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0024472: Wrong section curves
[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,
00302ba4 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);
7fd59977 52
53
54static
00302ba4 55void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
56 const Handle(Adaptor3d_HSurface)& Surf2,
57 IntPatch_SequenceOfLine& aSLin);
7fd59977 58
b1c5c4e6 59static
00302ba4 60IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
61 const IntSurf_PntOn2S& oldPnt,
62 const Standard_Real* Periods);
b1c5c4e6 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,
00302ba4 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)
7fd59977 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,
00302ba4 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)
7fd59977 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,
00302ba4 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)
7fd59977 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,
00302ba4 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)
7fd59977 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 );
00302ba4 163
7fd59977 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++) {
00302ba4 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 }
7fd59977 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++)
00302ba4 204 TabPtDep[ilig]=0;
7fd59977 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++ ) {
00302ba4 217 SectionPointToParameters(LineSec.GetPoint(ilig),Poly1,Poly2,U1,V1,U2,V2);
7fd59977 218
00302ba4 219 if(U1>UmaxLig1) UmaxLig1=U1;
220 if(V1>VmaxLig1) VmaxLig1=V1;
221 if(U2>UmaxLig2) UmaxLig2=U2;
222 if(V2>VmaxLig2) VmaxLig2=V2;
7fd59977 223
00302ba4 224 if(U1<UminLig1) UminLig1=U1;
225 if(V1<VminLig1) VminLig1=V1;
226 if(U2<UminLig2) UminLig2=U2;
227 if(V2<VminLig2) VminLig2=V2;
7fd59977 228 }
00302ba4 229
7fd59977 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 {
00302ba4 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++) {
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 }
00302ba4 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();
00302ba4 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);
00302ba4 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);
00302ba4 382 empt = Standard_False;
383 }// !RejetLigne
384 }// PW.NbPoints()>2
385 }// done is True
386 }// dminiPointLigne > SeuildPointLigne
387 }// HasStartPoint
388 }// TabPtDep[nbps2]==0
7fd59977 389 } while( nbp>5 && ( !( ( (NombreDePointsDeDepartDuCheminement >= 3) && lignetrouvee ) ||
00302ba4 390 ( (NombreDePointsDeDepartDuCheminement-3>=nbp) && !lignetrouvee ) ) ) );
7fd59977 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;
00302ba4 400
7fd59977 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;
00302ba4 414
7fd59977 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;
00302ba4 432
7fd59977 433 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
434 if(HasStartPoint) {
00302ba4 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++) {
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 }
00302ba4 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();
00302ba4 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
00302ba4 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 }
7fd59977 518
a7dd5d0f 519 AddWLine(SLin, wline, Deflection);
00302ba4 520 empt = Standard_False;
521 }// if !RejetLigne
522 }// PW.NbPoints()>2
523 }// done is True
524 }// dminiPointLigne > SeuildPointLigne
7fd59977 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,
00302ba4 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)
7fd59977 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);
00302ba4 558
7fd59977 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 {
00302ba4 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++) {
638 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
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
7fd59977 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) {
00302ba4 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++) {
807 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
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
7fd59977 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,
00302ba4 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
7fd59977 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;
00302ba4 998
7fd59977 999 IntPatch_ThePWalkingInter PW(Surf1,Surf2,0.000001,0.000001,0.001,0.001);
00302ba4 1000
7fd59977 1001 Standard_Integer i;
1002 for(i=Low+1; i<=High; i++)
00302ba4 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 }
7fd59977 1016
1017 Handle(IntSurf_LineOn2S) ResultPntOn2SLine = new IntSurf_LineOn2S();
00302ba4 1018
7fd59977 1019 IntSurf_PntOn2S StartPOn2S;
1020 TColStd_Array1OfReal StartParams(1,4);
00302ba4 1021
7fd59977 1022 ResultPntOn2SLine->Add(TheLine->Point(Low));
00302ba4 1023
7fd59977 1024 ds = AC(High) / (NbPnts-1);
1025 Standard_Integer Indice = Low;
00302ba4 1026
7fd59977 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)
00302ba4 1031 {
1032 while(AC(Indice+1) <= s)
7fd59977 1033 {
00302ba4 1034 ResultPntOn2SLine->Add(TheLine->Point(Indice));
1035 Indice++;
7fd59977 1036 }
00302ba4 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
7fd59977 1060 ResultPntOn2SLine->Add(TheLine->Point(High));
00302ba4 1061
7fd59977 1062 return(new IntPatch_WLine(ResultPntOn2SLine,Standard_False));
1063}
1064
1065//==================================================================================
1066// function : SectionPointToParameters
1067// purpose :
1068//==================================================================================
1069void SectionPointToParameters(const Intf_SectionPoint& Sp,
00302ba4 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)
7fd59977 1076{
1077 Intf_PIType typ;
1078 Standard_Integer Adr1,Adr2;
1079 Standard_Real Param,u,v;
1080 gp_Pnt P(Sp.Pnt());
00302ba4 1081
7fd59977 1082 Standard_Integer Pt1,Pt2,Pt3;
00302ba4 1083
7fd59977 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;
00302ba4 1114
7fd59977 1115 ca/=cabc; cb/=cabc; cc/=cabc;
00302ba4 1116
7fd59977 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 }
00302ba4 1127
1128
7fd59977 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;
00302ba4 1159
7fd59977 1160 ca/=cabc; cb/=cabc; cc/=cabc;
00302ba4 1161
7fd59977 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,
00302ba4 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
7fd59977 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,
00302ba4 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
7fd59977 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,
00302ba4 1258 const Standard_Integer b,
1259 const Standard_Integer c,
1260 IntPatch_PrmPrmIntersection_T3Bits& Map) const
7fd59977 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);
00302ba4 1266
7fd59977 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
c66d7156
P		 1277//=======================================================================
1278//function : Perform
1279//purpose :
1280//=======================================================================
1281void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
00302ba4 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,
c66d7156
P		 1289 IntSurf_ListOfPntOn2S& LOfPnts,
1290 const Standard_Boolean RestrictLine)
1291{
1292 if (LOfPnts.IsEmpty()){
1293 done = Standard_True;
7fd59977 1294 return;
1295 }
00302ba4 1296
c66d7156
P		 1297 empt = Standard_True;
1298 SLin.Clear();
00302ba4 1299
c66d7156
P		 1300 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
1301 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
1302 Standard_Real U1,U2,V1,V2;
00302ba4 1303
c66d7156
P		 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.;
00302ba4 1318
c66d7156 1319 IntSurf_ListIteratorOfListOfPntOn2S IterLOP1(LOfPnts);
7fd59977 1320
c66d7156
P		 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;
00302ba4 1328
c66d7156
P		 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 }
00302ba4 1334
c66d7156 1335 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
00302ba4 1336
302f96fb 1337 Standard_Integer NbLigCalculee = 0, ver;
c66d7156
P		 1338 Standard_Real pu1,pu2,pv1,pv2, dminiPointLigne;
1339 Standard_Boolean HasStartPoint,RejetLigne;
1340 IntSurf_PntOn2S StartPOn2S;
1341 gp_Pnt Point3dDebut,Point3dFin;
7fd59977 1342
c66d7156
P		 1343 TColStd_Array1OfReal StartParams(1,4);
1344 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
00302ba4 1345
c66d7156
P		 1346 IntSurf_ListIteratorOfListOfPntOn2S IterLOP2(LOfPnts);
1347 for(; IterLOP2.More(); IterLOP2.Next() ){
00302ba4 1348
c66d7156
P		 1349 IntSurf_PntOn2S cPnt = IterLOP2.Value();
1350 cPnt.Parameters(U1, V1, U2, V2);
00302ba4 1351
c66d7156
P		 1352 StartParams(1) = U1;
1353 StartParams(2) = V1;
1354 StartParams(3) = U2;
1355 StartParams(4) = V2;
00302ba4 1356
c66d7156
P		 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 }
c66d7156 1369 }// for( l ...
00302ba4 1370
c66d7156
P		 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();
c66d7156
P		 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
c66d7156
P		 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 }
00302ba4 1396
c66d7156
P		 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 }
00302ba4 1418
c66d7156
P		 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 }
00302ba4 1425
c66d7156
P		 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);
00302ba4 1434
c66d7156
P		 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
c66d7156
P		 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 }
00302ba4 1479
c66d7156
P		 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);
00302ba4 1489
c66d7156
P		 1490 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
1491 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
1492 Standard_Integer cNbP = wline->NbPnts();
00302ba4 1493
c66d7156
P		 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 }
00302ba4 1501
c66d7156
P		 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) {
00302ba4 1507 removeNext = Standard_True;
1508 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1509 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1510 }
c66d7156
P		 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;
00302ba4 1542
c66d7156
P		 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 }
c66d7156
P		 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 }
00302ba4 1557
c66d7156
P		 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));
00302ba4 1563
c66d7156 1564 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
00302ba4 1565
c66d7156
P		 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 }
00302ba4 1576
c66d7156
P		 1577 wline = NWLine;
1578 }
1579 }
1580 }// SLin.Length > 0
00302ba4 1581
a7dd5d0f 1582 AddWLine(SLin, wline, Deflection);
c66d7156
P		 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,
00302ba4 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 // Standard_Integer NbU1 = D1->NbSamplesU();
1611 // Standard_Integer NbV1 = D1->NbSamplesV();
1612 // Standard_Integer NbU2 = D2->NbSamplesU();
1613 // Standard_Integer NbV2 = D2->NbSamplesV();
7fd59977 1614
c66d7156
P		 1615 //-- Traitement des Lignes de sections
1616 empt = Standard_True;
1617 done = Standard_True;
1618 SLin.Clear();
00302ba4 1619
c66d7156 1620 //------------------------------------------------------------
7fd59977 1621
c66d7156 1622 Standard_Real pu1,pu2,pv1,pv2;
00302ba4 1623
c66d7156 1624 TColStd_Array1OfReal StartParams(1,4);
00302ba4 1625
1626 // Standard_Integer MaxOscill = NbU1;
1627 // if(MaxOscill < NbU2) MaxOscill=NbU2;
1628 // if(MaxOscill < NbV1) MaxOscill=NbV1;
1629 // if(MaxOscill < NbV2) MaxOscill=NbV2;
1630
1631 // Standard_Real nIncrement=Increment;
1632 // if(MaxOscill>10) {
1633 // #ifdef DEB
1634 // cout<<"\n IntPatch_PrmPrmIntersection.gxx : Increment:"<<Increment<<" -> "<<Increment/(0.5*MaxOscill)<<endl;
1635 // #endif
1636 // nIncrement/=0.5*MaxOscill;
1637 // }
1638
c66d7156 1639 IntPatch_ThePWalkingInter PW(Surf1,Surf2,
00302ba4 1640 TolTangency,
1641 Epsilon,
1642 Deflection,
1643 Increment); //nIncrement);
1644
1645
c66d7156
P		 1646 //Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
1647 //Standard_Real incidence;
1648 //Standard_Real dminiPointLigne;
00302ba4 1649
c66d7156 1650 Standard_Boolean HasStartPoint;//,RejetLigne;
00302ba4 1651
c66d7156 1652 IntSurf_PntOn2S StartPOn2S;
00302ba4 1653
c66d7156 1654 //Standard_Integer ver;
00302ba4 1655
c66d7156 1656 gp_Pnt Point3dDebut,Point3dFin;
00302ba4 1657
c66d7156 1658 //------------------------------------------------------------
00302ba4 1659
c66d7156
P		 1660 StartParams(1) = U1Depart;
1661 StartParams(2) = V1Depart;
1662 StartParams(3) = U2Depart;
1663 StartParams(4) = V2Depart;
00302ba4 1664
c66d7156
P		 1665 //-----------------------------------------------------------------------
1666 //-- Calcul du premier point de cheminement a partir du point approche --
1667 //-----------------------------------------------------------------------
1668 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1669 if(HasStartPoint) {
1670 //-------------------------------------------------
1671 //-- Un point a ete trouve --
1672 //-- On verifie qu il n appartient pas --
1673 //-- a une ligne de cheminement deja calculee. --
1674 //-------------------------------------------------
00302ba4 1675
c66d7156
P		 1676 PW.Perform(StartParams);
1677 if(PW.IsDone()) {
00302ba4 1678
c66d7156
P		 1679 Point3dDebut = PW.Value(1).Value();
1680 Point3dFin = PW.Value(PW.NbPoints()).Value();
7fd59977 1681
c66d7156
P		 1682 IntSurf_TypeTrans trans1,trans2;
1683 Standard_Real locu,locv;
1684 gp_Vec norm1,norm2,d1u,d1v;
1685 gp_Pnt ptbid;
1686 Standard_Integer indextg;
1687 gp_Vec tgline(PW.TangentAtLine(indextg));
1688 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1689 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1690 norm1 = d1u.Crossed(d1v);
1691 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1692 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1693 norm2 = d1u.Crossed(d1v);
1694 if (tgline.DotCross(norm2,norm1)>0.) {
00302ba4 1695 trans1 = IntSurf_Out;
1696 trans2 = IntSurf_In;
c66d7156
P		 1697 }
1698 else {
00302ba4 1699 trans1 = IntSurf_In;
1700 trans2 = IntSurf_Out;
c66d7156 1701 }
00302ba4 1702
1703
1704
c66d7156
P		 1705 Standard_Real TolTang = TolTangency;
1706 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1707 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
1708 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
00302ba4 1709
c66d7156
P		 1710 //---------------
1711 if(wline->NbVertex() == 0) {
00302ba4 1712 IntPatch_Point vtx;
1713 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1714 POn2S.Parameters(pu1,pv1,pu2,pv2);
1715 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1716 vtx.SetParameters(pu1,pv1,pu2,pv2);
1717 vtx.SetParameter(1);
1718 wline->AddVertex(vtx);
1719
1720 POn2S = PW.Line()->Value(wline->NbPnts());
1721 POn2S.Parameters(pu1,pv1,pu2,pv2);
1722 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1723 vtx.SetParameters(pu1,pv1,pu2,pv2);
1724 vtx.SetParameter(wline->NbPnts());
1725 wline->AddVertex(vtx);
c66d7156 1726 }
00302ba4 1727
c66d7156
P		 1728 //---------------
1729 SLin.Append(wline);
1730 empt = Standard_False;
00302ba4 1731
c66d7156
P		 1732 }
1733 }
1734}
1735//==================================================================================
1736// function : AdjustOnPeriodic
1737// purpose :
1738//==================================================================================
1739void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
00302ba4 1740 const Handle(Adaptor3d_HSurface)& Surf2,
1741 IntPatch_SequenceOfLine& aSLin)
c66d7156
P		 1742{
1743 Standard_Boolean bIsPeriodic[4], bModified, bIsNull, bIsPeriod;
1744 Standard_Integer i, j, k, aNbLines, aNbPx, aIndx, aIndq;
1745 Standard_Real aPeriod[4], dPeriod[4], ux[4], uq[4], aEps, du;
1746 //
1747 aEps=Precision::Confusion();
1748 //
1749 for (k=0; k<4; ++k) {
1750 aPeriod[k]=0.;
1751 }
1752 //
1753 bIsPeriodic[0]=Surf1->IsUPeriodic();
1754 bIsPeriodic[1]=Surf1->IsVPeriodic();
1755 bIsPeriodic[2]=Surf2->IsUPeriodic();
1756 bIsPeriodic[3]=Surf2->IsVPeriodic();
1757 //
1758 if (bIsPeriodic[0]){
1759 aPeriod[0]=Surf1->UPeriod();
1760 }
1761 if (bIsPeriodic[1]){
1762 aPeriod[1]=Surf1->VPeriod();
1763 }
1764 if (bIsPeriodic[2]){
1765 aPeriod[2]=Surf2->UPeriod();
1766 }
1767 if (bIsPeriodic[3]){
1768 aPeriod[3]=Surf2->VPeriod();
1769 }
1770 //
1771 for (k=0; k<4; ++k) {
1772 dPeriod[k]=0.25*aPeriod[k];
1773 }
1774 //
1775 aNbLines=aSLin.Length();
1776 for (i=1; i<=aNbLines; ++i) {
1777 Handle(IntPatch_WLine) aIL=Handle(IntPatch_WLine)::DownCast(aSLin.Value(i));
1778 Handle(IntSurf_LineOn2S) aL=aIL->Curve();
1779
1780 aNbPx=aL->NbPoints();
1781 if (aNbPx<10) {
1782 continue;
1783 }
1784 //
1785 for (j=0; j<2; ++j) {
1786 bModified=Standard_False;
1787 aIndx=1;
1788 aIndq=2;
1789 if (j) {
00302ba4 1790 aIndx=aNbPx;
1791 aIndq=aNbPx-1;
c66d7156
P		 1792 }
1793 //
1794 const IntSurf_PntOn2S& aPSx=aL->Value(aIndx);
1795 const IntSurf_PntOn2S& aPSq=aL->Value(aIndq);
1796 //
1797 aPSx.Parameters(ux[0], ux[1], ux[2], ux[3]);
1798 aPSq.Parameters(uq[0], uq[1], uq[2], uq[3]);
1799 //
1800 for (k=0; k<4; ++k) {
00302ba4 1801 bIsNull=Standard_False;
1802 bIsPeriod=Standard_False;
1803 //
1804 if (!bIsPeriodic[k]) {
1805 continue;
1806 }
1807 //
1808 if (fabs(ux[k])<aEps) {
1809 bModified=Standard_True;
1810 bIsNull=Standard_True;
1811 }
1812 //
1813 else if (fabs(ux[k]-aPeriod[k])<aEps) {
1814 bModified=Standard_True;
1815 bIsPeriod=Standard_True;
1816 }
1817 //
1818 if (bModified) {
1819 du=fabs(ux[k]-uq[k]);
1820 if (du > dPeriod[k]) {
1821 if(bIsNull){
1822 ux[k]=aPeriod[k];
1823 }
1824 if(bIsPeriod) {
1825 ux[k]=0.;
1826 }
1827 }
1828 }
c66d7156
P		 1829 }//for (k=0; k<4; ++k)
1830 if (bModified) {
00302ba4 1831 IntSurf_PntOn2S aPntOn2S;
1832 //
1833 aPntOn2S=aPSx;
1834 aPntOn2S.SetValue(ux[0], ux[1], ux[2], ux[3]);
1835 aL->Value(aIndx, aPntOn2S);
c66d7156
P		 1836 }
1837 }//for (j=0; j<1; ++j) {
1838 }//for (i=1; i<=aNbLines; ++i)
1839}
b1c5c4e6 1840
1841//==================================================================================
1842// function : MakeNewPoint
1843// purpose :
1844//==================================================================================
1845IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
1846 const IntSurf_PntOn2S& oldPnt,
1847 const Standard_Real* Periods)
1848{
1849 IntSurf_PntOn2S NewPoint;
1850 NewPoint.SetValue(replacePnt.Value());
00302ba4 1851
b1c5c4e6 1852 Standard_Real OldParams[4], NewParams[4];
1853 oldPnt.Parameters(OldParams[0], OldParams[1], OldParams[2], OldParams[3]);
1854 replacePnt.Parameters(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
1855
1856 Standard_Integer i;
1857 for (i = 0; i < 4; i++)
1858 if (Periods[i] != 0.)
1859 {
1860 if (Abs(NewParams[i] - OldParams[i]) >= 0.5*Periods[i])
1861 {
1862 if (NewParams[i] < OldParams[i])
1863 NewParams[i] += Periods[i];
1864 else
1865 NewParams[i] -= Periods[i];
1866 }
1867 }
1868
00302ba4 1869 NewPoint.SetValue(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
1870 return NewPoint;
b1c5c4e6 1871}
1872
c66d7156
P		 1873//==================================================================================
1874// function : Perform
1875// purpose : base SS Int. function
1876//==================================================================================
1877void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
00302ba4 1878 const Handle(Adaptor3d_TopolTool)& D1,
1879 const Handle(Adaptor3d_HSurface)& Surf2,
1880 const Handle(Adaptor3d_TopolTool)& D2,
1881 const Standard_Real TolTangency,
1882 const Standard_Real Epsilon,
1883 const Standard_Real Deflection,
1884 const Standard_Real Increment,
c66d7156
P		 1885 const Standard_Boolean ClearFlag)
1886{
00302ba4 1887 Standard_Integer Limit = 2500;
1888 Standard_Integer NbU1 = 10, NbV1 = 10, NbU2 = 10, NbV2 = 10;
c66d7156 1889 //
00302ba4 1890 D1->SamplePnts(Deflection, NbU1, NbV1);
1891 D2->SamplePnts(Deflection, NbU2, NbV2);
c66d7156
P		 1892 //
1893 NbU1 = D1->NbSamplesU();
1894 NbV1 = D1->NbSamplesV();
1895 NbU2 = D2->NbSamplesU();
1896 NbV2 = D2->NbSamplesV();
00302ba4 1897
c66d7156
P		 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.;
00302ba4 1911
c66d7156 1912 //---------------------------------------------
00302ba4 1913 if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit))
1914 {
c66d7156 1915 empt = Standard_True;
00302ba4 1916 if (ClearFlag)
1917 {
c66d7156
P		 1918 SLin.Clear();
1919 }
1920 //
1921 IntPolyh_Intersection* pInterference = NULL;
1922
00302ba4 1923 if ( D1->IsUniformSampling() || D2->IsUniformSampling() )
1924 {
c66d7156
P		 1925 pInterference = new IntPolyh_Intersection(Surf1,NbU1,NbV1,Surf2,NbU2,NbV2);
1926 }
00302ba4 1927 else
1928 {
c66d7156 1929 pInterference = new IntPolyh_Intersection(Surf1, anUpars1, aVpars1,
00302ba4 1930 Surf2, anUpars2, aVpars2 );
c66d7156 1931 }
00302ba4 1932
1933 if ( !pInterference )
1934 {
c66d7156
P		 1935 done = Standard_False;
1936 return;
1937 }
1938 //
1939 IntPolyh_Intersection& Interference = *pInterference;
1940 //
1941 done = Interference.IsDone();
00302ba4 1942 if( !done )
1943 {
1944 if (pInterference)
1945 {
1946 delete pInterference;
1947 pInterference = NULL;
c66d7156 1948 }
00302ba4 1949
c66d7156
P		 1950 return;
1951 }
00302ba4 1952
c66d7156
P		 1953 Standard_Integer nbLigSec = Interference.NbSectionLines();
1954 Standard_Integer nbTanZon = Interference.NbTangentZones();
1955 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
1956
302f96fb 1957 Standard_Integer NbLigCalculee = 0, ver;
00302ba4 1958 Standard_Real pu1,pu2,pv1,pv2, incidence, dminiPointLigne;
1959 Standard_Boolean HasStartPoint = Standard_False, RejectLine = Standard_False;
c66d7156
P		 1960 IntSurf_PntOn2S StartPOn2S;
1961 gp_Pnt Point3dDebut,Point3dFin;
1962
1963 TColStd_Array1OfReal StartParams(1,4);
1964 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
1965
00302ba4 1966 if(nbLigSec>=1)
1967 {
c66d7156 1968 Standard_Integer *TabL = new Standard_Integer [nbLigSec+1];
00302ba4 1969 for(Standard_Integer ls=1; ls<=nbLigSec; ++ls)
1970 {
1971 TabL[ls]=ls;
c66d7156
P		 1972 }
1973 //----------------------------------------1.1
00302ba4 1974 {
1975 Standard_Boolean triok;
1976 Standard_Integer nb_A, nb_B, tyu;
1977 do
1978 {
1979 triok=Standard_True;
1980 for(Standard_Integer b = 2; b <= nbLigSec; ++b )
1981 {
1982 nb_B = Interference.NbPointsInLine(TabL[b]);
1983 nb_A = Interference.NbPointsInLine(TabL[b-1]);
1984
1985 if( nb_B > nb_A )
1986 {
1987 tyu=TabL[b];
1988 TabL[b]=TabL[b-1];
1989 TabL[b-1]=tyu;
1990 triok=Standard_False;
1991 }
1992 }
1993 }
1994 while(triok==Standard_False);
1995 }
1996
c66d7156
P		 1997 //----------------------------------------
1998 // 1.2 For the line "ls" get 2D-bounds U,V for surfaces 1,2
1999 //
00302ba4 2000 for(Standard_Integer ls = 1; ls <= nbLigSec; ++ls)
2001 {
2002 Standard_Integer nbp = Interference.NbPointsInLine(TabL[ls]);
2003 if (!nbp)
2004 {
2005 continue;
2006 }
2007 //
2008 Standard_Integer *TabPtDep = new Standard_Integer [nbp+1];
2009 for(Standard_Integer ilig = 1; ilig <= nbp; ++ilig )
2010 {
2011 TabPtDep[ilig]=0;
2012 }
2013 //
2014 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2015 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
2016 Standard_Real _x,_y,_z;
2017 //
2018 Interference.GetLinePoint(TabL[ls], 1, _x, _y, _z,
2019 UminLig1, VminLig1, UminLig2, VminLig2,
2020 incidence);
2021
2022 UmaxLig1=UminLig1;
2023 VmaxLig1=VminLig1;
2024 UmaxLig2=UminLig2;
2025 VmaxLig2=VminLig2;
2026 //
2027 for(Standard_Integer ilig = 2; ilig <= nbp; ilig++ )
2028 {
2029 Standard_Real U1, U2, V1, V2;
2030 Interference.GetLinePoint(TabL[ls],ilig,_x,_y,_z,U1,V1,U2,V2,incidence);
2031 //
2032 if(U1>UmaxLig1) UmaxLig1=U1;
2033 if(V1>VmaxLig1) VmaxLig1=V1;
2034 if(U2>UmaxLig2) UmaxLig2=U2;
2035 if(V2>VmaxLig2) VmaxLig2=V2;
2036 //
2037 if(U1<UminLig1) UminLig1=U1;
2038 if(V1<VminLig1) VminLig1=V1;
2039 if(U2<UminLig2) UminLig2=U2;
2040 if(V2<VminLig2) VminLig2=V2;
2041 }//for( ilig = 2; ilig <= nbp; ilig++ ) {
2042 //
2043 //----------------------------------------
2044 // 1.3
2045 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
2046 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
2047 Standard_Boolean lignetrouvee=Standard_False;
2048 const Standard_Integer NbDePointsDeDepartDuChmLimit = 5;
2049 //
2050 do
2051 {
2052 NombreDePointsDeDepartDuCheminement++;
2053 switch (NombreDePointsDeDepartDuCheminement)
2054 {
2055 case 1:
2056 nbps2 = (nbp > 1) ? nbp/2 : 1;
2057 if(nbp<3)
2058 NombreDePointsDeDepartDuCheminement = NbDePointsDeDepartDuChmLimit;
2059
2060 break;
2061 case 2:
2062 nbps2 = 1;
2063 break;
2064 case 3:
2065 nbps2 = nbp-1;
2066 break;
2067
2068 case 4:
2069 nbps2 = 3 * nbp / 4;
2070 break;
2071
2072 case 5:
2073 nbps2 = nbp / 4;
2074 break;
2075 default:
2076 nbps2 = NombreDePointsDeDepartDuCheminement-3;
2077 NombreDePointsDeDepartDuCheminement++;
2078 }
2079
2080 //
2081 if(TabPtDep[nbps2] == 0)
2082 {
2083 Standard_Real U1, U2, V1, V2;
2084
2085 TabPtDep[nbps2] = 1;
2086 Interference.GetLinePoint(TabL[ls],nbps2,_x,_y,_z,U1,V1,U2,V2,incidence);
2087
2088 StartParams(1) = U1;
2089 StartParams(2) = V1;
2090 StartParams(3) = U2;
2091 StartParams(4) = V2;
2092
2093 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2094 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2095 if(HasStartPoint)
2096 {
2097 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2098 NbLigCalculee = SLin.Length();
2099 Standard_Integer l;
2100 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++)
2101 {
2102 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2103
2104 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2105 {
a7dd5d0f 2106 dminiPointLigne = 0.0;
2107 }
00302ba4 2108 }// for( l ...
2109
2110 if(dminiPointLigne > SeuildPointLigne)
2111 {
2112 PW.Perform(StartParams, UminLig1, VminLig1, UminLig2, VminLig2,
2113 UmaxLig1, VmaxLig1, UmaxLig2, VmaxLig2);
2114
2115 //
2116 Standard_Boolean bPWIsDone;
2117 Standard_Integer iPWNbPoints, aNbPointsVer;
2118 Standard_Real aD11, aD12, aD21, aD22, aDx;
2119 //
2120 bPWIsDone=PW.IsDone();
2121
2122 if(bPWIsDone)
2123 {
2124 iPWNbPoints=PW.NbPoints();
2125 //
2126 if( iPWNbPoints > 2 )
2127 {
2128 const Standard_Integer aMinNbPoints = 40;
2129 if(iPWNbPoints < aMinNbPoints)
2130 {
2131 PW.SeekAdditionalPoints(Surf1, Surf2, aMinNbPoints);
2132 iPWNbPoints = PW.NbPoints();
2133 }
2134
2135 RejectLine = Standard_False;
2136 Point3dDebut = PW.Value(1).Value();
2137 Point3dFin = PW.Value(iPWNbPoints).Value();
2138 for( ver = 1; (!RejectLine) && (ver<= NbLigCalculee); ++ver)
2139 {
2140 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2141 //
2142 aNbPointsVer=verwline->NbPnts();
2143 if (aNbPointsVer<3)
2144 {
2145 continue;
2146 }
2147 //
2148 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2149 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2150 //xf
2151 const gp_Pnt& aP21=verPointDebut.Value();
2152 const gp_Pnt& aP22=verPointFin.Value();
2153 //
2154 aD11=Point3dDebut.Distance(aP21);
2155 aD12=Point3dDebut.Distance(aP22);
2156 aD21=Point3dFin.Distance(aP21);
2157 aD22=Point3dFin.Distance(aP22);
2158 //
2159 if((aD11<=TolTangency && aD22<=TolTangency) ||
2160 (aD12<=TolTangency && aD21<=TolTangency))
2161 {
2162 Standard_Integer m, mx;
2163 //
2164 mx=aNbPointsVer/2;
2165 if (aNbPointsVer%2)
2166 {
2167 ++mx;
2168 }
2169 //
2170 const gp_Pnt& aPx=verwline->Point(mx).Value();
2171 for(m=1; m<iPWNbPoints; ++m)
2172 {
2173 const gp_Pnt& aP1=PW.Value(m).Value();
2174 const gp_Pnt& aP2=PW.Value(m+1).Value();
2175 gp_Vec aVec12(aP1, aP2);
2176 if (aVec12.SquareMagnitude()<1.e-20)
2177 {
2178 continue;
2179 }
2180
2181 //
2182 gp_Dir aDir12(aVec12);
2183 gp_Lin aLin12(aP1, aDir12);
2184 aDx=aLin12.Distance(aPx);
2185
2186 //modified by NIZNHY-PKV Tue May 10 11:08:07 2011f
2187 if (aDx<=2.*Epsilon)
2188 {
2189 //if (aDx<=TolTangency) {
2190 //modified by NIZNHY-PKV Tue May 10 11:08:13 2011t
2191
2192 RejectLine = Standard_True;
2193 break;
2194 }
2195 }//for(m=1; m<iPWNbPoints; ++m){
2196 }//if((aD11<=TolTangency && aD22<=TolTangency) ||...
2197 }// for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
2198 //
2199
2200 if(!RejectLine)
2201 {
2202 IntSurf_TypeTrans trans1,trans2;
2203 Standard_Real locu,locv;
2204 gp_Vec norm1,norm2,d1u,d1v;
2205 gp_Pnt ptbid;
2206 Standard_Integer indextg;
2207 gp_Vec tgline(PW.TangentAtLine(indextg));
2208 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2209 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2210 norm1 = d1u.Crossed(d1v);
2211 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2212 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2213 norm2 = d1u.Crossed(d1v);
2214 if( tgline.DotCross(norm2,norm1) >= 0. )
2215 {
2216 trans1 = IntSurf_Out;
2217 trans2 = IntSurf_In;
2218 }
2219 else
2220 {
2221 trans1 = IntSurf_In;
2222 trans2 = IntSurf_Out;
2223 }
2224
2225 Standard_Real TolTang = TolTangency;
2226 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2227 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2228 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2229
2230 if(wline->NbVertex() == 0)
2231 {
2232 IntPatch_Point vtx;
2233 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2234 POn2S.Parameters(pu1,pv1,pu2,pv2);
2235 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2236 vtx.SetParameters(pu1,pv1,pu2,pv2);
2237 vtx.SetParameter(1);
2238 wline->AddVertex(vtx);
2239
2240 POn2S = PW.Line()->Value(wline->NbPnts());
2241 POn2S.Parameters(pu1,pv1,pu2,pv2);
2242 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2243 vtx.SetParameters(pu1,pv1,pu2,pv2);
2244 vtx.SetParameter(wline->NbPnts());
2245 wline->AddVertex(vtx);
2246 }
2247
2248 lignetrouvee = Standard_True;
2249
2250 Standard_Integer slinlen = SLin.Length();
2251 if( slinlen > 0 )
2252 {
2253 Standard_Integer cnbV = wline->NbVertex();
2254 Standard_Integer ciV;
2255 for( ciV = 1; ciV <= cnbV; ciV++ )
2256 {
2257 Standard_Real pntDMin = 1.e+100;
2258 Standard_Integer VDMin = 0;
2259 Standard_Integer WLDMin = 0;
2260 gp_Pnt cPV = wline->Vertex(ciV).Value();
2261 Standard_Integer iL;
2262 for( iL = 1; iL <= slinlen; iL++)
2263 {
2264 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
2265 IntPatch_IType aType = aSLine->ArcType();
2266 if( aType != IntPatch_Walking)
2267 continue;
2268 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
2269 Standard_Integer tnbV = aWLine->NbVertex();
2270 Standard_Integer tiV;
2271 for( tiV = 1; tiV <= tnbV; tiV++ )
2272 {
2273 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
2274 Standard_Real tDistance = cPV.Distance(tPV);
2275 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
2276 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
2277 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
2278 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
2279 Standard_Real RmaxS1 = Max(uRs1,vRs1);
2280 Standard_Real RmaxS2 = Max(uRs2,vRs2);
2281 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4)
2282 {
2283 if( pntDMin > tDistance && tDistance > 1.e-9)
2284 {
2285 pntDMin = tDistance;
2286 VDMin = tiV;
2287 WLDMin = iL;
2288 }
2289 }
2290 }
2291 }
2292
2293 if( VDMin != 0 )
2294 {
2295 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
2296 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
2297 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
2298 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
2299 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
2300 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
2301 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
2302 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
2303
2304 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
2305 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
2306 Standard_Integer cNbP = wline->NbPnts();
2307
2308 TColStd_SequenceOfInteger VPold;
2309 Standard_Integer iPo;
2310 for( iPo = 1; iPo <= cnbV; iPo++ )
2311 {
2312 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
2313 Standard_Integer IPo = (Standard_Integer) Po;
2314 VPold.Append(IPo);
2315 }
2316
2317 Standard_Boolean removeNext = Standard_False;
2318 Standard_Boolean removePrev = Standard_False;
2319 if( ciV == 1)
2320 {
2321 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2322 if(dPar > 10)
2323 {
2324 removeNext = Standard_True;
2325 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2326 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2327 }
2328 }
2329 else if( ciV == cnbV)
2330 {
2331 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2332 if(dPar > 10)
2333 {
2334 removePrev = Standard_True;
2335 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2336 }
2337 }
2338 else
2339 {
2340 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2341 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2342 if(dParMi > 10)
2343 {
2344 removePrev = Standard_True;
2345 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2346 }
2347
2348 if(dParMa > 10)
2349 {
2350 removeNext = Standard_True;
2351 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2352 {
2353 if(dParMi > 10)
2354 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
2355 else
2356 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2357 }
2358 }
2359 else
2360 {
2361 if(dParMi > 10)
2362 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2363 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2364 }
2365 }
2366
2367 Standard_Integer pI = ciVpar;
2368
2369 Standard_Integer iP;
2370 for( iP = 1; iP <= cNbP; iP++)
2371 {
2372 if( pI == iP )
b1c5c4e6 2373 {
2374 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
2375 newL2s->Add(newPnt);
2376 }
00302ba4 2377 else if(removeNext && iP == (pI + 1))
2378 continue;
2379 else if(removePrev && iP == (pI - 1))
2380 continue;
2381 else
2382 newL2s->Add(wline->Point(iP));
2383 }
2384
2385 IntPatch_Point newVtx;
2386 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
2387 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
2388 newVtx.SetParameters(u21,v21,u22,v22);
2389 newVtx.SetParameter(VPold.Value(ciV));
2390
2391 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
2392
2393 Standard_Integer iV;
2394 for( iV = 1; iV <= cnbV; iV++ )
2395 {
2396 if( iV == ciV )
2397 NWLine->AddVertex(newVtx);
2398 else
2399 {
2400 IntPatch_Point theVtx = wline->Vertex(iV);
2401 theVtx.SetParameter(VPold.Value(iV));
2402 NWLine->AddVertex(theVtx);
2403 }
2404 }
2405
2406 wline = NWLine;
2407 }//if( VDMin != 0 )
2408 }//for( ciV = 1; ciV <= cnbV; ciV++ )
2409 }// SLin.Length > 0
7fd59977 2410
a7dd5d0f 2411 AddWLine(SLin, wline, Deflection);
00302ba4 2412 empt = Standard_False;
2413 }// !RejetLigne
2414 }// PW points > 2
2415 }// done is True
2416 }// dminiPointLigne > SeuildPointLigne
2417 }// HasStartPoint
2418 }// if TabPtDep[nbps2] == 0
2419 } while(nbp>5 && !( (NombreDePointsDeDepartDuCheminement >= NbDePointsDeDepartDuChmLimit && lignetrouvee) ||
2420 (NombreDePointsDeDepartDuCheminement-3 >= nbp && (!lignetrouvee))));
2421 delete [] TabPtDep;
7fd59977 2422 }// for( ls ...
2423
2424 delete [] TabL;
2425
2426 }// if nbLigSec >= 1
2427 //
2428 AdjustOnPeriodic(Surf1, Surf2, SLin);
2429 //
2430
2431 //--------------------------------------------------------------------
2432 //-- Calcul des parametres approches a partir des Zones De Tangence --
2433 //--------------------------------------------------------------------
2434 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2435 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
00302ba4 2436
7fd59977 2437 UminLig1=VminLig1=UminLig2=VminLig2=RealLast();
2438 UmaxLig1=VmaxLig1=UmaxLig2=VmaxLig2=-UminLig1;
2439
2440 // NbPointsInTangentZone always == 1 (eap)
00302ba4 2441
7fd59977 2442 Standard_Integer z;
00302ba4 2443 for( z=1; z <= nbTanZon; z++)
2444 {
7fd59977 2445 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2446 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
00302ba4 2447 Standard_Integer pz=1;
2448 Standard_Real _x,_y,_z;
2449 Standard_Real U1, U2, V1, V2;
2450 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2451
2452 if(U1>UmaxLig1) UmaxLig1=U1;
2453 if(V1>VmaxLig1) VmaxLig1=V1;
2454 if(U2>UmaxLig2) UmaxLig2=U2;
2455 if(V2>VmaxLig2) VmaxLig2=V2;
2456
2457 if(U1<UminLig1) UminLig1=U1;
2458 if(V1<VminLig1) VminLig1=V1;
2459 if(U2<UminLig2) UminLig2=U2;
2460 if(V2<VminLig2) VminLig2=V2;
7fd59977 2461 //}
2462 }
7fd59977 2463
00302ba4 2464 for(z=1; z <= nbTanZon; z++)
2465 {
7fd59977 2466 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2467 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
00302ba4 2468 Standard_Integer pz=1;
2469 Standard_Real _x,_y,_z;
2470 Standard_Real U1, U2, V1, V2;
2471 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2472
2473 StartParams(1) = U1;
2474 StartParams(2) = V1;
2475 StartParams(3) = U2;
2476 StartParams(4) = V2;
2477
2478 //-----------------------------------------------------------------------
2479 //-- Calcul du premier point de cheminement a partir du point approche --
2480 //-----------------------------------------------------------------------
2481 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2482 if(HasStartPoint)
2483 {
2484 //-------------------------------------------------
2485 //-- Un point a ete trouve --
2486 //-- On verifie qu il n appartient pas --
2487 //-- a une ligne de cheminement deja calculee. --
2488 //-------------------------------------------------
2489 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2490
2491 NbLigCalculee = SLin.Length();
2492 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2493
2494 for(Standard_Integer l=1;
2495 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2496 l++)
2497 {
2498 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2499
2500 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2501 {
2502 dminiPointLigne = 0.0;
2503 }
2504 }
2505
2506 //-- Fin d exploration des lignes
2507 if(dminiPointLigne > SeuildPointLigne)
2508 {
2509 //---------------------------------------------------
2510 //-- Le point de depart du nouveau cheminement --
2511 //-- n est present dans aucune ligne deja calculee.--
2512 //---------------------------------------------------
2513 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,
2514 UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
2515
2516 if(PW.IsDone())
2517 {
2518 if(PW.NbPoints()>2)
2519 {
2520 const Standard_Integer aMinNbPoints = 40;
2521 if(PW.NbPoints() < aMinNbPoints)
2522 {
2523 PW.SeekAdditionalPoints(Surf1, Surf2, aMinNbPoints);
2524 }
2525
2526 //-----------------------------------------------
2527 //-- Verification a posteriori :
2528 //-- On teste si le point de depart et de fin de
2529 //-- la ligne de cheminement est present dans une
2530 //-- autre ligne .
2531 //-----------------------------------------------
2532 RejectLine = Standard_False;
2533 Point3dDebut = PW.Value(1).Value();
2534 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2535 Point3dFin = PointFin.Value();
2536
2537 for(ver=1 ; (!RejectLine) && (ver<= NbLigCalculee) ; ver++)
2538 {
2539 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2540 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
2541
2542 // Check end point if it is on existing line.
2543 // Start point is checked before.
2544 if (IsPointOnLine(PointFin, verwline, Deflection))
2545 {
2546 RejectLine = Standard_True;
2547 break;
2548 }
2549
2550 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2551 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2552 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
2553 {
2554 RejectLine = Standard_True;
2555 }
2556 else
2557 {
2558 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
2559 {
2560 RejectLine = Standard_True;
a7dd5d0f 2561 }
00302ba4 2562 }
2563 }
a7dd5d0f 2564
00302ba4 2565 if(!RejectLine)
2566 {
2567 IntSurf_TypeTrans trans1,trans2;
2568 Standard_Real locu,locv;
2569 gp_Vec norm1,norm2,d1u,d1v;
2570 gp_Pnt ptbid;
2571 Standard_Integer indextg;
2572 gp_Vec tgline(PW.TangentAtLine(indextg));
2573 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2574 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2575 norm1 = d1u.Crossed(d1v);
2576 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2577 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2578 norm2 = d1u.Crossed(d1v);
2579 if (tgline.DotCross(norm2,norm1)>0.)
2580 {
2581 trans1 = IntSurf_Out;
2582 trans2 = IntSurf_In;
2583 }
2584 else
2585 {
2586 trans1 = IntSurf_In;
2587 trans2 = IntSurf_Out;
2588 }
2589
2590 Standard_Real TolTang = TolTangency;
2591 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2592 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2593 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2594
2595 //---------------
2596 if(wline->NbVertex() == 0)
2597 {
2598 IntPatch_Point vtx;
2599 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2600 POn2S.Parameters(pu1,pv1,pu2,pv2);
2601 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2602 vtx.SetParameters(pu1,pv1,pu2,pv2);
2603 vtx.SetParameter(1);
2604 wline->AddVertex(vtx);
2605
2606 POn2S = PW.Line()->Value(wline->NbPnts());
2607 POn2S.Parameters(pu1,pv1,pu2,pv2);
2608 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2609 vtx.SetParameters(pu1,pv1,pu2,pv2);
2610 vtx.SetParameter(wline->NbPnts());
2611 wline->AddVertex(vtx);
2612 }
2613
2614 //---------------
2615 AddWLine(SLin, wline, Deflection);
2616 empt = Standard_False;
2617 }
2618 else
2619 {
2620 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2621 }
2622 //------------------------------------------------------------
2623 }
2624 } //-- le cheminement a reussi (done a True)
2625 } //-- le point approche ne renvoie pas sur une ligne existante
2626 } //-- Si HasStartPoint
c66d7156
P		 2627 //} //-- Boucle Sur les Points de la Tangent Zone
2628 } //-- Boucle sur Les Tangent Zones
7fd59977 2629
00302ba4 2630 if ( pInterference )
2631 {
c66d7156
P		 2632 delete pInterference;
2633 pInterference = NULL;
2634 }
00302ba4 2635
c66d7156
P		 2636 return;
2637 }// if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit)) {
2638
2639 Handle(IntSurf_LineOn2S) LOn2S = new IntSurf_LineOn2S();
2640 PointDepart( LOn2S, Surf1, NbU1, NbV1, Surf2, NbU2, NbV2 );
7fd59977 2641 empt = Standard_True;
2642 done = Standard_True;
2643 SLin.Clear();
00302ba4 2644
c66d7156
P		 2645 Standard_Integer NbLigCalculee = 0;
2646 Standard_Real U1,U2,V1,V2;
7fd59977 2647 Standard_Real pu1,pu2,pv1,pv2;
00302ba4 2648
7fd59977 2649 TColStd_Array1OfReal StartParams(1,4);
c66d7156
P		 2650 Standard_Integer MaxOscill = NbU1;
2651 if(MaxOscill < NbU2) MaxOscill=NbU2;
2652 if(MaxOscill < NbV1) MaxOscill=NbV1;
2653 if(MaxOscill < NbV2) MaxOscill=NbV2;
00302ba4 2654
c66d7156
P		 2655 Standard_Real nIncrement=Increment;
2656 //if(MaxOscill>10)
00302ba4 2657 //nIncrement/=0.5*MaxOscill;
c66d7156
P		 2658
2659 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,nIncrement);
2660 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
2661 Standard_Real dminiPointLigne;
2662 Standard_Boolean HasStartPoint,RejetLigne;
7fd59977 2663 IntSurf_PntOn2S StartPOn2S;
c66d7156 2664 Standard_Integer ver;
7fd59977 2665 gp_Pnt Point3dDebut,Point3dFin;
c66d7156 2666
7fd59977 2667 //------------------------------------------------------------
c66d7156
P		 2668 //-- Calcul des parametres approches a partir des Zones De Tangence --
2669 //--------------------------------------------------------------------
2670 Standard_Integer nbTanZon = LOn2S->NbPoints();
2671 for(Standard_Integer z=1; z <= nbTanZon; z++) {
2672 const IntSurf_PntOn2S& POn2S = LOn2S->Value(z);
2673 POn2S.Parameters(U1,V1,U2,V2);
2674 StartParams(1) = U1;
2675 StartParams(2) = V1;
2676 StartParams(3) = U2;
2677 StartParams(4) = V2;
00302ba4 2678
c66d7156
P		 2679 //-----------------------------------------------------------------------
2680 //-- Calcul du premier point de cheminement a partir du point approche --
2681 //-----------------------------------------------------------------------
2682 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
00302ba4 2683 if(HasStartPoint)
2684 {
c66d7156
P		 2685 //-------------------------------------------------
2686 //-- Un point a ete trouve --
2687 //-- On verifie qu il n appartient pas --
2688 //-- a une ligne de cheminement deja calculee. --
2689 //-------------------------------------------------
2690 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
00302ba4 2691
c66d7156
P		 2692 NbLigCalculee = SLin.Length();
2693 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
00302ba4 2694
c66d7156 2695 for(Standard_Integer l=1;
00302ba4 2696 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2697 l++)
2698 {
a7dd5d0f 2699 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2700
00302ba4 2701 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2702 {
a7dd5d0f 2703 dminiPointLigne = 0.0;
2704 }
7fd59977 2705 }
a7dd5d0f 2706
c66d7156 2707 //-- Fin d exploration des lignes
00302ba4 2708 if(dminiPointLigne > SeuildPointLigne)
2709 {
2710 //---------------------------------------------------
2711 //-- Le point de depart du nouveau cheminement --
2712 //-- n est present dans aucune ligne deja calculee.--
2713 //---------------------------------------------------
2714 PW.Perform(StartParams);
2715 if(PW.IsDone())
2716 {
2717 if(PW.NbPoints()>2)
2718 {
2719 //-----------------------------------------------
2720 //-- Verification a posteriori :
2721 //-- On teste si le point de depart et de fin de
2722 //-- la ligne de cheminement est present dans une
2723 //-- autre ligne .
2724 //-----------------------------------------------
2725 RejetLigne = Standard_False;
2726 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 2727 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2728 Point3dFin = PointFin.Value();
00302ba4 2729
2730 for(ver=1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++)
2731 {
2732 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2733 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
a7dd5d0f 2734
2735 // Check end point if it is on existing line.
2736 // Start point is checked before.
00302ba4 2737 if (IsPointOnLine(PointFin, verwline, Deflection))
2738 {
a7dd5d0f 2739 RejetLigne = Standard_True;
2740 break;
2741 }
2742
00302ba4 2743 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2744 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2745 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
2746 {
2747 RejetLigne = Standard_True;
2748 }
2749 else
2750 {
2751 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
2752 {
2753 RejetLigne = Standard_True;
2754 }
2755 }
2756 }
2757
2758 if(!RejetLigne)
2759 {
2760 IntSurf_TypeTrans trans1,trans2;
2761 Standard_Real locu,locv;
2762 gp_Vec norm1,norm2,d1u,d1v;
2763 gp_Pnt ptbid;
2764 Standard_Integer indextg;
2765 gp_Vec tgline(PW.TangentAtLine(indextg));
2766 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2767 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2768 norm1 = d1u.Crossed(d1v);
2769 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2770 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2771 norm2 = d1u.Crossed(d1v);
2772 if (tgline.DotCross(norm2,norm1)>0.)
2773 {
2774 trans1 = IntSurf_Out;
2775 trans2 = IntSurf_In;
2776 }
2777 else {
2778 trans1 = IntSurf_In;
2779 trans2 = IntSurf_Out;
2780 }
2781
2782 Standard_Real TolTang = TolTangency;
2783 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2784 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2785 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2786
2787 //---------------
2788 if(wline->NbVertex() == 0)
2789 {
2790 IntPatch_Point vtx;
2791 const IntSurf_PntOn2S& POn2Sf = PW.Line()->Value(1);
2792 POn2Sf.Parameters(pu1,pv1,pu2,pv2);
2793 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2794 vtx.SetParameters(pu1,pv1,pu2,pv2);
2795 vtx.SetParameter(1);
2796 wline->AddVertex(vtx);
2797
2798 const IntSurf_PntOn2S& POn2Sl = PW.Line()->Value(wline->NbPnts());
2799 POn2Sl.Parameters(pu1,pv1,pu2,pv2);
2800 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2801 vtx.SetParameters(pu1,pv1,pu2,pv2);
2802 vtx.SetParameter(wline->NbPnts());
2803 wline->AddVertex(vtx);
2804 }
2805
2806 //---------------
a7dd5d0f 2807 AddWLine(SLin, wline, Deflection);
00302ba4 2808 empt = Standard_False;
2809 }
2810 else
2811 {
2812 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2813 }
2814 //------------------------------------------------------------
2815 }
2816 } //-- le cheminement a reussi (done a True)
c66d7156
P		 2817 } //-- le point approche ne renvoie pas sur une ligne existante
2818 } //-- Si HasStartPoint
2819 } //-- Boucle sur Les Tangent Zones
7fd59977 2820}
c66d7156
P		 2821//modified by NIZNHY-PKV Wed May 25 09:39:07 2011f
2822//=======================================================================
2823//class : IntPatch_InfoPD
2824//purpose :
2825//=======================================================================
2826class IntPatch_InfoPD {
00302ba4 2827public:
c66d7156
P		 2828 //----------------------------------------C-tor
2829 IntPatch_InfoPD(const Standard_Integer aNBI) {
2830 Standard_Integer aNBI2, i, j;
2831 myNBI=aNBI;
2832 //
2833 aNBI2=aNBI*aNBI;
2834 myP1DS2=new char[aNBI2];
2835 myP2DS1=new char[aNBI2];
2836 myIP1=new Standard_Integer[aNBI2];
2837 myIP2=new Standard_Integer[aNBI2];
2838 myP1=new gp_Pnt[aNBI2];
2839 myP2=new gp_Pnt[aNBI2];
2840 //
2841 for (i=0; i<myNBI; ++i) {
2842 for (j=0; j<myNBI; ++j) {
00302ba4 2843 xP1DS2(i, j)=0;
2844 xP2DS1(i, j)=0;
2845 xIP1(i, j)=0;
2846 xIP2(i, j)=0;
2847 xP1(i, j).SetCoord(0., 0., 0.);
2848 xP2(i, j).SetCoord(0., 0., 0.);
c66d7156
P		 2849 }
2850 }
2851 };
2852 //---------------------------------------- D-tor
2853 ~IntPatch_InfoPD() {
2854 delete [] (char*) myP1DS2;
2855 delete [] (char*) myP2DS1;
2856 delete [] (Standard_Integer*) myIP1;
2857 delete [] (Standard_Integer*) myIP2;
2858 delete [] (gp_Pnt*)myP1;
2859 delete [] (gp_Pnt*)myP2;
2860 };
2861 //---------------------------------------- Index
2862 Standard_Integer Index(const Standard_Integer i,
00302ba4 2863 const Standard_Integer j) const {
2864 return i*myNBI+j;
c66d7156
P		 2865 };
2866 //---------------------------------------- NBI
2867 Standard_Integer NBI() const {
2868 return myNBI;
2869 };
2870 //----------------------------------------xP1DS2
2871 char& xP1DS2(const Standard_Integer i,
00302ba4 2872 const Standard_Integer j) {
2873 return myP1DS2[Index(i,j)];
c66d7156
P		 2874 };
2875 //----------------------------------------xP2DS1
2876 char& xP2DS1(const Standard_Integer i,
00302ba4 2877 const Standard_Integer j) {
2878 return myP2DS1[Index(i,j)];
c66d7156
P		 2879 };
2880 //----------------------------------------xIP1
2881 Standard_Integer& xIP1(const Standard_Integer i,
00302ba4 2882 const Standard_Integer j) {
2883 return myIP1[Index(i,j)];
c66d7156
P		 2884 };
2885 //----------------------------------------xIP2
2886 Standard_Integer& xIP2(const Standard_Integer i,
00302ba4 2887 const Standard_Integer j) {
2888 return myIP2[Index(i,j)];
c66d7156
P		 2889 };
2890 //----------------------------------------xP1
2891 gp_Pnt& xP1(const Standard_Integer i,
00302ba4 2892 const Standard_Integer j) {
2893 return myP1[Index(i,j)];
c66d7156
P		 2894 };
2895 //----------------------------------------xP1
2896 gp_Pnt& xP2(const Standard_Integer i,
00302ba4 2897 const Standard_Integer j) {
2898 return myP2[Index(i,j)];
c66d7156 2899 };
00302ba4 2900protected:
c66d7156
P		 2901 Standard_Integer myNBI;
2902 char *myP1DS2;
2903 char *myP2DS1;
2904 Standard_Integer *myIP1;
2905 Standard_Integer *myIP2;
2906 gp_Pnt *myP1;
2907 gp_Pnt *myP2;
2908};
2909//modified by NIZNHY-PKV Tue May 24 11:38:55 2011t
7fd59977 2910//==================================================================================
c66d7156 2911// function : PointDepart
7fd59977 2912// purpose :
2913//==================================================================================
c66d7156 2914void IntPatch_PrmPrmIntersection::PointDepart(Handle(IntSurf_LineOn2S)& LineOn2S,
00302ba4 2915 const Handle(Adaptor3d_HSurface)& S1,
2916 const Standard_Integer SU_1,
2917 const Standard_Integer SV_1,
2918 const Handle(Adaptor3d_HSurface)& S2,
2919 const Standard_Integer SU_2,
2920 const Standard_Integer SV_2) const
c66d7156
P		 2921{
2922 Standard_Integer i, j, xNBI;
2923 //modified by NIZNHY-PKV Tue May 24 11:37:38 2011f
2924 xNBI=200;
2925 IntPatch_InfoPD aIPD(xNBI);
2926 //modified by NIZNHY-PKV Wed May 25 06:47:12 2011t
2927 Standard_Integer iC15, SU1, SV1, SU2, SV2;
2928 Standard_Real U0, U1, V0, V1, U, V;
96a95605 2929 Standard_Real resu0,resv0;
c66d7156
P		 2930 Standard_Real du1,du2,dv1,dv2, dmaxOn1, dmaxOn2;
2931 Standard_Real x0,y0,z0, x1,y1,z1,d;
2932 Bnd_Box Box1, Box2;
7fd59977 2933 //
c66d7156
P		 2934 iC15=15;
2935 SU1 =iC15*SU_1 ;
2936 SV1 =iC15*SV_1 ;
2937 SU2 =iC15*SU_2 ;
2938 SV2 =iC15*SV_2 ;
7fd59977 2939 //
c66d7156
P		 2940 if(xNBI<SU1) {
2941 SU1 = xNBI;
2942 }
2943 if(xNBI<SV1){
2944 SV1 = xNBI;
2945 }
2946 if(xNBI<SU2){
2947 SU2 = xNBI;
2948 }
2949 if(xNBI<SV2){
2950 SV2 = xNBI;
2951 }
2952 //
2953 U0 = S1->FirstUParameter();
2954 U1 = S1->LastUParameter();
2955 V0 = S1->FirstVParameter();
2956 V1 = S1->LastVParameter();
2957 //
2958 resu0=U0;
c66d7156
P		 2959 resv0=V0;
2960 //
2961 dmaxOn1 = 0.0;
2962 dmaxOn2 = 0.0;
2963 //-----
2964 du1 = (U1-U0)/(SU1-1);
2965 dv1 = (V1-V0)/(SV1-1);
2966 for(U=U0,i=0; i<SU1; i++,U+=du1) {
2967 for(V=V0,j=0; j<SV1; V+=dv1,j++) {
2968 aIPD.xP1(i, j)= S1->Value(U,V);
2969 Box1.Add(aIPD.xP1(i, j));
2970 if(i>0 && j>0) {
00302ba4 2971 aIPD.xP1(i, j) .Coord(x0,y0,z0);
2972 aIPD.xP1(i-1, j-1).Coord(x1,y1,z1);
2973 //
2974 d=Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
2975 if(d>dmaxOn1) {
2976 dmaxOn1 = d;
2977 }
c66d7156
P		 2978 }
2979 }
2980 }
2981 Box1.Enlarge(1.e-8);
2982 //
2983 U0 = S2->FirstUParameter();
2984 U1 = S2->LastUParameter();
2985 V0 = S2->FirstVParameter();
2986 V1 = S2->LastVParameter();
2987 //
2988 du2 = (U1-U0)/(SU2-1);
2989 dv2 = (V1-V0)/(SV2-1);
2990 for(U=U0,i=0; i<SU2; i++,U+=du2) {
2991 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
2992 aIPD.xP2(i, j) = S2->Value(U,V);
2993 Box2.Add(aIPD.xP2(i, j));
2994 if(i>0 && j>0) {
00302ba4 2995 aIPD.xP2(i, j) .Coord(x0,y0,z0);
2996 aIPD.xP2(i-1, j-1).Coord(x1,y1,z1);
2997 d = Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
2998 if(d>dmaxOn2) {
2999 dmaxOn2 = d;
3000 }
c66d7156
P		 3001 }
3002 }
3003 }
3004 Box2.Enlarge(1.e-8);
3005 //--------
3006 //
3007 if(Box1.IsOut(Box2)) {
00302ba4 3008
c66d7156
P		 3009 return;
3010 }
3011 //
3012 Standard_Integer aNbPG;
3013 Standard_Real x10,y10,z10,x11,y11,z11;
3014 Standard_Real x20,y20,z20,x21,y21,z21;
3015 Standard_Real dx, dy, dz, dmax;
3016 Standard_Real dx2, dy2, dz2;
3017 //
3018 Box1.Get(x10,y10,z10,x11,y11,z11);
3019 Box2.Get(x20,y20,z20,x21,y21,z21);
3020 //
3021 x0 = (x10>x20)? x10 : x20;
3022 y0 = (y10>y20)? y10 : y20;
3023 z0 = (z10>z20)? z10 : z20;
3024 //
3025 x1 = (x11<x21)? x11 : x21;
3026 y1 = (y11<y21)? y11 : y21;
3027 z1 = (z11<z21)? z11 : z21;
3028 //
3029 if(dmaxOn2 > dmaxOn1) {
3030 dmaxOn1 = dmaxOn2;
7fd59977 3031 }
3032 //
c66d7156
P		 3033 dmaxOn1+=dmaxOn1;
3034 x0-=dmaxOn1;
3035 y0-=dmaxOn1;
3036 z0-=dmaxOn1;
3037 x1+=dmaxOn1;
3038 y1+=dmaxOn1;
3039 z1+=dmaxOn1;
3040 //
3041 x10-=dmaxOn1; y10-=dmaxOn1; z10-=dmaxOn1;
3042 x11+=dmaxOn1; y11+=dmaxOn1; z11+=dmaxOn1;
3043
3044 x20-=dmaxOn1; y20-=dmaxOn1; z20-=dmaxOn1;
3045 x21+=dmaxOn1; y21+=dmaxOn1; z21+=dmaxOn1;
3046
3047 aNbPG=NbPointsGrille();
3048 dx = (x1-x0)/aNbPG;
3049 dy = (y1-y0)/aNbPG;
3050 dz = (z1-z0)/aNbPG;
7fd59977 3051 //
c66d7156
P		 3052 dmax = dx;
3053 if(dy>dmax) {
3054 dmax = dy;
7fd59977 3055 }
c66d7156
P		 3056 if(dz>dmax){
3057 dmax = dz;
7fd59977 3058 }
c66d7156
P		 3059 //
3060 if(dx<dmax*0.01) {
3061 dx = dmax*0.01;
7fd59977 3062 }
c66d7156
P		 3063 if(dy<dmax*0.01) {
3064 dy = dmax*0.01;
3065 }
3066 if(dz<dmax*0.01) {
3067 dz = dmax*0.01;
7fd59977 3068 }
3069 //
c66d7156
P		 3070 dx2 = dx*0.5;
3071 dy2 = dy*0.5;
3072 dz2 = dz*0.5 ;
3073 //
3074 IntPatch_PrmPrmIntersection_T3Bits M1(_BASE);
3075 IntPatch_PrmPrmIntersection_T3Bits M2(_BASE);
3076 //
3077 for(i=0;i<SU1;i++) {
3078 for(j=0;j<SV1;j++) {
3079 aIPD.xIP1(i, j)=-1;
3080 const gp_Pnt& P=aIPD.xP1(i, j);
8263fcd3 3081 aIPD.xP1DS2(i, j) = (char)CodeReject(x20,y20,z20,x21,y21,z21,P.X(),P.Y(),P.Z());
c66d7156
P		 3082 int ix = (int)((P.X()-x0 + dx2 )/dx);
3083 if(DansGrille(ix)) {
00302ba4 3084 int iy = (int)((P.Y()-y0 + dy2)/dy);
3085 if(DansGrille(iy)) {
3086 int iz = (int)((P.Z()-z0 + dz2)/dz);
3087 if(DansGrille(iz)) {
3088 aIPD.xIP1(i, j) = GrilleInteger(ix,iy,iz);
3089 }
3090 }
c66d7156
P		 3091 }
3092 }
3093 }
3094 //-- cout<<" Grille du 1 fini "<<endl;
3095 for(i=0;i<SU2;i++) {
3096 for(j=0;j<SV2;j++) {
3097 aIPD.xIP2(i, j)=-1;
3098 const gp_Pnt& P=aIPD.xP2(i, j);
8263fcd3 3099 aIPD.xP2DS1(i, j) = (char)CodeReject(x10,y10,z10,x11,y11,z11,P.X(),P.Y(),P.Z());
c66d7156
P		 3100 int ix = (int)((P.X()-x0 + dx2)/dx);
3101 if(DansGrille(ix)) {
00302ba4 3102 int iy = (int)((P.Y()-y0 + dy2)/dy);
3103 if(DansGrille(iy)) {
3104 int iz = (int)((P.Z()-z0 + dz2)/dz);
3105 if(DansGrille(iz)) {
3106 aIPD.xIP2(i, j) = GrilleInteger(ix,iy,iz);
3107 }
3108 }
c66d7156
P		 3109 }
3110 }
7fd59977 3111 }
3112 //
c66d7156
P		 3113 for(i=0;i<SU1-1;i+=1) {
3114 for(j=0;j<SV1-1;j+=1) {
3115 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j)) ||
00302ba4 3116 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))){
3117 Remplit(aIPD.xIP1(i, j),
3118 aIPD.xIP1(i+1, j),
3119 aIPD.xIP1(i+1, j+1),
3120 M1);
c66d7156
P		 3121 }
3122 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i, j+1)) ||
00302ba4 3123 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))) {
3124 Remplit(aIPD.xIP1(i, j),
3125 aIPD.xIP1(i, j+1),
3126 aIPD.xIP1(i+1, j+1),
3127 M1);
c66d7156 3128 }
7fd59977 3129 }
c66d7156
P		 3130 }
3131 //
3132 for(i=0;i<SU2-1;i+=1) {
3133 for(j=0;j<SV2-1;j+=1) {
3134 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j)) ||
00302ba4 3135 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3136 Remplit(aIPD.xIP2(i, j),
3137 aIPD.xIP2(i+1, j),
3138 aIPD.xIP2(i+1, j+1),
3139 M2);
c66d7156
P		 3140 }
3141 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i, j+1)) ||
00302ba4 3142 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3143 Remplit(aIPD.xIP2(i, j),
3144 aIPD.xIP2(i, j+1),
3145 aIPD.xIP2(i+1, j+1),
3146 M2);
c66d7156
P		 3147 }
3148 }
3149 }
3150 //
3151 M1.ResetAnd();
3152 M2.ResetAnd();
3153 //
3154 int newind=0;
3155 long unsigned Compt=0;
3156 int ok=0;
3157 int indicepointtraite = 0;
3158 Standard_Integer k,nu,nv;
3159 //
3160 do {
3161 indicepointtraite--;
3162 ok = M1.And(M2,newind);
3163 if(ok) {
3164 IntegerGrille(newind,i,j,k);
3165 int nb=0;
3166 int LIM=3;
3167 if( DansGrille(i-1) && DansGrille(j-1) && DansGrille(k-1)
00302ba4 3168 && DansGrille(i+1) && DansGrille(j+1) && DansGrille(k+1)) {
3169 int si,sj,sk;
3170 for(si=-1; si<= 1 && nb<LIM; si++) {
3171 for(sj=-1; sj<= 1 && nb<LIM; sj++) {
3172 for(sk=-1; sk<= 1 && nb<LIM; sk++) {
3173 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3174 if(M1.Val(lu) && M2.Val(lu)) {
3175 nb++;
3176 }
3177 }
3178 }
3179 }
3180 if(nb>=LIM) {
3181 for(si=-1; si<= 1; si++) {
3182 for(sj=-1; sj<= 1; sj++) {
3183 for(sk=-1; sk<= 1; sk++) {
3184 if(si || sj || sk) {
3185 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3186 M1.Raz(lu);
3187 }
3188 }
3189 }
3190 }
3191 }
7fd59977 3192 }
3193 //
c66d7156 3194 gp_Pnt P(dx*i + x0, dy*j + y0, dz*k+z0);
7fd59977 3195 //
c66d7156
P		 3196 Standard_Integer nu1=-1,nu2=-1;
3197 Standard_Integer nv1=0, nv2=0;
3198 int nbsur1 = 0;
3199 for(nu=0;nu1<0 && nu<SU1;nu++) {
00302ba4 3200 for(nv=0;nu1<0 && nv<SV1;nv++) {
3201 if( aIPD.xIP1(nu, nv) ==(Standard_Integer) newind ) {
3202 nbsur1++;
3203 aIPD.xIP1(nu, nv)=indicepointtraite;
3204 nu1=nu; nv1=nv;
3205 }
3206 }
c66d7156
P		 3207 }
3208 if(nu1>=0) {
00302ba4 3209 int nbsur2 = 0;
3210 for(nu=0;nu2<0 && nu<SU2;nu++) {
3211 for(nv=0;nu2<0 && nv<SV2;nv++) {
3212 if( aIPD.xIP2(nu, nv)==(Standard_Integer) newind ) {
3213 nbsur2++;
3214 aIPD.xIP2(nu, nv)=indicepointtraite;
3215 nu2=nu; nv2=nv;
3216 }
3217 }
3218 }
c66d7156
P		 3219 }
3220 if(nu1>=0 && nu2>=0) {
00302ba4 3221 IntSurf_PntOn2S POn2S;
3222 POn2S.SetValue(P,
3223 S1->FirstUParameter()+nu1*du1,
3224 S1->FirstVParameter()+nv1*dv1,
3225 S2->FirstUParameter()+nu2*du2,
3226 S2->FirstVParameter()+nv2*dv2);
3227 LineOn2S->Add(POn2S);
3228 Compt++;
c66d7156
P		 3229 }
3230 else {
00302ba4 3231 //-- aucun point du triangle n a ete trouve assez proche
3232 //-- on recherche les 3 points les plus proches de P
3233 //-- dans chacun des tableaux
3234 Standard_Real Dist3[3],u3[3] = { 0.0, 0.0, 0.0 },v3[3] = { 0.0, 0.0, 0.0 };
3235 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3236 for(U=resu0,i=0; i<SU1; i++,U+=du1) {
3237 for(V=resv0,j=0; j<SV1; V+=dv1,j++) {
3238 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3239 Standard_Real t = aIPD.xP1(i, j).SquareDistance(P);
3240 //-- On remplace la plus grande valeur ds Dist[.] par la val courante
3241 if(Dist3[0]<Dist3[1]) {
3242 Standard_Real z;
3243 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3244 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3245 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3246 }
3247 if(Dist3[1]<Dist3[2]) {
3248 Standard_Real z;
3249 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3250 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3251 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3252 }
3253 if(Dist3[0]<Dist3[1]) {
3254 Standard_Real z;
3255 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3256 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3257 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3258 }
3259 //-- la plus grande valeur est dans Dist3[0]
3260 if(t<Dist3[0]) {
3261 Dist3[0]=t; u3[0]=U; v3[0]=V;
3262 }
3263 }
3264 }
3265 //
3266 Standard_Real U1_3 = (u3[0]+u3[1]+u3[2])/3.0;
3267 Standard_Real V1_3 = (v3[0]+v3[1]+v3[2])/3.0;
3268
3269 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3270 for(U=U0,i=0; i<SU2; i++,U+=du2) {
3271 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
3272 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3273 Standard_Real t = aIPD.xP2(i, j).SquareDistance(P);
3274 //-- On remplace la plus grande valeur ds Dist3[.] par la val courante
3275 if(Dist3[0]<Dist3[1]) {
3276 Standard_Real z;
3277 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3278 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3279 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3280 }
3281 if(Dist3[1]<Dist3[2]) {
3282 Standard_Real z;
3283 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3284 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3285 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3286 }
3287 if(Dist3[0]<Dist3[1]) {
3288 Standard_Real z;
3289 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3290 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3291 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3292 }
3293 //-- la plus grande valeur est dans Dist3[0]
3294 if(t<Dist3[0]) {
3295 Dist3[0]=t; u3[0]=U; v3[0]=V;
3296 }
3297 }
3298 }
3299 //
3300 Standard_Real U2_3 = (u3[0]+u3[1]+u3[2])/3.0;
3301 Standard_Real V2_3 = (v3[0]+v3[1]+v3[2])/3.0;
3302 //
3303 IntSurf_PntOn2S POn2S;
3304 POn2S.SetValue(P,U1_3,V1_3,U2_3,V2_3);
3305 LineOn2S->Add(POn2S);
3306 Compt++;
7fd59977 3307 }
c66d7156
P		 3308 }
3309 }
3310 while(ok);
7fd59977 3311}
a7dd5d0f 3312
3313//==================================================================================
3314// function : IsPointOnLine
3315// purpose :
3316//==================================================================================
3317
3318Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S &thePOn2S,
3319 const Handle(IntPatch_WLine) &theWLine,
3320 const Standard_Real Deflection)
3321{
3322 Standard_Boolean isOnLine = Standard_False;
3323 Standard_Real Deflection2 = Deflection*Deflection;
3324 Standard_Real pu1, pu2, pv1, pv2;
3325
3326 thePOn2S.Parameters(pu1, pv1, pu2, pv2);
3327
3328 if ((theWLine->IsOutSurf1Box(gp_Pnt2d(pu1, pv1)) == Standard_False) &&
00302ba4 3329 (theWLine->IsOutSurf2Box(gp_Pnt2d(pu2, pv2)) == Standard_False) &&
3330 (theWLine->IsOutBox(thePOn2S.Value()) == Standard_False)) {
3331 const Standard_Integer NbPntOn2SOnLine = theWLine->NbPnts();
3332 Standard_Integer ll;
3333
3334 for (ll=1; ll < NbPntOn2SOnLine && !isOnLine; ll++) {
3335 const gp_Pnt &Pa = theWLine->Point(ll).Value();
3336 const gp_Pnt &Pb = theWLine->Point(ll+1).Value();
3337 const gp_Pnt &PStart = thePOn2S.Value();
3338 const gp_Vec AM(Pa, PStart);
3339 const gp_Vec MB(PStart,Pb);
3340 const Standard_Real AMMB = AM.Dot(MB);
3341
3342 if(AMMB > 0.0) {
3343 gp_Dir ABN(Pb.X() - Pa.X(), Pb.Y() - Pa.Y(), Pb.Z() - Pa.Z());
3344 Standard_Real lan = ABN.X()*AM.X() + ABN.Y()*AM.Y() + ABN.Z()*AM.Z();
3345 gp_Vec AH(lan*ABN.X(), lan*ABN.Y(), lan*ABN.Z());
3346 gp_Vec HM(AM.X() - AH.X(), AM.Y() - AH.Y(), AM.Z() - AH.Z());
3347 Standard_Real d = 0.0;
3348
3349 if(HM.X() < Deflection) {
3350 d += HM.X()*HM.X();
3351
3352 if(HM.Y() < Deflection) {
3353 d += HM.Y()*HM.Y();
3354
3355 if(HM.Z() < Deflection) {
3356 d += HM.Z()*HM.Z();
3357 } else {
3358 d = Deflection2;
3359 }
a7dd5d0f 3360 } else {
3361 d = Deflection2;
3362 }
3363 } else {
3364 d = Deflection2;
3365 }
a7dd5d0f 3366
00302ba4 3367 if(d < Deflection2) {
3368 isOnLine = Standard_True;
3369 }
a7dd5d0f 3370 } else {
00302ba4 3371 Standard_Real dab = Pa.SquareDistance(Pb);
3372 Standard_Real dap = Pa.SquareDistance(PStart);
a7dd5d0f 3373
00302ba4 3374 if(dap < dab) {
a7dd5d0f 3375 isOnLine = Standard_True;
00302ba4 3376 } else {
3377 Standard_Real dbp = Pb.SquareDistance(PStart);
3378
3379 if(dbp < dab) {
3380 isOnLine = Standard_True;
3381 }
a7dd5d0f 3382 }
3383 }
3384 }
a7dd5d0f 3385 }
3386
3387 return isOnLine;
3388}
3389
3390//==================================================================================
3391// function : AddWLine
3392// purpose :
3393//==================================================================================
3394
3395void AddWLine(IntPatch_SequenceOfLine &theLines,
3396 const Handle(IntPatch_WLine) &theWLine,
3397 const Standard_Real Deflection)
3398{
3399 Standard_Integer i = 1;
3400 Standard_Integer aNbLines = theLines.Length();
3401 Standard_Boolean isToRemove;
3402
3403 // Check each line of theLines if it is on theWLine.
3404 while (i <= aNbLines) {
3405 Handle(IntPatch_WLine) aWLine =
3406 Handle(IntPatch_WLine)::DownCast(theLines.Value(i));
00302ba4 3407
a7dd5d0f 3408 isToRemove = Standard_False;
3409
3410 if (aWLine.IsNull() == Standard_False) {
3411 // Check the middle point.
3412 Standard_Integer aMidIndex = (aWLine->NbPnts() + 1)/2;
3413
3414 if (aMidIndex > 0) {
3415 const IntSurf_PntOn2S &aPnt = aWLine->Point(aMidIndex);
3416
3417 if (IsPointOnLine(aPnt, theWLine, Deflection)) {
3418 // Middle point is on theWLine. Check vertices.
3419 isToRemove = Standard_True;
3420
3421 Standard_Integer j;
3422 const Standard_Integer aNbVtx = aWLine->NbVertex();
3423
3424 for (j = 1; j <= aNbVtx; j++) {
3425 const IntPatch_Point &aPoint = aWLine->Vertex(j);
3426
3427 if (!IsPointOnLine(aPoint.PntOn2S(), theWLine, Deflection)) {
3428 isToRemove = Standard_False;
3429 break;
3430 }
3431 }
3432 }
3433 }
3434 }
3435
3436 if (isToRemove) {
3437 theLines.Remove(i);
3438 aNbLines--;
3439 } else {
3440 i++;
3441 }
3442 }
3443
3444 // Add theWLine to the sequence of lines.
3445 theLines.Append(theWLine);
3446}
Open CASCADE Technology repository