0024033: All the orientation as a result of BRepAlgoAPI_Common is set to INTERNAL
[occt.git] / src / IntTools / IntTools_FaceFace.cxx
CommitLineData
b311480e 1// Created on: 2000-11-23
2// Created by: Michael KLOKOV
3// Copyright (c) 2000-2012 OPEN CASCADE SAS
4//
5// The content of this file is subject to the Open CASCADE Technology Public
6// License Version 6.5 (the "License"). You may not use the content of this file
7// except in compliance with the License. Please obtain a copy of the License
8// at http://www.opencascade.org and read it completely before using this file.
9//
10// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
12//
13// The Original Code and all software distributed under the License is
14// distributed on an "AS IS" basis, without warranty of any kind, and the
15// Initial Developer hereby disclaims all such warranties, including without
16// limitation, any warranties of merchantability, fitness for a particular
17// purpose or non-infringement. Please see the License for the specific terms
18// and conditions governing the rights and limitations under the License.
19
7fd59977 20
21
22#include <IntTools_FaceFace.ixx>
23
24#include <Precision.hxx>
25
26#include <TColStd_HArray1OfReal.hxx>
27#include <TColStd_Array1OfReal.hxx>
28#include <TColStd_Array1OfInteger.hxx>
29#include <TColStd_SequenceOfReal.hxx>
30#include <TColStd_ListOfInteger.hxx>
31#include <TColStd_ListIteratorOfListOfInteger.hxx>
32#include <TColStd_Array1OfListOfInteger.hxx>
33
34#include <gp_Lin2d.hxx>
35#include <gp_Ax22d.hxx>
36#include <gp_Circ2d.hxx>
37#include <gp_Torus.hxx>
38#include <gp_Cylinder.hxx>
39
40#include <Bnd_Box.hxx>
41
42#include <TColgp_HArray1OfPnt2d.hxx>
43#include <TColgp_SequenceOfPnt2d.hxx>
44#include <TColgp_Array1OfPnt.hxx>
45#include <TColgp_Array1OfPnt2d.hxx>
46
47#include <IntAna_QuadQuadGeo.hxx>
48
49#include <IntSurf_PntOn2S.hxx>
50#include <IntSurf_LineOn2S.hxx>
51#include <IntSurf_PntOn2S.hxx>
52#include <IntSurf_ListOfPntOn2S.hxx>
53#include <IntRes2d_Domain.hxx>
54#include <ProjLib_Plane.hxx>
55
56#include <IntPatch_GLine.hxx>
57#include <IntPatch_RLine.hxx>
58#include <IntPatch_WLine.hxx>
59#include <IntPatch_ALine.hxx>
60#include <IntPatch_ALineToWLine.hxx>
61
62#include <ElSLib.hxx>
63#include <ElCLib.hxx>
64
65#include <Extrema_ExtCC.hxx>
66#include <Extrema_POnCurv.hxx>
67#include <BndLib_AddSurface.hxx>
68
69#include <Adaptor3d_SurfacePtr.hxx>
70#include <Adaptor2d_HLine2d.hxx>
71
72#include <GeomAbs_SurfaceType.hxx>
73#include <GeomAbs_CurveType.hxx>
74
75#include <Geom_Surface.hxx>
76#include <Geom_Line.hxx>
77#include <Geom_Circle.hxx>
78#include <Geom_Ellipse.hxx>
79#include <Geom_Parabola.hxx>
80#include <Geom_Hyperbola.hxx>
81#include <Geom_TrimmedCurve.hxx>
82#include <Geom_BSplineCurve.hxx>
83#include <Geom_RectangularTrimmedSurface.hxx>
84#include <Geom_OffsetSurface.hxx>
85#include <Geom_Curve.hxx>
86#include <Geom_Conic.hxx>
87
88#include <Geom2d_TrimmedCurve.hxx>
89#include <Geom2d_BSplineCurve.hxx>
90#include <Geom2d_Line.hxx>
91#include <Geom2d_Curve.hxx>
92#include <Geom2d_Circle.hxx>
93
94#include <Geom2dAPI_InterCurveCurve.hxx>
95#include <Geom2dInt_GInter.hxx>
96#include <GeomAdaptor_Curve.hxx>
97#include <GeomAdaptor_HSurface.hxx>
98#include <GeomAdaptor_Surface.hxx>
99#include <GeomLib_CheckBSplineCurve.hxx>
100#include <GeomLib_Check2dBSplineCurve.hxx>
101
102#include <GeomInt_WLApprox.hxx>
103#include <GeomProjLib.hxx>
104#include <GeomAPI_ProjectPointOnSurf.hxx>
105#include <Geom2dAdaptor_Curve.hxx>
7fd59977 106#include <TopoDS.hxx>
107#include <TopoDS_Edge.hxx>
108#include <TopExp_Explorer.hxx>
109
110#include <BRep_Tool.hxx>
111#include <BRepTools.hxx>
112#include <BRepAdaptor_Surface.hxx>
113
7fd59977 114#include <IntTools_Curve.hxx>
115#include <IntTools_Tools.hxx>
116#include <IntTools_Tools.hxx>
117#include <IntTools_TopolTool.hxx>
118#include <IntTools_PntOnFace.hxx>
119#include <IntTools_PntOn2Faces.hxx>
4e57c75e 120#include <BOPInt_Context.hxx>
0fc4f2e2 121#include <IntSurf_ListIteratorOfListOfPntOn2S.hxx>
a2eede02 122
fa9681ca
P
123static
124 void RefineVector(gp_Vec2d& aV2D);
4f189102 125
a2eede02
P
126static
127 void DumpWLine(const Handle(IntPatch_WLine)& aWLine);
7fd59977 128//
129static
130 void TolR3d(const TopoDS_Face& ,
131 const TopoDS_Face& ,
132 Standard_Real& );
133static
134 Handle(Geom_Curve) MakeBSpline (const Handle(IntPatch_WLine)&,
135 const Standard_Integer,
136 const Standard_Integer);
137
138static
139 void Parameters(const Handle(GeomAdaptor_HSurface)&,
140 const Handle(GeomAdaptor_HSurface)&,
141 const gp_Pnt&,
142 Standard_Real&,
143 Standard_Real&,
144 Standard_Real&,
145 Standard_Real&);
146
147static
148 void BuildPCurves (Standard_Real f,Standard_Real l,Standard_Real& Tol,
149 const Handle (Geom_Surface)& S,
150 const Handle (Geom_Curve)& C,
151 Handle (Geom2d_Curve)& C2d);
152
153static
154 void CorrectSurfaceBoundaries(const TopoDS_Face& theFace,
155 const Standard_Real theTolerance,
156 Standard_Real& theumin,
157 Standard_Real& theumax,
158 Standard_Real& thevmin,
159 Standard_Real& thevmax);
160static
161 Standard_Boolean NotUseSurfacesForApprox
162 (const TopoDS_Face& aF1,
163 const TopoDS_Face& aF2,
164 const Handle(IntPatch_WLine)& WL,
165 const Standard_Integer ifprm,
166 const Standard_Integer ilprm);
167
168static
169 Handle(IntPatch_WLine) ComputePurgedWLine(const Handle(IntPatch_WLine)& theWLine);
170
171static
172 Standard_Real AdjustPeriodic(const Standard_Real theParameter,
173 const Standard_Real parmin,
174 const Standard_Real parmax,
175 const Standard_Real thePeriod,
176 Standard_Real& theOffset);
177
178static
179 Handle(Geom2d_BSplineCurve) MakeBSpline2d(const Handle(IntPatch_WLine)& theWLine,
180 const Standard_Integer ideb,
181 const Standard_Integer ifin,
182 const Standard_Boolean onFirst);
183
184static
185 Standard_Boolean DecompositionOfWLine(const Handle(IntPatch_WLine)& theWLine,
186 const Handle(GeomAdaptor_HSurface)& theSurface1,
187 const Handle(GeomAdaptor_HSurface)& theSurface2,
188 const TopoDS_Face& theFace1,
189 const TopoDS_Face& theFace2,
190 const IntTools_LineConstructor& theLConstructor,
191 const Standard_Boolean theAvoidLConstructor,
192 IntPatch_SequenceOfLine& theNewLines,
4f189102 193 Standard_Real& theReachedTol3d,
4e57c75e 194 const Handle(BOPInt_Context)& );
7fd59977 195
196static
197 Standard_Boolean ParameterOutOfBoundary(const Standard_Real theParameter,
198 const Handle(Geom_Curve)& theCurve,
199 const TopoDS_Face& theFace1,
200 const TopoDS_Face& theFace2,
201 const Standard_Real theOtherParameter,
202 const Standard_Boolean bIncreasePar,
4f189102 203 Standard_Real& theNewParameter,
4e57c75e 204 const Handle(BOPInt_Context)& );
7fd59977 205
206static
207 Standard_Boolean IsCurveValid(Handle(Geom2d_Curve)& thePCurve);
208
209static
210 Standard_Boolean IsPointOnBoundary(const Standard_Real theParameter,
211 const Standard_Real theFirstBoundary,
212 const Standard_Real theSecondBoundary,
213 const Standard_Real theResolution,
214 Standard_Boolean& IsOnFirstBoundary);
215static
216 Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
217 const gp_Pnt2d& theLastPoint,
218 const Standard_Real theUmin,
219 const Standard_Real theUmax,
220 const Standard_Real theVmin,
221 const Standard_Real theVmax,
222 gp_Pnt2d& theNewPoint);
223
224
225static
226 Standard_Integer ComputeTangentZones( const Handle(GeomAdaptor_HSurface)& theSurface1,
227 const Handle(GeomAdaptor_HSurface)& theSurface2,
228 const TopoDS_Face& theFace1,
229 const TopoDS_Face& theFace2,
230 Handle(TColgp_HArray1OfPnt2d)& theResultOnS1,
231 Handle(TColgp_HArray1OfPnt2d)& theResultOnS2,
4f189102 232 Handle(TColStd_HArray1OfReal)& theResultRadius,
4e57c75e 233 const Handle(BOPInt_Context)& );
7fd59977 234
235static
236 Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
237 const gp_Pnt2d& theLastPoint,
238 const Standard_Real theUmin,
239 const Standard_Real theUmax,
240 const Standard_Real theVmin,
241 const Standard_Real theVmax,
242 const gp_Pnt2d& theTanZoneCenter,
243 const Standard_Real theZoneRadius,
244 Handle(GeomAdaptor_HSurface) theGASurface,
245 gp_Pnt2d& theNewPoint);
246
247static
248 Standard_Boolean IsInsideTanZone(const gp_Pnt2d& thePoint,
249 const gp_Pnt2d& theTanZoneCenter,
250 const Standard_Real theZoneRadius,
251 Handle(GeomAdaptor_HSurface) theGASurface);
252
253static
4f189102
P
254 gp_Pnt2d AdjustByNeighbour(const gp_Pnt2d& theaNeighbourPoint,
255 const gp_Pnt2d& theOriginalPoint,
256 Handle(GeomAdaptor_HSurface) theGASurface);
7fd59977 257static
4f189102
P
258 Standard_Boolean ApproxWithPCurves(const gp_Cylinder& theCyl,
259 const gp_Sphere& theSph);
7fd59977 260
261static void PerformPlanes(const Handle(GeomAdaptor_HSurface)& theS1,
262 const Handle(GeomAdaptor_HSurface)& theS2,
263 const Standard_Real TolAng,
264 const Standard_Real TolTang,
265 const Standard_Boolean theApprox1,
266 const Standard_Boolean theApprox2,
267 IntTools_SequenceOfCurves& theSeqOfCurve,
268 Standard_Boolean& theTangentFaces);
269
270static Standard_Boolean ClassifyLin2d(const Handle(GeomAdaptor_HSurface)& theS,
271 const gp_Lin2d& theLin2d,
272 const Standard_Real theTol,
273 Standard_Real& theP1,
274 Standard_Real& theP2);
0fc4f2e2 275//
7fd59977 276static
277 void ApproxParameters(const Handle(GeomAdaptor_HSurface)& aHS1,
278 const Handle(GeomAdaptor_HSurface)& aHS2,
279 Standard_Integer& iDegMin,
4f189102 280 Standard_Integer& iNbIter,
0fc4f2e2 281 Standard_Integer& iDegMax);
7fd59977 282
0fc4f2e2
P
283static
284 void Tolerances(const Handle(GeomAdaptor_HSurface)& aHS1,
285 const Handle(GeomAdaptor_HSurface)& aHS2,
286 Standard_Real& aTolArc,
287 Standard_Real& aTolTang,
288 Standard_Real& aUVMaxStep,
289 Standard_Real& aDeflection);
290
0fc4f2e2
P
291static
292 Standard_Boolean SortTypes(const GeomAbs_SurfaceType aType1,
293 const GeomAbs_SurfaceType aType2);
294static
295 Standard_Integer IndexType(const GeomAbs_SurfaceType aType);
d10203e8 296
7fd59977 297//
4f189102
P
298static
299 Standard_Real MaxSquareDistance (const Standard_Real aT,
300 const Handle(Geom_Curve)& aC3D,
301 const Handle(Geom2d_Curve)& aC2D1,
302 const Handle(Geom2d_Curve)& aC2D2,
303 const Handle(GeomAdaptor_HSurface) myHS1,
304 const Handle(GeomAdaptor_HSurface) myHS2,
305 const TopoDS_Face& aF1,
306 const TopoDS_Face& aF2,
4e57c75e 307 const Handle(BOPInt_Context)& aCtx);
989341c5 308
309static
310 Standard_Boolean CheckPCurve(const Handle(Geom2d_Curve)& aPC,
311 const TopoDS_Face& aFace);
312
4f189102 313//
37b6f439 314static
315 Standard_Real FindMaxSquareDistance (const Standard_Real aA,
316 const Standard_Real aB,
317 const Standard_Real aEps,
318 const Handle(Geom_Curve)& aC3D,
319 const Handle(Geom2d_Curve)& aC2D1,
320 const Handle(Geom2d_Curve)& aC2D2,
0c5acd27 321 const Handle(GeomAdaptor_HSurface)& myHS1,
322 const Handle(GeomAdaptor_HSurface)& myHS2,
37b6f439 323 const TopoDS_Face& aF1,
324 const TopoDS_Face& aF2,
4e57c75e 325 const Handle(BOPInt_Context)& aCtx);
37b6f439 326
7fd59977 327//=======================================================================
328//function :
329//purpose :
330//=======================================================================
4f189102 331IntTools_FaceFace::IntTools_FaceFace()
7fd59977 332{
3f16d970 333 myIsDone=Standard_False;
7fd59977 334 myTangentFaces=Standard_False;
335 //
336 myHS1 = new GeomAdaptor_HSurface ();
337 myHS2 = new GeomAdaptor_HSurface ();
338 myTolReached2d=0.;
339 myTolReached3d=0.;
340 SetParameters(Standard_True, Standard_True, Standard_True, 1.e-07);
4f189102
P
341
342}
343//=======================================================================
344//function : SetContext
345//purpose :
346//=======================================================================
4e57c75e 347void IntTools_FaceFace::SetContext(const Handle(BOPInt_Context)& aContext)
4f189102
P
348{
349 myContext=aContext;
350}
351//=======================================================================
352//function : Context
353//purpose :
354//=======================================================================
4e57c75e 355const Handle(BOPInt_Context)& IntTools_FaceFace::Context()const
4f189102
P
356{
357 return myContext;
7fd59977 358}
359//=======================================================================
360//function : Face1
361//purpose :
362//=======================================================================
4f189102 363const TopoDS_Face& IntTools_FaceFace::Face1() const
7fd59977 364{
365 return myFace1;
366}
7fd59977 367//=======================================================================
368//function : Face2
369//purpose :
370//=======================================================================
4f189102 371const TopoDS_Face& IntTools_FaceFace::Face2() const
7fd59977 372{
373 return myFace2;
374}
7fd59977 375//=======================================================================
376//function : TangentFaces
377//purpose :
378//=======================================================================
4f189102 379Standard_Boolean IntTools_FaceFace::TangentFaces() const
7fd59977 380{
381 return myTangentFaces;
382}
383//=======================================================================
384//function : Points
385//purpose :
386//=======================================================================
4f189102 387const IntTools_SequenceOfPntOn2Faces& IntTools_FaceFace::Points() const
7fd59977 388{
389 return myPnts;
390}
391//=======================================================================
392//function : IsDone
393//purpose :
394//=======================================================================
4f189102 395Standard_Boolean IntTools_FaceFace::IsDone() const
7fd59977 396{
397 return myIsDone;
398}
399//=======================================================================
400//function : TolReached3d
401//purpose :
402//=======================================================================
4f189102 403Standard_Real IntTools_FaceFace::TolReached3d() const
7fd59977 404{
405 return myTolReached3d;
406}
407//=======================================================================
408//function : Lines
409//purpose : return lines of intersection
410//=======================================================================
4f189102 411const IntTools_SequenceOfCurves& IntTools_FaceFace::Lines() const
7fd59977 412{
4f189102
P
413 StdFail_NotDone_Raise_if
414 (!myIsDone,
415 "IntTools_FaceFace::Lines() => !myIntersector.IsDone()");
7fd59977 416 return mySeqOfCurve;
417}
7fd59977 418//=======================================================================
419//function : TolReached2d
420//purpose :
421//=======================================================================
4f189102 422Standard_Real IntTools_FaceFace::TolReached2d() const
7fd59977 423{
424 return myTolReached2d;
425}
426// =======================================================================
427// function: SetParameters
428//
429// =======================================================================
4f189102
P
430void IntTools_FaceFace::SetParameters(const Standard_Boolean ToApproxC3d,
431 const Standard_Boolean ToApproxC2dOnS1,
432 const Standard_Boolean ToApproxC2dOnS2,
433 const Standard_Real ApproximationTolerance)
7fd59977 434{
435 myApprox = ToApproxC3d;
436 myApprox1 = ToApproxC2dOnS1;
437 myApprox2 = ToApproxC2dOnS2;
438 myTolApprox = ApproximationTolerance;
439}
440//=======================================================================
441//function : SetList
442//purpose :
443//=======================================================================
7fd59977 444void IntTools_FaceFace::SetList(IntSurf_ListOfPntOn2S& aListOfPnts)
445{
446 myListOfPnts = aListOfPnts;
447}
448//=======================================================================
449//function : Perform
450//purpose : intersect surfaces of the faces
451//=======================================================================
0fc4f2e2
P
452 void IntTools_FaceFace::Perform(const TopoDS_Face& aF1,
453 const TopoDS_Face& aF2)
7fd59977 454{
0fc4f2e2
P
455 Standard_Boolean hasCone, RestrictLine, bTwoPlanes, bReverse;
456 Standard_Integer aNbLin, aNbPnts, i, NbLinPP;
7fd59977 457 Standard_Real TolArc, TolTang, Deflection, UVMaxStep;
458 Standard_Real umin, umax, vmin, vmax;
459 Standard_Real aTolF1, aTolF2;
460 GeomAbs_SurfaceType aType1, aType2;
461 Handle(Geom_Surface) S1, S2;
462 Handle(IntTools_TopolTool) dom1, dom2;
0fc4f2e2 463 BRepAdaptor_Surface aBAS1, aBAS2;
7fd59977 464 //
4f189102 465 if (myContext.IsNull()) {
4e57c75e 466 myContext=new BOPInt_Context;
4f189102
P
467 }
468 //
7fd59977 469 mySeqOfCurve.Clear();
7fd59977 470 myTolReached2d=0.;
471 myTolReached3d=0.;
7fd59977 472 myIsDone = Standard_False;
0fc4f2e2
P
473 myNbrestr=0;//?
474 hasCone = Standard_False;
475 bTwoPlanes = Standard_False;
476 //
477 myFace1=aF1;
478 myFace2=aF2;
479 //
480 aBAS1.Initialize(myFace1, Standard_False);
481 aBAS2.Initialize(myFace2, Standard_False);
482 aType1=aBAS1.GetType();
483 aType2=aBAS2.GetType();
484 //
0fc4f2e2
P
485 bReverse=SortTypes(aType1, aType2);
486 if (bReverse) {
487 myFace1=aF2;
488 myFace2=aF1;
489 aType1=aBAS2.GetType();
490 aType2=aBAS1.GetType();
491 //
492 if (myListOfPnts.Extent()) {
493 Standard_Real aU1,aV1,aU2,aV2;
494 IntSurf_ListIteratorOfListOfPntOn2S aItP2S;
495 //
496 aItP2S.Initialize(myListOfPnts);
497 for (; aItP2S.More(); aItP2S.Next()){
498 IntSurf_PntOn2S& aP2S=aItP2S.Value();
499 aP2S.Parameters(aU1,aV1,aU2,aV2);
500 aP2S.SetValue(aU2,aV2,aU1,aV1);
501 }
502 }
503 }
0fc4f2e2
P
504 //
505 S1=BRep_Tool::Surface(myFace1);
506 S2=BRep_Tool::Surface(myFace2);
7fd59977 507 //
0fc4f2e2
P
508 aTolF1=BRep_Tool::Tolerance(myFace1);
509 aTolF2=BRep_Tool::Tolerance(myFace2);
7fd59977 510 //
511 TolArc= aTolF1 + aTolF2;
512 TolTang = TolArc;
513 //
0fc4f2e2 514 NbLinPP = 0;
7fd59977 515 if(aType1==GeomAbs_Plane && aType2==GeomAbs_Plane){
516 bTwoPlanes = Standard_True;
517
0fc4f2e2 518 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
7fd59977 519 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
520 //
0fc4f2e2 521 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
7fd59977 522 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
523 Standard_Real TolAng = 1.e-8;
0fc4f2e2 524 PerformPlanes(myHS1, myHS2, TolAng, TolTang, myApprox1, myApprox2,
7fd59977 525 mySeqOfCurve, myTangentFaces);
526
527 myIsDone = Standard_True;
4f189102
P
528
529 if(!myTangentFaces) {
0fc4f2e2 530 //
4f189102
P
531 NbLinPP = mySeqOfCurve.Length();
532 if(NbLinPP) {
533 Standard_Real aTolFMax;
0fc4f2e2 534 //
4f189102
P
535 myTolReached3d = 1.e-7;
536 //
537 aTolFMax=Max(aTolF1, aTolF2);
538 //
539 if (aTolFMax>myTolReached3d) {
540 myTolReached3d=aTolFMax;
541 }
542 myTolReached2d = myTolReached3d;
543 //
544 if (bReverse) {
545 Handle(Geom2d_Curve) aC2D1, aC2D2;
546 //
547 aNbLin=mySeqOfCurve.Length();
548 for (i=1; i<=aNbLin; ++i) {
549 IntTools_Curve& aIC=mySeqOfCurve(i);
550 aC2D1=aIC.FirstCurve2d();
551 aC2D2=aIC.SecondCurve2d();
552 //
553 aIC.SetFirstCurve2d(aC2D2);
554 aIC.SetSecondCurve2d(aC2D1);
555 }
556 }
0fc4f2e2
P
557 }
558 }
7fd59977 559 return;
0fc4f2e2 560 }//if(aType1==GeomAbs_Plane && aType2==GeomAbs_Plane){
7fd59977 561 //
562 if (aType1==GeomAbs_Plane &&
563 (aType2==GeomAbs_Cylinder ||
564 aType2==GeomAbs_Cone ||
565 aType2==GeomAbs_Torus)) {
566 Standard_Real dU, dV;
567 // F1
0fc4f2e2 568 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
7fd59977 569 dU=0.1*(umax-umin);
570 dV=0.1*(vmax-vmin);
571 umin=umin-dU;
572 umax=umax+dU;
573 vmin=vmin-dV;
574 vmax=vmax+dV;
575 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
576 // F2
0fc4f2e2
P
577 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
578 CorrectSurfaceBoundaries(myFace2, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 579 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
580 //
581 if( aType2==GeomAbs_Cone ) {
582 TolArc = 0.0001;
7fd59977 583 hasCone = Standard_True;
584 }
585 }
586 //
587 else if ((aType1==GeomAbs_Cylinder||
588 aType1==GeomAbs_Cone ||
589 aType1==GeomAbs_Torus) &&
590 aType2==GeomAbs_Plane) {
591 Standard_Real dU, dV;
592 //F1
0fc4f2e2
P
593 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
594 CorrectSurfaceBoundaries(myFace1, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 595 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
596 // F2
0fc4f2e2 597 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
7fd59977 598 dU=0.1*(umax-umin);
599 dV=0.1*(vmax-vmin);
600 umin=umin-dU;
601 umax=umax+dU;
602 vmin=vmin-dV;
603 vmax=vmax+dV;
604 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
605 //
606 if( aType1==GeomAbs_Cone ) {
607 TolArc = 0.0001;
7fd59977 608 hasCone = Standard_True;
609 }
610 }
611
612 //
613 else {
0fc4f2e2 614 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
7fd59977 615 //
0fc4f2e2 616 CorrectSurfaceBoundaries(myFace1, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 617 //
618 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
619 //
0fc4f2e2 620 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
7fd59977 621 //
0fc4f2e2 622 CorrectSurfaceBoundaries(myFace2, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 623 //
624 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
625 }
626 //
627 dom1 = new IntTools_TopolTool(myHS1);
628 dom2 = new IntTools_TopolTool(myHS2);
629 //
630 myLConstruct.Load(dom1, dom2, myHS1, myHS2);
631 //
632 Deflection = (hasCone) ? 0.085 : 0.1;
633 UVMaxStep = 0.001;
634 //
0fc4f2e2
P
635 Tolerances(myHS1, myHS2, TolArc, TolTang, UVMaxStep, Deflection);
636 //
637 myIntersector.SetTolerances(TolArc, TolTang, UVMaxStep, Deflection);
7fd59977 638 //
639 RestrictLine = Standard_False;
640 //
641 if((myHS1->IsUClosed() && !myHS1->IsUPeriodic()) ||
642 (myHS1->IsVClosed() && !myHS1->IsVPeriodic()) ||
643 (myHS2->IsUClosed() && !myHS2->IsUPeriodic()) ||
644 (myHS2->IsVClosed() && !myHS2->IsVPeriodic())) {
645 RestrictLine = Standard_True;
646 }
647 //
648 if(((aType1 != GeomAbs_BSplineSurface) &&
649 (aType1 != GeomAbs_BezierSurface) &&
650 (aType1 != GeomAbs_OtherSurface)) &&
651 ((aType2 != GeomAbs_BSplineSurface) &&
652 (aType2 != GeomAbs_BezierSurface) &&
653 (aType2 != GeomAbs_OtherSurface))) {
654 RestrictLine = Standard_True;
655 //
656 if ((aType1 == GeomAbs_Torus) ||
657 (aType2 == GeomAbs_Torus) ) {
658 myListOfPnts.Clear();
659 }
660 }
661 //
662 if(!RestrictLine) {
663 TopExp_Explorer aExp;
664 //
665 for(i = 0; (!RestrictLine) && (i < 2); i++) {
666 const TopoDS_Face& aF=(!i) ? myFace1 : myFace2;
667 aExp.Init(aF, TopAbs_EDGE);
668 for(; aExp.More(); aExp.Next()) {
669 const TopoDS_Edge& aE=TopoDS::Edge(aExp.Current());
670 //
671 if(BRep_Tool::Degenerated(aE)) {
672 RestrictLine = Standard_True;
673 break;
674 }
675 }
676 }
677 }
678 //
679 myIntersector.Perform(myHS1, dom1, myHS2, dom2,
680 TolArc, TolTang,
681 myListOfPnts, RestrictLine);
682 //
683 myIsDone = myIntersector.IsDone();
684 if (myIsDone) {
685 myTangentFaces=myIntersector.TangentFaces();
686 if (myTangentFaces) {
687 return;
688 }
689 //
690 if(RestrictLine) {
691 myListOfPnts.Clear(); // to use LineConstructor
692 }
693 //
694 aNbLin = myIntersector.NbLines();
695 for (i=1; i<=aNbLin; ++i) {
696 MakeCurve(i, dom1, dom2);
697 }
698 //
699 ComputeTolReached3d();
700 //
0fc4f2e2
P
701 if (bReverse) {
702 Handle(Geom2d_Curve) aC2D1, aC2D2;
703 //
704 aNbLin=mySeqOfCurve.Length();
705 for (i=1; i<=aNbLin; ++i) {
706 IntTools_Curve& aIC=mySeqOfCurve(i);
707 aC2D1=aIC.FirstCurve2d();
708 aC2D2=aIC.SecondCurve2d();
709 //
710 aIC.SetFirstCurve2d(aC2D2);
711 aIC.SetSecondCurve2d(aC2D1);
712 }
713 }
0fc4f2e2
P
714 //
715 // Points
7fd59977 716 Standard_Real U1,V1,U2,V2;
717 IntTools_PntOnFace aPntOnF1, aPntOnF2;
0fc4f2e2 718 IntTools_PntOn2Faces aPntOn2Faces;
7fd59977 719 //
720 aNbPnts=myIntersector.NbPnts();
721 for (i=1; i<=aNbPnts; ++i) {
722 const IntSurf_PntOn2S& aISPnt=myIntersector.Point(i).PntOn2S();
723 const gp_Pnt& aPnt=aISPnt.Value();
724 aISPnt.Parameters(U1,V1,U2,V2);
0fc4f2e2
P
725 aPntOnF1.Init(myFace1, aPnt, U1, V1);
726 aPntOnF2.Init(myFace2, aPnt, U2, V2);
d10203e8 727 //
0fc4f2e2
P
728 if (!bReverse) {
729 aPntOn2Faces.SetP1(aPntOnF1);
730 aPntOn2Faces.SetP2(aPntOnF2);
731 }
732 else {
733 aPntOn2Faces.SetP2(aPntOnF1);
734 aPntOn2Faces.SetP1(aPntOnF2);
735 }
7fd59977 736 myPnts.Append(aPntOn2Faces);
737 }
738 //
739 }
740}
741//=======================================================================
742//function :ComputeTolReached3d
743//purpose :
744//=======================================================================
745 void IntTools_FaceFace::ComputeTolReached3d()
746{
747 Standard_Integer aNbLin;
748 GeomAbs_SurfaceType aType1, aType2;
749 //
750 aNbLin=myIntersector.NbLines();
37b6f439 751 if (!aNbLin) {
752 return;
753 }
754 //
7fd59977 755 aType1=myHS1->Surface().GetType();
756 aType2=myHS2->Surface().GetType();
757 //
4f189102
P
758 if (aType1==GeomAbs_Cylinder && aType2==GeomAbs_Cylinder) {
759 if (aNbLin==2){
760 Handle(IntPatch_Line) aIL1, aIL2;
761 IntPatch_IType aTL1, aTL2;
7fd59977 762 //
4f189102
P
763 aIL1=myIntersector.Line(1);
764 aIL2=myIntersector.Line(2);
765 aTL1=aIL1->ArcType();
766 aTL2=aIL2->ArcType();
767 if (aTL1==IntPatch_Lin && aTL2==IntPatch_Lin) {
768 Standard_Real aD, aDTresh, dTol;
769 gp_Lin aL1, aL2;
770 //
771 dTol=1.e-8;
772 aDTresh=1.5e-6;
773 //
774 aL1=Handle(IntPatch_GLine)::DownCast(aIL1)->Line();
775 aL2=Handle(IntPatch_GLine)::DownCast(aIL2)->Line();
776 aD=aL1.Distance(aL2);
777 aD=0.5*aD;
778 if (aD<aDTresh) {
779 myTolReached3d=aD+dTol;
780 }
781 return;
7fd59977 782 }
783 }
4f189102 784 //ZZ
37b6f439 785 if (aNbLin) {// Check the distances
786 Standard_Integer i, aNbP, j ;
575aec54 787 Standard_Real aT1, aT2, dT, aD2, aD2Max, aEps, aT11, aT12;
4f189102
P
788 //
789 aD2Max=0.;
0c5acd27 790 aNbP=10;
4f189102
P
791 aNbLin=mySeqOfCurve.Length();
792 //
793 for (i=1; i<=aNbLin; ++i) {
794 const IntTools_Curve& aIC=mySeqOfCurve(i);
795 const Handle(Geom_Curve)& aC3D=aIC.Curve();
796 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
797 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
798 //
799 if (aC3D.IsNull()) {
800 continue;
801 }
802 const Handle(Geom_BSplineCurve)& aBC=
803 Handle(Geom_BSplineCurve)::DownCast(aC3D);
804 if (aBC.IsNull()) {
805 continue;
806 }
807 //
808 aT1=aBC->FirstParameter();
809 aT2=aBC->LastParameter();
810 //
37b6f439 811 aEps=0.01*(aT2-aT1);
8e0115e4 812 dT=(aT2-aT1)/aNbP;
8e0115e4 813 for (j=1; j<aNbP; ++j) {
37b6f439 814 aT11=aT1+j*dT;
815 aT12=aT11+dT;
816 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
817 myHS1, myHS2, myFace1, myFace2, myContext);
4f189102
P
818 if (aD2>aD2Max) {
819 aD2Max=aD2;
820 }
37b6f439 821 }
4f189102
P
822 }//for (i=1; i<=aNbLin; ++i) {
823 //
824 myTolReached3d=sqrt(aD2Max);
37b6f439 825 }// if (aNbLin)
4f189102
P
826 }// if (aType1==GeomAbs_Cylinder && aType2==GeomAbs_Cylinder) {
827 //
0fc4f2e2 828 //904/G3 f
4f189102 829 else if (aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
7fd59977 830 Standard_Real aTolF1, aTolF2, aTolFMax, aTolTresh;
831 //
832 aTolTresh=1.e-7;
833 //
834 aTolF1 = BRep_Tool::Tolerance(myFace1);
835 aTolF2 = BRep_Tool::Tolerance(myFace2);
836 aTolFMax=Max(aTolF1, aTolF2);
837 //
838 if (aTolFMax>aTolTresh) {
839 myTolReached3d=aTolFMax;
840 }
4f189102 841 }//if (aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
0fc4f2e2 842 //t
7fd59977 843 //IFV Bug OCC20297
4f189102
P
844 else if((aType1 == GeomAbs_Cylinder && aType2 == GeomAbs_Plane) ||
845 (aType2 == GeomAbs_Cylinder && aType1 == GeomAbs_Plane)) {
7fd59977 846 if(aNbLin == 1) {
847 const Handle(IntPatch_Line)& aIL1 = myIntersector.Line(1);
848 if(aIL1->ArcType() == IntPatch_Circle) {
849 gp_Circ aCir = Handle(IntPatch_GLine)::DownCast(aIL1)->Circle();
850 gp_XYZ aCirDir = aCir.Axis().Direction().XYZ();
851 gp_XYZ aPlDir;
852 gp_Pln aPln;
853 if(aType1 == GeomAbs_Plane) {
854 aPln = myHS1->Surface().Plane();
855 }
856 else {
857 aPln = myHS2->Surface().Plane();
858 }
859 aPlDir = aPln.Axis().Direction().XYZ();
860 Standard_Real cs = aCirDir*aPlDir;
861 if(cs < 0.) aPlDir.Reverse();
862 Standard_Real eps = 1.e-14;
863 if(!aPlDir.IsEqual(aCirDir, eps)) {
864 Standard_Integer aNbP = 11;
c6541a0c
D
865 Standard_Real dt = 2.*M_PI / (aNbP - 1), t;
866 for(t = 0.; t < 2.*M_PI; t += dt) {
7fd59977 867 Standard_Real d = aPln.Distance(ElCLib::Value(t, aCir));
868 if(myTolReached3d < d) myTolReached3d = d;
869 }
870 myTolReached3d *= 1.1;
871 }
872 } //aIL1->ArcType() == IntPatch_Circle
873 } //aNbLin == 1
4f189102 874 } // aType1 == GeomAbs_Cylinder && aType2 == GeomAbs_Plane)
7fd59977 875 //End IFV Bug OCC20297
0fc4f2e2 876 //
4f189102
P
877 else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Torus) ||
878 (aType2==GeomAbs_Plane && aType1==GeomAbs_Torus)) {
0fc4f2e2
P
879 aNbLin=mySeqOfCurve.Length();
880 if (aNbLin!=1) {
881 return;
882 }
883 //
884 Standard_Integer i, aNbP;
885 Standard_Real aT, aT1, aT2, dT, aUT, aVT, aUP, aVP;
886 Standard_Real aDP, aDT, aDmax;
887 gp_Pln aPln;
888 gp_Torus aTorus;
889 gp_Pnt aP, aPP, aPT;
890 //
891 const IntTools_Curve& aIC=mySeqOfCurve(1);
892 const Handle(Geom_Curve)& aC3D=aIC.Curve();
4f189102
P
893 const Handle(Geom_BSplineCurve)& aBS=
894 Handle(Geom_BSplineCurve)::DownCast(aC3D);
0fc4f2e2
P
895 if (aBS.IsNull()) {
896 return;
897 }
898 //
899 aT1=aBS->FirstParameter();
900 aT2=aBS->LastParameter();
901 //
902 aPln =(aType1==GeomAbs_Plane) ? myHS1->Plane() : myHS2->Plane();
903 aTorus=(aType1==GeomAbs_Plane) ? myHS2->Torus() : myHS1->Torus();
904 //
905 aDmax=-1.;
906 aNbP=11;
907 dT=(aT2-aT1)/(aNbP-1);
908 for (i=0; i<aNbP; ++i) {
909 aT=aT1+i*dT;
910 if (i==aNbP-1) {
911 aT=aT2;
912 }
913 //
914 aC3D->D0(aT, aP);
915 //
916 ElSLib::Parameters(aPln, aP, aUP, aVP);
917 aPP=ElSLib::Value(aUP, aVP, aPln);
918 aDP=aP.SquareDistance(aPP);
919 if (aDP>aDmax) {
920 aDmax=aDP;
921 }
922 //
923 ElSLib::Parameters(aTorus, aP, aUT, aVT);
924 aPT=ElSLib::Value(aUT, aVT, aTorus);
925 aDT=aP.SquareDistance(aPT);
926 if (aDT>aDmax) {
927 aDmax=aDT;
928 }
929 }
930 //
931 if (aDmax > myTolReached3d*myTolReached3d) {
932 myTolReached3d=sqrt(aDmax);
933 myTolReached3d=1.1*myTolReached3d;
934 }
935 }// if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Torus) ||
a9f7b6b5 936 //
4f189102
P
937 else if ((aType1==GeomAbs_SurfaceOfRevolution && aType2==GeomAbs_Cylinder) ||
938 (aType2==GeomAbs_SurfaceOfRevolution && aType1==GeomAbs_Cylinder)) {
d10203e8 939 Standard_Integer i, j, aNbP;
4f189102 940 Standard_Real aT, aT1, aT2, dT, aD2max, aD2;
d10203e8
P
941 //
942 aNbLin=mySeqOfCurve.Length();
4f189102 943 aD2max=0.;
d10203e8
P
944 aNbP=11;
945 //
946 for (i=1; i<=aNbLin; ++i) {
947 const IntTools_Curve& aIC=mySeqOfCurve(i);
948 const Handle(Geom_Curve)& aC3D=aIC.Curve();
949 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
950 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
951 //
952 if (aC3D.IsNull()) {
953 continue;
954 }
4f189102
P
955 const Handle(Geom_BSplineCurve)& aBC=
956 Handle(Geom_BSplineCurve)::DownCast(aC3D);
d10203e8
P
957 if (aBC.IsNull()) {
958 return;
959 }
960 //
961 aT1=aBC->FirstParameter();
962 aT2=aBC->LastParameter();
963 //
964 dT=(aT2-aT1)/(aNbP-1);
965 for (j=0; j<aNbP; ++j) {
966 aT=aT1+j*dT;
967 if (j==aNbP-1) {
968 aT=aT2;
969 }
970 //
4f189102
P
971 aD2=MaxSquareDistance(aT, aC3D, aC2D1, aC2D2,
972 myHS1, myHS2, myFace1, myFace2, myContext);
973 if (aD2>aD2max) {
974 aD2max=aD2;
d10203e8
P
975 }
976 }//for (j=0; j<aNbP; ++j) {
37b6f439 977
d10203e8
P
978 }//for (i=1; i<=aNbLin; ++i) {
979 //
4f189102
P
980 aD2=myTolReached3d*myTolReached3d;
981 if (aD2max > aD2) {
982 myTolReached3d=sqrt(aD2max);
d10203e8 983 }
a9f7b6b5 984 }//if((aType1==GeomAbs_SurfaceOfRevolution ...
0c5acd27 985 else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Sphere) ||
986 (aType2==GeomAbs_Plane && aType1==GeomAbs_Sphere)) {
987 Standard_Integer i, j, aNbP;
988 Standard_Real aT, aT1, aT2, dT, aD2max, aD2, aEps, aT11, aT12;
989 //
990 aNbLin=mySeqOfCurve.Length();
991 aD2max=0.;
992 aNbP=10;
993 //
994 for (i=1; i<=aNbLin; ++i) {
995 const IntTools_Curve& aIC=mySeqOfCurve(i);
996 const Handle(Geom_Curve)& aC3D=aIC.Curve();
997 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
998 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
999 //
1000 const Handle(Geom2d_BSplineCurve)& aBC2D1=
1001 Handle(Geom2d_BSplineCurve)::DownCast(aC2D1);
1002 const Handle(Geom2d_BSplineCurve)& aBC2D2=
1003 Handle(Geom2d_BSplineCurve)::DownCast(aC2D2);
1004 //
1005 if (aBC2D1.IsNull() && aBC2D2.IsNull()) {
1006 return;
1007 }
1008 //
1009 if (!aBC2D1.IsNull()) {
1010 aT1=aBC2D1->FirstParameter();
1011 aT2=aBC2D1->LastParameter();
1012 }
1013 else {
1014 aT1=aBC2D2->FirstParameter();
1015 aT2=aBC2D2->LastParameter();
1016 }
1017 //
1018 aEps=0.01*(aT2-aT1);
1019 dT=(aT2-aT1)/(aNbP-1);
1020 for (j=0; j<aNbP; ++j) {
1021 aT=aT1+j*dT;
1022 aT11=aT1+j*dT;
1023 aT12=aT11+dT;
1024 if (j==aNbP-1) {
1025 aT12=aT2;
1026 }
1027 //
1028 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
1029 myHS1, myHS2, myFace1, myFace2, myContext);
1030 if (aD2>aD2max) {
1031 aD2max=aD2;
1032 }
1033 }//for (j=0; j<aNbP; ++j) {
1034
1035 }//for (i=1; i<=aNbLin; ++i) {
1036 //
1037 aD2=myTolReached3d*myTolReached3d;
1038 if (aD2max > aD2) {
1039 myTolReached3d=sqrt(aD2max);
1040 }
1041 }//else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Sphere) ...
4e57c75e 1042 else if (!myApprox) {
1043 Standard_Integer i, aNbP, j ;
1044 Standard_Real aT1, aT2, dT, aD2, aD2Max, aEps, aT11, aT12;
1045 //
1046 aD2Max=0.;
1047 aNbLin=mySeqOfCurve.Length();
1048 //
1049 for (i=1; i<=aNbLin; ++i) {
1050 const IntTools_Curve& aIC=mySeqOfCurve(i);
1051 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1052 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1053 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1054 //
1055 if (aC3D.IsNull()) {
1056 continue;
1057 }
1058 const Handle(Geom_BSplineCurve)& aBC=
1059 Handle(Geom_BSplineCurve)::DownCast(aC3D);
1060 if (aBC.IsNull()) {
1061 continue;
1062 }
1063 //
1064 aT1=aBC->FirstParameter();
1065 aT2=aBC->LastParameter();
1066 //
1067 aEps=0.0001*(aT2-aT1);
1068 aNbP=11;
1069 dT=(aT2-aT1)/aNbP;
1070 for (j=1; j<aNbP-1; ++j) {
1071 aT11=aT1+j*dT;
1072 aT12=aT11+dT;
1073 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
1074 myHS1, myHS2, myFace1, myFace2, myContext);
1075 if (aD2>aD2Max) {
1076 aD2Max=aD2;
1077 }
1078 }
1079 }//for (i=1; i<=aNbLin; ++i) {
1080 myTolReached3d=sqrt(aD2Max);
1081 }
1082 //modified by NIZNHY-PKV Thu Aug 30 13:31:12 2012t
7fd59977 1083}
1084//=======================================================================
1085//function : MakeCurve
1086//purpose :
1087//=======================================================================
1088 void IntTools_FaceFace::MakeCurve(const Standard_Integer Index,
1089 const Handle(Adaptor3d_TopolTool)& dom1,
1090 const Handle(Adaptor3d_TopolTool)& dom2)
1091{
989341c5 1092 Standard_Boolean bDone, rejectSurface, reApprox, bAvoidLineConstructor,
1093 bPCurvesOk;
7fd59977 1094 Standard_Boolean ok;
1095 Standard_Integer i, j, aNbParts;
1096 Standard_Real fprm, lprm;
1097 Standard_Real Tolpc;
1098 Handle(IntPatch_Line) L;
1099 IntPatch_IType typl;
1100 Handle(Geom_Curve) newc;
1101 //
1102 const Standard_Real TOLCHECK =0.0000001;
1103 const Standard_Real TOLANGCHECK=0.1;
1104 //
1105 rejectSurface = Standard_False;
1106 reApprox = Standard_False;
989341c5 1107 //
1108 bPCurvesOk = Standard_True;
7fd59977 1109
1110 reapprox:;
1111
1112 Tolpc = myTolApprox;
1113 bAvoidLineConstructor = Standard_False;
1114 L = myIntersector.Line(Index);
1115 typl = L->ArcType();
1116 //
1117 if(typl==IntPatch_Walking) {
1118 Handle(IntPatch_Line) anewL;
1119 //
1120 const Handle(IntPatch_WLine)& aWLine=
1121 Handle(IntPatch_WLine)::DownCast(L);
4f189102
P
1122 //DEBf
1123 //DumpWLine(aWLine);
1124 //DEBt
7fd59977 1125 anewL = ComputePurgedWLine(aWLine);
1126 if(anewL.IsNull()) {
1127 return;
1128 }
1129 L = anewL;
4f189102
P
1130 //DEBf
1131 /*
1132 { const Handle(IntPatch_WLine)& aWLineX=
1133 Handle(IntPatch_WLine)::DownCast(L);
1134 DumpWLine(aWLineX);
1135 }
1136 */
1137 //DEBt
7fd59977 1138 //
1139 if(!myListOfPnts.IsEmpty()) {
1140 bAvoidLineConstructor = Standard_True;
1141 }
1142
1143 Standard_Integer nbp = aWLine->NbPnts();
1144 const IntSurf_PntOn2S& p1 = aWLine->Point(1);
1145 const IntSurf_PntOn2S& p2 = aWLine->Point(nbp);
1146
1147 const gp_Pnt& P1 = p1.Value();
1148 const gp_Pnt& P2 = p2.Value();
1149
1150 if(P1.SquareDistance(P2) < 1.e-14) {
1151 bAvoidLineConstructor = Standard_False;
1152 }
1153
1154 }
1155 //
1156 // Line Constructor
1157 if(!bAvoidLineConstructor) {
1158 myLConstruct.Perform(L);
1159 //
1160 bDone=myLConstruct.IsDone();
1161 aNbParts=myLConstruct.NbParts();
1162 if (!bDone|| !aNbParts) {
1163 return;
1164 }
1165 }
1166 // Do the Curve
1167
1168
1169 typl=L->ArcType();
1170 switch (typl) {
1171 //########################################
1172 // Line, Parabola, Hyperbola
1173 //########################################
1174 case IntPatch_Lin:
1175 case IntPatch_Parabola:
1176 case IntPatch_Hyperbola: {
1177 if (typl == IntPatch_Lin) {
1178 newc =
1179 new Geom_Line (Handle(IntPatch_GLine)::DownCast(L)->Line());
1180 }
1181
1182 else if (typl == IntPatch_Parabola) {
1183 newc =
1184 new Geom_Parabola(Handle(IntPatch_GLine)::DownCast(L)->Parabola());
1185 }
1186
1187 else if (typl == IntPatch_Hyperbola) {
1188 newc =
1189 new Geom_Hyperbola (Handle(IntPatch_GLine)::DownCast(L)->Hyperbola());
1190 }
1191 //
1192 // myTolReached3d
1193 if (typl == IntPatch_Lin) {
1194 TolR3d (myFace1, myFace2, myTolReached3d);
1195 }
1196 //
1197 aNbParts=myLConstruct.NbParts();
1198 for (i=1; i<=aNbParts; i++) {
1199 myLConstruct.Part(i, fprm, lprm);
1200
1201 if (!Precision::IsNegativeInfinite(fprm) &&
1202 !Precision::IsPositiveInfinite(lprm)) {
1203 //
1204 IntTools_Curve aCurve;
1205 //
1206 Handle(Geom_TrimmedCurve) aCT3D=new Geom_TrimmedCurve(newc, fprm, lprm);
1207 aCurve.SetCurve(aCT3D);
1208 if (typl == IntPatch_Parabola) {
1209 Standard_Real aTolF1, aTolF2, aTolBase;
1210
1211 aTolF1 = BRep_Tool::Tolerance(myFace1);
1212 aTolF2 = BRep_Tool::Tolerance(myFace2);
1213 aTolBase=aTolF1+aTolF2;
1214 myTolReached3d=IntTools_Tools::CurveTolerance(aCT3D, aTolBase);
1215 }
1216 //
1217 aCurve.SetCurve(new Geom_TrimmedCurve(newc, fprm, lprm));
1218 if(myApprox1) {
1219 Handle (Geom2d_Curve) C2d;
1220 BuildPCurves(fprm, lprm, Tolpc, myHS1->ChangeSurface().Surface(), newc, C2d);
1221 if(Tolpc>myTolReached2d || myTolReached2d==0.) {
1222 myTolReached2d=Tolpc;
1223 }
1224 //
1225 aCurve.SetFirstCurve2d(new Geom2d_TrimmedCurve(C2d,fprm,lprm));
1226 }
1227 else {
1228 Handle(Geom2d_BSplineCurve) H1;
1229 //
1230 aCurve.SetFirstCurve2d(H1);
1231 }
1232
1233 if(myApprox2) {
1234 Handle (Geom2d_Curve) C2d;
1235 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1236 if(Tolpc>myTolReached2d || myTolReached2d==0.) {
1237 myTolReached2d=Tolpc;
1238 }
1239 //
1240 aCurve.SetSecondCurve2d(new Geom2d_TrimmedCurve(C2d,fprm,lprm));
1241 }
1242 else {
1243 Handle(Geom2d_BSplineCurve) H1;
1244 //
1245 aCurve.SetSecondCurve2d(H1);
1246 }
1247 mySeqOfCurve.Append(aCurve);
1248 } // end of if (!Precision::IsNegativeInfinite(fprm) && !Precision::IsPositiveInfinite(lprm))
1249
1250 else {
0fc4f2e2 1251 // on regarde si on garde
7fd59977 1252 //
1253 Standard_Boolean bFNIt, bLPIt;
1254 Standard_Real aTestPrm, dT=100.;
1255
1256 bFNIt=Precision::IsNegativeInfinite(fprm);
1257 bLPIt=Precision::IsPositiveInfinite(lprm);
1258
1259 aTestPrm=0.;
1260
1261 if (bFNIt && !bLPIt) {
1262 aTestPrm=lprm-dT;
1263 }
1264 else if (!bFNIt && bLPIt) {
1265 aTestPrm=fprm+dT;
1266 }
1267
1268 gp_Pnt ptref(newc->Value(aTestPrm));
1269 //
1270
1271 Standard_Real u1, v1, u2, v2, Tol;
1272
1273 Tol = Precision::Confusion();
1274 Parameters(myHS1, myHS2, ptref, u1, v1, u2, v2);
1275 ok = (dom1->Classify(gp_Pnt2d(u1, v1), Tol) != TopAbs_OUT);
1276 if(ok) {
1277 ok = (dom2->Classify(gp_Pnt2d(u2,v2),Tol) != TopAbs_OUT);
1278 }
1279 if (ok) {
1280 Handle(Geom2d_BSplineCurve) H1;
1281 mySeqOfCurve.Append(IntTools_Curve(newc, H1, H1));
1282 }
1283 }
1284 }// end of for (i=1; i<=myLConstruct.NbParts(); i++)
1285 }// case IntPatch_Lin: case IntPatch_Parabola: case IntPatch_Hyperbola:
1286 break;
1287
1288 //########################################
1289 // Circle and Ellipse
1290 //########################################
1291 case IntPatch_Circle:
1292 case IntPatch_Ellipse: {
1293
1294 if (typl == IntPatch_Circle) {
1295 newc = new Geom_Circle
1296 (Handle(IntPatch_GLine)::DownCast(L)->Circle());
1297 }
1298 else { //IntPatch_Ellipse
1299 newc = new Geom_Ellipse
1300 (Handle(IntPatch_GLine)::DownCast(L)->Ellipse());
1301 }
1302 //
1303 // myTolReached3d
1304 TolR3d (myFace1, myFace2, myTolReached3d);
1305 //
1306 aNbParts=myLConstruct.NbParts();
1307 //
1308 Standard_Real aPeriod, aNul;
1309 TColStd_SequenceOfReal aSeqFprm, aSeqLprm;
1310
1311 aNul=0.;
c6541a0c 1312 aPeriod=M_PI+M_PI;
7fd59977 1313
1314 for (i=1; i<=aNbParts; i++) {
1315 myLConstruct.Part(i, fprm, lprm);
1316
1317 if (fprm < aNul && lprm > aNul) {
1318 // interval that goes through 0. is divided on two intervals;
1319 while (fprm<aNul || fprm>aPeriod) fprm=fprm+aPeriod;
1320 while (lprm<aNul || lprm>aPeriod) lprm=lprm+aPeriod;
1321 //
1322 if((aPeriod - fprm) > Tolpc) {
1323 aSeqFprm.Append(fprm);
1324 aSeqLprm.Append(aPeriod);
1325 }
1326 else {
1327 gp_Pnt P1 = newc->Value(fprm);
1328 gp_Pnt P2 = newc->Value(aPeriod);
1329 Standard_Real aTolDist = BRep_Tool::Tolerance(myFace1) + BRep_Tool::Tolerance(myFace2);
1330 aTolDist = (myTolReached3d > aTolDist) ? myTolReached3d : aTolDist;
1331
1332 if(P1.Distance(P2) > aTolDist) {
1333 Standard_Real anewpar = fprm;
1334
4f189102 1335 if(ParameterOutOfBoundary(fprm, newc, myFace1, myFace2, lprm, Standard_False, anewpar, myContext)) {
7fd59977 1336 fprm = anewpar;
1337 }
1338 aSeqFprm.Append(fprm);
1339 aSeqLprm.Append(aPeriod);
1340 }
1341 }
1342
1343 //
1344 if((lprm - aNul) > Tolpc) {
1345 aSeqFprm.Append(aNul);
1346 aSeqLprm.Append(lprm);
1347 }
1348 else {
1349 gp_Pnt P1 = newc->Value(aNul);
1350 gp_Pnt P2 = newc->Value(lprm);
1351 Standard_Real aTolDist = BRep_Tool::Tolerance(myFace1) + BRep_Tool::Tolerance(myFace2);
1352 aTolDist = (myTolReached3d > aTolDist) ? myTolReached3d : aTolDist;
1353
1354 if(P1.Distance(P2) > aTolDist) {
1355 Standard_Real anewpar = lprm;
1356
4f189102 1357 if(ParameterOutOfBoundary(lprm, newc, myFace1, myFace2, fprm, Standard_True, anewpar, myContext)) {
7fd59977 1358 lprm = anewpar;
1359 }
1360 aSeqFprm.Append(aNul);
1361 aSeqLprm.Append(lprm);
1362 }
1363 }
1364 }
1365 else {
1366 // usual interval
1367 aSeqFprm.Append(fprm);
1368 aSeqLprm.Append(lprm);
1369 }
1370 }
1371
1372 //
1373 aNbParts=aSeqFprm.Length();
1374 for (i=1; i<=aNbParts; i++) {
1375 fprm=aSeqFprm(i);
1376 lprm=aSeqLprm(i);
1377 //
1378 Standard_Real aRealEpsilon=RealEpsilon();
c6541a0c 1379 if (Abs(fprm) > aRealEpsilon || Abs(lprm-2.*M_PI) > aRealEpsilon) {
7fd59977 1380 //==============================================
1381 ////
1382 IntTools_Curve aCurve;
1383 Handle(Geom_TrimmedCurve) aTC3D=new Geom_TrimmedCurve(newc,fprm,lprm);
1384 aCurve.SetCurve(aTC3D);
1385 fprm=aTC3D->FirstParameter();
1386 lprm=aTC3D->LastParameter ();
1387 ////
1388 if (typl == IntPatch_Circle || typl == IntPatch_Ellipse) {////
1389 if(myApprox1) {
1390 Handle (Geom2d_Curve) C2d;
1391 BuildPCurves(fprm,lprm,Tolpc,myHS1->ChangeSurface().Surface(),newc,C2d);
1392 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1393 myTolReached2d=Tolpc;
1394 }
1395 //
1396 aCurve.SetFirstCurve2d(C2d);
1397 }
1398 else { ////
1399 Handle(Geom2d_BSplineCurve) H1;
1400 aCurve.SetFirstCurve2d(H1);
1401 }
1402
1403
1404 if(myApprox2) {
1405 Handle (Geom2d_Curve) C2d;
1406 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1407 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1408 myTolReached2d=Tolpc;
1409 }
1410 //
1411 aCurve.SetSecondCurve2d(C2d);
1412 }
1413 else {
1414 Handle(Geom2d_BSplineCurve) H1;
1415 aCurve.SetSecondCurve2d(H1);
1416 }
1417 }
1418
1419 else {
1420 Handle(Geom2d_BSplineCurve) H1;
1421 aCurve.SetFirstCurve2d(H1);
1422 aCurve.SetSecondCurve2d(H1);
1423 }
1424 mySeqOfCurve.Append(aCurve);
1425 //==============================================
c6541a0c 1426 } //if (Abs(fprm) > RealEpsilon() || Abs(lprm-2.*M_PI) > RealEpsilon())
7fd59977 1427
1428 else {
1429 // on regarde si on garde
1430 //
1431 if (aNbParts==1) {
c6541a0c
D
1432// if (Abs(fprm) < RealEpsilon() && Abs(lprm-2.*M_PI) < RealEpsilon()) {
1433 if (Abs(fprm) <= aRealEpsilon && Abs(lprm-2.*M_PI) <= aRealEpsilon) {
7fd59977 1434 IntTools_Curve aCurve;
1435 Handle(Geom_TrimmedCurve) aTC3D=new Geom_TrimmedCurve(newc,fprm,lprm);
1436 aCurve.SetCurve(aTC3D);
1437 fprm=aTC3D->FirstParameter();
1438 lprm=aTC3D->LastParameter ();
1439
1440 if(myApprox1) {
1441 Handle (Geom2d_Curve) C2d;
1442 BuildPCurves(fprm,lprm,Tolpc,myHS1->ChangeSurface().Surface(),newc,C2d);
1443 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1444 myTolReached2d=Tolpc;
1445 }
1446 //
1447 aCurve.SetFirstCurve2d(C2d);
1448 }
1449 else { ////
1450 Handle(Geom2d_BSplineCurve) H1;
1451 aCurve.SetFirstCurve2d(H1);
1452 }
1453
1454 if(myApprox2) {
1455 Handle (Geom2d_Curve) C2d;
1456 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1457 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1458 myTolReached2d=Tolpc;
1459 }
1460 //
1461 aCurve.SetSecondCurve2d(C2d);
1462 }
1463 else {
1464 Handle(Geom2d_BSplineCurve) H1;
1465 aCurve.SetSecondCurve2d(H1);
1466 }
1467 mySeqOfCurve.Append(aCurve);
1468 break;
1469 }
1470 }
1471 //
1472 Standard_Real aTwoPIdiv17, u1, v1, u2, v2, Tol;
1473
c6541a0c 1474 aTwoPIdiv17=2.*M_PI/17.;
7fd59977 1475
1476 for (j=0; j<=17; j++) {
1477 gp_Pnt ptref (newc->Value (j*aTwoPIdiv17));
1478 Tol = Precision::Confusion();
1479
1480 Parameters(myHS1, myHS2, ptref, u1, v1, u2, v2);
1481 ok = (dom1->Classify(gp_Pnt2d(u1,v1),Tol) != TopAbs_OUT);
1482 if(ok) {
1483 ok = (dom2->Classify(gp_Pnt2d(u2,v2),Tol) != TopAbs_OUT);
1484 }
1485 if (ok) {
1486 IntTools_Curve aCurve;
1487 aCurve.SetCurve(newc);
1488 //==============================================
1489 if (typl == IntPatch_Circle || typl == IntPatch_Ellipse) {
1490
1491 if(myApprox1) {
1492 Handle (Geom2d_Curve) C2d;
1493 BuildPCurves(fprm, lprm, Tolpc, myHS1->ChangeSurface().Surface(), newc, C2d);
1494 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1495 myTolReached2d=Tolpc;
1496 }
1497 //
1498 aCurve.SetFirstCurve2d(C2d);
1499 }
1500 else {
1501 Handle(Geom2d_BSplineCurve) H1;
1502 aCurve.SetFirstCurve2d(H1);
1503 }
1504
1505 if(myApprox2) {
1506 Handle (Geom2d_Curve) C2d;
1507 BuildPCurves(fprm, lprm, Tolpc,myHS2->ChangeSurface().Surface(), newc, C2d);
1508 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1509 myTolReached2d=Tolpc;
1510 }
1511 //
1512 aCurve.SetSecondCurve2d(C2d);
1513 }
1514
1515 else {
1516 Handle(Geom2d_BSplineCurve) H1;
1517 aCurve.SetSecondCurve2d(H1);
1518 }
1519 }// end of if (typl == IntPatch_Circle || typl == IntPatch_Ellipse)
1520
1521 else {
1522 Handle(Geom2d_BSplineCurve) H1;
1523 //
1524 aCurve.SetFirstCurve2d(H1);
1525 aCurve.SetSecondCurve2d(H1);
1526 }
1527 //==============================================
1528 //
1529 mySeqOfCurve.Append(aCurve);
1530 break;
1531
1532 }// end of if (ok) {
1533 }// end of for (Standard_Integer j=0; j<=17; j++)
0fc4f2e2 1534 }// end of else { on regarde si on garde
7fd59977 1535 }// for (i=1; i<=myLConstruct.NbParts(); i++)
1536 }// IntPatch_Circle: IntPatch_Ellipse:
1537 break;
1538
1539 case IntPatch_Analytic: {
1540 IntSurf_Quadric quad1,quad2;
1541 GeomAbs_SurfaceType typs = myHS1->Surface().GetType();
1542
1543 switch (typs) {
1544 case GeomAbs_Plane:
1545 quad1.SetValue(myHS1->Surface().Plane());
1546 break;
1547 case GeomAbs_Cylinder:
1548 quad1.SetValue(myHS1->Surface().Cylinder());
1549 break;
1550 case GeomAbs_Cone:
1551 quad1.SetValue(myHS1->Surface().Cone());
1552 break;
1553 case GeomAbs_Sphere:
1554 quad1.SetValue(myHS1->Surface().Sphere());
1555 break;
1556 default:
1557 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve 1");
1558 }
1559
1560 typs = myHS2->Surface().GetType();
1561
1562 switch (typs) {
1563 case GeomAbs_Plane:
1564 quad2.SetValue(myHS2->Surface().Plane());
1565 break;
1566 case GeomAbs_Cylinder:
1567 quad2.SetValue(myHS2->Surface().Cylinder());
1568 break;
1569 case GeomAbs_Cone:
1570 quad2.SetValue(myHS2->Surface().Cone());
1571 break;
1572 case GeomAbs_Sphere:
1573 quad2.SetValue(myHS2->Surface().Sphere());
1574 break;
1575 default:
1576 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve 2");
1577 }
1578 //
1579 //=========
1580 IntPatch_ALineToWLine convert (quad1, quad2);
1581
1582 if (!myApprox) {
1583 aNbParts=myLConstruct.NbParts();
1584 for (i=1; i<=aNbParts; i++) {
1585 myLConstruct.Part(i, fprm, lprm);
1586 Handle(IntPatch_WLine) WL =
1587 convert.MakeWLine(Handle(IntPatch_ALine)::DownCast(L), fprm, lprm);
1588 //
1589 Handle(Geom2d_BSplineCurve) H1;
1590 Handle(Geom2d_BSplineCurve) H2;
1591
1592 if(myApprox1) {
1593 H1 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_True);
1594 }
1595
1596 if(myApprox2) {
1597 H2 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_False);
1598 }
1599 //
1600 mySeqOfCurve.Append(IntTools_Curve(MakeBSpline(WL,1,WL->NbPnts()), H1, H2));
1601 }
1602 } // if (!myApprox)
1603
1604 else { // myApprox=TRUE
1605 GeomInt_WLApprox theapp3d;
1606 //
1607 Standard_Real tol2d = myTolApprox;
1608 //
1609 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_True);
1610
1611 aNbParts=myLConstruct.NbParts();
1612 for (i=1; i<=aNbParts; i++) {
1613 myLConstruct.Part(i, fprm, lprm);
1614 Handle(IntPatch_WLine) WL =
1615 convert.MakeWLine(Handle(IntPatch_ALine):: DownCast(L),fprm,lprm);
1616
1617 theapp3d.Perform(myHS1,myHS2,WL,Standard_True,myApprox1,myApprox2, 1, WL->NbPnts());
1618
1619 if (!theapp3d.IsDone()) {
1620 //
1621 Handle(Geom2d_BSplineCurve) H1;
1622 Handle(Geom2d_BSplineCurve) H2;
1623
1624 if(myApprox1) {
1625 H1 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_True);
1626 }
1627
1628 if(myApprox2) {
1629 H2 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_False);
1630 }
1631 //
1632 mySeqOfCurve.Append(IntTools_Curve(MakeBSpline(WL,1,WL->NbPnts()), H1, H2));
1633 }
1634
1635 else {
1636 if(myApprox1 || myApprox2) {
1637 if( theapp3d.TolReached2d()>myTolReached2d || myTolReached2d==0) {
1638 myTolReached2d = theapp3d.TolReached2d();
1639 }
1640 }
1641
1642 if( theapp3d.TolReached3d()>myTolReached3d || myTolReached3d==0) {
1643 myTolReached3d = theapp3d.TolReached3d();
1644 }
1645
1646 Standard_Integer aNbMultiCurves, nbpoles;
1647 aNbMultiCurves=theapp3d.NbMultiCurves();
1648 for (j=1; j<=aNbMultiCurves; j++) {
1649 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
1650 nbpoles = mbspc.NbPoles();
1651
1652 TColgp_Array1OfPnt tpoles(1, nbpoles);
1653 mbspc.Curve(1, tpoles);
1654 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
1655 mbspc.Knots(),
1656 mbspc.Multiplicities(),
1657 mbspc.Degree());
1658
1659 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
1660 Check.FixTangent(Standard_True,Standard_True);
1661 //
1662 IntTools_Curve aCurve;
1663 aCurve.SetCurve(BS);
1664
1665 if(myApprox1) {
1666 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
1667 mbspc.Curve(2,tpoles2d);
1668 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
1669 mbspc.Knots(),
1670 mbspc.Multiplicities(),
1671 mbspc.Degree());
1672
1673 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1674 newCheck.FixTangent(Standard_True,Standard_True);
1675 //
1676 aCurve.SetFirstCurve2d(BS2);
1677 }
1678 else {
1679 Handle(Geom2d_BSplineCurve) H1;
1680 aCurve.SetFirstCurve2d(H1);
1681 }
1682
1683 if(myApprox2) {
1684 TColgp_Array1OfPnt2d tpoles2d(1, nbpoles);
1685 Standard_Integer TwoOrThree;
1686 TwoOrThree=myApprox1 ? 3 : 2;
1687 mbspc.Curve(TwoOrThree, tpoles2d);
1688 Handle(Geom2d_BSplineCurve) BS2 =new Geom2d_BSplineCurve(tpoles2d,
1689 mbspc.Knots(),
1690 mbspc.Multiplicities(),
1691 mbspc.Degree());
1692
1693 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1694 newCheck.FixTangent(Standard_True,Standard_True);
1695 //
1696 aCurve.SetSecondCurve2d(BS2);
1697 }
1698 else {
1699 Handle(Geom2d_BSplineCurve) H2;
1700 aCurve.SetSecondCurve2d(H2);
1701 }
1702 //
1703 mySeqOfCurve.Append(aCurve);
1704
1705 }// for (j=1; j<=aNbMultiCurves; j++) {
1706 }// else from if (!theapp3d.IsDone())
1707 }// for (i=1; i<=aNbParts; i++) {
1708 }// else { // myApprox=TRUE
1709 }// case IntPatch_Analytic:
1710 break;
1711
1712 case IntPatch_Walking:{
1713 Handle(IntPatch_WLine) WL =
1714 Handle(IntPatch_WLine)::DownCast(L);
1715 //
1716 Standard_Integer ifprm, ilprm;
1717 //
1718 if (!myApprox) {
1719 aNbParts = 1;
1720 if(!bAvoidLineConstructor){
1721 aNbParts=myLConstruct.NbParts();
1722 }
1723 for (i=1; i<=aNbParts; ++i) {
1724 Handle(Geom2d_BSplineCurve) H1, H2;
1725 Handle(Geom_Curve) aBSp;
1726 //
1727 if(bAvoidLineConstructor) {
1728 ifprm = 1;
1729 ilprm = WL->NbPnts();
1730 }
1731 else {
1732 myLConstruct.Part(i, fprm, lprm);
1733 ifprm=(Standard_Integer)fprm;
1734 ilprm=(Standard_Integer)lprm;
1735 }
1736 //
1737 if(myApprox1) {
1738 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
1739 }
1740 //
1741 if(myApprox2) {
1742 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
1743 }
1744 //
1745 aBSp=MakeBSpline(WL, ifprm, ilprm);
1746 IntTools_Curve aIC(aBSp, H1, H2);
1747 mySeqOfCurve.Append(aIC);
1748 }// for (i=1; i<=aNbParts; ++i) {
1749 }// if (!myApprox) {
1750 //
1751 else { // X
1752 Standard_Boolean bIsDecomposited;
1753 Standard_Integer nbiter, aNbSeqOfL;
1754 Standard_Real tol2d;
1755 IntPatch_SequenceOfLine aSeqOfL;
1756 GeomInt_WLApprox theapp3d;
1757 Approx_ParametrizationType aParType = Approx_ChordLength;
1758 //
1759 Standard_Boolean anApprox1 = myApprox1;
1760 Standard_Boolean anApprox2 = myApprox2;
1761
1762 tol2d = myTolApprox;
1763
1764 GeomAbs_SurfaceType typs1, typs2;
1765 typs1 = myHS1->Surface().GetType();
1766 typs2 = myHS2->Surface().GetType();
1767 Standard_Boolean anWithPC = Standard_True;
1768
1769 if(typs1 == GeomAbs_Cylinder && typs2 == GeomAbs_Sphere) {
1770 anWithPC =
1771 ApproxWithPCurves(myHS1->Surface().Cylinder(), myHS2->Surface().Sphere());
1772 }
1773 else if (typs1 == GeomAbs_Sphere && typs2 == GeomAbs_Cylinder) {
1774 anWithPC =
1775 ApproxWithPCurves(myHS2->Surface().Cylinder(), myHS1->Surface().Sphere());
1776 }
1777 if(!anWithPC) {
1778 //aParType = Approx_Centripetal;
1779 myTolApprox = 1.e-5;
1780 anApprox1 = Standard_False;
1781 anApprox2 = Standard_False;
1782 //
1783 tol2d = myTolApprox;
1784 }
1785
1786 if(myHS1 == myHS2) {
1787 //
1788 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1789 rejectSurface = Standard_True;
1790 }
1791 else {
1792 if(reApprox && !rejectSurface)
1793 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1794 else {
4f189102
P
1795 Standard_Integer iDegMax, iDegMin, iNbIter;
1796 //
4f189102
P
1797 ApproxParameters(myHS1, myHS2, iDegMin, iDegMax, iNbIter);
1798 theapp3d.SetParameters(myTolApprox, tol2d, iDegMin, iDegMax, iNbIter, Standard_True, aParType);
7fd59977 1799 //
7fd59977 1800 }
1801 }
1802 //
1803 Standard_Real aReachedTol = Precision::Confusion();
1804 bIsDecomposited=DecompositionOfWLine(WL,
1805 myHS1,
1806 myHS2,
1807 myFace1,
1808 myFace2,
1809 myLConstruct,
1810 bAvoidLineConstructor,
1811 aSeqOfL,
4f189102
P
1812 aReachedTol,
1813 myContext);
7fd59977 1814 if ( bIsDecomposited && ( myTolReached3d < aReachedTol ) )
1815 myTolReached3d = aReachedTol;
1816
1817 //
1818 aNbSeqOfL=aSeqOfL.Length();
1819 //
1820 if (bIsDecomposited) {
1821 nbiter=aNbSeqOfL;
1822 }
1823 else {
1824 nbiter=1;
1825 aNbParts=1;
1826 if (!bAvoidLineConstructor) {
1827 aNbParts=myLConstruct.NbParts();
1828 nbiter=aNbParts;
1829 }
1830 }
1831 //
1832 // nbiter=(bIsDecomposited) ? aSeqOfL.Length() :
1833 // ((bAvoidLineConstructor) ? 1 :aNbParts);
1834 //
1835 for(i = 1; i <= nbiter; ++i) {
1836 if(bIsDecomposited) {
1837 WL = Handle(IntPatch_WLine)::DownCast(aSeqOfL.Value(i));
1838 ifprm = 1;
1839 ilprm = WL->NbPnts();
1840 }
1841 else {
1842 if(bAvoidLineConstructor) {
1843 ifprm = 1;
1844 ilprm = WL->NbPnts();
1845 }
1846 else {
1847 myLConstruct.Part(i, fprm, lprm);
1848 ifprm = (Standard_Integer)fprm;
1849 ilprm = (Standard_Integer)lprm;
1850 }
1851 }
0fc4f2e2
P
1852 //-- lbr :
1853 //-- Si une des surfaces est un plan , on approxime en 2d
1854 //-- sur cette surface et on remonte les points 2d en 3d.
7fd59977 1855 if(typs1 == GeomAbs_Plane) {
1856 theapp3d.Perform(myHS1, myHS2, WL, Standard_False,Standard_True, myApprox2,ifprm,ilprm);
1857 }
1858 else if(typs2 == GeomAbs_Plane) {
1859 theapp3d.Perform(myHS1,myHS2,WL,Standard_False,myApprox1,Standard_True,ifprm,ilprm);
1860 }
1861 else {
1862 //
1863 if (myHS1 != myHS2){
1864 if ((typs1==GeomAbs_BezierSurface || typs1==GeomAbs_BSplineSurface) &&
1865 (typs2==GeomAbs_BezierSurface || typs2==GeomAbs_BSplineSurface)) {
1866
1867 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_True, aParType);
1868
1869 Standard_Boolean bUseSurfaces;
1870 bUseSurfaces=NotUseSurfacesForApprox(myFace1, myFace2, WL, ifprm, ilprm);
1871 if (bUseSurfaces) {
1872 // ######
1873 rejectSurface = Standard_True;
1874 // ######
1875 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1876 }
1877 }
1878 }
1879 //
1880 theapp3d.Perform(myHS1,myHS2,WL,Standard_True,anApprox1,anApprox2,ifprm,ilprm);
1881 }
1882
1883 if (!theapp3d.IsDone()) {
1884 //
1885 Handle(Geom2d_BSplineCurve) H1;
1886 //
1887 Handle(Geom_Curve) aBSp=MakeBSpline(WL,ifprm, ilprm);
1888 Handle(Geom2d_BSplineCurve) H2;
1889
1890 if(myApprox1) {
1891 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
1892 }
1893
1894 if(myApprox2) {
1895 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
1896 }
1897 //
1898 IntTools_Curve aIC(aBSp, H1, H2);
1899 mySeqOfCurve.Append(aIC);
1900 }
1901
1902 else {
1903 if(myApprox1 || myApprox2 || (typs1==GeomAbs_Plane || typs2==GeomAbs_Plane)) {
1904 if( theapp3d.TolReached2d()>myTolReached2d || myTolReached2d==0.) {
1905 myTolReached2d = theapp3d.TolReached2d();
1906 }
1907 }
1908 if(typs1==GeomAbs_Plane || typs2==GeomAbs_Plane) {
1909 myTolReached3d = myTolReached2d;
1910 //
1911 if (typs1==GeomAbs_Torus || typs2==GeomAbs_Torus) {
1912 if (myTolReached3d<1.e-6) {
1913 myTolReached3d = theapp3d.TolReached3d();
1914 myTolReached3d=1.e-6;
1915 }
1916 }
1917 //
1918 }
1919 else if( theapp3d.TolReached3d()>myTolReached3d || myTolReached3d==0.) {
1920 myTolReached3d = theapp3d.TolReached3d();
1921 }
1922
1923 Standard_Integer aNbMultiCurves, nbpoles;
1924 aNbMultiCurves=theapp3d.NbMultiCurves();
1925 for (j=1; j<=aNbMultiCurves; j++) {
1926 if(typs1 == GeomAbs_Plane) {
1927 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
1928 nbpoles = mbspc.NbPoles();
1929
1930 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
1931 TColgp_Array1OfPnt tpoles(1,nbpoles);
1932
1933 mbspc.Curve(1,tpoles2d);
1934 const gp_Pln& Pln = myHS1->Surface().Plane();
1935 //
1936 Standard_Integer ik;
1937 for(ik = 1; ik<= nbpoles; ik++) {
1938 tpoles.SetValue(ik,
1939 ElSLib::Value(tpoles2d.Value(ik).X(),
1940 tpoles2d.Value(ik).Y(),
1941 Pln));
1942 }
1943 //
1944 Handle(Geom_BSplineCurve) BS =
1945 new Geom_BSplineCurve(tpoles,
1946 mbspc.Knots(),
1947 mbspc.Multiplicities(),
1948 mbspc.Degree());
1949 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
1950 Check.FixTangent(Standard_True, Standard_True);
1951 //
1952 IntTools_Curve aCurve;
1953 aCurve.SetCurve(BS);
1954
1955 if(myApprox1) {
1956 Handle(Geom2d_BSplineCurve) BS1 =
1957 new Geom2d_BSplineCurve(tpoles2d,
1958 mbspc.Knots(),
1959 mbspc.Multiplicities(),
1960 mbspc.Degree());
1961 GeomLib_Check2dBSplineCurve Check1(BS1,TOLCHECK,TOLANGCHECK);
1962 Check1.FixTangent(Standard_True,Standard_True);
1963 //
1964 // ############################################
1965 if(!rejectSurface && !reApprox) {
1966 Standard_Boolean isValid = IsCurveValid(BS1);
1967 if(!isValid) {
1968 reApprox = Standard_True;
1969 goto reapprox;
1970 }
1971 }
1972 // ############################################
1973 aCurve.SetFirstCurve2d(BS1);
1974 }
1975 else {
1976 Handle(Geom2d_BSplineCurve) H1;
1977 aCurve.SetFirstCurve2d(H1);
1978 }
1979
1980 if(myApprox2) {
1981 mbspc.Curve(2, tpoles2d);
1982
1983 Handle(Geom2d_BSplineCurve) BS2 = new Geom2d_BSplineCurve(tpoles2d,
1984 mbspc.Knots(),
1985 mbspc.Multiplicities(),
1986 mbspc.Degree());
1987 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1988 newCheck.FixTangent(Standard_True,Standard_True);
1989
1990 // ###########################################
1991 if(!rejectSurface && !reApprox) {
1992 Standard_Boolean isValid = IsCurveValid(BS2);
1993 if(!isValid) {
1994 reApprox = Standard_True;
1995 goto reapprox;
1996 }
1997 }
1998 // ###########################################
1999 //
2000 aCurve.SetSecondCurve2d(BS2);
2001 }
2002 else {
2003 Handle(Geom2d_BSplineCurve) H2;
2004 //
2005 aCurve.SetSecondCurve2d(H2);
2006 }
2007 //
2008 mySeqOfCurve.Append(aCurve);
2009 }
2010
2011 else if(typs2 == GeomAbs_Plane) {
2012 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2013 nbpoles = mbspc.NbPoles();
2014
2015 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2016 TColgp_Array1OfPnt tpoles(1,nbpoles);
2017 mbspc.Curve((myApprox1==Standard_True)? 2 : 1,tpoles2d);
2018 const gp_Pln& Pln = myHS2->Surface().Plane();
2019 //
2020 Standard_Integer ik;
2021 for(ik = 1; ik<= nbpoles; ik++) {
2022 tpoles.SetValue(ik,
2023 ElSLib::Value(tpoles2d.Value(ik).X(),
2024 tpoles2d.Value(ik).Y(),
2025 Pln));
2026
2027 }
2028 //
2029 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
2030 mbspc.Knots(),
2031 mbspc.Multiplicities(),
2032 mbspc.Degree());
2033 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2034 Check.FixTangent(Standard_True,Standard_True);
2035 //
2036 IntTools_Curve aCurve;
2037 aCurve.SetCurve(BS);
2038
2039 if(myApprox2) {
2040 Handle(Geom2d_BSplineCurve) BS1=new Geom2d_BSplineCurve(tpoles2d,
2041 mbspc.Knots(),
2042 mbspc.Multiplicities(),
2043 mbspc.Degree());
2044 GeomLib_Check2dBSplineCurve Check1(BS1,TOLCHECK,TOLANGCHECK);
2045 Check1.FixTangent(Standard_True,Standard_True);
2046 //
2047 // ###########################################
2048 if(!rejectSurface && !reApprox) {
2049 Standard_Boolean isValid = IsCurveValid(BS1);
2050 if(!isValid) {
2051 reApprox = Standard_True;
2052 goto reapprox;
2053 }
2054 }
989341c5 2055 // ###########################################
2056 bPCurvesOk = CheckPCurve(BS1, myFace2);
7fd59977 2057 aCurve.SetSecondCurve2d(BS1);
2058 }
2059 else {
2060 Handle(Geom2d_BSplineCurve) H2;
2061 aCurve.SetSecondCurve2d(H2);
2062 }
2063
2064 if(myApprox1) {
2065 mbspc.Curve(1,tpoles2d);
2066 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
2067 mbspc.Knots(),
2068 mbspc.Multiplicities(),
2069 mbspc.Degree());
2070 GeomLib_Check2dBSplineCurve Check2(BS2,TOLCHECK,TOLANGCHECK);
2071 Check2.FixTangent(Standard_True,Standard_True);
2072 //
2073 // ###########################################
2074 if(!rejectSurface && !reApprox) {
2075 Standard_Boolean isValid = IsCurveValid(BS2);
2076 if(!isValid) {
2077 reApprox = Standard_True;
2078 goto reapprox;
2079 }
2080 }
989341c5 2081 // ###########################################
2082 bPCurvesOk = bPCurvesOk && CheckPCurve(BS2, myFace1);
7fd59977 2083 aCurve.SetFirstCurve2d(BS2);
2084 }
2085 else {
2086 Handle(Geom2d_BSplineCurve) H1;
2087 //
2088 aCurve.SetFirstCurve2d(H1);
2089 }
2090 //
989341c5 2091 //if points of the pcurves are out of the faces bounds
2092 //create 3d and 2d curves without approximation
2093 if (!bPCurvesOk) {
2094 Handle(Geom2d_BSplineCurve) H1, H2;
2095 bPCurvesOk = Standard_True;
2096 //
2097 Handle(Geom_Curve) aBSp=MakeBSpline(WL,ifprm, ilprm);
2098
2099 if(myApprox1) {
2100 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
2101 bPCurvesOk = CheckPCurve(H1, myFace1);
2102 }
2103
2104 if(myApprox2) {
2105 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
2106 bPCurvesOk = bPCurvesOk && CheckPCurve(H2, myFace2);
2107 }
2108 //
2109 //if pcurves created without approximation are out of the
2110 //faces bounds, use approximated 3d and 2d curves
2111 if (bPCurvesOk) {
2112 IntTools_Curve aIC(aBSp, H1, H2);
2113 mySeqOfCurve.Append(aIC);
2114 } else {
2115 mySeqOfCurve.Append(aCurve);
2116 }
2117 } else {
2118 mySeqOfCurve.Append(aCurve);
2119 }
7fd59977 2120 }
2121 else {
2122 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2123 nbpoles = mbspc.NbPoles();
2124 TColgp_Array1OfPnt tpoles(1,nbpoles);
2125 mbspc.Curve(1,tpoles);
2126 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
2127 mbspc.Knots(),
2128 mbspc.Multiplicities(),
2129 mbspc.Degree());
2130 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2131 Check.FixTangent(Standard_True,Standard_True);
2132 //
2133 IntTools_Curve aCurve;
2134 aCurve.SetCurve(BS);
2135
2136 if(myApprox1) {
2137 if(anApprox1) {
2138 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2139 mbspc.Curve(2,tpoles2d);
2140 Handle(Geom2d_BSplineCurve) BS1=new Geom2d_BSplineCurve(tpoles2d,
2141 mbspc.Knots(),
2142 mbspc.Multiplicities(),
2143 mbspc.Degree());
2144 GeomLib_Check2dBSplineCurve newCheck(BS1,TOLCHECK,TOLANGCHECK);
2145 newCheck.FixTangent(Standard_True,Standard_True);
2146 //
2147 aCurve.SetFirstCurve2d(BS1);
2148 }
2149 else {
2150 Handle(Geom2d_BSplineCurve) BS1;
2151 fprm = BS->FirstParameter();
2152 lprm = BS->LastParameter();
2153
2154 Handle(Geom2d_Curve) C2d;
2155 Standard_Real aTol = myTolApprox;
2156 BuildPCurves(fprm, lprm, aTol, myHS1->ChangeSurface().Surface(), BS, C2d);
2157 BS1 = Handle(Geom2d_BSplineCurve)::DownCast(C2d);
2158 aCurve.SetFirstCurve2d(BS1);
2159 }
2160
2161 }
2162 else {
2163 Handle(Geom2d_BSplineCurve) H1;
2164 //
2165 aCurve.SetFirstCurve2d(H1);
2166 }
2167 if(myApprox2) {
2168 if(anApprox2) {
2169 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2170 mbspc.Curve((myApprox1==Standard_True)? 3 : 2,tpoles2d);
2171 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
2172 mbspc.Knots(),
2173 mbspc.Multiplicities(),
2174 mbspc.Degree());
2175 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
2176 newCheck.FixTangent(Standard_True,Standard_True);
2177 //
2178 aCurve.SetSecondCurve2d(BS2);
2179 }
2180 else {
2181 Handle(Geom2d_BSplineCurve) BS2;
2182 fprm = BS->FirstParameter();
2183 lprm = BS->LastParameter();
2184
2185 Handle(Geom2d_Curve) C2d;
2186 Standard_Real aTol = myTolApprox;
2187 BuildPCurves(fprm, lprm, aTol, myHS2->ChangeSurface().Surface(), BS, C2d);
2188 BS2 = Handle(Geom2d_BSplineCurve)::DownCast(C2d);
2189 aCurve.SetSecondCurve2d(BS2);
2190 }
2191
2192 }
2193 else {
2194 Handle(Geom2d_BSplineCurve) H2;
2195 //
2196 aCurve.SetSecondCurve2d(H2);
2197 }
2198 //
2199 mySeqOfCurve.Append(aCurve);
2200 }
2201 }
2202 }
2203 }
2204 }// else { // X
2205 }// case IntPatch_Walking:{
2206 break;
2207
2208 case IntPatch_Restriction:
2209 break;
2210
2211 }
2212}
2213
2214//=======================================================================
2215//function : BuildPCurves
2216//purpose :
2217//=======================================================================
2218 void BuildPCurves (Standard_Real f,
2219 Standard_Real l,
2220 Standard_Real& Tol,
2221 const Handle (Geom_Surface)& S,
2222 const Handle (Geom_Curve)& C,
2223 Handle (Geom2d_Curve)& C2d)
2224{
2225
2226 Standard_Real umin,umax,vmin,vmax;
2227 //
2228
2229 if (C2d.IsNull()) {
2230
2231 // in class ProjLib_Function the range of parameters is shrank by 1.e-09
2232 if((l - f) > 2.e-09) {
2233 C2d = GeomProjLib::Curve2d(C,f,l,S,Tol);
2234 //
2235 if (C2d.IsNull()) {
2236 // proj. a circle that goes through the pole on a sphere to the sphere
2237 Tol=Tol+1.e-7;
2238 C2d = GeomProjLib::Curve2d(C,f,l,S,Tol);
2239 }
2240 }
2241 else {
2242 if((l - f) > Epsilon(Abs(f))) {
2243 GeomAPI_ProjectPointOnSurf aProjector1, aProjector2;
2244 gp_Pnt P1 = C->Value(f);
2245 gp_Pnt P2 = C->Value(l);
2246 aProjector1.Init(P1, S);
2247 aProjector2.Init(P2, S);
2248
2249 if(aProjector1.IsDone() && aProjector2.IsDone()) {
2250 Standard_Real U=0., V=0.;
2251 aProjector1.LowerDistanceParameters(U, V);
2252 gp_Pnt2d p1(U, V);
2253
2254 aProjector2.LowerDistanceParameters(U, V);
2255 gp_Pnt2d p2(U, V);
2256
2257 if(p1.Distance(p2) > gp::Resolution()) {
2258 TColgp_Array1OfPnt2d poles(1,2);
2259 TColStd_Array1OfReal knots(1,2);
2260 TColStd_Array1OfInteger mults(1,2);
2261 poles(1) = p1;
2262 poles(2) = p2;
2263 knots(1) = f;
2264 knots(2) = l;
2265 mults(1) = mults(2) = 2;
2266
2267 C2d = new Geom2d_BSplineCurve(poles,knots,mults,1);
2268
2269 // compute reached tolerance.begin
2270 gp_Pnt PMid = C->Value((f + l) * 0.5);
2271 aProjector1.Perform(PMid);
2272
2273 if(aProjector1.IsDone()) {
2274 aProjector1.LowerDistanceParameters(U, V);
2275 gp_Pnt2d pmidproj(U, V);
2276 gp_Pnt2d pmidcurve2d = C2d->Value((f + l) * 0.5);
2277 Standard_Real adist = pmidcurve2d.Distance(pmidproj);
2278 Tol = (adist > Tol) ? adist : Tol;
2279 }
2280 // compute reached tolerance.end
2281 }
2282 }
2283 }
2284 }
2285 //
2286 S->Bounds(umin, umax, vmin, vmax);
2287
2288 if (S->IsUPeriodic() && !C2d.IsNull()) {
0fc4f2e2 2289 // Recadre dans le domaine UV de la face
7fd59977 2290 Standard_Real period, U0, du, aEps;
2291
2292 du =0.0;
2293 aEps=Precision::PConfusion();
2294 period = S->UPeriod();
2295 gp_Pnt2d Pf = C2d->Value(f);
2296 U0=Pf.X();
2297 //
2298 gp_Pnt2d Pl = C2d->Value(l);
2299
2300 U0 = Min(Pl.X(), U0);
2301// while(U0-umin<aEps) {
2302 while(U0-umin<-aEps) {
2303 U0+=period;
2304 du+=period;
2305 }
2306 //
2307 while(U0-umax>aEps) {
2308 U0-=period;
2309 du-=period;
2310 }
2311 if (du != 0) {
2312 gp_Vec2d T1(du,0.);
2313 C2d->Translate(T1);
2314 }
2315 }
2316 }
7fd59977 2317}
2318
2319//=======================================================================
2320//function : Parameters
2321//purpose :
2322//=======================================================================
2323 void Parameters(const Handle(GeomAdaptor_HSurface)& HS1,
2324 const Handle(GeomAdaptor_HSurface)& HS2,
2325 const gp_Pnt& Ptref,
2326 Standard_Real& U1,
2327 Standard_Real& V1,
2328 Standard_Real& U2,
2329 Standard_Real& V2)
2330{
2331
2332 IntSurf_Quadric quad1,quad2;
2333 GeomAbs_SurfaceType typs = HS1->Surface().GetType();
2334
2335 switch (typs) {
2336 case GeomAbs_Plane:
2337 quad1.SetValue(HS1->Surface().Plane());
2338 break;
2339 case GeomAbs_Cylinder:
2340 quad1.SetValue(HS1->Surface().Cylinder());
2341 break;
2342 case GeomAbs_Cone:
2343 quad1.SetValue(HS1->Surface().Cone());
2344 break;
2345 case GeomAbs_Sphere:
2346 quad1.SetValue(HS1->Surface().Sphere());
2347 break;
2348 default:
2349 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve");
2350 }
2351
2352 typs = HS2->Surface().GetType();
2353 switch (typs) {
2354 case GeomAbs_Plane:
2355 quad2.SetValue(HS2->Surface().Plane());
2356 break;
2357 case GeomAbs_Cylinder:
2358 quad2.SetValue(HS2->Surface().Cylinder());
2359 break;
2360 case GeomAbs_Cone:
2361 quad2.SetValue(HS2->Surface().Cone());
2362 break;
2363 case GeomAbs_Sphere:
2364 quad2.SetValue(HS2->Surface().Sphere());
2365 break;
2366 default:
2367 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve");
2368 }
2369
2370 quad1.Parameters(Ptref,U1,V1);
2371 quad2.Parameters(Ptref,U2,V2);
2372}
2373
2374//=======================================================================
2375//function : MakeBSpline
2376//purpose :
2377//=======================================================================
2378Handle(Geom_Curve) MakeBSpline (const Handle(IntPatch_WLine)& WL,
2379 const Standard_Integer ideb,
2380 const Standard_Integer ifin)
2381{
2382 Standard_Integer i,nbpnt = ifin-ideb+1;
2383 TColgp_Array1OfPnt poles(1,nbpnt);
2384 TColStd_Array1OfReal knots(1,nbpnt);
2385 TColStd_Array1OfInteger mults(1,nbpnt);
2386 Standard_Integer ipidebm1;
2387 for(i=1,ipidebm1=i+ideb-1; i<=nbpnt;ipidebm1++, i++) {
2388 poles(i) = WL->Point(ipidebm1).Value();
2389 mults(i) = 1;
2390 knots(i) = i-1;
2391 }
2392 mults(1) = mults(nbpnt) = 2;
2393 return
2394 new Geom_BSplineCurve(poles,knots,mults,1);
2395}
2396//
2397
2398//=======================================================================
2399//function : MakeBSpline2d
2400//purpose :
2401//=======================================================================
2402Handle(Geom2d_BSplineCurve) MakeBSpline2d(const Handle(IntPatch_WLine)& theWLine,
2403 const Standard_Integer ideb,
2404 const Standard_Integer ifin,
2405 const Standard_Boolean onFirst)
2406{
2407 Standard_Integer i, nbpnt = ifin-ideb+1;
2408 TColgp_Array1OfPnt2d poles(1,nbpnt);
2409 TColStd_Array1OfReal knots(1,nbpnt);
2410 TColStd_Array1OfInteger mults(1,nbpnt);
2411 Standard_Integer ipidebm1;
2412
2413 for(i = 1, ipidebm1 = i+ideb-1; i <= nbpnt; ipidebm1++, i++) {
2414 Standard_Real U, V;
2415 if(onFirst)
2416 theWLine->Point(ipidebm1).ParametersOnS1(U, V);
2417 else
2418 theWLine->Point(ipidebm1).ParametersOnS2(U, V);
2419 poles(i).SetCoord(U, V);
2420 mults(i) = 1;
2421 knots(i) = i-1;
2422 }
2423 mults(1) = mults(nbpnt) = 2;
2424
2425 return new Geom2d_BSplineCurve(poles,knots,mults,1);
2426}
2427//=======================================================================
2428//function : PrepareLines3D
2429//purpose :
2430//=======================================================================
a9f7b6b5 2431 void IntTools_FaceFace::PrepareLines3D(const Standard_Boolean bToSplit)
7fd59977 2432{
a9f7b6b5
P
2433 Standard_Integer i, aNbCurves;
2434 GeomAbs_SurfaceType aType1, aType2;
7fd59977 2435 IntTools_SequenceOfCurves aNewCvs;
7fd59977 2436 //
a9f7b6b5 2437 // 1. Treatment closed curves
7fd59977 2438 aNbCurves=mySeqOfCurve.Length();
a9f7b6b5 2439 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2440 const IntTools_Curve& aIC=mySeqOfCurve(i);
7fd59977 2441 //
a9f7b6b5
P
2442 if (bToSplit) {
2443 Standard_Integer j, aNbC;
2444 IntTools_SequenceOfCurves aSeqCvs;
2445 //
2446 aNbC=IntTools_Tools::SplitCurve(aIC, aSeqCvs);
2447 if (aNbC) {
2448 for (j=1; j<=aNbC; ++j) {
2449 const IntTools_Curve& aICNew=aSeqCvs(j);
2450 aNewCvs.Append(aICNew);
2451 }
2452 }
2453 else {
2454 aNewCvs.Append(aIC);
7fd59977 2455 }
2456 }
7fd59977 2457 else {
2458 aNewCvs.Append(aIC);
2459 }
2460 }
2461 //
2462 // 2. Plane\Cone intersection when we had 4 curves
a9f7b6b5
P
2463 aType1=myHS1->GetType();
2464 aType2=myHS2->GetType();
2465 aNbCurves=aNewCvs.Length();
2466 //
7fd59977 2467 if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Cone) ||
2468 (aType2==GeomAbs_Plane && aType1==GeomAbs_Cone)) {
7fd59977 2469 if (aNbCurves==4) {
a9f7b6b5
P
2470 GeomAbs_CurveType aCType1;
2471 //
2472 aCType1=aNewCvs(1).Type();
7fd59977 2473 if (aCType1==GeomAbs_Line) {
2474 IntTools_SequenceOfCurves aSeqIn, aSeqOut;
2475 //
a9f7b6b5 2476 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2477 const IntTools_Curve& aIC=aNewCvs(i);
2478 aSeqIn.Append(aIC);
2479 }
2480 //
2481 IntTools_Tools::RejectLines(aSeqIn, aSeqOut);
2482 //
2483 aNewCvs.Clear();
2484 aNbCurves=aSeqOut.Length();
a9f7b6b5 2485 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2486 const IntTools_Curve& aIC=aSeqOut(i);
2487 aNewCvs.Append(aIC);
2488 }
7fd59977 2489 }
2490 }
a9f7b6b5 2491 }// if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Cone)...
7fd59977 2492 //
2493 // 3. Fill mySeqOfCurve
2494 mySeqOfCurve.Clear();
2495 aNbCurves=aNewCvs.Length();
a9f7b6b5 2496 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2497 const IntTools_Curve& aIC=aNewCvs(i);
2498 mySeqOfCurve.Append(aIC);
2499 }
7fd59977 2500}
7fd59977 2501//=======================================================================
2502//function : CorrectSurfaceBoundaries
2503//purpose :
2504//=======================================================================
2505 void CorrectSurfaceBoundaries(const TopoDS_Face& theFace,
2506 const Standard_Real theTolerance,
2507 Standard_Real& theumin,
2508 Standard_Real& theumax,
2509 Standard_Real& thevmin,
2510 Standard_Real& thevmax)
2511{
2512 Standard_Boolean enlarge, isuperiodic, isvperiodic;
2513 Standard_Real uinf, usup, vinf, vsup, delta;
2514 GeomAbs_SurfaceType aType;
2515 Handle(Geom_Surface) aSurface;
2516 //
2517 aSurface = BRep_Tool::Surface(theFace);
2518 aSurface->Bounds(uinf, usup, vinf, vsup);
2519 delta = theTolerance;
2520 enlarge = Standard_False;
2521 //
2522 GeomAdaptor_Surface anAdaptorSurface(aSurface);
2523 //
2524 if(aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
2525 Handle(Geom_Surface) aBasisSurface =
2526 (Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface))->BasisSurface();
2527
2528 if(aBasisSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ||
2529 aBasisSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2530 return;
2531 }
2532 }
2533 //
2534 if(aSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2535 Handle(Geom_Surface) aBasisSurface =
2536 (Handle(Geom_OffsetSurface)::DownCast(aSurface))->BasisSurface();
2537
2538 if(aBasisSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ||
2539 aBasisSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2540 return;
2541 }
2542 }
2543 //
2544 isuperiodic = anAdaptorSurface.IsUPeriodic();
2545 isvperiodic = anAdaptorSurface.IsVPeriodic();
2546 //
2547 aType=anAdaptorSurface.GetType();
2548 if((aType==GeomAbs_BezierSurface) ||
2549 (aType==GeomAbs_BSplineSurface) ||
2550 (aType==GeomAbs_SurfaceOfExtrusion) ||
2551 (aType==GeomAbs_SurfaceOfRevolution)) {
2552 enlarge=Standard_True;
2553 }
2554 //
b9894805 2555 if (aType==GeomAbs_Sphere) {
2556 Standard_Real dV;
2557 //
2558 dV=thevmax-thevmin;
2559 if (dV+delta<M_PI) {
2560 enlarge=Standard_True;
2561 }
2562 }
2563 //
7fd59977 2564 if(!isuperiodic && enlarge) {
2565
2566 if((theumin - uinf) > delta )
2567 theumin -= delta;
2568 else {
2569 theumin = uinf;
2570 }
2571
2572 if((usup - theumax) > delta )
2573 theumax += delta;
2574 else
2575 theumax = usup;
2576 }
2577 //
2578 if(!isvperiodic && enlarge) {
2579 if((thevmin - vinf) > delta ) {
2580 thevmin -= delta;
2581 }
2582 else {
2583 thevmin = vinf;
2584 }
2585 if((vsup - thevmax) > delta ) {
2586 thevmax += delta;
2587 }
2588 else {
2589 thevmax = vsup;
2590 }
2591 }
2592 //
2593 {
2594 Standard_Integer aNbP;
2595 Standard_Real aXP, dXfact, aXmid, aX1, aX2, aTolPA;
2596 //
2597 aTolPA=Precision::Angular();
2598 // U
2599 if (isuperiodic) {
2600 aXP=anAdaptorSurface.UPeriod();
2601 dXfact=theumax-theumin;
2602 if (dXfact-aTolPA>aXP) {
2603 aXmid=0.5*(theumax+theumin);
2604 aNbP=RealToInt(aXmid/aXP);
2605 if (aXmid<0.) {
2606 aNbP=aNbP-1;
2607 }
2608 aX1=aNbP*aXP;
0fc4f2e2
P
2609 if (theumin>aTolPA) {
2610 aX1=theumin+aNbP*aXP;
2611 }
7fd59977 2612 aX2=aX1+aXP;
2613 if (theumin<aX1) {
2614 theumin=aX1;
2615 }
2616 if (theumax>aX2) {
2617 theumax=aX2;
2618 }
2619 }
2620 }
2621 // V
2622 if (isvperiodic) {
2623 aXP=anAdaptorSurface.VPeriod();
2624 dXfact=thevmax-thevmin;
2625 if (dXfact-aTolPA>aXP) {
2626 aXmid=0.5*(thevmax+thevmin);
2627 aNbP=RealToInt(aXmid/aXP);
2628 if (aXmid<0.) {
2629 aNbP=aNbP-1;
2630 }
2631 aX1=aNbP*aXP;
0fc4f2e2
P
2632 if (thevmin>aTolPA) {
2633 aX1=thevmin+aNbP*aXP;
2634 }
7fd59977 2635 aX2=aX1+aXP;
2636 if (thevmin<aX1) {
2637 thevmin=aX1;
2638 }
2639 if (thevmax>aX2) {
2640 thevmax=aX2;
2641 }
2642 }
2643 }
2644 }
2645 //
2646 if(isuperiodic || isvperiodic) {
2647 Standard_Boolean correct = Standard_False;
2648 Standard_Boolean correctU = Standard_False;
2649 Standard_Boolean correctV = Standard_False;
2650 Bnd_Box2d aBox;
2651 TopExp_Explorer anExp;
2652
2653 for(anExp.Init(theFace, TopAbs_EDGE); anExp.More(); anExp.Next()) {
2654 if(BRep_Tool::IsClosed(TopoDS::Edge(anExp.Current()), theFace)) {
2655 correct = Standard_True;
2656 Standard_Real f, l;
2657 TopoDS_Edge anEdge = TopoDS::Edge(anExp.Current());
2658
2659 for(Standard_Integer i = 0; i < 2; i++) {
2660 if(i==0) {
2661 anEdge.Orientation(TopAbs_FORWARD);
2662 }
2663 else {
2664 anEdge.Orientation(TopAbs_REVERSED);
2665 }
2666 Handle(Geom2d_Curve) aCurve = BRep_Tool::CurveOnSurface(anEdge, theFace, f, l);
2667
2668 if(aCurve.IsNull()) {
2669 correct = Standard_False;
2670 break;
2671 }
2672 Handle(Geom2d_Line) aLine = Handle(Geom2d_Line)::DownCast(aCurve);
2673
2674 if(aLine.IsNull()) {
2675 correct = Standard_False;
2676 break;
2677 }
2678 gp_Dir2d anUDir(1., 0.);
2679 gp_Dir2d aVDir(0., 1.);
2680 Standard_Real anAngularTolerance = Precision::Angular();
2681
2682 correctU = correctU || aLine->Position().Direction().IsParallel(aVDir, anAngularTolerance);
2683 correctV = correctV || aLine->Position().Direction().IsParallel(anUDir, anAngularTolerance);
2684
2685 gp_Pnt2d pp1 = aCurve->Value(f);
2686 aBox.Add(pp1);
2687 gp_Pnt2d pp2 = aCurve->Value(l);
2688 aBox.Add(pp2);
2689 }
2690 if(!correct)
2691 break;
2692 }
2693 }
2694
2695 if(correct) {
2696 Standard_Real umin, vmin, umax, vmax;
2697 aBox.Get(umin, vmin, umax, vmax);
2698
2699 if(isuperiodic && correctU) {
2700
2701 if(theumin < umin)
2702 theumin = umin;
2703
2704 if(theumax > umax) {
2705 theumax = umax;
2706 }
2707 }
2708 if(isvperiodic && correctV) {
2709
2710 if(thevmin < vmin)
2711 thevmin = vmin;
2712 if(thevmax > vmax)
2713 thevmax = vmax;
2714 }
2715 }
2716 }
2717}
2718//
2719//
2720// The block is dedicated to determine whether WLine [ifprm, ilprm]
2721// crosses the degenerated zone on each given surface or not.
2722// If Yes -> We will not use info about surfaces during approximation
8e0115e4 2723// because inside degenerated zone of the surface the approx. algo.
7fd59977 2724// uses wrong values of normal, etc., and resulting curve will have
2725// oscillations that we would not like to have.
7fd59977 2726
2727
4e57c75e 2728
7fd59977 2729static
2730 Standard_Boolean IsDegeneratedZone(const gp_Pnt2d& aP2d,
2731 const Handle(Geom_Surface)& aS,
2732 const Standard_Integer iDir);
2733static
2734 Standard_Boolean IsPointInDegeneratedZone(const IntSurf_PntOn2S& aP2S,
2735 const TopoDS_Face& aF1,
2736 const TopoDS_Face& aF2);
2737//=======================================================================
2738//function : NotUseSurfacesForApprox
2739//purpose :
2740//=======================================================================
2741Standard_Boolean NotUseSurfacesForApprox(const TopoDS_Face& aF1,
2742 const TopoDS_Face& aF2,
2743 const Handle(IntPatch_WLine)& WL,
2744 const Standard_Integer ifprm,
2745 const Standard_Integer ilprm)
2746{
2747 Standard_Boolean bPInDZ;
2748
2749 Handle(IntSurf_LineOn2S) aLineOn2S=WL->Curve();
2750
2751 const IntSurf_PntOn2S& aP2Sfprm=aLineOn2S->Value(ifprm);
2752 bPInDZ=IsPointInDegeneratedZone(aP2Sfprm, aF1, aF2);
2753 if (bPInDZ) {
2754 return bPInDZ;
2755 }
2756
2757 const IntSurf_PntOn2S& aP2Slprm=aLineOn2S->Value(ilprm);
2758 bPInDZ=IsPointInDegeneratedZone(aP2Slprm, aF1, aF2);
2759
2760 return bPInDZ;
2761}
2762//=======================================================================
2763//function : IsPointInDegeneratedZone
2764//purpose :
2765//=======================================================================
2766Standard_Boolean IsPointInDegeneratedZone(const IntSurf_PntOn2S& aP2S,
2767 const TopoDS_Face& aF1,
2768 const TopoDS_Face& aF2)
2769
2770{
2771 Standard_Boolean bFlag=Standard_True;
2772 Standard_Real US11, US12, VS11, VS12, US21, US22, VS21, VS22;
2773 Standard_Real U1, V1, U2, V2, aDelta, aD;
2774 gp_Pnt2d aP2d;
2775
2776 Handle(Geom_Surface)aS1 = BRep_Tool::Surface(aF1);
2777 aS1->Bounds(US11, US12, VS11, VS12);
2778 GeomAdaptor_Surface aGAS1(aS1);
2779
2780 Handle(Geom_Surface)aS2 = BRep_Tool::Surface(aF2);
2781 aS1->Bounds(US21, US22, VS21, VS22);
2782 GeomAdaptor_Surface aGAS2(aS2);
2783 //
2784 //const gp_Pnt& aP=aP2S.Value();
2785 aP2S.Parameters(U1, V1, U2, V2);
2786 //
2787 aDelta=1.e-7;
2788 // Check on Surf 1
2789 aD=aGAS1.UResolution(aDelta);
2790 aP2d.SetCoord(U1, V1);
2791 if (fabs(U1-US11) < aD) {
2792 bFlag=IsDegeneratedZone(aP2d, aS1, 1);
2793 if (bFlag) {
2794 return bFlag;
2795 }
2796 }
2797 if (fabs(U1-US12) < aD) {
2798 bFlag=IsDegeneratedZone(aP2d, aS1, 1);
2799 if (bFlag) {
2800 return bFlag;
2801 }
2802 }
2803 aD=aGAS1.VResolution(aDelta);
2804 if (fabs(V1-VS11) < aDelta) {
2805 bFlag=IsDegeneratedZone(aP2d, aS1, 2);
2806 if (bFlag) {
2807 return bFlag;
2808 }
2809 }
2810 if (fabs(V1-VS12) < aDelta) {
2811 bFlag=IsDegeneratedZone(aP2d, aS1, 2);
2812 if (bFlag) {
2813 return bFlag;
2814 }
2815 }
2816 // Check on Surf 2
2817 aD=aGAS2.UResolution(aDelta);
2818 aP2d.SetCoord(U2, V2);
2819 if (fabs(U2-US21) < aDelta) {
2820 bFlag=IsDegeneratedZone(aP2d, aS2, 1);
2821 if (bFlag) {
2822 return bFlag;
2823 }
2824 }
2825 if (fabs(U2-US22) < aDelta) {
2826 bFlag=IsDegeneratedZone(aP2d, aS2, 1);
2827 if (bFlag) {
2828 return bFlag;
2829 }
2830 }
2831 aD=aGAS2.VResolution(aDelta);
2832 if (fabs(V2-VS21) < aDelta) {
2833 bFlag=IsDegeneratedZone(aP2d, aS2, 2);
2834 if (bFlag) {
2835 return bFlag;
2836 }
2837 }
2838 if (fabs(V2-VS22) < aDelta) {
2839 bFlag=IsDegeneratedZone(aP2d, aS2, 2);
2840 if (bFlag) {
2841 return bFlag;
2842 }
2843 }
2844 return !bFlag;
2845}
2846
2847//=======================================================================
2848//function : IsDegeneratedZone
2849//purpose :
2850//=======================================================================
2851Standard_Boolean IsDegeneratedZone(const gp_Pnt2d& aP2d,
2852 const Handle(Geom_Surface)& aS,
2853 const Standard_Integer iDir)
2854{
2855 Standard_Boolean bFlag=Standard_True;
2856 Standard_Real US1, US2, VS1, VS2, dY, dX, d1, d2, dD;
2857 Standard_Real aXm, aYm, aXb, aYb, aXe, aYe;
2858 aS->Bounds(US1, US2, VS1, VS2);
2859
2860 gp_Pnt aPm, aPb, aPe;
2861
2862 aXm=aP2d.X();
2863 aYm=aP2d.Y();
2864
2865 aS->D0(aXm, aYm, aPm);
2866
2867 dX=1.e-5;
2868 dY=1.e-5;
2869 dD=1.e-12;
2870
2871 if (iDir==1) {
2872 aXb=aXm;
2873 aXe=aXm;
2874 aYb=aYm-dY;
2875 if (aYb < VS1) {
2876 aYb=VS1;
2877 }
2878 aYe=aYm+dY;
2879 if (aYe > VS2) {
2880 aYe=VS2;
2881 }
2882 aS->D0(aXb, aYb, aPb);
2883 aS->D0(aXe, aYe, aPe);
2884
2885 d1=aPm.Distance(aPb);
2886 d2=aPm.Distance(aPe);
2887 if (d1 < dD && d2 < dD) {
2888 return bFlag;
2889 }
2890 return !bFlag;
2891 }
2892 //
2893 else if (iDir==2) {
2894 aYb=aYm;
2895 aYe=aYm;
2896 aXb=aXm-dX;
2897 if (aXb < US1) {
2898 aXb=US1;
2899 }
2900 aXe=aXm+dX;
2901 if (aXe > US2) {
2902 aXe=US2;
2903 }
2904 aS->D0(aXb, aYb, aPb);
2905 aS->D0(aXe, aYe, aPe);
2906
2907 d1=aPm.Distance(aPb);
2908 d2=aPm.Distance(aPe);
2909 if (d1 < dD && d2 < dD) {
2910 return bFlag;
2911 }
2912 return !bFlag;
2913 }
2914 return !bFlag;
2915}
2916
2917//=========================================================================
2918// static function : ComputePurgedWLine
2919// purpose : Removes equal points (leave one of equal points) from theWLine
2920// and recompute vertex parameters.
2921// Returns new WLine or null WLine if the number
2922// of the points is less than 2.
2923//=========================================================================
2924Handle(IntPatch_WLine) ComputePurgedWLine(const Handle(IntPatch_WLine)& theWLine) {
3928aec6 2925
3928aec6 2926 Standard_Integer i, k, v, nb, nbvtx;
7fd59977 2927 Handle(IntPatch_WLine) aResult;
3928aec6
P
2928 nbvtx = theWLine->NbVertex();
2929 nb = theWLine->NbPnts();
2930 if (nb==2) {
2931 const IntSurf_PntOn2S& p1 = theWLine->Point(1);
2932 const IntSurf_PntOn2S& p2 = theWLine->Point(2);
2933 if(p1.Value().IsEqual(p2.Value(), gp::Resolution())) {
2934 return aResult;
2935 }
2936 }
2937 //
7fd59977 2938 Handle(IntPatch_WLine) aLocalWLine;
2939 Handle(IntPatch_WLine) aTmpWLine = theWLine;
7fd59977 2940 Handle(IntSurf_LineOn2S) aLineOn2S = new IntSurf_LineOn2S();
2941 aLocalWLine = new IntPatch_WLine(aLineOn2S, Standard_False);
7fd59977 2942 for(i = 1; i <= nb; i++) {
2943 aLineOn2S->Add(theWLine->Point(i));
2944 }
2945
2946 for(v = 1; v <= nbvtx; v++) {
2947 aLocalWLine->AddVertex(theWLine->Vertex(v));
2948 }
2949
2950 for(i = 1; i <= aLineOn2S->NbPoints(); i++) {
2951 Standard_Integer aStartIndex = i + 1;
2952 Standard_Integer anEndIndex = i + 5;
2953 nb = aLineOn2S->NbPoints();
2954 anEndIndex = (anEndIndex > nb) ? nb : anEndIndex;
2955
a2eede02 2956 if((aStartIndex > nb) || (anEndIndex <= 1)) {
7fd59977 2957 continue;
2958 }
2959 k = aStartIndex;
2960
2961 while(k <= anEndIndex) {
2962
2963 if(i != k) {
2964 IntSurf_PntOn2S p1 = aLineOn2S->Value(i);
2965 IntSurf_PntOn2S p2 = aLineOn2S->Value(k);
2966
2967 if(p1.Value().IsEqual(p2.Value(), gp::Resolution())) {
2968 aTmpWLine = aLocalWLine;
2969 aLocalWLine = new IntPatch_WLine(aLineOn2S, Standard_False);
2970
2971 for(v = 1; v <= aTmpWLine->NbVertex(); v++) {
2972 IntPatch_Point aVertex = aTmpWLine->Vertex(v);
2973 Standard_Integer avertexindex = (Standard_Integer)aVertex.ParameterOnLine();
2974
2975 if(avertexindex >= k) {
2976 aVertex.SetParameter(aVertex.ParameterOnLine() - 1.);
2977 }
2978 aLocalWLine->AddVertex(aVertex);
2979 }
2980 aLineOn2S->RemovePoint(k);
2981 anEndIndex--;
2982 continue;
2983 }
2984 }
2985 k++;
2986 }
2987 }
2988
2989 if(aLineOn2S->NbPoints() > 1) {
2990 aResult = aLocalWLine;
2991 }
2992 return aResult;
2993}
2994
2995//=======================================================================
2996//function : TolR3d
2997//purpose :
2998//=======================================================================
2999void TolR3d(const TopoDS_Face& aF1,
3000 const TopoDS_Face& aF2,
3001 Standard_Real& myTolReached3d)
3002{
3003 Standard_Real aTolF1, aTolF2, aTolFMax, aTolTresh;
3004
3005 aTolTresh=2.999999e-3;
3006 aTolF1 = BRep_Tool::Tolerance(aF1);
3007 aTolF2 = BRep_Tool::Tolerance(aF2);
3008 aTolFMax=Max(aTolF1, aTolF2);
3009
3010 if (aTolFMax>aTolTresh) {
3011 myTolReached3d=aTolFMax;
3012 }
3013}
3014//=======================================================================
3015//function : AdjustPeriodic
3016//purpose :
3017//=======================================================================
3018Standard_Real AdjustPeriodic(const Standard_Real theParameter,
3019 const Standard_Real parmin,
3020 const Standard_Real parmax,
3021 const Standard_Real thePeriod,
3022 Standard_Real& theOffset)
3023{
3024 Standard_Real aresult;
3025 //
3026 theOffset = 0.;
3027 aresult = theParameter;
3028 while(aresult < parmin) {
3029 aresult += thePeriod;
3030 theOffset += thePeriod;
3031 }
3032
3033 while(aresult > parmax) {
3034 aresult -= thePeriod;
3035 theOffset -= thePeriod;
3036 }
3037 return aresult;
3038}
3039//=======================================================================
3040//function : IsPointOnBoundary
3041//purpose :
3042//=======================================================================
3043Standard_Boolean IsPointOnBoundary(const Standard_Real theParameter,
3044 const Standard_Real theFirstBoundary,
3045 const Standard_Real theSecondBoundary,
3046 const Standard_Real theResolution,
3047 Standard_Boolean& IsOnFirstBoundary)
3048{
3049 Standard_Boolean bRet;
3050 Standard_Integer i;
3051 Standard_Real adist;
3052 //
3053 bRet=Standard_False;
3054 for(i = 0; i < 2; ++i) {
3055 IsOnFirstBoundary = (i == 0);
3056 if (IsOnFirstBoundary) {
3057 adist = fabs(theParameter - theFirstBoundary);
3058 }
3059 else {
3060 adist = fabs(theParameter - theSecondBoundary);
3061 }
3062 if(adist < theResolution) {
3063 return !bRet;
3064 }
3065 }
3066 return bRet;
3067}
3068// ------------------------------------------------------------------------------------------------
3069// static function: FindPoint
3070// purpose:
3071// ------------------------------------------------------------------------------------------------
3072Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
3073 const gp_Pnt2d& theLastPoint,
3074 const Standard_Real theUmin,
3075 const Standard_Real theUmax,
3076 const Standard_Real theVmin,
3077 const Standard_Real theVmax,
3078 gp_Pnt2d& theNewPoint) {
3079
3080 gp_Vec2d aVec(theFirstPoint, theLastPoint);
3081 Standard_Integer i = 0, j = 0;
3082
3083 for(i = 0; i < 4; i++) {
3084 gp_Vec2d anOtherVec;
3085 gp_Vec2d anOtherVecNormal;
3086 gp_Pnt2d aprojpoint = theLastPoint;
3087
3088 if((i % 2) == 0) {
3089 anOtherVec.SetX(0.);
3090 anOtherVec.SetY(1.);
3091 anOtherVecNormal.SetX(1.);
3092 anOtherVecNormal.SetY(0.);
3093
3094 if(i < 2)
3095 aprojpoint.SetX(theUmin);
3096 else
3097 aprojpoint.SetX(theUmax);
3098 }
3099 else {
3100 anOtherVec.SetX(1.);
3101 anOtherVec.SetY(0.);
3102 anOtherVecNormal.SetX(0.);
3103 anOtherVecNormal.SetY(1.);
3104
3105 if(i < 2)
3106 aprojpoint.SetY(theVmin);
3107 else
3108 aprojpoint.SetY(theVmax);
3109 }
3110 gp_Vec2d anormvec = aVec;
3111 anormvec.Normalize();
fa9681ca 3112 RefineVector(anormvec);
7fd59977 3113 Standard_Real adot1 = anormvec.Dot(anOtherVecNormal);
3114
3115 if(fabs(adot1) < Precision::Angular())
3116 continue;
3117 Standard_Real adist = 0.;
3118 Standard_Boolean bIsOut = Standard_False;
3119
3120 if((i % 2) == 0) {
3121 adist = (i < 2) ? fabs(theLastPoint.X() - theUmin) : fabs(theLastPoint.X() - theUmax);
3122 bIsOut = (i < 2) ? (theLastPoint.X() < theUmin) : (theLastPoint.X() > theUmax);
3123 }
3124 else {
3125 adist = (i < 2) ? fabs(theLastPoint.Y() - theVmin) : fabs(theLastPoint.Y() - theVmax);
3126 bIsOut = (i < 2) ? (theLastPoint.Y() < theVmin) : (theLastPoint.Y() > theVmax);
3127 }
3128 Standard_Real anoffset = adist * anOtherVec.Dot(anormvec) / adot1;
3129
3130 for(j = 0; j < 2; j++) {
3131 anoffset = (j == 0) ? anoffset : -anoffset;
3132 gp_Pnt2d acurpoint(aprojpoint.XY() + (anOtherVec.XY()*anoffset));
3133 gp_Vec2d acurvec(theLastPoint, acurpoint);
3134 if ( bIsOut )
3135 acurvec.Reverse();
3136
9e9df9d9
P
3137 Standard_Real aDotX, anAngleX;
3138 //
3139 aDotX = aVec.Dot(acurvec);
3140 anAngleX = aVec.Angle(acurvec);
3141 //
3142 if(aDotX > 0. && fabs(anAngleX) < Precision::PConfusion()) {
7fd59977 3143 if((i % 2) == 0) {
3144 if((acurpoint.Y() >= theVmin) &&
3145 (acurpoint.Y() <= theVmax)) {
3146 theNewPoint = acurpoint;
3147 return Standard_True;
3148 }
3149 }
3150 else {
3151 if((acurpoint.X() >= theUmin) &&
3152 (acurpoint.X() <= theUmax)) {
3153 theNewPoint = acurpoint;
3154 return Standard_True;
3155 }
3156 }
3157 }
3158 }
3159 }
3160 return Standard_False;
3161}
3162
3163
3164// ------------------------------------------------------------------------------------------------
3165// static function: FindPoint
3166// purpose: Find point on the boundary of radial tangent zone
3167// ------------------------------------------------------------------------------------------------
3168Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
3169 const gp_Pnt2d& theLastPoint,
3170 const Standard_Real theUmin,
3171 const Standard_Real theUmax,
3172 const Standard_Real theVmin,
3173 const Standard_Real theVmax,
3174 const gp_Pnt2d& theTanZoneCenter,
3175 const Standard_Real theZoneRadius,
3176 Handle(GeomAdaptor_HSurface) theGASurface,
3177 gp_Pnt2d& theNewPoint) {
3178 theNewPoint = theLastPoint;
3179
3180 if ( !IsInsideTanZone( theLastPoint, theTanZoneCenter, theZoneRadius, theGASurface) )
3181 return Standard_False;
3182
3183 Standard_Real aUResolution = theGASurface->UResolution( theZoneRadius );
3184 Standard_Real aVResolution = theGASurface->VResolution( theZoneRadius );
3185
3186 Standard_Real aRadius = ( aUResolution < aVResolution ) ? aUResolution : aVResolution;
3187 gp_Ax22d anAxis( theTanZoneCenter, gp_Dir2d(1, 0), gp_Dir2d(0, 1) );
3188 gp_Circ2d aCircle( anAxis, aRadius );
3189
3190 //
3191 gp_Vec2d aDir( theLastPoint.XY() - theFirstPoint.XY() );
3192 Standard_Real aLength = aDir.Magnitude();
3193 if ( aLength <= gp::Resolution() )
3194 return Standard_False;
3195 gp_Lin2d aLine( theFirstPoint, aDir );
3196
3197 //
3198 Handle(Geom2d_Line) aCLine = new Geom2d_Line( aLine );
3199 Handle(Geom2d_TrimmedCurve) aC1 = new Geom2d_TrimmedCurve( aCLine, 0, aLength );
3200 Handle(Geom2d_Circle) aC2 = new Geom2d_Circle( aCircle );
3201
3202 Standard_Real aTol = aRadius * 0.001;
3203 aTol = ( aTol < Precision::PConfusion() ) ? Precision::PConfusion() : aTol;
3204
3205 Geom2dAPI_InterCurveCurve anIntersector;
3206 anIntersector.Init( aC1, aC2, aTol );
3207
3208 if ( anIntersector.NbPoints() == 0 )
3209 return Standard_False;
3210
3211 Standard_Boolean aFound = Standard_False;
3212 Standard_Real aMinDist = aLength * aLength;
3213 Standard_Integer i = 0;
3214 for ( i = 1; i <= anIntersector.NbPoints(); i++ ) {
3215 gp_Pnt2d aPInt = anIntersector.Point( i );
3216 if ( aPInt.SquareDistance( theFirstPoint ) < aMinDist ) {
3217 if ( ( aPInt.X() >= theUmin ) && ( aPInt.X() <= theUmax ) &&
3218 ( aPInt.Y() >= theVmin ) && ( aPInt.Y() <= theVmax ) ) {
3219 theNewPoint = aPInt;
3220 aFound = Standard_True;
3221 }
3222 }
3223 }
3224
3225 return aFound;
3226}
3227
3228// ------------------------------------------------------------------------------------------------
3229// static function: IsInsideTanZone
3230// purpose: Check if point is inside a radial tangent zone
3231// ------------------------------------------------------------------------------------------------
3232Standard_Boolean IsInsideTanZone(const gp_Pnt2d& thePoint,
3233 const gp_Pnt2d& theTanZoneCenter,
3234 const Standard_Real theZoneRadius,
3235 Handle(GeomAdaptor_HSurface) theGASurface) {
3236
3237 Standard_Real aUResolution = theGASurface->UResolution( theZoneRadius );
3238 Standard_Real aVResolution = theGASurface->VResolution( theZoneRadius );
3239 Standard_Real aRadiusSQR = ( aUResolution < aVResolution ) ? aUResolution : aVResolution;
3240 aRadiusSQR *= aRadiusSQR;
3241 if ( thePoint.SquareDistance( theTanZoneCenter ) <= aRadiusSQR )
3242 return Standard_True;
3243 return Standard_False;
3244}
3245
3246// ------------------------------------------------------------------------------------------------
3247// static function: CheckTangentZonesExist
3248// purpose: Check if tangent zone exists
3249// ------------------------------------------------------------------------------------------------
3250Standard_Boolean CheckTangentZonesExist( const Handle(GeomAdaptor_HSurface)& theSurface1,
3251 const Handle(GeomAdaptor_HSurface)& theSurface2 )
3252{
3253 if ( ( theSurface1->GetType() != GeomAbs_Torus ) ||
3254 ( theSurface2->GetType() != GeomAbs_Torus ) )
3255 return Standard_False;
3256
7fd59977 3257 gp_Torus aTor1 = theSurface1->Torus();
3258 gp_Torus aTor2 = theSurface2->Torus();
3259
3260 if ( aTor1.Location().Distance( aTor2.Location() ) > Precision::Confusion() )
3261 return Standard_False;
3262
3263 if ( ( fabs( aTor1.MajorRadius() - aTor2.MajorRadius() ) > Precision::Confusion() ) ||
3264 ( fabs( aTor1.MinorRadius() - aTor2.MinorRadius() ) > Precision::Confusion() ) )
3265 return Standard_False;
3266
3267 if ( ( aTor1.MajorRadius() < aTor1.MinorRadius() ) ||
3268 ( aTor2.MajorRadius() < aTor2.MinorRadius() ) )
3269 return Standard_False;
3270 return Standard_True;
3271}
3272
3273// ------------------------------------------------------------------------------------------------
3274// static function: ComputeTangentZones
3275// purpose:
3276// ------------------------------------------------------------------------------------------------
3277Standard_Integer ComputeTangentZones( const Handle(GeomAdaptor_HSurface)& theSurface1,
3278 const Handle(GeomAdaptor_HSurface)& theSurface2,
3279 const TopoDS_Face& theFace1,
3280 const TopoDS_Face& theFace2,
3281 Handle(TColgp_HArray1OfPnt2d)& theResultOnS1,
3282 Handle(TColgp_HArray1OfPnt2d)& theResultOnS2,
4f189102 3283 Handle(TColStd_HArray1OfReal)& theResultRadius,
4e57c75e 3284 const Handle(BOPInt_Context)& aContext)
4f189102 3285{
7fd59977 3286 Standard_Integer aResult = 0;
3287 if ( !CheckTangentZonesExist( theSurface1, theSurface2 ) )
3288 return aResult;
3289
7fd59977 3290
3291 TColgp_SequenceOfPnt2d aSeqResultS1, aSeqResultS2;
3292 TColStd_SequenceOfReal aSeqResultRad;
3293
3294 gp_Torus aTor1 = theSurface1->Torus();
3295 gp_Torus aTor2 = theSurface2->Torus();
3296
3297 gp_Ax2 anax1( aTor1.Location(), aTor1.Axis().Direction() );
3298 gp_Ax2 anax2( aTor2.Location(), aTor2.Axis().Direction() );
3299 Standard_Integer j = 0;
3300
3301 for ( j = 0; j < 2; j++ ) {
3302 Standard_Real aCoef = ( j == 0 ) ? -1 : 1;
3303 Standard_Real aRadius1 = fabs(aTor1.MajorRadius() + aCoef * aTor1.MinorRadius());
3304 Standard_Real aRadius2 = fabs(aTor2.MajorRadius() + aCoef * aTor2.MinorRadius());
3305
3306 gp_Circ aCircle1( anax1, aRadius1 );
3307 gp_Circ aCircle2( anax2, aRadius2 );
3308
3309 // roughly compute radius of tangent zone for perpendicular case
3310 Standard_Real aCriteria = Precision::Confusion() * 0.5;
3311
3312 Standard_Real aT1 = aCriteria;
3313 Standard_Real aT2 = aCriteria;
3314 if ( j == 0 ) {
3315 // internal tangency
3316 Standard_Real aR = ( aRadius1 > aTor2.MinorRadius() ) ? aRadius1 : aTor2.MinorRadius();
3317 //aT1 = aCriteria * aCriteria + aR * aR - ( aR - aCriteria ) * ( aR - aCriteria );
3318 aT1 = 2. * aR * aCriteria;
3319 aT2 = aT1;
3320 }
3321 else {
3322 // external tangency
3323 Standard_Real aRb = ( aRadius1 > aTor2.MinorRadius() ) ? aRadius1 : aTor2.MinorRadius();
3324 Standard_Real aRm = ( aRadius1 < aTor2.MinorRadius() ) ? aRadius1 : aTor2.MinorRadius();
3325 Standard_Real aDelta = aRb - aCriteria;
3326 aDelta *= aDelta;
3327 aDelta -= aRm * aRm;
3328 aDelta /= 2. * (aRb - aRm);
3329 aDelta -= 0.5 * (aRb - aRm);
3330
3331 aT1 = 2. * aRm * (aRm - aDelta);
3332 aT2 = aT1;
3333 }
3334 aCriteria = ( aT1 > aT2) ? aT1 : aT2;
3335 if ( aCriteria > 0 )
3336 aCriteria = sqrt( aCriteria );
3337
3338 if ( aCriteria > 0.5 * aTor1.MinorRadius() ) {
3339 // too big zone -> drop to minimum
3340 aCriteria = Precision::Confusion();
3341 }
3342
3343 GeomAdaptor_Curve aC1( new Geom_Circle(aCircle1) );
3344 GeomAdaptor_Curve aC2( new Geom_Circle(aCircle2) );
c6541a0c 3345 Extrema_ExtCC anExtrema(aC1, aC2, 0, 2. * M_PI, 0, 2. * M_PI,
7fd59977 3346 Precision::PConfusion(), Precision::PConfusion());
3347
3348 if ( anExtrema.IsDone() ) {
3349
3350 Standard_Integer i = 0;
3351 for ( i = 1; i <= anExtrema.NbExt(); i++ ) {
3352 if ( anExtrema.SquareDistance(i) > aCriteria * aCriteria )
3353 continue;
3354
3355 Extrema_POnCurv P1, P2;
3356 anExtrema.Points( i, P1, P2 );
3357
3358 Standard_Boolean bFoundResult = Standard_True;
3359 gp_Pnt2d pr1, pr2;
3360
3361 Standard_Integer surfit = 0;
3362 for ( surfit = 0; surfit < 2; surfit++ ) {
4f189102
P
3363 GeomAPI_ProjectPointOnSurf& aProjector =
3364 (surfit == 0) ? aContext->ProjPS(theFace1) : aContext->ProjPS(theFace2);
7fd59977 3365
3366 gp_Pnt aP3d = (surfit == 0) ? P1.Value() : P2.Value();
3367 aProjector.Perform(aP3d);
3368
3369 if(!aProjector.IsDone())
3370 bFoundResult = Standard_False;
3371 else {
3372 if(aProjector.LowerDistance() > aCriteria) {
3373 bFoundResult = Standard_False;
3374 }
3375 else {
3376 Standard_Real foundU = 0, foundV = 0;
3377 aProjector.LowerDistanceParameters(foundU, foundV);
3378 if ( surfit == 0 )
3379 pr1 = gp_Pnt2d( foundU, foundV );
3380 else
3381 pr2 = gp_Pnt2d( foundU, foundV );
3382 }
3383 }
3384 }
3385 if ( bFoundResult ) {
3386 aSeqResultS1.Append( pr1 );
3387 aSeqResultS2.Append( pr2 );
3388 aSeqResultRad.Append( aCriteria );
3389
3390 // torus is u and v periodic
c6541a0c 3391 const Standard_Real twoPI = M_PI + M_PI;
7fd59977 3392 Standard_Real arr1tmp[2] = {pr1.X(), pr1.Y()};
3393 Standard_Real arr2tmp[2] = {pr2.X(), pr2.Y()};
3394
3395 // iteration on period bounds
3396 for ( Standard_Integer k1 = 0; k1 < 2; k1++ ) {
3397 Standard_Real aBound = ( k1 == 0 ) ? 0 : twoPI;
3398 Standard_Real aShift = ( k1 == 0 ) ? twoPI : -twoPI;
3399
3400 // iteration on surfaces
3401 for ( Standard_Integer k2 = 0; k2 < 2; k2++ ) {
3402 Standard_Real* arr1 = ( k2 == 0 ) ? arr1tmp : arr2tmp;
3403 Standard_Real* arr2 = ( k2 != 0 ) ? arr1tmp : arr2tmp;
3404 TColgp_SequenceOfPnt2d& aSeqS1 = ( k2 == 0 ) ? aSeqResultS1 : aSeqResultS2;
3405 TColgp_SequenceOfPnt2d& aSeqS2 = ( k2 != 0 ) ? aSeqResultS1 : aSeqResultS2;
3406
3407 if (fabs(arr1[0] - aBound) < Precision::PConfusion()) {
3408 aSeqS1.Append( gp_Pnt2d( arr1[0] + aShift, arr1[1] ) );
3409 aSeqS2.Append( gp_Pnt2d( arr2[0], arr2[1] ) );
3410 aSeqResultRad.Append( aCriteria );
3411 }
3412 if (fabs(arr1[1] - aBound) < Precision::PConfusion()) {
3413 aSeqS1.Append( gp_Pnt2d( arr1[0], arr1[1] + aShift) );
3414 aSeqS2.Append( gp_Pnt2d( arr2[0], arr2[1] ) );
3415 aSeqResultRad.Append( aCriteria );
3416 }
3417 }
3418 } //
3419 }
3420 }
3421 }
3422 }
3423 aResult = aSeqResultRad.Length();
3424
3425 if ( aResult > 0 ) {
3426 theResultOnS1 = new TColgp_HArray1OfPnt2d( 1, aResult );
3427 theResultOnS2 = new TColgp_HArray1OfPnt2d( 1, aResult );
3428 theResultRadius = new TColStd_HArray1OfReal( 1, aResult );
3429
3430 for ( Standard_Integer i = 1 ; i <= aResult; i++ ) {
3431 theResultOnS1->SetValue( i, aSeqResultS1.Value(i) );
3432 theResultOnS2->SetValue( i, aSeqResultS2.Value(i) );
3433 theResultRadius->SetValue( i, aSeqResultRad.Value(i) );
3434 }
3435 }
3436 return aResult;
3437}
3438
3439// ------------------------------------------------------------------------------------------------
3440// static function: AdjustByNeighbour
3441// purpose:
3442// ------------------------------------------------------------------------------------------------
3443gp_Pnt2d AdjustByNeighbour(const gp_Pnt2d& theaNeighbourPoint,
3444 const gp_Pnt2d& theOriginalPoint,
3445 Handle(GeomAdaptor_HSurface) theGASurface) {
3446
3447 gp_Pnt2d ap1 = theaNeighbourPoint;
3448 gp_Pnt2d ap2 = theOriginalPoint;
3449
3450 if ( theGASurface->IsUPeriodic() ) {
3451 Standard_Real aPeriod = theGASurface->UPeriod();
3452 gp_Pnt2d aPTest = ap2;
3453 Standard_Real aSqDistMin = 1.e+100;
3454
3455 for ( Standard_Integer pIt = -1; pIt <= 1; pIt++) {
3456 aPTest.SetX( theOriginalPoint.X() + aPeriod * pIt );
3457 Standard_Real dd = ap1.SquareDistance( aPTest );
3458
3459 if ( dd < aSqDistMin ) {
3460 ap2 = aPTest;
3461 aSqDistMin = dd;
3462 }
3463 }
3464 }
3465 if ( theGASurface->IsVPeriodic() ) {
3466 Standard_Real aPeriod = theGASurface->VPeriod();
3467 gp_Pnt2d aPTest = ap2;
3468 Standard_Real aSqDistMin = 1.e+100;
3469
3470 for ( Standard_Integer pIt = -1; pIt <= 1; pIt++) {
3471 aPTest.SetY( theOriginalPoint.Y() + aPeriod * pIt );
3472 Standard_Real dd = ap1.SquareDistance( aPTest );
3473
3474 if ( dd < aSqDistMin ) {
3475 ap2 = aPTest;
3476 aSqDistMin = dd;
3477 }
3478 }
3479 }
3480 return ap2;
3481}
3482
3483// ------------------------------------------------------------------------------------------------
3484//function: DecompositionOfWLine
3485// purpose:
3486// ------------------------------------------------------------------------------------------------
3487Standard_Boolean DecompositionOfWLine(const Handle(IntPatch_WLine)& theWLine,
3488 const Handle(GeomAdaptor_HSurface)& theSurface1,
3489 const Handle(GeomAdaptor_HSurface)& theSurface2,
3490 const TopoDS_Face& theFace1,
3491 const TopoDS_Face& theFace2,
3492 const IntTools_LineConstructor& theLConstructor,
3493 const Standard_Boolean theAvoidLConstructor,
3494 IntPatch_SequenceOfLine& theNewLines,
4f189102 3495 Standard_Real& theReachedTol3d,
4e57c75e 3496 const Handle(BOPInt_Context)& aContext)
4f189102 3497{
7fd59977 3498
3499 Standard_Boolean bRet, bAvoidLineConstructor;
3500 Standard_Integer aNbPnts, aNbParts;
3501 //
3502 bRet=Standard_False;
3503 aNbPnts=theWLine->NbPnts();
3504 bAvoidLineConstructor=theAvoidLConstructor;
3505 //
3506 if(!aNbPnts){
3507 return bRet;
3508 }
3509 if (!bAvoidLineConstructor) {
3510 aNbParts=theLConstructor.NbParts();
3511 if (!aNbParts) {
3512 return bRet;
3513 }
3514 }
3515 //
3516 Standard_Boolean bIsPrevPointOnBoundary, bIsPointOnBoundary, bIsCurrentPointOnBoundary;
3517 Standard_Integer nblines, pit, i, j;
3518 Standard_Real aTol;
3519 TColStd_Array1OfListOfInteger anArrayOfLines(1, aNbPnts);
3520 TColStd_Array1OfInteger anArrayOfLineType(1, aNbPnts);
3521 TColStd_ListOfInteger aListOfPointIndex;
7fd59977 3522
3523 Handle(TColgp_HArray1OfPnt2d) aTanZoneS1;
3524 Handle(TColgp_HArray1OfPnt2d) aTanZoneS2;
3525 Handle(TColStd_HArray1OfReal) aTanZoneRadius;
3526 Standard_Integer aNbZone = ComputeTangentZones( theSurface1, theSurface2, theFace1, theFace2,
4f189102 3527 aTanZoneS1, aTanZoneS2, aTanZoneRadius, aContext);
7fd59977 3528
3529 //
3530 nblines=0;
3531 aTol=Precision::Confusion();
3532 aTol=0.5*aTol;
3533 bIsPrevPointOnBoundary=Standard_False;
3534 bIsPointOnBoundary=Standard_False;
3535 //
3536 // 1. ...
3537 //
3538 // Points
3539 for(pit = 1; pit <= aNbPnts; ++pit) {
3540 Standard_Boolean bIsOnFirstBoundary, isperiodic;
3541 Standard_Real aResolution, aPeriod, alowerboundary, aupperboundary, U, V;
3542 Standard_Real aParameter, anoffset, anAdjustPar;
3543 Standard_Real umin, umax, vmin, vmax;
3544 //
3545 bIsCurrentPointOnBoundary = Standard_False;
3546 const IntSurf_PntOn2S& aPoint = theWLine->Point(pit);
3547 //
3548 // Surface
3549 for(i = 0; i < 2; ++i) {
3550 Handle(GeomAdaptor_HSurface) aGASurface = (!i) ? theSurface1 : theSurface2;
3551 aGASurface->ChangeSurface().Surface()->Bounds(umin, umax, vmin, vmax);
3552 if(!i) {
3553 aPoint.ParametersOnS1(U, V);
3554 }
3555 else {
3556 aPoint.ParametersOnS2(U, V);
3557 }
3558 // U, V
3559 for(j = 0; j < 2; j++) {
3560 isperiodic = (!j) ? aGASurface->IsUPeriodic() : aGASurface->IsVPeriodic();
3561 if(!isperiodic){
3562 continue;
3563 }
3564 //
3565 if (!j) {
3566 aResolution=aGASurface->UResolution(aTol);
3567 aPeriod=aGASurface->UPeriod();
3568 alowerboundary=umin;
3569 aupperboundary=umax;
3570 aParameter=U;
3571 }
3572 else {
3573 aResolution=aGASurface->VResolution(aTol);
3574 aPeriod=aGASurface->VPeriod();
3575 alowerboundary=vmin;
3576 aupperboundary=vmax;
3577 aParameter=V;
3578 }
3579
3580 anoffset = 0.;
3581 anAdjustPar = AdjustPeriodic(aParameter,
3582 alowerboundary,
3583 aupperboundary,
3584 aPeriod,
3585 anoffset);
3586 //
3587 bIsOnFirstBoundary = Standard_True;// ?
3588 bIsPointOnBoundary=
3589 IsPointOnBoundary(anAdjustPar,
3590 alowerboundary,
3591 aupperboundary,
3592 aResolution,
3593 bIsOnFirstBoundary);
3594 //
3595 if(bIsPointOnBoundary) {
3596 bIsCurrentPointOnBoundary = Standard_True;
3597 break;
3598 }
3599 else {
3600 // check if a point belong to a tangent zone. Begin
3601 Standard_Integer zIt = 0;
3602 for ( zIt = 1; zIt <= aNbZone; zIt++ ) {
3603 gp_Pnt2d aPZone = (i == 0) ? aTanZoneS1->Value(zIt) : aTanZoneS2->Value(zIt);
3604 Standard_Real aZoneRadius = aTanZoneRadius->Value(zIt);
3605
3606 if ( IsInsideTanZone(gp_Pnt2d( U, V ), aPZone, aZoneRadius, aGASurface ) ) {
3607 // set boundary flag to split the curve by a tangent zone
3608 bIsPointOnBoundary = Standard_True;
3609 bIsCurrentPointOnBoundary = Standard_True;
3610 if ( theReachedTol3d < aZoneRadius ) {
3611 theReachedTol3d = aZoneRadius;
3612 }
3613 break;
3614 }
3615 }
3616 }
3617 }//for(j = 0; j < 2; j++) {
3618
3619 if(bIsCurrentPointOnBoundary){
3620 break;
3621 }
3622 }//for(i = 0; i < 2; ++i) {
3623 //
3624 if((bIsCurrentPointOnBoundary != bIsPrevPointOnBoundary)) {
3625 if(!aListOfPointIndex.IsEmpty()) {
3626 nblines++;
3627 anArrayOfLines.SetValue(nblines, aListOfPointIndex);
3628 anArrayOfLineType.SetValue(nblines, bIsPrevPointOnBoundary);
3629 aListOfPointIndex.Clear();
3630 }
3631 bIsPrevPointOnBoundary = bIsCurrentPointOnBoundary;
3632 }
3633 aListOfPointIndex.Append(pit);
3634 } //for(pit = 1; pit <= aNbPnts; ++pit) {
3635 //
3636 if(!aListOfPointIndex.IsEmpty()) {
3637 nblines++;
3638 anArrayOfLines.SetValue(nblines, aListOfPointIndex);
3639 anArrayOfLineType.SetValue(nblines, bIsPrevPointOnBoundary);
3640 aListOfPointIndex.Clear();
3641 }
3642 //
3643 if(nblines<=1) {
3644 return bRet; //Standard_False;
3645 }
3646 //
3647 //
3648 // 2. Correct wlines.begin
3649 TColStd_Array1OfListOfInteger anArrayOfLineEnds(1, nblines);
3650 Handle(IntSurf_LineOn2S) aSeqOfPntOn2S = new IntSurf_LineOn2S();
3651 //
3652 for(i = 1; i <= nblines; i++) {
3653 if(anArrayOfLineType.Value(i) != 0) {
3654 continue;
3655 }
3656 const TColStd_ListOfInteger& aListOfIndex = anArrayOfLines.Value(i);
3657 if(aListOfIndex.Extent() < 2) {
3658 continue;
3659 }
3660 TColStd_ListOfInteger aListOfFLIndex;
3661
3662 for(j = 0; j < 2; j++) {