExtend_OK);
1807 if (!IsLoaded() || NbEdges() < 2) return Standard_False;
1808 Standard_Real aSavPreci = Precision();
1809 SetPrecision(Precision::Infinite());
1810 Standard_Integer i =1;
1811
1812 for( ; i <= myWire->NbEdges(); i++) {
1813 TopoDS_Edge aedge = myWire->Edge(i);
1814 TopoDS_Vertex aV1,aV2;
1815 TopExp::Vertices(aedge,aV1,aV2);
1816 Standard_Boolean isSame = aV1.IsSame(aV2);
1817 if(myWire->IsSeam(i))
1818 aMapSeemEdges.Add(aedge); ///continue;
1819 else if(BRep_Tool::Degenerated(aedge))
1820 aMapSmallEdges.Add(aedge);
1821 else if(isSame && CheckSmall(i,BRep_Tool::Tolerance(aV1)))
1822 aMapSmallEdges.Add(aedge);
1823
1824 if(!aMapVertexEdges.IsBound(aV1)) {
1825 TopTools_ListOfShape alshape;
1826 aMapVertexEdges.Bind(aV1,alshape);
1827 }
1828 if(!aMapVertexEdges.IsBound(aV2)) {
1829 TopTools_ListOfShape alshape;
1830 aMapVertexEdges.Bind(aV2,alshape);
1831 }
1832 if(isSame)
1833 {
1834 TopTools_ListOfShape& alshape = aMapVertexEdges.ChangeFind(aV1);
1835 alshape.Append(aedge);
1836 alshape.Append(aedge);
1837 if(alshape.Extent() >2 && isMultiVertex( alshape,aMapSmallEdges,aMapSeemEdges))
1838 aMapLoopVertices.Add(aV1);
1839 }
1840 else {
1841 TopTools_ListOfShape& alshape = aMapVertexEdges.ChangeFind(aV1);
1842 alshape.Append(aedge);
1843 if(alshape.Extent() >2 && isMultiVertex( alshape,aMapSmallEdges,aMapSeemEdges))
1844 aMapLoopVertices.Add(aV1);
1845 TopTools_ListOfShape& alshape2 = aMapVertexEdges.ChangeFind(aV2);
1846 alshape2.Append(aedge);
1847 if(alshape2.Extent() >2 && isMultiVertex( alshape2,aMapSmallEdges,aMapSeemEdges))
1848 aMapLoopVertices.Add(aV2);
1849 }
1850 }
1851 SetPrecision(aSavPreci);
1852 if(aMapLoopVertices.Extent())
1853 {
1854 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
1855 myStatusLoop |= myStatus;
1856 return Standard_True;
1857 }
1858 return Standard_False;
1859}