0025019: Command "bsection" in Test Harness with flag build pcurve on second shape...
[occt.git] / src / IntTools / IntTools_FaceFace.cxx
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b311480e 1// Created on: 2000-11-23
2// Created by: Michael KLOKOV
973c2be1 3// Copyright (c) 2000-2014 OPEN CASCADE SAS
b311480e 4//
973c2be1 5// This file is part of Open CASCADE Technology software library.
b311480e 6//
d5f74e42 7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
b311480e 12//
973c2be1 13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
7fd59977 15
16#include <IntTools_FaceFace.ixx>
17
18#include <Precision.hxx>
19
20#include <TColStd_HArray1OfReal.hxx>
21#include <TColStd_Array1OfReal.hxx>
22#include <TColStd_Array1OfInteger.hxx>
23#include <TColStd_SequenceOfReal.hxx>
24#include <TColStd_ListOfInteger.hxx>
25#include <TColStd_ListIteratorOfListOfInteger.hxx>
26#include <TColStd_Array1OfListOfInteger.hxx>
27
28#include <gp_Lin2d.hxx>
29#include <gp_Ax22d.hxx>
30#include <gp_Circ2d.hxx>
31#include <gp_Torus.hxx>
32#include <gp_Cylinder.hxx>
33
34#include <Bnd_Box.hxx>
35
36#include <TColgp_HArray1OfPnt2d.hxx>
37#include <TColgp_SequenceOfPnt2d.hxx>
38#include <TColgp_Array1OfPnt.hxx>
39#include <TColgp_Array1OfPnt2d.hxx>
40
41#include <IntAna_QuadQuadGeo.hxx>
42
43#include <IntSurf_PntOn2S.hxx>
44#include <IntSurf_LineOn2S.hxx>
45#include <IntSurf_PntOn2S.hxx>
46#include <IntSurf_ListOfPntOn2S.hxx>
47#include <IntRes2d_Domain.hxx>
48#include <ProjLib_Plane.hxx>
49
50#include <IntPatch_GLine.hxx>
51#include <IntPatch_RLine.hxx>
52#include <IntPatch_WLine.hxx>
53#include <IntPatch_ALine.hxx>
54#include <IntPatch_ALineToWLine.hxx>
55
56#include <ElSLib.hxx>
57#include <ElCLib.hxx>
58
59#include <Extrema_ExtCC.hxx>
60#include <Extrema_POnCurv.hxx>
61#include <BndLib_AddSurface.hxx>
62
63#include <Adaptor3d_SurfacePtr.hxx>
64#include <Adaptor2d_HLine2d.hxx>
65
66#include <GeomAbs_SurfaceType.hxx>
67#include <GeomAbs_CurveType.hxx>
68
69#include <Geom_Surface.hxx>
70#include <Geom_Line.hxx>
71#include <Geom_Circle.hxx>
72#include <Geom_Ellipse.hxx>
73#include <Geom_Parabola.hxx>
74#include <Geom_Hyperbola.hxx>
75#include <Geom_TrimmedCurve.hxx>
76#include <Geom_BSplineCurve.hxx>
77#include <Geom_RectangularTrimmedSurface.hxx>
78#include <Geom_OffsetSurface.hxx>
79#include <Geom_Curve.hxx>
80#include <Geom_Conic.hxx>
81
82#include <Geom2d_TrimmedCurve.hxx>
83#include <Geom2d_BSplineCurve.hxx>
84#include <Geom2d_Line.hxx>
85#include <Geom2d_Curve.hxx>
86#include <Geom2d_Circle.hxx>
87
88#include <Geom2dAPI_InterCurveCurve.hxx>
89#include <Geom2dInt_GInter.hxx>
90#include <GeomAdaptor_Curve.hxx>
91#include <GeomAdaptor_HSurface.hxx>
92#include <GeomAdaptor_Surface.hxx>
93#include <GeomLib_CheckBSplineCurve.hxx>
94#include <GeomLib_Check2dBSplineCurve.hxx>
95
96#include <GeomInt_WLApprox.hxx>
97#include <GeomProjLib.hxx>
98#include <GeomAPI_ProjectPointOnSurf.hxx>
99#include <Geom2dAdaptor_Curve.hxx>
7fd59977 100#include <TopoDS.hxx>
101#include <TopoDS_Edge.hxx>
102#include <TopExp_Explorer.hxx>
103
104#include <BRep_Tool.hxx>
105#include <BRepTools.hxx>
106#include <BRepAdaptor_Surface.hxx>
107
7fd59977 108#include <IntTools_Curve.hxx>
109#include <IntTools_Tools.hxx>
110#include <IntTools_Tools.hxx>
111#include <IntTools_TopolTool.hxx>
112#include <IntTools_PntOnFace.hxx>
113#include <IntTools_PntOn2Faces.hxx>
1e143abb 114#include <IntTools_Context.hxx>
0fc4f2e2 115#include <IntSurf_ListIteratorOfListOfPntOn2S.hxx>
a2eede02 116
fa9681ca
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117static
118 void RefineVector(gp_Vec2d& aV2D);
4e18e72a 119#ifdef DEB_DUMPWLINE
a2eede02
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120static
121 void DumpWLine(const Handle(IntPatch_WLine)& aWLine);
4e18e72a 122#endif
7fd59977 123//
124static
125 void TolR3d(const TopoDS_Face& ,
655fddc8 126 const TopoDS_Face& ,
127 Standard_Real& );
7fd59977 128static
129 Handle(Geom_Curve) MakeBSpline (const Handle(IntPatch_WLine)&,
655fddc8 130 const Standard_Integer,
131 const Standard_Integer);
7fd59977 132
133static
134 void Parameters(const Handle(GeomAdaptor_HSurface)&,
655fddc8 135 const Handle(GeomAdaptor_HSurface)&,
136 const gp_Pnt&,
137 Standard_Real&,
138 Standard_Real&,
139 Standard_Real&,
140 Standard_Real&);
7fd59977 141
142static
143 void BuildPCurves (Standard_Real f,Standard_Real l,Standard_Real& Tol,
655fddc8 144 const Handle (Geom_Surface)& S,
145 const Handle (Geom_Curve)& C,
146 Handle (Geom2d_Curve)& C2d);
7fd59977 147
148static
149 void CorrectSurfaceBoundaries(const TopoDS_Face& theFace,
655fddc8 150 const Standard_Real theTolerance,
151 Standard_Real& theumin,
152 Standard_Real& theumax,
153 Standard_Real& thevmin,
154 Standard_Real& thevmax);
7fd59977 155static
156 Standard_Boolean NotUseSurfacesForApprox
157 (const TopoDS_Face& aF1,
655fddc8 158 const TopoDS_Face& aF2,
159 const Handle(IntPatch_WLine)& WL,
160 const Standard_Integer ifprm,
161 const Standard_Integer ilprm);
7fd59977 162
163static
164 Handle(IntPatch_WLine) ComputePurgedWLine(const Handle(IntPatch_WLine)& theWLine);
165
166static
7fd59977 167 Handle(Geom2d_BSplineCurve) MakeBSpline2d(const Handle(IntPatch_WLine)& theWLine,
655fddc8 168 const Standard_Integer ideb,
169 const Standard_Integer ifin,
170 const Standard_Boolean onFirst);
7fd59977 171
172static
173 Standard_Boolean DecompositionOfWLine(const Handle(IntPatch_WLine)& theWLine,
655fddc8 174 const Handle(GeomAdaptor_HSurface)& theSurface1,
175 const Handle(GeomAdaptor_HSurface)& theSurface2,
176 const TopoDS_Face& theFace1,
177 const TopoDS_Face& theFace2,
178 const IntTools_LineConstructor& theLConstructor,
179 const Standard_Boolean theAvoidLConstructor,
180 IntPatch_SequenceOfLine& theNewLines,
181 Standard_Real& theReachedTol3d,
1e143abb 182 const Handle(IntTools_Context)& );
7fd59977 183
184static
185 Standard_Boolean ParameterOutOfBoundary(const Standard_Real theParameter,
655fddc8 186 const Handle(Geom_Curve)& theCurve,
187 const TopoDS_Face& theFace1,
188 const TopoDS_Face& theFace2,
189 const Standard_Real theOtherParameter,
190 const Standard_Boolean bIncreasePar,
191 Standard_Real& theNewParameter,
1e143abb 192 const Handle(IntTools_Context)& );
7fd59977 193
194static
195 Standard_Boolean IsCurveValid(Handle(Geom2d_Curve)& thePCurve);
196
197static
198 Standard_Boolean IsPointOnBoundary(const Standard_Real theParameter,
655fddc8 199 const Standard_Real theFirstBoundary,
200 const Standard_Real theSecondBoundary,
201 const Standard_Real theResolution,
202 Standard_Boolean& IsOnFirstBoundary);
7fd59977 203static
204 Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
655fddc8 205 const gp_Pnt2d& theLastPoint,
206 const Standard_Real theUmin,
207 const Standard_Real theUmax,
208 const Standard_Real theVmin,
209 const Standard_Real theVmax,
210 gp_Pnt2d& theNewPoint);
7fd59977 211
212
213static
214 Standard_Integer ComputeTangentZones( const Handle(GeomAdaptor_HSurface)& theSurface1,
655fddc8 215 const Handle(GeomAdaptor_HSurface)& theSurface2,
216 const TopoDS_Face& theFace1,
217 const TopoDS_Face& theFace2,
218 Handle(TColgp_HArray1OfPnt2d)& theResultOnS1,
219 Handle(TColgp_HArray1OfPnt2d)& theResultOnS2,
220 Handle(TColStd_HArray1OfReal)& theResultRadius,
1e143abb 221 const Handle(IntTools_Context)& );
7fd59977 222
223static
224 Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
655fddc8 225 const gp_Pnt2d& theLastPoint,
226 const Standard_Real theUmin,
227 const Standard_Real theUmax,
228 const Standard_Real theVmin,
229 const Standard_Real theVmax,
230 const gp_Pnt2d& theTanZoneCenter,
231 const Standard_Real theZoneRadius,
232 Handle(GeomAdaptor_HSurface) theGASurface,
233 gp_Pnt2d& theNewPoint);
7fd59977 234
235static
236 Standard_Boolean IsInsideTanZone(const gp_Pnt2d& thePoint,
655fddc8 237 const gp_Pnt2d& theTanZoneCenter,
238 const Standard_Real theZoneRadius,
239 Handle(GeomAdaptor_HSurface) theGASurface);
7fd59977 240
241static
4f189102 242 gp_Pnt2d AdjustByNeighbour(const gp_Pnt2d& theaNeighbourPoint,
655fddc8 243 const gp_Pnt2d& theOriginalPoint,
244 Handle(GeomAdaptor_HSurface) theGASurface);
7fd59977 245static
4f189102 246 Standard_Boolean ApproxWithPCurves(const gp_Cylinder& theCyl,
655fddc8 247 const gp_Sphere& theSph);
7fd59977 248
249static void PerformPlanes(const Handle(GeomAdaptor_HSurface)& theS1,
655fddc8 250 const Handle(GeomAdaptor_HSurface)& theS2,
251 const Standard_Real TolAng,
252 const Standard_Real TolTang,
253 const Standard_Boolean theApprox1,
254 const Standard_Boolean theApprox2,
7fd59977 255 IntTools_SequenceOfCurves& theSeqOfCurve,
655fddc8 256 Standard_Boolean& theTangentFaces);
7fd59977 257
258static Standard_Boolean ClassifyLin2d(const Handle(GeomAdaptor_HSurface)& theS,
655fddc8 259 const gp_Lin2d& theLin2d,
260 const Standard_Real theTol,
261 Standard_Real& theP1,
262 Standard_Real& theP2);
0fc4f2e2 263//
7fd59977 264static
265 void ApproxParameters(const Handle(GeomAdaptor_HSurface)& aHS1,
655fddc8 266 const Handle(GeomAdaptor_HSurface)& aHS2,
267 Standard_Integer& iDegMin,
268 Standard_Integer& iNbIter,
269 Standard_Integer& iDegMax);
7fd59977 270
0fc4f2e2
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271static
272 void Tolerances(const Handle(GeomAdaptor_HSurface)& aHS1,
655fddc8 273 const Handle(GeomAdaptor_HSurface)& aHS2,
788cbaf4 274 Standard_Real& aTolTang);
0fc4f2e2 275
0fc4f2e2
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276static
277 Standard_Boolean SortTypes(const GeomAbs_SurfaceType aType1,
655fddc8 278 const GeomAbs_SurfaceType aType2);
0fc4f2e2
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279static
280 Standard_Integer IndexType(const GeomAbs_SurfaceType aType);
d10203e8 281
7fd59977 282//
4f189102
P
283static
284 Standard_Real MaxSquareDistance (const Standard_Real aT,
655fddc8 285 const Handle(Geom_Curve)& aC3D,
286 const Handle(Geom2d_Curve)& aC2D1,
287 const Handle(Geom2d_Curve)& aC2D2,
288 const Handle(GeomAdaptor_HSurface) myHS1,
289 const Handle(GeomAdaptor_HSurface) myHS2,
290 const TopoDS_Face& aF1,
291 const TopoDS_Face& aF2,
1e143abb 292 const Handle(IntTools_Context)& aCtx);
989341c5 293
294static
295 Standard_Boolean CheckPCurve(const Handle(Geom2d_Curve)& aPC,
296 const TopoDS_Face& aFace);
297
4f189102 298//
37b6f439 299static
300 Standard_Real FindMaxSquareDistance (const Standard_Real aA,
655fddc8 301 const Standard_Real aB,
302 const Standard_Real aEps,
303 const Handle(Geom_Curve)& aC3D,
304 const Handle(Geom2d_Curve)& aC2D1,
305 const Handle(Geom2d_Curve)& aC2D2,
306 const Handle(GeomAdaptor_HSurface)& myHS1,
307 const Handle(GeomAdaptor_HSurface)& myHS2,
308 const TopoDS_Face& aF1,
309 const TopoDS_Face& aF2,
1e143abb 310 const Handle(IntTools_Context)& aCtx);
37b6f439 311
7fd59977 312//=======================================================================
313//function :
314//purpose :
315//=======================================================================
4f189102 316IntTools_FaceFace::IntTools_FaceFace()
7fd59977 317{
3f16d970 318 myIsDone=Standard_False;
7fd59977 319 myTangentFaces=Standard_False;
320 //
321 myHS1 = new GeomAdaptor_HSurface ();
322 myHS2 = new GeomAdaptor_HSurface ();
323 myTolReached2d=0.;
324 myTolReached3d=0.;
325 SetParameters(Standard_True, Standard_True, Standard_True, 1.e-07);
4f189102
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326
327}
328//=======================================================================
329//function : SetContext
330//purpose :
331//=======================================================================
1e143abb 332void IntTools_FaceFace::SetContext(const Handle(IntTools_Context)& aContext)
4f189102
P
333{
334 myContext=aContext;
335}
336//=======================================================================
337//function : Context
338//purpose :
339//=======================================================================
1e143abb 340const Handle(IntTools_Context)& IntTools_FaceFace::Context()const
4f189102
P
341{
342 return myContext;
7fd59977 343}
344//=======================================================================
345//function : Face1
346//purpose :
347//=======================================================================
4f189102 348const TopoDS_Face& IntTools_FaceFace::Face1() const
7fd59977 349{
350 return myFace1;
351}
7fd59977 352//=======================================================================
353//function : Face2
354//purpose :
355//=======================================================================
4f189102 356const TopoDS_Face& IntTools_FaceFace::Face2() const
7fd59977 357{
358 return myFace2;
359}
7fd59977 360//=======================================================================
361//function : TangentFaces
362//purpose :
363//=======================================================================
4f189102 364Standard_Boolean IntTools_FaceFace::TangentFaces() const
7fd59977 365{
366 return myTangentFaces;
367}
368//=======================================================================
369//function : Points
370//purpose :
371//=======================================================================
4f189102 372const IntTools_SequenceOfPntOn2Faces& IntTools_FaceFace::Points() const
7fd59977 373{
374 return myPnts;
375}
376//=======================================================================
377//function : IsDone
378//purpose :
379//=======================================================================
4f189102 380Standard_Boolean IntTools_FaceFace::IsDone() const
7fd59977 381{
382 return myIsDone;
383}
384//=======================================================================
385//function : TolReached3d
386//purpose :
387//=======================================================================
4f189102 388Standard_Real IntTools_FaceFace::TolReached3d() const
7fd59977 389{
390 return myTolReached3d;
391}
392//=======================================================================
393//function : Lines
394//purpose : return lines of intersection
395//=======================================================================
4f189102 396const IntTools_SequenceOfCurves& IntTools_FaceFace::Lines() const
7fd59977 397{
4f189102
P
398 StdFail_NotDone_Raise_if
399 (!myIsDone,
788cbaf4 400 "IntTools_FaceFace::Lines() => myIntersector NOT DONE");
7fd59977 401 return mySeqOfCurve;
402}
7fd59977 403//=======================================================================
404//function : TolReached2d
405//purpose :
406//=======================================================================
4f189102 407Standard_Real IntTools_FaceFace::TolReached2d() const
7fd59977 408{
409 return myTolReached2d;
410}
411// =======================================================================
412// function: SetParameters
413//
414// =======================================================================
4f189102 415void IntTools_FaceFace::SetParameters(const Standard_Boolean ToApproxC3d,
655fddc8 416 const Standard_Boolean ToApproxC2dOnS1,
417 const Standard_Boolean ToApproxC2dOnS2,
418 const Standard_Real ApproximationTolerance)
7fd59977 419{
420 myApprox = ToApproxC3d;
421 myApprox1 = ToApproxC2dOnS1;
422 myApprox2 = ToApproxC2dOnS2;
423 myTolApprox = ApproximationTolerance;
424}
425//=======================================================================
426//function : SetList
427//purpose :
428//=======================================================================
7fd59977 429void IntTools_FaceFace::SetList(IntSurf_ListOfPntOn2S& aListOfPnts)
430{
431 myListOfPnts = aListOfPnts;
432}
788cbaf4 433
434
435static Standard_Boolean isTreatAnalityc(const TopoDS_Face& theF1,
436 const TopoDS_Face& theF2)
437{
438 const Standard_Real Tolang = 1.e-8;
439 const Standard_Real aTolF1=BRep_Tool::Tolerance(theF1);
440 const Standard_Real aTolF2=BRep_Tool::Tolerance(theF2);
441 const Standard_Real aTolSum = aTolF1 + aTolF2;
442 Standard_Real aHigh = 0.0;
443
444 const BRepAdaptor_Surface aBAS1(theF1), aBAS2(theF2);
445 const GeomAbs_SurfaceType aType1=aBAS1.GetType();
446 const GeomAbs_SurfaceType aType2=aBAS2.GetType();
447
448 gp_Pln aS1;
449 gp_Cylinder aS2;
450 if(aType1 == GeomAbs_Plane)
451 {
452 aS1=aBAS1.Plane();
453 }
454 else if(aType2 == GeomAbs_Plane)
455 {
456 aS1=aBAS2.Plane();
457 }
458 else
459 {
460 return Standard_True;
461 }
462
463 if(aType1 == GeomAbs_Cylinder)
464 {
465 aS2=aBAS1.Cylinder();
466 const Standard_Real VMin = aBAS1.FirstVParameter();
467 const Standard_Real VMax = aBAS1.LastVParameter();
468
469 if( Precision::IsNegativeInfinite(VMin) ||
470 Precision::IsPositiveInfinite(VMax))
471 return Standard_True;
472 else
473 aHigh = VMax - VMin;
474 }
475 else if(aType2 == GeomAbs_Cylinder)
476 {
477 aS2=aBAS2.Cylinder();
478
479 const Standard_Real VMin = aBAS2.FirstVParameter();
480 const Standard_Real VMax = aBAS2.LastVParameter();
481
482 if( Precision::IsNegativeInfinite(VMin) ||
483 Precision::IsPositiveInfinite(VMax))
484 return Standard_True;
485 else
486 aHigh = VMax - VMin;
487 }
488 else
489 {
490 return Standard_True;
491 }
492
493 IntAna_QuadQuadGeo inter;
494 inter.Perform(aS1,aS2,Tolang,aTolSum, aHigh);
495 if(inter.TypeInter() == IntAna_Ellipse)
496 {
497 const gp_Elips anEl = inter.Ellipse(1);
498 const Standard_Real aMajorR = anEl.MajorRadius();
499 const Standard_Real aMinorR = anEl.MinorRadius();
500
501 return (aMajorR < 100000.0 * aMinorR);
502 }
503 else
504 {
505 return inter.IsDone();
506 }
507}
7fd59977 508//=======================================================================
509//function : Perform
510//purpose : intersect surfaces of the faces
511//=======================================================================
59495dbe 512 void IntTools_FaceFace::Perform(const TopoDS_Face& aF1,
c002793b 513 const TopoDS_Face& aF2)
7fd59977 514{
788cbaf4 515 Standard_Boolean RestrictLine = Standard_False, hasCone = Standard_False;
516
4f189102 517 if (myContext.IsNull()) {
1e143abb 518 myContext=new IntTools_Context;
4f189102 519 }
788cbaf4 520
7fd59977 521 mySeqOfCurve.Clear();
7fd59977 522 myTolReached2d=0.;
523 myTolReached3d=0.;
7fd59977 524 myIsDone = Standard_False;
0fc4f2e2 525 myNbrestr=0;//?
788cbaf4 526
0fc4f2e2
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527 myFace1=aF1;
528 myFace2=aF2;
788cbaf4 529
530 const BRepAdaptor_Surface aBAS1(myFace1, Standard_False);
531 const BRepAdaptor_Surface aBAS2(myFace2, Standard_False);
532 GeomAbs_SurfaceType aType1=aBAS1.GetType();
533 GeomAbs_SurfaceType aType2=aBAS2.GetType();
534
535 const Standard_Boolean bReverse=SortTypes(aType1, aType2);
536 if (bReverse)
537 {
0fc4f2e2
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538 myFace1=aF2;
539 myFace2=aF1;
540 aType1=aBAS2.GetType();
541 aType2=aBAS1.GetType();
788cbaf4 542
543 if (myListOfPnts.Extent())
544 {
0fc4f2e2
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545 Standard_Real aU1,aV1,aU2,aV2;
546 IntSurf_ListIteratorOfListOfPntOn2S aItP2S;
547 //
548 aItP2S.Initialize(myListOfPnts);
788cbaf4 549 for (; aItP2S.More(); aItP2S.Next())
550 {
655fddc8 551 IntSurf_PntOn2S& aP2S=aItP2S.Value();
552 aP2S.Parameters(aU1,aV1,aU2,aV2);
553 aP2S.SetValue(aU2,aV2,aU1,aV1);
0fc4f2e2
P
554 }
555 }
2d2aa6f1 556 //
557 Standard_Boolean anAproxTmp = myApprox1;
558 myApprox1 = myApprox2;
559 myApprox2 = anAproxTmp;
0fc4f2e2 560 }
7fd59977 561
788cbaf4 562
563 const Handle(Geom_Surface) S1=BRep_Tool::Surface(myFace1);
564 const Handle(Geom_Surface) S2=BRep_Tool::Surface(myFace2);
565
566 const Standard_Real aTolF1=BRep_Tool::Tolerance(myFace1);
567 const Standard_Real aTolF2=BRep_Tool::Tolerance(myFace2);
568
569 Standard_Real TolArc = aTolF1 + aTolF2;
570 Standard_Real TolTang = TolArc;
571
572 const Standard_Boolean isFace1Quad = (aType1 == GeomAbs_Cylinder ||
573 aType1 == GeomAbs_Cone ||
574 aType1 == GeomAbs_Torus);
575
576 const Standard_Boolean isFace2Quad = (aType2 == GeomAbs_Cylinder ||
577 aType2 == GeomAbs_Cone ||
578 aType2 == GeomAbs_Torus);
579
a34f083b 580 if(aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
788cbaf4 581 Standard_Real umin, umax, vmin, vmax;
a34f083b 582 Standard_Real dU, dV;
583 //
0fc4f2e2 584 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
a34f083b 585 dU=0.1*(umax-umin);
586 dV=0.1*(vmax-vmin);
587 umin=umin-dU;
588 umax=umax+dU;
589 vmin=vmin-dV;
590 vmax=vmax+dV;
7fd59977 591 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
592 //
0fc4f2e2 593 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
a34f083b 594 dU=0.1*(umax-umin);
595 dV=0.1*(vmax-vmin);
596 umin=umin-dU;
597 umax=umax+dU;
598 vmin=vmin-dV;
599 vmax=vmax+dV;
7fd59977 600 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
a34f083b 601 //
7fd59977 602 Standard_Real TolAng = 1.e-8;
a34f083b 603 //
59495dbe 604 PerformPlanes(myHS1, myHS2, TolAng, TolTang, myApprox1, myApprox2,
a34f083b 605 mySeqOfCurve, myTangentFaces);
606 //
7fd59977 607 myIsDone = Standard_True;
4f189102 608
a34f083b 609 if(!myTangentFaces) {
788cbaf4 610 const Standard_Integer NbLinPP = mySeqOfCurve.Length();
a34f083b 611 if(NbLinPP) {
655fddc8 612 Standard_Real aTolFMax;
613 myTolReached3d = 1.e-7;
614 aTolFMax=Max(aTolF1, aTolF2);
a34f083b 615 if (aTolFMax>myTolReached3d) {
655fddc8 616 myTolReached3d=aTolFMax;
617 }
a34f083b 618 //
655fddc8 619 myTolReached2d = myTolReached3d;
788cbaf4 620
a34f083b 621 if (bReverse) {
655fddc8 622 Handle(Geom2d_Curve) aC2D1, aC2D2;
788cbaf4 623 const Standard_Integer aNbLin = mySeqOfCurve.Length();
a34f083b 624 for (Standard_Integer i = 1; i <= aNbLin; ++i) {
655fddc8 625 IntTools_Curve& aIC=mySeqOfCurve(i);
626 aC2D1=aIC.FirstCurve2d();
627 aC2D2=aIC.SecondCurve2d();
628 aIC.SetFirstCurve2d(aC2D2);
629 aIC.SetSecondCurve2d(aC2D1);
630 }
631 }
0fc4f2e2
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632 }
633 }
7fd59977 634 return;
0fc4f2e2 635 }//if(aType1==GeomAbs_Plane && aType2==GeomAbs_Plane){
788cbaf4 636
637 if ((aType1==GeomAbs_Plane) && isFace2Quad)
638 {
7fd59977 639 Standard_Real dU, dV;
788cbaf4 640
7fd59977 641 // F1
788cbaf4 642 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2 643 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
788cbaf4 644
7fd59977 645 dU=0.1*(umax-umin);
646 dV=0.1*(vmax-vmin);
647 umin=umin-dU;
648 umax=umax+dU;
649 vmin=vmin-dV;
650 vmax=vmax+dV;
651 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
652 // F2
0fc4f2e2
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653 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
654 CorrectSurfaceBoundaries(myFace2, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 655 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
656 //
657 if( aType2==GeomAbs_Cone ) {
658 TolArc = 0.0001;
7fd59977 659 hasCone = Standard_True;
660 }
661 }
788cbaf4 662 else if ((aType2==GeomAbs_Plane) && isFace1Quad)
663 {
7fd59977 664 Standard_Real dU, dV;
788cbaf4 665
7fd59977 666 //F1
788cbaf4 667 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2
P
668 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
669 CorrectSurfaceBoundaries(myFace1, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 670 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
671 // F2
0fc4f2e2 672 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
7fd59977 673 dU=0.1*(umax-umin);
674 dV=0.1*(vmax-vmin);
675 umin=umin-dU;
676 umax=umax+dU;
677 vmin=vmin-dV;
678 vmax=vmax+dV;
679 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
680 //
681 if( aType1==GeomAbs_Cone ) {
682 TolArc = 0.0001;
7fd59977 683 hasCone = Standard_True;
684 }
685 }
788cbaf4 686 else
687 {
688 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2 689 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
0fc4f2e2 690 CorrectSurfaceBoundaries(myFace1, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 691 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
0fc4f2e2 692 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
0fc4f2e2 693 CorrectSurfaceBoundaries(myFace2, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 694 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
695 }
788cbaf4 696
697 const Handle(IntTools_TopolTool) dom1 = new IntTools_TopolTool(myHS1);
698 const Handle(IntTools_TopolTool) dom2 = new IntTools_TopolTool(myHS2);
699
7fd59977 700 myLConstruct.Load(dom1, dom2, myHS1, myHS2);
788cbaf4 701
702
703 Tolerances(myHS1, myHS2, TolTang);
704
705 {
706 const Standard_Real UVMaxStep = 0.001;
707 const Standard_Real Deflection = (hasCone) ? 0.085 : 0.1;
59495dbe 708 myIntersector.SetTolerances(TolArc, TolTang, UVMaxStep, Deflection);
788cbaf4 709 }
710
7fd59977 711 if((myHS1->IsUClosed() && !myHS1->IsUPeriodic()) ||
712 (myHS1->IsVClosed() && !myHS1->IsVPeriodic()) ||
713 (myHS2->IsUClosed() && !myHS2->IsUPeriodic()) ||
788cbaf4 714 (myHS2->IsVClosed() && !myHS2->IsVPeriodic()))
715 {
7fd59977 716 RestrictLine = Standard_True;
717 }
718 //
788cbaf4 719 if((aType1 != GeomAbs_BSplineSurface) &&
59495dbe 720 (aType1 != GeomAbs_BezierSurface) &&
788cbaf4 721 (aType1 != GeomAbs_OtherSurface) &&
722 (aType2 != GeomAbs_BSplineSurface) &&
59495dbe 723 (aType2 != GeomAbs_BezierSurface) &&
788cbaf4 724 (aType2 != GeomAbs_OtherSurface))
725 {
7fd59977 726 RestrictLine = Standard_True;
788cbaf4 727
7fd59977 728 if ((aType1 == GeomAbs_Torus) ||
788cbaf4 729 (aType2 == GeomAbs_Torus))
730 {
7fd59977 731 myListOfPnts.Clear();
732 }
733 }
788cbaf4 734
7fd59977 735 //
788cbaf4 736 if(!RestrictLine)
737 {
7fd59977 738 TopExp_Explorer aExp;
788cbaf4 739 for(Standard_Integer i = 0; (!RestrictLine) && (i < 2); i++)
740 {
7fd59977 741 const TopoDS_Face& aF=(!i) ? myFace1 : myFace2;
742 aExp.Init(aF, TopAbs_EDGE);
788cbaf4 743 for(; aExp.More(); aExp.Next())
744 {
655fddc8 745 const TopoDS_Edge& aE=TopoDS::Edge(aExp.Current());
788cbaf4 746
747 if(BRep_Tool::Degenerated(aE))
748 {
655fddc8 749 RestrictLine = Standard_True;
750 break;
751 }
7fd59977 752 }
753 }
754 }
788cbaf4 755
756 const Standard_Boolean isGeomInt = isTreatAnalityc(aF1, aF2);
757 myIntersector.Perform(myHS1, dom1, myHS2, dom2, TolArc, TolTang,
758 myListOfPnts, RestrictLine, isGeomInt);
759
7fd59977 760 myIsDone = myIntersector.IsDone();
788cbaf4 761
762 if (myIsDone)
763 {
7fd59977 764 myTangentFaces=myIntersector.TangentFaces();
765 if (myTangentFaces) {
766 return;
767 }
768 //
769 if(RestrictLine) {
770 myListOfPnts.Clear(); // to use LineConstructor
771 }
772 //
788cbaf4 773 const Standard_Integer aNbLin = myIntersector.NbLines();
774 for (Standard_Integer i=1; i <= aNbLin; ++i) {
7fd59977 775 MakeCurve(i, dom1, dom2);
776 }
777 //
778 ComputeTolReached3d();
779 //
0fc4f2e2
P
780 if (bReverse) {
781 Handle(Geom2d_Curve) aC2D1, aC2D2;
782 //
788cbaf4 783 const Standard_Integer aNbLin=mySeqOfCurve.Length();
784 for (Standard_Integer i=1; i<=aNbLin; ++i)
785 {
655fddc8 786 IntTools_Curve& aIC=mySeqOfCurve(i);
787 aC2D1=aIC.FirstCurve2d();
788 aC2D2=aIC.SecondCurve2d();
789 aIC.SetFirstCurve2d(aC2D2);
790 aIC.SetSecondCurve2d(aC2D1);
0fc4f2e2
P
791 }
792 }
788cbaf4 793
0fc4f2e2 794 // Points
7fd59977 795 Standard_Real U1,V1,U2,V2;
796 IntTools_PntOnFace aPntOnF1, aPntOnF2;
0fc4f2e2 797 IntTools_PntOn2Faces aPntOn2Faces;
7fd59977 798 //
788cbaf4 799 const Standard_Integer aNbPnts = myIntersector.NbPnts();
800 for (Standard_Integer i=1; i <= aNbPnts; ++i)
801 {
7fd59977 802 const IntSurf_PntOn2S& aISPnt=myIntersector.Point(i).PntOn2S();
803 const gp_Pnt& aPnt=aISPnt.Value();
804 aISPnt.Parameters(U1,V1,U2,V2);
0fc4f2e2
P
805 aPntOnF1.Init(myFace1, aPnt, U1, V1);
806 aPntOnF2.Init(myFace2, aPnt, U2, V2);
d10203e8 807 //
788cbaf4 808 if (!bReverse)
809 {
655fddc8 810 aPntOn2Faces.SetP1(aPntOnF1);
811 aPntOn2Faces.SetP2(aPntOnF2);
0fc4f2e2 812 }
788cbaf4 813 else
814 {
655fddc8 815 aPntOn2Faces.SetP2(aPntOnF1);
816 aPntOn2Faces.SetP1(aPntOnF2);
0fc4f2e2 817 }
788cbaf4 818
7fd59977 819 myPnts.Append(aPntOn2Faces);
820 }
7fd59977 821 }
822}
788cbaf4 823
7fd59977 824//=======================================================================
825//function :ComputeTolReached3d
826//purpose :
827//=======================================================================
828 void IntTools_FaceFace::ComputeTolReached3d()
829{
128dba6f 830 Standard_Boolean bCase1;
831 Standard_Integer aNbLin, i;
7fd59977 832 GeomAbs_SurfaceType aType1, aType2;
833 //
834 aNbLin=myIntersector.NbLines();
37b6f439 835 if (!aNbLin) {
836 return;
837 }
838 //
7fd59977 839 aType1=myHS1->Surface().GetType();
840 aType2=myHS2->Surface().GetType();
841 //
128dba6f 842 bCase1=((aType1==GeomAbs_Plane && aType2==GeomAbs_SurfaceOfExtrusion) ||
4abae870 843 (aType2==GeomAbs_Plane && aType1==GeomAbs_SurfaceOfExtrusion));
128dba6f 844 //
4f189102
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845 if (aType1==GeomAbs_Cylinder && aType2==GeomAbs_Cylinder) {
846 if (aNbLin==2){
847 Handle(IntPatch_Line) aIL1, aIL2;
848 IntPatch_IType aTL1, aTL2;
7fd59977 849 //
4f189102
P
850 aIL1=myIntersector.Line(1);
851 aIL2=myIntersector.Line(2);
852 aTL1=aIL1->ArcType();
853 aTL2=aIL2->ArcType();
854 if (aTL1==IntPatch_Lin && aTL2==IntPatch_Lin) {
655fddc8 855 Standard_Real aD, aDTresh, dTol;
856 gp_Lin aL1, aL2;
857 //
858 dTol=1.e-8;
859 aDTresh=1.5e-6;
860 //
861 aL1=Handle(IntPatch_GLine)::DownCast(aIL1)->Line();
862 aL2=Handle(IntPatch_GLine)::DownCast(aIL2)->Line();
863 aD=aL1.Distance(aL2);
864 aD=0.5*aD;
865 if (aD<aDTresh) {
866 myTolReached3d=aD+dTol;
867 }
868 return;
7fd59977 869 }
870 }
4f189102 871 //ZZ
37b6f439 872 if (aNbLin) {// Check the distances
128dba6f 873 Standard_Integer aNbP, j ;
575aec54 874 Standard_Real aT1, aT2, dT, aD2, aD2Max, aEps, aT11, aT12;
4f189102
P
875 //
876 aD2Max=0.;
0c5acd27 877 aNbP=10;
4f189102
P
878 aNbLin=mySeqOfCurve.Length();
879 //
880 for (i=1; i<=aNbLin; ++i) {
655fddc8 881 const IntTools_Curve& aIC=mySeqOfCurve(i);
882 const Handle(Geom_Curve)& aC3D=aIC.Curve();
883 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
884 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
885 //
886 if (aC3D.IsNull()) {
887 continue;
888 }
889 const Handle(Geom_BSplineCurve)& aBC=
890 Handle(Geom_BSplineCurve)::DownCast(aC3D);
891 if (aBC.IsNull()) {
892 continue;
893 }
894 //
895 aT1=aBC->FirstParameter();
896 aT2=aBC->LastParameter();
897 //
898 aEps=0.01*(aT2-aT1);
899 dT=(aT2-aT1)/aNbP;
900 for (j=1; j<aNbP; ++j) {
901 aT11=aT1+j*dT;
902 aT12=aT11+dT;
903 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
904 myHS1, myHS2, myFace1, myFace2, myContext);
905 if (aD2>aD2Max) {
906 aD2Max=aD2;
907 }
908 }
4f189102
P
909 }//for (i=1; i<=aNbLin; ++i) {
910 //
911 myTolReached3d=sqrt(aD2Max);
37b6f439 912 }// if (aNbLin)
4f189102
P
913 }// if (aType1==GeomAbs_Cylinder && aType2==GeomAbs_Cylinder) {
914 //
0fc4f2e2 915 //904/G3 f
4f189102 916 else if (aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
7fd59977 917 Standard_Real aTolF1, aTolF2, aTolFMax, aTolTresh;
918 //
919 aTolTresh=1.e-7;
920 //
921 aTolF1 = BRep_Tool::Tolerance(myFace1);
922 aTolF2 = BRep_Tool::Tolerance(myFace2);
923 aTolFMax=Max(aTolF1, aTolF2);
924 //
925 if (aTolFMax>aTolTresh) {
926 myTolReached3d=aTolFMax;
927 }
4f189102 928 }//if (aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
0fc4f2e2 929 //t
7fd59977 930 //IFV Bug OCC20297
4f189102 931 else if((aType1 == GeomAbs_Cylinder && aType2 == GeomAbs_Plane) ||
655fddc8 932 (aType2 == GeomAbs_Cylinder && aType1 == GeomAbs_Plane)) {
7fd59977 933 if(aNbLin == 1) {
934 const Handle(IntPatch_Line)& aIL1 = myIntersector.Line(1);
935 if(aIL1->ArcType() == IntPatch_Circle) {
655fddc8 936 gp_Circ aCir = Handle(IntPatch_GLine)::DownCast(aIL1)->Circle();
937 gp_XYZ aCirDir = aCir.Axis().Direction().XYZ();
938 gp_XYZ aPlDir;
939 gp_Pln aPln;
940 if(aType1 == GeomAbs_Plane) {
941 aPln = myHS1->Surface().Plane();
942 }
943 else {
944 aPln = myHS2->Surface().Plane();
945 }
946 aPlDir = aPln.Axis().Direction().XYZ();
947 Standard_Real cs = aCirDir*aPlDir;
948 if(cs < 0.) aPlDir.Reverse();
949 Standard_Real eps = 1.e-14;
950 if(!aPlDir.IsEqual(aCirDir, eps)) {
951 Standard_Integer aNbP = 11;
952 Standard_Real dt = 2.*M_PI / (aNbP - 1), t;
953 for(t = 0.; t < 2.*M_PI; t += dt) {
954 Standard_Real d = aPln.Distance(ElCLib::Value(t, aCir));
955 if(myTolReached3d < d) myTolReached3d = d;
956 }
957 myTolReached3d *= 1.1;
958 }
7fd59977 959 } //aIL1->ArcType() == IntPatch_Circle
960 } //aNbLin == 1
4f189102 961 } // aType1 == GeomAbs_Cylinder && aType2 == GeomAbs_Plane)
7fd59977 962 //End IFV Bug OCC20297
0fc4f2e2 963 //
4f189102 964 else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Torus) ||
655fddc8 965 (aType2==GeomAbs_Plane && aType1==GeomAbs_Torus)) {
0fc4f2e2
P
966 aNbLin=mySeqOfCurve.Length();
967 if (aNbLin!=1) {
968 return;
969 }
970 //
128dba6f 971 Standard_Integer aNbP;
0fc4f2e2
P
972 Standard_Real aT, aT1, aT2, dT, aUT, aVT, aUP, aVP;
973 Standard_Real aDP, aDT, aDmax;
974 gp_Pln aPln;
975 gp_Torus aTorus;
976 gp_Pnt aP, aPP, aPT;
977 //
978 const IntTools_Curve& aIC=mySeqOfCurve(1);
979 const Handle(Geom_Curve)& aC3D=aIC.Curve();
4f189102
P
980 const Handle(Geom_BSplineCurve)& aBS=
981 Handle(Geom_BSplineCurve)::DownCast(aC3D);
0fc4f2e2
P
982 if (aBS.IsNull()) {
983 return;
984 }
985 //
986 aT1=aBS->FirstParameter();
987 aT2=aBS->LastParameter();
988 //
989 aPln =(aType1==GeomAbs_Plane) ? myHS1->Plane() : myHS2->Plane();
990 aTorus=(aType1==GeomAbs_Plane) ? myHS2->Torus() : myHS1->Torus();
991 //
992 aDmax=-1.;
993 aNbP=11;
994 dT=(aT2-aT1)/(aNbP-1);
995 for (i=0; i<aNbP; ++i) {
996 aT=aT1+i*dT;
997 if (i==aNbP-1) {
655fddc8 998 aT=aT2;
0fc4f2e2
P
999 }
1000 //
1001 aC3D->D0(aT, aP);
1002 //
1003 ElSLib::Parameters(aPln, aP, aUP, aVP);
1004 aPP=ElSLib::Value(aUP, aVP, aPln);
1005 aDP=aP.SquareDistance(aPP);
1006 if (aDP>aDmax) {
655fddc8 1007 aDmax=aDP;
0fc4f2e2
P
1008 }
1009 //
1010 ElSLib::Parameters(aTorus, aP, aUT, aVT);
1011 aPT=ElSLib::Value(aUT, aVT, aTorus);
1012 aDT=aP.SquareDistance(aPT);
1013 if (aDT>aDmax) {
655fddc8 1014 aDmax=aDT;
0fc4f2e2
P
1015 }
1016 }
1017 //
1018 if (aDmax > myTolReached3d*myTolReached3d) {
1019 myTolReached3d=sqrt(aDmax);
1020 myTolReached3d=1.1*myTolReached3d;
1021 }
1022 }// if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Torus) ||
a9f7b6b5 1023 //
4f189102 1024 else if ((aType1==GeomAbs_SurfaceOfRevolution && aType2==GeomAbs_Cylinder) ||
655fddc8 1025 (aType2==GeomAbs_SurfaceOfRevolution && aType1==GeomAbs_Cylinder)) {
128dba6f 1026 Standard_Integer j, aNbP;
4f189102 1027 Standard_Real aT, aT1, aT2, dT, aD2max, aD2;
d10203e8
P
1028 //
1029 aNbLin=mySeqOfCurve.Length();
4f189102 1030 aD2max=0.;
d10203e8
P
1031 aNbP=11;
1032 //
1033 for (i=1; i<=aNbLin; ++i) {
1034 const IntTools_Curve& aIC=mySeqOfCurve(i);
1035 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1036 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1037 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1038 //
1039 if (aC3D.IsNull()) {
655fddc8 1040 continue;
d10203e8 1041 }
4f189102 1042 const Handle(Geom_BSplineCurve)& aBC=
655fddc8 1043 Handle(Geom_BSplineCurve)::DownCast(aC3D);
d10203e8 1044 if (aBC.IsNull()) {
655fddc8 1045 return;
d10203e8
P
1046 }
1047 //
1048 aT1=aBC->FirstParameter();
1049 aT2=aBC->LastParameter();
1050 //
1051 dT=(aT2-aT1)/(aNbP-1);
1052 for (j=0; j<aNbP; ++j) {
655fddc8 1053 aT=aT1+j*dT;
1054 if (j==aNbP-1) {
1055 aT=aT2;
1056 }
1057 //
1058 aD2=MaxSquareDistance(aT, aC3D, aC2D1, aC2D2,
1059 myHS1, myHS2, myFace1, myFace2, myContext);
1060 if (aD2>aD2max) {
1061 aD2max=aD2;
1062 }
d10203e8 1063 }//for (j=0; j<aNbP; ++j) {
37b6f439 1064
d10203e8
P
1065 }//for (i=1; i<=aNbLin; ++i) {
1066 //
4f189102
P
1067 aD2=myTolReached3d*myTolReached3d;
1068 if (aD2max > aD2) {
1069 myTolReached3d=sqrt(aD2max);
d10203e8 1070 }
a9f7b6b5 1071 }//if((aType1==GeomAbs_SurfaceOfRevolution ...
0c5acd27 1072 else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Sphere) ||
655fddc8 1073 (aType2==GeomAbs_Plane && aType1==GeomAbs_Sphere)) {
128dba6f 1074 Standard_Integer j, aNbP;
9c9a29ea 1075 Standard_Real aT1, aT2, dT, aD2max, aD2, aEps, aT11, aT12;
0c5acd27 1076 //
1077 aNbLin=mySeqOfCurve.Length();
1078 aD2max=0.;
1079 aNbP=10;
1080 //
1081 for (i=1; i<=aNbLin; ++i) {
1082 const IntTools_Curve& aIC=mySeqOfCurve(i);
1083 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1084 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1085 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1086 //
1087 const Handle(Geom2d_BSplineCurve)& aBC2D1=
655fddc8 1088 Handle(Geom2d_BSplineCurve)::DownCast(aC2D1);
0c5acd27 1089 const Handle(Geom2d_BSplineCurve)& aBC2D2=
655fddc8 1090 Handle(Geom2d_BSplineCurve)::DownCast(aC2D2);
0c5acd27 1091 //
1092 if (aBC2D1.IsNull() && aBC2D2.IsNull()) {
655fddc8 1093 return;
0c5acd27 1094 }
1095 //
1096 if (!aBC2D1.IsNull()) {
655fddc8 1097 aT1=aBC2D1->FirstParameter();
1098 aT2=aBC2D1->LastParameter();
0c5acd27 1099 }
1100 else {
655fddc8 1101 aT1=aBC2D2->FirstParameter();
1102 aT2=aBC2D2->LastParameter();
0c5acd27 1103 }
1104 //
1105 aEps=0.01*(aT2-aT1);
9c9a29ea 1106 dT=(aT2-aT1)/aNbP;
0c5acd27 1107 for (j=0; j<aNbP; ++j) {
655fddc8 1108 aT11=aT1+j*dT;
1109 aT12=aT11+dT;
1110 if (j==aNbP-1) {
1111 aT12=aT2;
1112 }
1113 //
1114 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
1115 myHS1, myHS2, myFace1, myFace2, myContext);
1116 if (aD2>aD2max) {
1117 aD2max=aD2;
1118 }
0c5acd27 1119 }//for (j=0; j<aNbP; ++j) {
1120
1121 }//for (i=1; i<=aNbLin; ++i) {
1122 //
1123 aD2=myTolReached3d*myTolReached3d;
1124 if (aD2max > aD2) {
1125 myTolReached3d=sqrt(aD2max);
1126 }
1127 }//else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Sphere) ...
128dba6f 1128 else if (!myApprox || bCase1) {
1129 //else if (!myApprox) {
1130 Standard_Integer aNbP, j;
4e57c75e 1131 Standard_Real aT1, aT2, dT, aD2, aD2Max, aEps, aT11, aT12;
1132 //
1133 aD2Max=0.;
1134 aNbLin=mySeqOfCurve.Length();
1135 //
1136 for (i=1; i<=aNbLin; ++i) {
1137 const IntTools_Curve& aIC=mySeqOfCurve(i);
1138 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1139 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1140 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1141 //
1142 if (aC3D.IsNull()) {
4abae870 1143 continue;
59495dbe 1144}
4e57c75e 1145 const Handle(Geom_BSplineCurve)& aBC=
4abae870 1146 Handle(Geom_BSplineCurve)::DownCast(aC3D);
4e57c75e 1147 if (aBC.IsNull()) {
4abae870 1148 continue;
4e57c75e 1149 }
1150 //
1151 aT1=aBC->FirstParameter();
1152 aT2=aBC->LastParameter();
1153 //
1154 aEps=0.0001*(aT2-aT1);
1155 aNbP=11;
1156 dT=(aT2-aT1)/aNbP;
1157 for (j=1; j<aNbP-1; ++j) {
4abae870 1158 aT11=aT1+j*dT;
1159 aT12=aT11+dT;
1160 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
1161 myHS1, myHS2, myFace1, myFace2, myContext);
1162 if (aD2>aD2Max) {
1163 aD2Max=aD2;
1164 }
4e57c75e 1165 }
1166 }//for (i=1; i<=aNbLin; ++i) {
1167 myTolReached3d=sqrt(aD2Max);
1168 }
7fd59977 1169}
1170//=======================================================================
1171//function : MakeCurve
1172//purpose :
1173//=======================================================================
1174 void IntTools_FaceFace::MakeCurve(const Standard_Integer Index,
655fddc8 1175 const Handle(Adaptor3d_TopolTool)& dom1,
1176 const Handle(Adaptor3d_TopolTool)& dom2)
7fd59977 1177{
4abae870 1178 Standard_Boolean bDone, rejectSurface, reApprox, bAvoidLineConstructor;
1179 Standard_Boolean ok, bPCurvesOk;
7fd59977 1180 Standard_Integer i, j, aNbParts;
1181 Standard_Real fprm, lprm;
1182 Standard_Real Tolpc;
1183 Handle(IntPatch_Line) L;
1184 IntPatch_IType typl;
1185 Handle(Geom_Curve) newc;
1186 //
1187 const Standard_Real TOLCHECK =0.0000001;
1188 const Standard_Real TOLANGCHECK=0.1;
1189 //
1190 rejectSurface = Standard_False;
1191 reApprox = Standard_False;
989341c5 1192 //
1193 bPCurvesOk = Standard_True;
59495dbe 1194
1195 reapprox:;
1196
7fd59977 1197 Tolpc = myTolApprox;
1198 bAvoidLineConstructor = Standard_False;
1199 L = myIntersector.Line(Index);
1200 typl = L->ArcType();
1201 //
1202 if(typl==IntPatch_Walking) {
1203 Handle(IntPatch_Line) anewL;
1204 //
1205 const Handle(IntPatch_WLine)& aWLine=
1206 Handle(IntPatch_WLine)::DownCast(L);
4abae870 1207 //DumpWLine(aWLine);
1208
7fd59977 1209 anewL = ComputePurgedWLine(aWLine);
1210 if(anewL.IsNull()) {
1211 return;
1212 }
1213 L = anewL;
4abae870 1214
1215 //const Handle(IntPatch_WLine)& aWLineX = Handle(IntPatch_WLine)::DownCast(L);
1216 //DumpWLine(aWLineX);
1217
7fd59977 1218 //
1219 if(!myListOfPnts.IsEmpty()) {
1220 bAvoidLineConstructor = Standard_True;
1221 }
1222
1223 Standard_Integer nbp = aWLine->NbPnts();
1224 const IntSurf_PntOn2S& p1 = aWLine->Point(1);
1225 const IntSurf_PntOn2S& p2 = aWLine->Point(nbp);
1226
1227 const gp_Pnt& P1 = p1.Value();
1228 const gp_Pnt& P2 = p2.Value();
1229
1230 if(P1.SquareDistance(P2) < 1.e-14) {
1231 bAvoidLineConstructor = Standard_False;
1232 }
7fd59977 1233 }
1234 //
1235 // Line Constructor
1236 if(!bAvoidLineConstructor) {
1237 myLConstruct.Perform(L);
1238 //
1239 bDone=myLConstruct.IsDone();
1240 aNbParts=myLConstruct.NbParts();
1241 if (!bDone|| !aNbParts) {
1242 return;
1243 }
1244 }
1245 // Do the Curve
59495dbe 1246
1247
7fd59977 1248 typl=L->ArcType();
1249 switch (typl) {
59495dbe 1250 //########################################
1251 // Line, Parabola, Hyperbola
1252 //########################################
7fd59977 1253 case IntPatch_Lin:
1254 case IntPatch_Parabola:
1255 case IntPatch_Hyperbola: {
1256 if (typl == IntPatch_Lin) {
1257 newc =
655fddc8 1258 new Geom_Line (Handle(IntPatch_GLine)::DownCast(L)->Line());
7fd59977 1259 }
1260
1261 else if (typl == IntPatch_Parabola) {
1262 newc =
655fddc8 1263 new Geom_Parabola(Handle(IntPatch_GLine)::DownCast(L)->Parabola());
7fd59977 1264 }
59495dbe 1265
7fd59977 1266 else if (typl == IntPatch_Hyperbola) {
1267 newc =
655fddc8 1268 new Geom_Hyperbola (Handle(IntPatch_GLine)::DownCast(L)->Hyperbola());
7fd59977 1269 }
1270 //
1271 // myTolReached3d
1272 if (typl == IntPatch_Lin) {
1273 TolR3d (myFace1, myFace2, myTolReached3d);
1274 }
1275 //
1276 aNbParts=myLConstruct.NbParts();
1277 for (i=1; i<=aNbParts; i++) {
1278 myLConstruct.Part(i, fprm, lprm);
59495dbe 1279
7fd59977 1280 if (!Precision::IsNegativeInfinite(fprm) &&
655fddc8 1281 !Precision::IsPositiveInfinite(lprm)) {
1282 //
1283 IntTools_Curve aCurve;
1284 //
1285 Handle(Geom_TrimmedCurve) aCT3D=new Geom_TrimmedCurve(newc, fprm, lprm);
1286 aCurve.SetCurve(aCT3D);
1287 if (typl == IntPatch_Parabola) {
1288 Standard_Real aTolF1, aTolF2, aTolBase;
1289
1290 aTolF1 = BRep_Tool::Tolerance(myFace1);
1291 aTolF2 = BRep_Tool::Tolerance(myFace2);
1292 aTolBase=aTolF1+aTolF2;
1293 myTolReached3d=IntTools_Tools::CurveTolerance(aCT3D, aTolBase);
1294 }
1295 //
1296 aCurve.SetCurve(new Geom_TrimmedCurve(newc, fprm, lprm));
1297 if(myApprox1) {
1298 Handle (Geom2d_Curve) C2d;
1299 BuildPCurves(fprm, lprm, Tolpc, myHS1->ChangeSurface().Surface(), newc, C2d);
1300 if(Tolpc>myTolReached2d || myTolReached2d==0.) {
1301 myTolReached2d=Tolpc;
1302 }
1303 //
1304 aCurve.SetFirstCurve2d(new Geom2d_TrimmedCurve(C2d,fprm,lprm));
1305 }
1306 else {
1307 Handle(Geom2d_BSplineCurve) H1;
1308 //
1309 aCurve.SetFirstCurve2d(H1);
1310 }
1311
1312 if(myApprox2) {
1313 Handle (Geom2d_Curve) C2d;
1314 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1315 if(Tolpc>myTolReached2d || myTolReached2d==0.) {
1316 myTolReached2d=Tolpc;
1317 }
1318 //
1319 aCurve.SetSecondCurve2d(new Geom2d_TrimmedCurve(C2d,fprm,lprm));
1320 }
1321 else {
1322 Handle(Geom2d_BSplineCurve) H1;
1323 //
1324 aCurve.SetSecondCurve2d(H1);
1325 }
1326 mySeqOfCurve.Append(aCurve);
94218044 1327 } // end of if (!Precision::IsNegativeInfinite(fprm) && !Precision::IsPositiveInfinite(lprm))
7fd59977 1328 else {
655fddc8 1329 // on regarde si on garde
1330 //
1331 Standard_Boolean bFNIt, bLPIt;
1332 Standard_Real aTestPrm, dT=100.;
1333
1334 bFNIt=Precision::IsNegativeInfinite(fprm);
1335 bLPIt=Precision::IsPositiveInfinite(lprm);
1336
1337 aTestPrm=0.;
1338
1339 if (bFNIt && !bLPIt) {
1340 aTestPrm=lprm-dT;
1341 }
1342 else if (!bFNIt && bLPIt) {
1343 aTestPrm=fprm+dT;
1344 }
1345
1346 gp_Pnt ptref(newc->Value(aTestPrm));
1347 //
94218044 1348 GeomAbs_SurfaceType typS1 = myHS1->GetType();
1349 GeomAbs_SurfaceType typS2 = myHS2->GetType();
1350 if( typS1 == GeomAbs_SurfaceOfExtrusion ||
1351 typS1 == GeomAbs_OffsetSurface ||
1352 typS1 == GeomAbs_SurfaceOfRevolution ||
1353 typS2 == GeomAbs_SurfaceOfExtrusion ||
1354 typS2 == GeomAbs_OffsetSurface ||
1355 typS2 == GeomAbs_SurfaceOfRevolution)
1356 {
1357 Handle(Geom2d_BSplineCurve) H1;
1358 mySeqOfCurve.Append(IntTools_Curve(newc, H1, H1));
1359 continue;
1360 }
1361
655fddc8 1362 Standard_Real u1, v1, u2, v2, Tol;
1363
1364 Tol = Precision::Confusion();
1365 Parameters(myHS1, myHS2, ptref, u1, v1, u2, v2);
1366 ok = (dom1->Classify(gp_Pnt2d(u1, v1), Tol) != TopAbs_OUT);
1367 if(ok) {
1368 ok = (dom2->Classify(gp_Pnt2d(u2,v2),Tol) != TopAbs_OUT);
1369 }
1370 if (ok) {
1371 Handle(Geom2d_BSplineCurve) H1;
1372 mySeqOfCurve.Append(IntTools_Curve(newc, H1, H1));
1373 }
7fd59977 1374 }
1375 }// end of for (i=1; i<=myLConstruct.NbParts(); i++)
1376 }// case IntPatch_Lin: case IntPatch_Parabola: case IntPatch_Hyperbola:
59495dbe 1377 break;
7fd59977 1378
59495dbe 1379 //########################################
1380 // Circle and Ellipse
1381 //########################################
7fd59977 1382 case IntPatch_Circle:
1383 case IntPatch_Ellipse: {
1384
1385 if (typl == IntPatch_Circle) {
1386 newc = new Geom_Circle
655fddc8 1387 (Handle(IntPatch_GLine)::DownCast(L)->Circle());
7fd59977 1388 }
1389 else { //IntPatch_Ellipse
1390 newc = new Geom_Ellipse
655fddc8 1391 (Handle(IntPatch_GLine)::DownCast(L)->Ellipse());
7fd59977 1392 }
1393 //
1394 // myTolReached3d
1395 TolR3d (myFace1, myFace2, myTolReached3d);
1396 //
1397 aNbParts=myLConstruct.NbParts();
1398 //
1399 Standard_Real aPeriod, aNul;
1400 TColStd_SequenceOfReal aSeqFprm, aSeqLprm;
59495dbe 1401
7fd59977 1402 aNul=0.;
c6541a0c 1403 aPeriod=M_PI+M_PI;
7fd59977 1404
1405 for (i=1; i<=aNbParts; i++) {
1406 myLConstruct.Part(i, fprm, lprm);
1407
1408 if (fprm < aNul && lprm > aNul) {
655fddc8 1409 // interval that goes through 0. is divided on two intervals;
1410 while (fprm<aNul || fprm>aPeriod) fprm=fprm+aPeriod;
1411 while (lprm<aNul || lprm>aPeriod) lprm=lprm+aPeriod;
1412 //
1413 if((aPeriod - fprm) > Tolpc) {
1414 aSeqFprm.Append(fprm);
1415 aSeqLprm.Append(aPeriod);
1416 }
1417 else {
1418 gp_Pnt P1 = newc->Value(fprm);
1419 gp_Pnt P2 = newc->Value(aPeriod);
1420 Standard_Real aTolDist = BRep_Tool::Tolerance(myFace1) + BRep_Tool::Tolerance(myFace2);
1421 aTolDist = (myTolReached3d > aTolDist) ? myTolReached3d : aTolDist;
1422
1423 if(P1.Distance(P2) > aTolDist) {
1424 Standard_Real anewpar = fprm;
94218044 1425
4abae870 1426 if(ParameterOutOfBoundary(fprm, newc, myFace1, myFace2,
1427 lprm, Standard_False, anewpar, myContext)) {
655fddc8 1428 fprm = anewpar;
1429 }
1430 aSeqFprm.Append(fprm);
1431 aSeqLprm.Append(aPeriod);
1432 }
1433 }
1434
1435 //
1436 if((lprm - aNul) > Tolpc) {
1437 aSeqFprm.Append(aNul);
1438 aSeqLprm.Append(lprm);
1439 }
1440 else {
1441 gp_Pnt P1 = newc->Value(aNul);
1442 gp_Pnt P2 = newc->Value(lprm);
1443 Standard_Real aTolDist = BRep_Tool::Tolerance(myFace1) + BRep_Tool::Tolerance(myFace2);
1444 aTolDist = (myTolReached3d > aTolDist) ? myTolReached3d : aTolDist;
1445
1446 if(P1.Distance(P2) > aTolDist) {
1447 Standard_Real anewpar = lprm;
94218044 1448
4abae870 1449 if(ParameterOutOfBoundary(lprm, newc, myFace1, myFace2,
1450 fprm, Standard_True, anewpar, myContext)) {
655fddc8 1451 lprm = anewpar;
1452 }
1453 aSeqFprm.Append(aNul);
1454 aSeqLprm.Append(lprm);
1455 }
1456 }
7fd59977 1457 }
1458 else {
655fddc8 1459 // usual interval
1460 aSeqFprm.Append(fprm);
1461 aSeqLprm.Append(lprm);
7fd59977 1462 }
1463 }
59495dbe 1464
7fd59977 1465 //
1466 aNbParts=aSeqFprm.Length();
1467 for (i=1; i<=aNbParts; i++) {
1468 fprm=aSeqFprm(i);
1469 lprm=aSeqLprm(i);
1470 //
1471 Standard_Real aRealEpsilon=RealEpsilon();
c6541a0c 1472 if (Abs(fprm) > aRealEpsilon || Abs(lprm-2.*M_PI) > aRealEpsilon) {
655fddc8 1473 //==============================================
1474 ////
1475 IntTools_Curve aCurve;
1476 Handle(Geom_TrimmedCurve) aTC3D=new Geom_TrimmedCurve(newc,fprm,lprm);
1477 aCurve.SetCurve(aTC3D);
1478 fprm=aTC3D->FirstParameter();
1479 lprm=aTC3D->LastParameter ();
1480 ////
1481 if (typl == IntPatch_Circle || typl == IntPatch_Ellipse) {////
1482 if(myApprox1) {
1483 Handle (Geom2d_Curve) C2d;
1484 BuildPCurves(fprm,lprm,Tolpc,myHS1->ChangeSurface().Surface(),newc,C2d);
1485 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1486 myTolReached2d=Tolpc;
1487 }
1488 //
1489 aCurve.SetFirstCurve2d(C2d);
1490 }
1491 else { ////
1492 Handle(Geom2d_BSplineCurve) H1;
1493 aCurve.SetFirstCurve2d(H1);
1494 }
1495
1496
1497 if(myApprox2) {
1498 Handle (Geom2d_Curve) C2d;
1499 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1500 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1501 myTolReached2d=Tolpc;
1502 }
1503 //
1504 aCurve.SetSecondCurve2d(C2d);
1505 }
1506 else {
1507 Handle(Geom2d_BSplineCurve) H1;
1508 aCurve.SetSecondCurve2d(H1);
1509 }
1510 }
1511
1512 else {
1513 Handle(Geom2d_BSplineCurve) H1;
1514 aCurve.SetFirstCurve2d(H1);
1515 aCurve.SetSecondCurve2d(H1);
1516 }
1517 mySeqOfCurve.Append(aCurve);
1518 //==============================================
c6541a0c 1519 } //if (Abs(fprm) > RealEpsilon() || Abs(lprm-2.*M_PI) > RealEpsilon())
7fd59977 1520
1521 else {
655fddc8 1522 // on regarde si on garde
1523 //
1524 if (aNbParts==1) {
1525// if (Abs(fprm) < RealEpsilon() && Abs(lprm-2.*M_PI) < RealEpsilon()) {
1526 if (Abs(fprm) <= aRealEpsilon && Abs(lprm-2.*M_PI) <= aRealEpsilon) {
1527 IntTools_Curve aCurve;
1528 Handle(Geom_TrimmedCurve) aTC3D=new Geom_TrimmedCurve(newc,fprm,lprm);
1529 aCurve.SetCurve(aTC3D);
1530 fprm=aTC3D->FirstParameter();
1531 lprm=aTC3D->LastParameter ();
1532
1533 if(myApprox1) {
1534 Handle (Geom2d_Curve) C2d;
1535 BuildPCurves(fprm,lprm,Tolpc,myHS1->ChangeSurface().Surface(),newc,C2d);
1536 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1537 myTolReached2d=Tolpc;
1538 }
1539 //
1540 aCurve.SetFirstCurve2d(C2d);
1541 }
1542 else { ////
1543 Handle(Geom2d_BSplineCurve) H1;
1544 aCurve.SetFirstCurve2d(H1);
1545 }
1546
1547 if(myApprox2) {
1548 Handle (Geom2d_Curve) C2d;
1549 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1550 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1551 myTolReached2d=Tolpc;
1552 }
1553 //
1554 aCurve.SetSecondCurve2d(C2d);
1555 }
1556 else {
1557 Handle(Geom2d_BSplineCurve) H1;
1558 aCurve.SetSecondCurve2d(H1);
1559 }
1560 mySeqOfCurve.Append(aCurve);
1561 break;
1562 }
1563 }
1564 //
1565 Standard_Real aTwoPIdiv17, u1, v1, u2, v2, Tol;
1566
1567 aTwoPIdiv17=2.*M_PI/17.;
1568
1569 for (j=0; j<=17; j++) {
1570 gp_Pnt ptref (newc->Value (j*aTwoPIdiv17));
1571 Tol = Precision::Confusion();
1572
1573 Parameters(myHS1, myHS2, ptref, u1, v1, u2, v2);
1574 ok = (dom1->Classify(gp_Pnt2d(u1,v1),Tol) != TopAbs_OUT);
1575 if(ok) {
1576 ok = (dom2->Classify(gp_Pnt2d(u2,v2),Tol) != TopAbs_OUT);
1577 }
1578 if (ok) {
1579 IntTools_Curve aCurve;
1580 aCurve.SetCurve(newc);
1581 //==============================================
1582 if (typl == IntPatch_Circle || typl == IntPatch_Ellipse) {
1583
1584 if(myApprox1) {
1585 Handle (Geom2d_Curve) C2d;
1586 BuildPCurves(fprm, lprm, Tolpc, myHS1->ChangeSurface().Surface(), newc, C2d);
1587 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1588 myTolReached2d=Tolpc;
1589 }
1590 //
1591 aCurve.SetFirstCurve2d(C2d);
1592 }
1593 else {
1594 Handle(Geom2d_BSplineCurve) H1;
1595 aCurve.SetFirstCurve2d(H1);
1596 }
1597
1598 if(myApprox2) {
1599 Handle (Geom2d_Curve) C2d;
1600 BuildPCurves(fprm, lprm, Tolpc,myHS2->ChangeSurface().Surface(), newc, C2d);
1601 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1602 myTolReached2d=Tolpc;
1603 }
1604 //
1605 aCurve.SetSecondCurve2d(C2d);
1606 }
1607
1608 else {
1609 Handle(Geom2d_BSplineCurve) H1;
1610 aCurve.SetSecondCurve2d(H1);
1611 }
1612 }// end of if (typl == IntPatch_Circle || typl == IntPatch_Ellipse)
1613
1614 else {
1615 Handle(Geom2d_BSplineCurve) H1;
1616 //
1617 aCurve.SetFirstCurve2d(H1);
1618 aCurve.SetSecondCurve2d(H1);
1619 }
1620 //==============================================
1621 //
1622 mySeqOfCurve.Append(aCurve);
1623 break;
1624
1625 }// end of if (ok) {
1626 }// end of for (Standard_Integer j=0; j<=17; j++)
1627 }// end of else { on regarde si on garde
59495dbe 1628 }// for (i=1; i<=myLConstruct.NbParts(); i++)
1629 }// IntPatch_Circle: IntPatch_Ellipse:
1630 break;
1631
7fd59977 1632 case IntPatch_Analytic: {
1633 IntSurf_Quadric quad1,quad2;
1634 GeomAbs_SurfaceType typs = myHS1->Surface().GetType();
59495dbe 1635
7fd59977 1636 switch (typs) {
59495dbe 1637 case GeomAbs_Plane:
1638 quad1.SetValue(myHS1->Surface().Plane());
655fddc8 1639 break;
59495dbe 1640 case GeomAbs_Cylinder:
655fddc8 1641 quad1.SetValue(myHS1->Surface().Cylinder());
1642 break;
59495dbe 1643 case GeomAbs_Cone:
655fddc8 1644 quad1.SetValue(myHS1->Surface().Cone());
1645 break;
59495dbe 1646 case GeomAbs_Sphere:
655fddc8 1647 quad1.SetValue(myHS1->Surface().Sphere());
1648 break;
7eed5d29 1649 case GeomAbs_Torus:
1650 quad1.SetValue(myHS1->Surface().Torus());
1651 break;
59495dbe 1652 default:
655fddc8 1653 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve 1");
59495dbe 1654 }
1655
7fd59977 1656 typs = myHS2->Surface().GetType();
59495dbe 1657
7fd59977 1658 switch (typs) {
59495dbe 1659 case GeomAbs_Plane:
1660 quad2.SetValue(myHS2->Surface().Plane());
655fddc8 1661 break;
59495dbe 1662 case GeomAbs_Cylinder:
655fddc8 1663 quad2.SetValue(myHS2->Surface().Cylinder());
1664 break;
59495dbe 1665 case GeomAbs_Cone:
655fddc8 1666 quad2.SetValue(myHS2->Surface().Cone());
1667 break;
59495dbe 1668 case GeomAbs_Sphere:
655fddc8 1669 quad2.SetValue(myHS2->Surface().Sphere());
1670 break;
7eed5d29 1671 case GeomAbs_Torus:
1672 quad2.SetValue(myHS2->Surface().Torus());
1673 break;
59495dbe 1674 default:
655fddc8 1675 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve 2");
59495dbe 1676 }
7fd59977 1677 //
1678 //=========
1679 IntPatch_ALineToWLine convert (quad1, quad2);
59495dbe 1680
7fd59977 1681 if (!myApprox) {
1682 aNbParts=myLConstruct.NbParts();
1683 for (i=1; i<=aNbParts; i++) {
655fddc8 1684 myLConstruct.Part(i, fprm, lprm);
1685 Handle(IntPatch_WLine) WL =
1686 convert.MakeWLine(Handle(IntPatch_ALine)::DownCast(L), fprm, lprm);
1687 //
1688 Handle(Geom2d_BSplineCurve) H1;
1689 Handle(Geom2d_BSplineCurve) H2;
1690
1691 if(myApprox1) {
1692 H1 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_True);
1693 }
1694
1695 if(myApprox2) {
1696 H2 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_False);
1697 }
1698 //
1699 mySeqOfCurve.Append(IntTools_Curve(MakeBSpline(WL,1,WL->NbPnts()), H1, H2));
7fd59977 1700 }
1701 } // if (!myApprox)
1702
1703 else { // myApprox=TRUE
1704 GeomInt_WLApprox theapp3d;
1705 //
1706 Standard_Real tol2d = myTolApprox;
655fddc8 1707 //
7fd59977 1708 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_True);
59495dbe 1709
7fd59977 1710 aNbParts=myLConstruct.NbParts();
1711 for (i=1; i<=aNbParts; i++) {
655fddc8 1712 myLConstruct.Part(i, fprm, lprm);
1713 Handle(IntPatch_WLine) WL =
1714 convert.MakeWLine(Handle(IntPatch_ALine):: DownCast(L),fprm,lprm);
1715
1716 theapp3d.Perform(myHS1,myHS2,WL,Standard_True,myApprox1,myApprox2, 1, WL->NbPnts());
1717
1718 if (!theapp3d.IsDone()) {
1719 //
1720 Handle(Geom2d_BSplineCurve) H1;
1721 Handle(Geom2d_BSplineCurve) H2;
1722
1723 if(myApprox1) {
1724 H1 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_True);
1725 }
1726
1727 if(myApprox2) {
1728 H2 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_False);
1729 }
1730 //
1731 mySeqOfCurve.Append(IntTools_Curve(MakeBSpline(WL,1,WL->NbPnts()), H1, H2));
1732 }
1733
1734 else {
1735 if(myApprox1 || myApprox2) {
1736 if( theapp3d.TolReached2d()>myTolReached2d || myTolReached2d==0) {
1737 myTolReached2d = theapp3d.TolReached2d();
1738 }
1739 }
1740
1741 if( theapp3d.TolReached3d()>myTolReached3d || myTolReached3d==0) {
1742 myTolReached3d = theapp3d.TolReached3d();
1743 }
1744
1745 Standard_Integer aNbMultiCurves, nbpoles;
1746 aNbMultiCurves=theapp3d.NbMultiCurves();
1747 for (j=1; j<=aNbMultiCurves; j++) {
1748 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
1749 nbpoles = mbspc.NbPoles();
1750
1751 TColgp_Array1OfPnt tpoles(1, nbpoles);
1752 mbspc.Curve(1, tpoles);
1753 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
1754 mbspc.Knots(),
1755 mbspc.Multiplicities(),
1756 mbspc.Degree());
1757
1758 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
1759 Check.FixTangent(Standard_True,Standard_True);
1760 //
1761 IntTools_Curve aCurve;
1762 aCurve.SetCurve(BS);
1763
1764 if(myApprox1) {
1765 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
1766 mbspc.Curve(2,tpoles2d);
1767 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
1768 mbspc.Knots(),
1769 mbspc.Multiplicities(),
1770 mbspc.Degree());
1771
1772 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1773 newCheck.FixTangent(Standard_True,Standard_True);
1774 //
1775 aCurve.SetFirstCurve2d(BS2);
1776 }
1777 else {
1778 Handle(Geom2d_BSplineCurve) H1;
1779 aCurve.SetFirstCurve2d(H1);
1780 }
1781
1782 if(myApprox2) {
1783 TColgp_Array1OfPnt2d tpoles2d(1, nbpoles);
1784 Standard_Integer TwoOrThree;
1785 TwoOrThree=myApprox1 ? 3 : 2;
1786 mbspc.Curve(TwoOrThree, tpoles2d);
1787 Handle(Geom2d_BSplineCurve) BS2 =new Geom2d_BSplineCurve(tpoles2d,
1788 mbspc.Knots(),
1789 mbspc.Multiplicities(),
1790 mbspc.Degree());
1791
1792 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1793 newCheck.FixTangent(Standard_True,Standard_True);
1794 //
1795 aCurve.SetSecondCurve2d(BS2);
1796 }
1797 else {
1798 Handle(Geom2d_BSplineCurve) H2;
1799 aCurve.SetSecondCurve2d(H2);
1800 }
1801 //
1802 mySeqOfCurve.Append(aCurve);
1803
1804 }// for (j=1; j<=aNbMultiCurves; j++) {
1805 }// else from if (!theapp3d.IsDone())
7fd59977 1806 }// for (i=1; i<=aNbParts; i++) {
1807 }// else { // myApprox=TRUE
1808 }// case IntPatch_Analytic:
59495dbe 1809 break;
7fd59977 1810
59495dbe 1811 case IntPatch_Walking:{
7fd59977 1812 Handle(IntPatch_WLine) WL =
1813 Handle(IntPatch_WLine)::DownCast(L);
1814 //
1815 Standard_Integer ifprm, ilprm;
1816 //
1817 if (!myApprox) {
1818 aNbParts = 1;
1819 if(!bAvoidLineConstructor){
655fddc8 1820 aNbParts=myLConstruct.NbParts();
7fd59977 1821 }
1822 for (i=1; i<=aNbParts; ++i) {
655fddc8 1823 Handle(Geom2d_BSplineCurve) H1, H2;
1824 Handle(Geom_Curve) aBSp;
1825 //
1826 if(bAvoidLineConstructor) {
1827 ifprm = 1;
1828 ilprm = WL->NbPnts();
1829 }
1830 else {
1831 myLConstruct.Part(i, fprm, lprm);
1832 ifprm=(Standard_Integer)fprm;
1833 ilprm=(Standard_Integer)lprm;
1834 }
1835 //
1836 if(myApprox1) {
1837 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
1838 }
1839 //
1840 if(myApprox2) {
1841 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
1842 }
1843 //
1844 aBSp=MakeBSpline(WL, ifprm, ilprm);
1845 IntTools_Curve aIC(aBSp, H1, H2);
1846 mySeqOfCurve.Append(aIC);
7fd59977 1847 }// for (i=1; i<=aNbParts; ++i) {
1848 }// if (!myApprox) {
1849 //
1850 else { // X
1851 Standard_Boolean bIsDecomposited;
1852 Standard_Integer nbiter, aNbSeqOfL;
4abae870 1853 Standard_Real tol2d, aTolApproxImp;
7fd59977 1854 IntPatch_SequenceOfLine aSeqOfL;
1855 GeomInt_WLApprox theapp3d;
1856 Approx_ParametrizationType aParType = Approx_ChordLength;
1857 //
1858 Standard_Boolean anApprox1 = myApprox1;
1859 Standard_Boolean anApprox2 = myApprox2;
4abae870 1860 //
1861 aTolApproxImp=1.e-5;
7fd59977 1862 tol2d = myTolApprox;
1863
1864 GeomAbs_SurfaceType typs1, typs2;
1865 typs1 = myHS1->Surface().GetType();
1866 typs2 = myHS2->Surface().GetType();
1867 Standard_Boolean anWithPC = Standard_True;
1868
1869 if(typs1 == GeomAbs_Cylinder && typs2 == GeomAbs_Sphere) {
655fddc8 1870 anWithPC =
1871 ApproxWithPCurves(myHS1->Surface().Cylinder(), myHS2->Surface().Sphere());
7fd59977 1872 }
1873 else if (typs1 == GeomAbs_Sphere && typs2 == GeomAbs_Cylinder) {
655fddc8 1874 anWithPC =
1875 ApproxWithPCurves(myHS2->Surface().Cylinder(), myHS1->Surface().Sphere());
7fd59977 1876 }
4abae870 1877 //
7fd59977 1878 if(!anWithPC) {
4abae870 1879 myTolApprox = aTolApproxImp;//1.e-5;
655fddc8 1880 anApprox1 = Standard_False;
1881 anApprox2 = Standard_False;
1882 //
1883 tol2d = myTolApprox;
7fd59977 1884 }
655fddc8 1885
7fd59977 1886 if(myHS1 == myHS2) {
655fddc8 1887 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1888 rejectSurface = Standard_True;
7fd59977 1889 }
1890 else {
655fddc8 1891 if(reApprox && !rejectSurface)
1892 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1893 else {
1894 Standard_Integer iDegMax, iDegMin, iNbIter;
1895 //
1896 ApproxParameters(myHS1, myHS2, iDegMin, iDegMax, iNbIter);
1897 theapp3d.SetParameters(myTolApprox, tol2d, iDegMin, iDegMax, iNbIter, Standard_True, aParType);
1898 }
7fd59977 1899 }
1900 //
1901 Standard_Real aReachedTol = Precision::Confusion();
1902 bIsDecomposited=DecompositionOfWLine(WL,
655fddc8 1903 myHS1,
1904 myHS2,
1905 myFace1,
1906 myFace2,
1907 myLConstruct,
1908 bAvoidLineConstructor,
1909 aSeqOfL,
1910 aReachedTol,
1911 myContext);
4abae870 1912 if ( bIsDecomposited && ( myTolReached3d < aReachedTol ) ) {
655fddc8 1913 myTolReached3d = aReachedTol;
4abae870 1914 }
7fd59977 1915 //
1916 aNbSeqOfL=aSeqOfL.Length();
1917 //
1918 if (bIsDecomposited) {
655fddc8 1919 nbiter=aNbSeqOfL;
7fd59977 1920 }
1921 else {
655fddc8 1922 nbiter=1;
1923 aNbParts=1;
1924 if (!bAvoidLineConstructor) {
1925 aNbParts=myLConstruct.NbParts();
1926 nbiter=aNbParts;
1927 }
7fd59977 1928 }
1929 //
7fd59977 1930 for(i = 1; i <= nbiter; ++i) {
655fddc8 1931 if(bIsDecomposited) {
1932 WL = Handle(IntPatch_WLine)::DownCast(aSeqOfL.Value(i));
1933 ifprm = 1;
1934 ilprm = WL->NbPnts();
1935 }
1936 else {
1937 if(bAvoidLineConstructor) {
1938 ifprm = 1;
1939 ilprm = WL->NbPnts();
1940 }
1941 else {
1942 myLConstruct.Part(i, fprm, lprm);
1943 ifprm = (Standard_Integer)fprm;
1944 ilprm = (Standard_Integer)lprm;
1945 }
1946 }
1947 //-- lbr :
1948 //-- Si une des surfaces est un plan , on approxime en 2d
1949 //-- sur cette surface et on remonte les points 2d en 3d.
1950 if(typs1 == GeomAbs_Plane) {
1951 theapp3d.Perform(myHS1, myHS2, WL, Standard_False,Standard_True, myApprox2,ifprm,ilprm);
1952 }
1953 else if(typs2 == GeomAbs_Plane) {
1954 theapp3d.Perform(myHS1,myHS2,WL,Standard_False,myApprox1,Standard_True,ifprm,ilprm);
1955 }
1956 else {
1957 //
1958 if (myHS1 != myHS2){
1959 if ((typs1==GeomAbs_BezierSurface || typs1==GeomAbs_BSplineSurface) &&
1960 (typs2==GeomAbs_BezierSurface || typs2==GeomAbs_BSplineSurface)) {
1961
1962 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_True, aParType);
1963
1964 Standard_Boolean bUseSurfaces;
1965 bUseSurfaces=NotUseSurfacesForApprox(myFace1, myFace2, WL, ifprm, ilprm);
1966 if (bUseSurfaces) {
1967 // ######
1968 rejectSurface = Standard_True;
1969 // ######
1970 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1971 }
1972 }
1973 }
1974 //
1975 theapp3d.Perform(myHS1,myHS2,WL,Standard_True,anApprox1,anApprox2,ifprm,ilprm);
1976 }
1977 //
94218044 1978 if (!theapp3d.IsDone()) {
655fddc8 1979 Handle(Geom2d_BSplineCurve) H1;
94218044 1980 Handle(Geom2d_BSplineCurve) H2;
655fddc8 1981 //
1982 Handle(Geom_Curve) aBSp=MakeBSpline(WL,ifprm, ilprm);
4abae870 1983 //
655fddc8 1984 if(myApprox1) {
1985 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
1986 }
4abae870 1987 //
655fddc8 1988 if(myApprox2) {
1989 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
1990 }
1991 //
1992 IntTools_Curve aIC(aBSp, H1, H2);
1993 mySeqOfCurve.Append(aIC);
1994 }
1995
1996 else {
1997 if(myApprox1 || myApprox2 || (typs1==GeomAbs_Plane || typs2==GeomAbs_Plane)) {
1998 if( theapp3d.TolReached2d()>myTolReached2d || myTolReached2d==0.) {
1999 myTolReached2d = theapp3d.TolReached2d();
2000 }
2001 }
2002 if(typs1==GeomAbs_Plane || typs2==GeomAbs_Plane) {
2003 myTolReached3d = myTolReached2d;
2004 //
2005 if (typs1==GeomAbs_Torus || typs2==GeomAbs_Torus) {
2006 if (myTolReached3d<1.e-6) {
2007 myTolReached3d = theapp3d.TolReached3d();
2008 myTolReached3d=1.e-6;
2009 }
2010 }
2011 }
2012 else if( theapp3d.TolReached3d()>myTolReached3d || myTolReached3d==0.) {
2013 myTolReached3d = theapp3d.TolReached3d();
2014 }
2015
2016 Standard_Integer aNbMultiCurves, nbpoles;
2017 aNbMultiCurves=theapp3d.NbMultiCurves();
2018 for (j=1; j<=aNbMultiCurves; j++) {
2019 if(typs1 == GeomAbs_Plane) {
2020 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2021 nbpoles = mbspc.NbPoles();
2022
2023 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2024 TColgp_Array1OfPnt tpoles(1,nbpoles);
2025
2026 mbspc.Curve(1,tpoles2d);
2027 const gp_Pln& Pln = myHS1->Surface().Plane();
2028 //
2029 Standard_Integer ik;
2030 for(ik = 1; ik<= nbpoles; ik++) {
2031 tpoles.SetValue(ik,
2032 ElSLib::Value(tpoles2d.Value(ik).X(),
2033 tpoles2d.Value(ik).Y(),
2034 Pln));
2035 }
2036 //
2037 Handle(Geom_BSplineCurve) BS =
2038 new Geom_BSplineCurve(tpoles,
2039 mbspc.Knots(),
2040 mbspc.Multiplicities(),
2041 mbspc.Degree());
2042 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2043 Check.FixTangent(Standard_True, Standard_True);
2044 //
2045 IntTools_Curve aCurve;
2046 aCurve.SetCurve(BS);
2047
2048 if(myApprox1) {
2049 Handle(Geom2d_BSplineCurve) BS1 =
2050 new Geom2d_BSplineCurve(tpoles2d,
2051 mbspc.Knots(),
2052 mbspc.Multiplicities(),
2053 mbspc.Degree());
2054 GeomLib_Check2dBSplineCurve Check1(BS1,TOLCHECK,TOLANGCHECK);
2055 Check1.FixTangent(Standard_True,Standard_True);
2056 //
2057 // ############################################
2058 if(!rejectSurface && !reApprox) {
2059 Standard_Boolean isValid = IsCurveValid(BS1);
2060 if(!isValid) {
2061 reApprox = Standard_True;
2062 goto reapprox;
2063 }
2064 }
2065 // ############################################
2066 aCurve.SetFirstCurve2d(BS1);
2067 }
2068 else {
2069 Handle(Geom2d_BSplineCurve) H1;
2070 aCurve.SetFirstCurve2d(H1);
2071 }
2072
2073 if(myApprox2) {
2074 mbspc.Curve(2, tpoles2d);
2075
2076 Handle(Geom2d_BSplineCurve) BS2 = new Geom2d_BSplineCurve(tpoles2d,
2077 mbspc.Knots(),
2078 mbspc.Multiplicities(),
2079 mbspc.Degree());
2080 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
2081 newCheck.FixTangent(Standard_True,Standard_True);
2082
2083 // ###########################################
2084 if(!rejectSurface && !reApprox) {
2085 Standard_Boolean isValid = IsCurveValid(BS2);
2086 if(!isValid) {
2087 reApprox = Standard_True;
2088 goto reapprox;
2089 }
2090 }
2091 // ###########################################
2092 //
2093 aCurve.SetSecondCurve2d(BS2);
2094 }
2095 else {
2096 Handle(Geom2d_BSplineCurve) H2;
2097 //
2098 aCurve.SetSecondCurve2d(H2);
2099 }
2100 //
2101 mySeqOfCurve.Append(aCurve);
4abae870 2102 }//if(typs1 == GeomAbs_Plane) {
655fddc8 2103
2104 else if(typs2 == GeomAbs_Plane) {
2105 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2106 nbpoles = mbspc.NbPoles();
2107
2108 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2109 TColgp_Array1OfPnt tpoles(1,nbpoles);
2110 mbspc.Curve((myApprox1==Standard_True)? 2 : 1,tpoles2d);
2111 const gp_Pln& Pln = myHS2->Surface().Plane();
2112 //
2113 Standard_Integer ik;
2114 for(ik = 1; ik<= nbpoles; ik++) {
2115 tpoles.SetValue(ik,
2116 ElSLib::Value(tpoles2d.Value(ik).X(),
2117 tpoles2d.Value(ik).Y(),
2118 Pln));
2119
2120 }
2121 //
2122 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
2123 mbspc.Knots(),
2124 mbspc.Multiplicities(),
2125 mbspc.Degree());
2126 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2127 Check.FixTangent(Standard_True,Standard_True);
2128 //
2129 IntTools_Curve aCurve;
2130 aCurve.SetCurve(BS);
2131
2132 if(myApprox2) {
2133 Handle(Geom2d_BSplineCurve) BS1=new Geom2d_BSplineCurve(tpoles2d,
2134 mbspc.Knots(),
2135 mbspc.Multiplicities(),
2136 mbspc.Degree());
2137 GeomLib_Check2dBSplineCurve Check1(BS1,TOLCHECK,TOLANGCHECK);
2138 Check1.FixTangent(Standard_True,Standard_True);
2139 //
2140 // ###########################################
2141 if(!rejectSurface && !reApprox) {
2142 Standard_Boolean isValid = IsCurveValid(BS1);
2143 if(!isValid) {
2144 reApprox = Standard_True;
2145 goto reapprox;
2146 }
2147 }
989341c5 2148 // ###########################################
2149 bPCurvesOk = CheckPCurve(BS1, myFace2);
655fddc8 2150 aCurve.SetSecondCurve2d(BS1);
2151 }
2152 else {
2153 Handle(Geom2d_BSplineCurve) H2;
2154 aCurve.SetSecondCurve2d(H2);
2155 }
2156
2157 if(myApprox1) {
2158 mbspc.Curve(1,tpoles2d);
2159 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
2160 mbspc.Knots(),
2161 mbspc.Multiplicities(),
2162 mbspc.Degree());
2163 GeomLib_Check2dBSplineCurve Check2(BS2,TOLCHECK,TOLANGCHECK);
2164 Check2.FixTangent(Standard_True,Standard_True);
2165 //
2166 // ###########################################
2167 if(!rejectSurface && !reApprox) {
2168 Standard_Boolean isValid = IsCurveValid(BS2);
2169 if(!isValid) {
2170 reApprox = Standard_True;
2171 goto reapprox;
2172 }
2173 }
989341c5 2174 // ###########################################
2175 bPCurvesOk = bPCurvesOk && CheckPCurve(BS2, myFace1);
655fddc8 2176 aCurve.SetFirstCurve2d(BS2);
2177 }
2178 else {
2179 Handle(Geom2d_BSplineCurve) H1;
2180 //
2181 aCurve.SetFirstCurve2d(H1);
2182 }
2183 //
989341c5 2184 //if points of the pcurves are out of the faces bounds
2185 //create 3d and 2d curves without approximation
2186 if (!bPCurvesOk) {
2187 Handle(Geom2d_BSplineCurve) H1, H2;
655fddc8 2188 bPCurvesOk = Standard_True;
2189 //
989341c5 2190 Handle(Geom_Curve) aBSp=MakeBSpline(WL,ifprm, ilprm);
59495dbe 2191
989341c5 2192 if(myApprox1) {
2193 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
655fddc8 2194 bPCurvesOk = CheckPCurve(H1, myFace1);
989341c5 2195 }
59495dbe 2196
989341c5 2197 if(myApprox2) {
2198 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
655fddc8 2199 bPCurvesOk = bPCurvesOk && CheckPCurve(H2, myFace2);
989341c5 2200 }
2201 //
655fddc8 2202 //if pcurves created without approximation are out of the
2203 //faces bounds, use approximated 3d and 2d curves
2204 if (bPCurvesOk) {
2205 IntTools_Curve aIC(aBSp, H1, H2);
2206 mySeqOfCurve.Append(aIC);
2207 } else {
2208 mySeqOfCurve.Append(aCurve);
2209 }
989341c5 2210 } else {
2211 mySeqOfCurve.Append(aCurve);
2212 }
4abae870 2213 }// else if(typs2 == GeomAbs_Plane)
2214 //
2215 else { //typs2 != GeomAbs_Plane && typs1 != GeomAbs_Plane
2216 Standard_Boolean bIsValid1, bIsValid2;
2217 Handle(Geom_BSplineCurve) BS;
2218 Handle(Geom2d_BSplineCurve) aH2D;
2219 IntTools_Curve aCurve;
2220 //
2221 bIsValid1=Standard_True;
2222 bIsValid2=Standard_True;
2223 //
655fddc8 2224 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2225 nbpoles = mbspc.NbPoles();
2226 TColgp_Array1OfPnt tpoles(1,nbpoles);
2227 mbspc.Curve(1,tpoles);
4abae870 2228 BS=new Geom_BSplineCurve(tpoles,
655fddc8 2229 mbspc.Knots(),
2230 mbspc.Multiplicities(),
2231 mbspc.Degree());
2232 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2233 Check.FixTangent(Standard_True,Standard_True);
2234 //
2235 aCurve.SetCurve(BS);
4abae870 2236 aCurve.SetFirstCurve2d(aH2D);
2237 aCurve.SetSecondCurve2d(aH2D);
2238 //
655fddc8 2239 if(myApprox1) {
2240 if(anApprox1) {
4abae870 2241 Handle(Geom2d_BSplineCurve) BS1;
655fddc8 2242 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2243 mbspc.Curve(2,tpoles2d);
4abae870 2244 //
2245 BS1=new Geom2d_BSplineCurve(tpoles2d,
655fddc8 2246 mbspc.Knots(),
2247 mbspc.Multiplicities(),
2248 mbspc.Degree());
2249 GeomLib_Check2dBSplineCurve newCheck(BS1,TOLCHECK,TOLANGCHECK);
2250 newCheck.FixTangent(Standard_True,Standard_True);
2251 //
4abae870 2252 if (!reApprox) {
2253 bIsValid1=CheckPCurve(BS1, myFace1);
2254 }
2255 //
655fddc8 2256 aCurve.SetFirstCurve2d(BS1);
2257 }
2258 else {
2259 Handle(Geom2d_BSplineCurve) BS1;
2260 fprm = BS->FirstParameter();
2261 lprm = BS->LastParameter();
2262
2263 Handle(Geom2d_Curve) C2d;
2264 Standard_Real aTol = myTolApprox;
2265 BuildPCurves(fprm, lprm, aTol, myHS1->ChangeSurface().Surface(), BS, C2d);
2266 BS1 = Handle(Geom2d_BSplineCurve)::DownCast(C2d);
2267 aCurve.SetFirstCurve2d(BS1);
2268 }
4abae870 2269 } // if(myApprox1) {
655fddc8 2270 //
2271 if(myApprox2) {
2272 if(anApprox2) {
4abae870 2273 Handle(Geom2d_BSplineCurve) BS2;
655fddc8 2274 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2275 mbspc.Curve((myApprox1==Standard_True)? 3 : 2,tpoles2d);
4abae870 2276 BS2=new Geom2d_BSplineCurve(tpoles2d,
655fddc8 2277 mbspc.Knots(),
2278 mbspc.Multiplicities(),
2279 mbspc.Degree());
2280 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
2281 newCheck.FixTangent(Standard_True,Standard_True);
2282 //
4abae870 2283 if (!reApprox) {
2284 bIsValid2=CheckPCurve(BS2, myFace2);
2285 }
655fddc8 2286 aCurve.SetSecondCurve2d(BS2);
2287 }
2288 else {
2289 Handle(Geom2d_BSplineCurve) BS2;
2290 fprm = BS->FirstParameter();
2291 lprm = BS->LastParameter();
2292
2293 Handle(Geom2d_Curve) C2d;
2294 Standard_Real aTol = myTolApprox;
2295 BuildPCurves(fprm, lprm, aTol, myHS2->ChangeSurface().Surface(), BS, C2d);
2296 BS2 = Handle(Geom2d_BSplineCurve)::DownCast(C2d);
2297 aCurve.SetSecondCurve2d(BS2);
2298 }
4abae870 2299 } //if(myApprox2) {
2300 if (!bIsValid1 || !bIsValid2) {
2301 myTolApprox=aTolApproxImp;//1.e-5;
2302 tol2d = myTolApprox;
2303 reApprox = Standard_True;
2304 goto reapprox;
655fddc8 2305 }
2306 //
2307 mySeqOfCurve.Append(aCurve);
2308 }
2309 }
2310 }
7fd59977 2311 }
2312 }// else { // X
2313 }// case IntPatch_Walking:{
59495dbe 2314 break;
2315
7fd59977 2316 case IntPatch_Restriction:
2317 break;
4abae870 2318 default:
2319 break;
7fd59977 2320
2321 }
2322}
2323
2324//=======================================================================
2325//function : BuildPCurves
2326//purpose :
2327//=======================================================================
655fddc8 2328void BuildPCurves (Standard_Real f,
2329 Standard_Real l,
2330 Standard_Real& Tol,
2331 const Handle (Geom_Surface)& S,
2332 const Handle (Geom_Curve)& C,
2333 Handle (Geom2d_Curve)& C2d)
7fd59977 2334{
655fddc8 2335 if (!C2d.IsNull()) {
2336 return;
2337 }
2338 //
7fd59977 2339 Standard_Real umin,umax,vmin,vmax;
2340 //
655fddc8 2341 S->Bounds(umin, umax, vmin, vmax);
2342 // in class ProjLib_Function the range of parameters is shrank by 1.e-09
2343 if((l - f) > 2.e-09) {
2344 C2d = GeomProjLib::Curve2d(C,f,l,S,umin,umax,vmin,vmax,Tol);
2345 //
2346 if (C2d.IsNull()) {
2347 // proj. a circle that goes through the pole on a sphere to the sphere
2348 Tol += Precision::Confusion();
7fd59977 2349 C2d = GeomProjLib::Curve2d(C,f,l,S,Tol);
7fd59977 2350 }
655fddc8 2351 }
2352 else {
2353 if((l - f) > Epsilon(Abs(f))) {
2354 GeomAPI_ProjectPointOnSurf aProjector1, aProjector2;
2355 gp_Pnt P1 = C->Value(f);
2356 gp_Pnt P2 = C->Value(l);
2357 aProjector1.Init(P1, S);
2358 aProjector2.Init(P2, S);
2359
2360 if(aProjector1.IsDone() && aProjector2.IsDone()) {
2361 Standard_Real U=0., V=0.;
2362 aProjector1.LowerDistanceParameters(U, V);
2363 gp_Pnt2d p1(U, V);
2364
2365 aProjector2.LowerDistanceParameters(U, V);
2366 gp_Pnt2d p2(U, V);
2367
2368 if(p1.Distance(p2) > gp::Resolution()) {
2369 TColgp_Array1OfPnt2d poles(1,2);
2370 TColStd_Array1OfReal knots(1,2);
2371 TColStd_Array1OfInteger mults(1,2);
2372 poles(1) = p1;
2373 poles(2) = p2;
2374 knots(1) = f;
2375 knots(2) = l;
2376 mults(1) = mults(2) = 2;
2377
2378 C2d = new Geom2d_BSplineCurve(poles,knots,mults,1);
2379
2380 // compute reached tolerance.begin
2381 gp_Pnt PMid = C->Value((f + l) * 0.5);
2382 aProjector1.Perform(PMid);
2383
2384 if(aProjector1.IsDone()) {
2385 aProjector1.LowerDistanceParameters(U, V);
2386 gp_Pnt2d pmidproj(U, V);
2387 gp_Pnt2d pmidcurve2d = C2d->Value((f + l) * 0.5);
2388 Standard_Real adist = pmidcurve2d.Distance(pmidproj);
2389 Tol = (adist > Tol) ? adist : Tol;
4abae870 2390 }
655fddc8 2391 // compute reached tolerance.end
4abae870 2392 }
7fd59977 2393 }
2394 }
655fddc8 2395 }
2396 //
2397 if (S->IsUPeriodic() && !C2d.IsNull()) {
2398 // Recadre dans le domaine UV de la face
2399 Standard_Real aTm, U0, aEps, period, du, U0x;
2400 Standard_Boolean bAdjust;
7fd59977 2401 //
655fddc8 2402 aEps = Precision::PConfusion();
2403 period = S->UPeriod();
2404 //
2405 aTm = .5*(f + l);
2406 gp_Pnt2d pm = C2d->Value(aTm);
2407 U0 = pm.X();
2408 //
2409 bAdjust =
2410 IntTools_Tools::AdjustPeriodic(U0, umin, umax, period, U0x, du, aEps);
2411 if (bAdjust) {
2412 gp_Vec2d T1(du, 0.);
2413 C2d->Translate(T1);
7fd59977 2414 }
2415 }
7fd59977 2416}
2417
2418//=======================================================================
2419//function : Parameters
2420//purpose :
2421//=======================================================================
2422 void Parameters(const Handle(GeomAdaptor_HSurface)& HS1,
655fddc8 2423 const Handle(GeomAdaptor_HSurface)& HS2,
2424 const gp_Pnt& Ptref,
2425 Standard_Real& U1,
2426 Standard_Real& V1,
2427 Standard_Real& U2,
2428 Standard_Real& V2)
7fd59977 2429{
2430
2431 IntSurf_Quadric quad1,quad2;
2432 GeomAbs_SurfaceType typs = HS1->Surface().GetType();
2433
2434 switch (typs) {
2435 case GeomAbs_Plane:
2436 quad1.SetValue(HS1->Surface().Plane());
2437 break;
2438 case GeomAbs_Cylinder:
2439 quad1.SetValue(HS1->Surface().Cylinder());
2440 break;
2441 case GeomAbs_Cone:
2442 quad1.SetValue(HS1->Surface().Cone());
2443 break;
2444 case GeomAbs_Sphere:
2445 quad1.SetValue(HS1->Surface().Sphere());
2446 break;
7eed5d29 2447 case GeomAbs_Torus:
2448 quad1.SetValue(HS1->Surface().Torus());
2449 break;
7fd59977 2450 default:
2451 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve");
2452 }
2453
2454 typs = HS2->Surface().GetType();
2455 switch (typs) {
2456 case GeomAbs_Plane:
2457 quad2.SetValue(HS2->Surface().Plane());
2458 break;
2459 case GeomAbs_Cylinder:
2460 quad2.SetValue(HS2->Surface().Cylinder());
2461 break;
2462 case GeomAbs_Cone:
2463 quad2.SetValue(HS2->Surface().Cone());
2464 break;
2465 case GeomAbs_Sphere:
2466 quad2.SetValue(HS2->Surface().Sphere());
2467 break;
7eed5d29 2468 case GeomAbs_Torus:
2469 quad2.SetValue(HS2->Surface().Torus());
2470 break;
7fd59977 2471 default:
2472 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve");
2473 }
2474
2475 quad1.Parameters(Ptref,U1,V1);
2476 quad2.Parameters(Ptref,U2,V2);
2477}
2478
2479//=======================================================================
2480//function : MakeBSpline
2481//purpose :
2482//=======================================================================
2483Handle(Geom_Curve) MakeBSpline (const Handle(IntPatch_WLine)& WL,
655fddc8 2484 const Standard_Integer ideb,
2485 const Standard_Integer ifin)
7fd59977 2486{
2487 Standard_Integer i,nbpnt = ifin-ideb+1;
2488 TColgp_Array1OfPnt poles(1,nbpnt);
2489 TColStd_Array1OfReal knots(1,nbpnt);
2490 TColStd_Array1OfInteger mults(1,nbpnt);
2491 Standard_Integer ipidebm1;
2492 for(i=1,ipidebm1=i+ideb-1; i<=nbpnt;ipidebm1++, i++) {
2493 poles(i) = WL->Point(ipidebm1).Value();
2494 mults(i) = 1;
2495 knots(i) = i-1;
2496 }
2497 mults(1) = mults(nbpnt) = 2;
2498 return
2499 new Geom_BSplineCurve(poles,knots,mults,1);
2500}
2501//
2502
2503//=======================================================================
2504//function : MakeBSpline2d
2505//purpose :
2506//=======================================================================
2507Handle(Geom2d_BSplineCurve) MakeBSpline2d(const Handle(IntPatch_WLine)& theWLine,
655fddc8 2508 const Standard_Integer ideb,
2509 const Standard_Integer ifin,
2510 const Standard_Boolean onFirst)
7fd59977 2511{
2512 Standard_Integer i, nbpnt = ifin-ideb+1;
2513 TColgp_Array1OfPnt2d poles(1,nbpnt);
2514 TColStd_Array1OfReal knots(1,nbpnt);
2515 TColStd_Array1OfInteger mults(1,nbpnt);
2516 Standard_Integer ipidebm1;
2517
2518 for(i = 1, ipidebm1 = i+ideb-1; i <= nbpnt; ipidebm1++, i++) {
2519 Standard_Real U, V;
2520 if(onFirst)
655fddc8 2521 theWLine->Point(ipidebm1).ParametersOnS1(U, V);
7fd59977 2522 else
655fddc8 2523 theWLine->Point(ipidebm1).ParametersOnS2(U, V);
7fd59977 2524 poles(i).SetCoord(U, V);
2525 mults(i) = 1;
2526 knots(i) = i-1;
2527 }
2528 mults(1) = mults(nbpnt) = 2;
2529
2530 return new Geom2d_BSplineCurve(poles,knots,mults,1);
2531}
2532//=======================================================================
2533//function : PrepareLines3D
2534//purpose :
2535//=======================================================================
a9f7b6b5 2536 void IntTools_FaceFace::PrepareLines3D(const Standard_Boolean bToSplit)
7fd59977 2537{
a9f7b6b5
P
2538 Standard_Integer i, aNbCurves;
2539 GeomAbs_SurfaceType aType1, aType2;
7fd59977 2540 IntTools_SequenceOfCurves aNewCvs;
7fd59977 2541 //
a9f7b6b5 2542 // 1. Treatment closed curves
7fd59977 2543 aNbCurves=mySeqOfCurve.Length();
a9f7b6b5 2544 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2545 const IntTools_Curve& aIC=mySeqOfCurve(i);
7fd59977 2546 //
a9f7b6b5
P
2547 if (bToSplit) {
2548 Standard_Integer j, aNbC;
2549 IntTools_SequenceOfCurves aSeqCvs;
2550 //
2551 aNbC=IntTools_Tools::SplitCurve(aIC, aSeqCvs);
2552 if (aNbC) {
655fddc8 2553 for (j=1; j<=aNbC; ++j) {
2554 const IntTools_Curve& aICNew=aSeqCvs(j);
2555 aNewCvs.Append(aICNew);
2556 }
a9f7b6b5
P
2557 }
2558 else {
655fddc8 2559 aNewCvs.Append(aIC);
7fd59977 2560 }
2561 }
7fd59977 2562 else {
2563 aNewCvs.Append(aIC);
2564 }
2565 }
2566 //
2567 // 2. Plane\Cone intersection when we had 4 curves
a9f7b6b5
P
2568 aType1=myHS1->GetType();
2569 aType2=myHS2->GetType();
2570 aNbCurves=aNewCvs.Length();
2571 //
7fd59977 2572 if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Cone) ||
2573 (aType2==GeomAbs_Plane && aType1==GeomAbs_Cone)) {
7fd59977 2574 if (aNbCurves==4) {
a9f7b6b5
P
2575 GeomAbs_CurveType aCType1;
2576 //
2577 aCType1=aNewCvs(1).Type();
7fd59977 2578 if (aCType1==GeomAbs_Line) {
655fddc8 2579 IntTools_SequenceOfCurves aSeqIn, aSeqOut;
2580 //
2581 for (i=1; i<=aNbCurves; ++i) {
2582 const IntTools_Curve& aIC=aNewCvs(i);
2583 aSeqIn.Append(aIC);
2584 }
2585 //
2586 IntTools_Tools::RejectLines(aSeqIn, aSeqOut);
2587 //
2588 aNewCvs.Clear();
2589 aNbCurves=aSeqOut.Length();
2590 for (i=1; i<=aNbCurves; ++i) {
2591 const IntTools_Curve& aIC=aSeqOut(i);
2592 aNewCvs.Append(aIC);
2593 }
7fd59977 2594 }
2595 }
a9f7b6b5 2596 }// if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Cone)...
7fd59977 2597 //
2598 // 3. Fill mySeqOfCurve
2599 mySeqOfCurve.Clear();
2600 aNbCurves=aNewCvs.Length();
a9f7b6b5 2601 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2602 const IntTools_Curve& aIC=aNewCvs(i);
2603 mySeqOfCurve.Append(aIC);
2604 }
7fd59977 2605}
7fd59977 2606//=======================================================================
2607//function : CorrectSurfaceBoundaries
2608//purpose :
2609//=======================================================================
59495dbe 2610 void CorrectSurfaceBoundaries(const TopoDS_Face& theFace,
c002793b 2611 const Standard_Real theTolerance,
2612 Standard_Real& theumin,
2613 Standard_Real& theumax,
2614 Standard_Real& thevmin,
2615 Standard_Real& thevmax)
7fd59977 2616{
2617 Standard_Boolean enlarge, isuperiodic, isvperiodic;
2618 Standard_Real uinf, usup, vinf, vsup, delta;
2619 GeomAbs_SurfaceType aType;
2620 Handle(Geom_Surface) aSurface;
2621 //
2622 aSurface = BRep_Tool::Surface(theFace);
2623 aSurface->Bounds(uinf, usup, vinf, vsup);
2624 delta = theTolerance;
2625 enlarge = Standard_False;
2626 //
2627 GeomAdaptor_Surface anAdaptorSurface(aSurface);
2628 //
2629 if(aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
2630 Handle(Geom_Surface) aBasisSurface =
2631 (Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface))->BasisSurface();
2632
2633 if(aBasisSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ||
2634 aBasisSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2635 return;
2636 }
2637 }
2638 //
2639 if(aSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2640 Handle(Geom_Surface) aBasisSurface =
2641 (Handle(Geom_OffsetSurface)::DownCast(aSurface))->BasisSurface();
2642
2643 if(aBasisSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ||
2644 aBasisSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2645 return;
2646 }
2647 }
2648 //
2649 isuperiodic = anAdaptorSurface.IsUPeriodic();
2650 isvperiodic = anAdaptorSurface.IsVPeriodic();
2651 //
2652 aType=anAdaptorSurface.GetType();
2653 if((aType==GeomAbs_BezierSurface) ||
2654 (aType==GeomAbs_BSplineSurface) ||
2655 (aType==GeomAbs_SurfaceOfExtrusion) ||
c002793b 2656 (aType==GeomAbs_SurfaceOfRevolution) ||
2657 (aType==GeomAbs_Cylinder)) {
7fd59977 2658 enlarge=Standard_True;
2659 }
2660 //
2661 if(!isuperiodic && enlarge) {
2662
2663 if((theumin - uinf) > delta )
2664 theumin -= delta;
2665 else {
2666 theumin = uinf;
2667 }
2668
2669 if((usup - theumax) > delta )
2670 theumax += delta;
2671 else
2672 theumax = usup;
2673 }
2674 //
2675 if(!isvperiodic && enlarge) {
2676 if((thevmin - vinf) > delta ) {
2677 thevmin -= delta;
2678 }
2679 else {
2680 thevmin = vinf;
2681 }
2682 if((vsup - thevmax) > delta ) {
2683 thevmax += delta;
2684 }
2685 else {
2686 thevmax = vsup;
2687 }
2688 }
2689 //
2690 {
2691 Standard_Integer aNbP;
2692 Standard_Real aXP, dXfact, aXmid, aX1, aX2, aTolPA;
2693 //
2694 aTolPA=Precision::Angular();
2695 // U
2696 if (isuperiodic) {
2697 aXP=anAdaptorSurface.UPeriod();
2698 dXfact=theumax-theumin;
2699 if (dXfact-aTolPA>aXP) {
655fddc8 2700 aXmid=0.5*(theumax+theumin);
2701 aNbP=RealToInt(aXmid/aXP);
2702 if (aXmid<0.) {
2703 aNbP=aNbP-1;
2704 }
2705 aX1=aNbP*aXP;
2706 if (theumin>aTolPA) {
2707 aX1=theumin+aNbP*aXP;
2708 }
2709 aX2=aX1+aXP;
2710 if (theumin<aX1) {
2711 theumin=aX1;
2712 }
2713 if (theumax>aX2) {
2714 theumax=aX2;
2715 }
7fd59977 2716 }
2717 }
2718 // V
2719 if (isvperiodic) {
2720 aXP=anAdaptorSurface.VPeriod();
2721 dXfact=thevmax-thevmin;
2722 if (dXfact-aTolPA>aXP) {
655fddc8 2723 aXmid=0.5*(thevmax+thevmin);
2724 aNbP=RealToInt(aXmid/aXP);
2725 if (aXmid<0.) {
2726 aNbP=aNbP-1;
2727 }
2728 aX1=aNbP*aXP;
2729 if (thevmin>aTolPA) {
2730 aX1=thevmin+aNbP*aXP;
2731 }
2732 aX2=aX1+aXP;
2733 if (thevmin<aX1) {
2734 thevmin=aX1;
2735 }
2736 if (thevmax>aX2) {
2737 thevmax=aX2;
2738 }
7fd59977 2739 }
2740 }
2741 }
2742 //
2743 if(isuperiodic || isvperiodic) {
2744 Standard_Boolean correct = Standard_False;
2745 Standard_Boolean correctU = Standard_False;
2746 Standard_Boolean correctV = Standard_False;
2747 Bnd_Box2d aBox;
2748 TopExp_Explorer anExp;
2749
2750 for(anExp.Init(theFace, TopAbs_EDGE); anExp.More(); anExp.Next()) {
2751 if(BRep_Tool::IsClosed(TopoDS::Edge(anExp.Current()), theFace)) {
655fddc8 2752 correct = Standard_True;
2753 Standard_Real f, l;
2754 TopoDS_Edge anEdge = TopoDS::Edge(anExp.Current());
2755
2756 for(Standard_Integer i = 0; i < 2; i++) {
2757 if(i==0) {
2758 anEdge.Orientation(TopAbs_FORWARD);
2759 }
2760 else {
2761 anEdge.Orientation(TopAbs_REVERSED);
2762 }
2763 Handle(Geom2d_Curve) aCurve = BRep_Tool::CurveOnSurface(anEdge, theFace, f, l);
2764
2765 if(aCurve.IsNull()) {
2766 correct = Standard_False;
2767 break;
2768 }
2769 Handle(Geom2d_Line) aLine = Handle(Geom2d_Line)::DownCast(aCurve);
2770
2771 if(aLine.IsNull()) {
2772 correct = Standard_False;
2773 break;
2774 }
2775 gp_Dir2d anUDir(1., 0.);
2776 gp_Dir2d aVDir(0., 1.);
2777 Standard_Real anAngularTolerance = Precision::Angular();
2778
2779 correctU = correctU || aLine->Position().Direction().IsParallel(aVDir, anAngularTolerance);
2780 correctV = correctV || aLine->Position().Direction().IsParallel(anUDir, anAngularTolerance);
2781
2782 gp_Pnt2d pp1 = aCurve->Value(f);
2783 aBox.Add(pp1);
2784 gp_Pnt2d pp2 = aCurve->Value(l);
2785 aBox.Add(pp2);
2786 }
2787 if(!correct)
2788 break;
7fd59977 2789 }
2790 }
2791
2792 if(correct) {
2793 Standard_Real umin, vmin, umax, vmax;
2794 aBox.Get(umin, vmin, umax, vmax);
2795
2796 if(isuperiodic && correctU) {
655fddc8 2797
2798 if(theumin < umin)
2799 theumin = umin;
2800
2801 if(theumax > umax) {
2802 theumax = umax;
2803 }
7fd59977 2804 }
2805 if(isvperiodic && correctV) {
655fddc8 2806
2807 if(thevmin < vmin)
2808 thevmin = vmin;
2809 if(thevmax > vmax)
2810 thevmax = vmax;
7fd59977 2811 }
2812 }
2813 }
2814}
2815//
2816//
2817// The block is dedicated to determine whether WLine [ifprm, ilprm]
2818// crosses the degenerated zone on each given surface or not.
2819// If Yes -> We will not use info about surfaces during approximation
8e0115e4 2820// because inside degenerated zone of the surface the approx. algo.
7fd59977 2821// uses wrong values of normal, etc., and resulting curve will have
2822// oscillations that we would not like to have.
7fd59977 2823
2824
4e57c75e 2825
7fd59977 2826static
2827 Standard_Boolean IsDegeneratedZone(const gp_Pnt2d& aP2d,
655fddc8 2828 const Handle(Geom_Surface)& aS,
2829 const Standard_Integer iDir);
7fd59977 2830static
2831 Standard_Boolean IsPointInDegeneratedZone(const IntSurf_PntOn2S& aP2S,
655fddc8 2832 const TopoDS_Face& aF1,
2833 const TopoDS_Face& aF2);
7fd59977 2834//=======================================================================
2835//function : NotUseSurfacesForApprox
2836//purpose :
2837//=======================================================================
2838Standard_Boolean NotUseSurfacesForApprox(const TopoDS_Face& aF1,
655fddc8 2839 const TopoDS_Face& aF2,
2840 const Handle(IntPatch_WLine)& WL,
2841 const Standard_Integer ifprm,
2842 const Standard_Integer ilprm)
7fd59977 2843{
2844 Standard_Boolean bPInDZ;
2845
2846 Handle(IntSurf_LineOn2S) aLineOn2S=WL->Curve();
2847
2848 const IntSurf_PntOn2S& aP2Sfprm=aLineOn2S->Value(ifprm);
2849 bPInDZ=IsPointInDegeneratedZone(aP2Sfprm, aF1, aF2);
2850 if (bPInDZ) {
2851 return bPInDZ;
2852 }
2853
2854 const IntSurf_PntOn2S& aP2Slprm=aLineOn2S->Value(ilprm);
2855 bPInDZ=IsPointInDegeneratedZone(aP2Slprm, aF1, aF2);
2856
2857 return bPInDZ;
2858}
2859//=======================================================================
2860//function : IsPointInDegeneratedZone
2861//purpose :
2862//=======================================================================
2863Standard_Boolean IsPointInDegeneratedZone(const IntSurf_PntOn2S& aP2S,
655fddc8 2864 const TopoDS_Face& aF1,
2865 const TopoDS_Face& aF2)
2866
7fd59977 2867{
2868 Standard_Boolean bFlag=Standard_True;
2869 Standard_Real US11, US12, VS11, VS12, US21, US22, VS21, VS22;
2870 Standard_Real U1, V1, U2, V2, aDelta, aD;
2871 gp_Pnt2d aP2d;
2872
2873 Handle(Geom_Surface)aS1 = BRep_Tool::Surface(aF1);
2874 aS1->Bounds(US11, US12, VS11, VS12);
2875 GeomAdaptor_Surface aGAS1(aS1);
2876
2877 Handle(Geom_Surface)aS2 = BRep_Tool::Surface(aF2);
2878 aS1->Bounds(US21, US22, VS21, VS22);
2879 GeomAdaptor_Surface aGAS2(aS2);
2880 //
2881 //const gp_Pnt& aP=aP2S.Value();
2882 aP2S.Parameters(U1, V1, U2, V2);
2883 //
2884 aDelta=1.e-7;
2885 // Check on Surf 1
2886 aD=aGAS1.UResolution(aDelta);
2887 aP2d.SetCoord(U1, V1);
2888 if (fabs(U1-US11) < aD) {
2889 bFlag=IsDegeneratedZone(aP2d, aS1, 1);
2890 if (bFlag) {
2891 return bFlag;
2892 }
2893 }
2894 if (fabs(U1-US12) < aD) {
2895 bFlag=IsDegeneratedZone(aP2d, aS1, 1);
2896 if (bFlag) {
2897 return bFlag;
2898 }
2899 }
2900 aD=aGAS1.VResolution(aDelta);
2901 if (fabs(V1-VS11) < aDelta) {
2902 bFlag=IsDegeneratedZone(aP2d, aS1, 2);
2903 if (bFlag) {
2904 return bFlag;
2905 }
2906 }
2907 if (fabs(V1-VS12) < aDelta) {
2908 bFlag=IsDegeneratedZone(aP2d, aS1, 2);
2909 if (bFlag) {
2910 return bFlag;
2911 }
2912 }
2913 // Check on Surf 2
2914 aD=aGAS2.UResolution(aDelta);
2915 aP2d.SetCoord(U2, V2);
2916 if (fabs(U2-US21) < aDelta) {
2917 bFlag=IsDegeneratedZone(aP2d, aS2, 1);
2918 if (bFlag) {
2919 return bFlag;
2920 }
2921 }
2922 if (fabs(U2-US22) < aDelta) {
2923 bFlag=IsDegeneratedZone(aP2d, aS2, 1);
2924 if (bFlag) {
2925 return bFlag;
2926 }
2927 }
2928 aD=aGAS2.VResolution(aDelta);
2929 if (fabs(V2-VS21) < aDelta) {
2930 bFlag=IsDegeneratedZone(aP2d, aS2, 2);
2931 if (bFlag) {
2932 return bFlag;
2933 }
2934 }
2935 if (fabs(V2-VS22) < aDelta) {
2936 bFlag=IsDegeneratedZone(aP2d, aS2, 2);
2937 if (bFlag) {
2938 return bFlag;
2939 }
2940 }
2941 return !bFlag;
2942}
2943
2944//=======================================================================
2945//function : IsDegeneratedZone
2946//purpose :
2947//=======================================================================
2948Standard_Boolean IsDegeneratedZone(const gp_Pnt2d& aP2d,
655fddc8 2949 const Handle(Geom_Surface)& aS,
2950 const Standard_Integer iDir)
7fd59977 2951{
2952 Standard_Boolean bFlag=Standard_True;
2953 Standard_Real US1, US2, VS1, VS2, dY, dX, d1, d2, dD;
2954 Standard_Real aXm, aYm, aXb, aYb, aXe, aYe;
2955 aS->Bounds(US1, US2, VS1, VS2);
2956
2957 gp_Pnt aPm, aPb, aPe;
2958
2959 aXm=aP2d.X();
2960 aYm=aP2d.Y();
2961
2962 aS->D0(aXm, aYm, aPm);
2963
2964 dX=1.e-5;
2965 dY=1.e-5;
2966 dD=1.e-12;
2967
2968 if (iDir==1) {
2969 aXb=aXm;
2970 aXe=aXm;
2971 aYb=aYm-dY;
2972 if (aYb < VS1) {
2973 aYb=VS1;
2974 }
2975 aYe=aYm+dY;
2976 if (aYe > VS2) {
2977 aYe=VS2;
2978 }
2979 aS->D0(aXb, aYb, aPb);
2980 aS->D0(aXe, aYe, aPe);
2981
2982 d1=aPm.Distance(aPb);
2983 d2=aPm.Distance(aPe);
2984 if (d1 < dD && d2 < dD) {
2985 return bFlag;
2986 }
2987 return !bFlag;
2988 }
2989 //
2990 else if (iDir==2) {
2991 aYb=aYm;
2992 aYe=aYm;
2993 aXb=aXm-dX;
2994 if (aXb < US1) {
2995 aXb=US1;
2996 }
2997 aXe=aXm+dX;
2998 if (aXe > US2) {
2999 aXe=US2;
3000 }
3001 aS->D0(aXb, aYb, aPb);
3002 aS->D0(aXe, aYe, aPe);
3003
3004 d1=aPm.Distance(aPb);
3005 d2=aPm.Distance(aPe);
3006 if (d1 < dD && d2 < dD) {
3007 return bFlag;
3008 }
3009 return !bFlag;
3010 }
3011 return !bFlag;
3012}
3013
3014//=========================================================================
3015// static function : ComputePurgedWLine
3016// purpose : Removes equal points (leave one of equal points) from theWLine
3017// and recompute vertex parameters.
3018// Returns new WLine or null WLine if the number
3019// of the points is less than 2.
3020//=========================================================================
3021Handle(IntPatch_WLine) ComputePurgedWLine(const Handle(IntPatch_WLine)& theWLine) {
3928aec6 3022
3928aec6 3023 Standard_Integer i, k, v, nb, nbvtx;
7fd59977 3024 Handle(IntPatch_WLine) aResult;
3928aec6
P
3025 nbvtx = theWLine->NbVertex();
3026 nb = theWLine->NbPnts();
3027 if (nb==2) {
3028 const IntSurf_PntOn2S& p1 = theWLine->Point(1);
3029 const IntSurf_PntOn2S& p2 = theWLine->Point(2);
3030 if(p1.Value().IsEqual(p2.Value(), gp::Resolution())) {
3031 return aResult;
3032 }
3033 }
3034 //
7fd59977 3035 Handle(IntPatch_WLine) aLocalWLine;
3036 Handle(IntPatch_WLine) aTmpWLine = theWLine;
7fd59977 3037 Handle(IntSurf_LineOn2S) aLineOn2S = new IntSurf_LineOn2S();
3038 aLocalWLine = new IntPatch_WLine(aLineOn2S, Standard_False);
7fd59977 3039 for(i = 1; i <= nb; i++) {
3040 aLineOn2S->Add(theWLine->Point(i));
3041 }
3042
3043 for(v = 1; v <= nbvtx; v++) {
3044 aLocalWLine->AddVertex(theWLine->Vertex(v));
3045 }
3046
3047 for(i = 1; i <= aLineOn2S->NbPoints(); i++) {
3048 Standard_Integer aStartIndex = i + 1;
3049 Standard_Integer anEndIndex = i + 5;
3050 nb = aLineOn2S->NbPoints();
3051 anEndIndex = (anEndIndex > nb) ? nb : anEndIndex;
3052
a2eede02 3053 if((aStartIndex > nb) || (anEndIndex <= 1)) {
7fd59977 3054 continue;
3055 }
3056 k = aStartIndex;
3057
3058 while(k <= anEndIndex) {
3059
3060 if(i != k) {
655fddc8 3061 IntSurf_PntOn2S p1 = aLineOn2S->Value(i);
3062 IntSurf_PntOn2S p2 = aLineOn2S->Value(k);
3063
3064 if(p1.Value().IsEqual(p2.Value(), gp::Resolution())) {
3065 aTmpWLine = aLocalWLine;
3066 aLocalWLine = new IntPatch_WLine(aLineOn2S, Standard_False);
3067
3068 for(v = 1; v <= aTmpWLine->NbVertex(); v++) {
3069 IntPatch_Point aVertex = aTmpWLine->Vertex(v);
3070 Standard_Integer avertexindex = (Standard_Integer)aVertex.ParameterOnLine();
3071
3072 if(avertexindex >= k) {
3073 aVertex.SetParameter(aVertex.ParameterOnLine() - 1.);
3074 }
3075 aLocalWLine->AddVertex(aVertex);
3076 }
3077 aLineOn2S->RemovePoint(k);
3078 anEndIndex--;
3079 continue;
3080 }
7fd59977 3081 }
3082 k++;
3083 }
3084 }
3085
3086 if(aLineOn2S->NbPoints() > 1) {
3087 aResult = aLocalWLine;
3088 }
3089 return aResult;
3090}
3091
3092//=======================================================================
3093//function : TolR3d
3094//purpose :
3095//=======================================================================
3096void TolR3d(const TopoDS_Face& aF1,
655fddc8 3097 const TopoDS_Face& aF2,
3098 Standard_Real& myTolReached3d)
7fd59977 3099{
3100 Standard_Real aTolF1, aTolF2, aTolFMax, aTolTresh;
3101
3102 aTolTresh=2.999999e-3;
3103 aTolF1 = BRep_Tool::Tolerance(aF1);
3104 aTolF2 = BRep_Tool::Tolerance(aF2);
3105 aTolFMax=Max(aTolF1, aTolF2);
3106
3107 if (aTolFMax>aTolTresh) {
3108 myTolReached3d=aTolFMax;
3109 }
3110}
3111//=======================================================================
7fd59977 3112//function : IsPointOnBoundary
3113//purpose :
3114//=======================================================================
3115Standard_Boolean IsPointOnBoundary(const Standard_Real theParameter,
655fddc8 3116 const Standard_Real theFirstBoundary,
3117 const Standard_Real theSecondBoundary,
3118 const Standard_Real theResolution,
3119 Standard_Boolean& IsOnFirstBoundary)
7fd59977 3120{
3121 Standard_Boolean bRet;
3122 Standard_Integer i;
3123 Standard_Real adist;
3124 //
3125 bRet=Standard_False;
3126 for(i = 0; i < 2; ++i) {
3127 IsOnFirstBoundary = (i == 0);
3128 if (IsOnFirstBoundary) {
3129 adist = fabs(theParameter - theFirstBoundary);
3130 }
3131 else {
3132 adist = fabs(theParameter - theSecondBoundary);
3133 }
3134 if(adist < theResolution) {
3135 return !bRet;
3136 }
3137 }
3138 return bRet;
3139}
3140// ------------------------------------------------------------------------------------------------
3141// static function: FindPoint
3142// purpose:
3143// ------------------------------------------------------------------------------------------------
3144Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
655fddc8 3145 const gp_Pnt2d& theLastPoint,
3146 const Standard_Real theUmin,
3147 const Standard_Real theUmax,
3148 const Standard_Real theVmin,
3149 const Standard_Real theVmax,
3150 gp_Pnt2d& theNewPoint) {
7fd59977 3151
3152 gp_Vec2d aVec(theFirstPoint, theLastPoint);
3153 Standard_Integer i = 0, j = 0;
3154
3155 for(i = 0; i < 4; i++) {
3156 gp_Vec2d anOtherVec;
3157 gp_Vec2d anOtherVecNormal;
3158 gp_Pnt2d aprojpoint = theLastPoint;
3159
3160 if((i % 2) == 0) {
3161 anOtherVec.SetX(0.);
3162 anOtherVec.SetY(1.);
3163 anOtherVecNormal.SetX(1.);
3164 anOtherVecNormal.SetY(0.);
3165
3166 if(i < 2)
655fddc8 3167 aprojpoint.SetX(theUmin);
7fd59977 3168 else
655fddc8 3169 aprojpoint.SetX(theUmax);
7fd59977 3170 }
3171 else {
3172 anOtherVec.SetX(1.);
3173 anOtherVec.SetY(0.);
3174 anOtherVecNormal.SetX(0.);
3175 anOtherVecNormal.SetY(1.);
3176
3177 if(i < 2)
655fddc8 3178 aprojpoint.SetY(theVmin);
7fd59977 3179 else
655fddc8 3180 aprojpoint.SetY(theVmax);
7fd59977 3181 }
3182 gp_Vec2d anormvec = aVec;
3183 anormvec.Normalize();
fa9681ca 3184 RefineVector(anormvec);
7fd59977 3185 Standard_Real adot1 = anormvec.Dot(anOtherVecNormal);
3186
3187 if(fabs(adot1) < Precision::Angular())
3188 continue;
3189 Standard_Real adist = 0.;
3190 Standard_Boolean bIsOut = Standard_False;
3191
3192 if((i % 2) == 0) {
3193 adist = (i < 2) ? fabs(theLastPoint.X() - theUmin) : fabs(theLastPoint.X() - theUmax);
3194 bIsOut = (i < 2) ? (theLastPoint.X() < theUmin) : (theLastPoint.X() > theUmax);
3195 }
3196 else {
3197 adist = (i < 2) ? fabs(theLastPoint.Y() - theVmin) : fabs(theLastPoint.Y() - theVmax);
3198 bIsOut = (i < 2) ? (theLastPoint.Y() < theVmin) : (theLastPoint.Y() > theVmax);
3199 }
3200 Standard_Real anoffset = adist * anOtherVec.Dot(anormvec) / adot1;
3201
3202 for(j = 0; j < 2; j++) {
3203 anoffset = (j == 0) ? anoffset : -anoffset;
3204 gp_Pnt2d acurpoint(aprojpoint.XY() + (anOtherVec.XY()*anoffset));
3205 gp_Vec2d acurvec(theLastPoint, acurpoint);
3206 if ( bIsOut )
655fddc8 3207 acurvec.Reverse();
7fd59977 3208
9e9df9d9
P
3209 Standard_Real aDotX, anAngleX;
3210 //
3211 aDotX = aVec.Dot(acurvec);
3212 anAngleX = aVec.Angle(acurvec);
3213 //
3214 if(aDotX > 0. && fabs(anAngleX) < Precision::PConfusion()) {
655fddc8 3215 if((i % 2) == 0) {
3216 if((acurpoint.Y() >= theVmin) &&
3217 (acurpoint.Y() <= theVmax)) {
3218 theNewPoint = acurpoint;
3219 return Standard_True;
3220 }
3221 }
3222 else {
3223 if((acurpoint.X() >= theUmin) &&
3224 (acurpoint.X() <= theUmax)) {
3225 theNewPoint = acurpoint;
3226 return Standard_True;
3227 }
3228 }
7fd59977 3229 }
3230 }
3231 }
3232 return Standard_False;
3233}
3234
3235
3236// ------------------------------------------------------------------------------------------------
3237// static function: FindPoint
3238// purpose: Find point on the boundary of radial tangent zone
3239// ------------------------------------------------------------------------------------------------
3240Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
655fddc8 3241 const gp_Pnt2d& theLastPoint,
3242 const Standard_Real theUmin,
3243 const Standard_Real theUmax,
3244 const Standard_Real theVmin,
3245 const Standard_Real theVmax,
3246 const gp_Pnt2d& theTanZoneCenter,
3247 const Standard_Real theZoneRadius,
3248 Handle(GeomAdaptor_HSurface) theGASurface,
3249 gp_Pnt2d& theNewPoint) {
7fd59977 3250 theNewPoint = theLastPoint;
3251
3252 if ( !IsInsideTanZone( theLastPoint, theTanZoneCenter, theZoneRadius, theGASurface) )
3253 return Standard_False;
3254
3255 Standard_Real aUResolution = theGASurface->UResolution( theZoneRadius );
3256 Standard_Real aVResolution = theGASurface->VResolution( theZoneRadius );
3257
3258 Standard_Real aRadius = ( aUResolution < aVResolution ) ? aUResolution : aVResolution;
3259 gp_Ax22d anAxis( theTanZoneCenter, gp_Dir2d(1, 0), gp_Dir2d(0, 1) );
3260 gp_Circ2d aCircle( anAxis, aRadius );
3261
3262 //
3263 gp_Vec2d aDir( theLastPoint.XY() - theFirstPoint.XY() );
3264 Standard_Real aLength = aDir.Magnitude();
3265 if ( aLength <= gp::Resolution() )
3266 return Standard_False;
3267 gp_Lin2d aLine( theFirstPoint, aDir );
3268
3269 //
3270 Handle(Geom2d_Line) aCLine = new Geom2d_Line( aLine );
3271 Handle(Geom2d_TrimmedCurve) aC1 = new Geom2d_TrimmedCurve( aCLine, 0, aLength );
3272 Handle(Geom2d_Circle) aC2 = new Geom2d_Circle( aCircle );
3273
3274 Standard_Real aTol = aRadius * 0.001;
3275 aTol = ( aTol < Precision::PConfusion() ) ? Precision::PConfusion() : aTol;
3276
3277 Geom2dAPI_InterCurveCurve anIntersector;
3278 anIntersector.Init( aC1, aC2, aTol );
3279
3280 if ( anIntersector.NbPoints() == 0 )
3281 return Standard_False;
3282
3283 Standard_Boolean aFound = Standard_False;
3284 Standard_Real aMinDist = aLength * aLength;
3285 Standard_Integer i = 0;
3286 for ( i = 1; i <= anIntersector.NbPoints(); i++ ) {
3287 gp_Pnt2d aPInt = anIntersector.Point( i );
3288 if ( aPInt.SquareDistance( theFirstPoint ) < aMinDist ) {
3289 if ( ( aPInt.X() >= theUmin ) && ( aPInt.X() <= theUmax ) &&
655fddc8 3290 ( aPInt.Y() >= theVmin ) && ( aPInt.Y() <= theVmax ) ) {
3291 theNewPoint = aPInt;
3292 aFound = Standard_True;
7fd59977 3293 }
3294 }
3295 }
3296
3297 return aFound;
3298}
3299
3300// ------------------------------------------------------------------------------------------------
3301// static function: IsInsideTanZone
3302// purpose: Check if point is inside a radial tangent zone
3303// ------------------------------------------------------------------------------------------------
3304Standard_Boolean IsInsideTanZone(const gp_Pnt2d& thePoint,
655fddc8 3305 const gp_Pnt2d& theTanZoneCenter,
3306 const Standard_Real theZoneRadius,
3307 Handle(GeomAdaptor_HSurface) theGASurface) {
7fd59977 3308
3309 Standard_Real aUResolution = theGASurface->UResolution( theZoneRadius );
3310 Standard_Real aVResolution = theGASurface->VResolution( theZoneRadius );
3311 Standard_Real aRadiusSQR = ( aUResolution < aVResolution ) ? aUResolution : aVResolution;
3312 aRadiusSQR *= aRadiusSQR;
3313 if ( thePoint.SquareDistance( theTanZoneCenter ) <= aRadiusSQR )
3314 return Standard_True;
3315 return Standard_False;
3316}
3317
3318// ------------------------------------------------------------------------------------------------
3319// static function: CheckTangentZonesExist
3320// purpose: Check if tangent zone exists
3321// ------------------------------------------------------------------------------------------------
3322Standard_Boolean CheckTangentZonesExist( const Handle(GeomAdaptor_HSurface)& theSurface1,
655fddc8 3323 const Handle(GeomAdaptor_HSurface)& theSurface2 )
7fd59977 3324{
3325 if ( ( theSurface1->GetType() != GeomAbs_Torus ) ||
3326 ( theSurface2->GetType() != GeomAbs_Torus ) )
3327 return Standard_False;
3328
7fd59977 3329 gp_Torus aTor1 = theSurface1->Torus();
3330 gp_Torus aTor2 = theSurface2->Torus();
3331
3332 if ( aTor1.Location().Distance( aTor2.Location() ) > Precision::Confusion() )
3333 return Standard_False;
3334
3335 if ( ( fabs( aTor1.MajorRadius() - aTor2.MajorRadius() ) > Precision::Confusion() ) ||
3336 ( fabs( aTor1.MinorRadius() - aTor2.MinorRadius() ) > Precision::Confusion() ) )
3337 return Standard_False;
3338
3339 if ( ( aTor1.MajorRadius() < aTor1.MinorRadius() ) ||
3340 ( aTor2.MajorRadius() < aTor2.MinorRadius() ) )
3341 return Standard_False;
3342 return Standard_True;
3343}
3344
3345// ------------------------------------------------------------------------------------------------
3346// static function: ComputeTangentZones
3347// purpose:
3348// ------------------------------------------------------------------------------------------------
3349Standard_Integer ComputeTangentZones( const Handle(GeomAdaptor_HSurface)& theSurface1,
655fddc8 3350 const Handle(GeomAdaptor_HSurface)& theSurface2,
3351 const TopoDS_Face& theFace1,
3352 const TopoDS_Face& theFace2,
3353 Handle(TColgp_HArray1OfPnt2d)& theResultOnS1,
3354 Handle(TColgp_HArray1OfPnt2d)& theResultOnS2,
3355 Handle(TColStd_HArray1OfReal)& theResultRadius,
1e143abb 3356 const Handle(IntTools_Context)& aContext)
4f189102 3357{
7fd59977 3358 Standard_Integer aResult = 0;
3359 if ( !CheckTangentZonesExist( theSurface1, theSurface2 ) )
3360 return aResult;
3361
7fd59977 3362
3363 TColgp_SequenceOfPnt2d aSeqResultS1, aSeqResultS2;
3364 TColStd_SequenceOfReal aSeqResultRad;
3365
3366 gp_Torus aTor1 = theSurface1->Torus();
3367 gp_Torus aTor2 = theSurface2->Torus();
3368
3369 gp_Ax2 anax1( aTor1.Location(), aTor1.Axis().Direction() );
3370 gp_Ax2 anax2( aTor2.Location(), aTor2.Axis().Direction() );
3371 Standard_Integer j = 0;
3372
3373 for ( j = 0; j < 2; j++ ) {
3374 Standard_Real aCoef = ( j == 0 ) ? -1 : 1;
3375 Standard_Real aRadius1 = fabs(aTor1.MajorRadius() + aCoef * aTor1.MinorRadius());
3376 Standard_Real aRadius2 = fabs(aTor2.MajorRadius() + aCoef * aTor2.MinorRadius());
3377