0024208: Optimization of the edge-edge and edge-face intersection algorithms
[occt.git] / src / IntPatch / IntPatch_PrmPrmIntersection.cxx
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b311480e 1// Created on: 1993-02-02
2// Created by: Laurent BUCHARD
3// Copyright (c) 1993-1999 Matra Datavision
973c2be1 4// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 5//
973c2be1 6// This file is part of Open CASCADE Technology software library.
b311480e 7//
973c2be1 8// This library is free software; you can redistribute it and / or modify it
9// under the terms of the GNU Lesser General Public 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.
b311480e 13//
973c2be1 14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
7fd59977 16
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
19
20#include <IntPatch_PrmPrmIntersection.ixx>
21
22#include <IntPatch_TheInterfPolyhedron.hxx>
23#include <IntPatch_ThePWalkingInter.hxx>
24#include <IntPatch_WLine.hxx>
25#include <IntPatch_RstInt.hxx>
26
27#include <IntPatch_Line.hxx>
28
29#include <Handle_IntSurf_LineOn2S.hxx>
30#include <IntSurf_PntOn2S.hxx>
31#include <IntSurf_LineOn2S.hxx>
32#include <TColStd_Array1OfReal.hxx>
33#include <Intf_PIType.hxx>
34#include <Intf_SectionLine.hxx>
35#include <Intf_TangentZone.hxx>
36#include <Intf_SectionPoint.hxx>
37#include <gp_Pnt.hxx>
38#include <gp_Dir.hxx>
39#include <IntPolyh_Intersection.hxx>
40
41#include <TColStd_SequenceOfInteger.hxx>
42#include <IntSurf_ListIteratorOfListOfPntOn2S.hxx>
43#include <TColStd_HArray1OfReal.hxx>
44
45static void SectionPointToParameters(const Intf_SectionPoint& Sp,
46 const IntPatch_Polyhedron& Surf1,
47 const IntPatch_Polyhedron& Surf2,
48 Standard_Real& u1,
49 Standard_Real& v1,
50 Standard_Real& u2,
51 Standard_Real& v2);
52
53
54static
55 void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
56 const Handle(Adaptor3d_HSurface)& Surf2,
57 IntPatch_SequenceOfLine& aSLin);
58
b1c5c4e6 59static
60 IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
61 const IntSurf_PntOn2S& oldPnt,
62 const Standard_Real* Periods);
63
a7dd5d0f 64static Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S &thePOn2S,
65 const Handle(IntPatch_WLine) &theWLine,
66 const Standard_Real Deflection);
67
68static void AddWLine(IntPatch_SequenceOfLine &theLines,
69 const Handle(IntPatch_WLine) &theWLine,
70 const Standard_Real Deflection);
71
72
7fd59977 73//==================================================================================
74// function :
75// purpose :
76//==================================================================================
77IntPatch_PrmPrmIntersection::IntPatch_PrmPrmIntersection(): done(Standard_False)
78{
79}
80
81//==================================================================================
82// function : Perform
83// purpose :
84//==================================================================================
85void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
86 const Handle(Adaptor3d_TopolTool)& D1,
87 const Standard_Real TolTangency,
88 const Standard_Real Epsilon,
89 const Standard_Real Deflection,
90 const Standard_Real Increment)
91{
92 IntPatch_Polyhedron Poly1( Surf1, D1->NbSamplesU(), D1->NbSamplesV() );
93 Perform( Surf1, Poly1, D1, TolTangency, Epsilon, Deflection, Increment );
94}
95
96//==================================================================================
97// function : Perform
98// purpose :
99//==================================================================================
100void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
101 const IntPatch_Polyhedron& Poly1,
102 const Handle(Adaptor3d_TopolTool)& D1,
103 const Handle(Adaptor3d_HSurface)& Surf2,
104 const Handle(Adaptor3d_TopolTool)& D2,
105 const Standard_Real TolTangency,
106 const Standard_Real Epsilon,
107 const Standard_Real Deflection,
108 const Standard_Real Increment)
109{
110 IntPatch_Polyhedron Poly2( Surf2 );
111 Perform( Surf1, Poly1, D1, Surf2, Poly2, D2, TolTangency, Epsilon, Deflection, Increment);
112}
113
114//==================================================================================
115// function : Perform
116// purpose :
117//==================================================================================
118void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
119 const Handle(Adaptor3d_TopolTool)& D1,
120 const Handle(Adaptor3d_HSurface)& Surf2,
121 const IntPatch_Polyhedron& Poly2,
122 const Handle(Adaptor3d_TopolTool)& D2,
123 const Standard_Real TolTangency,
124 const Standard_Real Epsilon,
125 const Standard_Real Deflection,
126 const Standard_Real Increment)
127{
128 IntPatch_Polyhedron Poly1( Surf1 );
129 Perform( Surf1, Poly1, D1, Surf2, Poly2, D2, TolTangency, Epsilon, Deflection, Increment );
130}
131
132//==================================================================================
133// function : Perform
134// purpose :
135//==================================================================================
136void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
137 const IntPatch_Polyhedron& Poly1,
138 const Handle(Adaptor3d_TopolTool)& D1,
139 const Handle(Adaptor3d_HSurface)& Surf2,
140 const IntPatch_Polyhedron& Poly2,
141 const Handle(Adaptor3d_TopolTool)& D2,
142 const Standard_Real TolTangency,
143 const Standard_Real Epsilon,
144 const Standard_Real Deflection,
145 const Standard_Real Increment)
146{
147 IntPatch_TheInterfPolyhedron Interference(Poly1,Poly2);
148 empt = Standard_True;
149 done = Standard_True;
150 SLin.Clear();
151
7fd59977 152 Standard_Integer nbLigSec = Interference.NbSectionLines();
153 Standard_Integer nbTanZon = Interference.NbTangentZones();
154
7fd59977 155 Standard_Integer NbLigCalculee = 0;
156
157 Standard_Real U1,U2,V1,V2;
158 Standard_Real pu1,pu2,pv1,pv2;
159
160 TColStd_Array1OfReal StartParams(1,4);
161
162 IntPatch_ThePWalkingInter PW( Surf1, Surf2, TolTangency, Epsilon, Deflection, Increment );
163
164 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
165 Standard_Real incidence;
166 Standard_Real dminiPointLigne;
167
168 Standard_Boolean HasStartPoint,RejetLigne;
169
170 IntSurf_PntOn2S StartPOn2S;
171
172 Standard_Integer ver;
173
174 gp_Pnt Point3dDebut,Point3dFin;
175
176 if( nbLigSec >= 1 ) {
177 Standard_Integer *TabL = new Standard_Integer [nbLigSec+1];
178 Standard_Integer ls;
179 for( ls = 1; ls <= nbLigSec; ls++ )
180 TabL[ls]=ls;
181
182 Standard_Boolean triok;
183 do {
184 triok=Standard_True;
185 for(Standard_Integer b=2; b<=nbLigSec; b++) {
186 Standard_Integer nb_B = Interference.LineValue(TabL[b]).NumberOfPoints();
187 Standard_Integer nb_A = Interference.LineValue(TabL[b-1]).NumberOfPoints();
188 if( nb_B > nb_A ) {
189 Standard_Integer tyu=TabL[b];
190 TabL[b]=TabL[b-1];
191 TabL[b-1]=tyu;
192 triok=Standard_False;
193 }
194 }
195 } while( triok==Standard_False );
196
197 for( ls = 1; ls <= nbLigSec; ls++) {
198 const Intf_SectionLine& LineSec=Interference.LineValue(TabL[ls]);
199 Standard_Integer nbp = LineSec.NumberOfPoints();
200
201 Standard_Integer *TabPtDep = new Standard_Integer [nbp+1];
202 Standard_Integer ilig;
203 for( ilig = 1; ilig <= nbp; ilig++)
204 TabPtDep[ilig]=0;
205
206 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
207 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
208
209 SectionPointToParameters(LineSec.GetPoint(1),Poly1,Poly2,UminLig1,VminLig1,UminLig2,VminLig2);
210
211 UmaxLig1=UminLig1;
212 VmaxLig1=VminLig1;
213 UmaxLig2=UminLig2;
214 VmaxLig2=VminLig2;
215
216 for( ilig = 2; ilig <= nbp; ilig++ ) {
217 SectionPointToParameters(LineSec.GetPoint(ilig),Poly1,Poly2,U1,V1,U2,V2);
218
219 if(U1>UmaxLig1) UmaxLig1=U1;
220 if(V1>VmaxLig1) VmaxLig1=V1;
221 if(U2>UmaxLig2) UmaxLig2=U2;
222 if(V2>VmaxLig2) VmaxLig2=V2;
223
224 if(U1<UminLig1) UminLig1=U1;
225 if(V1<VminLig1) VminLig1=V1;
226 if(U2<UminLig2) UminLig2=U2;
227 if(V2<VminLig2) VminLig2=V2;
228 }
229
230 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
231 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
232 Standard_Integer IndicePointdeDepart1 = 0,IndicePointdeDepart2 = 0;
233 Standard_Boolean lignetrouvee=Standard_False;
234
235 do {
236 NombreDePointsDeDepartDuCheminement++;
237 if(NombreDePointsDeDepartDuCheminement == 1) {
238 incidence=3.0;
239 Standard_Integer nbp1_4=nbp/4;
240 Standard_Integer nbp3_4=nbp-nbp1_4;
241
242 Standard_Integer nsp;
243 for(nsp=nbp/2; nsp<nbp3_4; nsp++) {
244 Standard_Real CurrentIncidence = LineSec.GetPoint(nsp).Incidence();
245 if(CurrentIncidence < incidence) {
246 nbps2 = nsp;
247 incidence = 0.9*CurrentIncidence;
248 }
249 }
250
251 for(nsp=nbp/2; nsp>nbp1_4; nsp--) {
252 Standard_Real CurrentIncidence = LineSec.GetPoint(nsp).Incidence();
253 if(CurrentIncidence < incidence) {
254 nbps2 = nsp;
255 incidence = 0.9*CurrentIncidence;
256 }
257 }
258
259 if(nbp<3)
260 NombreDePointsDeDepartDuCheminement=3;
261
262 IndicePointdeDepart1 = nbps2;
263 }
264 else if(NombreDePointsDeDepartDuCheminement == 2) {
265 if(IndicePointdeDepart1 == 1) {
266 nbps2 = nbp/2;
267 IndicePointdeDepart2 = nbps2;
268 }
269 else {
270 nbps2 = 1;
271 IndicePointdeDepart2 = 1;
272 }
273 }
274 else if(NombreDePointsDeDepartDuCheminement == 3) {
275 if(IndicePointdeDepart1 == nbp)
276 nbps2 = (IndicePointdeDepart1+IndicePointdeDepart2)/2;
277 else
278 nbps2 = nbp;
279 }
280 else {
281 nbps2 = NombreDePointsDeDepartDuCheminement-3;
282 NombreDePointsDeDepartDuCheminement++;
283 }
284
285 if(TabPtDep[nbps2]==0) {
286 TabPtDep[nbps2]=1;
287 SectionPointToParameters(LineSec.GetPoint(nbps2),Poly1,Poly2,U1,V1,U2,V2);
288
289 StartParams(1) = U1;
290 StartParams(2) = V1;
291 StartParams(3) = U2;
292 StartParams(4) = V2;
293
294 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
295 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
296
297 if(HasStartPoint) {
298 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
299 NbLigCalculee = SLin.Length();
300 Standard_Integer l;
301 for( l=1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
a7dd5d0f 302 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
7fd59977 303
a7dd5d0f 304 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
305 dminiPointLigne = 0.0;
306 }
7fd59977 307 } // for ( l ...
308
309 if(dminiPointLigne > SeuildPointLigne) {
310 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
311 if(PW.IsDone()) {
312 if(PW.NbPoints()>2) {
313 RejetLigne = Standard_False;
314 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 315 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
316 Point3dFin = PointFin.Value();
7fd59977 317 for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
318 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
a7dd5d0f 319
320 // Check end point if it is on existing line.
321 // Start point is checked before.
322 if (IsPointOnLine(PointFin, verwline, Deflection)) {
323 RejetLigne = Standard_True;
324 break;
325 }
326
327 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
7fd59977 328 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
329 if( Point3dDebut.Distance(verPointDebut.Value()) <= TolTangency ) {
330 if(Point3dFin.Distance(verPointFin.Value()) <= TolTangency)
331 RejetLigne = Standard_True;
332 }
333 }
334
335 if(!RejetLigne) {
336 // Calculation transition
337 IntSurf_TypeTrans trans1,trans2;
338 Standard_Real locu,locv;
339 gp_Vec norm1,norm2,d1u,d1v;
340 gp_Pnt ptbid;
341 Standard_Integer indextg;
342 gp_Vec tgline(PW.TangentAtLine(indextg));
343 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
344 Surf1->D1(locu,locv,ptbid,d1u,d1v);
345 norm1 = d1u.Crossed(d1v);
346 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
347 Surf2->D1(locu,locv,ptbid,d1u,d1v);
348 norm2 = d1u.Crossed(d1v);
349 if(tgline.DotCross(norm2,norm1)>0.) {
350 trans1 = IntSurf_Out;
351 trans2 = IntSurf_In;
352 }
353 else {
354 trans1 = IntSurf_In;
355 trans2 = IntSurf_Out;
356 }
357
358 Standard_Real TolTang = TolTangency;
359 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
360 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
361 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
362
363 if(wline->NbVertex() == 0) {
364 IntPatch_Point vtx;
365 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
366 POn2S.Parameters(pu1,pv1,pu2,pv2);
367 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
368 vtx.SetParameters(pu1,pv1,pu2,pv2);
369 vtx.SetParameter(1);
370 wline->AddVertex(vtx);
371
372 POn2S = PW.Line()->Value(wline->NbPnts());
373 POn2S.Parameters(pu1,pv1,pu2,pv2);
374 vtx.SetValue(Point3dFin,TolTang,Standard_False);
375 vtx.SetParameters(pu1,pv1,pu2,pv2);
376 vtx.SetParameter(wline->NbPnts());
377 wline->AddVertex(vtx);
378 }
379
380 lignetrouvee = Standard_True;
a7dd5d0f 381 AddWLine(SLin, wline, Deflection);
7fd59977 382 empt = Standard_False;
383 }// !RejetLigne
384 }// PW.NbPoints()>2
385 }// done is True
386 }// dminiPointLigne > SeuildPointLigne
387 }// HasStartPoint
388 }// TabPtDep[nbps2]==0
389 } while( nbp>5 && ( !( ( (NombreDePointsDeDepartDuCheminement >= 3) && lignetrouvee ) ||
390 ( (NombreDePointsDeDepartDuCheminement-3>=nbp) && !lignetrouvee ) ) ) );
391
392 delete [] TabPtDep;
393 }// for( ls ...
394
395 delete [] TabL;
396 }// nbLigSec >= 1
397
398 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
399 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
400
401 UminLig1=VminLig1=UminLig2=VminLig2=RealLast();
402 UmaxLig1=VmaxLig1=UmaxLig2=VmaxLig2=-UminLig1;
403
404 Standard_Integer z;
405 for(z=1; z <= nbTanZon; z++) {
406 const Intf_TangentZone& TangentZone=Interference.ZoneValue(z);
407 for(Standard_Integer pz=1; pz<=TangentZone.NumberOfPoints(); pz++) {
408 SectionPointToParameters(TangentZone.GetPoint(pz),Poly1,Poly2,U1,V1,U2,V2);
409
410 if(U1>UmaxLig1) UmaxLig1=U1;
411 if(V1>VmaxLig1) VmaxLig1=V1;
412 if(U2>UmaxLig2) UmaxLig2=U2;
413 if(V2>VmaxLig2) VmaxLig2=V2;
414
415 if(U1<UminLig1) UminLig1=U1;
416 if(V1<VminLig1) VminLig1=V1;
417 if(U2<UminLig2) UminLig2=U2;
418 if(V2<VminLig2) VminLig2=V2;
419 }
420 }
421
422 for(z=1; z <= nbTanZon; z++) {
423 const Intf_TangentZone& TangentZone=Interference.ZoneValue(z);
424 Standard_Integer pz;
425 for( pz=1; pz<=TangentZone.NumberOfPoints(); pz++) {
426 SectionPointToParameters(TangentZone.GetPoint(pz),Poly1,Poly2,U1,V1,U2,V2);
427
428 StartParams(1) = U1;
429 StartParams(2) = V1;
430 StartParams(3) = U2;
431 StartParams(4) = V2;
432
433 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
434 if(HasStartPoint) {
435 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
436 NbLigCalculee = SLin.Length();
437 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
438 Standard_Integer l;
439 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
a7dd5d0f 440 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
7fd59977 441
a7dd5d0f 442 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
443 dminiPointLigne = 0.0;
444 }
7fd59977 445 }// for( l ...
446
447 if(dminiPointLigne > SeuildPointLigne) {
448 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
449 if(PW.IsDone()) {
450 if(PW.NbPoints()>2) {
451 RejetLigne = Standard_False;
452 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 453 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
454 Point3dFin = PointFin.Value();
7fd59977 455 for(ver=1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
456 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
a7dd5d0f 457
458 // Check end point if it is on existing line.
459 // Start point is checked before.
460 if (IsPointOnLine(PointFin, verwline, Deflection)) {
461 RejetLigne = Standard_True;
462 break;
463 }
464
7fd59977 465 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
466 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
467 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
468 RejetLigne = Standard_True;
469 else {
470 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
471 RejetLigne = Standard_True;
472 }
473 }
474
475 if(!RejetLigne) {
476 IntSurf_TypeTrans trans1,trans2;
477 Standard_Real locu,locv;
478 gp_Vec norm1,norm2,d1u,d1v;
479 gp_Pnt ptbid;
480 Standard_Integer indextg;
481 gp_Vec tgline(PW.TangentAtLine(indextg));
482 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
483 Surf1->D1(locu,locv,ptbid,d1u,d1v);
484 norm1 = d1u.Crossed(d1v);
485 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
486 Surf2->D1(locu,locv,ptbid,d1u,d1v);
487 norm2 = d1u.Crossed(d1v);
488 if(tgline.DotCross(norm2,norm1)>0.) {
489 trans1 = IntSurf_Out;
490 trans2 = IntSurf_In;
491 }
492 else {
493 trans1 = IntSurf_In;
494 trans2 = IntSurf_Out;
495 }
496
497 Standard_Real TolTang = TolTangency;
498 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
499 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
500 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
501
502 if(wline->NbVertex() == 0) {
503 IntPatch_Point vtx;
504 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
505 POn2S.Parameters(pu1,pv1,pu2,pv2);
506 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
507 vtx.SetParameters(pu1,pv1,pu2,pv2);
508 vtx.SetParameter(1);
509 wline->AddVertex(vtx);
510
511 POn2S = PW.Line()->Value(wline->NbPnts());
512 POn2S.Parameters(pu1,pv1,pu2,pv2);
513 vtx.SetValue(Point3dFin,TolTang,Standard_False);
514 vtx.SetParameters(pu1,pv1,pu2,pv2);
515 vtx.SetParameter(wline->NbPnts());
516 wline->AddVertex(vtx);
517 }
518
a7dd5d0f 519 AddWLine(SLin, wline, Deflection);
7fd59977 520 empt = Standard_False;
521 }// if !RejetLigne
522 }// PW.NbPoints()>2
523 }// done is True
524 }// dminiPointLigne > SeuildPointLigne
525 }// HasStartPoint
526 }// for( pz ...
527 }// for( z ...
528}
529
530//==================================================================================
531// function : Perform
532// purpose :
533//==================================================================================
534void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
535 const IntPatch_Polyhedron& Poly1,
536 const Handle(Adaptor3d_TopolTool)& D1,
537 const Standard_Real TolTangency,
538 const Standard_Real Epsilon,
539 const Standard_Real Deflection,
540 const Standard_Real Increment)
541{
542 IntPatch_TheInterfPolyhedron Interference(Poly1);
543 empt = Standard_True;
544 done = Standard_True;
545 SLin.Clear();
546
547 Standard_Integer nbLigSec = Interference.NbSectionLines();
548 Standard_Integer nbTanZon = Interference.NbTangentZones();
549
550 Standard_Integer NbPntOn2SOnLine;
551 Standard_Integer NbLigCalculee = 0;
552
553 Standard_Real U1,U2,V1,V2;
554 Standard_Real pu1,pu2,pv1,pv2;
555
556 TColStd_Array1OfReal StartParams(1,4);
557 IntPatch_ThePWalkingInter PW(Surf1,Surf1,TolTangency,Epsilon,Deflection,Increment);
558
559 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
560 Standard_Real incidence;
561 Standard_Real dminiPointLigne;
562
563 Standard_Boolean HasStartPoint,RejetLigne;
564
565 IntSurf_PntOn2S StartPOn2S;
566
567 Standard_Integer ver;
568
569 gp_Pnt Point3dDebut,Point3dFin;
570
571 if(nbLigSec>=1) {
572 Standard_Integer ls;
573 for( ls = 1; ls <= nbLigSec; ls++) {
574 const Intf_SectionLine& LineSec=Interference.LineValue(ls);
575 Standard_Integer nbp = LineSec.NumberOfPoints();
576 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
577 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
578 Standard_Integer IndicePointdeDepart1 = 0, IndicePointdeDepart2 = 0;
579 do {
580 NombreDePointsDeDepartDuCheminement++;
581 if(NombreDePointsDeDepartDuCheminement == 1) {
582 incidence = 0.0;
583 Standard_Integer nsp1;
584 for( nsp1= nbp/2; nsp1 >= 1; nsp1--) {
585 SectionPointToParameters(LineSec.GetPoint(nsp1),Poly1,Poly1,U1,V1,U2,V2);
586 Standard_Real CurrentIncidence = Abs(U1-U2)+Abs(V1-V2);
587 if(CurrentIncidence > incidence) {
588 nbps2 = nsp1;
589 incidence = CurrentIncidence;
590 }
591 }
592 for( nsp1 = nbp/2; nsp1 <= nbp; nsp1++) {
593 SectionPointToParameters(LineSec.GetPoint(nsp1),Poly1,Poly1,U1,V1,U2,V2);
594 Standard_Real CurrentIncidence = Abs(U1-U2)+Abs(V1-V2);
595 if(CurrentIncidence > incidence) {
596 nbps2 = nsp1;
597 incidence = CurrentIncidence;
598 }
599 }
600
601 if(nbp<3)
602 NombreDePointsDeDepartDuCheminement=3;
603
604 IndicePointdeDepart1 = nbps2;
605 }
606 else if(NombreDePointsDeDepartDuCheminement == 2) {
607 if(IndicePointdeDepart1 == 1) {
608 nbps2 = nbp/2;
609 IndicePointdeDepart2 = nbps2;
610 }
611 else {
612 nbps2 = 1;
613 IndicePointdeDepart2 = 1;
614 }
615 }
616 else {
617 if(IndicePointdeDepart1 == nbp)
618 nbps2 = (IndicePointdeDepart1+IndicePointdeDepart2)/2;
619 else
620 nbps2 = nbp;
621 }
622
623 SectionPointToParameters(LineSec.GetPoint(nbps2),Poly1,Poly1,U1,V1,U2,V2);
624
625 StartParams(1) = U1;
626 StartParams(2) = V1;
627 StartParams(3) = U2;
628 StartParams(4) = V2;
629
630 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
631 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
632 if(HasStartPoint) {
633 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
634 if(Abs(pu1-pu2)>1e-7 || Abs(pv1-pv2)>1e-7) {
635 NbLigCalculee = SLin.Length();
636 Standard_Integer l;
637 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
a7dd5d0f 638 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
7fd59977 639 if( (testwline->IsOutSurf1Box(gp_Pnt2d(pu1,pv1))==Standard_False) &&
640 (testwline->IsOutSurf2Box(gp_Pnt2d(pu2,pv2))==Standard_False) &&
641 (testwline->IsOutBox(StartPOn2S.Value())==Standard_False) ) {
642 NbPntOn2SOnLine = testwline->NbPnts();
643 Standard_Integer ll;
644 for( ll=1; (ll < NbPntOn2SOnLine) && (dminiPointLigne >= SeuildPointLigne); ll++) {
645 Standard_Real t,Au1,Av1,Au2,Av2,Bu1,Bv1,Bu2,Bv2;
646 testwline->Point(ll).Parameters(Au1,Av1,Au2,Av2);
647 testwline->Point(ll+1).Parameters(Bu1,Bv1,Bu2,Bv2);
648 if(Au1>Bu1) {
649 t=Au1;
650 Au1=Bu1;
651 Bu1=t;
652 }
653 if(Av1>Bv1) {
654 t=Av1;
655 Av1=Bv1;
656 Bv1=t;
657 }
658 Au1-=1.0e-7;
659 Av1-=1.0e-7;
660 Bu1+=1.0e-7;
661 Bv1+=1.0e-7;
662
663 if((pu1>=Au1) && (pu1<=Bu1) && (pv1>=Av1) && (pv1<=Bv1))
664 dminiPointLigne = 0.0;
665 else {
666 if((pu2>=Au1) && (pu2<=Bu1) && (pv2>=Av1) && (pv2<=Bv1))
667 dminiPointLigne = 0.0;
668 }
669 }// for( ll ...
670 }// if ...
671 }// for( l ...
672
673 if(dminiPointLigne > SeuildPointLigne) {
674 PW.Perform(StartParams);
675 if(PW.IsDone()) {
676 if(PW.NbPoints()>2) {
677 RejetLigne = Standard_False;
678 Point3dDebut = PW.Value(1).Value();
679 Point3dFin = PW.Value(PW.NbPoints()).Value();
680 for(ver=1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
681 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
682 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
683 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
684 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
685 RejetLigne = Standard_True;
686 else {
687 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
688 RejetLigne = Standard_True;
689 }
690 }
691
692 if(!RejetLigne) {
693 IntSurf_TypeTrans trans1,trans2;
694 Standard_Real locu,locv;
695 gp_Vec norm1,norm2,d1u,d1v;
696 gp_Pnt ptbid;
697 Standard_Integer indextg;
698 gp_Vec tgline(PW.TangentAtLine(indextg));
699 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
700 Surf1->D1(locu,locv,ptbid,d1u,d1v);
701 norm1 = d1u.Crossed(d1v);
702 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
703 Surf1->D1(locu,locv,ptbid,d1u,d1v);
704 norm2 = d1u.Crossed(d1v);
705 if (tgline.DotCross(norm2,norm1)>0.) {
706 trans1 = IntSurf_Out;
707 trans2 = IntSurf_In;
708 }
709 else {
710 trans1 = IntSurf_In;
711 trans2 = IntSurf_Out;
712 }
713
714 IntSurf_LineOn2S LineOn2S;
715 Standard_Integer nbpw,imin,imax,i;
716 nbpw = PW.Line()->NbPoints();
717 Standard_Real u1,v1,u2,v2;
718 i=0;
719 do {
720 i++;
721 imin=i;
722 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
723 Pi.Parameters(u1,v1,u2,v2);
724 } while((i<nbpw)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
725
726 if(imin>2)
727 imin--;
728
729 i=nbpw+1;
730 do {
731 i--;
732 imax=i;
733 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
734 Pi.Parameters(u1,v1,u2,v2);
735 } while((i>2)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
736
737 if(imax<nbpw)
738 imax++;
739
740 if(imin<imax) {
741 Handle_IntSurf_LineOn2S PWLine = new IntSurf_LineOn2S();
742 for(i=imin;i<=imax;i++)
743 PWLine->Add(PW.Line()->Value(i));
744
745 Standard_Real TolTang = TolTangency;
746 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PWLine,Standard_False,trans1,trans2);
747 const IntSurf_PntOn2S& POn2SDeb = wline->Point(1);
748 const IntSurf_PntOn2S& POn2SFin = wline->Point(wline->NbPnts());
749 if((POn2SDeb.Value()).Distance(POn2SFin.Value()) <= TolTangency) {
750 Standard_Real u1t,v1t,u2t,v2t;
751 POn2SDeb.Parameters(u1t,v1t,u2t,v2t);
752 IntPatch_Point vtx;
753 vtx.SetValue(POn2SDeb.Value(),TolTang,Standard_False);
754 vtx.SetParameters(u2t,v2t,u1t,v1t);
755 vtx.SetParameter(wline->NbPnts());
756 wline->SetPoint(wline->NbPnts(),vtx);
757 }
758 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf1,Standard_True,TolTang);
759 if(wline->NbVertex() == 0) {
760 IntPatch_Point vtx;
761 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
762 POn2S.Parameters(pu1,pv1,pu2,pv2);
763 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
764 vtx.SetParameters(pu1,pv1,pu2,pv2);
765 vtx.SetParameter(1);
766 wline->AddVertex(vtx);
767
768 POn2S = PW.Line()->Value(wline->NbPnts());
769 POn2S.Parameters(pu1,pv1,pu2,pv2);
770 vtx.SetValue(Point3dFin,TolTang,Standard_False);
771 vtx.SetParameters(pu1,pv1,pu2,pv2);
772 vtx.SetParameter(wline->NbPnts());
773 wline->AddVertex(vtx);
774 }
775 SLin.Append(wline);
776 empt = Standard_False;
777 }// imin<imax
778 }// !RejetLigne
779 }// PW.NbPoints()>2
780 }// done is True
781 }// dminiPointLigne > SeuildPointLigne
782 }// Abs || Abs
783 }// HasStartPoint
784 } while(nbp>5 && NombreDePointsDeDepartDuCheminement<3);
785 }// for( ls ...
786 }// nbLigSec>=1
787
788 Standard_Integer z;
789 for( z = 1; z <= nbTanZon; z++) {
790 const Intf_TangentZone& TangentZone=Interference.ZoneValue(z);
791 for(Standard_Integer pz=1; pz<=TangentZone.NumberOfPoints(); pz++) {
792 SectionPointToParameters(TangentZone.GetPoint(pz),Poly1,Poly1,U1,V1,U2,V2);
793
794 StartParams(1) = U1;
795 StartParams(2) = V1;
796 StartParams(3) = U2;
797 StartParams(4) = V2;
798
799 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
800 if(HasStartPoint) {
801 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
802 if(Abs(pu1-pu2)>1e-7 || Abs(pv1-pv2)>1e-7) {
803 NbLigCalculee = SLin.Length();
804 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
805 Standard_Integer l;
806 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
a7dd5d0f 807 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
7fd59977 808 if( (testwline->IsOutSurf1Box(gp_Pnt2d(pu1,pv1))==Standard_False) &&
809 (testwline->IsOutSurf2Box(gp_Pnt2d(pu2,pv2))==Standard_False) &&
810 (testwline->IsOutBox(StartPOn2S.Value())==Standard_False) ) {
811 NbPntOn2SOnLine = testwline->NbPnts();
812 Standard_Integer ll;
813 for( ll = 1; (ll < NbPntOn2SOnLine) && (dminiPointLigne >= SeuildPointLigne); ll++) {
814 Standard_Real t,Au1,Av1,Au2,Av2,Bu1,Bv1,Bu2,Bv2;
815 testwline->Point(ll).Parameters(Au1,Av1,Au2,Av2);
816 testwline->Point(ll+1).Parameters(Bu1,Bv1,Bu2,Bv2);
817 if(Au1>Bu1) {
818 t=Au1;
819 Au1=Bu1;
820 Bu1=t;
821 }
822 if(Av1>Bv1) {
823 t=Av1;
824 Av1=Bv1;
825 Bv1=t;
826 }
827 Au1-=1.0e-7;
828 Av1-=1.0e-7;
829 Bu1+=1.0e-7;
830 Bv1+=1.0e-7;
831 if((pu1>=Au1) && (pu1<=Bu1) && (pv1>=Av1) && (pv1<=Bv1))
832 dminiPointLigne = 0.0;
833 else {
834 if((pu2>=Au1) && (pu2<=Bu1) && (pv2>=Av1) && (pv2<=Bv1))
835 dminiPointLigne = 0.0;
836 }
837 }// for( ll ...
838 }// if ...
839 }// for( l ...
840
841 if(dminiPointLigne > SeuildPointLigne) {
842 PW.Perform(StartParams);
843 if(PW.IsDone()) {
844 if(PW.NbPoints()>2) {
845 RejetLigne = Standard_False;
846 Point3dDebut = PW.Value(1).Value();
847 Point3dFin = PW.Value(PW.NbPoints()).Value();
848 for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
849 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
850 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
851 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
852 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
853 RejetLigne = Standard_True;
854 else {
855 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
856 RejetLigne = Standard_True;
857 }
858 }
859
860 if(!RejetLigne) {
861 IntSurf_TypeTrans trans1,trans2;
862 Standard_Real locu,locv;
863 gp_Vec norm1,norm2,d1u,d1v;
864 gp_Pnt ptbid;
865 Standard_Integer indextg;
866 gp_Vec tgline(PW.TangentAtLine(indextg));
867 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
868 Surf1->D1(locu,locv,ptbid,d1u,d1v);
869 norm1 = d1u.Crossed(d1v);
870 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
871 Surf1->D1(locu,locv,ptbid,d1u,d1v);
872 norm2 = d1u.Crossed(d1v);
873 if(tgline.DotCross(norm2,norm1)>0.) {
874 trans1 = IntSurf_Out;
875 trans2 = IntSurf_In;
876 }
877 else {
878 trans1 = IntSurf_In;
879 trans2 = IntSurf_Out;
880 }
881
882 IntSurf_LineOn2S LineOn2S;
883 Standard_Integer nbp,imin,imax,i;
884 nbp = PW.Line()->NbPoints();
885 Standard_Real u1,v1,u2,v2;
886 i=0;
887 do {
888 i++;
889 imin=i;
890 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
891 Pi.Parameters(u1,v1,u2,v2);
892 } while((i<nbp)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
893
894 if(imin>2)
895 imin--;
896
897 i=nbp+1;
898 do {
899 i--;
900 imax=i;
901 const IntSurf_PntOn2S& Pi = PW.Line()->Value(i);
902 Pi.Parameters(u1,v1,u2,v2);
903 } while((i>2)&&(Abs(u1-u2)<=1e-6 && Abs(v1-v2)<=1e-6));
904
905 if(imax<nbp)
906 imax++;
907
908 if(imin<imax) {
909 Handle_IntSurf_LineOn2S PWLine = new IntSurf_LineOn2S();
910 for(i=imin;i<=imax;i++)
911 PWLine->Add(PW.Line()->Value(i));
912
913 Standard_Real TolTang = TolTangency;
914 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PWLine,Standard_False,trans1,trans2);
915 const IntSurf_PntOn2S& POn2SDeb = wline->Point(1);
916 const IntSurf_PntOn2S& POn2SFin = wline->Point(wline->NbPnts());
917 if((POn2SDeb.Value()).Distance(POn2SFin.Value()) <= TolTangency) {
918 Standard_Real u1t,v1t,u2t,v2t;
919 POn2SDeb.Parameters(u1t,v1t,u2t,v2t);
920 IntPatch_Point vtx;
921 vtx.SetValue(POn2SDeb.Value(),TolTang,Standard_False);
922 vtx.SetParameters(u2t,v2t,u1t,v1t);
923 vtx.SetParameter(wline->NbPnts());
924 wline->SetPoint(wline->NbPnts(),vtx);
925 }
926
927 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf1,Standard_True,TolTang);
928
929 if(wline->NbVertex() == 0) {
930 IntPatch_Point vtx;
931 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
932 POn2S.Parameters(pu1,pv1,pu2,pv2);
933 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
934 vtx.SetParameters(pu1,pv1,pu2,pv2);
935 vtx.SetParameter(1);
936 wline->AddVertex(vtx);
937
938 POn2S = PW.Line()->Value(wline->NbPnts());
939 POn2S.Parameters(pu1,pv1,pu2,pv2);
940 vtx.SetValue(Point3dFin,TolTang,Standard_False);
941 vtx.SetParameters(pu1,pv1,pu2,pv2);
942 vtx.SetParameter(wline->NbPnts());
943 wline->AddVertex(vtx);
944 }
945
946 SLin.Append(wline);
947 empt = Standard_False;
948 }// imin<imax
949 }// !RejetLigne
950 }// PW.NbPoints()>2
951 }// done a True
952 }// dminiPointLigne > SeuildPointLigne
953 }// Abs || Abs
954 }// HasStartPoint
955 }// for ( pz ...
956 }// for( z ...
957}
958
959//==================================================================================
960// function : NewLine
961// purpose :
962//==================================================================================
963Handle_IntPatch_Line IntPatch_PrmPrmIntersection::NewLine (const Handle(Adaptor3d_HSurface)& Surf1,
964 const Handle(Adaptor3d_HSurface)& Surf2,
965 const Standard_Integer NumLine,
966 const Standard_Integer Low,
967 const Standard_Integer High,
968 const Standard_Integer NbPntsToInsert) const
969{
970 Standard_Integer NbPnts = NbPntsToInsert + High - Low;
971 if(NumLine>NbLines() || NumLine<1 || Low>=High )
972 Standard_OutOfRange::Raise(" IntPatch_PrmPrmIntersection NewLine ");
973 //------------------------------------------------------------------
974 //-- Indice : Low Low+1 I I+1 High --
975 //-- --
976 //-- Abs.Curv. : S(Low) S(I) S(I+1) S(High) --
977 //-- --
978 //-- On echantillonne a abcisse curviligne --
979 //-- constante. --
980 //-- L abcisse est calculee sur les params U1,V1 --
981 //------------------------------------------------------------------
982 TColStd_Array1OfReal U1(Low,High);
983 TColStd_Array1OfReal V1(Low,High);
984 TColStd_Array1OfReal U2(Low,High);
985 TColStd_Array1OfReal V2(Low,High);
986 TColStd_Array1OfReal AC(Low,High);
987
988 Standard_Real s,ds;
989 Handle(IntPatch_WLine) TheLine = Handle(IntPatch_WLine)::DownCast(Line(NumLine));
990 const IntSurf_PntOn2S& Point=TheLine->Point(Low);
991 Standard_Real u1,v1,u2,v2;
992 Point.Parameters(u1,v1,u2,v2);
993 U1(Low) = u1;
994 V1(Low) = v1;
995 U2(Low) = u2;
996 V2(Low) = v2;
997 AC(Low) =0.0;
998
999 IntPatch_ThePWalkingInter PW(Surf1,Surf2,0.000001,0.000001,0.001,0.001);
1000
1001 Standard_Integer i;
1002 for(i=Low+1; i<=High; i++)
1003 {
1004 const IntSurf_PntOn2S& Pointi=TheLine->Point(i);
1005 Pointi.Parameters(u1,v1,u2,v2);
1006 U1(i) = u1;
1007 V1(i) = v1;
1008 U2(i) = u2;
1009 V2(i) = v2;
1010
1011 Standard_Real du1=u1-U1(i-1);
1012 Standard_Real dv1=v1-V1(i-1);
1013
1014 AC(i) = AC(i-1) + Sqrt((du1*du1)+(dv1*dv1));
1015 }
1016
1017 Handle(IntSurf_LineOn2S) ResultPntOn2SLine = new IntSurf_LineOn2S();
1018
1019 IntSurf_PntOn2S StartPOn2S;
1020 TColStd_Array1OfReal StartParams(1,4);
1021
1022 ResultPntOn2SLine->Add(TheLine->Point(Low));
1023
1024 ds = AC(High) / (NbPnts-1);
1025 Standard_Integer Indice = Low;
1026
1027 Standard_Real dsmin = ds*0.3;
1028 Standard_Real smax = AC(High);
1029
1030 for(i=2,s=ds; (i<NbPnts)&&(s<smax); i++,s+=ds)
1031 {
1032 while(AC(Indice+1) <= s)
1033 {
1034 ResultPntOn2SLine->Add(TheLine->Point(Indice));
1035 Indice++;
1036 }
1037 Standard_Real a = s - AC(Indice);
1038 Standard_Real b = AC(Indice+1) - s;
1039 Standard_Real nab = 1.0/(a+b);
1040 //----------------------------------------------------------
1041 //-- Verification : Si Dist au prochain point < dsmin --
1042 //-- Si Dist au precedent point < dsmin --
1043 //-- --
1044 //----------------------------------------------------------
1045 if((nab > ds)&&(a>dsmin)&&(b>dsmin))
1046 {
1047 StartParams(1) = (U1(Indice) * b + U1(Indice+1) * a) * nab;
1048 StartParams(2) = (V1(Indice) * b + V1(Indice+1) * a) * nab;
1049 StartParams(3) = (U2(Indice) * b + U2(Indice+1) * a) * nab;
1050 StartParams(4) = (V2(Indice) * b + V2(Indice+1) * a) * nab;
1051
1052 Standard_Boolean HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1053 if(HasStartPoint)
1054 ResultPntOn2SLine->Add(StartPOn2S);
1055 }
1056 else
1057 s+=dsmin;
1058 }
1059
1060 ResultPntOn2SLine->Add(TheLine->Point(High));
1061
1062 return(new IntPatch_WLine(ResultPntOn2SLine,Standard_False));
1063}
1064
1065//==================================================================================
1066// function : SectionPointToParameters
1067// purpose :
1068//==================================================================================
1069void SectionPointToParameters(const Intf_SectionPoint& Sp,
1070 const IntPatch_Polyhedron& Poly1,
1071 const IntPatch_Polyhedron& Poly2,
1072 Standard_Real& u1,
1073 Standard_Real& v1,
1074 Standard_Real& u2,
1075 Standard_Real& v2)
1076{
1077 Intf_PIType typ;
1078 Standard_Integer Adr1,Adr2;
1079 Standard_Real Param,u,v;
1080 gp_Pnt P(Sp.Pnt());
1081
1082 Standard_Integer Pt1,Pt2,Pt3;
1083
1084 Sp.InfoFirst(typ,Adr1,Adr2,Param);
1085 switch(typ) {
1086 case Intf_VERTEX: //-- Adr1 est le numero du vertex
1087 {
1088 Poly1.Parameters(Adr1,u1,v1);
1089 break;
1090 }
1091 case Intf_EDGE:
1092 {
1093 Poly1.Parameters(Adr1,u1,v1);
1094 Poly1.Parameters(Adr2,u,v);
1095 u1+= Param * (u-u1);
1096 v1+= Param * (v-v1);
1097 break;
1098 }
1099 case Intf_FACE:
1100 {
1101 Standard_Real ua,va,ub,vb,uc,vc,ca,cb,cc,cabc;
1102 Poly1.Triangle(Adr1,Pt1,Pt2,Pt3);
1103 gp_Pnt PA(Poly1.Point(Pt1));
1104 gp_Pnt PB(Poly1.Point(Pt2));
1105 gp_Pnt PC(Poly1.Point(Pt3));
1106 Poly1.Parameters(Pt1,ua,va);
1107 Poly1.Parameters(Pt2,ub,vb);
1108 Poly1.Parameters(Pt3,uc,vc);
1109 gp_Vec Normale(gp_Vec(PA,PB).Crossed(gp_Vec(PA,PC)));
1110 cc = (gp_Vec(PA,PB).Crossed(gp_Vec(PA,P))).Dot(Normale);
1111 ca = (gp_Vec(PB,PC).Crossed(gp_Vec(PB,P))).Dot(Normale);
1112 cb = (gp_Vec(PC,PA).Crossed(gp_Vec(PC,P))).Dot(Normale);
1113 cabc = ca + cb + cc;
1114
1115 ca/=cabc; cb/=cabc; cc/=cabc;
1116
1117 u1 = ca * ua + cb * ub + cc * uc;
1118 v1 = ca * va + cb * vb + cc * vc;
1119 break;
1120 }
1121 default:
1122 {
1123 //-- cout<<" Default dans SectionPointToParameters "<<endl;
1124 break;
1125 }
1126 }
1127
1128
1129 Sp.InfoSecond(typ,Adr1,Adr2,Param);
1130 switch(typ) {
1131 case Intf_VERTEX: //-- Adr1 est le numero du vertex
1132 {
1133 Poly2.Parameters(Adr1,u2,v2);
1134 break;
1135 }
1136 case Intf_EDGE:
1137 {
1138 Poly2.Parameters(Adr1,u2,v2);
1139 Poly2.Parameters(Adr2,u,v);
1140 u2+= Param * (u-u2);
1141 v2+= Param * (v-v2);
1142 break;
1143 }
1144 case Intf_FACE:
1145 {
1146 Standard_Real ua,va,ub,vb,uc,vc,ca,cb,cc,cabc;
1147 Poly2.Triangle(Adr1,Pt1,Pt2,Pt3);
1148 gp_Pnt PA(Poly2.Point(Pt1));
1149 gp_Pnt PB(Poly2.Point(Pt2));
1150 gp_Pnt PC(Poly2.Point(Pt3));
1151 Poly2.Parameters(Pt1,ua,va);
1152 Poly2.Parameters(Pt2,ub,vb);
1153 Poly2.Parameters(Pt3,uc,vc);
1154 gp_Vec Normale(gp_Vec(PA,PB).Crossed(gp_Vec(PA,PC)));
1155 cc = (gp_Vec(PA,PB).Crossed(gp_Vec(PA,P))).Dot(Normale);
1156 ca = (gp_Vec(PB,PC).Crossed(gp_Vec(PB,P))).Dot(Normale);
1157 cb = (gp_Vec(PC,PA).Crossed(gp_Vec(PC,P))).Dot(Normale);
1158 cabc = ca + cb + cc;
1159
1160 ca/=cabc; cb/=cabc; cc/=cabc;
1161
1162 u2 = ca * ua + cb * ub + cc * uc;
1163 v2 = ca * va + cb * vb + cc * vc;
1164 break;
1165 }
1166 default:
1167 {
1168 //-- cout<<" Default dans SectionPointToParameters "<<endl;
1169 break;
1170 }
1171 }
1172}
1173
7fd59977 1174//==================================================================================
1175// function : RemplitLin
1176// purpose :
1177//==================================================================================
1178void IntPatch_PrmPrmIntersection::RemplitLin(const Standard_Integer x1,
1179 const Standard_Integer y1,
1180 const Standard_Integer z1,
1181 const Standard_Integer x2,
1182 const Standard_Integer y2,
1183 const Standard_Integer z2,
1184 IntPatch_PrmPrmIntersection_T3Bits& Map) const
1185{
1186 int xg,yg,zg;
1187 xg=x1-x2; if(xg<0) xg=-xg;
1188 yg=y1-y2; if(yg<0) yg=-yg;
1189 zg=z1-z2; if(zg<0) zg=-zg;
1190 if(DansGrille(x1) && DansGrille(y1) && DansGrille(z1)) {
1191 Standard_Integer t = GrilleInteger(x1,y1,z1);
1192 Map.Add(t);
1193 }
1194 if(xg<=1 && yg<=1 && zg<=1) return;
1195 xg = (x1+x2)>>1;
1196 yg = (y1+y2)>>1;
1197 zg = (z1+z2)>>1;
1198 RemplitLin(x1,y1,z1,xg,yg,zg,Map);
1199 RemplitLin(x2,y2,z2,xg,yg,zg,Map);
1200}
1201
1202//==================================================================================
1203// function : RemplitTri
1204// purpose :
1205//==================================================================================
1206void IntPatch_PrmPrmIntersection::RemplitTri(const Standard_Integer x1,
1207 const Standard_Integer y1,
1208 const Standard_Integer z1,
1209 const Standard_Integer x2,
1210 const Standard_Integer y2,
1211 const Standard_Integer z2,
1212 const Standard_Integer x3,
1213 const Standard_Integer y3,
1214 const Standard_Integer z3,
1215 IntPatch_PrmPrmIntersection_T3Bits& Map) const
1216{
1217 if(x1==x2 && x1==x3 && y1==y2 && y1==y3 && z1==z2 && z1==z3) {
1218 if(DansGrille(x1) && DansGrille(y1) && DansGrille(z1)) {
1219 Standard_Integer t = GrilleInteger(x1,y1,z1);
1220 Map.Add(t);
1221 }
1222 return;
1223 }
1224 else {
1225 Standard_Integer xg=(x1+x2+x3)/3;
1226 Standard_Integer yg=(y1+y2+y3)/3;
1227 Standard_Integer zg=(z1+z2+z3)/3;
1228 if(xg==x1 && yg==y1 && zg==z1) {
1229 RemplitLin(x1,y1,z1,x2,y2,z2,Map);
1230 RemplitLin(x1,y1,z1,x3,y3,z3,Map);
1231 return;
1232 }
1233 if(xg==x2 && yg==y2 && zg==z2) {
1234 RemplitLin(x2,y2,z2,x1,y1,z1,Map);
1235 RemplitLin(x2,y2,z2,x3,y3,z3,Map);
1236 return;
1237 }
1238 if(xg==x3 && yg==y3 && zg==z3) {
1239 RemplitLin(x3,y3,z3,x2,y2,z2,Map);
1240 RemplitLin(x3,y3,z3,x1,y1,z1,Map);
1241 return;
1242 }
1243 if(DansGrille(xg) && DansGrille(yg) && DansGrille(zg)) {
1244 Standard_Integer t = GrilleInteger(xg,yg,zg);
1245 Map.Add(t);
1246 }
1247 if(xg!=x3 || yg!=y3 || zg!=z3) RemplitTri(x1,y1,z1, x2,y2,z2, xg,yg,zg, Map);
1248 if(xg!=x1 || yg!=y1 || zg!=z1) RemplitTri(xg,yg,zg, x2,y2,z2, x3,y3,z3, Map);
1249 if(xg!=x2 || yg!=y2 || zg!=z2) RemplitTri(x1,y1,z1, xg,yg,zg, x3,y3,z3, Map);
1250 }
1251}
1252
1253//==================================================================================
1254// function : Remplit
1255// purpose :
1256//==================================================================================
1257void IntPatch_PrmPrmIntersection::Remplit(const Standard_Integer a,
1258 const Standard_Integer b,
1259 const Standard_Integer c,
1260 IntPatch_PrmPrmIntersection_T3Bits& Map) const
1261{
1262 int iax,iay,iaz,ibx,iby,ibz,icx,icy,icz;
1263 if(a!=-1) Map.Add(a);
1264 if(b!=-1) Map.Add(b);
1265 if(c!=-1) Map.Add(c);
1266
1267 if(a!=-1 && b!=-1 && c!=-1 ) {
1268 IntegerGrille(a,iax,iay,iaz);
1269 IntegerGrille(b,ibx,iby,ibz);
1270 IntegerGrille(c,icx,icy,icz);
1271 RemplitTri(iax,iay,iaz,ibx,iby,ibz,icx,icy,icz,Map);
1272 }
1273}
1274
7fd59977 1275
7fd59977 1276
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1277//=======================================================================
1278//function : Perform
1279//purpose :
1280//=======================================================================
1281void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
1282 const Handle(Adaptor3d_TopolTool)& D1,
1283 const Handle(Adaptor3d_HSurface)& Surf2,
1284 const Handle(Adaptor3d_TopolTool)& D2,
1285 const Standard_Real TolTangency,
1286 const Standard_Real Epsilon,
1287 const Standard_Real Deflection,
1288 const Standard_Real Increment,
1289 IntSurf_ListOfPntOn2S& LOfPnts,
1290 const Standard_Boolean RestrictLine)
1291{
1292 if (LOfPnts.IsEmpty()){
1293 done = Standard_True;
7fd59977 1294 return;
1295 }
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1296
1297 empt = Standard_True;
1298 SLin.Clear();
7fd59977 1299
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1300 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
1301 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
1302 Standard_Real U1,U2,V1,V2;
7fd59977 1303
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1304 UminLig1 = Surf1->FirstUParameter();
1305 VminLig1 = Surf1->FirstVParameter();
1306 UmaxLig1 = Surf1->LastUParameter();
1307 VmaxLig1 = Surf1->LastVParameter();
1308 UminLig2 = Surf2->FirstUParameter();
1309 VminLig2 = Surf2->FirstVParameter();
1310 UmaxLig2 = Surf2->LastUParameter();
1311 VmaxLig2 = Surf2->LastVParameter();
b1c5c4e6 1312
1313 Standard_Real Periods [4];
1314 Periods[0] = (Surf1->IsUPeriodic())? Surf1->UPeriod() : 0.;
1315 Periods[1] = (Surf1->IsVPeriodic())? Surf1->VPeriod() : 0.;
1316 Periods[2] = (Surf2->IsUPeriodic())? Surf2->UPeriod() : 0.;
1317 Periods[3] = (Surf2->IsVPeriodic())? Surf2->VPeriod() : 0.;
7fd59977 1318
c66d7156 1319 IntSurf_ListIteratorOfListOfPntOn2S IterLOP1(LOfPnts);
7fd59977 1320
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1321 for(; IterLOP1.More(); IterLOP1.Next()){
1322 IntSurf_PntOn2S Pnt = IterLOP1.Value();
1323 Pnt.Parameters(U1, V1, U2, V2);
1324 if(U1>UmaxLig1) UmaxLig1=U1;
1325 if(V1>VmaxLig1) VmaxLig1=V1;
1326 if(U2>UmaxLig2) UmaxLig2=U2;
1327 if(V2>VmaxLig2) VmaxLig2=V2;
1328
1329 if(U1<UminLig1) UminLig1=U1;
1330 if(V1<VminLig1) VminLig1=V1;
1331 if(U2<UminLig2) UminLig2=U2;
1332 if(V2<VminLig2) VminLig2=V2;
7fd59977 1333 }
7fd59977 1334
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1335 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
1336
302f96fb 1337 Standard_Integer NbLigCalculee = 0, ver;
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1338 Standard_Real pu1,pu2,pv1,pv2, dminiPointLigne;
1339 Standard_Boolean HasStartPoint,RejetLigne;
1340 IntSurf_PntOn2S StartPOn2S;
1341 gp_Pnt Point3dDebut,Point3dFin;
7fd59977 1342
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1343 TColStd_Array1OfReal StartParams(1,4);
1344 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
7fd59977 1345
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1346 IntSurf_ListIteratorOfListOfPntOn2S IterLOP2(LOfPnts);
1347 for(; IterLOP2.More(); IterLOP2.Next() ){
1348
1349 IntSurf_PntOn2S cPnt = IterLOP2.Value();
1350 cPnt.Parameters(U1, V1, U2, V2);
1351
1352 StartParams(1) = U1;
1353 StartParams(2) = V1;
1354 StartParams(3) = U2;
1355 StartParams(4) = V2;
1356
1357 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1358 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
1359 if(HasStartPoint) {
1360 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
1361 NbLigCalculee = SLin.Length();
1362 Standard_Integer l;
1363 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
a7dd5d0f 1364 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
1365
1366 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
1367 dminiPointLigne = 0.0;
1368 }
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1369 }// for( l ...
1370
1371 if(dminiPointLigne > SeuildPointLigne) {
1372 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
1373 if(PW.IsDone()) {
1374 if(PW.NbPoints()>2) {
1375 RejetLigne = Standard_False;
1376 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 1377 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
1378 Point3dFin = PointFin.Value();
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1379 for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
1380 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
a7dd5d0f 1381
1382 // Check end point if it is on existing line.
1383 // Start point is checked before.
1384 if (IsPointOnLine(PointFin, verwline, Deflection)) {
1385 RejetLigne = Standard_True;
1386 break;
1387 }
1388
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1389 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
1390 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
1391 if(Point3dDebut.Distance(verPointDebut.Value()) <= TolTangency) {
1392 if(Point3dFin.Distance(verPointFin.Value()) <= TolTangency)
1393 RejetLigne = Standard_True;
1394 }
1395 }
1396
1397 if(!RejetLigne) {
1398 IntSurf_TypeTrans trans1,trans2;
1399 Standard_Real locu,locv;
1400 gp_Vec norm1,norm2,d1u,d1v;
1401 gp_Pnt ptbid;
1402 Standard_Integer indextg;
1403 gp_Vec tgline(PW.TangentAtLine(indextg));
1404 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1405 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1406 norm1 = d1u.Crossed(d1v);
1407 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1408 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1409 norm2 = d1u.Crossed(d1v);
1410 if( tgline.DotCross(norm2,norm1) >= 0. ) {
1411 trans1 = IntSurf_Out;
1412 trans2 = IntSurf_In;
1413 }
1414 else {
1415 trans1 = IntSurf_In;
1416 trans2 = IntSurf_Out;
1417 }
1418
1419 Standard_Real TolTang = TolTangency;
1420 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1421 if (RestrictLine){
1422 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
1423 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
1424 }
1425
1426 if(wline->NbVertex() == 0) {
1427 IntPatch_Point vtx;
1428 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1429 POn2S.Parameters(pu1,pv1,pu2,pv2);
1430 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1431 vtx.SetParameters(pu1,pv1,pu2,pv2);
1432 vtx.SetParameter(1);
1433 wline->AddVertex(vtx);
1434
1435 POn2S = PW.Line()->Value(wline->NbPnts());
1436 POn2S.Parameters(pu1,pv1,pu2,pv2);
1437 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1438 vtx.SetParameters(pu1,pv1,pu2,pv2);
1439 vtx.SetParameter(wline->NbPnts());
1440 wline->AddVertex(vtx);
1441 }
7fd59977 1442
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1443 Standard_Integer slinlen = SLin.Length();
1444 if( slinlen > 0 ) {
1445 Standard_Integer cnbV = wline->NbVertex();
1446 Standard_Integer ciV;
1447 for( ciV = 1; ciV <= cnbV; ciV++ ) {
1448 Standard_Real pntDMin = 1.e+100;
1449 Standard_Integer VDMin = 0;
1450 Standard_Integer WLDMin = 0;
1451 gp_Pnt cPV = wline->Vertex(ciV).Value();
1452 Standard_Integer iL;
1453 for( iL = 1; iL <= slinlen; iL++) {
1454 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
1455 IntPatch_IType aType = aSLine->ArcType();
1456 if( aType != IntPatch_Walking)
1457 continue;
1458 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
1459 Standard_Integer tnbV = aWLine->NbVertex();
1460 Standard_Integer tiV;
1461 for( tiV = 1; tiV <= tnbV; tiV++ ) {
1462 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
1463 Standard_Real tDistance = cPV.Distance(tPV);
1464 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
1465 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
1466 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
1467 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
1468 Standard_Real RmaxS1 = Max(uRs1,vRs1);
1469 Standard_Real RmaxS2 = Max(uRs2,vRs2);
1470 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4) {
1471 if( pntDMin > tDistance && tDistance > 1.e-9) {
1472 pntDMin = tDistance;
1473 VDMin = tiV;
1474 WLDMin = iL;
1475 }
1476 }
1477 }
1478 }
1479
1480 if( VDMin != 0 ) {
1481 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
1482 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
1483 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
1484 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
1485 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
1486 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
1487 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
1488 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
1489
1490 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
1491 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
1492 Standard_Integer cNbP = wline->NbPnts();
1493
1494 TColStd_SequenceOfInteger VPold;
1495 Standard_Integer iPo;
1496 for( iPo = 1; iPo <= cnbV; iPo++ ) {
1497 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
1498 Standard_Integer IPo = (Standard_Integer) Po;
1499 VPold.Append(IPo);
1500 }
1501
1502 Standard_Boolean removeNext = Standard_False;
1503 Standard_Boolean removePrev = Standard_False;
1504 if( ciV == 1) {
1505 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
1506 if(dPar > 10) {
1507 removeNext = Standard_True;
1508 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1509 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1510 }
1511 }
1512 else if( ciV == cnbV) {
1513 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
1514 if(dPar > 10) {
1515 removePrev = Standard_True;
1516 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
1517 }
1518 }
1519 else {
1520 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
1521 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
1522 if(dParMi > 10) {
1523 removePrev = Standard_True;
1524 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
1525 }
1526 if(dParMa > 10) {
1527 removeNext = Standard_True;
1528 for( iPo = (ciV+1); iPo <= cnbV; iPo++ ) {
1529 if(dParMi > 10)
1530 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
1531 else
1532 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1533 }
1534 }
1535 else {
1536 if(dParMi > 10)
1537 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1538 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1539 }
1540 }
1541 Standard_Integer pI = (Standard_Integer) ciVpar;
1542
1543 Standard_Integer iP;
1544 for( iP = 1; iP <= cNbP; iP++) {
1545 if( pI == iP )
b1c5c4e6 1546 {
1547 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
1548 newL2s->Add(newPnt);
1549 }
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1550 else if(removeNext && iP == (pI + 1))
1551 continue;
1552 else if(removePrev && iP == (pI - 1))
1553 continue;
1554 else
1555 newL2s->Add(wline->Point(iP));
1556 }
1557
1558 IntPatch_Point newVtx;
1559 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
1560 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
1561 newVtx.SetParameters(u21,v21,u22,v22);
1562 newVtx.SetParameter(VPold.Value(ciV));
1563
1564 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
1565
1566 Standard_Integer iV;
1567 for( iV = 1; iV <= cnbV; iV++ ) {
1568 if( iV == ciV )
1569 NWLine->AddVertex(newVtx);
1570 else {
1571 IntPatch_Point theVtx = wline->Vertex(iV);
1572 theVtx.SetParameter(VPold.Value(iV));
1573 NWLine->AddVertex(theVtx);
1574 }
1575 }
1576
1577 wline = NWLine;
1578 }
1579 }
1580 }// SLin.Length > 0
1581
a7dd5d0f 1582 AddWLine(SLin, wline, Deflection);
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1583 empt = Standard_False;
1584 }// !RejetLigne
1585 }// PW points > 2
1586 }// done is True
1587 }// dminiPointLigne > SeuildPointLigne
1588 }// HasStartPoint
1589 }// for( IterLOP ...
1590 done = Standard_True;
1591 return;
1592}
1593//=======================================================================
1594//function : Perform
1595//purpose :
1596//=======================================================================
1597void IntPatch_PrmPrmIntersection::Perform(const Handle(Adaptor3d_HSurface)& Surf1,
1598 const Handle(Adaptor3d_TopolTool)& D1,
1599 const Handle(Adaptor3d_HSurface)& Surf2,
1600 const Handle(Adaptor3d_TopolTool)& D2,
1601 const Standard_Real U1Depart,
1602 const Standard_Real V1Depart,
1603 const Standard_Real U2Depart,
1604 const Standard_Real V2Depart,
1605 const Standard_Real TolTangency,
1606 const Standard_Real Epsilon,
1607 const Standard_Real Deflection,
1608 const Standard_Real Increment) {
1609
1610
1611
1612// Standard_Integer NbU1 = D1->NbSamplesU();
1613// Standard_Integer NbV1 = D1->NbSamplesV();
1614// Standard_Integer NbU2 = D2->NbSamplesU();
1615// Standard_Integer NbV2 = D2->NbSamplesV();
7fd59977 1616
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1617 //-- Traitement des Lignes de sections
1618 empt = Standard_True;
1619 done = Standard_True;
1620 SLin.Clear();
1621
1622 //------------------------------------------------------------
7fd59977 1623
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1624 Standard_Real pu1,pu2,pv1,pv2;
1625
1626 TColStd_Array1OfReal StartParams(1,4);
1627
1628// Standard_Integer MaxOscill = NbU1;
1629// if(MaxOscill < NbU2) MaxOscill=NbU2;
1630// if(MaxOscill < NbV1) MaxOscill=NbV1;
1631// if(MaxOscill < NbV2) MaxOscill=NbV2;
1632
1633// Standard_Real nIncrement=Increment;
1634// if(MaxOscill>10) {
1635// #ifdef DEB
1636// cout<<"\n IntPatch_PrmPrmIntersection.gxx : Increment:"<<Increment<<" -> "<<Increment/(0.5*MaxOscill)<<endl;
1637// #endif
1638// nIncrement/=0.5*MaxOscill;
1639// }
1640
1641 IntPatch_ThePWalkingInter PW(Surf1,Surf2,
1642 TolTangency,
1643 Epsilon,
1644 Deflection,
1645 Increment); //nIncrement);
1646
1647
1648 //Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
1649 //Standard_Real incidence;
1650 //Standard_Real dminiPointLigne;
1651
1652 Standard_Boolean HasStartPoint;//,RejetLigne;
1653
1654 IntSurf_PntOn2S StartPOn2S;
1655
1656 //Standard_Integer ver;
1657
1658 gp_Pnt Point3dDebut,Point3dFin;
1659
1660 //------------------------------------------------------------
1661
1662 StartParams(1) = U1Depart;
1663 StartParams(2) = V1Depart;
1664 StartParams(3) = U2Depart;
1665 StartParams(4) = V2Depart;
1666
1667 //-----------------------------------------------------------------------
1668 //-- Calcul du premier point de cheminement a partir du point approche --
1669 //-----------------------------------------------------------------------
1670 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1671 if(HasStartPoint) {
1672 //-------------------------------------------------
1673 //-- Un point a ete trouve --
1674 //-- On verifie qu il n appartient pas --
1675 //-- a une ligne de cheminement deja calculee. --
1676 //-------------------------------------------------
1677
1678 PW.Perform(StartParams);
1679 if(PW.IsDone()) {
1680
1681 Point3dDebut = PW.Value(1).Value();
1682 Point3dFin = PW.Value(PW.NbPoints()).Value();
7fd59977 1683
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1684 IntSurf_TypeTrans trans1,trans2;
1685 Standard_Real locu,locv;
1686 gp_Vec norm1,norm2,d1u,d1v;
1687 gp_Pnt ptbid;
1688 Standard_Integer indextg;
1689 gp_Vec tgline(PW.TangentAtLine(indextg));
1690 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1691 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1692 norm1 = d1u.Crossed(d1v);
1693 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1694 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1695 norm2 = d1u.Crossed(d1v);
1696 if (tgline.DotCross(norm2,norm1)>0.) {
1697 trans1 = IntSurf_Out;
1698 trans2 = IntSurf_In;
1699 }
1700 else {
1701 trans1 = IntSurf_In;
1702 trans2 = IntSurf_Out;
1703 }
1704
1705
1706
1707 Standard_Real TolTang = TolTangency;
1708 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1709 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
1710 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
1711
1712 //---------------
1713 if(wline->NbVertex() == 0) {
1714 IntPatch_Point vtx;
1715 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1716 POn2S.Parameters(pu1,pv1,pu2,pv2);
1717 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1718 vtx.SetParameters(pu1,pv1,pu2,pv2);
1719 vtx.SetParameter(1);
1720 wline->AddVertex(vtx);
1721
1722 POn2S = PW.Line()->Value(wline->NbPnts());
1723 POn2S.Parameters(pu1,pv1,pu2,pv2);
1724 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1725 vtx.SetParameters(pu1,pv1,pu2,pv2);
1726 vtx.SetParameter(wline->NbPnts());
1727 wline->AddVertex(vtx);
1728 }
1729
1730 //---------------
1731 SLin.Append(wline);
1732 empt = Standard_False;
1733
1734 }
1735 }
1736}
1737//==================================================================================
1738// function : AdjustOnPeriodic
1739// purpose :
1740//==================================================================================
1741void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
1742 const Handle(Adaptor3d_HSurface)& Surf2,
1743 IntPatch_SequenceOfLine& aSLin)
1744{
1745 Standard_Boolean bIsPeriodic[4], bModified, bIsNull, bIsPeriod;
1746 Standard_Integer i, j, k, aNbLines, aNbPx, aIndx, aIndq;
1747 Standard_Real aPeriod[4], dPeriod[4], ux[4], uq[4], aEps, du;
1748 //
1749 aEps=Precision::Confusion();
1750 //
1751 for (k=0; k<4; ++k) {
1752 aPeriod[k]=0.;
1753 }
1754 //
1755 bIsPeriodic[0]=Surf1->IsUPeriodic();
1756 bIsPeriodic[1]=Surf1->IsVPeriodic();
1757 bIsPeriodic[2]=Surf2->IsUPeriodic();
1758 bIsPeriodic[3]=Surf2->IsVPeriodic();
1759 //
1760 if (bIsPeriodic[0]){
1761 aPeriod[0]=Surf1->UPeriod();
1762 }
1763 if (bIsPeriodic[1]){
1764 aPeriod[1]=Surf1->VPeriod();
1765 }
1766 if (bIsPeriodic[2]){
1767 aPeriod[2]=Surf2->UPeriod();
1768 }
1769 if (bIsPeriodic[3]){
1770 aPeriod[3]=Surf2->VPeriod();
1771 }
1772 //
1773 for (k=0; k<4; ++k) {
1774 dPeriod[k]=0.25*aPeriod[k];
1775 }
1776 //
1777 aNbLines=aSLin.Length();
1778 for (i=1; i<=aNbLines; ++i) {
1779 Handle(IntPatch_WLine) aIL=Handle(IntPatch_WLine)::DownCast(aSLin.Value(i));
1780 Handle(IntSurf_LineOn2S) aL=aIL->Curve();
1781
1782 aNbPx=aL->NbPoints();
1783 if (aNbPx<10) {
1784 continue;
1785 }
1786 //
1787 for (j=0; j<2; ++j) {
1788 bModified=Standard_False;
1789 aIndx=1;
1790 aIndq=2;
1791 if (j) {
1792 aIndx=aNbPx;
1793 aIndq=aNbPx-1;
1794 }
1795 //
1796 const IntSurf_PntOn2S& aPSx=aL->Value(aIndx);
1797 const IntSurf_PntOn2S& aPSq=aL->Value(aIndq);
1798 //
1799 aPSx.Parameters(ux[0], ux[1], ux[2], ux[3]);
1800 aPSq.Parameters(uq[0], uq[1], uq[2], uq[3]);
1801 //
1802 for (k=0; k<4; ++k) {
1803 bIsNull=Standard_False;
1804 bIsPeriod=Standard_False;
1805 //
1806 if (!bIsPeriodic[k]) {
1807 continue;
1808 }
1809 //
1810 if (fabs(ux[k])<aEps) {
1811 bModified=Standard_True;
1812 bIsNull=Standard_True;
1813 }
1814 //
1815 else if (fabs(ux[k]-aPeriod[k])<aEps) {
1816 bModified=Standard_True;
1817 bIsPeriod=Standard_True;
1818 }
1819 //
1820 if (bModified) {
1821 du=fabs(ux[k]-uq[k]);
1822 if (du > dPeriod[k]) {
1823 if(bIsNull){
1824 ux[k]=aPeriod[k];
1825 }
1826 if(bIsPeriod) {
1827 ux[k]=0.;
1828 }
1829 }
1830 }
1831 }//for (k=0; k<4; ++k)
1832 if (bModified) {
1833 IntSurf_PntOn2S aPntOn2S;
1834 //
1835 aPntOn2S=aPSx;
1836 aPntOn2S.SetValue(ux[0], ux[1], ux[2], ux[3]);
1837 aL->Value(aIndx, aPntOn2S);
1838 }
1839 }//for (j=0; j<1; ++j) {
1840 }//for (i=1; i<=aNbLines; ++i)
1841}
b1c5c4e6 1842
1843//==================================================================================
1844// function : MakeNewPoint
1845// purpose :
1846//==================================================================================
1847IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
1848 const IntSurf_PntOn2S& oldPnt,
1849 const Standard_Real* Periods)
1850{
1851 IntSurf_PntOn2S NewPoint;
1852 NewPoint.SetValue(replacePnt.Value());
1853
1854 Standard_Real OldParams[4], NewParams[4];
1855 oldPnt.Parameters(OldParams[0], OldParams[1], OldParams[2], OldParams[3]);
1856 replacePnt.Parameters(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
1857
1858 Standard_Integer i;
1859 for (i = 0; i < 4; i++)
1860 if (Periods[i] != 0.)
1861 {
1862 if (Abs(NewParams[i] - OldParams[i]) >= 0.5*Periods[i])
1863 {
1864 if (NewParams[i] < OldParams[i])
1865 NewParams[i] += Periods[i];
1866 else
1867 NewParams[i] -= Periods[i];
1868 }
1869 }
1870
1871 NewPoint.SetValue(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
1872 return NewPoint;
1873}
1874
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1875//==================================================================================
1876// function : Perform
1877// purpose : base SS Int. function
1878//==================================================================================
1879void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
1880 const Handle(Adaptor3d_TopolTool)& D1,
1881 const Handle(Adaptor3d_HSurface)& Surf2,
1882 const Handle(Adaptor3d_TopolTool)& D2,
1883 const Standard_Real TolTangency,
1884 const Standard_Real Epsilon,
1885 const Standard_Real Deflection,
1886 const Standard_Real Increment,
1887 const Standard_Boolean ClearFlag)
1888{
1889 Standard_Integer NbU1, NbV1, NbU2, NbV2, Limit;
1890 //
1891 D1->SamplePnts(Deflection, 10, 10);
1892 D2->SamplePnts(Deflection, 10, 10);
1893 //
1894 NbU1 = D1->NbSamplesU();
1895 NbV1 = D1->NbSamplesV();
1896 NbU2 = D2->NbSamplesU();
1897 NbV2 = D2->NbSamplesV();
1898 TColStd_Array1OfReal anUpars1(1, NbU1), aVpars1(1, NbV1);
1899 TColStd_Array1OfReal anUpars2(1, NbU2), aVpars2(1, NbV2);
1900 //
1901 D1->UParameters(anUpars1);
1902 D1->VParameters(aVpars1);
1903 D2->UParameters(anUpars2);
1904 D2->VParameters(aVpars2);
b1c5c4e6 1905
1906 Standard_Real Periods [4];
1907 Periods[0] = (Surf1->IsUPeriodic())? Surf1->UPeriod() : 0.;
1908 Periods[1] = (Surf1->IsVPeriodic())? Surf1->VPeriod() : 0.;
1909 Periods[2] = (Surf2->IsUPeriodic())? Surf2->UPeriod() : 0.;
1910 Periods[3] = (Surf2->IsVPeriodic())? Surf2->VPeriod() : 0.;
1911
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1912 //---------------------------------------------
1913 Limit = 2500;
1914 if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit)) {
1915 empt = Standard_True;
1916 if (ClearFlag){
1917 SLin.Clear();
1918 }
1919 //
1920 IntPolyh_Intersection* pInterference = NULL;
1921
1922 if ( D1->IsUniformSampling() || D2->IsUniformSampling() ) {
1923 pInterference = new IntPolyh_Intersection(Surf1,NbU1,NbV1,Surf2,NbU2,NbV2);
1924 }
1925 else {
1926 pInterference = new IntPolyh_Intersection(Surf1, anUpars1, aVpars1,
1927 Surf2, anUpars2, aVpars2 );
1928 }
1929 if ( !pInterference ) {
1930 done = Standard_False;
1931 return;
1932 }
1933 //
1934 IntPolyh_Intersection& Interference = *pInterference;
1935 //
1936 done = Interference.IsDone();
1937 if( !done ) {
1938 if (pInterference) {
1939 delete pInterference;
1940 pInterference = NULL;
1941 }
1942 return;
1943 }
1944
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1945 Standard_Integer nbLigSec = Interference.NbSectionLines();
1946 Standard_Integer nbTanZon = Interference.NbTangentZones();
1947 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
1948
302f96fb 1949 Standard_Integer NbLigCalculee = 0, ver;
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1950 Standard_Real U1,U2,V1,V2, pu1,pu2,pv1,pv2, incidence, dminiPointLigne;
1951 Standard_Boolean HasStartPoint,RejetLigne;
1952 IntSurf_PntOn2S StartPOn2S;
1953 gp_Pnt Point3dDebut,Point3dFin;
1954
1955 TColStd_Array1OfReal StartParams(1,4);
1956 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
1957
1958 if(nbLigSec>=1) {
1959 Standard_Integer *TabL = new Standard_Integer [nbLigSec+1];
1960 Standard_Integer ls;
1961 for(ls=1; ls<=nbLigSec; ++ls){
1962 TabL[ls]=ls;
1963 }
1964 //----------------------------------------1.1
1965 Standard_Boolean triok;
1966 do {
1967 Standard_Integer b, nb_B, nb_A, tyu;
1968 //
1969 triok=Standard_True;
1970 for( b = 2; b <= nbLigSec; ++b ) {
1971 nb_B = Interference.NbPointsInLine(TabL[b]);
1972 nb_A = Interference.NbPointsInLine(TabL[b-1]);
1973 if( nb_B > nb_A ) {
1974 tyu=TabL[b];
1975 TabL[b]=TabL[b-1];
1976 TabL[b-1]=tyu;
1977 triok=Standard_False;
1978 }
1979 }
1980 } while(triok==Standard_False);
1981 //----------------------------------------
1982 // 1.2 For the line "ls" get 2D-bounds U,V for surfaces 1,2
1983 //
1984 for( ls = 1; ls <= nbLigSec; ++ls) {
1985 Standard_Integer nbp, ilig, *TabPtDep;
1986 //
1987 nbp = Interference.NbPointsInLine(TabL[ls]);
7fd59977 1988 if (!nbp) {
1989 continue;
1990 }
7fd59977 1991 //
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1992 TabPtDep = new Standard_Integer [nbp+1];
1993 for( ilig = 1; ilig <= nbp; ++ilig ) {
7fd59977 1994 TabPtDep[ilig]=0;
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1995 }
1996 //
7fd59977 1997 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
1998 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
1999 Standard_Real _x,_y,_z;
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2000 //
2001 Interference.GetLinePoint(TabL[ls], 1,
2002 _x,_y,_z,
2003 UminLig1, VminLig1, UminLig2, VminLig2,
2004 incidence);
7fd59977 2005
2006 UmaxLig1=UminLig1;
2007 VmaxLig1=VminLig1;
2008 UmaxLig2=UminLig2;
2009 VmaxLig2=VminLig2;
c66d7156 2010 //
7fd59977 2011 for( ilig = 2; ilig <= nbp; ilig++ ) {
2012 Interference.GetLinePoint(TabL[ls],ilig,_x,_y,_z,U1,V1,U2,V2,incidence);
c66d7156 2013 //
7fd59977 2014 if(U1>UmaxLig1) UmaxLig1=U1;
2015 if(V1>VmaxLig1) VmaxLig1=V1;
2016 if(U2>UmaxLig2) UmaxLig2=U2;
2017 if(V2>VmaxLig2) VmaxLig2=V2;
c66d7156 2018 //
7fd59977 2019 if(U1<UminLig1) UminLig1=U1;
2020 if(V1<VminLig1) VminLig1=V1;
2021 if(U2<UminLig2) UminLig2=U2;
2022 if(V2<VminLig2) VminLig2=V2;
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2023 }//for( ilig = 2; ilig <= nbp; ilig++ ) {
2024 //
2025 //----------------------------------------
2026 // 1.3
7fd59977 2027 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
2028 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
2029 Standard_Boolean lignetrouvee=Standard_False;
2030 const Standard_Integer NbDePointsDeDepartDuChmLimit = 5;
2031 //
2032 do {
2033 NombreDePointsDeDepartDuCheminement++;
2034 switch (NombreDePointsDeDepartDuCheminement) {
2035 case 1:
2036 nbps2 = (nbp > 1) ? nbp/2 : 1;
2037 if(nbp<3)
2038 NombreDePointsDeDepartDuCheminement = NbDePointsDeDepartDuChmLimit;
2039 break;
2040 case 2:
2041 nbps2 = 1;
2042 break;
2043 case 3:
2044 nbps2 = nbp-1;
2045 break;
2046 case 4:
2047 nbps2 = 3 * nbp / 4;
2048 break;
2049 case 5:
2050 nbps2 = nbp / 4;
2051 break;
2052 default:
2053 nbps2 = NombreDePointsDeDepartDuCheminement-3;
2054 NombreDePointsDeDepartDuCheminement++;
2055 }
2056 //
2057 if(TabPtDep[nbps2] == 0) {
2058 TabPtDep[nbps2] = 1;
2059 Interference.GetLinePoint(TabL[ls],nbps2,_x,_y,_z,U1,V1,U2,V2,incidence);
2060
2061 StartParams(1) = U1;
2062 StartParams(2) = V1;
2063 StartParams(3) = U2;
2064 StartParams(4) = V2;
2065
2066 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2067 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2068 if(HasStartPoint) {
2069 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2070 NbLigCalculee = SLin.Length();
2071 Standard_Integer l;
2072 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++) {
a7dd5d0f 2073 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2074
2075 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
2076 dminiPointLigne = 0.0;
2077 }
7fd59977 2078 }// for( l ...
2079
2080 if(dminiPointLigne > SeuildPointLigne) {
2081 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
c66d7156 2082 //
7fd59977 2083 Standard_Boolean bPWIsDone;
2084 Standard_Integer iPWNbPoints, aNbPointsVer;
2085 Standard_Real aD11, aD12, aD21, aD22, aDx;
2086 //
2087 bPWIsDone=PW.IsDone();
7fd59977 2088 if(bPWIsDone) {
2089 iPWNbPoints=PW.NbPoints();
2090 //
2091 if( iPWNbPoints > 2 ) {
2092 RejetLigne = Standard_False;
2093 Point3dDebut = PW.Value(1).Value();
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2094 Point3dFin = PW.Value(iPWNbPoints).Value();
2095 for( ver = 1; (!RejetLigne) && (ver<= NbLigCalculee); ++ver) {
7fd59977 2096 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2097 //
2098 aNbPointsVer=verwline->NbPnts();
2099 if (aNbPointsVer<3) {
2100 continue;
2101 }
2102 //
2103 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2104 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2105 //xf
2106 const gp_Pnt& aP21=verPointDebut.Value();
2107 const gp_Pnt& aP22=verPointFin.Value();
2108 //
2109 aD11=Point3dDebut.Distance(aP21);
2110 aD12=Point3dDebut.Distance(aP22);
2111 aD21=Point3dFin.Distance(aP21);
2112 aD22=Point3dFin.Distance(aP22);
2113 //
2114 if((aD11<=TolTangency && aD22<=TolTangency) ||
2115 (aD12<=TolTangency && aD21<=TolTangency)) {
2116 Standard_Integer m, mx;
2117 //
2118 mx=aNbPointsVer/2;
2119 if (aNbPointsVer%2) {
2120 ++mx;
2121 }
2122 //
2123 const gp_Pnt& aPx=verwline->Point(mx).Value();
2124 for(m=1; m<iPWNbPoints; ++m){
2125 const gp_Pnt& aP1=PW.Value(m).Value();
2126 const gp_Pnt& aP2=PW.Value(m+1).Value();
2127 gp_Vec aVec12(aP1, aP2);
2128 if (aVec12.SquareMagnitude()<1.e-20){
2129 continue;
2130 }
2131 //
2132 gp_Dir aDir12(aVec12);
2133 gp_Lin aLin12(aP1, aDir12);
2134 aDx=aLin12.Distance(aPx);
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2135 //modified by NIZNHY-PKV Tue May 10 11:08:07 2011f
2136 if (aDx<=2.*Epsilon) {
2137 //if (aDx<=TolTangency) {
2138 //modified by NIZNHY-PKV Tue May 10 11:08:13 2011t
7fd59977 2139 RejetLigne = Standard_True;
2140 break;
2141 }
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2142 }//for(m=1; m<iPWNbPoints; ++m){
2143 }//if((aD11<=TolTangency && aD22<=TolTangency) ||...
2144 }// for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
7fd59977 2145 //
2146 if(!RejetLigne) {
2147 IntSurf_TypeTrans trans1,trans2;
2148 Standard_Real locu,locv;
2149 gp_Vec norm1,norm2,d1u,d1v;
2150 gp_Pnt ptbid;
2151 Standard_Integer indextg;
2152 gp_Vec tgline(PW.TangentAtLine(indextg));
2153 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2154 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2155 norm1 = d1u.Crossed(d1v);
2156 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2157 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2158 norm2 = d1u.Crossed(d1v);
2159 if( tgline.DotCross(norm2,norm1) >= 0. ) {
2160 trans1 = IntSurf_Out;
2161 trans2 = IntSurf_In;
2162 }
2163 else {
2164 trans1 = IntSurf_In;
2165 trans2 = IntSurf_Out;
2166 }
2167
2168 Standard_Real TolTang = TolTangency;
2169 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2170 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2171 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2172
2173 if(wline->NbVertex() == 0) {
2174 IntPatch_Point vtx;
2175 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2176 POn2S.Parameters(pu1,pv1,pu2,pv2);
2177 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2178 vtx.SetParameters(pu1,pv1,pu2,pv2);
2179 vtx.SetParameter(1);
2180 wline->AddVertex(vtx);
2181
2182 POn2S = PW.Line()->Value(wline->NbPnts());
2183 POn2S.Parameters(pu1,pv1,pu2,pv2);
2184 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2185 vtx.SetParameters(pu1,pv1,pu2,pv2);
2186 vtx.SetParameter(wline->NbPnts());
2187 wline->AddVertex(vtx);
2188 }
2189
2190 lignetrouvee = Standard_True;
2191
2192 Standard_Integer slinlen = SLin.Length();
2193 if( slinlen > 0 ) {
2194 Standard_Integer cnbV = wline->NbVertex();
2195 Standard_Integer ciV;
2196 for( ciV = 1; ciV <= cnbV; ciV++ ) {
2197 Standard_Real pntDMin = 1.e+100;
2198 Standard_Integer VDMin = 0;
2199 Standard_Integer WLDMin = 0;
2200 gp_Pnt cPV = wline->Vertex(ciV).Value();
2201 Standard_Integer iL;
2202 for( iL = 1; iL <= slinlen; iL++) {
2203 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
2204 IntPatch_IType aType = aSLine->ArcType();
2205 if( aType != IntPatch_Walking)
2206 continue;
2207 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
2208 Standard_Integer tnbV = aWLine->NbVertex();
2209 Standard_Integer tiV;
2210 for( tiV = 1; tiV <= tnbV; tiV++ ) {
2211 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
2212 Standard_Real tDistance = cPV.Distance(tPV);
2213 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
2214 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
2215 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
2216 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
2217 Standard_Real RmaxS1 = Max(uRs1,vRs1);
2218 Standard_Real RmaxS2 = Max(uRs2,vRs2);
2219 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4) {
2220 if( pntDMin > tDistance && tDistance > 1.e-9) {
2221 pntDMin = tDistance;
2222 VDMin = tiV;
2223 WLDMin = iL;
2224 }
2225 }
2226 }
2227 }
2228
2229 if( VDMin != 0 ) {
2230 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
2231 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
2232 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
2233 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
2234 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
2235 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
2236 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
2237 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
2238
2239 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
2240 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
2241 Standard_Integer cNbP = wline->NbPnts();
2242
2243 TColStd_SequenceOfInteger VPold;
2244 Standard_Integer iPo;
2245 for( iPo = 1; iPo <= cnbV; iPo++ ) {
2246 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
2247 Standard_Integer IPo = (Standard_Integer) Po;
2248 VPold.Append(IPo);
2249 }
2250
2251 Standard_Boolean removeNext = Standard_False;
2252 Standard_Boolean removePrev = Standard_False;
2253 if( ciV == 1) {
2254 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2255 if(dPar > 10) {
2256 removeNext = Standard_True;
2257 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2258 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2259 }
2260 }
2261 else if( ciV == cnbV) {
2262 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2263 if(dPar > 10) {
2264 removePrev = Standard_True;
2265 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2266 }
2267 }
2268 else {
2269 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2270 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2271 if(dParMi > 10) {
2272 removePrev = Standard_True;
2273 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2274 }
2275 if(dParMa > 10) {
2276 removeNext = Standard_True;
2277 for( iPo = (ciV+1); iPo <= cnbV; iPo++ ) {
2278 if(dParMi > 10)
2279 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
2280 else
2281 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2282 }
2283 }
2284 else {
2285 if(dParMi > 10)
2286 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2287 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2288 }
2289 }
2290 Standard_Integer pI = (Standard_Integer) ciVpar;
2291
2292 Standard_Integer iP;
2293 for( iP = 1; iP <= cNbP; iP++) {
2294 if( pI == iP )
b1c5c4e6 2295 {
2296 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
2297 newL2s->Add(newPnt);
2298 }
7fd59977 2299 else if(removeNext && iP == (pI + 1))
2300 continue;
2301 else if(removePrev && iP == (pI - 1))
2302 continue;
2303 else
2304 newL2s->Add(wline->Point(iP));
2305 }
2306
2307 IntPatch_Point newVtx;
2308 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
2309 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
2310 newVtx.SetParameters(u21,v21,u22,v22);
2311 newVtx.SetParameter(VPold.Value(ciV));
2312
2313 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
2314
2315 Standard_Integer iV;
2316 for( iV = 1; iV <= cnbV; iV++ ) {
2317 if( iV == ciV )
2318 NWLine->AddVertex(newVtx);
2319 else {
2320 IntPatch_Point theVtx = wline->Vertex(iV);
2321 theVtx.SetParameter(VPold.Value(iV));
2322 NWLine->AddVertex(theVtx);
2323 }
2324 }
2325
2326 wline = NWLine;
2327 }
2328 }
2329 }// SLin.Length > 0
2330
a7dd5d0f 2331 AddWLine(SLin, wline, Deflection);
7fd59977 2332 empt = Standard_False;
2333 }// !RejetLigne
2334 }// PW points > 2
2335 }// done is True
2336 }// dminiPointLigne > SeuildPointLigne
2337 }// HasStartPoint
2338 }// if TabPtDep[nbps2] == 0
2339 } while(nbp>5 && !( (NombreDePointsDeDepartDuCheminement >= NbDePointsDeDepartDuChmLimit && lignetrouvee) ||
2340 (NombreDePointsDeDepartDuCheminement-3 >= nbp && (!lignetrouvee))));
2341 delete [] TabPtDep;
2342 }// for( ls ...
2343
2344 delete [] TabL;
2345
2346 }// if nbLigSec >= 1
2347 //
2348 AdjustOnPeriodic(Surf1, Surf2, SLin);
2349 //
2350
2351 //--------------------------------------------------------------------
2352 //-- Calcul des parametres approches a partir des Zones De Tangence --
2353 //--------------------------------------------------------------------
2354 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2355 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
2356
2357 UminLig1=VminLig1=UminLig2=VminLig2=RealLast();
2358 UmaxLig1=VmaxLig1=UmaxLig2=VmaxLig2=-UminLig1;
2359
2360 // NbPointsInTangentZone always == 1 (eap)
2361
2362 Standard_Integer z;
2363 for( z=1; z <= nbTanZon; z++) {
2364 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2365 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
2366 Standard_Integer pz=1;
2367 Standard_Real _x,_y,_z;
2368 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2369
2370 if(U1>UmaxLig1) UmaxLig1=U1;
2371 if(V1>VmaxLig1) VmaxLig1=V1;
2372 if(U2>UmaxLig2) UmaxLig2=U2;
2373 if(V2>VmaxLig2) VmaxLig2=V2;
2374
2375 if(U1<UminLig1) UminLig1=U1;
2376 if(V1<VminLig1) VminLig1=V1;
2377 if(U2<UminLig2) UminLig2=U2;
2378 if(V2<VminLig2) VminLig2=V2;
2379 //}
2380 }
2381 for(z=1; z <= nbTanZon; z++) {
2382
2383 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2384 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
2385 Standard_Integer pz=1;
2386 Standard_Real _x,_y,_z;
2387 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2388
2389 StartParams(1) = U1;
2390 StartParams(2) = V1;
2391 StartParams(3) = U2;
2392 StartParams(4) = V2;
2393
2394 //-----------------------------------------------------------------------
2395 //-- Calcul du premier point de cheminement a partir du point approche --
2396 //-----------------------------------------------------------------------
2397 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2398 if(HasStartPoint) {
2399 //-------------------------------------------------
2400 //-- Un point a ete trouve --
2401 //-- On verifie qu il n appartient pas --
2402 //-- a une ligne de cheminement deja calculee. --
2403 //-------------------------------------------------
2404 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2405
2406 NbLigCalculee = SLin.Length();
2407 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2408
2409 for(Standard_Integer l=1;
2410 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2411 l++) {
a7dd5d0f 2412 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
7fd59977 2413
a7dd5d0f 2414 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
2415 dminiPointLigne = 0.0;
2416 }
2417 }
7fd59977 2418
2419 //-- Fin d exploration des lignes
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2420 if(dminiPointLigne > SeuildPointLigne) {
2421 //---------------------------------------------------
2422 //-- Le point de depart du nouveau cheminement --
2423 //-- n est present dans aucune ligne deja calculee.--
2424 //---------------------------------------------------
2425 PW.Perform(StartParams,
2426 UminLig1,VminLig1,UminLig2,VminLig2,
2427 UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
2428 if(PW.IsDone()) {
2429 if(PW.NbPoints()>2) {
2430 //-----------------------------------------------
2431 //-- Verification a posteriori :
2432 //-- On teste si le point de depart et de fin de
2433 //-- la ligne de cheminement est present dans une
2434 //-- autre ligne .
2435 //-----------------------------------------------
2436 RejetLigne = Standard_False;
2437 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 2438 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2439 Point3dFin = PointFin.Value();
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2440
2441 for(ver=1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
2442 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2443 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
a7dd5d0f 2444
2445 // Check end point if it is on existing line.
2446 // Start point is checked before.
2447 if (IsPointOnLine(PointFin, verwline, Deflection)) {
2448 RejetLigne = Standard_True;
2449 break;
2450 }
2451
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2452 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2453 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2454 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency) {
2455 RejetLigne = Standard_True;
2456 }
2457 else {
2458 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency) {
2459 RejetLigne = Standard_True;
2460 }
2461 }
2462 }
2463
2464 if(!RejetLigne) {
7fd59977 2465
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2466 IntSurf_TypeTrans trans1,trans2;
2467 Standard_Real locu,locv;
2468 gp_Vec norm1,norm2,d1u,d1v;
2469 gp_Pnt ptbid;
2470 Standard_Integer indextg;
2471 gp_Vec tgline(PW.TangentAtLine(indextg));
2472 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2473 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2474 norm1 = d1u.Crossed(d1v);
2475 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2476 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2477 norm2 = d1u.Crossed(d1v);
2478 if (tgline.DotCross(norm2,norm1)>0.) {
2479 trans1 = IntSurf_Out;
2480 trans2 = IntSurf_In;
2481 }
2482 else {
2483 trans1 = IntSurf_In;
2484 trans2 = IntSurf_Out;
2485 }
2486
2487
2488
2489 Standard_Real TolTang = TolTangency;
2490 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2491 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2492 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2493
2494 //---------------
2495 if(wline->NbVertex() == 0) {
2496 IntPatch_Point vtx;
2497 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2498 POn2S.Parameters(pu1,pv1,pu2,pv2);
2499 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2500 vtx.SetParameters(pu1,pv1,pu2,pv2);
2501 vtx.SetParameter(1);
2502 wline->AddVertex(vtx);
2503
2504 POn2S = PW.Line()->Value(wline->NbPnts());
2505 POn2S.Parameters(pu1,pv1,pu2,pv2);
2506 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2507 vtx.SetParameters(pu1,pv1,pu2,pv2);
2508 vtx.SetParameter(wline->NbPnts());
2509 wline->AddVertex(vtx);
2510 }
2511
2512 //---------------
a7dd5d0f 2513 AddWLine(SLin, wline, Deflection);
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2514 empt = Standard_False;
2515
2516 }
2517 else {
2518 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2519 }
2520 //------------------------------------------------------------
2521 }
2522 } //-- le cheminement a reussi (done a True)
2523 } //-- le point approche ne renvoie pas sur une ligne existante
2524 } //-- Si HasStartPoint
2525 //} //-- Boucle Sur les Points de la Tangent Zone
2526 } //-- Boucle sur Les Tangent Zones
7fd59977 2527
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2528 if ( pInterference ) {
2529 delete pInterference;
2530 pInterference = NULL;
2531 }
2532 return;
2533 }// if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit)) {
2534
2535 Handle(IntSurf_LineOn2S) LOn2S = new IntSurf_LineOn2S();
2536 PointDepart( LOn2S, Surf1, NbU1, NbV1, Surf2, NbU2, NbV2 );
7fd59977 2537 empt = Standard_True;
2538 done = Standard_True;
2539 SLin.Clear();
2540
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2541 Standard_Integer NbLigCalculee = 0;
2542 Standard_Real U1,U2,V1,V2;
7fd59977 2543 Standard_Real pu1,pu2,pv1,pv2;
2544
2545 TColStd_Array1OfReal StartParams(1,4);
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2546 Standard_Integer MaxOscill = NbU1;
2547 if(MaxOscill < NbU2) MaxOscill=NbU2;
2548 if(MaxOscill < NbV1) MaxOscill=NbV1;
2549 if(MaxOscill < NbV2) MaxOscill=NbV2;
7fd59977 2550
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2551 Standard_Real nIncrement=Increment;
2552 //if(MaxOscill>10)
2553 //nIncrement/=0.5*MaxOscill;
2554
2555 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,nIncrement);
2556 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
2557 Standard_Real dminiPointLigne;
2558 Standard_Boolean HasStartPoint,RejetLigne;
7fd59977 2559 IntSurf_PntOn2S StartPOn2S;
c66d7156 2560 Standard_Integer ver;
7fd59977 2561 gp_Pnt Point3dDebut,Point3dFin;
c66d7156 2562
7fd59977 2563 //------------------------------------------------------------
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2564 //-- Calcul des parametres approches a partir des Zones De Tangence --
2565 //--------------------------------------------------------------------
2566 Standard_Integer nbTanZon = LOn2S->NbPoints();
2567 for(Standard_Integer z=1; z <= nbTanZon; z++) {
2568 const IntSurf_PntOn2S& POn2S = LOn2S->Value(z);
2569 POn2S.Parameters(U1,V1,U2,V2);
2570 StartParams(1) = U1;
2571 StartParams(2) = V1;
2572 StartParams(3) = U2;
2573 StartParams(4) = V2;
7fd59977 2574
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2575 //-----------------------------------------------------------------------
2576 //-- Calcul du premier point de cheminement a partir du point approche --
2577 //-----------------------------------------------------------------------
2578 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2579 if(HasStartPoint) {
2580 //-------------------------------------------------
2581 //-- Un point a ete trouve --
2582 //-- On verifie qu il n appartient pas --
2583 //-- a une ligne de cheminement deja calculee. --
2584 //-------------------------------------------------
2585 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
7fd59977 2586
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2587 NbLigCalculee = SLin.Length();
2588 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
7fd59977 2589
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2590 for(Standard_Integer l=1;
2591 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2592 l++) {
a7dd5d0f 2593 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2594
2595 if (IsPointOnLine(StartPOn2S, testwline, Deflection)) {
2596 dminiPointLigne = 0.0;
2597 }
7fd59977 2598 }
a7dd5d0f 2599
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2600 //-- Fin d exploration des lignes
2601 if(dminiPointLigne > SeuildPointLigne) {
2602 //---------------------------------------------------
2603 //-- Le point de depart du nouveau cheminement --
2604 //-- n est present dans aucune ligne deja calculee.--
2605 //---------------------------------------------------
2606 PW.Perform(StartParams);
2607 if(PW.IsDone()) {
2608 if(PW.NbPoints()>2) {
2609 //-----------------------------------------------
2610 //-- Verification a posteriori :
2611 //-- On teste si le point de depart et de fin de
2612 //-- la ligne de cheminement est present dans une
2613 //-- autre ligne .
2614 //-----------------------------------------------
2615 RejetLigne = Standard_False;
2616 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 2617 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2618 Point3dFin = PointFin.Value();
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2619
2620 for(ver=1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
2621 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2622 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
a7dd5d0f 2623
2624 // Check end point if it is on existing line.
2625 // Start point is checked before.
2626 if (IsPointOnLine(PointFin, verwline, Deflection)) {
2627 RejetLigne = Standard_True;
2628 break;
2629 }
2630
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P
2631 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2632 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2633 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency) {
2634 RejetLigne = Standard_True;
2635 }
2636 else {
2637 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency) {
2638 RejetLigne = Standard_True;
2639 }
2640 }
2641 }
2642
2643 if(!RejetLigne) {
2644
2645 IntSurf_TypeTrans trans1,trans2;
2646 Standard_Real locu,locv;
2647 gp_Vec norm1,norm2,d1u,d1v;
2648 gp_Pnt ptbid;
2649 Standard_Integer indextg;
2650 gp_Vec tgline(PW.TangentAtLine(indextg));
2651 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2652 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2653 norm1 = d1u.Crossed(d1v);
2654 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2655 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2656 norm2 = d1u.Crossed(d1v);
2657 if (tgline.DotCross(norm2,norm1)>0.) {
2658 trans1 = IntSurf_Out;
2659 trans2 = IntSurf_In;
2660 }
2661 else {
2662 trans1 = IntSurf_In;
2663 trans2 = IntSurf_Out;
2664 }
2665
2666
2667
2668 Standard_Real TolTang = TolTangency;
2669 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2670 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2671 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2672
2673 //---------------
2674 if(wline->NbVertex() == 0) {
2675 IntPatch_Point vtx;
2676 const IntSurf_PntOn2S& POn2Sf = PW.Line()->Value(1);
2677 POn2Sf.Parameters(pu1,pv1,pu2,pv2);
2678 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2679 vtx.SetParameters(pu1,pv1,pu2,pv2);
2680 vtx.SetParameter(1);
2681 wline->AddVertex(vtx);
2682
2683 const IntSurf_PntOn2S& POn2Sl = PW.Line()->Value(wline->NbPnts());
2684 POn2Sl.Parameters(pu1,pv1,pu2,pv2);
2685 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2686 vtx.SetParameters(pu1,pv1,pu2,pv2);
2687 vtx.SetParameter(wline->NbPnts());
2688 wline->AddVertex(vtx);
2689 }
2690
2691 //---------------
a7dd5d0f 2692 AddWLine(SLin, wline, Deflection);
c66d7156
P
2693 empt = Standard_False;
2694
2695 }
2696 else {
2697 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2698 }
2699 //------------------------------------------------------------
2700 }
2701 } //-- le cheminement a reussi (done a True)
2702 } //-- le point approche ne renvoie pas sur une ligne existante
2703 } //-- Si HasStartPoint
2704 } //-- Boucle sur Les Tangent Zones
2705
7fd59977 2706}
c66d7156
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2707//modified by NIZNHY-PKV Wed May 25 09:39:07 2011f
2708//=======================================================================
2709//class : IntPatch_InfoPD
2710//purpose :
2711//=======================================================================
2712class IntPatch_InfoPD {
2713 public:
2714 //----------------------------------------C-tor
2715 IntPatch_InfoPD(const Standard_Integer aNBI) {
2716 Standard_Integer aNBI2, i, j;
2717 myNBI=aNBI;
2718 //
2719 aNBI2=aNBI*aNBI;
2720 myP1DS2=new char[aNBI2];
2721 myP2DS1=new char[aNBI2];
2722 myIP1=new Standard_Integer[aNBI2];
2723 myIP2=new Standard_Integer[aNBI2];
2724 myP1=new gp_Pnt[aNBI2];
2725 myP2=new gp_Pnt[aNBI2];
2726 //
2727 for (i=0; i<myNBI; ++i) {
2728 for (j=0; j<myNBI; ++j) {
2729 xP1DS2(i, j)=0;
2730 xP2DS1(i, j)=0;
2731 xIP1(i, j)=0;
2732 xIP2(i, j)=0;
2733 xP1(i, j).SetCoord(0., 0., 0.);
2734 xP2(i, j).SetCoord(0., 0., 0.);
2735 }
2736 }
2737 };
2738 //---------------------------------------- D-tor
2739 ~IntPatch_InfoPD() {
2740 delete [] (char*) myP1DS2;
2741 delete [] (char*) myP2DS1;
2742 delete [] (Standard_Integer*) myIP1;
2743 delete [] (Standard_Integer*) myIP2;
2744 delete [] (gp_Pnt*)myP1;
2745 delete [] (gp_Pnt*)myP2;
2746 };
2747 //---------------------------------------- Index
2748 Standard_Integer Index(const Standard_Integer i,
2749 const Standard_Integer j) const {
2750 return i*myNBI+j;
2751 };
2752 //---------------------------------------- NBI
2753 Standard_Integer NBI() const {
2754 return myNBI;
2755 };
2756 //----------------------------------------xP1DS2
2757 char& xP1DS2(const Standard_Integer i,
2758 const Standard_Integer j) {
2759 return myP1DS2[Index(i,j)];
2760 };
2761 //----------------------------------------xP2DS1
2762 char& xP2DS1(const Standard_Integer i,
2763 const Standard_Integer j) {
2764 return myP2DS1[Index(i,j)];
2765 };
2766 //----------------------------------------xIP1
2767 Standard_Integer& xIP1(const Standard_Integer i,
2768 const Standard_Integer j) {
2769 return myIP1[Index(i,j)];
2770 };
2771 //----------------------------------------xIP2
2772 Standard_Integer& xIP2(const Standard_Integer i,
2773 const Standard_Integer j) {
2774 return myIP2[Index(i,j)];
2775 };
2776 //----------------------------------------xP1
2777 gp_Pnt& xP1(const Standard_Integer i,
2778 const Standard_Integer j) {
2779 return myP1[Index(i,j)];
2780 };
2781 //----------------------------------------xP1
2782 gp_Pnt& xP2(const Standard_Integer i,
2783 const Standard_Integer j) {
2784 return myP2[Index(i,j)];
2785 };
2786 protected:
2787 Standard_Integer myNBI;
2788 char *myP1DS2;
2789 char *myP2DS1;
2790 Standard_Integer *myIP1;
2791 Standard_Integer *myIP2;
2792 gp_Pnt *myP1;
2793 gp_Pnt *myP2;
2794};
2795//modified by NIZNHY-PKV Tue May 24 11:38:55 2011t
7fd59977 2796//==================================================================================
c66d7156 2797// function : PointDepart
7fd59977 2798// purpose :
2799//==================================================================================
c66d7156
P
2800void IntPatch_PrmPrmIntersection::PointDepart(Handle(IntSurf_LineOn2S)& LineOn2S,
2801 const Handle(Adaptor3d_HSurface)& S1,
2802 const Standard_Integer SU_1,
2803 const Standard_Integer SV_1,
2804 const Handle(Adaptor3d_HSurface)& S2,
2805 const Standard_Integer SU_2,
2806 const Standard_Integer SV_2) const
2807{
2808 Standard_Integer i, j, xNBI;
2809 //modified by NIZNHY-PKV Tue May 24 11:37:38 2011f
2810 xNBI=200;
2811 IntPatch_InfoPD aIPD(xNBI);
2812 //modified by NIZNHY-PKV Wed May 25 06:47:12 2011t
2813 Standard_Integer iC15, SU1, SV1, SU2, SV2;
2814 Standard_Real U0, U1, V0, V1, U, V;
96a95605 2815 Standard_Real resu0,resv0;
c66d7156
P
2816 Standard_Real du1,du2,dv1,dv2, dmaxOn1, dmaxOn2;
2817 Standard_Real x0,y0,z0, x1,y1,z1,d;
2818 Bnd_Box Box1, Box2;
7fd59977 2819 //
c66d7156
P
2820 iC15=15;
2821 SU1 =iC15*SU_1 ;
2822 SV1 =iC15*SV_1 ;
2823 SU2 =iC15*SU_2 ;
2824 SV2 =iC15*SV_2 ;
7fd59977 2825 //
c66d7156
P
2826 if(xNBI<SU1) {
2827 SU1 = xNBI;
2828 }
2829 if(xNBI<SV1){
2830 SV1 = xNBI;
2831 }
2832 if(xNBI<SU2){
2833 SU2 = xNBI;
2834 }
2835 if(xNBI<SV2){
2836 SV2 = xNBI;
2837 }
2838 //
2839 U0 = S1->FirstUParameter();
2840 U1 = S1->LastUParameter();
2841 V0 = S1->FirstVParameter();
2842 V1 = S1->LastVParameter();
2843 //
2844 resu0=U0;
c66d7156
P
2845 resv0=V0;
2846 //
2847 dmaxOn1 = 0.0;
2848 dmaxOn2 = 0.0;
2849 //-----
2850 du1 = (U1-U0)/(SU1-1);
2851 dv1 = (V1-V0)/(SV1-1);
2852 for(U=U0,i=0; i<SU1; i++,U+=du1) {
2853 for(V=V0,j=0; j<SV1; V+=dv1,j++) {
2854 aIPD.xP1(i, j)= S1->Value(U,V);
2855 Box1.Add(aIPD.xP1(i, j));
2856 if(i>0 && j>0) {
2857 aIPD.xP1(i, j) .Coord(x0,y0,z0);
2858 aIPD.xP1(i-1, j-1).Coord(x1,y1,z1);
2859 //
2860 d=Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
2861 if(d>dmaxOn1) {
2862 dmaxOn1 = d;
2863 }
2864 }
2865 }
2866 }
2867 Box1.Enlarge(1.e-8);
2868 //
2869 U0 = S2->FirstUParameter();
2870 U1 = S2->LastUParameter();
2871 V0 = S2->FirstVParameter();
2872 V1 = S2->LastVParameter();
2873 //
2874 du2 = (U1-U0)/(SU2-1);
2875 dv2 = (V1-V0)/(SV2-1);
2876 for(U=U0,i=0; i<SU2; i++,U+=du2) {
2877 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
2878 aIPD.xP2(i, j) = S2->Value(U,V);
2879 Box2.Add(aIPD.xP2(i, j));
2880 if(i>0 && j>0) {
2881 aIPD.xP2(i, j) .Coord(x0,y0,z0);
2882 aIPD.xP2(i-1, j-1).Coord(x1,y1,z1);
2883 d = Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
2884 if(d>dmaxOn2) {
2885 dmaxOn2 = d;
2886 }
2887 }
2888 }
2889 }
2890 Box2.Enlarge(1.e-8);
2891 //--------
2892 //
2893 if(Box1.IsOut(Box2)) {
2894
2895 return;
2896 }
2897 //
2898 Standard_Integer aNbPG;
2899 Standard_Real x10,y10,z10,x11,y11,z11;
2900 Standard_Real x20,y20,z20,x21,y21,z21;
2901 Standard_Real dx, dy, dz, dmax;
2902 Standard_Real dx2, dy2, dz2;
2903 //
2904 Box1.Get(x10,y10,z10,x11,y11,z11);
2905 Box2.Get(x20,y20,z20,x21,y21,z21);
2906 //
2907 x0 = (x10>x20)? x10 : x20;
2908 y0 = (y10>y20)? y10 : y20;
2909 z0 = (z10>z20)? z10 : z20;
2910 //
2911 x1 = (x11<x21)? x11 : x21;
2912 y1 = (y11<y21)? y11 : y21;
2913 z1 = (z11<z21)? z11 : z21;
2914 //
2915 if(dmaxOn2 > dmaxOn1) {
2916 dmaxOn1 = dmaxOn2;
7fd59977 2917 }
2918 //
c66d7156
P
2919 dmaxOn1+=dmaxOn1;
2920 x0-=dmaxOn1;
2921 y0-=dmaxOn1;
2922 z0-=dmaxOn1;
2923 x1+=dmaxOn1;
2924 y1+=dmaxOn1;
2925 z1+=dmaxOn1;
2926 //
2927 x10-=dmaxOn1; y10-=dmaxOn1; z10-=dmaxOn1;
2928 x11+=dmaxOn1; y11+=dmaxOn1; z11+=dmaxOn1;
2929
2930 x20-=dmaxOn1; y20-=dmaxOn1; z20-=dmaxOn1;
2931 x21+=dmaxOn1; y21+=dmaxOn1; z21+=dmaxOn1;
2932
2933 aNbPG=NbPointsGrille();
2934 dx = (x1-x0)/aNbPG;
2935 dy = (y1-y0)/aNbPG;
2936 dz = (z1-z0)/aNbPG;
7fd59977 2937 //
c66d7156
P
2938 dmax = dx;
2939 if(dy>dmax) {
2940 dmax = dy;
7fd59977 2941 }
c66d7156
P
2942 if(dz>dmax){
2943 dmax = dz;
7fd59977 2944 }
c66d7156
P
2945 //
2946 if(dx<dmax*0.01) {
2947 dx = dmax*0.01;
7fd59977 2948 }
c66d7156
P
2949 if(dy<dmax*0.01) {
2950 dy = dmax*0.01;
2951 }
2952 if(dz<dmax*0.01) {
2953 dz = dmax*0.01;
7fd59977 2954 }
2955 //
c66d7156
P
2956 dx2 = dx*0.5;
2957 dy2 = dy*0.5;
2958 dz2 = dz*0.5 ;
2959 //
2960 IntPatch_PrmPrmIntersection_T3Bits M1(_BASE);
2961 IntPatch_PrmPrmIntersection_T3Bits M2(_BASE);
2962 //
2963 for(i=0;i<SU1;i++) {
2964 for(j=0;j<SV1;j++) {
2965 aIPD.xIP1(i, j)=-1;
2966 const gp_Pnt& P=aIPD.xP1(i, j);
8263fcd3 2967 aIPD.xP1DS2(i, j) = (char)CodeReject(x20,y20,z20,x21,y21,z21,P.X(),P.Y(),P.Z());
c66d7156
P
2968 int ix = (int)((P.X()-x0 + dx2 )/dx);
2969 if(DansGrille(ix)) {
2970 int iy = (int)((P.Y()-y0 + dy2)/dy);
2971 if(DansGrille(iy)) {
2972 int iz = (int)((P.Z()-z0 + dz2)/dz);
2973 if(DansGrille(iz)) {
2974 aIPD.xIP1(i, j) = GrilleInteger(ix,iy,iz);
2975 }
2976 }
2977 }
2978 }
2979 }
2980 //-- cout<<" Grille du 1 fini "<<endl;
2981 for(i=0;i<SU2;i++) {
2982 for(j=0;j<SV2;j++) {
2983 aIPD.xIP2(i, j)=-1;
2984 const gp_Pnt& P=aIPD.xP2(i, j);
8263fcd3 2985 aIPD.xP2DS1(i, j) = (char)CodeReject(x10,y10,z10,x11,y11,z11,P.X(),P.Y(),P.Z());
c66d7156
P
2986 int ix = (int)((P.X()-x0 + dx2)/dx);
2987 if(DansGrille(ix)) {
2988 int iy = (int)((P.Y()-y0 + dy2)/dy);
2989 if(DansGrille(iy)) {
2990 int iz = (int)((P.Z()-z0 + dz2)/dz);
2991 if(DansGrille(iz)) {
2992 aIPD.xIP2(i, j) = GrilleInteger(ix,iy,iz);
2993 }
2994 }
2995 }
2996 }
7fd59977 2997 }
2998 //
c66d7156
P
2999 for(i=0;i<SU1-1;i+=1) {
3000 for(j=0;j<SV1-1;j+=1) {
3001 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j)) ||
3002 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))){
3003 Remplit(aIPD.xIP1(i, j),
3004 aIPD.xIP1(i+1, j),
3005 aIPD.xIP1(i+1, j+1),
3006 M1);
3007 }
3008 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i, j+1)) ||
3009 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))) {
3010 Remplit(aIPD.xIP1(i, j),
3011 aIPD.xIP1(i, j+1),
3012 aIPD.xIP1(i+1, j+1),
3013 M1);
3014 }
7fd59977 3015 }
c66d7156
P
3016 }
3017 //
3018 for(i=0;i<SU2-1;i+=1) {
3019 for(j=0;j<SV2-1;j+=1) {
3020 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j)) ||
3021 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3022 Remplit(aIPD.xIP2(i, j),
3023 aIPD.xIP2(i+1, j),
3024 aIPD.xIP2(i+1, j+1),
3025 M2);
3026 }
3027 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i, j+1)) ||
3028 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3029 Remplit(aIPD.xIP2(i, j),
3030 aIPD.xIP2(i, j+1),
3031 aIPD.xIP2(i+1, j+1),
3032 M2);
3033 }
3034 }
3035 }
3036 //
3037 M1.ResetAnd();
3038 M2.ResetAnd();
3039 //
3040 int newind=0;
3041 long unsigned Compt=0;
3042 int ok=0;
3043 int indicepointtraite = 0;
3044 Standard_Integer k,nu,nv;
3045 //
3046 do {
3047 indicepointtraite--;
3048 ok = M1.And(M2,newind);
3049 if(ok) {
3050 IntegerGrille(newind,i,j,k);
3051 int nb=0;
3052 int LIM=3;
3053 if( DansGrille(i-1) && DansGrille(j-1) && DansGrille(k-1)
3054 && DansGrille(i+1) && DansGrille(j+1) && DansGrille(k+1)) {
3055 int si,sj,sk;
3056 for(si=-1; si<= 1 && nb<LIM; si++) {
3057 for(sj=-1; sj<= 1 && nb<LIM; sj++) {
3058 for(sk=-1; sk<= 1 && nb<LIM; sk++) {
3059 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3060 if(M1.Val(lu) && M2.Val(lu)) {
3061 nb++;
3062 }
3063 }
3064 }
3065 }
3066 if(nb>=LIM) {
3067 for(si=-1; si<= 1; si++) {
3068 for(sj=-1; sj<= 1; sj++) {
3069 for(sk=-1; sk<= 1; sk++) {
3070 if(si || sj || sk) {
3071 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3072 M1.Raz(lu);
3073 }
3074 }
3075 }
3076 }
3077 }
7fd59977 3078 }
3079 //
c66d7156 3080 gp_Pnt P(dx*i + x0, dy*j + y0, dz*k+z0);
7fd59977 3081 //
c66d7156
P
3082 Standard_Integer nu1=-1,nu2=-1;
3083 Standard_Integer nv1=0, nv2=0;
3084 int nbsur1 = 0;
3085 for(nu=0;nu1<0 && nu<SU1;nu++) {
3086 for(nv=0;nu1<0 && nv<SV1;nv++) {
3087 if( aIPD.xIP1(nu, nv) ==(Standard_Integer) newind ) {
3088 nbsur1++;
3089 aIPD.xIP1(nu, nv)=indicepointtraite;
3090 nu1=nu; nv1=nv;
3091 }
7fd59977 3092 }
c66d7156
P
3093 }
3094 if(nu1>=0) {
3095 int nbsur2 = 0;
3096 for(nu=0;nu2<0 && nu<SU2;nu++) {
3097 for(nv=0;nu2<0 && nv<SV2;nv++) {
3098 if( aIPD.xIP2(nu, nv)==(Standard_Integer) newind ) {
3099 nbsur2++;
3100 aIPD.xIP2(nu, nv)=indicepointtraite;
3101 nu2=nu; nv2=nv;
3102 }
3103 }
7fd59977 3104 }
c66d7156
P
3105 }
3106 if(nu1>=0 && nu2>=0) {
3107 IntSurf_PntOn2S POn2S;
3108 POn2S.SetValue(P,
3109 S1->FirstUParameter()+nu1*du1,
3110 S1->FirstVParameter()+nv1*dv1,
3111 S2->FirstUParameter()+nu2*du2,
3112 S2->FirstVParameter()+nv2*dv2);
3113 LineOn2S->Add(POn2S);
3114 Compt++;
3115 }
3116 else {
3117 //-- aucun point du triangle n a ete trouve assez proche
3118 //-- on recherche les 3 points les plus proches de P
3119 //-- dans chacun des tableaux
d20d815b 3120 Standard_Real Dist3[3],u3[3] = { 0.0, 0.0, 0.0 },v3[3] = { 0.0, 0.0, 0.0 };
c66d7156
P
3121 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3122 for(U=resu0,i=0; i<SU1; i++,U+=du1) {
3123 for(V=resv0,j=0; j<SV1; V+=dv1,j++) {
3124 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3125 Standard_Real t = aIPD.xP1(i, j).SquareDistance(P);
3126 //-- On remplace la plus grande valeur ds Dist[.] par la val courante
3127 if(Dist3[0]<Dist3[1]) {
3128 Standard_Real z;
3129 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3130 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3131 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3132 }
3133 if(Dist3[1]<Dist3[2]) {
3134 Standard_Real z;
3135 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3136 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3137 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3138 }
3139 if(Dist3[0]<Dist3[1]) {
3140 Standard_Real z;
3141 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3142 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3143 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3144 }
3145 //-- la plus grande valeur est dans Dist3[0]
3146 if(t<Dist3[0]) {
3147 Dist3[0]=t; u3[0]=U; v3[0]=V;
3148 }
3149 }
7fd59977 3150 }
3151 //
c66d7156
P
3152 Standard_Real U1_3 = (u3[0]+u3[1]+u3[2])/3.0;
3153 Standard_Real V1_3 = (v3[0]+v3[1]+v3[2])/3.0;
3154
3155 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3156 for(U=U0,i=0; i<SU2; i++,U+=du2) {
3157 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
3158 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3159 Standard_Real t = aIPD.xP2(i, j).SquareDistance(P);
3160 //-- On remplace la plus grande valeur ds Dist3[.] par la val courante
3161 if(Dist3[0]<Dist3[1]) {
3162 Standard_Real z;
3163 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3164 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3165 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
7fd59977 3166 }
c66d7156
P
3167 if(Dist3[1]<Dist3[2]) {
3168 Standard_Real z;
3169 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3170 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3171 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3172 }
3173 if(Dist3[0]<Dist3[1]) {
3174 Standard_Real z;
3175 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3176 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3177 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3178 }
3179 //-- la plus grande valeur est dans Dist3[0]
3180 if(t<Dist3[0]) {
3181 Dist3[0]=t; u3[0]=U; v3[0]=V;
7fd59977 3182 }
3183 }
3184 }
7fd59977 3185 //
c66d7156
P
3186 Standard_Real U2_3 = (u3[0]+u3[1]+u3[2])/3.0;
3187 Standard_Real V2_3 = (v3[0]+v3[1]+v3[2])/3.0;
3188 //
3189 IntSurf_PntOn2S POn2S;
3190 POn2S.SetValue(P,U1_3,V1_3,U2_3,V2_3);
3191 LineOn2S->Add(POn2S);
3192 Compt++;
7fd59977 3193 }
c66d7156
P
3194 }
3195 }
3196 while(ok);
7fd59977 3197}
a7dd5d0f 3198
3199//==================================================================================
3200// function : IsPointOnLine
3201// purpose :
3202//==================================================================================
3203
3204Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S &thePOn2S,
3205 const Handle(IntPatch_WLine) &theWLine,
3206 const Standard_Real Deflection)
3207{
3208 Standard_Boolean isOnLine = Standard_False;
3209 Standard_Real Deflection2 = Deflection*Deflection;
3210 Standard_Real pu1, pu2, pv1, pv2;
3211
3212 thePOn2S.Parameters(pu1, pv1, pu2, pv2);
3213
3214 if ((theWLine->IsOutSurf1Box(gp_Pnt2d(pu1, pv1)) == Standard_False) &&
3215 (theWLine->IsOutSurf2Box(gp_Pnt2d(pu2, pv2)) == Standard_False) &&
3216 (theWLine->IsOutBox(thePOn2S.Value()) == Standard_False)) {
3217 const Standard_Integer NbPntOn2SOnLine = theWLine->NbPnts();
3218 Standard_Integer ll;
3219
3220 for (ll=1; ll < NbPntOn2SOnLine && !isOnLine; ll++) {
3221 const gp_Pnt &Pa = theWLine->Point(ll).Value();
3222 const gp_Pnt &Pb = theWLine->Point(ll+1).Value();
3223 const gp_Pnt &PStart = thePOn2S.Value();
3224 const gp_Vec AM(Pa, PStart);
3225 const gp_Vec MB(PStart,Pb);
3226 const Standard_Real AMMB = AM.Dot(MB);
3227
3228 if(AMMB > 0.0) {
3229 gp_Dir ABN(Pb.X() - Pa.X(), Pb.Y() - Pa.Y(), Pb.Z() - Pa.Z());
3230 Standard_Real lan = ABN.X()*AM.X() + ABN.Y()*AM.Y() + ABN.Z()*AM.Z();
3231 gp_Vec AH(lan*ABN.X(), lan*ABN.Y(), lan*ABN.Z());
3232 gp_Vec HM(AM.X() - AH.X(), AM.Y() - AH.Y(), AM.Z() - AH.Z());
3233 Standard_Real d = 0.0;
3234
3235 if(HM.X() < Deflection) {
3236 d += HM.X()*HM.X();
3237
3238 if(HM.Y() < Deflection) {
3239 d += HM.Y()*HM.Y();
3240
3241 if(HM.Z() < Deflection) {
3242 d += HM.Z()*HM.Z();
3243 } else {
3244 d = Deflection2;
3245 }
3246 } else {
3247 d = Deflection2;
3248 }
3249 } else {
3250 d = Deflection2;
3251 }
3252
3253 if(d < Deflection2) {
3254 isOnLine = Standard_True;
3255 }
3256 } else {
3257 Standard_Real dab = Pa.SquareDistance(Pb);
3258 Standard_Real dap = Pa.SquareDistance(PStart);
3259
3260 if(dap < dab) {
3261 isOnLine = Standard_True;
3262 } else {
3263 Standard_Real dbp = Pb.SquareDistance(PStart);
3264
3265 if(dbp < dab) {
3266 isOnLine = Standard_True;
3267 }
3268 }
3269 }
3270 }
3271 }
3272
3273 return isOnLine;
3274}
3275
3276//==================================================================================
3277// function : AddWLine
3278// purpose :
3279//==================================================================================
3280
3281void AddWLine(IntPatch_SequenceOfLine &theLines,
3282 const Handle(IntPatch_WLine) &theWLine,
3283 const Standard_Real Deflection)
3284{
3285 Standard_Integer i = 1;
3286 Standard_Integer aNbLines = theLines.Length();
3287 Standard_Boolean isToRemove;
3288
3289 // Check each line of theLines if it is on theWLine.
3290 while (i <= aNbLines) {
3291 Handle(IntPatch_WLine) aWLine =
3292 Handle(IntPatch_WLine)::DownCast(theLines.Value(i));
3293
3294 isToRemove = Standard_False;
3295
3296 if (aWLine.IsNull() == Standard_False) {
3297 // Check the middle point.
3298 Standard_Integer aMidIndex = (aWLine->NbPnts() + 1)/2;
3299
3300 if (aMidIndex > 0) {
3301 const IntSurf_PntOn2S &aPnt = aWLine->Point(aMidIndex);
3302
3303 if (IsPointOnLine(aPnt, theWLine, Deflection)) {
3304 // Middle point is on theWLine. Check vertices.
3305 isToRemove = Standard_True;
3306
3307 Standard_Integer j;
3308 const Standard_Integer aNbVtx = aWLine->NbVertex();
3309
3310 for (j = 1; j <= aNbVtx; j++) {
3311 const IntPatch_Point &aPoint = aWLine->Vertex(j);
3312
3313 if (!IsPointOnLine(aPoint.PntOn2S(), theWLine, Deflection)) {
3314 isToRemove = Standard_False;
3315 break;
3316 }
3317 }
3318 }
3319 }
3320 }
3321
3322 if (isToRemove) {
3323 theLines.Remove(i);
3324 aNbLines--;
3325 } else {
3326 i++;
3327 }
3328 }
3329
3330 // Add theWLine to the sequence of lines.
3331 theLines.Append(theWLine);
3332}