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0024585: Wrong pcurve of the section curve
[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()) {
c2c2f2b6 1374 if(PW.NbPoints()>2)
1375 {
1376 //Try to extend the intersection line to boundary, if it is possibly
1377 Standard_Boolean hasBeenAdded = PW.PutToBoundary(Surf1, Surf2);
1378
c66d7156
P		 1379 RejetLigne = Standard_False;
1380 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 1381 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
1382 Point3dFin = PointFin.Value();
c66d7156
P		 1383 for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
1384 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
a7dd5d0f 1385
1386 // Check end point if it is on existing line.
1387 // Start point is checked before.
1388 if (IsPointOnLine(PointFin, verwline, Deflection)) {
1389 RejetLigne = Standard_True;
1390 break;
1391 }
1392
c66d7156
P		 1393 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
1394 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
1395 if(Point3dDebut.Distance(verPointDebut.Value()) <= TolTangency) {
1396 if(Point3dFin.Distance(verPointFin.Value()) <= TolTangency)
1397 RejetLigne = Standard_True;
1398 }
1399 }
00302ba4 1400
c66d7156
P		 1401 if(!RejetLigne) {
1402 IntSurf_TypeTrans trans1,trans2;
1403 Standard_Real locu,locv;
1404 gp_Vec norm1,norm2,d1u,d1v;
1405 gp_Pnt ptbid;
1406 Standard_Integer indextg;
1407 gp_Vec tgline(PW.TangentAtLine(indextg));
1408 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1409 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1410 norm1 = d1u.Crossed(d1v);
1411 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1412 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1413 norm2 = d1u.Crossed(d1v);
1414 if( tgline.DotCross(norm2,norm1) >= 0. ) {
1415 trans1 = IntSurf_Out;
1416 trans2 = IntSurf_In;
1417 }
1418 else {
1419 trans1 = IntSurf_In;
1420 trans2 = IntSurf_Out;
1421 }
00302ba4 1422
c66d7156
P		 1423 Standard_Real TolTang = TolTangency;
1424 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1425 if (RestrictLine){
c2c2f2b6 1426 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang,hasBeenAdded);
1427 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang,hasBeenAdded);
c66d7156 1428 }
00302ba4 1429
c66d7156
P		 1430 if(wline->NbVertex() == 0) {
1431 IntPatch_Point vtx;
1432 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1433 POn2S.Parameters(pu1,pv1,pu2,pv2);
1434 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1435 vtx.SetParameters(pu1,pv1,pu2,pv2);
1436 vtx.SetParameter(1);
1437 wline->AddVertex(vtx);
00302ba4 1438
c66d7156
P		 1439 POn2S = PW.Line()->Value(wline->NbPnts());
1440 POn2S.Parameters(pu1,pv1,pu2,pv2);
1441 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1442 vtx.SetParameters(pu1,pv1,pu2,pv2);
1443 vtx.SetParameter(wline->NbPnts());
1444 wline->AddVertex(vtx);
1445 }
7fd59977 1446
c66d7156
P		 1447 Standard_Integer slinlen = SLin.Length();
1448 if( slinlen > 0 ) {
1449 Standard_Integer cnbV = wline->NbVertex();
1450 Standard_Integer ciV;
1451 for( ciV = 1; ciV <= cnbV; ciV++ ) {
1452 Standard_Real pntDMin = 1.e+100;
1453 Standard_Integer VDMin = 0;
1454 Standard_Integer WLDMin = 0;
1455 gp_Pnt cPV = wline->Vertex(ciV).Value();
1456 Standard_Integer iL;
1457 for( iL = 1; iL <= slinlen; iL++) {
1458 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
1459 IntPatch_IType aType = aSLine->ArcType();
1460 if( aType != IntPatch_Walking)
1461 continue;
1462 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
1463 Standard_Integer tnbV = aWLine->NbVertex();
1464 Standard_Integer tiV;
1465 for( tiV = 1; tiV <= tnbV; tiV++ ) {
1466 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
1467 Standard_Real tDistance = cPV.Distance(tPV);
1468 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
1469 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
1470 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
1471 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
1472 Standard_Real RmaxS1 = Max(uRs1,vRs1);
1473 Standard_Real RmaxS2 = Max(uRs2,vRs2);
1474 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4) {
1475 if( pntDMin > tDistance && tDistance > 1.e-9) {
1476 pntDMin = tDistance;
1477 VDMin = tiV;
1478 WLDMin = iL;
1479 }
1480 }
1481 }
1482 }
00302ba4 1483
c66d7156
P		 1484 if( VDMin != 0 ) {
1485 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
1486 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
1487 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
1488 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
1489 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
1490 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
1491 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
1492 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
00302ba4 1493
c66d7156
P		 1494 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
1495 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
1496 Standard_Integer cNbP = wline->NbPnts();
00302ba4 1497
c66d7156
P		 1498 TColStd_SequenceOfInteger VPold;
1499 Standard_Integer iPo;
1500 for( iPo = 1; iPo <= cnbV; iPo++ ) {
1501 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
1502 Standard_Integer IPo = (Standard_Integer) Po;
1503 VPold.Append(IPo);
1504 }
00302ba4 1505
c66d7156
P		 1506 Standard_Boolean removeNext = Standard_False;
1507 Standard_Boolean removePrev = Standard_False;
1508 if( ciV == 1) {
1509 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
1510 if(dPar > 10) {
00302ba4 1511 removeNext = Standard_True;
1512 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1513 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1514 }
c66d7156
P		 1515 }
1516 else if( ciV == cnbV) {
1517 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
1518 if(dPar > 10) {
1519 removePrev = Standard_True;
1520 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
1521 }
1522 }
1523 else {
1524 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
1525 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
1526 if(dParMi > 10) {
1527 removePrev = Standard_True;
1528 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
1529 }
1530 if(dParMa > 10) {
1531 removeNext = Standard_True;
1532 for( iPo = (ciV+1); iPo <= cnbV; iPo++ ) {
1533 if(dParMi > 10)
1534 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
1535 else
1536 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1537 }
1538 }
1539 else {
1540 if(dParMi > 10)
1541 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
1542 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
1543 }
1544 }
1545 Standard_Integer pI = (Standard_Integer) ciVpar;
00302ba4 1546
c66d7156
P		 1547 Standard_Integer iP;
1548 for( iP = 1; iP <= cNbP; iP++) {
1549 if( pI == iP )
b1c5c4e6 1550 {
1551 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
1552 newL2s->Add(newPnt);
1553 }
c66d7156
P		 1554 else if(removeNext && iP == (pI + 1))
1555 continue;
1556 else if(removePrev && iP == (pI - 1))
1557 continue;
1558 else
1559 newL2s->Add(wline->Point(iP));
1560 }
00302ba4 1561
c66d7156
P		 1562 IntPatch_Point newVtx;
1563 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
1564 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
1565 newVtx.SetParameters(u21,v21,u22,v22);
1566 newVtx.SetParameter(VPold.Value(ciV));
00302ba4 1567
c66d7156 1568 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
00302ba4 1569
c66d7156
P		 1570 Standard_Integer iV;
1571 for( iV = 1; iV <= cnbV; iV++ ) {
1572 if( iV == ciV )
1573 NWLine->AddVertex(newVtx);
1574 else {
1575 IntPatch_Point theVtx = wline->Vertex(iV);
1576 theVtx.SetParameter(VPold.Value(iV));
1577 NWLine->AddVertex(theVtx);
1578 }
1579 }
00302ba4 1580
c66d7156
P		 1581 wline = NWLine;
1582 }
1583 }
1584 }// SLin.Length > 0
00302ba4 1585
a7dd5d0f 1586 AddWLine(SLin, wline, Deflection);
c66d7156
P		 1587 empt = Standard_False;
1588 }// !RejetLigne
1589 }// PW points > 2
1590 }// done is True
1591 }// dminiPointLigne > SeuildPointLigne
1592 }// HasStartPoint
1593 }// for( IterLOP ...
1594 done = Standard_True;
1595 return;
1596}
1597//=======================================================================
1598//function : Perform
1599//purpose :
1600//=======================================================================
1601void IntPatch_PrmPrmIntersection::Perform(const Handle(Adaptor3d_HSurface)& Surf1,
00302ba4 1602 const Handle(Adaptor3d_TopolTool)& D1,
1603 const Handle(Adaptor3d_HSurface)& Surf2,
1604 const Handle(Adaptor3d_TopolTool)& D2,
1605 const Standard_Real U1Depart,
1606 const Standard_Real V1Depart,
1607 const Standard_Real U2Depart,
1608 const Standard_Real V2Depart,
1609 const Standard_Real TolTangency,
1610 const Standard_Real Epsilon,
1611 const Standard_Real Deflection,
1612 const Standard_Real Increment)
1613{
1614 // Standard_Integer NbU1 = D1->NbSamplesU();
1615 // Standard_Integer NbV1 = D1->NbSamplesV();
1616 // Standard_Integer NbU2 = D2->NbSamplesU();
1617 // Standard_Integer NbV2 = D2->NbSamplesV();
7fd59977 1618
c66d7156
P		 1619 //-- Traitement des Lignes de sections
1620 empt = Standard_True;
1621 done = Standard_True;
1622 SLin.Clear();
00302ba4 1623
c66d7156 1624 //------------------------------------------------------------
7fd59977 1625
c66d7156 1626 Standard_Real pu1,pu2,pv1,pv2;
00302ba4 1627
c66d7156 1628 TColStd_Array1OfReal StartParams(1,4);
00302ba4 1629
1630 // Standard_Integer MaxOscill = NbU1;
1631 // if(MaxOscill < NbU2) MaxOscill=NbU2;
1632 // if(MaxOscill < NbV1) MaxOscill=NbV1;
1633 // if(MaxOscill < NbV2) MaxOscill=NbV2;
1634
1635 // Standard_Real nIncrement=Increment;
1636 // if(MaxOscill>10) {
1637 // #ifdef DEB
1638 // cout<<"\n IntPatch_PrmPrmIntersection.gxx : Increment:"<<Increment<<" -> "<<Increment/(0.5*MaxOscill)<<endl;
1639 // #endif
1640 // nIncrement/=0.5*MaxOscill;
1641 // }
1642
c66d7156 1643 IntPatch_ThePWalkingInter PW(Surf1,Surf2,
00302ba4 1644 TolTangency,
1645 Epsilon,
1646 Deflection,
1647 Increment); //nIncrement);
1648
1649
c66d7156
P		 1650 //Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
1651 //Standard_Real incidence;
1652 //Standard_Real dminiPointLigne;
00302ba4 1653
c66d7156 1654 Standard_Boolean HasStartPoint;//,RejetLigne;
00302ba4 1655
c66d7156 1656 IntSurf_PntOn2S StartPOn2S;
00302ba4 1657
c66d7156 1658 //Standard_Integer ver;
00302ba4 1659
c66d7156 1660 gp_Pnt Point3dDebut,Point3dFin;
00302ba4 1661
c66d7156 1662 //------------------------------------------------------------
00302ba4 1663
c66d7156
P		 1664 StartParams(1) = U1Depart;
1665 StartParams(2) = V1Depart;
1666 StartParams(3) = U2Depart;
1667 StartParams(4) = V2Depart;
00302ba4 1668
c66d7156
P		 1669 //-----------------------------------------------------------------------
1670 //-- Calcul du premier point de cheminement a partir du point approche --
1671 //-----------------------------------------------------------------------
1672 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
1673 if(HasStartPoint) {
1674 //-------------------------------------------------
1675 //-- Un point a ete trouve --
1676 //-- On verifie qu il n appartient pas --
1677 //-- a une ligne de cheminement deja calculee. --
1678 //-------------------------------------------------
00302ba4 1679
c66d7156
P		 1680 PW.Perform(StartParams);
1681 if(PW.IsDone()) {
00302ba4 1682
c66d7156
P		 1683 Point3dDebut = PW.Value(1).Value();
1684 Point3dFin = PW.Value(PW.NbPoints()).Value();
7fd59977 1685
c66d7156
P		 1686 IntSurf_TypeTrans trans1,trans2;
1687 Standard_Real locu,locv;
1688 gp_Vec norm1,norm2,d1u,d1v;
1689 gp_Pnt ptbid;
1690 Standard_Integer indextg;
1691 gp_Vec tgline(PW.TangentAtLine(indextg));
1692 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
1693 Surf1->D1(locu,locv,ptbid,d1u,d1v);
1694 norm1 = d1u.Crossed(d1v);
1695 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
1696 Surf2->D1(locu,locv,ptbid,d1u,d1v);
1697 norm2 = d1u.Crossed(d1v);
1698 if (tgline.DotCross(norm2,norm1)>0.) {
00302ba4 1699 trans1 = IntSurf_Out;
1700 trans2 = IntSurf_In;
c66d7156
P		 1701 }
1702 else {
00302ba4 1703 trans1 = IntSurf_In;
1704 trans2 = IntSurf_Out;
c66d7156 1705 }
00302ba4 1706
1707
1708
c66d7156
P		 1709 Standard_Real TolTang = TolTangency;
1710 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
1711 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
1712 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
00302ba4 1713
c66d7156
P		 1714 //---------------
1715 if(wline->NbVertex() == 0) {
00302ba4 1716 IntPatch_Point vtx;
1717 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
1718 POn2S.Parameters(pu1,pv1,pu2,pv2);
1719 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
1720 vtx.SetParameters(pu1,pv1,pu2,pv2);
1721 vtx.SetParameter(1);
1722 wline->AddVertex(vtx);
1723
1724 POn2S = PW.Line()->Value(wline->NbPnts());
1725 POn2S.Parameters(pu1,pv1,pu2,pv2);
1726 vtx.SetValue(Point3dFin,TolTang,Standard_False);
1727 vtx.SetParameters(pu1,pv1,pu2,pv2);
1728 vtx.SetParameter(wline->NbPnts());
1729 wline->AddVertex(vtx);
c66d7156 1730 }
00302ba4 1731
c66d7156
P		 1732 //---------------
1733 SLin.Append(wline);
1734 empt = Standard_False;
00302ba4 1735
c66d7156
P		 1736 }
1737 }
1738}
1739//==================================================================================
1740// function : AdjustOnPeriodic
1741// purpose :
1742//==================================================================================
1743void AdjustOnPeriodic(const Handle(Adaptor3d_HSurface)& Surf1,
00302ba4 1744 const Handle(Adaptor3d_HSurface)& Surf2,
1745 IntPatch_SequenceOfLine& aSLin)
c66d7156
P		 1746{
1747 Standard_Boolean bIsPeriodic[4], bModified, bIsNull, bIsPeriod;
1748 Standard_Integer i, j, k, aNbLines, aNbPx, aIndx, aIndq;
1749 Standard_Real aPeriod[4], dPeriod[4], ux[4], uq[4], aEps, du;
1750 //
1751 aEps=Precision::Confusion();
1752 //
1753 for (k=0; k<4; ++k) {
1754 aPeriod[k]=0.;
1755 }
1756 //
1757 bIsPeriodic[0]=Surf1->IsUPeriodic();
1758 bIsPeriodic[1]=Surf1->IsVPeriodic();
1759 bIsPeriodic[2]=Surf2->IsUPeriodic();
1760 bIsPeriodic[3]=Surf2->IsVPeriodic();
1761 //
1762 if (bIsPeriodic[0]){
1763 aPeriod[0]=Surf1->UPeriod();
1764 }
1765 if (bIsPeriodic[1]){
1766 aPeriod[1]=Surf1->VPeriod();
1767 }
1768 if (bIsPeriodic[2]){
1769 aPeriod[2]=Surf2->UPeriod();
1770 }
1771 if (bIsPeriodic[3]){
1772 aPeriod[3]=Surf2->VPeriod();
1773 }
1774 //
1775 for (k=0; k<4; ++k) {
1776 dPeriod[k]=0.25*aPeriod[k];
1777 }
1778 //
1779 aNbLines=aSLin.Length();
1780 for (i=1; i<=aNbLines; ++i) {
1781 Handle(IntPatch_WLine) aIL=Handle(IntPatch_WLine)::DownCast(aSLin.Value(i));
1782 Handle(IntSurf_LineOn2S) aL=aIL->Curve();
1783
1784 aNbPx=aL->NbPoints();
1785 if (aNbPx<10) {
1786 continue;
1787 }
1788 //
1789 for (j=0; j<2; ++j) {
1790 bModified=Standard_False;
1791 aIndx=1;
1792 aIndq=2;
1793 if (j) {
00302ba4 1794 aIndx=aNbPx;
1795 aIndq=aNbPx-1;
c66d7156
P		 1796 }
1797 //
1798 const IntSurf_PntOn2S& aPSx=aL->Value(aIndx);
1799 const IntSurf_PntOn2S& aPSq=aL->Value(aIndq);
1800 //
1801 aPSx.Parameters(ux[0], ux[1], ux[2], ux[3]);
1802 aPSq.Parameters(uq[0], uq[1], uq[2], uq[3]);
1803 //
1804 for (k=0; k<4; ++k) {
00302ba4 1805 bIsNull=Standard_False;
1806 bIsPeriod=Standard_False;
1807 //
1808 if (!bIsPeriodic[k]) {
1809 continue;
1810 }
1811 //
1812 if (fabs(ux[k])<aEps) {
1813 bModified=Standard_True;
1814 bIsNull=Standard_True;
1815 }
1816 //
1817 else if (fabs(ux[k]-aPeriod[k])<aEps) {
1818 bModified=Standard_True;
1819 bIsPeriod=Standard_True;
1820 }
1821 //
1822 if (bModified) {
1823 du=fabs(ux[k]-uq[k]);
1824 if (du > dPeriod[k]) {
1825 if(bIsNull){
1826 ux[k]=aPeriod[k];
1827 }
1828 if(bIsPeriod) {
1829 ux[k]=0.;
1830 }
1831 }
1832 }
c66d7156
P		 1833 }//for (k=0; k<4; ++k)
1834 if (bModified) {
00302ba4 1835 IntSurf_PntOn2S aPntOn2S;
1836 //
1837 aPntOn2S=aPSx;
1838 aPntOn2S.SetValue(ux[0], ux[1], ux[2], ux[3]);
1839 aL->Value(aIndx, aPntOn2S);
c66d7156
P		 1840 }
1841 }//for (j=0; j<1; ++j) {
1842 }//for (i=1; i<=aNbLines; ++i)
1843}
b1c5c4e6 1844
1845//==================================================================================
1846// function : MakeNewPoint
1847// purpose :
1848//==================================================================================
1849IntSurf_PntOn2S MakeNewPoint(const IntSurf_PntOn2S& replacePnt,
1850 const IntSurf_PntOn2S& oldPnt,
1851 const Standard_Real* Periods)
1852{
1853 IntSurf_PntOn2S NewPoint;
1854 NewPoint.SetValue(replacePnt.Value());
00302ba4 1855
b1c5c4e6 1856 Standard_Real OldParams[4], NewParams[4];
1857 oldPnt.Parameters(OldParams[0], OldParams[1], OldParams[2], OldParams[3]);
1858 replacePnt.Parameters(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
1859
1860 Standard_Integer i;
1861 for (i = 0; i < 4; i++)
1862 if (Periods[i] != 0.)
1863 {
1864 if (Abs(NewParams[i] - OldParams[i]) >= 0.5*Periods[i])
1865 {
1866 if (NewParams[i] < OldParams[i])
1867 NewParams[i] += Periods[i];
1868 else
1869 NewParams[i] -= Periods[i];
1870 }
1871 }
1872
00302ba4 1873 NewPoint.SetValue(NewParams[0], NewParams[1], NewParams[2], NewParams[3]);
1874 return NewPoint;
b1c5c4e6 1875}
1876
c66d7156
P		 1877//==================================================================================
1878// function : Perform
1879// purpose : base SS Int. function
1880//==================================================================================
1881void IntPatch_PrmPrmIntersection::Perform (const Handle(Adaptor3d_HSurface)& Surf1,
00302ba4 1882 const Handle(Adaptor3d_TopolTool)& D1,
1883 const Handle(Adaptor3d_HSurface)& Surf2,
1884 const Handle(Adaptor3d_TopolTool)& D2,
1885 const Standard_Real TolTangency,
1886 const Standard_Real Epsilon,
1887 const Standard_Real Deflection,
1888 const Standard_Real Increment,
c66d7156
P		 1889 const Standard_Boolean ClearFlag)
1890{
00302ba4 1891 Standard_Integer Limit = 2500;
1892 Standard_Integer NbU1 = 10, NbV1 = 10, NbU2 = 10, NbV2 = 10;
c66d7156 1893 //
00302ba4 1894 D1->SamplePnts(Deflection, NbU1, NbV1);
1895 D2->SamplePnts(Deflection, NbU2, NbV2);
c66d7156
P		 1896 //
1897 NbU1 = D1->NbSamplesU();
1898 NbV1 = D1->NbSamplesV();
1899 NbU2 = D2->NbSamplesU();
1900 NbV2 = D2->NbSamplesV();
00302ba4 1901
c66d7156
P		 1902 TColStd_Array1OfReal anUpars1(1, NbU1), aVpars1(1, NbV1);
1903 TColStd_Array1OfReal anUpars2(1, NbU2), aVpars2(1, NbV2);
1904 //
1905 D1->UParameters(anUpars1);
1906 D1->VParameters(aVpars1);
1907 D2->UParameters(anUpars2);
1908 D2->VParameters(aVpars2);
b1c5c4e6 1909
1910 Standard_Real Periods [4];
1911 Periods[0] = (Surf1->IsUPeriodic())? Surf1->UPeriod() : 0.;
1912 Periods[1] = (Surf1->IsVPeriodic())? Surf1->VPeriod() : 0.;
1913 Periods[2] = (Surf2->IsUPeriodic())? Surf2->UPeriod() : 0.;
1914 Periods[3] = (Surf2->IsVPeriodic())? Surf2->VPeriod() : 0.;
00302ba4 1915
c66d7156 1916 //---------------------------------------------
00302ba4 1917 if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit))
1918 {
c66d7156 1919 empt = Standard_True;
00302ba4 1920 if (ClearFlag)
1921 {
c66d7156
P		 1922 SLin.Clear();
1923 }
1924 //
1925 IntPolyh_Intersection* pInterference = NULL;
1926
00302ba4 1927 if ( D1->IsUniformSampling() || D2->IsUniformSampling() )
1928 {
c66d7156
P		 1929 pInterference = new IntPolyh_Intersection(Surf1,NbU1,NbV1,Surf2,NbU2,NbV2);
1930 }
00302ba4 1931 else
1932 {
c66d7156 1933 pInterference = new IntPolyh_Intersection(Surf1, anUpars1, aVpars1,
00302ba4 1934 Surf2, anUpars2, aVpars2 );
c66d7156 1935 }
00302ba4 1936
1937 if ( !pInterference )
1938 {
c66d7156
P		 1939 done = Standard_False;
1940 return;
1941 }
1942 //
1943 IntPolyh_Intersection& Interference = *pInterference;
1944 //
1945 done = Interference.IsDone();
00302ba4 1946 if( !done )
1947 {
1948 if (pInterference)
1949 {
1950 delete pInterference;
1951 pInterference = NULL;
c66d7156 1952 }
00302ba4 1953
c66d7156
P		 1954 return;
1955 }
00302ba4 1956
c66d7156
P		 1957 Standard_Integer nbLigSec = Interference.NbSectionLines();
1958 Standard_Integer nbTanZon = Interference.NbTangentZones();
1959 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment;
1960
302f96fb 1961 Standard_Integer NbLigCalculee = 0, ver;
00302ba4 1962 Standard_Real pu1,pu2,pv1,pv2, incidence, dminiPointLigne;
1963 Standard_Boolean HasStartPoint = Standard_False, RejectLine = Standard_False;
c66d7156
P		 1964 IntSurf_PntOn2S StartPOn2S;
1965 gp_Pnt Point3dDebut,Point3dFin;
1966
1967 TColStd_Array1OfReal StartParams(1,4);
1968 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,Increment);
1969
00302ba4 1970 if(nbLigSec>=1)
1971 {
c66d7156 1972 Standard_Integer *TabL = new Standard_Integer [nbLigSec+1];
00302ba4 1973 for(Standard_Integer ls=1; ls<=nbLigSec; ++ls)
1974 {
1975 TabL[ls]=ls;
c66d7156
P		 1976 }
1977 //----------------------------------------1.1
00302ba4 1978 {
1979 Standard_Boolean triok;
1980 Standard_Integer nb_A, nb_B, tyu;
1981 do
1982 {
1983 triok=Standard_True;
1984 for(Standard_Integer b = 2; b <= nbLigSec; ++b )
1985 {
1986 nb_B = Interference.NbPointsInLine(TabL[b]);
1987 nb_A = Interference.NbPointsInLine(TabL[b-1]);
1988
1989 if( nb_B > nb_A )
1990 {
1991 tyu=TabL[b];
1992 TabL[b]=TabL[b-1];
1993 TabL[b-1]=tyu;
1994 triok=Standard_False;
1995 }
1996 }
1997 }
1998 while(triok==Standard_False);
1999 }
2000
c66d7156
P		 2001 //----------------------------------------
2002 // 1.2 For the line "ls" get 2D-bounds U,V for surfaces 1,2
2003 //
00302ba4 2004 for(Standard_Integer ls = 1; ls <= nbLigSec; ++ls)
2005 {
2006 Standard_Integer nbp = Interference.NbPointsInLine(TabL[ls]);
2007 if (!nbp)
2008 {
2009 continue;
2010 }
2011 //
2012 Standard_Integer *TabPtDep = new Standard_Integer [nbp+1];
2013 for(Standard_Integer ilig = 1; ilig <= nbp; ++ilig )
2014 {
2015 TabPtDep[ilig]=0;
2016 }
2017 //
2018 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2019 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
2020 Standard_Real _x,_y,_z;
2021 //
2022 Interference.GetLinePoint(TabL[ls], 1, _x, _y, _z,
2023 UminLig1, VminLig1, UminLig2, VminLig2,
2024 incidence);
2025
2026 UmaxLig1=UminLig1;
2027 VmaxLig1=VminLig1;
2028 UmaxLig2=UminLig2;
2029 VmaxLig2=VminLig2;
2030 //
2031 for(Standard_Integer ilig = 2; ilig <= nbp; ilig++ )
2032 {
2033 Standard_Real U1, U2, V1, V2;
2034 Interference.GetLinePoint(TabL[ls],ilig,_x,_y,_z,U1,V1,U2,V2,incidence);
2035 //
2036 if(U1>UmaxLig1) UmaxLig1=U1;
2037 if(V1>VmaxLig1) VmaxLig1=V1;
2038 if(U2>UmaxLig2) UmaxLig2=U2;
2039 if(V2>VmaxLig2) VmaxLig2=V2;
2040 //
2041 if(U1<UminLig1) UminLig1=U1;
2042 if(V1<VminLig1) VminLig1=V1;
2043 if(U2<UminLig2) UminLig2=U2;
2044 if(V2<VminLig2) VminLig2=V2;
2045 }//for( ilig = 2; ilig <= nbp; ilig++ ) {
2046 //
2047 //----------------------------------------
2048 // 1.3
2049 Standard_Integer nbps2 = (nbp>3)? (nbp/2) : 1;
2050 Standard_Integer NombreDePointsDeDepartDuCheminement = 0;
2051 Standard_Boolean lignetrouvee=Standard_False;
2052 const Standard_Integer NbDePointsDeDepartDuChmLimit = 5;
2053 //
2054 do
2055 {
2056 NombreDePointsDeDepartDuCheminement++;
2057 switch (NombreDePointsDeDepartDuCheminement)
2058 {
2059 case 1:
2060 nbps2 = (nbp > 1) ? nbp/2 : 1;
2061 if(nbp<3)
2062 NombreDePointsDeDepartDuCheminement = NbDePointsDeDepartDuChmLimit;
2063
2064 break;
2065 case 2:
2066 nbps2 = 1;
2067 break;
2068 case 3:
2069 nbps2 = nbp-1;
2070 break;
2071
2072 case 4:
2073 nbps2 = 3 * nbp / 4;
2074 break;
2075
2076 case 5:
2077 nbps2 = nbp / 4;
2078 break;
2079 default:
2080 nbps2 = NombreDePointsDeDepartDuCheminement-3;
2081 NombreDePointsDeDepartDuCheminement++;
2082 }
2083
2084 //
2085 if(TabPtDep[nbps2] == 0)
2086 {
2087 Standard_Real U1, U2, V1, V2;
2088
2089 TabPtDep[nbps2] = 1;
2090 Interference.GetLinePoint(TabL[ls],nbps2,_x,_y,_z,U1,V1,U2,V2,incidence);
2091
2092 StartParams(1) = U1;
2093 StartParams(2) = V1;
2094 StartParams(3) = U2;
2095 StartParams(4) = V2;
2096
2097 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2098 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2099 if(HasStartPoint)
2100 {
2101 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2102 NbLigCalculee = SLin.Length();
2103 Standard_Integer l;
2104 for( l = 1; (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne); l++)
2105 {
2106 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2107
2108 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2109 {
a7dd5d0f 2110 dminiPointLigne = 0.0;
2111 }
00302ba4 2112 }// for( l ...
2113
2114 if(dminiPointLigne > SeuildPointLigne)
2115 {
2116 PW.Perform(StartParams, UminLig1, VminLig1, UminLig2, VminLig2,
2117 UmaxLig1, VmaxLig1, UmaxLig2, VmaxLig2);
2118
2119 //
2120 Standard_Boolean bPWIsDone;
2121 Standard_Integer iPWNbPoints, aNbPointsVer;
2122 Standard_Real aD11, aD12, aD21, aD22, aDx;
2123 //
2124 bPWIsDone=PW.IsDone();
2125
2126 if(bPWIsDone)
2127 {
2128 iPWNbPoints=PW.NbPoints();
2129 //
2130 if( iPWNbPoints > 2 )
2131 {
c2c2f2b6 2132 //Try to extend the intersection line to boundary, if it is possibly
2133 Standard_Boolean hasBeenAdded = PW.PutToBoundary(Surf1, Surf2);
2134
00302ba4 2135 const Standard_Integer aMinNbPoints = 40;
2136 if(iPWNbPoints < aMinNbPoints)
2137 {
c2c2f2b6 2138 hasBeenAdded =
2139 PW.SeekAdditionalPoints(Surf1, Surf2, aMinNbPoints) || hasBeenAdded;
00302ba4 2140 iPWNbPoints = PW.NbPoints();
2141 }
2142
2143 RejectLine = Standard_False;
2144 Point3dDebut = PW.Value(1).Value();
2145 Point3dFin = PW.Value(iPWNbPoints).Value();
2146 for( ver = 1; (!RejectLine) && (ver<= NbLigCalculee); ++ver)
2147 {
2148 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2149 //
2150 aNbPointsVer=verwline->NbPnts();
2151 if (aNbPointsVer<3)
2152 {
2153 continue;
2154 }
2155 //
2156 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2157 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2158 //xf
2159 const gp_Pnt& aP21=verPointDebut.Value();
2160 const gp_Pnt& aP22=verPointFin.Value();
2161 //
2162 aD11=Point3dDebut.Distance(aP21);
2163 aD12=Point3dDebut.Distance(aP22);
2164 aD21=Point3dFin.Distance(aP21);
2165 aD22=Point3dFin.Distance(aP22);
2166 //
2167 if((aD11<=TolTangency && aD22<=TolTangency) ||
2168 (aD12<=TolTangency && aD21<=TolTangency))
2169 {
2170 Standard_Integer m, mx;
2171 //
2172 mx=aNbPointsVer/2;
2173 if (aNbPointsVer%2)
2174 {
2175 ++mx;
2176 }
2177 //
2178 const gp_Pnt& aPx=verwline->Point(mx).Value();
2179 for(m=1; m<iPWNbPoints; ++m)
2180 {
2181 const gp_Pnt& aP1=PW.Value(m).Value();
2182 const gp_Pnt& aP2=PW.Value(m+1).Value();
2183 gp_Vec aVec12(aP1, aP2);
2184 if (aVec12.SquareMagnitude()<1.e-20)
2185 {
2186 continue;
2187 }
2188
2189 //
2190 gp_Dir aDir12(aVec12);
2191 gp_Lin aLin12(aP1, aDir12);
2192 aDx=aLin12.Distance(aPx);
2193
2194 //modified by NIZNHY-PKV Tue May 10 11:08:07 2011f
2195 if (aDx<=2.*Epsilon)
2196 {
2197 //if (aDx<=TolTangency) {
2198 //modified by NIZNHY-PKV Tue May 10 11:08:13 2011t
2199
2200 RejectLine = Standard_True;
2201 break;
2202 }
2203 }//for(m=1; m<iPWNbPoints; ++m){
2204 }//if((aD11<=TolTangency && aD22<=TolTangency) ||...
2205 }// for( ver = 1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++) {
2206 //
2207
2208 if(!RejectLine)
2209 {
2210 IntSurf_TypeTrans trans1,trans2;
2211 Standard_Real locu,locv;
2212 gp_Vec norm1,norm2,d1u,d1v;
2213 gp_Pnt ptbid;
2214 Standard_Integer indextg;
2215 gp_Vec tgline(PW.TangentAtLine(indextg));
2216 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2217 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2218 norm1 = d1u.Crossed(d1v);
2219 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2220 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2221 norm2 = d1u.Crossed(d1v);
2222 if( tgline.DotCross(norm2,norm1) >= 0. )
2223 {
2224 trans1 = IntSurf_Out;
2225 trans2 = IntSurf_In;
2226 }
2227 else
2228 {
2229 trans1 = IntSurf_In;
2230 trans2 = IntSurf_Out;
2231 }
2232
2233 Standard_Real TolTang = TolTangency;
2234 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
c2c2f2b6 2235 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang,hasBeenAdded);
2236 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang,hasBeenAdded);
00302ba4 2237
2238 if(wline->NbVertex() == 0)
2239 {
2240 IntPatch_Point vtx;
2241 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2242 POn2S.Parameters(pu1,pv1,pu2,pv2);
2243 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2244 vtx.SetParameters(pu1,pv1,pu2,pv2);
2245 vtx.SetParameter(1);
2246 wline->AddVertex(vtx);
2247
2248 POn2S = PW.Line()->Value(wline->NbPnts());
2249 POn2S.Parameters(pu1,pv1,pu2,pv2);
2250 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2251 vtx.SetParameters(pu1,pv1,pu2,pv2);
2252 vtx.SetParameter(wline->NbPnts());
2253 wline->AddVertex(vtx);
2254 }
2255
2256 lignetrouvee = Standard_True;
2257
2258 Standard_Integer slinlen = SLin.Length();
2259 if( slinlen > 0 )
2260 {
2261 Standard_Integer cnbV = wline->NbVertex();
2262 Standard_Integer ciV;
2263 for( ciV = 1; ciV <= cnbV; ciV++ )
2264 {
2265 Standard_Real pntDMin = 1.e+100;
2266 Standard_Integer VDMin = 0;
2267 Standard_Integer WLDMin = 0;
2268 gp_Pnt cPV = wline->Vertex(ciV).Value();
2269 Standard_Integer iL;
2270 for( iL = 1; iL <= slinlen; iL++)
2271 {
2272 const Handle(IntPatch_Line)& aSLine = SLin.Value(iL);
2273 IntPatch_IType aType = aSLine->ArcType();
2274 if( aType != IntPatch_Walking)
2275 continue;
2276 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
2277 Standard_Integer tnbV = aWLine->NbVertex();
2278 Standard_Integer tiV;
2279 for( tiV = 1; tiV <= tnbV; tiV++ )
2280 {
2281 gp_Pnt tPV = aWLine->Vertex(tiV).Value();
2282 Standard_Real tDistance = cPV.Distance(tPV);
2283 Standard_Real uRs1 = Surf1->Surface().UResolution(tDistance);
2284 Standard_Real vRs1 = Surf1->Surface().VResolution(tDistance);
2285 Standard_Real uRs2 = Surf2->Surface().UResolution(tDistance);
2286 Standard_Real vRs2 = Surf2->Surface().VResolution(tDistance);
2287 Standard_Real RmaxS1 = Max(uRs1,vRs1);
2288 Standard_Real RmaxS2 = Max(uRs2,vRs2);
2289 if(RmaxS1 < 1.e-4 && RmaxS2 < 1.e-4)
2290 {
2291 if( pntDMin > tDistance && tDistance > 1.e-9)
2292 {
2293 pntDMin = tDistance;
2294 VDMin = tiV;
2295 WLDMin = iL;
2296 }
2297 }
2298 }
2299 }
2300
2301 if( VDMin != 0 )
2302 {
2303 const Handle(IntPatch_Line)& aSLine = SLin.Value(WLDMin);
2304 const Handle(IntPatch_WLine)& aWLine = (*((Handle(IntPatch_WLine)*)&aSLine));
2305 Standard_Integer tiVpar = (Standard_Integer)aWLine->Vertex(VDMin).ParameterOnLine();
2306 Standard_Integer ciVpar = (Standard_Integer)wline->Vertex(ciV).ParameterOnLine();
2307 Standard_Real u11 = 0., u12 = 0., v11 = 0., v12 = 0.;
2308 Standard_Real u21 = 0., u22 = 0., v21 = 0., v22 = 0.;
2309 wline->Point(ciVpar).Parameters(u11,v11,u12,v12);
2310 aWLine->Point(tiVpar).Parameters(u21,v21,u22,v22);
2311
2312 Handle(IntSurf_LineOn2S) newL2s = new IntSurf_LineOn2S();
2313 IntSurf_PntOn2S replacePnt = aWLine->Point(tiVpar);
2314 Standard_Integer cNbP = wline->NbPnts();
2315
2316 TColStd_SequenceOfInteger VPold;
2317 Standard_Integer iPo;
2318 for( iPo = 1; iPo <= cnbV; iPo++ )
2319 {
2320 Standard_Real Po = wline->Vertex(iPo).ParameterOnLine();
2321 Standard_Integer IPo = (Standard_Integer) Po;
2322 VPold.Append(IPo);
2323 }
2324
2325 Standard_Boolean removeNext = Standard_False;
2326 Standard_Boolean removePrev = Standard_False;
2327 if( ciV == 1)
2328 {
2329 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2330 if(dPar > 10)
2331 {
2332 removeNext = Standard_True;
2333 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2334 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2335 }
2336 }
2337 else if( ciV == cnbV)
2338 {
2339 Standard_Integer dPar = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2340 if(dPar > 10)
2341 {
2342 removePrev = Standard_True;
2343 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2344 }
2345 }
2346 else
2347 {
2348 Standard_Integer dParMi = Abs( VPold.Value(ciV) - VPold.Value(ciV-1));
2349 Standard_Integer dParMa = Abs( VPold.Value(ciV) - VPold.Value(ciV+1));
2350 if(dParMi > 10)
2351 {
2352 removePrev = Standard_True;
2353 VPold.SetValue(ciV, VPold.Value(ciV) - 1 );
2354 }
2355
2356 if(dParMa > 10)
2357 {
2358 removeNext = Standard_True;
2359 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2360 {
2361 if(dParMi > 10)
2362 VPold.SetValue(iPo, VPold.Value(iPo) - 2 );
2363 else
2364 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2365 }
2366 }
2367 else
2368 {
2369 if(dParMi > 10)
2370 for( iPo = (ciV+1); iPo <= cnbV; iPo++ )
2371 VPold.SetValue(iPo, VPold.Value(iPo) - 1 );
2372 }
2373 }
2374
2375 Standard_Integer pI = ciVpar;
2376
2377 Standard_Integer iP;
2378 for( iP = 1; iP <= cNbP; iP++)
2379 {
2380 if( pI == iP )
b1c5c4e6 2381 {
2382 IntSurf_PntOn2S newPnt = MakeNewPoint(replacePnt, wline->Point(iP), Periods);
2383 newL2s->Add(newPnt);
2384 }
00302ba4 2385 else if(removeNext && iP == (pI + 1))
2386 continue;
2387 else if(removePrev && iP == (pI - 1))
2388 continue;
2389 else
2390 newL2s->Add(wline->Point(iP));
2391 }
2392
2393 IntPatch_Point newVtx;
2394 gp_Pnt Pnt3dV = aWLine->Vertex(VDMin).Value();
2395 newVtx.SetValue(Pnt3dV,TolTang,Standard_False);
2396 newVtx.SetParameters(u21,v21,u22,v22);
2397 newVtx.SetParameter(VPold.Value(ciV));
2398
2399 Handle(IntPatch_WLine) NWLine = new IntPatch_WLine(newL2s,Standard_False,trans1,trans2);
2400
2401 Standard_Integer iV;
2402 for( iV = 1; iV <= cnbV; iV++ )
2403 {
2404 if( iV == ciV )
2405 NWLine->AddVertex(newVtx);
2406 else
2407 {
2408 IntPatch_Point theVtx = wline->Vertex(iV);
2409 theVtx.SetParameter(VPold.Value(iV));
2410 NWLine->AddVertex(theVtx);
2411 }
2412 }
2413
2414 wline = NWLine;
2415 }//if( VDMin != 0 )
2416 }//for( ciV = 1; ciV <= cnbV; ciV++ )
2417 }// SLin.Length > 0
7fd59977 2418
a7dd5d0f 2419 AddWLine(SLin, wline, Deflection);
00302ba4 2420 empt = Standard_False;
2421 }// !RejetLigne
2422 }// PW points > 2
2423 }// done is True
2424 }// dminiPointLigne > SeuildPointLigne
2425 }// HasStartPoint
2426 }// if TabPtDep[nbps2] == 0
2427 } while(nbp>5 && !( (NombreDePointsDeDepartDuCheminement >= NbDePointsDeDepartDuChmLimit && lignetrouvee) ||
2428 (NombreDePointsDeDepartDuCheminement-3 >= nbp && (!lignetrouvee))));
2429 delete [] TabPtDep;
7fd59977 2430 }// for( ls ...
2431
2432 delete [] TabL;
2433
2434 }// if nbLigSec >= 1
2435 //
2436 AdjustOnPeriodic(Surf1, Surf2, SLin);
2437 //
2438
2439 //--------------------------------------------------------------------
2440 //-- Calcul des parametres approches a partir des Zones De Tangence --
2441 //--------------------------------------------------------------------
2442 Standard_Real UminLig1,VminLig1,UmaxLig1,VmaxLig1;
2443 Standard_Real UminLig2,VminLig2,UmaxLig2,VmaxLig2;
00302ba4 2444
7fd59977 2445 UminLig1=VminLig1=UminLig2=VminLig2=RealLast();
2446 UmaxLig1=VmaxLig1=UmaxLig2=VmaxLig2=-UminLig1;
2447
2448 // NbPointsInTangentZone always == 1 (eap)
00302ba4 2449
7fd59977 2450 Standard_Integer z;
00302ba4 2451 for( z=1; z <= nbTanZon; z++)
2452 {
7fd59977 2453 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2454 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
00302ba4 2455 Standard_Integer pz=1;
2456 Standard_Real _x,_y,_z;
2457 Standard_Real U1, U2, V1, V2;
2458 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2459
2460 if(U1>UmaxLig1) UmaxLig1=U1;
2461 if(V1>VmaxLig1) VmaxLig1=V1;
2462 if(U2>UmaxLig2) UmaxLig2=U2;
2463 if(V2>VmaxLig2) VmaxLig2=V2;
2464
2465 if(U1<UminLig1) UminLig1=U1;
2466 if(V1<VminLig1) VminLig1=V1;
2467 if(U2<UminLig2) UminLig2=U2;
2468 if(V2<VminLig2) VminLig2=V2;
7fd59977 2469 //}
2470 }
7fd59977 2471
00302ba4 2472 for(z=1; z <= nbTanZon; z++)
2473 {
7fd59977 2474 //Standard_Integer NbPointsInTangentZone=Interference.NbPointsInTangentZone(z);
2475 //for(Standard_Integer pz=1; pz<=NbPointsInTangentZone; pz++) {
00302ba4 2476 Standard_Integer pz=1;
2477 Standard_Real _x,_y,_z;
2478 Standard_Real U1, U2, V1, V2;
2479 Interference.GetTangentZonePoint(z,pz,_x,_y,_z,U1,V1,U2,V2);
2480
2481 StartParams(1) = U1;
2482 StartParams(2) = V1;
2483 StartParams(3) = U2;
2484 StartParams(4) = V2;
2485
2486 //-----------------------------------------------------------------------
2487 //-- Calcul du premier point de cheminement a partir du point approche --
2488 //-----------------------------------------------------------------------
2489 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
2490 if(HasStartPoint)
2491 {
2492 //-------------------------------------------------
2493 //-- Un point a ete trouve --
2494 //-- On verifie qu il n appartient pas --
2495 //-- a une ligne de cheminement deja calculee. --
2496 //-------------------------------------------------
2497 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
2498
2499 NbLigCalculee = SLin.Length();
2500 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
2501
2502 for(Standard_Integer l=1;
2503 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2504 l++)
2505 {
2506 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2507
2508 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2509 {
2510 dminiPointLigne = 0.0;
2511 }
2512 }
2513
2514 //-- Fin d exploration des lignes
2515 if(dminiPointLigne > SeuildPointLigne)
2516 {
2517 //---------------------------------------------------
2518 //-- Le point de depart du nouveau cheminement --
2519 //-- n est present dans aucune ligne deja calculee.--
2520 //---------------------------------------------------
2521 PW.Perform(StartParams,UminLig1,VminLig1,UminLig2,VminLig2,
2522 UmaxLig1,VmaxLig1,UmaxLig2,VmaxLig2);
2523
2524 if(PW.IsDone())
2525 {
2526 if(PW.NbPoints()>2)
2527 {
2528 const Standard_Integer aMinNbPoints = 40;
2529 if(PW.NbPoints() < aMinNbPoints)
2530 {
2531 PW.SeekAdditionalPoints(Surf1, Surf2, aMinNbPoints);
2532 }
2533
2534 //-----------------------------------------------
2535 //-- Verification a posteriori :
2536 //-- On teste si le point de depart et de fin de
2537 //-- la ligne de cheminement est present dans une
2538 //-- autre ligne .
2539 //-----------------------------------------------
2540 RejectLine = Standard_False;
2541 Point3dDebut = PW.Value(1).Value();
2542 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2543 Point3dFin = PointFin.Value();
2544
2545 for(ver=1 ; (!RejectLine) && (ver<= NbLigCalculee) ; ver++)
2546 {
2547 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2548 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
2549
2550 // Check end point if it is on existing line.
2551 // Start point is checked before.
2552 if (IsPointOnLine(PointFin, verwline, Deflection))
2553 {
2554 RejectLine = Standard_True;
2555 break;
2556 }
2557
2558 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2559 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2560 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
2561 {
2562 RejectLine = Standard_True;
2563 }
2564 else
2565 {
2566 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
2567 {
2568 RejectLine = Standard_True;
a7dd5d0f 2569 }
00302ba4 2570 }
2571 }
a7dd5d0f 2572
00302ba4 2573 if(!RejectLine)
2574 {
2575 IntSurf_TypeTrans trans1,trans2;
2576 Standard_Real locu,locv;
2577 gp_Vec norm1,norm2,d1u,d1v;
2578 gp_Pnt ptbid;
2579 Standard_Integer indextg;
2580 gp_Vec tgline(PW.TangentAtLine(indextg));
2581 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2582 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2583 norm1 = d1u.Crossed(d1v);
2584 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2585 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2586 norm2 = d1u.Crossed(d1v);
2587 if (tgline.DotCross(norm2,norm1)>0.)
2588 {
2589 trans1 = IntSurf_Out;
2590 trans2 = IntSurf_In;
2591 }
2592 else
2593 {
2594 trans1 = IntSurf_In;
2595 trans2 = IntSurf_Out;
2596 }
2597
2598 Standard_Real TolTang = TolTangency;
2599 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2600 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2601 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2602
2603 //---------------
2604 if(wline->NbVertex() == 0)
2605 {
2606 IntPatch_Point vtx;
2607 IntSurf_PntOn2S POn2S = PW.Line()->Value(1);
2608 POn2S.Parameters(pu1,pv1,pu2,pv2);
2609 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2610 vtx.SetParameters(pu1,pv1,pu2,pv2);
2611 vtx.SetParameter(1);
2612 wline->AddVertex(vtx);
2613
2614 POn2S = PW.Line()->Value(wline->NbPnts());
2615 POn2S.Parameters(pu1,pv1,pu2,pv2);
2616 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2617 vtx.SetParameters(pu1,pv1,pu2,pv2);
2618 vtx.SetParameter(wline->NbPnts());
2619 wline->AddVertex(vtx);
2620 }
2621
2622 //---------------
2623 AddWLine(SLin, wline, Deflection);
2624 empt = Standard_False;
2625 }
2626 else
2627 {
2628 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2629 }
2630 //------------------------------------------------------------
2631 }
2632 } //-- le cheminement a reussi (done a True)
2633 } //-- le point approche ne renvoie pas sur une ligne existante
2634 } //-- Si HasStartPoint
c66d7156
P		 2635 //} //-- Boucle Sur les Points de la Tangent Zone
2636 } //-- Boucle sur Les Tangent Zones
7fd59977 2637
00302ba4 2638 if ( pInterference )
2639 {
c66d7156
P		 2640 delete pInterference;
2641 pInterference = NULL;
2642 }
00302ba4 2643
c66d7156
P		 2644 return;
2645 }// if((NbU1*NbV1<=Limit && NbV2*NbU2<=Limit)) {
2646
2647 Handle(IntSurf_LineOn2S) LOn2S = new IntSurf_LineOn2S();
2648 PointDepart( LOn2S, Surf1, NbU1, NbV1, Surf2, NbU2, NbV2 );
7fd59977 2649 empt = Standard_True;
2650 done = Standard_True;
2651 SLin.Clear();
00302ba4 2652
c66d7156
P		 2653 Standard_Integer NbLigCalculee = 0;
2654 Standard_Real U1,U2,V1,V2;
7fd59977 2655 Standard_Real pu1,pu2,pv1,pv2;
00302ba4 2656
7fd59977 2657 TColStd_Array1OfReal StartParams(1,4);
c66d7156
P		 2658 Standard_Integer MaxOscill = NbU1;
2659 if(MaxOscill < NbU2) MaxOscill=NbU2;
2660 if(MaxOscill < NbV1) MaxOscill=NbV1;
2661 if(MaxOscill < NbV2) MaxOscill=NbV2;
00302ba4 2662
c66d7156
P		 2663 Standard_Real nIncrement=Increment;
2664 //if(MaxOscill>10)
00302ba4 2665 //nIncrement/=0.5*MaxOscill;
c66d7156
P		 2666
2667 IntPatch_ThePWalkingInter PW(Surf1,Surf2,TolTangency,Epsilon,Deflection,nIncrement);
2668 Standard_Real SeuildPointLigne = 15.0 * Increment * Increment; //-- 10 est insuffisant
2669 Standard_Real dminiPointLigne;
2670 Standard_Boolean HasStartPoint,RejetLigne;
7fd59977 2671 IntSurf_PntOn2S StartPOn2S;
c66d7156 2672 Standard_Integer ver;
7fd59977 2673 gp_Pnt Point3dDebut,Point3dFin;
c66d7156 2674
7fd59977 2675 //------------------------------------------------------------
c66d7156
P		 2676 //-- Calcul des parametres approches a partir des Zones De Tangence --
2677 //--------------------------------------------------------------------
2678 Standard_Integer nbTanZon = LOn2S->NbPoints();
2679 for(Standard_Integer z=1; z <= nbTanZon; z++) {
2680 const IntSurf_PntOn2S& POn2S = LOn2S->Value(z);
2681 POn2S.Parameters(U1,V1,U2,V2);
2682 StartParams(1) = U1;
2683 StartParams(2) = V1;
2684 StartParams(3) = U2;
2685 StartParams(4) = V2;
00302ba4 2686
c66d7156
P		 2687 //-----------------------------------------------------------------------
2688 //-- Calcul du premier point de cheminement a partir du point approche --
2689 //-----------------------------------------------------------------------
2690 HasStartPoint = PW.PerformFirstPoint(StartParams,StartPOn2S);
00302ba4 2691 if(HasStartPoint)
2692 {
c66d7156
P		 2693 //-------------------------------------------------
2694 //-- Un point a ete trouve --
2695 //-- On verifie qu il n appartient pas --
2696 //-- a une ligne de cheminement deja calculee. --
2697 //-------------------------------------------------
2698 StartPOn2S.Parameters(pu1,pv1,pu2,pv2);
00302ba4 2699
c66d7156
P		 2700 NbLigCalculee = SLin.Length();
2701 dminiPointLigne = SeuildPointLigne + SeuildPointLigne;
00302ba4 2702
c66d7156 2703 for(Standard_Integer l=1;
00302ba4 2704 (l <= NbLigCalculee) && (dminiPointLigne >= SeuildPointLigne);
2705 l++)
2706 {
a7dd5d0f 2707 const Handle(IntPatch_WLine)& testwline = *((Handle(IntPatch_WLine)*)&SLin.Value(l));
2708
00302ba4 2709 if (IsPointOnLine(StartPOn2S, testwline, Deflection))
2710 {
a7dd5d0f 2711 dminiPointLigne = 0.0;
2712 }
7fd59977 2713 }
a7dd5d0f 2714
c66d7156 2715 //-- Fin d exploration des lignes
00302ba4 2716 if(dminiPointLigne > SeuildPointLigne)
2717 {
2718 //---------------------------------------------------
2719 //-- Le point de depart du nouveau cheminement --
2720 //-- n est present dans aucune ligne deja calculee.--
2721 //---------------------------------------------------
2722 PW.Perform(StartParams);
2723 if(PW.IsDone())
2724 {
2725 if(PW.NbPoints()>2)
2726 {
2727 //-----------------------------------------------
2728 //-- Verification a posteriori :
2729 //-- On teste si le point de depart et de fin de
2730 //-- la ligne de cheminement est present dans une
2731 //-- autre ligne .
2732 //-----------------------------------------------
2733 RejetLigne = Standard_False;
2734 Point3dDebut = PW.Value(1).Value();
a7dd5d0f 2735 const IntSurf_PntOn2S& PointFin = PW.Value(PW.NbPoints());
2736 Point3dFin = PointFin.Value();
00302ba4 2737
2738 for(ver=1 ; (!RejetLigne) && (ver<= NbLigCalculee) ; ver++)
2739 {
2740 const Handle(IntPatch_WLine)& verwline = *((Handle(IntPatch_WLine)*)&SLin.Value(ver));
2741 //-- Handle(IntPatch_WLine) verwline=Handle(IntPatch_WLine)::DownCast(SLin.Value(ver));
a7dd5d0f 2742
2743 // Check end point if it is on existing line.
2744 // Start point is checked before.
00302ba4 2745 if (IsPointOnLine(PointFin, verwline, Deflection))
2746 {
a7dd5d0f 2747 RejetLigne = Standard_True;
2748 break;
2749 }
2750
00302ba4 2751 const IntSurf_PntOn2S& verPointDebut = verwline->Point(1);
2752 const IntSurf_PntOn2S& verPointFin = verwline->Point(verwline->NbPnts());
2753 if(Point3dDebut.Distance(verPointDebut.Value()) < TolTangency)
2754 {
2755 RejetLigne = Standard_True;
2756 }
2757 else
2758 {
2759 if(Point3dFin.Distance(verPointFin.Value()) < TolTangency)
2760 {
2761 RejetLigne = Standard_True;
2762 }
2763 }
2764 }
2765
2766 if(!RejetLigne)
2767 {
2768 IntSurf_TypeTrans trans1,trans2;
2769 Standard_Real locu,locv;
2770 gp_Vec norm1,norm2,d1u,d1v;
2771 gp_Pnt ptbid;
2772 Standard_Integer indextg;
2773 gp_Vec tgline(PW.TangentAtLine(indextg));
2774 PW.Line()->Value(indextg).ParametersOnS1(locu,locv);
2775 Surf1->D1(locu,locv,ptbid,d1u,d1v);
2776 norm1 = d1u.Crossed(d1v);
2777 PW.Line()->Value(indextg).ParametersOnS2(locu,locv);
2778 Surf2->D1(locu,locv,ptbid,d1u,d1v);
2779 norm2 = d1u.Crossed(d1v);
2780 if (tgline.DotCross(norm2,norm1)>0.)
2781 {
2782 trans1 = IntSurf_Out;
2783 trans2 = IntSurf_In;
2784 }
2785 else {
2786 trans1 = IntSurf_In;
2787 trans2 = IntSurf_Out;
2788 }
2789
2790 Standard_Real TolTang = TolTangency;
2791 Handle(IntPatch_WLine) wline = new IntPatch_WLine(PW.Line(),Standard_False,trans1,trans2);
2792 IntPatch_RstInt::PutVertexOnLine(wline,Surf1,D1,Surf2,Standard_True,TolTang);
2793 IntPatch_RstInt::PutVertexOnLine(wline,Surf2,D2,Surf1,Standard_False,TolTang);
2794
2795 //---------------
2796 if(wline->NbVertex() == 0)
2797 {
2798 IntPatch_Point vtx;
2799 const IntSurf_PntOn2S& POn2Sf = PW.Line()->Value(1);
2800 POn2Sf.Parameters(pu1,pv1,pu2,pv2);
2801 vtx.SetValue(Point3dDebut,TolTang,Standard_False);
2802 vtx.SetParameters(pu1,pv1,pu2,pv2);
2803 vtx.SetParameter(1);
2804 wline->AddVertex(vtx);
2805
2806 const IntSurf_PntOn2S& POn2Sl = PW.Line()->Value(wline->NbPnts());
2807 POn2Sl.Parameters(pu1,pv1,pu2,pv2);
2808 vtx.SetValue(Point3dFin,TolTang,Standard_False);
2809 vtx.SetParameters(pu1,pv1,pu2,pv2);
2810 vtx.SetParameter(wline->NbPnts());
2811 wline->AddVertex(vtx);
2812 }
2813
2814 //---------------
a7dd5d0f 2815 AddWLine(SLin, wline, Deflection);
00302ba4 2816 empt = Standard_False;
2817 }
2818 else
2819 {
2820 //-- cout<<" ----- REJET DE LIGNE (POINT DE DEPART) ----- "<<endl;
2821 }
2822 //------------------------------------------------------------
2823 }
2824 } //-- le cheminement a reussi (done a True)
c66d7156
P		 2825 } //-- le point approche ne renvoie pas sur une ligne existante
2826 } //-- Si HasStartPoint
2827 } //-- Boucle sur Les Tangent Zones
7fd59977 2828}
c66d7156
P		 2829//modified by NIZNHY-PKV Wed May 25 09:39:07 2011f
2830//=======================================================================
2831//class : IntPatch_InfoPD
2832//purpose :
2833//=======================================================================
2834class IntPatch_InfoPD {
00302ba4 2835public:
c66d7156
P		 2836 //----------------------------------------C-tor
2837 IntPatch_InfoPD(const Standard_Integer aNBI) {
2838 Standard_Integer aNBI2, i, j;
2839 myNBI=aNBI;
2840 //
2841 aNBI2=aNBI*aNBI;
2842 myP1DS2=new char[aNBI2];
2843 myP2DS1=new char[aNBI2];
2844 myIP1=new Standard_Integer[aNBI2];
2845 myIP2=new Standard_Integer[aNBI2];
2846 myP1=new gp_Pnt[aNBI2];
2847 myP2=new gp_Pnt[aNBI2];
2848 //
2849 for (i=0; i<myNBI; ++i) {
2850 for (j=0; j<myNBI; ++j) {
00302ba4 2851 xP1DS2(i, j)=0;
2852 xP2DS1(i, j)=0;
2853 xIP1(i, j)=0;
2854 xIP2(i, j)=0;
2855 xP1(i, j).SetCoord(0., 0., 0.);
2856 xP2(i, j).SetCoord(0., 0., 0.);
c66d7156
P		 2857 }
2858 }
2859 };
2860 //---------------------------------------- D-tor
2861 ~IntPatch_InfoPD() {
2862 delete [] (char*) myP1DS2;
2863 delete [] (char*) myP2DS1;
2864 delete [] (Standard_Integer*) myIP1;
2865 delete [] (Standard_Integer*) myIP2;
2866 delete [] (gp_Pnt*)myP1;
2867 delete [] (gp_Pnt*)myP2;
2868 };
2869 //---------------------------------------- Index
2870 Standard_Integer Index(const Standard_Integer i,
00302ba4 2871 const Standard_Integer j) const {
2872 return i*myNBI+j;
c66d7156
P		 2873 };
2874 //---------------------------------------- NBI
2875 Standard_Integer NBI() const {
2876 return myNBI;
2877 };
2878 //----------------------------------------xP1DS2
2879 char& xP1DS2(const Standard_Integer i,
00302ba4 2880 const Standard_Integer j) {
2881 return myP1DS2[Index(i,j)];
c66d7156
P		 2882 };
2883 //----------------------------------------xP2DS1
2884 char& xP2DS1(const Standard_Integer i,
00302ba4 2885 const Standard_Integer j) {
2886 return myP2DS1[Index(i,j)];
c66d7156
P		 2887 };
2888 //----------------------------------------xIP1
2889 Standard_Integer& xIP1(const Standard_Integer i,
00302ba4 2890 const Standard_Integer j) {
2891 return myIP1[Index(i,j)];
c66d7156
P		 2892 };
2893 //----------------------------------------xIP2
2894 Standard_Integer& xIP2(const Standard_Integer i,
00302ba4 2895 const Standard_Integer j) {
2896 return myIP2[Index(i,j)];
c66d7156
P		 2897 };
2898 //----------------------------------------xP1
2899 gp_Pnt& xP1(const Standard_Integer i,
00302ba4 2900 const Standard_Integer j) {
2901 return myP1[Index(i,j)];
c66d7156
P		 2902 };
2903 //----------------------------------------xP1
2904 gp_Pnt& xP2(const Standard_Integer i,
00302ba4 2905 const Standard_Integer j) {
2906 return myP2[Index(i,j)];
c66d7156 2907 };
00302ba4 2908protected:
c66d7156
P		 2909 Standard_Integer myNBI;
2910 char *myP1DS2;
2911 char *myP2DS1;
2912 Standard_Integer *myIP1;
2913 Standard_Integer *myIP2;
2914 gp_Pnt *myP1;
2915 gp_Pnt *myP2;
2916};
2917//modified by NIZNHY-PKV Tue May 24 11:38:55 2011t
7fd59977 2918//==================================================================================
c66d7156 2919// function : PointDepart
7fd59977 2920// purpose :
2921//==================================================================================
c66d7156 2922void IntPatch_PrmPrmIntersection::PointDepart(Handle(IntSurf_LineOn2S)& LineOn2S,
00302ba4 2923 const Handle(Adaptor3d_HSurface)& S1,
2924 const Standard_Integer SU_1,
2925 const Standard_Integer SV_1,
2926 const Handle(Adaptor3d_HSurface)& S2,
2927 const Standard_Integer SU_2,
2928 const Standard_Integer SV_2) const
c66d7156
P		 2929{
2930 Standard_Integer i, j, xNBI;
2931 //modified by NIZNHY-PKV Tue May 24 11:37:38 2011f
2932 xNBI=200;
2933 IntPatch_InfoPD aIPD(xNBI);
2934 //modified by NIZNHY-PKV Wed May 25 06:47:12 2011t
2935 Standard_Integer iC15, SU1, SV1, SU2, SV2;
2936 Standard_Real U0, U1, V0, V1, U, V;
96a95605 2937 Standard_Real resu0,resv0;
c66d7156
P		 2938 Standard_Real du1,du2,dv1,dv2, dmaxOn1, dmaxOn2;
2939 Standard_Real x0,y0,z0, x1,y1,z1,d;
2940 Bnd_Box Box1, Box2;
7fd59977 2941 //
c66d7156
P		 2942 iC15=15;
2943 SU1 =iC15*SU_1 ;
2944 SV1 =iC15*SV_1 ;
2945 SU2 =iC15*SU_2 ;
2946 SV2 =iC15*SV_2 ;
7fd59977 2947 //
c66d7156
P		 2948 if(xNBI<SU1) {
2949 SU1 = xNBI;
2950 }
2951 if(xNBI<SV1){
2952 SV1 = xNBI;
2953 }
2954 if(xNBI<SU2){
2955 SU2 = xNBI;
2956 }
2957 if(xNBI<SV2){
2958 SV2 = xNBI;
2959 }
2960 //
2961 U0 = S1->FirstUParameter();
2962 U1 = S1->LastUParameter();
2963 V0 = S1->FirstVParameter();
2964 V1 = S1->LastVParameter();
2965 //
2966 resu0=U0;
c66d7156
P		 2967 resv0=V0;
2968 //
2969 dmaxOn1 = 0.0;
2970 dmaxOn2 = 0.0;
2971 //-----
2972 du1 = (U1-U0)/(SU1-1);
2973 dv1 = (V1-V0)/(SV1-1);
2974 for(U=U0,i=0; i<SU1; i++,U+=du1) {
2975 for(V=V0,j=0; j<SV1; V+=dv1,j++) {
2976 aIPD.xP1(i, j)= S1->Value(U,V);
2977 Box1.Add(aIPD.xP1(i, j));
2978 if(i>0 && j>0) {
00302ba4 2979 aIPD.xP1(i, j) .Coord(x0,y0,z0);
2980 aIPD.xP1(i-1, j-1).Coord(x1,y1,z1);
2981 //
2982 d=Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
2983 if(d>dmaxOn1) {
2984 dmaxOn1 = d;
2985 }
c66d7156
P		 2986 }
2987 }
2988 }
2989 Box1.Enlarge(1.e-8);
2990 //
2991 U0 = S2->FirstUParameter();
2992 U1 = S2->LastUParameter();
2993 V0 = S2->FirstVParameter();
2994 V1 = S2->LastVParameter();
2995 //
2996 du2 = (U1-U0)/(SU2-1);
2997 dv2 = (V1-V0)/(SV2-1);
2998 for(U=U0,i=0; i<SU2; i++,U+=du2) {
2999 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
3000 aIPD.xP2(i, j) = S2->Value(U,V);
3001 Box2.Add(aIPD.xP2(i, j));
3002 if(i>0 && j>0) {
00302ba4 3003 aIPD.xP2(i, j) .Coord(x0,y0,z0);
3004 aIPD.xP2(i-1, j-1).Coord(x1,y1,z1);
3005 d = Abs(x1-x0)+Abs(y1-y0)+Abs(z1-z0);
3006 if(d>dmaxOn2) {
3007 dmaxOn2 = d;
3008 }
c66d7156
P		 3009 }
3010 }
3011 }
3012 Box2.Enlarge(1.e-8);
3013 //--------
3014 //
3015 if(Box1.IsOut(Box2)) {
00302ba4 3016
c66d7156
P		 3017 return;
3018 }
3019 //
3020 Standard_Integer aNbPG;
3021 Standard_Real x10,y10,z10,x11,y11,z11;
3022 Standard_Real x20,y20,z20,x21,y21,z21;
3023 Standard_Real dx, dy, dz, dmax;
3024 Standard_Real dx2, dy2, dz2;
3025 //
3026 Box1.Get(x10,y10,z10,x11,y11,z11);
3027 Box2.Get(x20,y20,z20,x21,y21,z21);
3028 //
3029 x0 = (x10>x20)? x10 : x20;
3030 y0 = (y10>y20)? y10 : y20;
3031 z0 = (z10>z20)? z10 : z20;
3032 //
3033 x1 = (x11<x21)? x11 : x21;
3034 y1 = (y11<y21)? y11 : y21;
3035 z1 = (z11<z21)? z11 : z21;
3036 //
3037 if(dmaxOn2 > dmaxOn1) {
3038 dmaxOn1 = dmaxOn2;
7fd59977 3039 }
3040 //
c66d7156
P		 3041 dmaxOn1+=dmaxOn1;
3042 x0-=dmaxOn1;
3043 y0-=dmaxOn1;
3044 z0-=dmaxOn1;
3045 x1+=dmaxOn1;
3046 y1+=dmaxOn1;
3047 z1+=dmaxOn1;
3048 //
3049 x10-=dmaxOn1; y10-=dmaxOn1; z10-=dmaxOn1;
3050 x11+=dmaxOn1; y11+=dmaxOn1; z11+=dmaxOn1;
3051
3052 x20-=dmaxOn1; y20-=dmaxOn1; z20-=dmaxOn1;
3053 x21+=dmaxOn1; y21+=dmaxOn1; z21+=dmaxOn1;
3054
3055 aNbPG=NbPointsGrille();
3056 dx = (x1-x0)/aNbPG;
3057 dy = (y1-y0)/aNbPG;
3058 dz = (z1-z0)/aNbPG;
7fd59977 3059 //
c66d7156
P		 3060 dmax = dx;
3061 if(dy>dmax) {
3062 dmax = dy;
7fd59977 3063 }
c66d7156
P		 3064 if(dz>dmax){
3065 dmax = dz;
7fd59977 3066 }
c66d7156
P		 3067 //
3068 if(dx<dmax*0.01) {
3069 dx = dmax*0.01;
7fd59977 3070 }
c66d7156
P		 3071 if(dy<dmax*0.01) {
3072 dy = dmax*0.01;
3073 }
3074 if(dz<dmax*0.01) {
3075 dz = dmax*0.01;
7fd59977 3076 }
3077 //
c66d7156
P		 3078 dx2 = dx*0.5;
3079 dy2 = dy*0.5;
3080 dz2 = dz*0.5 ;
3081 //
3082 IntPatch_PrmPrmIntersection_T3Bits M1(_BASE);
3083 IntPatch_PrmPrmIntersection_T3Bits M2(_BASE);
3084 //
3085 for(i=0;i<SU1;i++) {
3086 for(j=0;j<SV1;j++) {
3087 aIPD.xIP1(i, j)=-1;
3088 const gp_Pnt& P=aIPD.xP1(i, j);
8263fcd3 3089 aIPD.xP1DS2(i, j) = (char)CodeReject(x20,y20,z20,x21,y21,z21,P.X(),P.Y(),P.Z());
c66d7156
P		 3090 int ix = (int)((P.X()-x0 + dx2 )/dx);
3091 if(DansGrille(ix)) {
00302ba4 3092 int iy = (int)((P.Y()-y0 + dy2)/dy);
3093 if(DansGrille(iy)) {
3094 int iz = (int)((P.Z()-z0 + dz2)/dz);
3095 if(DansGrille(iz)) {
3096 aIPD.xIP1(i, j) = GrilleInteger(ix,iy,iz);
3097 }
3098 }
c66d7156
P		 3099 }
3100 }
3101 }
3102 //-- cout<<" Grille du 1 fini "<<endl;
3103 for(i=0;i<SU2;i++) {
3104 for(j=0;j<SV2;j++) {
3105 aIPD.xIP2(i, j)=-1;
3106 const gp_Pnt& P=aIPD.xP2(i, j);
8263fcd3 3107 aIPD.xP2DS1(i, j) = (char)CodeReject(x10,y10,z10,x11,y11,z11,P.X(),P.Y(),P.Z());
c66d7156
P		 3108 int ix = (int)((P.X()-x0 + dx2)/dx);
3109 if(DansGrille(ix)) {
00302ba4 3110 int iy = (int)((P.Y()-y0 + dy2)/dy);
3111 if(DansGrille(iy)) {
3112 int iz = (int)((P.Z()-z0 + dz2)/dz);
3113 if(DansGrille(iz)) {
3114 aIPD.xIP2(i, j) = GrilleInteger(ix,iy,iz);
3115 }
3116 }
c66d7156
P		 3117 }
3118 }
7fd59977 3119 }
3120 //
c66d7156
P		 3121 for(i=0;i<SU1-1;i+=1) {
3122 for(j=0;j<SV1-1;j+=1) {
3123 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j)) ||
00302ba4 3124 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))){
3125 Remplit(aIPD.xIP1(i, j),
3126 aIPD.xIP1(i+1, j),
3127 aIPD.xIP1(i+1, j+1),
3128 M1);
c66d7156
P		 3129 }
3130 if(!((aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i, j+1)) ||
00302ba4 3131 (aIPD.xP1DS2(i, j) & aIPD.xP1DS2(i+1, j+1)))) {
3132 Remplit(aIPD.xIP1(i, j),
3133 aIPD.xIP1(i, j+1),
3134 aIPD.xIP1(i+1, j+1),
3135 M1);
c66d7156 3136 }
7fd59977 3137 }
c66d7156
P		 3138 }
3139 //
3140 for(i=0;i<SU2-1;i+=1) {
3141 for(j=0;j<SV2-1;j+=1) {
3142 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j)) ||
00302ba4 3143 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3144 Remplit(aIPD.xIP2(i, j),
3145 aIPD.xIP2(i+1, j),
3146 aIPD.xIP2(i+1, j+1),
3147 M2);
c66d7156
P		 3148 }
3149 if(!((aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i, j+1)) ||
00302ba4 3150 (aIPD.xP2DS1(i, j) & aIPD.xP2DS1(i+1, j+1)))){
3151 Remplit(aIPD.xIP2(i, j),
3152 aIPD.xIP2(i, j+1),
3153 aIPD.xIP2(i+1, j+1),
3154 M2);
c66d7156
P		 3155 }
3156 }
3157 }
3158 //
3159 M1.ResetAnd();
3160 M2.ResetAnd();
3161 //
3162 int newind=0;
3163 long unsigned Compt=0;
3164 int ok=0;
3165 int indicepointtraite = 0;
3166 Standard_Integer k,nu,nv;
3167 //
3168 do {
3169 indicepointtraite--;
3170 ok = M1.And(M2,newind);
3171 if(ok) {
3172 IntegerGrille(newind,i,j,k);
3173 int nb=0;
3174 int LIM=3;
3175 if( DansGrille(i-1) && DansGrille(j-1) && DansGrille(k-1)
00302ba4 3176 && DansGrille(i+1) && DansGrille(j+1) && DansGrille(k+1)) {
3177 int si,sj,sk;
3178 for(si=-1; si<= 1 && nb<LIM; si++) {
3179 for(sj=-1; sj<= 1 && nb<LIM; sj++) {
3180 for(sk=-1; sk<= 1 && nb<LIM; sk++) {
3181 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3182 if(M1.Val(lu) && M2.Val(lu)) {
3183 nb++;
3184 }
3185 }
3186 }
3187 }
3188 if(nb>=LIM) {
3189 for(si=-1; si<= 1; si++) {
3190 for(sj=-1; sj<= 1; sj++) {
3191 for(sk=-1; sk<= 1; sk++) {
3192 if(si || sj || sk) {
3193 long unsigned lu=GrilleInteger(i+si,j+sj,k+sk);
3194 M1.Raz(lu);
3195 }
3196 }
3197 }
3198 }
3199 }
7fd59977 3200 }
3201 //
c66d7156 3202 gp_Pnt P(dx*i + x0, dy*j + y0, dz*k+z0);
7fd59977 3203 //
c66d7156
P		 3204 Standard_Integer nu1=-1,nu2=-1;
3205 Standard_Integer nv1=0, nv2=0;
3206 int nbsur1 = 0;
3207 for(nu=0;nu1<0 && nu<SU1;nu++) {
00302ba4 3208 for(nv=0;nu1<0 && nv<SV1;nv++) {
3209 if( aIPD.xIP1(nu, nv) ==(Standard_Integer) newind ) {
3210 nbsur1++;
3211 aIPD.xIP1(nu, nv)=indicepointtraite;
3212 nu1=nu; nv1=nv;
3213 }
3214 }
c66d7156
P		 3215 }
3216 if(nu1>=0) {
00302ba4 3217 int nbsur2 = 0;
3218 for(nu=0;nu2<0 && nu<SU2;nu++) {
3219 for(nv=0;nu2<0 && nv<SV2;nv++) {
3220 if( aIPD.xIP2(nu, nv)==(Standard_Integer) newind ) {
3221 nbsur2++;
3222 aIPD.xIP2(nu, nv)=indicepointtraite;
3223 nu2=nu; nv2=nv;
3224 }
3225 }
3226 }
c66d7156
P		 3227 }
3228 if(nu1>=0 && nu2>=0) {
00302ba4 3229 IntSurf_PntOn2S POn2S;
3230 POn2S.SetValue(P,
3231 S1->FirstUParameter()+nu1*du1,
3232 S1->FirstVParameter()+nv1*dv1,
3233 S2->FirstUParameter()+nu2*du2,
3234 S2->FirstVParameter()+nv2*dv2);
3235 LineOn2S->Add(POn2S);
3236 Compt++;
c66d7156
P		 3237 }
3238 else {
00302ba4 3239 //-- aucun point du triangle n a ete trouve assez proche
3240 //-- on recherche les 3 points les plus proches de P
3241 //-- dans chacun des tableaux
3242 Standard_Real Dist3[3],u3[3] = { 0.0, 0.0, 0.0 },v3[3] = { 0.0, 0.0, 0.0 };
3243 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3244 for(U=resu0,i=0; i<SU1; i++,U+=du1) {
3245 for(V=resv0,j=0; j<SV1; V+=dv1,j++) {
3246 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3247 Standard_Real t = aIPD.xP1(i, j).SquareDistance(P);
3248 //-- On remplace la plus grande valeur ds Dist[.] par la val courante
3249 if(Dist3[0]<Dist3[1]) {
3250 Standard_Real z;
3251 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3252 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3253 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3254 }
3255 if(Dist3[1]<Dist3[2]) {
3256 Standard_Real z;
3257 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3258 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3259 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3260 }
3261 if(Dist3[0]<Dist3[1]) {
3262 Standard_Real z;
3263 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3264 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3265 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3266 }
3267 //-- la plus grande valeur est dans Dist3[0]
3268 if(t<Dist3[0]) {
3269 Dist3[0]=t; u3[0]=U; v3[0]=V;
3270 }
3271 }
3272 }
3273 //
3274 Standard_Real U1_3 = (u3[0]+u3[1]+u3[2])/3.0;
3275 Standard_Real V1_3 = (v3[0]+v3[1]+v3[2])/3.0;
3276
3277 Dist3[0]=Dist3[1]=Dist3[2]=RealLast();
3278 for(U=U0,i=0; i<SU2; i++,U+=du2) {
3279 for(V=V0,j=0; j<SV2; V+=dv2,j++) {
3280 //-- On place les 3 meilleures valeurs dans Dist1,Dist2,Dist3
3281 Standard_Real t = aIPD.xP2(i, j).SquareDistance(P);
3282 //-- On remplace la plus grande valeur ds Dist3[.] par la val courante
3283 if(Dist3[0]<Dist3[1]) {
3284 Standard_Real z;
3285 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3286 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3287 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3288 }
3289 if(Dist3[1]<Dist3[2]) {
3290 Standard_Real z;
3291 z=Dist3[1]; Dist3[1]=Dist3[2]; Dist3[2]=z;
3292 z=u3[1]; u3[1]=u3[2]; u3[2]=z;
3293 z=v3[1]; v3[1]=v3[2]; v3[2]=z;
3294 }
3295 if(Dist3[0]<Dist3[1]) {
3296 Standard_Real z;
3297 z=Dist3[0]; Dist3[0]=Dist3[1]; Dist3[1]=z;
3298 z=u3[0]; u3[0]=u3[1]; u3[1]=z;
3299 z=v3[0]; v3[0]=v3[1]; v3[1]=z;
3300 }
3301 //-- la plus grande valeur est dans Dist3[0]
3302 if(t<Dist3[0]) {
3303 Dist3[0]=t; u3[0]=U; v3[0]=V;
3304 }
3305 }
3306 }
3307 //
3308 Standard_Real U2_3 = (u3[0]+u3[1]+u3[2])/3.0;
3309 Standard_Real V2_3 = (v3[0]+v3[1]+v3[2])/3.0;
3310 //
3311 IntSurf_PntOn2S POn2S;
3312 POn2S.SetValue(P,U1_3,V1_3,U2_3,V2_3);
3313 LineOn2S->Add(POn2S);
3314 Compt++;
7fd59977 3315 }
c66d7156
P		 3316 }
3317 }
3318 while(ok);
7fd59977 3319}
a7dd5d0f 3320
3321//==================================================================================
3322// function : IsPointOnLine
3323// purpose :
3324//==================================================================================
3325
3326Standard_Boolean IsPointOnLine(const IntSurf_PntOn2S &thePOn2S,
3327 const Handle(IntPatch_WLine) &theWLine,
3328 const Standard_Real Deflection)
3329{
3330 Standard_Boolean isOnLine = Standard_False;
3331 Standard_Real Deflection2 = Deflection*Deflection;
3332 Standard_Real pu1, pu2, pv1, pv2;
3333
3334 thePOn2S.Parameters(pu1, pv1, pu2, pv2);
3335
3336 if ((theWLine->IsOutSurf1Box(gp_Pnt2d(pu1, pv1)) == Standard_False) &&
00302ba4 3337 (theWLine->IsOutSurf2Box(gp_Pnt2d(pu2, pv2)) == Standard_False) &&
3338 (theWLine->IsOutBox(thePOn2S.Value()) == Standard_False)) {
3339 const Standard_Integer NbPntOn2SOnLine = theWLine->NbPnts();
3340 Standard_Integer ll;
3341
3342 for (ll=1; ll < NbPntOn2SOnLine && !isOnLine; ll++) {
3343 const gp_Pnt &Pa = theWLine->Point(ll).Value();
3344 const gp_Pnt &Pb = theWLine->Point(ll+1).Value();
3345 const gp_Pnt &PStart = thePOn2S.Value();
3346 const gp_Vec AM(Pa, PStart);
3347 const gp_Vec MB(PStart,Pb);
3348 const Standard_Real AMMB = AM.Dot(MB);
3349
3350 if(AMMB > 0.0) {
3351 gp_Dir ABN(Pb.X() - Pa.X(), Pb.Y() - Pa.Y(), Pb.Z() - Pa.Z());
3352 Standard_Real lan = ABN.X()*AM.X() + ABN.Y()*AM.Y() + ABN.Z()*AM.Z();
3353 gp_Vec AH(lan*ABN.X(), lan*ABN.Y(), lan*ABN.Z());
3354 gp_Vec HM(AM.X() - AH.X(), AM.Y() - AH.Y(), AM.Z() - AH.Z());
3355 Standard_Real d = 0.0;
3356
3357 if(HM.X() < Deflection) {
3358 d += HM.X()*HM.X();
3359
3360 if(HM.Y() < Deflection) {
3361 d += HM.Y()*HM.Y();
3362
3363 if(HM.Z() < Deflection) {
3364 d += HM.Z()*HM.Z();
3365 } else {
3366 d = Deflection2;
3367 }
a7dd5d0f 3368 } else {
3369 d = Deflection2;
3370 }
3371 } else {
3372 d = Deflection2;
3373 }
a7dd5d0f 3374
00302ba4 3375 if(d < Deflection2) {
3376 isOnLine = Standard_True;
3377 }
a7dd5d0f 3378 } else {
00302ba4 3379 Standard_Real dab = Pa.SquareDistance(Pb);
3380 Standard_Real dap = Pa.SquareDistance(PStart);
a7dd5d0f 3381
00302ba4 3382 if(dap < dab) {
a7dd5d0f 3383 isOnLine = Standard_True;
00302ba4 3384 } else {
3385 Standard_Real dbp = Pb.SquareDistance(PStart);
3386
3387 if(dbp < dab) {
3388 isOnLine = Standard_True;
3389 }
a7dd5d0f 3390 }
3391 }
3392 }
a7dd5d0f 3393 }
3394
3395 return isOnLine;
3396}
3397
3398//==================================================================================
3399// function : AddWLine
3400// purpose :
3401//==================================================================================
3402
3403void AddWLine(IntPatch_SequenceOfLine &theLines,
3404 const Handle(IntPatch_WLine) &theWLine,
3405 const Standard_Real Deflection)
3406{
3407 Standard_Integer i = 1;
3408 Standard_Integer aNbLines = theLines.Length();
3409 Standard_Boolean isToRemove;
3410
3411 // Check each line of theLines if it is on theWLine.
3412 while (i <= aNbLines) {
3413 Handle(IntPatch_WLine) aWLine =
3414 Handle(IntPatch_WLine)::DownCast(theLines.Value(i));
00302ba4 3415
a7dd5d0f 3416 isToRemove = Standard_False;
3417
3418 if (aWLine.IsNull() == Standard_False) {
3419 // Check the middle point.
3420 Standard_Integer aMidIndex = (aWLine->NbPnts() + 1)/2;
3421
3422 if (aMidIndex > 0) {
3423 const IntSurf_PntOn2S &aPnt = aWLine->Point(aMidIndex);
3424
3425 if (IsPointOnLine(aPnt, theWLine, Deflection)) {
3426 // Middle point is on theWLine. Check vertices.
3427 isToRemove = Standard_True;
3428
3429 Standard_Integer j;
3430 const Standard_Integer aNbVtx = aWLine->NbVertex();
3431
3432 for (j = 1; j <= aNbVtx; j++) {
3433 const IntPatch_Point &aPoint = aWLine->Vertex(j);
3434
3435 if (!IsPointOnLine(aPoint.PntOn2S(), theWLine, Deflection)) {
3436 isToRemove = Standard_False;
3437 break;
3438 }
3439 }
3440 }
3441 }
3442 }
3443
3444 if (isToRemove) {
3445 theLines.Remove(i);
3446 aNbLines--;
3447 } else {
3448 i++;
3449 }
3450 }
3451
3452 // Add theWLine to the sequence of lines.
3453 theLines.Append(theWLine);
3454}
Open CASCADE Technology repository