1 // Created on: 1993-02-02
2 // Created by: Laurent BUCHARD
3 // Copyright (c) 1993-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 // modified by Edward AGAPOV (eap) Tue Jan 22 12:29:55 2002
18 // modified by Oleg FEDYAED (ofv) Fri Nov 29 16:08:02 2002
20 #include <IntPatch_PrmPrmIntersection.ixx>
22 #include <IntPatch_InterferencePolyhedron.hxx>
23 #include <IntWalk_PWalking.hxx>
24 #include <IntPatch_WLine.hxx>
25 #include <IntPatch_RstInt.hxx>
27 #include <IntPatch_Line.hxx>
29 #include <IntSurf_PntOn2S.hxx>
30 #include <IntSurf_LineOn2S.hxx>
31 #include <TColStd_Array1OfReal.hxx>
32 #include <Intf_PIType.hxx>
33 #include <Intf_SectionLine.hxx>
34 #include <Intf_TangentZone.hxx>
35 #include <Intf_SectionPoint.hxx>
38 #include <IntPolyh_Intersection.hxx>
40 #include <TColStd_SequenceOfInteger.hxx>
41 #include <IntSurf_ListIteratorOfListOfPntOn2S.hxx>
42 #include <TColStd_HArray1OfReal.hxx>
44 static void SectionPointToParameters(const Intf_SectionPoint& Sp,
45 const IntPatch_Polyhedron& Surf1,
46 const IntPatch_Polyhedron& Surf2,
54 void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
55 const Handle(Adaptor3d_HSurface)& Surf2,
56 IntPatch_SequenceOfLine& aSLin);
59 IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
60 const IntSurf_PntOn2S& oldPnt,
61 const Standard_Real* Periods);
63 static Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S &thePOn2S,
64 const Handle(IntPatch_WLine) &theWLine,
65 const Standard_Real Deflection);
67 static void AddWLine(IntPatch_SequenceOfLine &theLines,
68 const Handle(IntPatch_WLine) &theWLine,
69 const Standard_Real Deflection);
71 //=======================================================================
72 //function : DublicateOfLinesProcessing
73 //purpose : Decides, if rejecting current line is necessary
74 //=======================================================================
75 static void DublicateOfLinesProcessing( const IntWalk_PWalking& thePW,
76 const Standard_Integer theWLID,
77 IntPatch_SequenceOfLine& theLines,
78 Standard_Boolean& theIsRejectReq)
80 const Handle(IntPatch_WLine)& anExistWL =
81 *((Handle(IntPatch_WLine)*)&theLines.Value(theWLID));
82 const Standard_Integer aNbPrevPoints = anExistWL->NbPnts();
83 const Standard_Integer aNbCurrPoints = thePW.NbPoints();
85 if(aNbPrevPoints < aNbCurrPoints)
86 {//Remove preview line
87 theLines.Remove(theWLID);
88 theIsRejectReq = Standard_False;
90 else if(aNbPrevPoints == aNbCurrPoints)
92 Standard_Real aLPrev = 0.0, aLCurr = 0.0;
93 for(Standard_Integer aNbPP = 1; aNbPP < aNbPrevPoints; aNbPP++)
95 const gp_Pnt aP1prev(anExistWL->Point(aNbPP).Value()),
96 aP2prev(anExistWL->Point(aNbPP+1).Value());
97 const gp_Pnt aP1curr(thePW.Value(aNbPP).Value()),
98 aP2curr(thePW.Value(aNbPP+1).Value());
100 aLPrev += aP1prev.Distance(aP2prev);
101 aLCurr += aP1curr.Distance(aP2curr);
105 {//Remove preview line
106 theLines.Remove(theWLID);
107 theIsRejectReq = Standard_False;
112 //==================================================================================
115 //==================================================================================
116 IntPatch_PrmPrmIntersection::IntPatch_PrmPrmIntersection(): done(Standard_False)
120 //==================================================================================
121 // function : Perform
123 //==================================================================================
124 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
125 const Handle(Adaptor3d_TopolTool)& D1,
126 const Standard_Real TolTangency,
127 const Standard_Real Epsilon,
128 const Standard_Real Deflection,
129 const Standard_Real Increment)
131 IntPatch_Polyhedron Poly1( Surf1, D1->NbSamplesU(), D1->NbSamplesV() );
132 Perform( Surf1, Poly1, D1, TolTangency, Epsilon, Deflection, Increment );
135 //==================================================================================
136 // function : Perform
138 //==================================================================================
139 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
140 const IntPatch_Polyhedron& Poly1,
141 const Handle(Adaptor3d_TopolTool)& D1,
142 const Handle(Adaptor3d_HSurface)& Surf2,
143 const Handle(Adaptor3d_TopolTool)& D2,
144 const Standard_Real TolTangency,
145 const Standard_Real Epsilon,
146 const Standard_Real Deflection,
147 const Standard_Real Increment)
149 IntPatch_Polyhedron Poly2( Surf2 );
150 Perform( Surf1, Poly1, D1, Surf2, Poly2, D2, TolTangency, Epsilon, Deflection, Increment);
153 //==================================================================================
154 // function : Perform
156 //==================================================================================
157 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
158 const Handle(Adaptor3d_TopolTool)& D1,
159 const Handle(Adaptor3d_HSurface)& Surf2,
160 const IntPatch_Polyhedron& Poly2,
161 const Handle(Adaptor3d_TopolTool)& D2,
162 const Standard_Real TolTangency,
163 const Standard_Real Epsilon,
164 const Standard_Real Deflection,
165 const Standard_Real Increment)
167 IntPatch_Polyhedron Poly1( Surf1 );
168 Perform( Surf1, Poly1, D1, Surf2, Poly2, D2, TolTangency, Epsilon, Deflection, Increment );
171 //==================================================================================
172 // function : Perform
174 //==================================================================================
175 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
176 const IntPatch_Polyhedron& Poly1,
177 const Handle(Adaptor3d_TopolTool)& D1,
178 const Handle(Adaptor3d_HSurface)& Surf2,
179 const IntPatch_Polyhedron& Poly2,
180 const Handle(Adaptor3d_TopolTool)& D2,
181 const Standard_Real TolTangency,
182 const Standard_Real Epsilon,
183 const Standard_Real Deflection,
184 const Standard_Real Increment)
186 IntPatch_InterferencePolyhedron Interference(Poly1,Poly2);
187 empt = Standard_True;
188 done = Standard_True;
191 Standard_Integer nbLigSec = Interference.NbSectionLines();
192 Standard_Integer nbTanZon = Interference.NbTangentZones();
194 Standard_Integer NbLigCalculee = 0;
196 Standard_Real U1,U2,V1,V2;
197 Standard_Real pu1,pu2,pv1,pv2;
199 TColStd_Array1OfReal StartParams(1,4);
201 IntWalk_PWalking PW( Surf1, Surf2, TolTangency, Epsilon, Deflection, Increment );
203 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
204 Standard_Real incidence;
205 Standard_Real dminiPointLigne;
207 Standard_Boolean HasStartPoint,RejetLigne;
209 IntSurf_PntOn2S StartPOn2S;
211 Standard_Integer ver;
213 gp_Pnt Point3dDebut,Point3dFin;
215 if( nbLigSec >= 1 ) {
216 Standard_Integer *TabL = new Standard_Integer [nbLigSec+1];
218 for( ls = 1; ls <= nbLigSec; ls++ )
221 Standard_Boolean triok;
224 for(Standard_Integer b=2; b<=nbLigSec; b++) {
225 Standard_Integer nb_B = Interference.LineValue(TabL[b]).NumberOfPoints();
226 Standard_Integer nb_A = Interference.LineValue(TabL[b-1]).NumberOfPoints();
228 Standard_Integer tyu=TabL[b];
231 triok=Standard_False;
234 } while( triok==Standard_False );
236 for( ls = 1; ls <= nbLigSec; ls++) {
237 const Intf_SectionLine& LineSec=Interference.LineValue(TabL[ls]);
238 Standard_Integer nbp = LineSec.NumberOfPoints();
240 Standard_Integer *TabPtDep = new Standard_Integer [nbp+1];
241 Standard_Integer ilig;
242 for( ilig = 1; ilig <= nbp; ilig++)
245 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
246 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
248 SectionPointToParameters(LineSec.GetPoint(1),Poly1,Poly2,UminLig1,VminLig1,UminLig2,VminLig2);
255 for( ilig = 2; ilig <= nbp; ilig++ ) {
256 SectionPointToParameters(LineSec.GetPoint(ilig),Poly1,Poly2,U1,V1,U2,V2);
258 if(U1>UmaxLig1) UmaxLig1=U1;
259 if(V1>VmaxLig1) VmaxLig1=V1;
260 if(U2>UmaxLig2) UmaxLig2=U2;
261 if(V2>VmaxLig2) VmaxLig2=V2;
263 if(U1<UminLig1) UminLig1=U1;
264 if(V1<VminLig1) VminLig1=V1;
265 if(U2<UminLig2) UminLig2=U2;
266 if(V2<VminLig2) VminLig2=V2;
269 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
270 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
271 Standard_Integer IndicePointdeDepart1 = 0,IndicePointdeDepart2 = 0;
272 Standard_Boolean lignetrouvee=Standard_False;
275 NombreDePointsDeDepartDuCheminement++;
276 if(NombreDePointsDeDepartDuCheminement == 1) {
278 Standard_Integer nbp1_4=nbp/4;
279 Standard_Integer nbp3_4=nbp-nbp1_4;
281 Standard_Integer nsp;
282 for(nsp=nbp/2; nsp<nbp3_4; nsp++) {
283 Standard_Real CurrentIncidence = LineSec.GetPoint(nsp).Incidence();
284 if(CurrentIncidence < incidence) {
286 incidence = 0.9*CurrentIncidence;
290 for(nsp=nbp/2; nsp>nbp1_4; nsp--) {
291 Standard_Real CurrentIncidence = LineSec.GetPoint(nsp).Incidence();
292 if(CurrentIncidence < incidence) {
294 incidence = 0.9*CurrentIncidence;
299 NombreDePointsDeDepartDuCheminement=3;
301 IndicePointdeDepart1 = nbps2;
303 else if(NombreDePointsDeDepartDuCheminement == 2) {
304 if(IndicePointdeDepart1 == 1) {
306 IndicePointdeDepart2 = nbps2;
310 IndicePointdeDepart2 = 1;
313 else if(NombreDePointsDeDepartDuCheminement == 3) {
314 if(IndicePointdeDepart1 == nbp)
315 nbps2 = (IndicePointdeDepart1+IndicePointdeDepart2)/2;
320 nbps2 = NombreDePointsDeDepartDuCheminement-3;
321 NombreDePointsDeDepartDuCheminement++;
324 if(TabPtDep[nbps2]==0) {
326 SectionPointToParameters(LineSec.GetPoint(nbps2),Poly1,Poly2,U1,V1,U2,V2);
333 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
334 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
337 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
338 NbLigCalculee = SLin.Length();
340 for( l=1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
341 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
343 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
344 dminiPointLigne = 0.0;
348 if(dminiPointLigne > SeuildPointLigne) {
349 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
351 if(PW.NbPoints()>2) {
352 RejetLigne = Standard_False;
353 Point3dDebut = PW.Value(1).Value();
354 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
355 Point3dFin = PointFin.Value();
356 for( ver = 1 ; ver<= NbLigCalculee ; ver++) {
357 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
359 // Check end point if it is on existing line.
360 // Start point is checked before.
361 if (IsPointOnLine(PointFin, verwline, Deflection)) {
362 RejetLigne = Standard_True;
366 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
367 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
368 if( (Point3dDebut.Distance(verPointDebut.Value()) <= TolTangency) &&
369 (Point3dFin.Distance(verPointFin.Value()) <= TolTangency))
371 RejetLigne = Standard_True;
378 DublicateOfLinesProcessing(PW, ver, SLin, RejetLigne);
382 // Calculation transition
383 IntSurf_TypeTrans trans1,trans2;
384 Standard_Real locu,locv;
385 gp_Vec norm1,norm2,d1u,d1v;
387 Standard_Integer indextg;
388 gp_Vec tgline(PW.TangentAtLine(indextg));
389 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
390 Surf1->D1(locu,locv,ptbid,d1u,d1v);
391 norm1 = d1u.Crossed(d1v);
392 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
393 Surf2->D1(locu,locv,ptbid,d1u,d1v);
394 norm2 = d1u.Crossed(d1v);
395 if(tgline.DotCross(norm2,norm1)>0.) {
396 trans1 = IntSurf_Out;
401 trans2 = IntSurf_Out;
404 Standard_Real TolTang = TolTangency;
405 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
406 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
407 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
409 if(wline->NbVertex() == 0) {
411 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
412 POn2S.Parameters(pu1,pv1,pu2,pv2);
413 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
414 vtx.SetParameters(pu1,pv1,pu2,pv2);
416 wline->AddVertex(vtx);
418 POn2S = PW.Line()->Value(wline->NbPnts());
419 POn2S.Parameters(pu1,pv1,pu2,pv2);
420 vtx.SetValue(Point3dFin,TolTang,Standard_False);
421 vtx.SetParameters(pu1,pv1,pu2,pv2);
422 vtx.SetParameter(wline->NbPnts());
423 wline->AddVertex(vtx);
426 lignetrouvee = Standard_True;
427 AddWLine(SLin, wline, Deflection);
428 empt = Standard_False;
432 }// dminiPointLigne > SeuildPointLigne
434 }// TabPtDep[nbps2]==0
435 } while( nbp>5 && ( !( ( (NombreDePointsDeDepartDuCheminement >= 3) && lignetrouvee ) ||
436 ( (NombreDePointsDeDepartDuCheminement-3>=nbp) && !lignetrouvee ) ) ) );
444 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
445 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
447 UminLig1=VminLig1=UminLig2=VminLig2=RealLast();
448 UmaxLig1=VmaxLig1=UmaxLig2=VmaxLig2=-UminLig1;
451 for(z=1; z <= nbTanZon; z++) {
452 const Intf_TangentZone& TangentZone=Interference.ZoneValue(z);
453 for(Standard_Integer pz=1; pz<=TangentZone.NumberOfPoints(); pz++) {
454 SectionPointToParameters(TangentZone.GetPoint(pz),Poly1,Poly2,U1,V1,U2,V2);
456 if(U1>UmaxLig1) UmaxLig1=U1;
457 if(V1>VmaxLig1) VmaxLig1=V1;
458 if(U2>UmaxLig2) UmaxLig2=U2;
459 if(V2>VmaxLig2) VmaxLig2=V2;
461 if(U1<UminLig1) UminLig1=U1;
462 if(V1<VminLig1) VminLig1=V1;
463 if(U2<UminLig2) UminLig2=U2;
464 if(V2<VminLig2) VminLig2=V2;
468 for(z=1; z <= nbTanZon; z++) {
469 const Intf_TangentZone& TangentZone=Interference.ZoneValue(z);
471 for( pz=1; pz<=TangentZone.NumberOfPoints(); pz++) {
472 SectionPointToParameters(TangentZone.GetPoint(pz),Poly1,Poly2,U1,V1,U2,V2);
479 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
481 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
482 NbLigCalculee = SLin.Length();
483 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
485 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
486 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
488 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
489 dminiPointLigne = 0.0;
493 if(dminiPointLigne > SeuildPointLigne) {
494 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
496 if(PW.NbPoints()>2) {
497 RejetLigne = Standard_False;
498 Point3dDebut = PW.Value(1).Value();
499 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
500 Point3dFin = PointFin.Value();
501 for(ver=1 ; ver<= NbLigCalculee ; ver++) {
502 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
504 // Check end point if it is on existing line.
505 // Start point is checked before.
506 if (IsPointOnLine(PointFin, verwline, Deflection)) {
507 RejetLigne = Standard_True;
511 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
512 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
513 if( (Point3dDebut.Distance(verPointDebut.Value()) < TolTangency) ||
514 (Point3dFin.Distance(verPointFin.Value()) < TolTangency))
516 RejetLigne = Standard_True;
523 DublicateOfLinesProcessing(PW, ver, SLin, RejetLigne);
527 IntSurf_TypeTrans trans1,trans2;
528 Standard_Real locu,locv;
529 gp_Vec norm1,norm2,d1u,d1v;
531 Standard_Integer indextg;
532 gp_Vec tgline(PW.TangentAtLine(indextg));
533 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
534 Surf1->D1(locu,locv,ptbid,d1u,d1v);
535 norm1 = d1u.Crossed(d1v);
536 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
537 Surf2->D1(locu,locv,ptbid,d1u,d1v);
538 norm2 = d1u.Crossed(d1v);
539 if(tgline.DotCross(norm2,norm1)>0.) {
540 trans1 = IntSurf_Out;
545 trans2 = IntSurf_Out;
548 Standard_Real TolTang = TolTangency;
549 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
550 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
551 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
553 if(wline->NbVertex() == 0) {
555 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
556 POn2S.Parameters(pu1,pv1,pu2,pv2);
557 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
558 vtx.SetParameters(pu1,pv1,pu2,pv2);
560 wline->AddVertex(vtx);
562 POn2S = PW.Line()->Value(wline->NbPnts());
563 POn2S.Parameters(pu1,pv1,pu2,pv2);
564 vtx.SetValue(Point3dFin,TolTang,Standard_False);
565 vtx.SetParameters(pu1,pv1,pu2,pv2);
566 vtx.SetParameter(wline->NbPnts());
567 wline->AddVertex(vtx);
570 AddWLine(SLin, wline, Deflection);
571 empt = Standard_False;
575 }// dminiPointLigne > SeuildPointLigne
581 //==================================================================================
582 // function : Perform
584 //==================================================================================
585 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
586 const IntPatch_Polyhedron& Poly1,
587 const Handle(Adaptor3d_TopolTool)& D1,
588 const Standard_Real TolTangency,
589 const Standard_Real Epsilon,
590 const Standard_Real Deflection,
591 const Standard_Real Increment)
593 IntPatch_InterferencePolyhedron Interference(Poly1);
594 empt = Standard_True;
595 done = Standard_True;
598 Standard_Integer nbLigSec = Interference.NbSectionLines();
599 Standard_Integer nbTanZon = Interference.NbTangentZones();
601 Standard_Integer NbPntOn2SOnLine;
602 Standard_Integer NbLigCalculee = 0;
604 Standard_Real U1,U2,V1,V2;
605 Standard_Real pu1,pu2,pv1,pv2;
607 TColStd_Array1OfReal StartParams(1,4);
608 IntWalk_PWalking PW(Surf1,Surf1,TolTangency,Epsilon,Deflection,Increment);
610 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
611 Standard_Real incidence;
612 Standard_Real dminiPointLigne;
614 Standard_Boolean HasStartPoint,RejetLigne;
616 IntSurf_PntOn2S StartPOn2S;
618 Standard_Integer ver;
620 gp_Pnt Point3dDebut,Point3dFin;
624 for( ls = 1; ls <= nbLigSec; ls++) {
625 const Intf_SectionLine& LineSec=Interference.LineValue(ls);
626 Standard_Integer nbp = LineSec.NumberOfPoints();
627 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
628 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
629 Standard_Integer IndicePointdeDepart1 = 0, IndicePointdeDepart2 = 0;
631 NombreDePointsDeDepartDuCheminement++;
632 if(NombreDePointsDeDepartDuCheminement == 1) {
634 Standard_Integer nsp1;
635 for( nsp1= nbp/2; nsp1 >= 1; nsp1--) {
636 SectionPointToParameters(LineSec.GetPoint(nsp1),Poly1,Poly1,U1,V1,U2,V2);
637 Standard_Real CurrentIncidence = Abs(U1-U2)+Abs(V1-V2);
638 if(CurrentIncidence > incidence) {
640 incidence = CurrentIncidence;
643 for( nsp1 = nbp/2; nsp1 <= nbp; nsp1++) {
644 SectionPointToParameters(LineSec.GetPoint(nsp1),Poly1,Poly1,U1,V1,U2,V2);
645 Standard_Real CurrentIncidence = Abs(U1-U2)+Abs(V1-V2);
646 if(CurrentIncidence > incidence) {
648 incidence = CurrentIncidence;
653 NombreDePointsDeDepartDuCheminement=3;
655 IndicePointdeDepart1 = nbps2;
657 else if(NombreDePointsDeDepartDuCheminement == 2) {
658 if(IndicePointdeDepart1 == 1) {
660 IndicePointdeDepart2 = nbps2;
664 IndicePointdeDepart2 = 1;
668 if(IndicePointdeDepart1 == nbp)
669 nbps2 = (IndicePointdeDepart1+IndicePointdeDepart2)/2;
674 SectionPointToParameters(LineSec.GetPoint(nbps2),Poly1,Poly1,U1,V1,U2,V2);
681 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
682 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
684 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
685 if(Abs(pu1-pu2)>1e-7 || Abs(pv1-pv2)>1e-7) {
686 NbLigCalculee = SLin.Length();
688 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
689 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
690 if( (testwline->IsOutSurf1Box(gp_Pnt2d(pu1,pv1))==Standard_False) &&
691 (testwline->IsOutSurf2Box(gp_Pnt2d(pu2,pv2))==Standard_False) &&
692 (testwline->IsOutBox(StartPOn2S.Value())==Standard_False) ) {
693 NbPntOn2SOnLine = testwline->NbPnts();
695 for( ll=1; (ll < NbPntOn2SOnLine) && (dminiPointLigne >= SeuildPointLigne); ll++) {
696 Standard_Real t,Au1,Av1,Au2,Av2,Bu1,Bv1,Bu2,Bv2;
697 testwline->Point(ll).Parameters(Au1,Av1,Au2,Av2);
698 testwline->Point(ll+1).Parameters(Bu1,Bv1,Bu2,Bv2);
714 if((pu1>=Au1) && (pu1<=Bu1) && (pv1>=Av1) && (pv1<=Bv1))
715 dminiPointLigne = 0.0;
717 if((pu2>=Au1) && (pu2<=Bu1) && (pv2>=Av1) && (pv2<=Bv1))
718 dminiPointLigne = 0.0;
724 if(dminiPointLigne > SeuildPointLigne) {
725 PW.Perform(StartParams);
727 if(PW.NbPoints()>2) {
728 RejetLigne = Standard_False;
729 Point3dDebut = PW.Value(1).Value();
730 Point3dFin = PW.Value(PW.NbPoints()).Value();
731 for(ver=1 ; ver<= NbLigCalculee ; ver++) {
732 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
733 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
734 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
735 if( (Point3dDebut.Distance(verPointDebut.Value()) < TolTangency) ||
736 (Point3dFin.Distance(verPointFin.Value()) < TolTangency))
738 RejetLigne = Standard_True;
745 DublicateOfLinesProcessing(PW, ver, SLin, RejetLigne);
749 IntSurf_TypeTrans trans1,trans2;
750 Standard_Real locu,locv;
751 gp_Vec norm1,norm2,d1u,d1v;
753 Standard_Integer indextg;
754 gp_Vec tgline(PW.TangentAtLine(indextg));
755 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
756 Surf1->D1(locu,locv,ptbid,d1u,d1v);
757 norm1 = d1u.Crossed(d1v);
758 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
759 Surf1->D1(locu,locv,ptbid,d1u,d1v);
760 norm2 = d1u.Crossed(d1v);
761 if (tgline.DotCross(norm2,norm1)>0.) {
762 trans1 = IntSurf_Out;
767 trans2 = IntSurf_Out;
770 IntSurf_LineOn2S LineOn2S;
771 Standard_Integer nbpw,imin,imax,i;
772 nbpw = PW.Line()->NbPoints();
773 Standard_Real u1,v1,u2,v2;
778 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
779 Pi.Parameters(u1,v1,u2,v2);
780 } while((i<nbpw)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
789 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
790 Pi.Parameters(u1,v1,u2,v2);
791 } while((i>2)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
797 Handle(IntSurf_LineOn2S) PWLine = new IntSurf_LineOn2S();
798 for(i=imin;i<=imax;i++)
799 PWLine->Add(PW.Line()->Value(i));
801 Standard_Real TolTang = TolTangency;
802 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PWLine,Standard_False,trans1,trans2);
803 const IntSurf_PntOn2S& POn2SDeb = wline->Point(1);
804 const IntSurf_PntOn2S& POn2SFin = wline->Point(wline->NbPnts());
805 if((POn2SDeb.Value()).Distance(POn2SFin.Value()) <= TolTangency) {
806 Standard_Real u1t,v1t,u2t,v2t;
807 POn2SDeb.Parameters(u1t,v1t,u2t,v2t);
809 vtx.SetValue(POn2SDeb.Value(),TolTang,Standard_False);
810 vtx.SetParameters(u2t,v2t,u1t,v1t);
811 vtx.SetParameter(wline->NbPnts());
812 wline->SetPoint(wline->NbPnts(),vtx);
814 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf1,Standard_True,TolTang);
815 if(wline->NbVertex() == 0) {
817 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
818 POn2S.Parameters(pu1,pv1,pu2,pv2);
819 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
820 vtx.SetParameters(pu1,pv1,pu2,pv2);
822 wline->AddVertex(vtx);
824 POn2S = PW.Line()->Value(wline->NbPnts());
825 POn2S.Parameters(pu1,pv1,pu2,pv2);
826 vtx.SetValue(Point3dFin,TolTang,Standard_False);
827 vtx.SetParameters(pu1,pv1,pu2,pv2);
828 vtx.SetParameter(wline->NbPnts());
829 wline->AddVertex(vtx);
832 empt = Standard_False;
837 }// dminiPointLigne > SeuildPointLigne
840 } while(nbp>5 && NombreDePointsDeDepartDuCheminement<3);
845 for( z = 1; z <= nbTanZon; z++) {
846 const Intf_TangentZone& TangentZone=Interference.ZoneValue(z);
847 for(Standard_Integer pz=1; pz<=TangentZone.NumberOfPoints(); pz++) {
848 SectionPointToParameters(TangentZone.GetPoint(pz),Poly1,Poly1,U1,V1,U2,V2);
855 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
857 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
858 if(Abs(pu1-pu2)>1e-7 || Abs(pv1-pv2)>1e-7) {
859 NbLigCalculee = SLin.Length();
860 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
862 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
863 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
864 if( (testwline->IsOutSurf1Box(gp_Pnt2d(pu1,pv1))==Standard_False) &&
865 (testwline->IsOutSurf2Box(gp_Pnt2d(pu2,pv2))==Standard_False) &&
866 (testwline->IsOutBox(StartPOn2S.Value())==Standard_False) ) {
867 NbPntOn2SOnLine = testwline->NbPnts();
869 for( ll = 1; (ll < NbPntOn2SOnLine) && (dminiPointLigne >= SeuildPointLigne); ll++) {
870 Standard_Real t,Au1,Av1,Au2,Av2,Bu1,Bv1,Bu2,Bv2;
871 testwline->Point(ll).Parameters(Au1,Av1,Au2,Av2);
872 testwline->Point(ll+1).Parameters(Bu1,Bv1,Bu2,Bv2);
887 if((pu1>=Au1) && (pu1<=Bu1) && (pv1>=Av1) && (pv1<=Bv1))
888 dminiPointLigne = 0.0;
890 if((pu2>=Au1) && (pu2<=Bu1) && (pv2>=Av1) && (pv2<=Bv1))
891 dminiPointLigne = 0.0;
897 if(dminiPointLigne > SeuildPointLigne) {
898 PW.Perform(StartParams);
900 if(PW.NbPoints()>2) {
901 RejetLigne = Standard_False;
902 Point3dDebut = PW.Value(1).Value();
903 Point3dFin = PW.Value(PW.NbPoints()).Value();
904 for( ver = 1 ; ver<= NbLigCalculee ; ver++) {
905 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
906 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
907 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
908 if( (Point3dDebut.Distance(verPointDebut.Value()) < TolTangency) ||
909 (Point3dFin.Distance(verPointFin.Value()) < TolTangency))
911 RejetLigne = Standard_True;
918 DublicateOfLinesProcessing(PW, ver, SLin, RejetLigne);
922 IntSurf_TypeTrans trans1,trans2;
923 Standard_Real locu,locv;
924 gp_Vec norm1,norm2,d1u,d1v;
926 Standard_Integer indextg;
927 gp_Vec tgline(PW.TangentAtLine(indextg));
928 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
929 Surf1->D1(locu,locv,ptbid,d1u,d1v);
930 norm1 = d1u.Crossed(d1v);
931 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
932 Surf1->D1(locu,locv,ptbid,d1u,d1v);
933 norm2 = d1u.Crossed(d1v);
934 if(tgline.DotCross(norm2,norm1)>0.) {
935 trans1 = IntSurf_Out;
940 trans2 = IntSurf_Out;
943 IntSurf_LineOn2S LineOn2S;
944 Standard_Integer nbp,imin,imax,i;
945 nbp = PW.Line()->NbPoints();
946 Standard_Real u1,v1,u2,v2;
951 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
952 Pi.Parameters(u1,v1,u2,v2);
953 } while((i<nbp)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
962 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
963 Pi.Parameters(u1,v1,u2,v2);
964 } while((i>2)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
970 Handle(IntSurf_LineOn2S) PWLine = new IntSurf_LineOn2S();
971 for(i=imin;i<=imax;i++)
972 PWLine->Add(PW.Line()->Value(i));
974 Standard_Real TolTang = TolTangency;
975 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PWLine,Standard_False,trans1,trans2);
976 const IntSurf_PntOn2S& POn2SDeb = wline->Point(1);
977 const IntSurf_PntOn2S& POn2SFin = wline->Point(wline->NbPnts());
978 if((POn2SDeb.Value()).Distance(POn2SFin.Value()) <= TolTangency) {
979 Standard_Real u1t,v1t,u2t,v2t;
980 POn2SDeb.Parameters(u1t,v1t,u2t,v2t);
982 vtx.SetValue(POn2SDeb.Value(),TolTang,Standard_False);
983 vtx.SetParameters(u2t,v2t,u1t,v1t);
984 vtx.SetParameter(wline->NbPnts());
985 wline->SetPoint(wline->NbPnts(),vtx);
988 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf1,Standard_True,TolTang);
990 if(wline->NbVertex() == 0) {
992 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
993 POn2S.Parameters(pu1,pv1,pu2,pv2);
994 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
995 vtx.SetParameters(pu1,pv1,pu2,pv2);
997 wline->AddVertex(vtx);
999 POn2S = PW.Line()->Value(wline->NbPnts());
1000 POn2S.Parameters(pu1,pv1,pu2,pv2);
1001 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1002 vtx.SetParameters(pu1,pv1,pu2,pv2);
1003 vtx.SetParameter(wline->NbPnts());
1004 wline->AddVertex(vtx);
1008 empt = Standard_False;
1013 }// dminiPointLigne > SeuildPointLigne
1020 //==================================================================================
1021 // function : NewLine
1023 //==================================================================================
1024 Handle(IntPatch_Line) IntPatch_PrmPrmIntersection::NewLine (const Handle(Adaptor3d_HSurface)& Surf1,
1025 const Handle(Adaptor3d_HSurface)& Surf2,
1026 const Standard_Integer NumLine,
1027 const Standard_Integer Low,
1028 const Standard_Integer High,
1029 const Standard_Integer NbPntsToInsert) const
1031 Standard_Integer NbPnts = NbPntsToInsert + High - Low;
1032 if(NumLine>NbLines() || NumLine<1 || Low>=High )
1033 Standard_OutOfRange::Raise(" IntPatch_PrmPrmIntersection NewLine ");
1034 //------------------------------------------------------------------
1035 //-- Indice : Low Low+1 I I+1 High --
1037 //-- Abs.Curv. : S(Low) S(I) S(I+1) S(High) --
1039 //-- On echantillonne a abcisse curviligne --
1041 //-- L abcisse est calculee sur les params U1,V1 --
1042 //------------------------------------------------------------------
1043 TColStd_Array1OfReal U1(Low,High);
1044 TColStd_Array1OfReal V1(Low,High);
1045 TColStd_Array1OfReal U2(Low,High);
1046 TColStd_Array1OfReal V2(Low,High);
1047 TColStd_Array1OfReal AC(Low,High);
1050 Handle(IntPatch_WLine) TheLine = Handle(IntPatch_WLine)::DownCast(Line(NumLine));
1051 const IntSurf_PntOn2S& Point=TheLine->Point(Low);
1052 Standard_Real u1,v1,u2,v2;
1053 Point.Parameters(u1,v1,u2,v2);
1060 IntWalk_PWalking PW(Surf1,Surf2,0.000001,0.000001,0.001,0.001);
1063 for(i=Low+1; i<=High; i++)
1065 const IntSurf_PntOn2S& Pointi=TheLine->Point(i);
1066 Pointi.Parameters(u1,v1,u2,v2);
1072 Standard_Real du1=u1-U1(i-1);
1073 Standard_Real dv1=v1-V1(i-1);
1075 AC(i) = AC(i-1) + Sqrt((du1*du1)+(dv1*dv1));
1078 Handle(IntSurf_LineOn2S) ResultPntOn2SLine = new IntSurf_LineOn2S();
1080 IntSurf_PntOn2S StartPOn2S;
1081 TColStd_Array1OfReal StartParams(1,4);
1083 ResultPntOn2SLine->Add(TheLine->Point(Low));
1085 ds = AC(High) / (NbPnts-1);
1086 Standard_Integer Indice = Low;
1088 Standard_Real dsmin = ds*0.3;
1089 Standard_Real smax = AC(High);
1091 for(i=2,s=ds; (i<NbPnts)&&(s<smax); i++,s+=ds)
1093 while(AC(Indice+1) <= s)
1095 ResultPntOn2SLine->Add(TheLine->Point(Indice));
1098 Standard_Real a = s - AC(Indice);
1099 Standard_Real b = AC(Indice+1) - s;
1100 Standard_Real nab = 1.0/(a+b);
1101 //----------------------------------------------------------
1102 //-- Verification : Si Dist au prochain point < dsmin --
1103 //-- Si Dist au precedent point < dsmin --
1105 //----------------------------------------------------------
1106 if((nab > ds)&&(a>dsmin)&&(b>dsmin))
1108 StartParams(1) = (U1(Indice) * b + U1(Indice+1) * a) * nab;
1109 StartParams(2) = (V1(Indice) * b + V1(Indice+1) * a) * nab;
1110 StartParams(3) = (U2(Indice) * b + U2(Indice+1) * a) * nab;
1111 StartParams(4) = (V2(Indice) * b + V2(Indice+1) * a) * nab;
1113 Standard_Boolean HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1115 ResultPntOn2SLine->Add(StartPOn2S);
1121 ResultPntOn2SLine->Add(TheLine->Point(High));
1123 return(new IntPatch_WLine(ResultPntOn2SLine,Standard_False));
1126 //==================================================================================
1127 // function : SectionPointToParameters
1129 //==================================================================================
1130 void SectionPointToParameters(const Intf_SectionPoint& Sp,
1131 const IntPatch_Polyhedron& Poly1,
1132 const IntPatch_Polyhedron& Poly2,
1139 Standard_Integer Adr1,Adr2;
1140 Standard_Real Param,u,v;
1143 Standard_Integer Pt1,Pt2,Pt3;
1145 Sp.InfoFirst(typ,Adr1,Adr2,Param);
1147 case Intf_VERTEX: //-- Adr1 est le numero du vertex
1149 Poly1.Parameters(Adr1,u1,v1);
1154 Poly1.Parameters(Adr1,u1,v1);
1155 Poly1.Parameters(Adr2,u,v);
1156 u1+= Param * (u-u1);
1157 v1+= Param * (v-v1);
1162 Standard_Real ua,va,ub,vb,uc,vc,ca,cb,cc,cabc;
1163 Poly1.Triangle(Adr1,Pt1,Pt2,Pt3);
1164 gp_Pnt PA(Poly1.Point(Pt1));
1165 gp_Pnt PB(Poly1.Point(Pt2));
1166 gp_Pnt PC(Poly1.Point(Pt3));
1167 Poly1.Parameters(Pt1,ua,va);
1168 Poly1.Parameters(Pt2,ub,vb);
1169 Poly1.Parameters(Pt3,uc,vc);
1170 gp_Vec Normale(gp_Vec(PA,PB).Crossed(gp_Vec(PA,PC)));
1171 cc = (gp_Vec(PA,PB).Crossed(gp_Vec(PA,P))).Dot(Normale);
1172 ca = (gp_Vec(PB,PC).Crossed(gp_Vec(PB,P))).Dot(Normale);
1173 cb = (gp_Vec(PC,PA).Crossed(gp_Vec(PC,P))).Dot(Normale);
1174 cabc = ca + cb + cc;
1176 ca/=cabc; cb/=cabc; cc/=cabc;
1178 u1 = ca * ua + cb * ub + cc * uc;
1179 v1 = ca * va + cb * vb + cc * vc;
1184 //-- cout<<" Default dans SectionPointToParameters "<<endl;
1190 Sp.InfoSecond(typ,Adr1,Adr2,Param);
1192 case Intf_VERTEX: //-- Adr1 est le numero du vertex
1194 Poly2.Parameters(Adr1,u2,v2);
1199 Poly2.Parameters(Adr1,u2,v2);
1200 Poly2.Parameters(Adr2,u,v);
1201 u2+= Param * (u-u2);
1202 v2+= Param * (v-v2);
1207 Standard_Real ua,va,ub,vb,uc,vc,ca,cb,cc,cabc;
1208 Poly2.Triangle(Adr1,Pt1,Pt2,Pt3);
1209 gp_Pnt PA(Poly2.Point(Pt1));
1210 gp_Pnt PB(Poly2.Point(Pt2));
1211 gp_Pnt PC(Poly2.Point(Pt3));
1212 Poly2.Parameters(Pt1,ua,va);
1213 Poly2.Parameters(Pt2,ub,vb);
1214 Poly2.Parameters(Pt3,uc,vc);
1215 gp_Vec Normale(gp_Vec(PA,PB).Crossed(gp_Vec(PA,PC)));
1216 cc = (gp_Vec(PA,PB).Crossed(gp_Vec(PA,P))).Dot(Normale);
1217 ca = (gp_Vec(PB,PC).Crossed(gp_Vec(PB,P))).Dot(Normale);
1218 cb = (gp_Vec(PC,PA).Crossed(gp_Vec(PC,P))).Dot(Normale);
1219 cabc = ca + cb + cc;
1221 ca/=cabc; cb/=cabc; cc/=cabc;
1223 u2 = ca * ua + cb * ub + cc * uc;
1224 v2 = ca * va + cb * vb + cc * vc;
1229 //-- cout<<" Default dans SectionPointToParameters "<<endl;
1235 //==================================================================================
1236 // function : RemplitLin
1238 //==================================================================================
1239 void IntPatch_PrmPrmIntersection::RemplitLin(const Standard_Integer x1,
1240 const Standard_Integer y1,
1241 const Standard_Integer z1,
1242 const Standard_Integer x2,
1243 const Standard_Integer y2,
1244 const Standard_Integer z2,
1245 IntPatch_PrmPrmIntersection_T3Bits& Map) const
1248 xg=x1-x2; if(xg<0) xg=-xg;
1249 yg=y1-y2; if(yg<0) yg=-yg;
1250 zg=z1-z2; if(zg<0) zg=-zg;
1251 if(DansGrille(x1) && DansGrille(y1) && DansGrille(z1)) {
1252 Standard_Integer t = GrilleInteger(x1,y1,z1);
1255 if(xg<=1 && yg<=1 && zg<=1) return;
1259 RemplitLin(x1,y1,z1,xg,yg,zg,Map);
1260 RemplitLin(x2,y2,z2,xg,yg,zg,Map);
1263 //==================================================================================
1264 // function : RemplitTri
1266 //==================================================================================
1267 void IntPatch_PrmPrmIntersection::RemplitTri(const Standard_Integer x1,
1268 const Standard_Integer y1,
1269 const Standard_Integer z1,
1270 const Standard_Integer x2,
1271 const Standard_Integer y2,
1272 const Standard_Integer z2,
1273 const Standard_Integer x3,
1274 const Standard_Integer y3,
1275 const Standard_Integer z3,
1276 IntPatch_PrmPrmIntersection_T3Bits& Map) const
1278 if(x1==x2 && x1==x3 && y1==y2 && y1==y3 && z1==z2 && z1==z3) {
1279 if(DansGrille(x1) && DansGrille(y1) && DansGrille(z1)) {
1280 Standard_Integer t = GrilleInteger(x1,y1,z1);
1286 Standard_Integer xg=(x1+x2+x3)/3;
1287 Standard_Integer yg=(y1+y2+y3)/3;
1288 Standard_Integer zg=(z1+z2+z3)/3;
1289 if(xg==x1 && yg==y1 && zg==z1) {
1290 RemplitLin(x1,y1,z1,x2,y2,z2,Map);
1291 RemplitLin(x1,y1,z1,x3,y3,z3,Map);
1294 if(xg==x2 && yg==y2 && zg==z2) {
1295 RemplitLin(x2,y2,z2,x1,y1,z1,Map);
1296 RemplitLin(x2,y2,z2,x3,y3,z3,Map);
1299 if(xg==x3 && yg==y3 && zg==z3) {
1300 RemplitLin(x3,y3,z3,x2,y2,z2,Map);
1301 RemplitLin(x3,y3,z3,x1,y1,z1,Map);
1304 if(DansGrille(xg) && DansGrille(yg) && DansGrille(zg)) {
1305 Standard_Integer t = GrilleInteger(xg,yg,zg);
1308 if(xg!=x3 || yg!=y3 || zg!=z3) RemplitTri(x1,y1,z1, x2,y2,z2, xg,yg,zg, Map);
1309 if(xg!=x1 || yg!=y1 || zg!=z1) RemplitTri(xg,yg,zg, x2,y2,z2, x3,y3,z3, Map);
1310 if(xg!=x2 || yg!=y2 || zg!=z2) RemplitTri(x1,y1,z1, xg,yg,zg, x3,y3,z3, Map);
1314 //==================================================================================
1315 // function : Remplit
1317 //==================================================================================
1318 void IntPatch_PrmPrmIntersection::Remplit(const Standard_Integer a,
1319 const Standard_Integer b,
1320 const Standard_Integer c,
1321 IntPatch_PrmPrmIntersection_T3Bits& Map) const
1323 int iax,iay,iaz,ibx,iby,ibz,icx,icy,icz;
1324 if(a!=-1) Map.Add(a);
1325 if(b!=-1) Map.Add(b);
1326 if(c!=-1) Map.Add(c);
1328 if(a!=-1 && b!=-1 && c!=-1 ) {
1329 IntegerGrille(a,iax,iay,iaz);
1330 IntegerGrille(b,ibx,iby,ibz);
1331 IntegerGrille(c,icx,icy,icz);
1332 RemplitTri(iax,iay,iaz,ibx,iby,ibz,icx,icy,icz,Map);
1338 //=======================================================================
1339 //function : Perform
1341 //=======================================================================
1342 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
1343 const Handle(Adaptor3d_TopolTool)& D1,
1344 const Handle(Adaptor3d_HSurface)& Surf2,
1345 const Handle(Adaptor3d_TopolTool)& D2,
1346 const Standard_Real TolTangency,
1347 const Standard_Real Epsilon,
1348 const Standard_Real Deflection,
1349 const Standard_Real Increment,
1350 IntSurf_ListOfPntOn2S& LOfPnts,
1351 const Standard_Boolean RestrictLine)
1353 if (LOfPnts.IsEmpty()){
1354 done = Standard_True;
1358 empt = Standard_True;
1361 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
1362 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
1363 Standard_Real U1,U2,V1,V2;
1365 UminLig1 = Surf1->FirstUParameter();
1366 VminLig1 = Surf1->FirstVParameter();
1367 UmaxLig1 = Surf1->LastUParameter();
1368 VmaxLig1 = Surf1->LastVParameter();
1369 UminLig2 = Surf2->FirstUParameter();
1370 VminLig2 = Surf2->FirstVParameter();
1371 UmaxLig2 = Surf2->LastUParameter();
1372 VmaxLig2 = Surf2->LastVParameter();
1374 Standard_Real Periods [4];
1375 Periods[0] = (Surf1->IsUPeriodic())? Surf1->UPeriod() : 0.;
1376 Periods[1] = (Surf1->IsVPeriodic())? Surf1->VPeriod() : 0.;
1377 Periods[2] = (Surf2->IsUPeriodic())? Surf2->UPeriod() : 0.;
1378 Periods[3] = (Surf2->IsVPeriodic())? Surf2->VPeriod() : 0.;
1380 IntSurf_ListIteratorOfListOfPntOn2S IterLOP1(LOfPnts);
1381 if (Surf1->IsUClosed() || Surf1->IsVClosed() ||
1382 Surf2->IsUClosed() || Surf2->IsVClosed())
1384 Standard_Real TolPar = Precision::PConfusion();
1385 IntSurf_ListOfPntOn2S AdditionalPnts;
1386 Standard_Real NewU1, NewV1, NewU2, NewV2;
1387 for(; IterLOP1.More(); IterLOP1.Next())
1389 IntSurf_PntOn2S Pnt = IterLOP1.Value();
1390 Pnt.Parameters(U1, V1, U2, V2);
1391 IntSurf_PntOn2S NewPnt;
1392 if (Surf1->IsUClosed())
1394 if (Abs(U1 - Surf1->FirstUParameter()) <= TolPar)
1396 NewU1 = Surf1->LastUParameter();
1397 NewPnt.SetValue( NewU1, V1, U2, V2 );
1398 AdditionalPnts.Append(NewPnt);
1400 else if (Abs(U1 - Surf1->LastUParameter()) <= TolPar)
1402 NewU1 = Surf1->FirstUParameter();
1403 NewPnt.SetValue( NewU1, V1, U2, V2 );
1404 AdditionalPnts.Append(NewPnt);
1407 if (Surf1->IsVClosed())
1409 if (Abs(V1 - Surf1->FirstVParameter()) <= TolPar)
1411 NewV1 = Surf1->LastVParameter();
1412 NewPnt.SetValue( U1, NewV1, U2, V2 );
1413 AdditionalPnts.Append(NewPnt);
1415 else if (Abs(V1 - Surf1->LastVParameter()) <= TolPar)
1417 NewV1 = Surf1->FirstVParameter();
1418 NewPnt.SetValue( U1, NewV1, U2, V2 );
1419 AdditionalPnts.Append(NewPnt);
1422 if (Surf2->IsUClosed())
1424 if (Abs(U2 - Surf2->FirstUParameter()) <= TolPar)
1426 NewU2 = Surf2->LastUParameter();
1427 NewPnt.SetValue( U1, V1, NewU2, V2);
1428 AdditionalPnts.Append(NewPnt);
1430 else if (Abs(U2 - Surf2->LastUParameter()) <= TolPar)
1432 NewU2 = Surf2->FirstUParameter();
1433 NewPnt.SetValue( U1, V1, NewU2, V2);
1434 AdditionalPnts.Append(NewPnt);
1437 if (Surf2->IsVClosed())
1439 if (Abs(V2 - Surf2->FirstVParameter()) <= TolPar)
1441 NewV2 = Surf2->LastVParameter();
1442 NewPnt.SetValue( U1, V1, U2, NewV2 );
1443 AdditionalPnts.Append(NewPnt);
1445 else if (Abs(V2 - Surf2->LastVParameter()) <= TolPar)
1447 NewV2 = Surf2->FirstVParameter();
1448 NewPnt.SetValue( U1, V1, U2, NewV2 );
1449 AdditionalPnts.Append(NewPnt);
1453 //Cut repeated points
1454 for (IterLOP1.Initialize(LOfPnts); IterLOP1.More(); IterLOP1.Next())
1456 IntSurf_PntOn2S aPnt = IterLOP1.Value();
1457 aPnt.Parameters(U1, V1, U2, V2);
1458 IntSurf_ListIteratorOfListOfPntOn2S iter2(AdditionalPnts);
1459 while (iter2.More())
1461 IntSurf_PntOn2S aNewPnt = iter2.Value();
1462 aNewPnt.Parameters(NewU1, NewV1, NewU2, NewV2);
1463 if (Abs(U1 - NewU1) <= TolPar &&
1464 Abs(V1 - NewV1) <= TolPar &&
1465 Abs(U2 - NewU2) <= TolPar &&
1466 Abs(V2 - NewV2) <= TolPar)
1467 AdditionalPnts.Remove(iter2);
1473 LOfPnts.Append(AdditionalPnts);
1476 for(IterLOP1.Initialize(LOfPnts); IterLOP1.More(); IterLOP1.Next()){
1477 IntSurf_PntOn2S Pnt = IterLOP1.Value();
1478 Pnt.Parameters(U1, V1, U2, V2);
1479 if(U1>UmaxLig1) UmaxLig1=U1;
1480 if(V1>VmaxLig1) VmaxLig1=V1;
1481 if(U2>UmaxLig2) UmaxLig2=U2;
1482 if(V2>VmaxLig2) VmaxLig2=V2;
1484 if(U1<UminLig1) UminLig1=U1;
1485 if(V1<VminLig1) VminLig1=V1;
1486 if(U2<UminLig2) UminLig2=U2;
1487 if(V2<VminLig2) VminLig2=V2;
1490 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
1492 Standard_Integer NbLigCalculee = 0, ver;
1493 Standard_Real pu1,pu2,pv1,pv2, dminiPointLigne;
1494 Standard_Boolean HasStartPoint,RejetLigne;
1495 IntSurf_PntOn2S StartPOn2S;
1496 gp_Pnt Point3dDebut,Point3dFin;
1498 TColStd_Array1OfReal StartParams(1,4);
1499 IntWalk_PWalking PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
1501 IntSurf_ListIteratorOfListOfPntOn2S IterLOP2(LOfPnts);
1502 for(; IterLOP2.More(); IterLOP2.Next() ){
1504 IntSurf_PntOn2S cPnt = IterLOP2.Value();
1505 cPnt.Parameters(U1, V1, U2, V2);
1507 StartParams(1) = U1;
1508 StartParams(2) = V1;
1509 StartParams(3) = U2;
1510 StartParams(4) = V2;
1512 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1513 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
1515 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
1516 NbLigCalculee = SLin.Length();
1518 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
1519 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
1521 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
1522 dminiPointLigne = 0.0;
1526 if(dminiPointLigne > SeuildPointLigne) {
1527 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
1531 //Try to extend the intersection line to boundary, if it is possibly
1532 Standard_Boolean hasBeenAdded = PW.PutToBoundary(Surf1, Surf2);
1534 RejetLigne = Standard_False;
1535 Point3dDebut = PW.Value(1).Value();
1536 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
1537 Point3dFin = PointFin.Value();
1538 for( ver = 1 ; ver<= NbLigCalculee ; ver++) {
1539 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
1541 // Check end point if it is on existing line.
1542 // Start point is checked before.
1543 if (IsPointOnLine(PointFin, verwline, Deflection)) {
1544 RejetLigne = Standard_True;
1548 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
1549 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
1550 if( (Point3dDebut.Distance(verPointDebut.Value()) <= TolTangency) &&
1551 (Point3dFin.Distance(verPointFin.Value()) <= TolTangency))
1553 RejetLigne = Standard_True;
1560 DublicateOfLinesProcessing(PW, ver, SLin, RejetLigne);
1564 IntSurf_TypeTrans trans1,trans2;
1565 Standard_Real locu,locv;
1566 gp_Vec norm1,norm2,d1u,d1v;
1568 Standard_Integer indextg;
1569 gp_Vec tgline(PW.TangentAtLine(indextg));
1570 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1571 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1572 norm1 = d1u.Crossed(d1v);
1573 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1574 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1575 norm2 = d1u.Crossed(d1v);
1576 if( tgline.DotCross(norm2,norm1) >= 0. ) {
1577 trans1 = IntSurf_Out;
1578 trans2 = IntSurf_In;
1581 trans1 = IntSurf_In;
1582 trans2 = IntSurf_Out;
1585 Standard_Real TolTang = TolTangency;
1586 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1588 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang,hasBeenAdded);
1589 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang,hasBeenAdded);
1592 if(wline->NbVertex() == 0) {
1594 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1595 POn2S.Parameters(pu1,pv1,pu2,pv2);
1596 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1597 vtx.SetParameters(pu1,pv1,pu2,pv2);
1598 vtx.SetParameter(1);
1599 wline->AddVertex(vtx);
1601 POn2S = PW.Line()->Value(wline->NbPnts());
1602 POn2S.Parameters(pu1,pv1,pu2,pv2);
1603 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1604 vtx.SetParameters(pu1,pv1,pu2,pv2);
1605 vtx.SetParameter(wline->NbPnts());
1606 wline->AddVertex(vtx);
1609 Standard_Integer slinlen = SLin.Length();
1611 Standard_Integer cnbV = wline->NbVertex();
1612 Standard_Integer ciV;
1613 for( ciV = 1; ciV <= cnbV; ciV++ ) {
1614 Standard_Real pntDMin = 1.e+100;
1615 Standard_Integer VDMin = 0;
1616 Standard_Integer WLDMin = 0;
1617 gp_Pnt cPV = wline->Vertex(ciV).Value();
1618 Standard_Integer iL;
1619 for( iL = 1; iL <= slinlen; iL++) {
1620 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
1621 IntPatch_IType aType = aSLine->ArcType();
1622 if( aType != IntPatch_Walking)
1624 Handle(IntPatch_WLine) aWLine (Handle(IntPatch_WLine)::DownCast (aSLine));
1625 Standard_Integer tnbV = aWLine->NbVertex();
1626 Standard_Integer tiV;
1627 for( tiV = 1; tiV <= tnbV; tiV++ ) {
1628 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
1629 Standard_Real tDistance = cPV.Distance(tPV);
1630 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
1631 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
1632 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
1633 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
1634 Standard_Real RmaxS1 = Max(uRs1,vRs1);
1635 Standard_Real RmaxS2 = Max(uRs2,vRs2);
1636 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4) {
1637 if( pntDMin > tDistance && tDistance > 1.e-9) {
1638 pntDMin = tDistance;
1647 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
1648 Handle(IntPatch_WLine) aWLine (Handle(IntPatch_WLine)::DownCast (aSLine));
1649 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
1650 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
1651 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
1652 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
1653 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
1654 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
1656 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
1657 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
1658 Standard_Integer cNbP = wline->NbPnts();
1660 TColStd_SequenceOfInteger VPold;
1661 Standard_Integer iPo;
1662 for( iPo = 1; iPo <= cnbV; iPo++ ) {
1663 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
1664 Standard_Integer IPo = (Standard_Integer) Po;
1668 Standard_Boolean removeNext = Standard_False;
1669 Standard_Boolean removePrev = Standard_False;
1671 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
1673 removeNext = Standard_True;
1674 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1675 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1678 else if( ciV == cnbV) {
1679 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
1681 removePrev = Standard_True;
1682 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
1686 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
1687 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
1689 removePrev = Standard_True;
1690 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
1693 removeNext = Standard_True;
1694 for( iPo = (ciV+1); iPo <= cnbV; iPo++ ) {
1696 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
1698 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1703 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1704 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1707 Standard_Integer pI = (Standard_Integer) ciVpar;
1709 Standard_Integer iP;
1710 for( iP = 1; iP <= cNbP; iP++) {
1713 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
1714 newL2s->Add(newPnt);
1716 else if(removeNext && iP == (pI + 1))
1718 else if(removePrev && iP == (pI - 1))
1721 newL2s->Add(wline->Point(iP));
1724 IntPatch_Point newVtx;
1725 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
1726 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
1727 newVtx.SetParameters(u21,v21,u22,v22);
1728 newVtx.SetParameter(VPold.Value(ciV));
1730 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
1732 Standard_Integer iV;
1733 for( iV = 1; iV <= cnbV; iV++ ) {
1735 NWLine->AddVertex(newVtx);
1737 IntPatch_Point theVtx = wline->Vertex(iV);
1738 theVtx.SetParameter(VPold.Value(iV));
1739 NWLine->AddVertex(theVtx);
1748 AddWLine(SLin, wline, Deflection);
1749 empt = Standard_False;
1753 }// dminiPointLigne > SeuildPointLigne
1755 }// for( IterLOP ...
1756 done = Standard_True;
1759 //=======================================================================
1760 //function : Perform
1762 //=======================================================================
1763 void IntPatch_PrmPrmIntersection::Perform(const Handle(Adaptor3d_HSurface)& Surf1,
1764 const Handle(Adaptor3d_TopolTool)& D1,
1765 const Handle(Adaptor3d_HSurface)& Surf2,
1766 const Handle(Adaptor3d_TopolTool)& D2,
1767 const Standard_Real U1Depart,
1768 const Standard_Real V1Depart,
1769 const Standard_Real U2Depart,
1770 const Standard_Real V2Depart,
1771 const Standard_Real TolTangency,
1772 const Standard_Real Epsilon,
1773 const Standard_Real Deflection,
1774 const Standard_Real Increment)
1776 // Standard_Integer NbU1 = D1->NbSamplesU();
1777 // Standard_Integer NbV1 = D1->NbSamplesV();
1778 // Standard_Integer NbU2 = D2->NbSamplesU();
1779 // Standard_Integer NbV2 = D2->NbSamplesV();
1781 //-- Traitement des Lignes de sections
1782 empt = Standard_True;
1783 done = Standard_True;
1786 //------------------------------------------------------------
1788 Standard_Real pu1,pu2,pv1,pv2;
1790 TColStd_Array1OfReal StartParams(1,4);
1792 // Standard_Integer MaxOscill = NbU1;
1793 // if(MaxOscill < NbU2) MaxOscill=NbU2;
1794 // if(MaxOscill < NbV1) MaxOscill=NbV1;
1795 // if(MaxOscill < NbV2) MaxOscill=NbV2;
1797 // Standard_Real nIncrement=Increment;
1798 // if(MaxOscill>10) {
1799 // #ifdef OCCT_DEBUG
1800 // cout<<"\n IntPatch_PrmPrmIntersection.gxx : Increment:"<<Increment<<" -> "<<Increment/(0.5*MaxOscill)<<endl;
1802 // nIncrement/=0.5*MaxOscill;
1805 IntWalk_PWalking PW(Surf1,Surf2,
1809 Increment); //nIncrement);
1812 //Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
1813 //Standard_Real incidence;
1814 //Standard_Real dminiPointLigne;
1816 Standard_Boolean HasStartPoint;//,RejetLigne;
1818 IntSurf_PntOn2S StartPOn2S;
1820 //Standard_Integer ver;
1822 gp_Pnt Point3dDebut,Point3dFin;
1824 //------------------------------------------------------------
1826 StartParams(1) = U1Depart;
1827 StartParams(2) = V1Depart;
1828 StartParams(3) = U2Depart;
1829 StartParams(4) = V2Depart;
1831 //-----------------------------------------------------------------------
1832 //-- Calcul du premier point de cheminement a partir du point approche --
1833 //-----------------------------------------------------------------------
1834 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1836 //-------------------------------------------------
1837 //-- Un point a ete trouve --
1838 //-- On verifie qu il n appartient pas --
1839 //-- a une ligne de cheminement deja calculee. --
1840 //-------------------------------------------------
1842 PW.Perform(StartParams);
1845 Point3dDebut = PW.Value(1).Value();
1846 Point3dFin = PW.Value(PW.NbPoints()).Value();
1848 IntSurf_TypeTrans trans1,trans2;
1849 Standard_Real locu,locv;
1850 gp_Vec norm1,norm2,d1u,d1v;
1852 Standard_Integer indextg;
1853 gp_Vec tgline(PW.TangentAtLine(indextg));
1854 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1855 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1856 norm1 = d1u.Crossed(d1v);
1857 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1858 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1859 norm2 = d1u.Crossed(d1v);
1860 if (tgline.DotCross(norm2,norm1)>0.) {
1861 trans1 = IntSurf_Out;
1862 trans2 = IntSurf_In;
1865 trans1 = IntSurf_In;
1866 trans2 = IntSurf_Out;
1871 Standard_Real TolTang = TolTangency;
1872 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1873 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
1874 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
1877 if(wline->NbVertex() == 0) {
1879 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1880 POn2S.Parameters(pu1,pv1,pu2,pv2);
1881 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1882 vtx.SetParameters(pu1,pv1,pu2,pv2);
1883 vtx.SetParameter(1);
1884 wline->AddVertex(vtx);
1886 POn2S = PW.Line()->Value(wline->NbPnts());
1887 POn2S.Parameters(pu1,pv1,pu2,pv2);
1888 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1889 vtx.SetParameters(pu1,pv1,pu2,pv2);
1890 vtx.SetParameter(wline->NbPnts());
1891 wline->AddVertex(vtx);
1896 empt = Standard_False;
1901 //==================================================================================
1902 // function : AdjustOnPeriodic
1904 //==================================================================================
1905 void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
1906 const Handle(Adaptor3d_HSurface)& Surf2,
1907 IntPatch_SequenceOfLine& aSLin)
1909 Standard_Boolean bIsPeriodic[4], bModified, bIsNull, bIsPeriod;
1910 Standard_Integer i, j, k, aNbLines, aNbPx, aIndx, aIndq;
1911 Standard_Real aPeriod[4], dPeriod[4], ux[4], uq[4], aEps, du;
1913 aEps=Precision::Confusion();
1915 for (k=0; k<4; ++k) {
1919 bIsPeriodic[0]=Surf1->IsUPeriodic();
1920 bIsPeriodic[1]=Surf1->IsVPeriodic();
1921 bIsPeriodic[2]=Surf2->IsUPeriodic();
1922 bIsPeriodic[3]=Surf2->IsVPeriodic();
1924 if (bIsPeriodic[0]){
1925 aPeriod[0]=Surf1->UPeriod();
1927 if (bIsPeriodic[1]){
1928 aPeriod[1]=Surf1->VPeriod();
1930 if (bIsPeriodic[2]){
1931 aPeriod[2]=Surf2->UPeriod();
1933 if (bIsPeriodic[3]){
1934 aPeriod[3]=Surf2->VPeriod();
1937 for (k=0; k<4; ++k) {
1938 dPeriod[k]=0.25*aPeriod[k];
1941 aNbLines=aSLin.Length();
1942 for (i=1; i<=aNbLines; ++i) {
1943 Handle(IntPatch_WLine) aIL=Handle(IntPatch_WLine)::DownCast(aSLin.Value(i));
1944 Handle(IntSurf_LineOn2S) aL=aIL->Curve();
1946 aNbPx=aL->NbPoints();
1951 for (j=0; j<2; ++j) {
1952 bModified=Standard_False;
1960 const IntSurf_PntOn2S& aPSx=aL->Value(aIndx);
1961 const IntSurf_PntOn2S& aPSq=aL->Value(aIndq);
1963 aPSx.Parameters(ux[0], ux[1], ux[2], ux[3]);
1964 aPSq.Parameters(uq[0], uq[1], uq[2], uq[3]);
1966 for (k=0; k<4; ++k) {
1967 bIsNull=Standard_False;
1968 bIsPeriod=Standard_False;
1970 if (!bIsPeriodic[k]) {
1974 if (fabs(ux[k])<aEps) {
1975 bModified=Standard_True;
1976 bIsNull=Standard_True;
1979 else if (fabs(ux[k]-aPeriod[k])<aEps) {
1980 bModified=Standard_True;
1981 bIsPeriod=Standard_True;
1985 du=fabs(ux[k]-uq[k]);
1986 if (du > dPeriod[k]) {
1995 }//for (k=0; k<4; ++k)
1997 IntSurf_PntOn2S aPntOn2S;
2000 aPntOn2S.SetValue(ux[0], ux[1], ux[2], ux[3]);
2001 aL->Value(aIndx, aPntOn2S);
2003 }//for (j=0; j<1; ++j) {
2004 }//for (i=1; i<=aNbLines; ++i)
2007 //==================================================================================
2008 // function : MakeNewPoint
2010 //==================================================================================
2011 IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
2012 const IntSurf_PntOn2S& oldPnt,
2013 const Standard_Real* Periods)
2015 IntSurf_PntOn2S NewPoint;
2016 NewPoint.SetValue(replacePnt.Value());
2018 Standard_Real OldParams[4], NewParams[4];
2019 oldPnt.Parameters(OldParams[0], OldParams[1], OldParams[2], OldParams[3]);
2020 replacePnt.Parameters(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
2023 for (i = 0; i < 4; i++)
2024 if (Periods[i] != 0.)
2026 if (Abs(NewParams[i] - OldParams[i]) >= 0.5*Periods[i])
2028 if (NewParams[i] < OldParams[i])
2029 NewParams[i] += Periods[i];
2031 NewParams[i] -= Periods[i];
2035 NewPoint.SetValue(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
2039 //==================================================================================
2040 // function : Perform
2041 // purpose : base SS Int. function
2042 //==================================================================================
2043 void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
2044 const Handle(Adaptor3d_TopolTool)& D1,
2045 const Handle(Adaptor3d_HSurface)& Surf2,
2046 const Handle(Adaptor3d_TopolTool)& D2,
2047 const Standard_Real TolTangency,
2048 const Standard_Real Epsilon,
2049 const Standard_Real Deflection,
2050 const Standard_Real Increment,
2051 const Standard_Boolean ClearFlag)
2053 Standard_Integer Limit = 2500;
2054 Standard_Integer NbU1 = 10, NbV1 = 10, NbU2 = 10, NbV2 = 10;
2056 D1->SamplePnts(Deflection, NbU1, NbV1);
2057 D2->SamplePnts(Deflection, NbU2, NbV2);
2059 NbU1 = D1->NbSamplesU();
2060 NbV1 = D1->NbSamplesV();
2061 NbU2 = D2->NbSamplesU();
2062 NbV2 = D2->NbSamplesV();
2064 TColStd_Array1OfReal anUpars1(1, NbU1), aVpars1(1, NbV1);
2065 TColStd_Array1OfReal anUpars2(1, NbU2), aVpars2(1, NbV2);
2067 D1->UParameters(anUpars1);
2068 D1->VParameters(aVpars1);
2069 D2->UParameters(anUpars2);
2070 D2->VParameters(aVpars2);
2072 Standard_Real Periods [4];
2073 Periods[0] = (Surf1->IsUPeriodic())? Surf1->UPeriod() : 0.;
2074 Periods[1] = (Surf1->IsVPeriodic())? Surf1->VPeriod() : 0.;
2075 Periods[2] = (Surf2->IsUPeriodic())? Surf2->UPeriod() : 0.;
2076 Periods[3] = (Surf2->IsVPeriodic())? Surf2->VPeriod() : 0.;
2078 //---------------------------------------------
2079 if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit))
2081 empt = Standard_True;
2087 IntPolyh_Intersection* pInterference = NULL;
2089 if ( D1->IsUniformSampling() || D2->IsUniformSampling() )
2091 pInterference = new IntPolyh_Intersection(Surf1,NbU1,NbV1,Surf2,NbU2,NbV2);
2095 pInterference = new IntPolyh_Intersection(Surf1, anUpars1, aVpars1,
2096 Surf2, anUpars2, aVpars2 );
2099 if ( !pInterference )
2101 done = Standard_False;
2105 IntPolyh_Intersection& Interference = *pInterference;
2107 done = Interference.IsDone();
2112 delete pInterference;
2113 pInterference = NULL;
2119 Standard_Integer nbLigSec = Interference.NbSectionLines();
2120 Standard_Integer nbTanZon = Interference.NbTangentZones();
2121 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
2123 Standard_Integer NbLigCalculee = 0, ver;
2124 Standard_Real pu1,pu2,pv1,pv2, incidence, dminiPointLigne;
2125 Standard_Boolean HasStartPoint = Standard_False, RejectLine = Standard_False;
2126 IntSurf_PntOn2S StartPOn2S;
2127 gp_Pnt Point3dDebut,Point3dFin;
2129 TColStd_Array1OfReal StartParams(1,4);
2130 IntWalk_PWalking PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
2134 Standard_Integer *TabL = new Standard_Integer [nbLigSec+1];
2135 for(Standard_Integer ls=1; ls<=nbLigSec; ++ls)
2139 //----------------------------------------1.1
2141 Standard_Boolean triok;
2142 Standard_Integer nb_A, nb_B, tyu;
2145 triok=Standard_True;
2146 for(Standard_Integer b = 2; b <= nbLigSec; ++b )
2148 nb_B = Interference.NbPointsInLine(TabL[b]);
2149 nb_A = Interference.NbPointsInLine(TabL[b-1]);
2156 triok=Standard_False;
2160 while(triok==Standard_False);
2163 //----------------------------------------
2164 // 1.2 For the line "ls" get 2D-bounds U,V for surfaces 1,2
2166 for(Standard_Integer ls = 1; ls <= nbLigSec; ++ls)
2168 Standard_Integer nbp = Interference.NbPointsInLine(TabL[ls]);
2174 Standard_Integer *TabPtDep = new Standard_Integer [nbp+1];
2175 for(Standard_Integer ilig = 1; ilig <= nbp; ++ilig )
2180 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2181 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
2182 Standard_Real _x,_y,_z;
2184 Interference.GetLinePoint(TabL[ls], 1, _x, _y, _z,
2185 UminLig1, VminLig1, UminLig2, VminLig2,
2193 for(Standard_Integer ilig = 2; ilig <= nbp; ilig++ )
2195 Standard_Real U1, U2, V1, V2;
2196 Interference.GetLinePoint(TabL[ls],ilig,_x,_y,_z,U1,V1,U2,V2,incidence);
2198 if(U1>UmaxLig1) UmaxLig1=U1;
2199 if(V1>VmaxLig1) VmaxLig1=V1;
2200 if(U2>UmaxLig2) UmaxLig2=U2;
2201 if(V2>VmaxLig2) VmaxLig2=V2;
2203 if(U1<UminLig1) UminLig1=U1;
2204 if(V1<VminLig1) VminLig1=V1;
2205 if(U2<UminLig2) UminLig2=U2;
2206 if(V2<VminLig2) VminLig2=V2;
2207 }//for( ilig = 2; ilig <= nbp; ilig++ ) {
2209 //----------------------------------------
2211 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
2212 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
2213 Standard_Boolean lignetrouvee=Standard_False;
2214 const Standard_Integer NbDePointsDeDepartDuChmLimit = 5;
2218 NombreDePointsDeDepartDuCheminement++;
2219 switch (NombreDePointsDeDepartDuCheminement)
2222 nbps2 = (nbp > 1) ? nbp/2 : 1;
2224 NombreDePointsDeDepartDuCheminement = NbDePointsDeDepartDuChmLimit;
2235 nbps2 = 3 * nbp / 4;
2242 nbps2 = NombreDePointsDeDepartDuCheminement-3;
2243 NombreDePointsDeDepartDuCheminement++;
2247 if(TabPtDep[nbps2] == 0)
2249 Standard_Real U1, U2, V1, V2;
2251 TabPtDep[nbps2] = 1;
2252 Interference.GetLinePoint(TabL[ls],nbps2,_x,_y,_z,U1,V1,U2,V2,incidence);
2254 StartParams(1) = U1;
2255 StartParams(2) = V1;
2256 StartParams(3) = U2;
2257 StartParams(4) = V2;
2259 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2260 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2263 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2264 NbLigCalculee = SLin.Length();
2266 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++)
2268 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2270 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2272 dminiPointLigne = 0.0;
2276 if(dminiPointLigne > SeuildPointLigne)
2278 PW.Perform(StartParams, UminLig1, VminLig1, UminLig2, VminLig2,
2279 UmaxLig1, VmaxLig1, UmaxLig2, VmaxLig2);
2282 Standard_Boolean bPWIsDone;
2283 Standard_Integer iPWNbPoints, aNbPointsVer;
2284 Standard_Real aD11, aD12, aD21, aD22, aDx;
2286 bPWIsDone=PW.IsDone();
2290 iPWNbPoints=PW.NbPoints();
2292 if( iPWNbPoints > 2 )
2294 //Try to extend the intersection line to boundary, if it is possibly
2295 Standard_Boolean hasBeenAdded = PW.PutToBoundary(Surf1, Surf2);
2297 const Standard_Integer aMinNbPoints = 40;
2298 if(iPWNbPoints < aMinNbPoints)
2301 PW.SeekAdditionalPoints(Surf1, Surf2, aMinNbPoints) || hasBeenAdded;
2302 iPWNbPoints = PW.NbPoints();
2305 RejectLine = Standard_False;
2306 Point3dDebut = PW.Value(1).Value();
2307 Point3dFin = PW.Value(iPWNbPoints).Value();
2308 for( ver = 1; (!RejectLine) && (ver<= NbLigCalculee); ++ver)
2310 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2312 aNbPointsVer=verwline->NbPnts();
2318 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2319 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2321 const gp_Pnt& aP21=verPointDebut.Value();
2322 const gp_Pnt& aP22=verPointFin.Value();
2324 aD11=Point3dDebut.Distance(aP21);
2325 aD12=Point3dDebut.Distance(aP22);
2326 aD21=Point3dFin.Distance(aP21);
2327 aD22=Point3dFin.Distance(aP22);
2329 if((aD11<=TolTangency && aD22<=TolTangency) ||
2330 (aD12<=TolTangency && aD21<=TolTangency))
2332 Standard_Integer m, mx;
2340 const gp_Pnt& aPx=verwline->Point(mx).Value();
2341 for(m=1; m<iPWNbPoints; ++m)
2343 const gp_Pnt& aP1=PW.Value(m).Value();
2344 const gp_Pnt& aP2=PW.Value(m+1).Value();
2345 gp_Vec aVec12(aP1, aP2);
2346 if (aVec12.SquareMagnitude()<1.e-20)
2352 gp_Dir aDir12(aVec12);
2353 gp_Lin aLin12(aP1, aDir12);
2354 aDx=aLin12.Distance(aPx);
2356 //modified by NIZNHY-PKV Tue May 10 11:08:07 2011f
2357 if (aDx<=2.*Epsilon)
2359 //if (aDx<=TolTangency) {
2360 //modified by NIZNHY-PKV Tue May 10 11:08:13 2011t
2362 RejectLine = Standard_True;
2366 }//for(m=1; m<iPWNbPoints; ++m){
2367 }//if((aD11<=TolTangency && aD22<=TolTangency) ||...
2368 }// for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
2373 DublicateOfLinesProcessing(PW, ver, SLin, RejectLine);
2378 IntSurf_TypeTrans trans1,trans2;
2379 Standard_Real locu,locv;
2380 gp_Vec norm1,norm2,d1u,d1v;
2382 Standard_Integer indextg;
2383 gp_Vec tgline(PW.TangentAtLine(indextg));
2384 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2385 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2386 norm1 = d1u.Crossed(d1v);
2387 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2388 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2389 norm2 = d1u.Crossed(d1v);
2390 if( tgline.DotCross(norm2,norm1) >= 0. )
2392 trans1 = IntSurf_Out;
2393 trans2 = IntSurf_In;
2397 trans1 = IntSurf_In;
2398 trans2 = IntSurf_Out;
2401 Standard_Real TolTang = TolTangency;
2402 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2403 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang,hasBeenAdded);
2404 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang,hasBeenAdded);
2406 if(wline->NbVertex() == 0)
2409 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2410 POn2S.Parameters(pu1,pv1,pu2,pv2);
2411 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2412 vtx.SetParameters(pu1,pv1,pu2,pv2);
2413 vtx.SetParameter(1);
2414 wline->AddVertex(vtx);
2416 POn2S = PW.Line()->Value(wline->NbPnts());
2417 POn2S.Parameters(pu1,pv1,pu2,pv2);
2418 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2419 vtx.SetParameters(pu1,pv1,pu2,pv2);
2420 vtx.SetParameter(wline->NbPnts());
2421 wline->AddVertex(vtx);
2424 lignetrouvee = Standard_True;
2426 Standard_Integer slinlen = SLin.Length();
2429 Standard_Integer cnbV = wline->NbVertex();
2430 Standard_Integer ciV;
2431 for( ciV = 1; ciV <= cnbV; ciV++ )
2433 Standard_Real pntDMin = 1.e+100;
2434 Standard_Integer VDMin = 0;
2435 Standard_Integer WLDMin = 0;
2436 gp_Pnt cPV = wline->Vertex(ciV).Value();
2437 Standard_Integer iL;
2438 for( iL = 1; iL <= slinlen; iL++)
2440 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
2441 IntPatch_IType aType = aSLine->ArcType();
2442 if( aType != IntPatch_Walking)
2444 Handle(IntPatch_WLine) aWLine (Handle(IntPatch_WLine)::DownCast (aSLine));
2445 Standard_Integer tnbV = aWLine->NbVertex();
2446 Standard_Integer tiV;
2447 for( tiV = 1; tiV <= tnbV; tiV++ )
2449 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
2450 Standard_Real tDistance = cPV.Distance(tPV);
2451 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
2452 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
2453 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
2454 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
2455 Standard_Real RmaxS1 = Max(uRs1,vRs1);
2456 Standard_Real RmaxS2 = Max(uRs2,vRs2);
2457 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4)
2459 if( pntDMin > tDistance && tDistance > 1.e-9)
2461 pntDMin = tDistance;
2471 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
2472 Handle(IntPatch_WLine) aWLine (Handle(IntPatch_WLine)::DownCast (aSLine));
2473 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
2474 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
2475 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
2476 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
2477 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
2478 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
2480 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
2481 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
2482 Standard_Integer cNbP = wline->NbPnts();
2484 TColStd_SequenceOfInteger VPold;
2485 Standard_Integer iPo;
2486 for( iPo = 1; iPo <= cnbV; iPo++ )
2488 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
2489 Standard_Integer IPo = (Standard_Integer) Po;
2493 Standard_Boolean removeNext = Standard_False;
2494 Standard_Boolean removePrev = Standard_False;
2497 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2500 removeNext = Standard_True;
2501 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2502 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2505 else if( ciV == cnbV)
2507 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2510 removePrev = Standard_True;
2511 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2516 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2517 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2520 removePrev = Standard_True;
2521 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2526 removeNext = Standard_True;
2527 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2530 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
2532 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2538 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2539 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2543 Standard_Integer pI = ciVpar;
2545 Standard_Integer iP;
2546 for( iP = 1; iP <= cNbP; iP++)
2550 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
2551 newL2s->Add(newPnt);
2553 else if(removeNext && iP == (pI + 1))
2555 else if(removePrev && iP == (pI - 1))
2558 newL2s->Add(wline->Point(iP));
2561 IntPatch_Point newVtx;
2562 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
2563 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
2564 newVtx.SetParameters(u21,v21,u22,v22);
2565 newVtx.SetParameter(VPold.Value(ciV));
2567 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
2569 Standard_Integer iV;
2570 for( iV = 1; iV <= cnbV; iV++ )
2573 NWLine->AddVertex(newVtx);
2576 IntPatch_Point theVtx = wline->Vertex(iV);
2577 theVtx.SetParameter(VPold.Value(iV));
2578 NWLine->AddVertex(theVtx);
2584 }//for( ciV = 1; ciV <= cnbV; ciV++ )
2587 AddWLine(SLin, wline, Deflection);
2588 empt = Standard_False;
2592 }// dminiPointLigne > SeuildPointLigne
2594 }// if TabPtDep[nbps2] == 0
2595 } while(nbp>5 && !( (NombreDePointsDeDepartDuCheminement >= NbDePointsDeDepartDuChmLimit && lignetrouvee) ||
2596 (NombreDePointsDeDepartDuCheminement-3 >= nbp && (!lignetrouvee))));
2602 }// if nbLigSec >= 1
2604 AdjustOnPeriodic(Surf1, Surf2, SLin);
2607 //--------------------------------------------------------------------
2608 //-- Calcul des parametres approches a partir des Zones De Tangence --
2609 //--------------------------------------------------------------------
2610 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2611 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
2613 UminLig1=VminLig1=UminLig2=VminLig2=RealLast();
2614 UmaxLig1=VmaxLig1=UmaxLig2=VmaxLig2=-UminLig1;
2616 // NbPointsInTangentZone always == 1 (eap)
2619 for( z=1; z <= nbTanZon; z++)
2621 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2622 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
2623 Standard_Integer pz=1;
2624 Standard_Real _x,_y,_z;
2625 Standard_Real U1, U2, V1, V2;
2626 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2628 if(U1>UmaxLig1) UmaxLig1=U1;
2629 if(V1>VmaxLig1) VmaxLig1=V1;
2630 if(U2>UmaxLig2) UmaxLig2=U2;
2631 if(V2>VmaxLig2) VmaxLig2=V2;
2633 if(U1<UminLig1) UminLig1=U1;
2634 if(V1<VminLig1) VminLig1=V1;
2635 if(U2<UminLig2) UminLig2=U2;
2636 if(V2<VminLig2) VminLig2=V2;
2640 for(z=1; z <= nbTanZon; z++)
2642 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2643 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
2644 Standard_Integer pz=1;
2645 Standard_Real _x,_y,_z;
2646 Standard_Real U1, U2, V1, V2;
2647 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2649 StartParams(1) = U1;
2650 StartParams(2) = V1;
2651 StartParams(3) = U2;
2652 StartParams(4) = V2;
2654 //-----------------------------------------------------------------------
2655 //-- Calcul du premier point de cheminement a partir du point approche --
2656 //-----------------------------------------------------------------------
2657 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2660 //-------------------------------------------------
2661 //-- Un point a ete trouve --
2662 //-- On verifie qu il n appartient pas --
2663 //-- a une ligne de cheminement deja calculee. --
2664 //-------------------------------------------------
2665 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2667 NbLigCalculee = SLin.Length();
2668 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2670 for(Standard_Integer l=1;
2671 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2674 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2676 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2678 dminiPointLigne = 0.0;
2682 //-- Fin d exploration des lignes
2683 if(dminiPointLigne > SeuildPointLigne)
2685 //---------------------------------------------------
2686 //-- Le point de depart du nouveau cheminement --
2687 //-- n est present dans aucune ligne deja calculee.--
2688 //---------------------------------------------------
2689 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,
2690 UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
2696 const Standard_Integer aMinNbPoints = 40;
2697 if(PW.NbPoints() < aMinNbPoints)
2699 PW.SeekAdditionalPoints(Surf1, Surf2, aMinNbPoints);
2702 //-----------------------------------------------
2703 //-- Verification a posteriori :
2704 //-- On teste si le point de depart et de fin de
2705 //-- la ligne de cheminement est present dans une
2707 //-----------------------------------------------
2708 RejectLine = Standard_False;
2709 Point3dDebut = PW.Value(1).Value();
2710 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2711 Point3dFin = PointFin.Value();
2713 for(ver=1 ; (!RejectLine) && (ver<= NbLigCalculee) ; ver++)
2715 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2716 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
2718 // Check end point if it is on existing line.
2719 // Start point is checked before.
2720 if (IsPointOnLine(PointFin, verwline, Deflection))
2722 RejectLine = Standard_True;
2726 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2727 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2728 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
2730 RejectLine = Standard_True;
2734 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
2736 RejectLine = Standard_True;
2743 IntSurf_TypeTrans trans1,trans2;
2744 Standard_Real locu,locv;
2745 gp_Vec norm1,norm2,d1u,d1v;
2747 Standard_Integer indextg;
2748 gp_Vec tgline(PW.TangentAtLine(indextg));
2749 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2750 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2751 norm1 = d1u.Crossed(d1v);
2752 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2753 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2754 norm2 = d1u.Crossed(d1v);
2755 if (tgline.DotCross(norm2,norm1)>0.)
2757 trans1 = IntSurf_Out;
2758 trans2 = IntSurf_In;
2762 trans1 = IntSurf_In;
2763 trans2 = IntSurf_Out;
2766 Standard_Real TolTang = TolTangency;
2767 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2768 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2769 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2772 if(wline->NbVertex() == 0)
2775 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2776 POn2S.Parameters(pu1,pv1,pu2,pv2);
2777 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2778 vtx.SetParameters(pu1,pv1,pu2,pv2);
2779 vtx.SetParameter(1);
2780 wline->AddVertex(vtx);
2782 POn2S = PW.Line()->Value(wline->NbPnts());
2783 POn2S.Parameters(pu1,pv1,pu2,pv2);
2784 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2785 vtx.SetParameters(pu1,pv1,pu2,pv2);
2786 vtx.SetParameter(wline->NbPnts());
2787 wline->AddVertex(vtx);
2791 AddWLine(SLin, wline, Deflection);
2792 empt = Standard_False;
2796 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2798 //------------------------------------------------------------
2800 } //-- le cheminement a reussi (done a True)
2801 } //-- le point approche ne renvoie pas sur une ligne existante
2802 } //-- Si HasStartPoint
2803 //} //-- Boucle Sur les Points de la Tangent Zone
2804 } //-- Boucle sur Les Tangent Zones
2806 if ( pInterference )
2808 delete pInterference;
2809 pInterference = NULL;
2813 }// if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit)) {
2815 Handle(IntSurf_LineOn2S) LOn2S = new IntSurf_LineOn2S();
2816 PointDepart( LOn2S, Surf1, NbU1, NbV1, Surf2, NbU2, NbV2 );
2817 empt = Standard_True;
2818 done = Standard_True;
2821 Standard_Integer NbLigCalculee = 0;
2822 Standard_Real U1,U2,V1,V2;
2823 Standard_Real pu1,pu2,pv1,pv2;
2825 TColStd_Array1OfReal StartParams(1,4);
2826 Standard_Integer MaxOscill = NbU1;
2827 if(MaxOscill < NbU2) MaxOscill=NbU2;
2828 if(MaxOscill < NbV1) MaxOscill=NbV1;
2829 if(MaxOscill < NbV2) MaxOscill=NbV2;
2831 Standard_Real nIncrement=Increment;
2833 //nIncrement/=0.5*MaxOscill;
2835 IntWalk_PWalking PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,nIncrement);
2836 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
2837 Standard_Real dminiPointLigne;
2838 Standard_Boolean HasStartPoint,RejetLigne;
2839 IntSurf_PntOn2S StartPOn2S;
2840 Standard_Integer ver;
2841 gp_Pnt Point3dDebut,Point3dFin;
2843 //------------------------------------------------------------
2844 //-- Calcul des parametres approches a partir des Zones De Tangence --
2845 //--------------------------------------------------------------------
2846 Standard_Integer nbTanZon = LOn2S->NbPoints();
2847 for(Standard_Integer z=1; z <= nbTanZon; z++) {
2848 const IntSurf_PntOn2S& POn2S = LOn2S->Value(z);
2849 POn2S.Parameters(U1,V1,U2,V2);
2850 StartParams(1) = U1;
2851 StartParams(2) = V1;
2852 StartParams(3) = U2;
2853 StartParams(4) = V2;
2855 //-----------------------------------------------------------------------
2856 //-- Calcul du premier point de cheminement a partir du point approche --
2857 //-----------------------------------------------------------------------
2858 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2861 //-------------------------------------------------
2862 //-- Un point a ete trouve --
2863 //-- On verifie qu il n appartient pas --
2864 //-- a une ligne de cheminement deja calculee. --
2865 //-------------------------------------------------
2866 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2868 NbLigCalculee = SLin.Length();
2869 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2871 for(Standard_Integer l=1;
2872 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2875 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2877 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2879 dminiPointLigne = 0.0;
2883 //-- Fin d exploration des lignes
2884 if(dminiPointLigne > SeuildPointLigne)
2886 //---------------------------------------------------
2887 //-- Le point de depart du nouveau cheminement --
2888 //-- n est present dans aucune ligne deja calculee.--
2889 //---------------------------------------------------
2890 PW.Perform(StartParams);
2895 //-----------------------------------------------
2896 //-- Verification a posteriori :
2897 //-- On teste si le point de depart et de fin de
2898 //-- la ligne de cheminement est present dans une
2900 //-----------------------------------------------
2901 RejetLigne = Standard_False;
2902 Point3dDebut = PW.Value(1).Value();
2903 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2904 Point3dFin = PointFin.Value();
2906 for(ver=1 ; ver<= NbLigCalculee ; ver++)
2908 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2909 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
2911 // Check end point if it is on existing line.
2912 // Start point is checked before.
2913 if (IsPointOnLine(PointFin, verwline, Deflection))
2915 RejetLigne = Standard_True;
2919 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2920 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2921 if( (Point3dDebut.Distance(verPointDebut.Value()) < TolTangency) ||
2922 (Point3dFin.Distance(verPointFin.Value()) < TolTangency))
2924 RejetLigne = Standard_True;
2931 DublicateOfLinesProcessing(PW, ver, SLin, RejetLigne);
2936 IntSurf_TypeTrans trans1,trans2;
2937 Standard_Real locu,locv;
2938 gp_Vec norm1,norm2,d1u,d1v;
2940 Standard_Integer indextg;
2941 gp_Vec tgline(PW.TangentAtLine(indextg));
2942 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2943 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2944 norm1 = d1u.Crossed(d1v);
2945 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2946 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2947 norm2 = d1u.Crossed(d1v);
2948 if (tgline.DotCross(norm2,norm1)>0.)
2950 trans1 = IntSurf_Out;
2951 trans2 = IntSurf_In;
2954 trans1 = IntSurf_In;
2955 trans2 = IntSurf_Out;
2958 Standard_Real TolTang = TolTangency;
2959 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2960 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2961 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2964 if(wline->NbVertex() == 0)
2967 const IntSurf_PntOn2S& POn2Sf = PW.Line()->Value(1);
2968 POn2Sf.Parameters(pu1,pv1,pu2,pv2);
2969 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2970 vtx.SetParameters(pu1,pv1,pu2,pv2);
2971 vtx.SetParameter(1);
2972 wline->AddVertex(vtx);
2974 const IntSurf_PntOn2S& POn2Sl = PW.Line()->Value(wline->NbPnts());
2975 POn2Sl.Parameters(pu1,pv1,pu2,pv2);
2976 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2977 vtx.SetParameters(pu1,pv1,pu2,pv2);
2978 vtx.SetParameter(wline->NbPnts());
2979 wline->AddVertex(vtx);
2983 AddWLine(SLin, wline, Deflection);
2984 empt = Standard_False;
2988 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2990 //------------------------------------------------------------
2992 } //-- le cheminement a reussi (done a True)
2993 } //-- le point approche ne renvoie pas sur une ligne existante
2994 } //-- Si HasStartPoint
2995 } //-- Boucle sur Les Tangent Zones
2997 //modified by NIZNHY-PKV Wed May 25 09:39:07 2011f
2998 //=======================================================================
2999 //class : IntPatch_InfoPD
3001 //=======================================================================
3002 class IntPatch_InfoPD {
3004 //----------------------------------------C-tor
3005 IntPatch_InfoPD(const Standard_Integer aNBI) {
3006 Standard_Integer aNBI2, i, j;
3010 myP1DS2=new char[aNBI2];
3011 myP2DS1=new char[aNBI2];
3012 myIP1=new Standard_Integer[aNBI2];
3013 myIP2=new Standard_Integer[aNBI2];
3014 myP1=new gp_Pnt[aNBI2];
3015 myP2=new gp_Pnt[aNBI2];
3017 for (i=0; i<myNBI; ++i) {
3018 for (j=0; j<myNBI; ++j) {
3023 xP1(i, j).SetCoord(0., 0., 0.);
3024 xP2(i, j).SetCoord(0., 0., 0.);
3028 //---------------------------------------- D-tor
3029 ~IntPatch_InfoPD() {
3030 delete [] (char*) myP1DS2;
3031 delete [] (char*) myP2DS1;
3032 delete [] (Standard_Integer*) myIP1;
3033 delete [] (Standard_Integer*) myIP2;
3034 delete [] (gp_Pnt*)myP1;
3035 delete [] (gp_Pnt*)myP2;
3037 //---------------------------------------- Index
3038 Standard_Integer Index(const Standard_Integer i,
3039 const Standard_Integer j) const {
3042 //---------------------------------------- NBI
3043 Standard_Integer NBI() const {
3046 //----------------------------------------xP1DS2
3047 char& xP1DS2(const Standard_Integer i,
3048 const Standard_Integer j) {
3049 return myP1DS2[Index(i,j)];
3051 //----------------------------------------xP2DS1
3052 char& xP2DS1(const Standard_Integer i,
3053 const Standard_Integer j) {
3054 return myP2DS1[Index(i,j)];
3056 //----------------------------------------xIP1
3057 Standard_Integer& xIP1(const Standard_Integer i,
3058 const Standard_Integer j) {
3059 return myIP1[Index(i,j)];
3061 //----------------------------------------xIP2
3062 Standard_Integer& xIP2(const Standard_Integer i,
3063 const Standard_Integer j) {
3064 return myIP2[Index(i,j)];
3066 //----------------------------------------xP1
3067 gp_Pnt& xP1(const Standard_Integer i,
3068 const Standard_Integer j) {
3069 return myP1[Index(i,j)];
3071 //----------------------------------------xP1
3072 gp_Pnt& xP2(const Standard_Integer i,
3073 const Standard_Integer j) {
3074 return myP2[Index(i,j)];
3079 IntPatch_InfoPD (const IntPatch_InfoPD&);
3080 IntPatch_InfoPD& operator=(const IntPatch_InfoPD&);
3084 Standard_Integer myNBI;
3087 Standard_Integer *myIP1;
3088 Standard_Integer *myIP2;
3092 //modified by NIZNHY-PKV Tue May 24 11:38:55 2011t
3093 //==================================================================================
3094 // function : PointDepart
3096 //==================================================================================
3097 void IntPatch_PrmPrmIntersection::PointDepart(Handle(IntSurf_LineOn2S)& LineOn2S,
3098 const Handle(Adaptor3d_HSurface)& S1,
3099 const Standard_Integer SU_1,
3100 const Standard_Integer SV_1,
3101 const Handle(Adaptor3d_HSurface)& S2,
3102 const Standard_Integer SU_2,
3103 const Standard_Integer SV_2) const
3105 Standard_Integer i, j, xNBI;
3106 //modified by NIZNHY-PKV Tue May 24 11:37:38 2011f
3108 IntPatch_InfoPD aIPD(xNBI);
3109 //modified by NIZNHY-PKV Wed May 25 06:47:12 2011t
3110 Standard_Integer iC15, SU1, SV1, SU2, SV2;
3111 Standard_Real U0, U1, V0, V1, U, V;
3112 Standard_Real resu0,resv0;
3113 Standard_Real du1,du2,dv1,dv2, dmaxOn1, dmaxOn2;
3114 Standard_Real x0,y0,z0, x1,y1,z1,d;
3136 U0 = S1->FirstUParameter();
3137 U1 = S1->LastUParameter();
3138 V0 = S1->FirstVParameter();
3139 V1 = S1->LastVParameter();
3147 du1 = (U1-U0)/(SU1-1);
3148 dv1 = (V1-V0)/(SV1-1);
3149 for(U=U0,i=0; i<SU1; i++,U+=du1) {
3150 for(V=V0,j=0; j<SV1; V+=dv1,j++) {
3151 aIPD.xP1(i, j)= S1->Value(U,V);
3152 Box1.Add(aIPD.xP1(i, j));
3154 aIPD.xP1(i, j) .Coord(x0,y0,z0);
3155 aIPD.xP1(i-1, j-1).Coord(x1,y1,z1);
3157 d=Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
3164 Box1.Enlarge(1.e-8);
3166 U0 = S2->FirstUParameter();
3167 U1 = S2->LastUParameter();
3168 V0 = S2->FirstVParameter();
3169 V1 = S2->LastVParameter();
3171 du2 = (U1-U0)/(SU2-1);
3172 dv2 = (V1-V0)/(SV2-1);
3173 for(U=U0,i=0; i<SU2; i++,U+=du2) {
3174 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
3175 aIPD.xP2(i, j) = S2->Value(U,V);
3176 Box2.Add(aIPD.xP2(i, j));
3178 aIPD.xP2(i, j) .Coord(x0,y0,z0);
3179 aIPD.xP2(i-1, j-1).Coord(x1,y1,z1);
3180 d = Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
3187 Box2.Enlarge(1.e-8);
3190 if(Box1.IsOut(Box2)) {
3195 Standard_Integer aNbPG;
3196 Standard_Real x10,y10,z10,x11,y11,z11;
3197 Standard_Real x20,y20,z20,x21,y21,z21;
3198 Standard_Real dx, dy, dz, dmax;
3199 Standard_Real dx2, dy2, dz2;
3201 Box1.Get(x10,y10,z10,x11,y11,z11);
3202 Box2.Get(x20,y20,z20,x21,y21,z21);
3204 x0 = (x10>x20)? x10 : x20;
3205 y0 = (y10>y20)? y10 : y20;
3206 z0 = (z10>z20)? z10 : z20;
3208 x1 = (x11<x21)? x11 : x21;
3209 y1 = (y11<y21)? y11 : y21;
3210 z1 = (z11<z21)? z11 : z21;
3212 if(dmaxOn2 > dmaxOn1) {
3224 x10-=dmaxOn1; y10-=dmaxOn1; z10-=dmaxOn1;
3225 x11+=dmaxOn1; y11+=dmaxOn1; z11+=dmaxOn1;
3227 x20-=dmaxOn1; y20-=dmaxOn1; z20-=dmaxOn1;
3228 x21+=dmaxOn1; y21+=dmaxOn1; z21+=dmaxOn1;
3230 aNbPG=NbPointsGrille();
3257 IntPatch_PrmPrmIntersection_T3Bits M1(_BASE);
3258 IntPatch_PrmPrmIntersection_T3Bits M2(_BASE);
3260 for(i=0;i<SU1;i++) {
3261 for(j=0;j<SV1;j++) {
3263 const gp_Pnt& P=aIPD.xP1(i, j);
3264 aIPD.xP1DS2(i, j) = (char)CodeReject(x20,y20,z20,x21,y21,z21,P.X(),P.Y(),P.Z());
3265 int ix = (int)((P.X()-x0 + dx2 )/dx);
3266 if(DansGrille(ix)) {
3267 int iy = (int)((P.Y()-y0 + dy2)/dy);
3268 if(DansGrille(iy)) {
3269 int iz = (int)((P.Z()-z0 + dz2)/dz);
3270 if(DansGrille(iz)) {
3271 aIPD.xIP1(i, j) = GrilleInteger(ix,iy,iz);
3277 //-- cout<<" Grille du 1 fini "<<endl;
3278 for(i=0;i<SU2;i++) {
3279 for(j=0;j<SV2;j++) {
3281 const gp_Pnt& P=aIPD.xP2(i, j);
3282 aIPD.xP2DS1(i, j) = (char)CodeReject(x10,y10,z10,x11,y11,z11,P.X(),P.Y(),P.Z());
3283 int ix = (int)((P.X()-x0 + dx2)/dx);
3284 if(DansGrille(ix)) {
3285 int iy = (int)((P.Y()-y0 + dy2)/dy);
3286 if(DansGrille(iy)) {
3287 int iz = (int)((P.Z()-z0 + dz2)/dz);
3288 if(DansGrille(iz)) {
3289 aIPD.xIP2(i, j) = GrilleInteger(ix,iy,iz);
3296 for(i=0;i<SU1-1;i+=1) {
3297 for(j=0;j<SV1-1;j+=1) {
3298 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j)) ||
3299 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))){
3300 Remplit(aIPD.xIP1(i, j),
3302 aIPD.xIP1(i+1, j+1),
3305 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i, j+1)) ||
3306 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))) {
3307 Remplit(aIPD.xIP1(i, j),
3309 aIPD.xIP1(i+1, j+1),
3315 for(i=0;i<SU2-1;i+=1) {
3316 for(j=0;j<SV2-1;j+=1) {
3317 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j)) ||
3318 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3319 Remplit(aIPD.xIP2(i, j),
3321 aIPD.xIP2(i+1, j+1),
3324 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i, j+1)) ||
3325 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3326 Remplit(aIPD.xIP2(i, j),
3328 aIPD.xIP2(i+1, j+1),
3338 long unsigned Compt=0;
3340 int indicepointtraite = 0;
3341 Standard_Integer k,nu,nv;
3344 indicepointtraite--;
3345 ok = M1.And(M2,newind);
3347 IntegerGrille(newind,i,j,k);
3350 if( DansGrille(i-1) && DansGrille(j-1) && DansGrille(k-1)
3351 && DansGrille(i+1) && DansGrille(j+1) && DansGrille(k+1)) {
3353 for(si=-1; si<= 1 && nb<LIM; si++) {
3354 for(sj=-1; sj<= 1 && nb<LIM; sj++) {
3355 for(sk=-1; sk<= 1 && nb<LIM; sk++) {
3356 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3357 if(M1.Val(lu) && M2.Val(lu)) {
3364 for(si=-1; si<= 1; si++) {
3365 for(sj=-1; sj<= 1; sj++) {
3366 for(sk=-1; sk<= 1; sk++) {
3367 if(si || sj || sk) {
3368 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3377 gp_Pnt P(dx*i + x0, dy*j + y0, dz*k+z0);
3379 Standard_Integer nu1=-1,nu2=-1;
3380 Standard_Integer nv1=0, nv2=0;
3382 for(nu=0;nu1<0 && nu<SU1;nu++) {
3383 for(nv=0;nu1<0 && nv<SV1;nv++) {
3384 if( aIPD.xIP1(nu, nv) ==(Standard_Integer) newind ) {
3386 aIPD.xIP1(nu, nv)=indicepointtraite;
3393 for(nu=0;nu2<0 && nu<SU2;nu++) {
3394 for(nv=0;nu2<0 && nv<SV2;nv++) {
3395 if( aIPD.xIP2(nu, nv)==(Standard_Integer) newind ) {
3397 aIPD.xIP2(nu, nv)=indicepointtraite;
3403 if(nu1>=0 && nu2>=0) {
3404 IntSurf_PntOn2S POn2S;
3406 S1->FirstUParameter()+nu1*du1,
3407 S1->FirstVParameter()+nv1*dv1,
3408 S2->FirstUParameter()+nu2*du2,
3409 S2->FirstVParameter()+nv2*dv2);
3410 LineOn2S->Add(POn2S);
3414 //-- aucun point du triangle n a ete trouve assez proche
3415 //-- on recherche les 3 points les plus proches de P
3416 //-- dans chacun des tableaux
3417 Standard_Real Dist3[3],u3[3] = { 0.0, 0.0, 0.0 },v3[3] = { 0.0, 0.0, 0.0 };
3418 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3419 for(U=resu0,i=0; i<SU1; i++,U+=du1) {
3420 for(V=resv0,j=0; j<SV1; V+=dv1,j++) {
3421 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3422 Standard_Real t = aIPD.xP1(i, j).SquareDistance(P);
3423 //-- On remplace la plus grande valeur ds Dist[.] par la val courante
3424 if(Dist3[0]<Dist3[1]) {
3426 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3427 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3428 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3430 if(Dist3[1]<Dist3[2]) {
3432 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3433 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3434 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3436 if(Dist3[0]<Dist3[1]) {
3438 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3439 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3440 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3442 //-- la plus grande valeur est dans Dist3[0]
3444 Dist3[0]=t; u3[0]=U; v3[0]=V;
3449 Standard_Real U1_3 = (u3[0]+u3[1]+u3[2])/3.0;
3450 Standard_Real V1_3 = (v3[0]+v3[1]+v3[2])/3.0;
3452 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3453 for(U=U0,i=0; i<SU2; i++,U+=du2) {
3454 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
3455 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3456 Standard_Real t = aIPD.xP2(i, j).SquareDistance(P);
3457 //-- On remplace la plus grande valeur ds Dist3[.] par la val courante
3458 if(Dist3[0]<Dist3[1]) {
3460 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3461 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3462 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3464 if(Dist3[1]<Dist3[2]) {
3466 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3467 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3468 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3470 if(Dist3[0]<Dist3[1]) {
3472 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3473 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3474 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3476 //-- la plus grande valeur est dans Dist3[0]
3478 Dist3[0]=t; u3[0]=U; v3[0]=V;
3483 Standard_Real U2_3 = (u3[0]+u3[1]+u3[2])/3.0;
3484 Standard_Real V2_3 = (v3[0]+v3[1]+v3[2])/3.0;
3486 IntSurf_PntOn2S POn2S;
3487 POn2S.SetValue(P,U1_3,V1_3,U2_3,V2_3);
3488 LineOn2S->Add(POn2S);
3496 //==================================================================================
3497 // function : IsPointOnLine
3499 //==================================================================================
3501 Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S &thePOn2S,
3502 const Handle(IntPatch_WLine) &theWLine,
3503 const Standard_Real Deflection)
3505 Standard_Boolean isOnLine = Standard_False;
3506 Standard_Real Deflection2 = Deflection*Deflection;
3507 Standard_Real pu1, pu2, pv1, pv2;
3509 thePOn2S.Parameters(pu1, pv1, pu2, pv2);
3511 if ((theWLine->IsOutSurf1Box(gp_Pnt2d(pu1, pv1)) == Standard_False) &&
3512 (theWLine->IsOutSurf2Box(gp_Pnt2d(pu2, pv2)) == Standard_False) &&
3513 (theWLine->IsOutBox(thePOn2S.Value()) == Standard_False)) {
3514 const Standard_Integer NbPntOn2SOnLine = theWLine->NbPnts();
3515 Standard_Integer ll;
3517 for (ll=1; ll < NbPntOn2SOnLine && !isOnLine; ll++) {
3518 const gp_Pnt &Pa = theWLine->Point(ll).Value();
3519 const gp_Pnt &Pb = theWLine->Point(ll+1).Value();
3520 const gp_Pnt &PStart = thePOn2S.Value();
3521 const gp_Vec AM(Pa, PStart);
3522 const gp_Vec MB(PStart,Pb);
3523 const Standard_Real AMMB = AM.Dot(MB);
3526 gp_Dir ABN(Pb.X() - Pa.X(), Pb.Y() - Pa.Y(), Pb.Z() - Pa.Z());
3527 Standard_Real lan = ABN.X()*AM.X() + ABN.Y()*AM.Y() + ABN.Z()*AM.Z();
3528 gp_Vec AH(lan*ABN.X(), lan*ABN.Y(), lan*ABN.Z());
3529 gp_Vec HM(AM.X() - AH.X(), AM.Y() - AH.Y(), AM.Z() - AH.Z());
3530 Standard_Real d = 0.0;
3532 if(HM.X() < Deflection) {
3535 if(HM.Y() < Deflection) {
3538 if(HM.Z() < Deflection) {
3550 if(d < Deflection2) {
3551 isOnLine = Standard_True;
3554 Standard_Real dab = Pa.SquareDistance(Pb);
3555 Standard_Real dap = Pa.SquareDistance(PStart);
3558 isOnLine = Standard_True;
3560 Standard_Real dbp = Pb.SquareDistance(PStart);
3563 isOnLine = Standard_True;
3573 //==================================================================================
3574 // function : AddWLine
3576 //==================================================================================
3578 void AddWLine(IntPatch_SequenceOfLine &theLines,
3579 const Handle(IntPatch_WLine) &theWLine,
3580 const Standard_Real Deflection)
3582 Standard_Integer i = 1;
3583 Standard_Integer aNbLines = theLines.Length();
3584 Standard_Boolean isToRemove;
3586 // Check each line of theLines if it is on theWLine.
3587 while (i <= aNbLines) {
3588 Handle(IntPatch_WLine) aWLine =
3589 Handle(IntPatch_WLine)::DownCast(theLines.Value(i));
3591 isToRemove = Standard_False;
3593 if (aWLine.IsNull() == Standard_False) {
3594 // Check the middle point.
3595 Standard_Integer aMidIndex = (aWLine->NbPnts() + 1)/2;
3597 if (aMidIndex > 0) {
3598 const IntSurf_PntOn2S &aPnt = aWLine->Point(aMidIndex);
3600 if (IsPointOnLine(aPnt, theWLine, Deflection)) {
3601 // Middle point is on theWLine. Check vertices.
3602 isToRemove = Standard_True;
3605 const Standard_Integer aNbVtx = aWLine->NbVertex();
3607 for (j = 1; j <= aNbVtx; j++) {
3608 const IntPatch_Point &aPoint = aWLine->Vertex(j);
3610 if (!IsPointOnLine(aPoint.PntOn2S(), theWLine, Deflection)) {
3611 isToRemove = Standard_False;
3627 // Add theWLine to the sequence of lines.
3628 theLines.Append(theWLine);