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[occt.git] / src / IntTools / IntTools_FaceFace.cxx
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b311480e 1// Created on: 2000-11-23
2// Created by: Michael KLOKOV
3// Copyright (c) 2000-2012 OPEN CASCADE SAS
4//
5// The content of this file is subject to the Open CASCADE Technology Public
6// License Version 6.5 (the "License"). You may not use the content of this file
7// except in compliance with the License. Please obtain a copy of the License
8// at http://www.opencascade.org and read it completely before using this file.
9//
10// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
12//
13// The Original Code and all software distributed under the License is
14// distributed on an "AS IS" basis, without warranty of any kind, and the
15// Initial Developer hereby disclaims all such warranties, including without
16// limitation, any warranties of merchantability, fitness for a particular
17// purpose or non-infringement. Please see the License for the specific terms
18// and conditions governing the rights and limitations under the License.
19
7fd59977 20
21
22#include <IntTools_FaceFace.ixx>
23
24#include <Precision.hxx>
25
26#include <TColStd_HArray1OfReal.hxx>
27#include <TColStd_Array1OfReal.hxx>
28#include <TColStd_Array1OfInteger.hxx>
29#include <TColStd_SequenceOfReal.hxx>
30#include <TColStd_ListOfInteger.hxx>
31#include <TColStd_ListIteratorOfListOfInteger.hxx>
32#include <TColStd_Array1OfListOfInteger.hxx>
33
34#include <gp_Lin2d.hxx>
35#include <gp_Ax22d.hxx>
36#include <gp_Circ2d.hxx>
37#include <gp_Torus.hxx>
38#include <gp_Cylinder.hxx>
39
40#include <Bnd_Box.hxx>
41
42#include <TColgp_HArray1OfPnt2d.hxx>
43#include <TColgp_SequenceOfPnt2d.hxx>
44#include <TColgp_Array1OfPnt.hxx>
45#include <TColgp_Array1OfPnt2d.hxx>
46
47#include <IntAna_QuadQuadGeo.hxx>
48
49#include <IntSurf_PntOn2S.hxx>
50#include <IntSurf_LineOn2S.hxx>
51#include <IntSurf_PntOn2S.hxx>
52#include <IntSurf_ListOfPntOn2S.hxx>
53#include <IntRes2d_Domain.hxx>
54#include <ProjLib_Plane.hxx>
55
56#include <IntPatch_GLine.hxx>
57#include <IntPatch_RLine.hxx>
58#include <IntPatch_WLine.hxx>
59#include <IntPatch_ALine.hxx>
60#include <IntPatch_ALineToWLine.hxx>
61
62#include <ElSLib.hxx>
63#include <ElCLib.hxx>
64
65#include <Extrema_ExtCC.hxx>
66#include <Extrema_POnCurv.hxx>
67#include <BndLib_AddSurface.hxx>
68
69#include <Adaptor3d_SurfacePtr.hxx>
70#include <Adaptor2d_HLine2d.hxx>
71
72#include <GeomAbs_SurfaceType.hxx>
73#include <GeomAbs_CurveType.hxx>
74
75#include <Geom_Surface.hxx>
76#include <Geom_Line.hxx>
77#include <Geom_Circle.hxx>
78#include <Geom_Ellipse.hxx>
79#include <Geom_Parabola.hxx>
80#include <Geom_Hyperbola.hxx>
81#include <Geom_TrimmedCurve.hxx>
82#include <Geom_BSplineCurve.hxx>
83#include <Geom_RectangularTrimmedSurface.hxx>
84#include <Geom_OffsetSurface.hxx>
85#include <Geom_Curve.hxx>
86#include <Geom_Conic.hxx>
87
88#include <Geom2d_TrimmedCurve.hxx>
89#include <Geom2d_BSplineCurve.hxx>
90#include <Geom2d_Line.hxx>
91#include <Geom2d_Curve.hxx>
92#include <Geom2d_Circle.hxx>
93
94#include <Geom2dAPI_InterCurveCurve.hxx>
95#include <Geom2dInt_GInter.hxx>
96#include <GeomAdaptor_Curve.hxx>
97#include <GeomAdaptor_HSurface.hxx>
98#include <GeomAdaptor_Surface.hxx>
99#include <GeomLib_CheckBSplineCurve.hxx>
100#include <GeomLib_Check2dBSplineCurve.hxx>
101
102#include <GeomInt_WLApprox.hxx>
103#include <GeomProjLib.hxx>
104#include <GeomAPI_ProjectPointOnSurf.hxx>
105#include <Geom2dAdaptor_Curve.hxx>
7fd59977 106#include <TopoDS.hxx>
107#include <TopoDS_Edge.hxx>
108#include <TopExp_Explorer.hxx>
109
110#include <BRep_Tool.hxx>
111#include <BRepTools.hxx>
112#include <BRepAdaptor_Surface.hxx>
113
7fd59977 114#include <IntTools_Curve.hxx>
115#include <IntTools_Tools.hxx>
116#include <IntTools_Tools.hxx>
117#include <IntTools_TopolTool.hxx>
118#include <IntTools_PntOnFace.hxx>
119#include <IntTools_PntOn2Faces.hxx>
4e57c75e 120#include <BOPInt_Context.hxx>
0fc4f2e2 121#include <IntSurf_ListIteratorOfListOfPntOn2S.hxx>
a2eede02 122
fa9681ca
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123static
124 void RefineVector(gp_Vec2d& aV2D);
4e18e72a 125#ifdef DEB_DUMPWLINE
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126static
127 void DumpWLine(const Handle(IntPatch_WLine)& aWLine);
4e18e72a 128#endif
7fd59977 129//
130static
131 void TolR3d(const TopoDS_Face& ,
132 const TopoDS_Face& ,
133 Standard_Real& );
134static
135 Handle(Geom_Curve) MakeBSpline (const Handle(IntPatch_WLine)&,
136 const Standard_Integer,
137 const Standard_Integer);
138
139static
140 void Parameters(const Handle(GeomAdaptor_HSurface)&,
141 const Handle(GeomAdaptor_HSurface)&,
142 const gp_Pnt&,
143 Standard_Real&,
144 Standard_Real&,
145 Standard_Real&,
146 Standard_Real&);
147
148static
149 void BuildPCurves (Standard_Real f,Standard_Real l,Standard_Real& Tol,
150 const Handle (Geom_Surface)& S,
151 const Handle (Geom_Curve)& C,
152 Handle (Geom2d_Curve)& C2d);
153
154static
155 void CorrectSurfaceBoundaries(const TopoDS_Face& theFace,
156 const Standard_Real theTolerance,
157 Standard_Real& theumin,
158 Standard_Real& theumax,
159 Standard_Real& thevmin,
160 Standard_Real& thevmax);
161static
162 Standard_Boolean NotUseSurfacesForApprox
163 (const TopoDS_Face& aF1,
164 const TopoDS_Face& aF2,
165 const Handle(IntPatch_WLine)& WL,
166 const Standard_Integer ifprm,
167 const Standard_Integer ilprm);
168
169static
170 Handle(IntPatch_WLine) ComputePurgedWLine(const Handle(IntPatch_WLine)& theWLine);
171
172static
173 Standard_Real AdjustPeriodic(const Standard_Real theParameter,
174 const Standard_Real parmin,
175 const Standard_Real parmax,
176 const Standard_Real thePeriod,
177 Standard_Real& theOffset);
178
179static
180 Handle(Geom2d_BSplineCurve) MakeBSpline2d(const Handle(IntPatch_WLine)& theWLine,
181 const Standard_Integer ideb,
182 const Standard_Integer ifin,
183 const Standard_Boolean onFirst);
184
185static
186 Standard_Boolean DecompositionOfWLine(const Handle(IntPatch_WLine)& theWLine,
187 const Handle(GeomAdaptor_HSurface)& theSurface1,
188 const Handle(GeomAdaptor_HSurface)& theSurface2,
189 const TopoDS_Face& theFace1,
190 const TopoDS_Face& theFace2,
191 const IntTools_LineConstructor& theLConstructor,
192 const Standard_Boolean theAvoidLConstructor,
193 IntPatch_SequenceOfLine& theNewLines,
4f189102 194 Standard_Real& theReachedTol3d,
4e57c75e 195 const Handle(BOPInt_Context)& );
7fd59977 196
197static
198 Standard_Boolean ParameterOutOfBoundary(const Standard_Real theParameter,
199 const Handle(Geom_Curve)& theCurve,
200 const TopoDS_Face& theFace1,
201 const TopoDS_Face& theFace2,
202 const Standard_Real theOtherParameter,
203 const Standard_Boolean bIncreasePar,
4f189102 204 Standard_Real& theNewParameter,
4e57c75e 205 const Handle(BOPInt_Context)& );
7fd59977 206
207static
208 Standard_Boolean IsCurveValid(Handle(Geom2d_Curve)& thePCurve);
209
210static
211 Standard_Boolean IsPointOnBoundary(const Standard_Real theParameter,
212 const Standard_Real theFirstBoundary,
213 const Standard_Real theSecondBoundary,
214 const Standard_Real theResolution,
215 Standard_Boolean& IsOnFirstBoundary);
216static
217 Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
218 const gp_Pnt2d& theLastPoint,
219 const Standard_Real theUmin,
220 const Standard_Real theUmax,
221 const Standard_Real theVmin,
222 const Standard_Real theVmax,
223 gp_Pnt2d& theNewPoint);
224
225
226static
227 Standard_Integer ComputeTangentZones( const Handle(GeomAdaptor_HSurface)& theSurface1,
228 const Handle(GeomAdaptor_HSurface)& theSurface2,
229 const TopoDS_Face& theFace1,
230 const TopoDS_Face& theFace2,
231 Handle(TColgp_HArray1OfPnt2d)& theResultOnS1,
232 Handle(TColgp_HArray1OfPnt2d)& theResultOnS2,
4f189102 233 Handle(TColStd_HArray1OfReal)& theResultRadius,
4e57c75e 234 const Handle(BOPInt_Context)& );
7fd59977 235
236static
237 Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
238 const gp_Pnt2d& theLastPoint,
239 const Standard_Real theUmin,
240 const Standard_Real theUmax,
241 const Standard_Real theVmin,
242 const Standard_Real theVmax,
243 const gp_Pnt2d& theTanZoneCenter,
244 const Standard_Real theZoneRadius,
245 Handle(GeomAdaptor_HSurface) theGASurface,
246 gp_Pnt2d& theNewPoint);
247
248static
249 Standard_Boolean IsInsideTanZone(const gp_Pnt2d& thePoint,
250 const gp_Pnt2d& theTanZoneCenter,
251 const Standard_Real theZoneRadius,
252 Handle(GeomAdaptor_HSurface) theGASurface);
253
254static
4f189102
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255 gp_Pnt2d AdjustByNeighbour(const gp_Pnt2d& theaNeighbourPoint,
256 const gp_Pnt2d& theOriginalPoint,
257 Handle(GeomAdaptor_HSurface) theGASurface);
7fd59977 258static
4f189102
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259 Standard_Boolean ApproxWithPCurves(const gp_Cylinder& theCyl,
260 const gp_Sphere& theSph);
7fd59977 261
262static void PerformPlanes(const Handle(GeomAdaptor_HSurface)& theS1,
263 const Handle(GeomAdaptor_HSurface)& theS2,
264 const Standard_Real TolAng,
265 const Standard_Real TolTang,
266 const Standard_Boolean theApprox1,
267 const Standard_Boolean theApprox2,
268 IntTools_SequenceOfCurves& theSeqOfCurve,
269 Standard_Boolean& theTangentFaces);
270
271static Standard_Boolean ClassifyLin2d(const Handle(GeomAdaptor_HSurface)& theS,
272 const gp_Lin2d& theLin2d,
273 const Standard_Real theTol,
274 Standard_Real& theP1,
275 Standard_Real& theP2);
0fc4f2e2 276//
7fd59977 277static
278 void ApproxParameters(const Handle(GeomAdaptor_HSurface)& aHS1,
279 const Handle(GeomAdaptor_HSurface)& aHS2,
280 Standard_Integer& iDegMin,
4f189102 281 Standard_Integer& iNbIter,
0fc4f2e2 282 Standard_Integer& iDegMax);
7fd59977 283
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284static
285 void Tolerances(const Handle(GeomAdaptor_HSurface)& aHS1,
788cbaf4 286 const Handle(GeomAdaptor_HSurface)& aHS2,
287 Standard_Real& aTolTang);
0fc4f2e2 288
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289static
290 Standard_Boolean SortTypes(const GeomAbs_SurfaceType aType1,
291 const GeomAbs_SurfaceType aType2);
292static
293 Standard_Integer IndexType(const GeomAbs_SurfaceType aType);
d10203e8 294
7fd59977 295//
4f189102
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296static
297 Standard_Real MaxSquareDistance (const Standard_Real aT,
298 const Handle(Geom_Curve)& aC3D,
299 const Handle(Geom2d_Curve)& aC2D1,
300 const Handle(Geom2d_Curve)& aC2D2,
301 const Handle(GeomAdaptor_HSurface) myHS1,
302 const Handle(GeomAdaptor_HSurface) myHS2,
303 const TopoDS_Face& aF1,
304 const TopoDS_Face& aF2,
4e57c75e 305 const Handle(BOPInt_Context)& aCtx);
989341c5 306
307static
308 Standard_Boolean CheckPCurve(const Handle(Geom2d_Curve)& aPC,
309 const TopoDS_Face& aFace);
310
4f189102 311//
37b6f439 312static
313 Standard_Real FindMaxSquareDistance (const Standard_Real aA,
314 const Standard_Real aB,
315 const Standard_Real aEps,
316 const Handle(Geom_Curve)& aC3D,
317 const Handle(Geom2d_Curve)& aC2D1,
318 const Handle(Geom2d_Curve)& aC2D2,
0c5acd27 319 const Handle(GeomAdaptor_HSurface)& myHS1,
320 const Handle(GeomAdaptor_HSurface)& myHS2,
37b6f439 321 const TopoDS_Face& aF1,
322 const TopoDS_Face& aF2,
4e57c75e 323 const Handle(BOPInt_Context)& aCtx);
37b6f439 324
7fd59977 325//=======================================================================
326//function :
327//purpose :
328//=======================================================================
4f189102 329IntTools_FaceFace::IntTools_FaceFace()
7fd59977 330{
3f16d970 331 myIsDone=Standard_False;
7fd59977 332 myTangentFaces=Standard_False;
333 //
334 myHS1 = new GeomAdaptor_HSurface ();
335 myHS2 = new GeomAdaptor_HSurface ();
336 myTolReached2d=0.;
337 myTolReached3d=0.;
338 SetParameters(Standard_True, Standard_True, Standard_True, 1.e-07);
4f189102
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339
340}
341//=======================================================================
342//function : SetContext
343//purpose :
344//=======================================================================
4e57c75e 345void IntTools_FaceFace::SetContext(const Handle(BOPInt_Context)& aContext)
4f189102
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346{
347 myContext=aContext;
348}
349//=======================================================================
350//function : Context
351//purpose :
352//=======================================================================
4e57c75e 353const Handle(BOPInt_Context)& IntTools_FaceFace::Context()const
4f189102
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354{
355 return myContext;
7fd59977 356}
357//=======================================================================
358//function : Face1
359//purpose :
360//=======================================================================
4f189102 361const TopoDS_Face& IntTools_FaceFace::Face1() const
7fd59977 362{
363 return myFace1;
364}
7fd59977 365//=======================================================================
366//function : Face2
367//purpose :
368//=======================================================================
4f189102 369const TopoDS_Face& IntTools_FaceFace::Face2() const
7fd59977 370{
371 return myFace2;
372}
7fd59977 373//=======================================================================
374//function : TangentFaces
375//purpose :
376//=======================================================================
4f189102 377Standard_Boolean IntTools_FaceFace::TangentFaces() const
7fd59977 378{
379 return myTangentFaces;
380}
381//=======================================================================
382//function : Points
383//purpose :
384//=======================================================================
4f189102 385const IntTools_SequenceOfPntOn2Faces& IntTools_FaceFace::Points() const
7fd59977 386{
387 return myPnts;
388}
389//=======================================================================
390//function : IsDone
391//purpose :
392//=======================================================================
4f189102 393Standard_Boolean IntTools_FaceFace::IsDone() const
7fd59977 394{
395 return myIsDone;
396}
397//=======================================================================
398//function : TolReached3d
399//purpose :
400//=======================================================================
4f189102 401Standard_Real IntTools_FaceFace::TolReached3d() const
7fd59977 402{
403 return myTolReached3d;
404}
405//=======================================================================
406//function : Lines
407//purpose : return lines of intersection
408//=======================================================================
4f189102 409const IntTools_SequenceOfCurves& IntTools_FaceFace::Lines() const
7fd59977 410{
4f189102
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411 StdFail_NotDone_Raise_if
412 (!myIsDone,
788cbaf4 413 "IntTools_FaceFace::Lines() => myIntersector NOT DONE");
7fd59977 414 return mySeqOfCurve;
415}
7fd59977 416//=======================================================================
417//function : TolReached2d
418//purpose :
419//=======================================================================
4f189102 420Standard_Real IntTools_FaceFace::TolReached2d() const
7fd59977 421{
422 return myTolReached2d;
423}
424// =======================================================================
425// function: SetParameters
426//
427// =======================================================================
4f189102
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428void IntTools_FaceFace::SetParameters(const Standard_Boolean ToApproxC3d,
429 const Standard_Boolean ToApproxC2dOnS1,
430 const Standard_Boolean ToApproxC2dOnS2,
431 const Standard_Real ApproximationTolerance)
7fd59977 432{
433 myApprox = ToApproxC3d;
434 myApprox1 = ToApproxC2dOnS1;
435 myApprox2 = ToApproxC2dOnS2;
436 myTolApprox = ApproximationTolerance;
437}
438//=======================================================================
439//function : SetList
440//purpose :
441//=======================================================================
7fd59977 442void IntTools_FaceFace::SetList(IntSurf_ListOfPntOn2S& aListOfPnts)
443{
444 myListOfPnts = aListOfPnts;
445}
788cbaf4 446
447
448static Standard_Boolean isTreatAnalityc(const TopoDS_Face& theF1,
449 const TopoDS_Face& theF2)
450{
451 const Standard_Real Tolang = 1.e-8;
452 const Standard_Real aTolF1=BRep_Tool::Tolerance(theF1);
453 const Standard_Real aTolF2=BRep_Tool::Tolerance(theF2);
454 const Standard_Real aTolSum = aTolF1 + aTolF2;
455 Standard_Real aHigh = 0.0;
456
457 const BRepAdaptor_Surface aBAS1(theF1), aBAS2(theF2);
458 const GeomAbs_SurfaceType aType1=aBAS1.GetType();
459 const GeomAbs_SurfaceType aType2=aBAS2.GetType();
460
461 gp_Pln aS1;
462 gp_Cylinder aS2;
463 if(aType1 == GeomAbs_Plane)
464 {
465 aS1=aBAS1.Plane();
466 }
467 else if(aType2 == GeomAbs_Plane)
468 {
469 aS1=aBAS2.Plane();
470 }
471 else
472 {
473 return Standard_True;
474 }
475
476 if(aType1 == GeomAbs_Cylinder)
477 {
478 aS2=aBAS1.Cylinder();
479 const Standard_Real VMin = aBAS1.FirstVParameter();
480 const Standard_Real VMax = aBAS1.LastVParameter();
481
482 if( Precision::IsNegativeInfinite(VMin) ||
483 Precision::IsPositiveInfinite(VMax))
484 return Standard_True;
485 else
486 aHigh = VMax - VMin;
487 }
488 else if(aType2 == GeomAbs_Cylinder)
489 {
490 aS2=aBAS2.Cylinder();
491
492 const Standard_Real VMin = aBAS2.FirstVParameter();
493 const Standard_Real VMax = aBAS2.LastVParameter();
494
495 if( Precision::IsNegativeInfinite(VMin) ||
496 Precision::IsPositiveInfinite(VMax))
497 return Standard_True;
498 else
499 aHigh = VMax - VMin;
500 }
501 else
502 {
503 return Standard_True;
504 }
505
506 IntAna_QuadQuadGeo inter;
507 inter.Perform(aS1,aS2,Tolang,aTolSum, aHigh);
508 if(inter.TypeInter() == IntAna_Ellipse)
509 {
510 const gp_Elips anEl = inter.Ellipse(1);
511 const Standard_Real aMajorR = anEl.MajorRadius();
512 const Standard_Real aMinorR = anEl.MinorRadius();
513
514 return (aMajorR < 100000.0 * aMinorR);
515 }
516 else
517 {
518 return inter.IsDone();
519 }
520}
521
522
523
7fd59977 524//=======================================================================
525//function : Perform
526//purpose : intersect surfaces of the faces
527//=======================================================================
0fc4f2e2 528 void IntTools_FaceFace::Perform(const TopoDS_Face& aF1,
788cbaf4 529 const TopoDS_Face& aF2)
7fd59977 530{
788cbaf4 531 Standard_Boolean RestrictLine = Standard_False, hasCone = Standard_False;
532
4f189102 533 if (myContext.IsNull()) {
4e57c75e 534 myContext=new BOPInt_Context;
4f189102 535 }
788cbaf4 536
7fd59977 537 mySeqOfCurve.Clear();
7fd59977 538 myTolReached2d=0.;
539 myTolReached3d=0.;
7fd59977 540 myIsDone = Standard_False;
0fc4f2e2 541 myNbrestr=0;//?
788cbaf4 542
0fc4f2e2
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543 myFace1=aF1;
544 myFace2=aF2;
788cbaf4 545
546 const BRepAdaptor_Surface aBAS1(myFace1, Standard_False);
547 const BRepAdaptor_Surface aBAS2(myFace2, Standard_False);
548 GeomAbs_SurfaceType aType1=aBAS1.GetType();
549 GeomAbs_SurfaceType aType2=aBAS2.GetType();
550
551 const Standard_Boolean bReverse=SortTypes(aType1, aType2);
552 if (bReverse)
553 {
0fc4f2e2
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554 myFace1=aF2;
555 myFace2=aF1;
556 aType1=aBAS2.GetType();
557 aType2=aBAS1.GetType();
788cbaf4 558
559 if (myListOfPnts.Extent())
560 {
0fc4f2e2
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561 Standard_Real aU1,aV1,aU2,aV2;
562 IntSurf_ListIteratorOfListOfPntOn2S aItP2S;
563 //
564 aItP2S.Initialize(myListOfPnts);
788cbaf4 565 for (; aItP2S.More(); aItP2S.Next())
566 {
567 IntSurf_PntOn2S& aP2S=aItP2S.Value();
568 aP2S.Parameters(aU1,aV1,aU2,aV2);
569 aP2S.SetValue(aU2,aV2,aU1,aV1);
0fc4f2e2
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570 }
571 }
572 }
7fd59977 573
788cbaf4 574
575 const Handle(Geom_Surface) S1=BRep_Tool::Surface(myFace1);
576 const Handle(Geom_Surface) S2=BRep_Tool::Surface(myFace2);
577
578 const Standard_Real aTolF1=BRep_Tool::Tolerance(myFace1);
579 const Standard_Real aTolF2=BRep_Tool::Tolerance(myFace2);
580
581 Standard_Real TolArc = aTolF1 + aTolF2;
582 Standard_Real TolTang = TolArc;
583
584 const Standard_Boolean isFace1Quad = (aType1 == GeomAbs_Cylinder ||
585 aType1 == GeomAbs_Cone ||
586 aType1 == GeomAbs_Torus);
587
588 const Standard_Boolean isFace2Quad = (aType2 == GeomAbs_Cylinder ||
589 aType2 == GeomAbs_Cone ||
590 aType2 == GeomAbs_Torus);
591
592 if(aType1==GeomAbs_Plane && aType2==GeomAbs_Plane)
593 {
594 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2 595 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
7fd59977 596 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
597 //
0fc4f2e2 598 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
7fd59977 599 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
600 Standard_Real TolAng = 1.e-8;
788cbaf4 601
602 PerformPlanes(myHS1, myHS2, TolAng, TolTang, myApprox1, myApprox2,
603 mySeqOfCurve, myTangentFaces);
7fd59977 604
605 myIsDone = Standard_True;
4f189102 606
788cbaf4 607 if(!myTangentFaces)
608 {
609 const Standard_Integer NbLinPP = mySeqOfCurve.Length();
610 if(NbLinPP)
611 {
612 Standard_Real aTolFMax;
613 myTolReached3d = 1.e-7;
614 aTolFMax=Max(aTolF1, aTolF2);
615 if (aTolFMax>myTolReached3d)
616 {
617 myTolReached3d=aTolFMax;
618 }
619
620 myTolReached2d = myTolReached3d;
621
622 if (bReverse)
623 {
624 Handle(Geom2d_Curve) aC2D1, aC2D2;
625 const Standard_Integer aNbLin = mySeqOfCurve.Length();
626 for (Standard_Integer i = 1; i <= aNbLin; ++i)
627 {
628 IntTools_Curve& aIC=mySeqOfCurve(i);
629 aC2D1=aIC.FirstCurve2d();
630 aC2D2=aIC.SecondCurve2d();
631 aIC.SetFirstCurve2d(aC2D2);
632 aIC.SetSecondCurve2d(aC2D1);
633 }
634 }
0fc4f2e2
P
635 }
636 }
788cbaf4 637
7fd59977 638 return;
0fc4f2e2 639 }//if(aType1==GeomAbs_Plane && aType2==GeomAbs_Plane){
788cbaf4 640
641 if ((aType1==GeomAbs_Plane) && isFace2Quad)
642 {
7fd59977 643 Standard_Real dU, dV;
788cbaf4 644
7fd59977 645 // F1
788cbaf4 646 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2 647 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
788cbaf4 648
7fd59977 649 dU=0.1*(umax-umin);
650 dV=0.1*(vmax-vmin);
651 umin=umin-dU;
652 umax=umax+dU;
653 vmin=vmin-dV;
654 vmax=vmax+dV;
655 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
656 // F2
0fc4f2e2
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657 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
658 CorrectSurfaceBoundaries(myFace2, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 659 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
660 //
661 if( aType2==GeomAbs_Cone ) {
662 TolArc = 0.0001;
7fd59977 663 hasCone = Standard_True;
664 }
665 }
788cbaf4 666 else if ((aType2==GeomAbs_Plane) && isFace1Quad)
667 {
7fd59977 668 Standard_Real dU, dV;
788cbaf4 669
7fd59977 670 //F1
788cbaf4 671 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2
P
672 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
673 CorrectSurfaceBoundaries(myFace1, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 674 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
675 // F2
0fc4f2e2 676 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
7fd59977 677 dU=0.1*(umax-umin);
678 dV=0.1*(vmax-vmin);
679 umin=umin-dU;
680 umax=umax+dU;
681 vmin=vmin-dV;
682 vmax=vmax+dV;
683 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
684 //
685 if( aType1==GeomAbs_Cone ) {
686 TolArc = 0.0001;
7fd59977 687 hasCone = Standard_True;
688 }
689 }
788cbaf4 690 else
691 {
692 Standard_Real umin, umax, vmin, vmax;
0fc4f2e2 693 BRepTools::UVBounds(myFace1, umin, umax, vmin, vmax);
0fc4f2e2 694 CorrectSurfaceBoundaries(myFace1, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 695 myHS1->ChangeSurface().Load(S1, umin, umax, vmin, vmax);
0fc4f2e2 696 BRepTools::UVBounds(myFace2, umin, umax, vmin, vmax);
0fc4f2e2 697 CorrectSurfaceBoundaries(myFace2, (aTolF1 + aTolF2) * 2., umin, umax, vmin, vmax);
7fd59977 698 myHS2->ChangeSurface().Load(S2, umin, umax, vmin, vmax);
699 }
788cbaf4 700
701 const Handle(IntTools_TopolTool) dom1 = new IntTools_TopolTool(myHS1);
702 const Handle(IntTools_TopolTool) dom2 = new IntTools_TopolTool(myHS2);
703
7fd59977 704 myLConstruct.Load(dom1, dom2, myHS1, myHS2);
788cbaf4 705
706
707 Tolerances(myHS1, myHS2, TolTang);
708
709 {
710 const Standard_Real UVMaxStep = 0.001;
711 const Standard_Real Deflection = (hasCone) ? 0.085 : 0.1;
712 myIntersector.SetTolerances(TolArc, TolTang, UVMaxStep, Deflection);
713 }
714
7fd59977 715 if((myHS1->IsUClosed() && !myHS1->IsUPeriodic()) ||
716 (myHS1->IsVClosed() && !myHS1->IsVPeriodic()) ||
717 (myHS2->IsUClosed() && !myHS2->IsUPeriodic()) ||
788cbaf4 718 (myHS2->IsVClosed() && !myHS2->IsVPeriodic()))
719 {
7fd59977 720 RestrictLine = Standard_True;
721 }
722 //
788cbaf4 723 if((aType1 != GeomAbs_BSplineSurface) &&
724 (aType1 != GeomAbs_BezierSurface) &&
725 (aType1 != GeomAbs_OtherSurface) &&
726 (aType2 != GeomAbs_BSplineSurface) &&
727 (aType2 != GeomAbs_BezierSurface) &&
728 (aType2 != GeomAbs_OtherSurface))
729 {
7fd59977 730 RestrictLine = Standard_True;
788cbaf4 731
7fd59977 732 if ((aType1 == GeomAbs_Torus) ||
788cbaf4 733 (aType2 == GeomAbs_Torus))
734 {
7fd59977 735 myListOfPnts.Clear();
736 }
737 }
788cbaf4 738
7fd59977 739 //
788cbaf4 740 if(!RestrictLine)
741 {
7fd59977 742 TopExp_Explorer aExp;
788cbaf4 743 for(Standard_Integer i = 0; (!RestrictLine) && (i < 2); i++)
744 {
7fd59977 745 const TopoDS_Face& aF=(!i) ? myFace1 : myFace2;
746 aExp.Init(aF, TopAbs_EDGE);
788cbaf4 747 for(; aExp.More(); aExp.Next())
748 {
749 const TopoDS_Edge& aE=TopoDS::Edge(aExp.Current());
750
751 if(BRep_Tool::Degenerated(aE))
752 {
753 RestrictLine = Standard_True;
754 break;
755 }
7fd59977 756 }
757 }
758 }
788cbaf4 759
760 const Standard_Boolean isGeomInt = isTreatAnalityc(aF1, aF2);
761 myIntersector.Perform(myHS1, dom1, myHS2, dom2, TolArc, TolTang,
762 myListOfPnts, RestrictLine, isGeomInt);
763
7fd59977 764 myIsDone = myIntersector.IsDone();
788cbaf4 765
766 if (myIsDone)
767 {
7fd59977 768 myTangentFaces=myIntersector.TangentFaces();
769 if (myTangentFaces) {
770 return;
771 }
772 //
773 if(RestrictLine) {
774 myListOfPnts.Clear(); // to use LineConstructor
775 }
776 //
788cbaf4 777 const Standard_Integer aNbLin = myIntersector.NbLines();
778 for (Standard_Integer i=1; i <= aNbLin; ++i) {
7fd59977 779 MakeCurve(i, dom1, dom2);
780 }
781 //
782 ComputeTolReached3d();
783 //
0fc4f2e2
P
784 if (bReverse) {
785 Handle(Geom2d_Curve) aC2D1, aC2D2;
786 //
788cbaf4 787 const Standard_Integer aNbLin=mySeqOfCurve.Length();
788 for (Standard_Integer i=1; i<=aNbLin; ++i)
789 {
790 IntTools_Curve& aIC=mySeqOfCurve(i);
791 aC2D1=aIC.FirstCurve2d();
792 aC2D2=aIC.SecondCurve2d();
793 aIC.SetFirstCurve2d(aC2D2);
794 aIC.SetSecondCurve2d(aC2D1);
0fc4f2e2
P
795 }
796 }
788cbaf4 797
0fc4f2e2 798 // Points
7fd59977 799 Standard_Real U1,V1,U2,V2;
800 IntTools_PntOnFace aPntOnF1, aPntOnF2;
0fc4f2e2 801 IntTools_PntOn2Faces aPntOn2Faces;
7fd59977 802 //
788cbaf4 803 const Standard_Integer aNbPnts = myIntersector.NbPnts();
804 for (Standard_Integer i=1; i <= aNbPnts; ++i)
805 {
7fd59977 806 const IntSurf_PntOn2S& aISPnt=myIntersector.Point(i).PntOn2S();
807 const gp_Pnt& aPnt=aISPnt.Value();
808 aISPnt.Parameters(U1,V1,U2,V2);
0fc4f2e2
P
809 aPntOnF1.Init(myFace1, aPnt, U1, V1);
810 aPntOnF2.Init(myFace2, aPnt, U2, V2);
d10203e8 811 //
788cbaf4 812 if (!bReverse)
813 {
814 aPntOn2Faces.SetP1(aPntOnF1);
815 aPntOn2Faces.SetP2(aPntOnF2);
0fc4f2e2 816 }
788cbaf4 817 else
818 {
819 aPntOn2Faces.SetP2(aPntOnF1);
820 aPntOn2Faces.SetP1(aPntOnF2);
0fc4f2e2 821 }
788cbaf4 822
7fd59977 823 myPnts.Append(aPntOn2Faces);
824 }
7fd59977 825 }
826}
788cbaf4 827
7fd59977 828//=======================================================================
829//function :ComputeTolReached3d
830//purpose :
831//=======================================================================
832 void IntTools_FaceFace::ComputeTolReached3d()
833{
128dba6f 834 Standard_Boolean bCase1;
835 Standard_Integer aNbLin, i;
7fd59977 836 GeomAbs_SurfaceType aType1, aType2;
837 //
838 aNbLin=myIntersector.NbLines();
37b6f439 839 if (!aNbLin) {
840 return;
841 }
842 //
7fd59977 843 aType1=myHS1->Surface().GetType();
844 aType2=myHS2->Surface().GetType();
845 //
128dba6f 846 bCase1=((aType1==GeomAbs_Plane && aType2==GeomAbs_SurfaceOfExtrusion) ||
847 (aType2==GeomAbs_Plane && aType1==GeomAbs_SurfaceOfExtrusion));
848 //
4f189102
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849 if (aType1==GeomAbs_Cylinder && aType2==GeomAbs_Cylinder) {
850 if (aNbLin==2){
851 Handle(IntPatch_Line) aIL1, aIL2;
852 IntPatch_IType aTL1, aTL2;
7fd59977 853 //
4f189102
P
854 aIL1=myIntersector.Line(1);
855 aIL2=myIntersector.Line(2);
856 aTL1=aIL1->ArcType();
857 aTL2=aIL2->ArcType();
858 if (aTL1==IntPatch_Lin && aTL2==IntPatch_Lin) {
859 Standard_Real aD, aDTresh, dTol;
860 gp_Lin aL1, aL2;
861 //
862 dTol=1.e-8;
863 aDTresh=1.5e-6;
864 //
865 aL1=Handle(IntPatch_GLine)::DownCast(aIL1)->Line();
866 aL2=Handle(IntPatch_GLine)::DownCast(aIL2)->Line();
867 aD=aL1.Distance(aL2);
868 aD=0.5*aD;
869 if (aD<aDTresh) {
870 myTolReached3d=aD+dTol;
871 }
872 return;
7fd59977 873 }
874 }
4f189102 875 //ZZ
37b6f439 876 if (aNbLin) {// Check the distances
128dba6f 877 Standard_Integer aNbP, j ;
575aec54 878 Standard_Real aT1, aT2, dT, aD2, aD2Max, aEps, aT11, aT12;
4f189102
P
879 //
880 aD2Max=0.;
0c5acd27 881 aNbP=10;
4f189102
P
882 aNbLin=mySeqOfCurve.Length();
883 //
884 for (i=1; i<=aNbLin; ++i) {
885 const IntTools_Curve& aIC=mySeqOfCurve(i);
886 const Handle(Geom_Curve)& aC3D=aIC.Curve();
887 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
888 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
889 //
890 if (aC3D.IsNull()) {
891 continue;
892 }
893 const Handle(Geom_BSplineCurve)& aBC=
894 Handle(Geom_BSplineCurve)::DownCast(aC3D);
895 if (aBC.IsNull()) {
896 continue;
897 }
898 //
899 aT1=aBC->FirstParameter();
900 aT2=aBC->LastParameter();
901 //
37b6f439 902 aEps=0.01*(aT2-aT1);
8e0115e4 903 dT=(aT2-aT1)/aNbP;
8e0115e4 904 for (j=1; j<aNbP; ++j) {
37b6f439 905 aT11=aT1+j*dT;
906 aT12=aT11+dT;
907 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
908 myHS1, myHS2, myFace1, myFace2, myContext);
4f189102
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909 if (aD2>aD2Max) {
910 aD2Max=aD2;
911 }
37b6f439 912 }
4f189102
P
913 }//for (i=1; i<=aNbLin; ++i) {
914 //
915 myTolReached3d=sqrt(aD2Max);
37b6f439 916 }// if (aNbLin)
4f189102
P
917 }// if (aType1==GeomAbs_Cylinder && aType2==GeomAbs_Cylinder) {
918 //
0fc4f2e2 919 //904/G3 f
4f189102 920 else if (aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
7fd59977 921 Standard_Real aTolF1, aTolF2, aTolFMax, aTolTresh;
922 //
923 aTolTresh=1.e-7;
924 //
925 aTolF1 = BRep_Tool::Tolerance(myFace1);
926 aTolF2 = BRep_Tool::Tolerance(myFace2);
927 aTolFMax=Max(aTolF1, aTolF2);
928 //
929 if (aTolFMax>aTolTresh) {
930 myTolReached3d=aTolFMax;
931 }
4f189102 932 }//if (aType1==GeomAbs_Plane && aType2==GeomAbs_Plane) {
0fc4f2e2 933 //t
7fd59977 934 //IFV Bug OCC20297
4f189102
P
935 else if((aType1 == GeomAbs_Cylinder && aType2 == GeomAbs_Plane) ||
936 (aType2 == GeomAbs_Cylinder && aType1 == GeomAbs_Plane)) {
7fd59977 937 if(aNbLin == 1) {
938 const Handle(IntPatch_Line)& aIL1 = myIntersector.Line(1);
939 if(aIL1->ArcType() == IntPatch_Circle) {
940 gp_Circ aCir = Handle(IntPatch_GLine)::DownCast(aIL1)->Circle();
941 gp_XYZ aCirDir = aCir.Axis().Direction().XYZ();
942 gp_XYZ aPlDir;
943 gp_Pln aPln;
944 if(aType1 == GeomAbs_Plane) {
945 aPln = myHS1->Surface().Plane();
946 }
947 else {
948 aPln = myHS2->Surface().Plane();
949 }
950 aPlDir = aPln.Axis().Direction().XYZ();
951 Standard_Real cs = aCirDir*aPlDir;
952 if(cs < 0.) aPlDir.Reverse();
953 Standard_Real eps = 1.e-14;
954 if(!aPlDir.IsEqual(aCirDir, eps)) {
955 Standard_Integer aNbP = 11;
c6541a0c
D
956 Standard_Real dt = 2.*M_PI / (aNbP - 1), t;
957 for(t = 0.; t < 2.*M_PI; t += dt) {
7fd59977 958 Standard_Real d = aPln.Distance(ElCLib::Value(t, aCir));
959 if(myTolReached3d < d) myTolReached3d = d;
960 }
961 myTolReached3d *= 1.1;
962 }
963 } //aIL1->ArcType() == IntPatch_Circle
964 } //aNbLin == 1
4f189102 965 } // aType1 == GeomAbs_Cylinder && aType2 == GeomAbs_Plane)
7fd59977 966 //End IFV Bug OCC20297
0fc4f2e2 967 //
4f189102
P
968 else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Torus) ||
969 (aType2==GeomAbs_Plane && aType1==GeomAbs_Torus)) {
0fc4f2e2
P
970 aNbLin=mySeqOfCurve.Length();
971 if (aNbLin!=1) {
972 return;
973 }
974 //
128dba6f 975 Standard_Integer aNbP;
0fc4f2e2
P
976 Standard_Real aT, aT1, aT2, dT, aUT, aVT, aUP, aVP;
977 Standard_Real aDP, aDT, aDmax;
978 gp_Pln aPln;
979 gp_Torus aTorus;
980 gp_Pnt aP, aPP, aPT;
981 //
982 const IntTools_Curve& aIC=mySeqOfCurve(1);
983 const Handle(Geom_Curve)& aC3D=aIC.Curve();
4f189102
P
984 const Handle(Geom_BSplineCurve)& aBS=
985 Handle(Geom_BSplineCurve)::DownCast(aC3D);
0fc4f2e2
P
986 if (aBS.IsNull()) {
987 return;
988 }
989 //
990 aT1=aBS->FirstParameter();
991 aT2=aBS->LastParameter();
992 //
993 aPln =(aType1==GeomAbs_Plane) ? myHS1->Plane() : myHS2->Plane();
994 aTorus=(aType1==GeomAbs_Plane) ? myHS2->Torus() : myHS1->Torus();
995 //
996 aDmax=-1.;
997 aNbP=11;
998 dT=(aT2-aT1)/(aNbP-1);
999 for (i=0; i<aNbP; ++i) {
1000 aT=aT1+i*dT;
1001 if (i==aNbP-1) {
1002 aT=aT2;
1003 }
1004 //
1005 aC3D->D0(aT, aP);
1006 //
1007 ElSLib::Parameters(aPln, aP, aUP, aVP);
1008 aPP=ElSLib::Value(aUP, aVP, aPln);
1009 aDP=aP.SquareDistance(aPP);
1010 if (aDP>aDmax) {
1011 aDmax=aDP;
1012 }
1013 //
1014 ElSLib::Parameters(aTorus, aP, aUT, aVT);
1015 aPT=ElSLib::Value(aUT, aVT, aTorus);
1016 aDT=aP.SquareDistance(aPT);
1017 if (aDT>aDmax) {
1018 aDmax=aDT;
1019 }
1020 }
1021 //
1022 if (aDmax > myTolReached3d*myTolReached3d) {
1023 myTolReached3d=sqrt(aDmax);
1024 myTolReached3d=1.1*myTolReached3d;
1025 }
1026 }// if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Torus) ||
a9f7b6b5 1027 //
4f189102
P
1028 else if ((aType1==GeomAbs_SurfaceOfRevolution && aType2==GeomAbs_Cylinder) ||
1029 (aType2==GeomAbs_SurfaceOfRevolution && aType1==GeomAbs_Cylinder)) {
128dba6f 1030 Standard_Integer j, aNbP;
4f189102 1031 Standard_Real aT, aT1, aT2, dT, aD2max, aD2;
d10203e8
P
1032 //
1033 aNbLin=mySeqOfCurve.Length();
4f189102 1034 aD2max=0.;
d10203e8
P
1035 aNbP=11;
1036 //
1037 for (i=1; i<=aNbLin; ++i) {
1038 const IntTools_Curve& aIC=mySeqOfCurve(i);
1039 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1040 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1041 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1042 //
1043 if (aC3D.IsNull()) {
1044 continue;
1045 }
4f189102
P
1046 const Handle(Geom_BSplineCurve)& aBC=
1047 Handle(Geom_BSplineCurve)::DownCast(aC3D);
d10203e8
P
1048 if (aBC.IsNull()) {
1049 return;
1050 }
1051 //
1052 aT1=aBC->FirstParameter();
1053 aT2=aBC->LastParameter();
1054 //
1055 dT=(aT2-aT1)/(aNbP-1);
1056 for (j=0; j<aNbP; ++j) {
1057 aT=aT1+j*dT;
1058 if (j==aNbP-1) {
1059 aT=aT2;
1060 }
1061 //
4f189102
P
1062 aD2=MaxSquareDistance(aT, aC3D, aC2D1, aC2D2,
1063 myHS1, myHS2, myFace1, myFace2, myContext);
1064 if (aD2>aD2max) {
1065 aD2max=aD2;
d10203e8
P
1066 }
1067 }//for (j=0; j<aNbP; ++j) {
37b6f439 1068
d10203e8
P
1069 }//for (i=1; i<=aNbLin; ++i) {
1070 //
4f189102
P
1071 aD2=myTolReached3d*myTolReached3d;
1072 if (aD2max > aD2) {
1073 myTolReached3d=sqrt(aD2max);
d10203e8 1074 }
a9f7b6b5 1075 }//if((aType1==GeomAbs_SurfaceOfRevolution ...
0c5acd27 1076 else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Sphere) ||
9c9a29ea 1077 (aType2==GeomAbs_Plane && aType1==GeomAbs_Sphere)) {
128dba6f 1078 Standard_Integer j, aNbP;
9c9a29ea 1079 Standard_Real aT1, aT2, dT, aD2max, aD2, aEps, aT11, aT12;
0c5acd27 1080 //
1081 aNbLin=mySeqOfCurve.Length();
1082 aD2max=0.;
1083 aNbP=10;
1084 //
1085 for (i=1; i<=aNbLin; ++i) {
1086 const IntTools_Curve& aIC=mySeqOfCurve(i);
1087 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1088 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1089 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1090 //
1091 const Handle(Geom2d_BSplineCurve)& aBC2D1=
9c9a29ea 1092 Handle(Geom2d_BSplineCurve)::DownCast(aC2D1);
0c5acd27 1093 const Handle(Geom2d_BSplineCurve)& aBC2D2=
9c9a29ea 1094 Handle(Geom2d_BSplineCurve)::DownCast(aC2D2);
0c5acd27 1095 //
1096 if (aBC2D1.IsNull() && aBC2D2.IsNull()) {
9c9a29ea 1097 return;
0c5acd27 1098 }
1099 //
1100 if (!aBC2D1.IsNull()) {
9c9a29ea 1101 aT1=aBC2D1->FirstParameter();
1102 aT2=aBC2D1->LastParameter();
0c5acd27 1103 }
1104 else {
9c9a29ea 1105 aT1=aBC2D2->FirstParameter();
1106 aT2=aBC2D2->LastParameter();
0c5acd27 1107 }
1108 //
1109 aEps=0.01*(aT2-aT1);
9c9a29ea 1110 dT=(aT2-aT1)/aNbP;
0c5acd27 1111 for (j=0; j<aNbP; ++j) {
9c9a29ea 1112 aT11=aT1+j*dT;
1113 aT12=aT11+dT;
1114 if (j==aNbP-1) {
1115 aT12=aT2;
1116 }
1117 //
1118 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
1119 myHS1, myHS2, myFace1, myFace2, myContext);
1120 if (aD2>aD2max) {
1121 aD2max=aD2;
1122 }
0c5acd27 1123 }//for (j=0; j<aNbP; ++j) {
1124
1125 }//for (i=1; i<=aNbLin; ++i) {
1126 //
1127 aD2=myTolReached3d*myTolReached3d;
1128 if (aD2max > aD2) {
1129 myTolReached3d=sqrt(aD2max);
1130 }
1131 }//else if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Sphere) ...
128dba6f 1132 else if (!myApprox || bCase1) {
1133 //else if (!myApprox) {
1134 Standard_Integer aNbP, j;
4e57c75e 1135 Standard_Real aT1, aT2, dT, aD2, aD2Max, aEps, aT11, aT12;
1136 //
1137 aD2Max=0.;
1138 aNbLin=mySeqOfCurve.Length();
1139 //
1140 for (i=1; i<=aNbLin; ++i) {
1141 const IntTools_Curve& aIC=mySeqOfCurve(i);
1142 const Handle(Geom_Curve)& aC3D=aIC.Curve();
1143 const Handle(Geom2d_Curve)& aC2D1=aIC.FirstCurve2d();
1144 const Handle(Geom2d_Curve)& aC2D2=aIC.SecondCurve2d();
1145 //
1146 if (aC3D.IsNull()) {
1147 continue;
1148 }
1149 const Handle(Geom_BSplineCurve)& aBC=
1150 Handle(Geom_BSplineCurve)::DownCast(aC3D);
1151 if (aBC.IsNull()) {
1152 continue;
1153 }
1154 //
1155 aT1=aBC->FirstParameter();
1156 aT2=aBC->LastParameter();
1157 //
1158 aEps=0.0001*(aT2-aT1);
1159 aNbP=11;
1160 dT=(aT2-aT1)/aNbP;
1161 for (j=1; j<aNbP-1; ++j) {
1162 aT11=aT1+j*dT;
1163 aT12=aT11+dT;
1164 aD2=FindMaxSquareDistance(aT11, aT12, aEps, aC3D, aC2D1, aC2D2,
1165 myHS1, myHS2, myFace1, myFace2, myContext);
1166 if (aD2>aD2Max) {
1167 aD2Max=aD2;
1168 }
1169 }
1170 }//for (i=1; i<=aNbLin; ++i) {
1171 myTolReached3d=sqrt(aD2Max);
1172 }
7fd59977 1173}
1174//=======================================================================
1175//function : MakeCurve
1176//purpose :
1177//=======================================================================
1178 void IntTools_FaceFace::MakeCurve(const Standard_Integer Index,
1179 const Handle(Adaptor3d_TopolTool)& dom1,
1180 const Handle(Adaptor3d_TopolTool)& dom2)
1181{
989341c5 1182 Standard_Boolean bDone, rejectSurface, reApprox, bAvoidLineConstructor,
94218044 1183 bPCurvesOk;
7fd59977 1184 Standard_Boolean ok;
1185 Standard_Integer i, j, aNbParts;
1186 Standard_Real fprm, lprm;
1187 Standard_Real Tolpc;
1188 Handle(IntPatch_Line) L;
1189 IntPatch_IType typl;
1190 Handle(Geom_Curve) newc;
1191 //
1192 const Standard_Real TOLCHECK =0.0000001;
1193 const Standard_Real TOLANGCHECK=0.1;
1194 //
1195 rejectSurface = Standard_False;
1196 reApprox = Standard_False;
989341c5 1197 //
1198 bPCurvesOk = Standard_True;
94218044 1199
1200reapprox:;
1201
7fd59977 1202 Tolpc = myTolApprox;
1203 bAvoidLineConstructor = Standard_False;
1204 L = myIntersector.Line(Index);
1205 typl = L->ArcType();
1206 //
1207 if(typl==IntPatch_Walking) {
1208 Handle(IntPatch_Line) anewL;
1209 //
1210 const Handle(IntPatch_WLine)& aWLine=
1211 Handle(IntPatch_WLine)::DownCast(L);
4e18e72a 1212#ifdef DEB_DUMPWLINE
1213 DumpWLine(aWLine);
1214#endif
7fd59977 1215 anewL = ComputePurgedWLine(aWLine);
1216 if(anewL.IsNull()) {
1217 return;
1218 }
1219 L = anewL;
4e18e72a 1220#ifdef DEB_DUMPWLINE
94218044 1221 const Handle(IntPatch_WLine)& aWLineX = Handle(IntPatch_WLine)::DownCast(L);
1222 DumpWLine(aWLineX);
4e18e72a 1223#endif
7fd59977 1224 //
1225 if(!myListOfPnts.IsEmpty()) {
1226 bAvoidLineConstructor = Standard_True;
1227 }
1228
1229 Standard_Integer nbp = aWLine->NbPnts();
1230 const IntSurf_PntOn2S& p1 = aWLine->Point(1);
1231 const IntSurf_PntOn2S& p2 = aWLine->Point(nbp);
1232
1233 const gp_Pnt& P1 = p1.Value();
1234 const gp_Pnt& P2 = p2.Value();
1235
1236 if(P1.SquareDistance(P2) < 1.e-14) {
1237 bAvoidLineConstructor = Standard_False;
1238 }
1239
1240 }
1241 //
1242 // Line Constructor
1243 if(!bAvoidLineConstructor) {
1244 myLConstruct.Perform(L);
1245 //
1246 bDone=myLConstruct.IsDone();
1247 aNbParts=myLConstruct.NbParts();
1248 if (!bDone|| !aNbParts) {
1249 return;
1250 }
1251 }
1252 // Do the Curve
94218044 1253
1254
7fd59977 1255 typl=L->ArcType();
1256 switch (typl) {
94218044 1257 //########################################
1258 // Line, Parabola, Hyperbola
1259 //########################################
7fd59977 1260 case IntPatch_Lin:
1261 case IntPatch_Parabola:
1262 case IntPatch_Hyperbola: {
1263 if (typl == IntPatch_Lin) {
1264 newc =
94218044 1265 new Geom_Line (Handle(IntPatch_GLine)::DownCast(L)->Line());
7fd59977 1266 }
1267
1268 else if (typl == IntPatch_Parabola) {
1269 newc =
94218044 1270 new Geom_Parabola(Handle(IntPatch_GLine)::DownCast(L)->Parabola());
7fd59977 1271 }
94218044 1272
7fd59977 1273 else if (typl == IntPatch_Hyperbola) {
1274 newc =
94218044 1275 new Geom_Hyperbola (Handle(IntPatch_GLine)::DownCast(L)->Hyperbola());
7fd59977 1276 }
1277 //
1278 // myTolReached3d
1279 if (typl == IntPatch_Lin) {
1280 TolR3d (myFace1, myFace2, myTolReached3d);
1281 }
1282 //
1283 aNbParts=myLConstruct.NbParts();
1284 for (i=1; i<=aNbParts; i++) {
1285 myLConstruct.Part(i, fprm, lprm);
94218044 1286
7fd59977 1287 if (!Precision::IsNegativeInfinite(fprm) &&
94218044 1288 !Precision::IsPositiveInfinite(lprm)) {
1289 //
1290 IntTools_Curve aCurve;
1291 //
1292 Handle(Geom_TrimmedCurve) aCT3D=new Geom_TrimmedCurve(newc, fprm, lprm);
1293 aCurve.SetCurve(aCT3D);
1294 if (typl == IntPatch_Parabola) {
1295 Standard_Real aTolF1, aTolF2, aTolBase;
1296
1297 aTolF1 = BRep_Tool::Tolerance(myFace1);
1298 aTolF2 = BRep_Tool::Tolerance(myFace2);
1299 aTolBase=aTolF1+aTolF2;
1300 myTolReached3d=IntTools_Tools::CurveTolerance(aCT3D, aTolBase);
1301 }
1302 //
1303 aCurve.SetCurve(new Geom_TrimmedCurve(newc, fprm, lprm));
1304 if(myApprox1) {
1305 Handle (Geom2d_Curve) C2d;
1306 BuildPCurves(fprm, lprm, Tolpc, myHS1->ChangeSurface().Surface(), newc, C2d);
1307 if(Tolpc>myTolReached2d || myTolReached2d==0.) {
1308 myTolReached2d=Tolpc;
1309 }
1310 //
1311 aCurve.SetFirstCurve2d(new Geom2d_TrimmedCurve(C2d,fprm,lprm));
1312 }
1313 else {
1314 Handle(Geom2d_BSplineCurve) H1;
1315 //
1316 aCurve.SetFirstCurve2d(H1);
1317 }
7fd59977 1318
94218044 1319 if(myApprox2) {
1320 Handle (Geom2d_Curve) C2d;
1321 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1322 if(Tolpc>myTolReached2d || myTolReached2d==0.) {
1323 myTolReached2d=Tolpc;
1324 }
1325 //
1326 aCurve.SetSecondCurve2d(new Geom2d_TrimmedCurve(C2d,fprm,lprm));
1327 }
1328 else {
1329 Handle(Geom2d_BSplineCurve) H1;
1330 //
1331 aCurve.SetSecondCurve2d(H1);
1332 }
1333 mySeqOfCurve.Append(aCurve);
1334 } // end of if (!Precision::IsNegativeInfinite(fprm) && !Precision::IsPositiveInfinite(lprm))
7fd59977 1335 else {
94218044 1336 // on regarde si on garde
1337 //
1338 Standard_Boolean bFNIt, bLPIt;
1339 Standard_Real aTestPrm, dT=100.;
7fd59977 1340
94218044 1341 bFNIt=Precision::IsNegativeInfinite(fprm);
1342 bLPIt=Precision::IsPositiveInfinite(lprm);
1343
1344 aTestPrm=0.;
1345
1346 if (bFNIt && !bLPIt) {
1347 aTestPrm=lprm-dT;
1348 }
1349 else if (!bFNIt && bLPIt) {
1350 aTestPrm=fprm+dT;
1351 }
1352
1353 gp_Pnt ptref(newc->Value(aTestPrm));
1354 //
1355 GeomAbs_SurfaceType typS1 = myHS1->GetType();
1356 GeomAbs_SurfaceType typS2 = myHS2->GetType();
1357 if( typS1 == GeomAbs_SurfaceOfExtrusion ||
1358 typS1 == GeomAbs_OffsetSurface ||
1359 typS1 == GeomAbs_SurfaceOfRevolution ||
1360 typS2 == GeomAbs_SurfaceOfExtrusion ||
1361 typS2 == GeomAbs_OffsetSurface ||
1362 typS2 == GeomAbs_SurfaceOfRevolution)
1363 {
1364 Handle(Geom2d_BSplineCurve) H1;
1365 mySeqOfCurve.Append(IntTools_Curve(newc, H1, H1));
1366 continue;
1367 }
1368
1369 Standard_Real u1, v1, u2, v2, Tol;
1370
1371 Tol = Precision::Confusion();
1372 Parameters(myHS1, myHS2, ptref, u1, v1, u2, v2);
1373 ok = (dom1->Classify(gp_Pnt2d(u1, v1), Tol) != TopAbs_OUT);
1374 if(ok) {
1375 ok = (dom2->Classify(gp_Pnt2d(u2,v2),Tol) != TopAbs_OUT);
1376 }
1377 if (ok) {
1378 Handle(Geom2d_BSplineCurve) H1;
1379 mySeqOfCurve.Append(IntTools_Curve(newc, H1, H1));
1380 }
7fd59977 1381 }
1382 }// end of for (i=1; i<=myLConstruct.NbParts(); i++)
1383 }// case IntPatch_Lin: case IntPatch_Parabola: case IntPatch_Hyperbola:
94218044 1384 break;
7fd59977 1385
94218044 1386 //########################################
1387 // Circle and Ellipse
1388 //########################################
7fd59977 1389 case IntPatch_Circle:
1390 case IntPatch_Ellipse: {
1391
1392 if (typl == IntPatch_Circle) {
1393 newc = new Geom_Circle
94218044 1394 (Handle(IntPatch_GLine)::DownCast(L)->Circle());
7fd59977 1395 }
1396 else { //IntPatch_Ellipse
1397 newc = new Geom_Ellipse
94218044 1398 (Handle(IntPatch_GLine)::DownCast(L)->Ellipse());
7fd59977 1399 }
1400 //
1401 // myTolReached3d
1402 TolR3d (myFace1, myFace2, myTolReached3d);
1403 //
1404 aNbParts=myLConstruct.NbParts();
1405 //
1406 Standard_Real aPeriod, aNul;
1407 TColStd_SequenceOfReal aSeqFprm, aSeqLprm;
94218044 1408
7fd59977 1409 aNul=0.;
c6541a0c 1410 aPeriod=M_PI+M_PI;
7fd59977 1411
1412 for (i=1; i<=aNbParts; i++) {
1413 myLConstruct.Part(i, fprm, lprm);
1414
1415 if (fprm < aNul && lprm > aNul) {
94218044 1416 // interval that goes through 0. is divided on two intervals;
1417 while (fprm<aNul || fprm>aPeriod) fprm=fprm+aPeriod;
1418 while (lprm<aNul || lprm>aPeriod) lprm=lprm+aPeriod;
1419 //
1420 if((aPeriod - fprm) > Tolpc) {
1421 aSeqFprm.Append(fprm);
1422 aSeqLprm.Append(aPeriod);
1423 }
1424 else {
1425 gp_Pnt P1 = newc->Value(fprm);
1426 gp_Pnt P2 = newc->Value(aPeriod);
1427 Standard_Real aTolDist = BRep_Tool::Tolerance(myFace1) + BRep_Tool::Tolerance(myFace2);
1428 aTolDist = (myTolReached3d > aTolDist) ? myTolReached3d : aTolDist;
1429
1430 if(P1.Distance(P2) > aTolDist) {
1431 Standard_Real anewpar = fprm;
1432
1433 if(ParameterOutOfBoundary(fprm, newc, myFace1, myFace2, lprm, Standard_False, anewpar, myContext)) {
1434 fprm = anewpar;
1435 }
1436 aSeqFprm.Append(fprm);
1437 aSeqLprm.Append(aPeriod);
1438 }
1439 }
7fd59977 1440
94218044 1441 //
1442 if((lprm - aNul) > Tolpc) {
1443 aSeqFprm.Append(aNul);
1444 aSeqLprm.Append(lprm);
1445 }
1446 else {
1447 gp_Pnt P1 = newc->Value(aNul);
1448 gp_Pnt P2 = newc->Value(lprm);
1449 Standard_Real aTolDist = BRep_Tool::Tolerance(myFace1) + BRep_Tool::Tolerance(myFace2);
1450 aTolDist = (myTolReached3d > aTolDist) ? myTolReached3d : aTolDist;
1451
1452 if(P1.Distance(P2) > aTolDist) {
1453 Standard_Real anewpar = lprm;
1454
1455 if(ParameterOutOfBoundary(lprm, newc, myFace1, myFace2, fprm, Standard_True, anewpar, myContext)) {
1456 lprm = anewpar;
1457 }
1458 aSeqFprm.Append(aNul);
1459 aSeqLprm.Append(lprm);
1460 }
1461 }
7fd59977 1462 }
1463 else {
94218044 1464 // usual interval
1465 aSeqFprm.Append(fprm);
1466 aSeqLprm.Append(lprm);
7fd59977 1467 }
1468 }
94218044 1469
7fd59977 1470 //
1471 aNbParts=aSeqFprm.Length();
1472 for (i=1; i<=aNbParts; i++) {
1473 fprm=aSeqFprm(i);
1474 lprm=aSeqLprm(i);
1475 //
1476 Standard_Real aRealEpsilon=RealEpsilon();
c6541a0c 1477 if (Abs(fprm) > aRealEpsilon || Abs(lprm-2.*M_PI) > aRealEpsilon) {
94218044 1478 //==============================================
1479 ////
1480 IntTools_Curve aCurve;
1481 Handle(Geom_TrimmedCurve) aTC3D=new Geom_TrimmedCurve(newc,fprm,lprm);
1482 aCurve.SetCurve(aTC3D);
1483 fprm=aTC3D->FirstParameter();
1484 lprm=aTC3D->LastParameter ();
1485 ////
1486 if (typl == IntPatch_Circle || typl == IntPatch_Ellipse) {////
1487 if(myApprox1) {
1488 Handle (Geom2d_Curve) C2d;
1489 BuildPCurves(fprm,lprm,Tolpc,myHS1->ChangeSurface().Surface(),newc,C2d);
1490 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1491 myTolReached2d=Tolpc;
1492 }
1493 //
1494 aCurve.SetFirstCurve2d(C2d);
1495 }
1496 else { ////
1497 Handle(Geom2d_BSplineCurve) H1;
1498 aCurve.SetFirstCurve2d(H1);
1499 }
7fd59977 1500
1501
94218044 1502 if(myApprox2) {
1503 Handle (Geom2d_Curve) C2d;
1504 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1505 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1506 myTolReached2d=Tolpc;
1507 }
1508 //
1509 aCurve.SetSecondCurve2d(C2d);
1510 }
1511 else {
1512 Handle(Geom2d_BSplineCurve) H1;
1513 aCurve.SetSecondCurve2d(H1);
1514 }
1515 }
1516
1517 else {
1518 Handle(Geom2d_BSplineCurve) H1;
1519 aCurve.SetFirstCurve2d(H1);
1520 aCurve.SetSecondCurve2d(H1);
1521 }
1522 mySeqOfCurve.Append(aCurve);
1523 //==============================================
c6541a0c 1524 } //if (Abs(fprm) > RealEpsilon() || Abs(lprm-2.*M_PI) > RealEpsilon())
7fd59977 1525
1526 else {
94218044 1527 // on regarde si on garde
1528 //
1529 if (aNbParts==1) {
1530 // if (Abs(fprm) < RealEpsilon() && Abs(lprm-2.*M_PI) < RealEpsilon()) {
1531 if (Abs(fprm) <= aRealEpsilon && Abs(lprm-2.*M_PI) <= aRealEpsilon) {
1532 IntTools_Curve aCurve;
1533 Handle(Geom_TrimmedCurve) aTC3D=new Geom_TrimmedCurve(newc,fprm,lprm);
1534 aCurve.SetCurve(aTC3D);
1535 fprm=aTC3D->FirstParameter();
1536 lprm=aTC3D->LastParameter ();
1537
1538 if(myApprox1) {
1539 Handle (Geom2d_Curve) C2d;
1540 BuildPCurves(fprm,lprm,Tolpc,myHS1->ChangeSurface().Surface(),newc,C2d);
1541 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1542 myTolReached2d=Tolpc;
1543 }
1544 //
1545 aCurve.SetFirstCurve2d(C2d);
1546 }
1547 else { ////
1548 Handle(Geom2d_BSplineCurve) H1;
1549 aCurve.SetFirstCurve2d(H1);
1550 }
1551
1552 if(myApprox2) {
1553 Handle (Geom2d_Curve) C2d;
1554 BuildPCurves(fprm,lprm,Tolpc,myHS2->ChangeSurface().Surface(),newc,C2d);
1555 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1556 myTolReached2d=Tolpc;
1557 }
1558 //
1559 aCurve.SetSecondCurve2d(C2d);
1560 }
1561 else {
1562 Handle(Geom2d_BSplineCurve) H1;
1563 aCurve.SetSecondCurve2d(H1);
1564 }
1565 mySeqOfCurve.Append(aCurve);
1566 break;
1567 }
1568 }
1569 //
1570 Standard_Real aTwoPIdiv17, u1, v1, u2, v2, Tol;
7fd59977 1571
94218044 1572 aTwoPIdiv17=2.*M_PI/17.;
7fd59977 1573
94218044 1574 for (j=0; j<=17; j++) {
1575 gp_Pnt ptref (newc->Value (j*aTwoPIdiv17));
1576 Tol = Precision::Confusion();
1577
1578 Parameters(myHS1, myHS2, ptref, u1, v1, u2, v2);
1579 ok = (dom1->Classify(gp_Pnt2d(u1,v1),Tol) != TopAbs_OUT);
1580 if(ok) {
1581 ok = (dom2->Classify(gp_Pnt2d(u2,v2),Tol) != TopAbs_OUT);
1582 }
1583 if (ok) {
1584 IntTools_Curve aCurve;
1585 aCurve.SetCurve(newc);
1586 //==============================================
1587 if (typl == IntPatch_Circle || typl == IntPatch_Ellipse) {
1588
1589 if(myApprox1) {
1590 Handle (Geom2d_Curve) C2d;
1591 BuildPCurves(fprm, lprm, Tolpc, myHS1->ChangeSurface().Surface(), newc, C2d);
1592 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1593 myTolReached2d=Tolpc;
1594 }
1595 //
1596 aCurve.SetFirstCurve2d(C2d);
1597 }
1598 else {
1599 Handle(Geom2d_BSplineCurve) H1;
1600 aCurve.SetFirstCurve2d(H1);
1601 }
1602
1603 if(myApprox2) {
1604 Handle (Geom2d_Curve) C2d;
1605 BuildPCurves(fprm, lprm, Tolpc,myHS2->ChangeSurface().Surface(), newc, C2d);
1606 if(Tolpc>myTolReached2d || myTolReached2d==0) {
1607 myTolReached2d=Tolpc;
1608 }
1609 //
1610 aCurve.SetSecondCurve2d(C2d);
1611 }
1612
1613 else {
1614 Handle(Geom2d_BSplineCurve) H1;
1615 aCurve.SetSecondCurve2d(H1);
1616 }
1617 }// end of if (typl == IntPatch_Circle || typl == IntPatch_Ellipse)
1618
1619 else {
1620 Handle(Geom2d_BSplineCurve) H1;
1621 //
1622 aCurve.SetFirstCurve2d(H1);
1623 aCurve.SetSecondCurve2d(H1);
1624 }
1625 //==============================================
1626 //
1627 mySeqOfCurve.Append(aCurve);
1628 break;
1629
1630 }// end of if (ok) {
1631 }// end of for (Standard_Integer j=0; j<=17; j++)
1632 }// end of else { on regarde si on garde
1633 }// for (i=1; i<=myLConstruct.NbParts(); i++)
1634 }// IntPatch_Circle: IntPatch_Ellipse:
1635 break;
7fd59977 1636
7fd59977 1637 case IntPatch_Analytic: {
1638 IntSurf_Quadric quad1,quad2;
1639 GeomAbs_SurfaceType typs = myHS1->Surface().GetType();
94218044 1640
7fd59977 1641 switch (typs) {
94218044 1642 case GeomAbs_Plane:
1643 quad1.SetValue(myHS1->Surface().Plane());
1644 break;
1645 case GeomAbs_Cylinder:
1646 quad1.SetValue(myHS1->Surface().Cylinder());
1647 break;
1648 case GeomAbs_Cone:
1649 quad1.SetValue(myHS1->Surface().Cone());
1650 break;
1651 case GeomAbs_Sphere:
1652 quad1.SetValue(myHS1->Surface().Sphere());
1653 break;
1654 default:
1655 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve 1");
1656 }
1657
7fd59977 1658 typs = myHS2->Surface().GetType();
94218044 1659
7fd59977 1660 switch (typs) {
94218044 1661 case GeomAbs_Plane:
1662 quad2.SetValue(myHS2->Surface().Plane());
1663 break;
1664 case GeomAbs_Cylinder:
1665 quad2.SetValue(myHS2->Surface().Cylinder());
1666 break;
1667 case GeomAbs_Cone:
1668 quad2.SetValue(myHS2->Surface().Cone());
1669 break;
1670 case GeomAbs_Sphere:
1671 quad2.SetValue(myHS2->Surface().Sphere());
1672 break;
1673 default:
1674 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve 2");
1675 }
7fd59977 1676 //
1677 //=========
1678 IntPatch_ALineToWLine convert (quad1, quad2);
94218044 1679
7fd59977 1680 if (!myApprox) {
1681 aNbParts=myLConstruct.NbParts();
1682 for (i=1; i<=aNbParts; i++) {
94218044 1683 myLConstruct.Part(i, fprm, lprm);
1684 Handle(IntPatch_WLine) WL =
1685 convert.MakeWLine(Handle(IntPatch_ALine)::DownCast(L), fprm, lprm);
1686 //
1687 Handle(Geom2d_BSplineCurve) H1;
1688 Handle(Geom2d_BSplineCurve) H2;
7fd59977 1689
94218044 1690 if(myApprox1) {
1691 H1 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_True);
1692 }
1693
1694 if(myApprox2) {
1695 H2 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_False);
1696 }
1697 //
1698 mySeqOfCurve.Append(IntTools_Curve(MakeBSpline(WL,1,WL->NbPnts()), H1, H2));
7fd59977 1699 }
1700 } // if (!myApprox)
1701
1702 else { // myApprox=TRUE
1703 GeomInt_WLApprox theapp3d;
1704 //
1705 Standard_Real tol2d = myTolApprox;
1706 //
1707 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_True);
94218044 1708
7fd59977 1709 aNbParts=myLConstruct.NbParts();
1710 for (i=1; i<=aNbParts; i++) {
94218044 1711 myLConstruct.Part(i, fprm, lprm);
1712 Handle(IntPatch_WLine) WL =
1713 convert.MakeWLine(Handle(IntPatch_ALine):: DownCast(L),fprm,lprm);
7fd59977 1714
94218044 1715 theapp3d.Perform(myHS1,myHS2,WL,Standard_True,myApprox1,myApprox2, 1, WL->NbPnts());
7fd59977 1716
94218044 1717 if (!theapp3d.IsDone()) {
1718 //
1719 Handle(Geom2d_BSplineCurve) H1;
1720 Handle(Geom2d_BSplineCurve) H2;
7fd59977 1721
94218044 1722 if(myApprox1) {
1723 H1 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_True);
1724 }
7fd59977 1725
94218044 1726 if(myApprox2) {
1727 H2 = MakeBSpline2d(WL, 1, WL->NbPnts(), Standard_False);
1728 }
1729 //
1730 mySeqOfCurve.Append(IntTools_Curve(MakeBSpline(WL,1,WL->NbPnts()), H1, H2));
1731 }
1732
1733 else {
1734 if(myApprox1 || myApprox2) {
1735 if( theapp3d.TolReached2d()>myTolReached2d || myTolReached2d==0) {
1736 myTolReached2d = theapp3d.TolReached2d();
1737 }
1738 }
1739
1740 if( theapp3d.TolReached3d()>myTolReached3d || myTolReached3d==0) {
1741 myTolReached3d = theapp3d.TolReached3d();
1742 }
7fd59977 1743
94218044 1744 Standard_Integer aNbMultiCurves, nbpoles;
1745 aNbMultiCurves=theapp3d.NbMultiCurves();
1746 for (j=1; j<=aNbMultiCurves; j++) {
1747 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
1748 nbpoles = mbspc.NbPoles();
1749
1750 TColgp_Array1OfPnt tpoles(1, nbpoles);
1751 mbspc.Curve(1, tpoles);
1752 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
1753 mbspc.Knots(),
1754 mbspc.Multiplicities(),
1755 mbspc.Degree());
1756
1757 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
1758 Check.FixTangent(Standard_True,Standard_True);
1759 //
1760 IntTools_Curve aCurve;
1761 aCurve.SetCurve(BS);
1762
1763 if(myApprox1) {
1764 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
1765 mbspc.Curve(2,tpoles2d);
1766 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
1767 mbspc.Knots(),
1768 mbspc.Multiplicities(),
1769 mbspc.Degree());
1770
1771 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1772 newCheck.FixTangent(Standard_True,Standard_True);
1773 //
1774 aCurve.SetFirstCurve2d(BS2);
1775 }
1776 else {
1777 Handle(Geom2d_BSplineCurve) H1;
1778 aCurve.SetFirstCurve2d(H1);
1779 }
1780
1781 if(myApprox2) {
1782 TColgp_Array1OfPnt2d tpoles2d(1, nbpoles);
1783 Standard_Integer TwoOrThree;
1784 TwoOrThree=myApprox1 ? 3 : 2;
1785 mbspc.Curve(TwoOrThree, tpoles2d);
1786 Handle(Geom2d_BSplineCurve) BS2 =new Geom2d_BSplineCurve(tpoles2d,
1787 mbspc.Knots(),
1788 mbspc.Multiplicities(),
1789 mbspc.Degree());
1790
1791 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
1792 newCheck.FixTangent(Standard_True,Standard_True);
1793 //
1794 aCurve.SetSecondCurve2d(BS2);
1795 }
1796 else {
1797 Handle(Geom2d_BSplineCurve) H2;
1798 aCurve.SetSecondCurve2d(H2);
1799 }
1800 //
1801 mySeqOfCurve.Append(aCurve);
1802
1803 }// for (j=1; j<=aNbMultiCurves; j++) {
1804 }// else from if (!theapp3d.IsDone())
7fd59977 1805 }// for (i=1; i<=aNbParts; i++) {
1806 }// else { // myApprox=TRUE
1807 }// case IntPatch_Analytic:
94218044 1808 break;
7fd59977 1809
1810 case IntPatch_Walking:{
1811 Handle(IntPatch_WLine) WL =
1812 Handle(IntPatch_WLine)::DownCast(L);
1813 //
1814 Standard_Integer ifprm, ilprm;
1815 //
1816 if (!myApprox) {
1817 aNbParts = 1;
1818 if(!bAvoidLineConstructor){
94218044 1819 aNbParts=myLConstruct.NbParts();
7fd59977 1820 }
1821 for (i=1; i<=aNbParts; ++i) {
94218044 1822 Handle(Geom2d_BSplineCurve) H1, H2;
1823 Handle(Geom_Curve) aBSp;
1824 //
1825 if(bAvoidLineConstructor) {
1826 ifprm = 1;
1827 ilprm = WL->NbPnts();
1828 }
1829 else {
1830 myLConstruct.Part(i, fprm, lprm);
1831 ifprm=(Standard_Integer)fprm;
1832 ilprm=(Standard_Integer)lprm;
1833 }
1834 //
1835 if(myApprox1) {
1836 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
1837 }
1838 //
1839 if(myApprox2) {
1840 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
1841 }
1842 //
1843 aBSp=MakeBSpline(WL, ifprm, ilprm);
1844 IntTools_Curve aIC(aBSp, H1, H2);
1845 mySeqOfCurve.Append(aIC);
7fd59977 1846 }// for (i=1; i<=aNbParts; ++i) {
1847 }// if (!myApprox) {
1848 //
1849 else { // X
1850 Standard_Boolean bIsDecomposited;
1851 Standard_Integer nbiter, aNbSeqOfL;
1852 Standard_Real tol2d;
1853 IntPatch_SequenceOfLine aSeqOfL;
1854 GeomInt_WLApprox theapp3d;
1855 Approx_ParametrizationType aParType = Approx_ChordLength;
1856 //
1857 Standard_Boolean anApprox1 = myApprox1;
1858 Standard_Boolean anApprox2 = myApprox2;
1859
1860 tol2d = myTolApprox;
1861
1862 GeomAbs_SurfaceType typs1, typs2;
1863 typs1 = myHS1->Surface().GetType();
1864 typs2 = myHS2->Surface().GetType();
1865 Standard_Boolean anWithPC = Standard_True;
1866
1867 if(typs1 == GeomAbs_Cylinder && typs2 == GeomAbs_Sphere) {
94218044 1868 anWithPC =
1869 ApproxWithPCurves(myHS1->Surface().Cylinder(), myHS2->Surface().Sphere());
7fd59977 1870 }
1871 else if (typs1 == GeomAbs_Sphere && typs2 == GeomAbs_Cylinder) {
94218044 1872 anWithPC =
1873 ApproxWithPCurves(myHS2->Surface().Cylinder(), myHS1->Surface().Sphere());
7fd59977 1874 }
1875 if(!anWithPC) {
94218044 1876 //aParType = Approx_Centripetal;
1877 myTolApprox = 1.e-5;
1878 anApprox1 = Standard_False;
1879 anApprox2 = Standard_False;
1880 //
1881 tol2d = myTolApprox;
7fd59977 1882 }
94218044 1883
7fd59977 1884 if(myHS1 == myHS2) {
94218044 1885 //
1886 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1887 rejectSurface = Standard_True;
7fd59977 1888 }
1889 else {
94218044 1890 if(reApprox && !rejectSurface)
1891 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1892 else {
1893 Standard_Integer iDegMax, iDegMin, iNbIter;
1894 //
1895 ApproxParameters(myHS1, myHS2, iDegMin, iDegMax, iNbIter);
1896 theapp3d.SetParameters(myTolApprox, tol2d, iDegMin, iDegMax, iNbIter, Standard_True, aParType);
1897 //
1898 }
7fd59977 1899 }
1900 //
1901 Standard_Real aReachedTol = Precision::Confusion();
1902 bIsDecomposited=DecompositionOfWLine(WL,
94218044 1903 myHS1,
1904 myHS2,
1905 myFace1,
1906 myFace2,
1907 myLConstruct,
1908 bAvoidLineConstructor,
1909 aSeqOfL,
1910 aReachedTol,
1911 myContext);
7fd59977 1912 if ( bIsDecomposited && ( myTolReached3d < aReachedTol ) )
94218044 1913 myTolReached3d = aReachedTol;
7fd59977 1914
1915 //
1916 aNbSeqOfL=aSeqOfL.Length();
1917 //
1918 if (bIsDecomposited) {
94218044 1919 nbiter=aNbSeqOfL;
7fd59977 1920 }
1921 else {
94218044 1922 nbiter=1;
1923 aNbParts=1;
1924 if (!bAvoidLineConstructor) {
1925 aNbParts=myLConstruct.NbParts();
1926 nbiter=aNbParts;
1927 }
7fd59977 1928 }
1929 //
1930 // nbiter=(bIsDecomposited) ? aSeqOfL.Length() :
1931 // ((bAvoidLineConstructor) ? 1 :aNbParts);
1932 //
1933 for(i = 1; i <= nbiter; ++i) {
94218044 1934 if(bIsDecomposited) {
1935 WL = Handle(IntPatch_WLine)::DownCast(aSeqOfL.Value(i));
1936 ifprm = 1;
1937 ilprm = WL->NbPnts();
1938 }
1939 else {
1940 if(bAvoidLineConstructor) {
1941 ifprm = 1;
1942 ilprm = WL->NbPnts();
1943 }
1944 else {
1945 myLConstruct.Part(i, fprm, lprm);
1946 ifprm = (Standard_Integer)fprm;
1947 ilprm = (Standard_Integer)lprm;
1948 }
1949 }
1950 //-- lbr :
1951 //-- Si une des surfaces est un plan , on approxime en 2d
1952 //-- sur cette surface et on remonte les points 2d en 3d.
1953 if(typs1 == GeomAbs_Plane) {
1954 theapp3d.Perform(myHS1, myHS2, WL, Standard_False,Standard_True, myApprox2,ifprm,ilprm);
1955 }
1956 else if(typs2 == GeomAbs_Plane) {
1957 theapp3d.Perform(myHS1,myHS2,WL,Standard_False,myApprox1,Standard_True,ifprm,ilprm);
1958 }
1959 else {
1960 //
1961 if (myHS1 != myHS2){
1962 if ((typs1==GeomAbs_BezierSurface || typs1==GeomAbs_BSplineSurface) &&
1963 (typs2==GeomAbs_BezierSurface || typs2==GeomAbs_BSplineSurface)) {
1964
1965 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_True, aParType);
1966
1967 Standard_Boolean bUseSurfaces;
1968 bUseSurfaces=NotUseSurfacesForApprox(myFace1, myFace2, WL, ifprm, ilprm);
1969 if (bUseSurfaces) {
1970 // ######
1971 rejectSurface = Standard_True;
1972 // ######
1973 theapp3d.SetParameters(myTolApprox, tol2d, 4, 8, 0, Standard_False, aParType);
1974 }
1975 }
1976 }
1977 //
1978 theapp3d.Perform(myHS1,myHS2,WL,Standard_True,anApprox1,anApprox2,ifprm,ilprm);
1979 }
1980
1981 if (!theapp3d.IsDone()) {
1982 //
1983 Handle(Geom2d_BSplineCurve) H1;
1984 //
1985 Handle(Geom_Curve) aBSp=MakeBSpline(WL,ifprm, ilprm);
1986 Handle(Geom2d_BSplineCurve) H2;
1987
1988 if(myApprox1) {
1989 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
1990 }
1991
1992 if(myApprox2) {
1993 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
1994 }
1995 //
1996 IntTools_Curve aIC(aBSp, H1, H2);
1997 mySeqOfCurve.Append(aIC);
1998 }
1999
2000 else {
2001 if(myApprox1 || myApprox2 || (typs1==GeomAbs_Plane || typs2==GeomAbs_Plane)) {
2002 if( theapp3d.TolReached2d()>myTolReached2d || myTolReached2d==0.) {
2003 myTolReached2d = theapp3d.TolReached2d();
2004 }
2005 }
2006 if(typs1==GeomAbs_Plane || typs2==GeomAbs_Plane) {
2007 myTolReached3d = myTolReached2d;
2008 //
2009 if (typs1==GeomAbs_Torus || typs2==GeomAbs_Torus) {
2010 if (myTolReached3d<1.e-6) {
2011 myTolReached3d = theapp3d.TolReached3d();
2012 myTolReached3d=1.e-6;
2013 }
2014 }
2015 //
2016 }
2017 else if( theapp3d.TolReached3d()>myTolReached3d || myTolReached3d==0.) {
2018 myTolReached3d = theapp3d.TolReached3d();
2019 }
2020
2021 Standard_Integer aNbMultiCurves, nbpoles;
2022 aNbMultiCurves=theapp3d.NbMultiCurves();
2023 for (j=1; j<=aNbMultiCurves; j++) {
2024 if(typs1 == GeomAbs_Plane) {
2025 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2026 nbpoles = mbspc.NbPoles();
2027
2028 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2029 TColgp_Array1OfPnt tpoles(1,nbpoles);
2030
2031 mbspc.Curve(1,tpoles2d);
2032 const gp_Pln& Pln = myHS1->Surface().Plane();
2033 //
2034 Standard_Integer ik;
2035 for(ik = 1; ik<= nbpoles; ik++) {
2036 tpoles.SetValue(ik,
2037 ElSLib::Value(tpoles2d.Value(ik).X(),
2038 tpoles2d.Value(ik).Y(),
2039 Pln));
2040 }
2041 //
2042 Handle(Geom_BSplineCurve) BS =
2043 new Geom_BSplineCurve(tpoles,
2044 mbspc.Knots(),
2045 mbspc.Multiplicities(),
2046 mbspc.Degree());
2047 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2048 Check.FixTangent(Standard_True, Standard_True);
2049 //
2050 IntTools_Curve aCurve;
2051 aCurve.SetCurve(BS);
2052
2053 if(myApprox1) {
2054 Handle(Geom2d_BSplineCurve) BS1 =
2055 new Geom2d_BSplineCurve(tpoles2d,
2056 mbspc.Knots(),
2057 mbspc.Multiplicities(),
2058 mbspc.Degree());
2059 GeomLib_Check2dBSplineCurve Check1(BS1,TOLCHECK,TOLANGCHECK);
2060 Check1.FixTangent(Standard_True,Standard_True);
2061 //
2062 // ############################################
2063 if(!rejectSurface && !reApprox) {
2064 Standard_Boolean isValid = IsCurveValid(BS1);
2065 if(!isValid) {
2066 reApprox = Standard_True;
2067 goto reapprox;
2068 }
2069 }
2070 // ############################################
2071 aCurve.SetFirstCurve2d(BS1);
2072 }
2073 else {
2074 Handle(Geom2d_BSplineCurve) H1;
2075 aCurve.SetFirstCurve2d(H1);
2076 }
2077
2078 if(myApprox2) {
2079 mbspc.Curve(2, tpoles2d);
2080
2081 Handle(Geom2d_BSplineCurve) BS2 = new Geom2d_BSplineCurve(tpoles2d,
2082 mbspc.Knots(),
2083 mbspc.Multiplicities(),
2084 mbspc.Degree());
2085 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
2086 newCheck.FixTangent(Standard_True,Standard_True);
2087
2088 // ###########################################
2089 if(!rejectSurface && !reApprox) {
2090 Standard_Boolean isValid = IsCurveValid(BS2);
2091 if(!isValid) {
2092 reApprox = Standard_True;
2093 goto reapprox;
2094 }
2095 }
2096 // ###########################################
2097 //
2098 aCurve.SetSecondCurve2d(BS2);
2099 }
2100 else {
2101 Handle(Geom2d_BSplineCurve) H2;
2102 //
2103 aCurve.SetSecondCurve2d(H2);
2104 }
2105 //
2106 mySeqOfCurve.Append(aCurve);
2107 }
2108
2109 else if(typs2 == GeomAbs_Plane) {
2110 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2111 nbpoles = mbspc.NbPoles();
2112
2113 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2114 TColgp_Array1OfPnt tpoles(1,nbpoles);
2115 mbspc.Curve((myApprox1==Standard_True)? 2 : 1,tpoles2d);
2116 const gp_Pln& Pln = myHS2->Surface().Plane();
2117 //
2118 Standard_Integer ik;
2119 for(ik = 1; ik<= nbpoles; ik++) {
2120 tpoles.SetValue(ik,
2121 ElSLib::Value(tpoles2d.Value(ik).X(),
2122 tpoles2d.Value(ik).Y(),
2123 Pln));
2124
2125 }
2126 //
2127 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
2128 mbspc.Knots(),
2129 mbspc.Multiplicities(),
2130 mbspc.Degree());
2131 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2132 Check.FixTangent(Standard_True,Standard_True);
2133 //
2134 IntTools_Curve aCurve;
2135 aCurve.SetCurve(BS);
2136
2137 if(myApprox2) {
2138 Handle(Geom2d_BSplineCurve) BS1=new Geom2d_BSplineCurve(tpoles2d,
2139 mbspc.Knots(),
2140 mbspc.Multiplicities(),
2141 mbspc.Degree());
2142 GeomLib_Check2dBSplineCurve Check1(BS1,TOLCHECK,TOLANGCHECK);
2143 Check1.FixTangent(Standard_True,Standard_True);
2144 //
2145 // ###########################################
2146 if(!rejectSurface && !reApprox) {
2147 Standard_Boolean isValid = IsCurveValid(BS1);
2148 if(!isValid) {
2149 reApprox = Standard_True;
2150 goto reapprox;
2151 }
2152 }
989341c5 2153 // ###########################################
2154 bPCurvesOk = CheckPCurve(BS1, myFace2);
94218044 2155 aCurve.SetSecondCurve2d(BS1);
2156 }
2157 else {
2158 Handle(Geom2d_BSplineCurve) H2;
2159 aCurve.SetSecondCurve2d(H2);
2160 }
2161
2162 if(myApprox1) {
2163 mbspc.Curve(1,tpoles2d);
2164 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
2165 mbspc.Knots(),
2166 mbspc.Multiplicities(),
2167 mbspc.Degree());
2168 GeomLib_Check2dBSplineCurve Check2(BS2,TOLCHECK,TOLANGCHECK);
2169 Check2.FixTangent(Standard_True,Standard_True);
2170 //
2171 // ###########################################
2172 if(!rejectSurface && !reApprox) {
2173 Standard_Boolean isValid = IsCurveValid(BS2);
2174 if(!isValid) {
2175 reApprox = Standard_True;
2176 goto reapprox;
2177 }
2178 }
989341c5 2179 // ###########################################
2180 bPCurvesOk = bPCurvesOk && CheckPCurve(BS2, myFace1);
94218044 2181 aCurve.SetFirstCurve2d(BS2);
2182 }
2183 else {
2184 Handle(Geom2d_BSplineCurve) H1;
2185 //
2186 aCurve.SetFirstCurve2d(H1);
2187 }
2188 //
989341c5 2189 //if points of the pcurves are out of the faces bounds
2190 //create 3d and 2d curves without approximation
2191 if (!bPCurvesOk) {
2192 Handle(Geom2d_BSplineCurve) H1, H2;
94218044 2193 bPCurvesOk = Standard_True;
989341c5 2194 //
2195 Handle(Geom_Curve) aBSp=MakeBSpline(WL,ifprm, ilprm);
94218044 2196
989341c5 2197 if(myApprox1) {
2198 H1 = MakeBSpline2d(WL, ifprm, ilprm, Standard_True);
94218044 2199 bPCurvesOk = CheckPCurve(H1, myFace1);
989341c5 2200 }
94218044 2201
989341c5 2202 if(myApprox2) {
2203 H2 = MakeBSpline2d(WL, ifprm, ilprm, Standard_False);
94218044 2204 bPCurvesOk = bPCurvesOk && CheckPCurve(H2, myFace2);
989341c5 2205 }
2206 //
94218044 2207 //if pcurves created without approximation are out of the
2208 //faces bounds, use approximated 3d and 2d curves
2209 if (bPCurvesOk) {
2210 IntTools_Curve aIC(aBSp, H1, H2);
2211 mySeqOfCurve.Append(aIC);
2212 } else {
2213 mySeqOfCurve.Append(aCurve);
2214 }
989341c5 2215 } else {
2216 mySeqOfCurve.Append(aCurve);
2217 }
94218044 2218 }
2219 else {
2220 const AppParCurves_MultiBSpCurve& mbspc = theapp3d.Value(j);
2221 nbpoles = mbspc.NbPoles();
2222 TColgp_Array1OfPnt tpoles(1,nbpoles);
2223 mbspc.Curve(1,tpoles);
2224 Handle(Geom_BSplineCurve) BS=new Geom_BSplineCurve(tpoles,
2225 mbspc.Knots(),
2226 mbspc.Multiplicities(),
2227 mbspc.Degree());
2228 GeomLib_CheckBSplineCurve Check(BS,TOLCHECK,TOLANGCHECK);
2229 Check.FixTangent(Standard_True,Standard_True);
2230 //
2231 IntTools_Curve aCurve;
2232 aCurve.SetCurve(BS);
2233
2234 if(myApprox1) {
2235 if(anApprox1) {
2236 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2237 mbspc.Curve(2,tpoles2d);
2238 Handle(Geom2d_BSplineCurve) BS1=new Geom2d_BSplineCurve(tpoles2d,
2239 mbspc.Knots(),
2240 mbspc.Multiplicities(),
2241 mbspc.Degree());
2242 GeomLib_Check2dBSplineCurve newCheck(BS1,TOLCHECK,TOLANGCHECK);
2243 newCheck.FixTangent(Standard_True,Standard_True);
2244 //
2245 aCurve.SetFirstCurve2d(BS1);
2246 }
2247 else {
2248 Handle(Geom2d_BSplineCurve) BS1;
2249 fprm = BS->FirstParameter();
2250 lprm = BS->LastParameter();
2251
2252 Handle(Geom2d_Curve) C2d;
2253 Standard_Real aTol = myTolApprox;
2254 BuildPCurves(fprm, lprm, aTol, myHS1->ChangeSurface().Surface(), BS, C2d);
2255 BS1 = Handle(Geom2d_BSplineCurve)::DownCast(C2d);
2256 aCurve.SetFirstCurve2d(BS1);
2257 }
2258
2259 }
2260 else {
2261 Handle(Geom2d_BSplineCurve) H1;
2262 //
2263 aCurve.SetFirstCurve2d(H1);
2264 }
2265 if(myApprox2) {
2266 if(anApprox2) {
2267 TColgp_Array1OfPnt2d tpoles2d(1,nbpoles);
2268 mbspc.Curve((myApprox1==Standard_True)? 3 : 2,tpoles2d);
2269 Handle(Geom2d_BSplineCurve) BS2=new Geom2d_BSplineCurve(tpoles2d,
2270 mbspc.Knots(),
2271 mbspc.Multiplicities(),
2272 mbspc.Degree());
2273 GeomLib_Check2dBSplineCurve newCheck(BS2,TOLCHECK,TOLANGCHECK);
2274 newCheck.FixTangent(Standard_True,Standard_True);
2275 //
2276 aCurve.SetSecondCurve2d(BS2);
2277 }
2278 else {
2279 Handle(Geom2d_BSplineCurve) BS2;
2280 fprm = BS->FirstParameter();
2281 lprm = BS->LastParameter();
2282
2283 Handle(Geom2d_Curve) C2d;
2284 Standard_Real aTol = myTolApprox;
2285 BuildPCurves(fprm, lprm, aTol, myHS2->ChangeSurface().Surface(), BS, C2d);
2286 BS2 = Handle(Geom2d_BSplineCurve)::DownCast(C2d);
2287 aCurve.SetSecondCurve2d(BS2);
2288 }
2289
2290 }
2291 else {
2292 Handle(Geom2d_BSplineCurve) H2;
2293 //
2294 aCurve.SetSecondCurve2d(H2);
2295 }
2296 //
2297 mySeqOfCurve.Append(aCurve);
2298 }
2299 }
2300 }
7fd59977 2301 }
2302 }// else { // X
2303 }// case IntPatch_Walking:{
94218044 2304 break;
2305
7fd59977 2306 case IntPatch_Restriction:
2307 break;
2308
2309 }
2310}
2311
2312//=======================================================================
2313//function : BuildPCurves
2314//purpose :
2315//=======================================================================
2316 void BuildPCurves (Standard_Real f,
2317 Standard_Real l,
2318 Standard_Real& Tol,
2319 const Handle (Geom_Surface)& S,
2320 const Handle (Geom_Curve)& C,
2321 Handle (Geom2d_Curve)& C2d)
2322{
2323
2324 Standard_Real umin,umax,vmin,vmax;
2325 //
2326
2327 if (C2d.IsNull()) {
2328
2329 // in class ProjLib_Function the range of parameters is shrank by 1.e-09
2330 if((l - f) > 2.e-09) {
2331 C2d = GeomProjLib::Curve2d(C,f,l,S,Tol);
2332 //
2333 if (C2d.IsNull()) {
2334 // proj. a circle that goes through the pole on a sphere to the sphere
2335 Tol=Tol+1.e-7;
2336 C2d = GeomProjLib::Curve2d(C,f,l,S,Tol);
2337 }
2338 }
2339 else {
2340 if((l - f) > Epsilon(Abs(f))) {
2341 GeomAPI_ProjectPointOnSurf aProjector1, aProjector2;
2342 gp_Pnt P1 = C->Value(f);
2343 gp_Pnt P2 = C->Value(l);
2344 aProjector1.Init(P1, S);
2345 aProjector2.Init(P2, S);
2346
2347 if(aProjector1.IsDone() && aProjector2.IsDone()) {
2348 Standard_Real U=0., V=0.;
2349 aProjector1.LowerDistanceParameters(U, V);
2350 gp_Pnt2d p1(U, V);
2351
2352 aProjector2.LowerDistanceParameters(U, V);
2353 gp_Pnt2d p2(U, V);
2354
2355 if(p1.Distance(p2) > gp::Resolution()) {
2356 TColgp_Array1OfPnt2d poles(1,2);
2357 TColStd_Array1OfReal knots(1,2);
2358 TColStd_Array1OfInteger mults(1,2);
2359 poles(1) = p1;
2360 poles(2) = p2;
2361 knots(1) = f;
2362 knots(2) = l;
2363 mults(1) = mults(2) = 2;
2364
2365 C2d = new Geom2d_BSplineCurve(poles,knots,mults,1);
2366
2367 // compute reached tolerance.begin
2368 gp_Pnt PMid = C->Value((f + l) * 0.5);
2369 aProjector1.Perform(PMid);
2370
2371 if(aProjector1.IsDone()) {
2372 aProjector1.LowerDistanceParameters(U, V);
2373 gp_Pnt2d pmidproj(U, V);
2374 gp_Pnt2d pmidcurve2d = C2d->Value((f + l) * 0.5);
2375 Standard_Real adist = pmidcurve2d.Distance(pmidproj);
2376 Tol = (adist > Tol) ? adist : Tol;
2377 }
2378 // compute reached tolerance.end
2379 }
2380 }
2381 }
2382 }
2383 //
2384 S->Bounds(umin, umax, vmin, vmax);
2385
2386 if (S->IsUPeriodic() && !C2d.IsNull()) {
0fc4f2e2 2387 // Recadre dans le domaine UV de la face
7fd59977 2388 Standard_Real period, U0, du, aEps;
2389
2390 du =0.0;
2391 aEps=Precision::PConfusion();
2392 period = S->UPeriod();
2393 gp_Pnt2d Pf = C2d->Value(f);
2394 U0=Pf.X();
2395 //
2396 gp_Pnt2d Pl = C2d->Value(l);
2397
2398 U0 = Min(Pl.X(), U0);
2399// while(U0-umin<aEps) {
2400 while(U0-umin<-aEps) {
2401 U0+=period;
2402 du+=period;
2403 }
2404 //
2405 while(U0-umax>aEps) {
2406 U0-=period;
2407 du-=period;
2408 }
2409 if (du != 0) {
2410 gp_Vec2d T1(du,0.);
2411 C2d->Translate(T1);
2412 }
2413 }
2414 }
7fd59977 2415}
2416
2417//=======================================================================
2418//function : Parameters
2419//purpose :
2420//=======================================================================
2421 void Parameters(const Handle(GeomAdaptor_HSurface)& HS1,
2422 const Handle(GeomAdaptor_HSurface)& HS2,
2423 const gp_Pnt& Ptref,
2424 Standard_Real& U1,
2425 Standard_Real& V1,
2426 Standard_Real& U2,
2427 Standard_Real& V2)
2428{
2429
2430 IntSurf_Quadric quad1,quad2;
2431 GeomAbs_SurfaceType typs = HS1->Surface().GetType();
2432
2433 switch (typs) {
2434 case GeomAbs_Plane:
2435 quad1.SetValue(HS1->Surface().Plane());
2436 break;
2437 case GeomAbs_Cylinder:
2438 quad1.SetValue(HS1->Surface().Cylinder());
2439 break;
2440 case GeomAbs_Cone:
2441 quad1.SetValue(HS1->Surface().Cone());
2442 break;
2443 case GeomAbs_Sphere:
2444 quad1.SetValue(HS1->Surface().Sphere());
2445 break;
2446 default:
2447 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve");
2448 }
2449
2450 typs = HS2->Surface().GetType();
2451 switch (typs) {
2452 case GeomAbs_Plane:
2453 quad2.SetValue(HS2->Surface().Plane());
2454 break;
2455 case GeomAbs_Cylinder:
2456 quad2.SetValue(HS2->Surface().Cylinder());
2457 break;
2458 case GeomAbs_Cone:
2459 quad2.SetValue(HS2->Surface().Cone());
2460 break;
2461 case GeomAbs_Sphere:
2462 quad2.SetValue(HS2->Surface().Sphere());
2463 break;
2464 default:
2465 Standard_ConstructionError::Raise("GeomInt_IntSS::MakeCurve");
2466 }
2467
2468 quad1.Parameters(Ptref,U1,V1);
2469 quad2.Parameters(Ptref,U2,V2);
2470}
2471
2472//=======================================================================
2473//function : MakeBSpline
2474//purpose :
2475//=======================================================================
2476Handle(Geom_Curve) MakeBSpline (const Handle(IntPatch_WLine)& WL,
2477 const Standard_Integer ideb,
2478 const Standard_Integer ifin)
2479{
2480 Standard_Integer i,nbpnt = ifin-ideb+1;
2481 TColgp_Array1OfPnt poles(1,nbpnt);
2482 TColStd_Array1OfReal knots(1,nbpnt);
2483 TColStd_Array1OfInteger mults(1,nbpnt);
2484 Standard_Integer ipidebm1;
2485 for(i=1,ipidebm1=i+ideb-1; i<=nbpnt;ipidebm1++, i++) {
2486 poles(i) = WL->Point(ipidebm1).Value();
2487 mults(i) = 1;
2488 knots(i) = i-1;
2489 }
2490 mults(1) = mults(nbpnt) = 2;
2491 return
2492 new Geom_BSplineCurve(poles,knots,mults,1);
2493}
2494//
2495
2496//=======================================================================
2497//function : MakeBSpline2d
2498//purpose :
2499//=======================================================================
2500Handle(Geom2d_BSplineCurve) MakeBSpline2d(const Handle(IntPatch_WLine)& theWLine,
2501 const Standard_Integer ideb,
2502 const Standard_Integer ifin,
2503 const Standard_Boolean onFirst)
2504{
2505 Standard_Integer i, nbpnt = ifin-ideb+1;
2506 TColgp_Array1OfPnt2d poles(1,nbpnt);
2507 TColStd_Array1OfReal knots(1,nbpnt);
2508 TColStd_Array1OfInteger mults(1,nbpnt);
2509 Standard_Integer ipidebm1;
2510
2511 for(i = 1, ipidebm1 = i+ideb-1; i <= nbpnt; ipidebm1++, i++) {
2512 Standard_Real U, V;
2513 if(onFirst)
2514 theWLine->Point(ipidebm1).ParametersOnS1(U, V);
2515 else
2516 theWLine->Point(ipidebm1).ParametersOnS2(U, V);
2517 poles(i).SetCoord(U, V);
2518 mults(i) = 1;
2519 knots(i) = i-1;
2520 }
2521 mults(1) = mults(nbpnt) = 2;
2522
2523 return new Geom2d_BSplineCurve(poles,knots,mults,1);
2524}
2525//=======================================================================
2526//function : PrepareLines3D
2527//purpose :
2528//=======================================================================
a9f7b6b5 2529 void IntTools_FaceFace::PrepareLines3D(const Standard_Boolean bToSplit)
7fd59977 2530{
a9f7b6b5
P
2531 Standard_Integer i, aNbCurves;
2532 GeomAbs_SurfaceType aType1, aType2;
7fd59977 2533 IntTools_SequenceOfCurves aNewCvs;
7fd59977 2534 //
a9f7b6b5 2535 // 1. Treatment closed curves
7fd59977 2536 aNbCurves=mySeqOfCurve.Length();
a9f7b6b5 2537 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2538 const IntTools_Curve& aIC=mySeqOfCurve(i);
7fd59977 2539 //
a9f7b6b5
P
2540 if (bToSplit) {
2541 Standard_Integer j, aNbC;
2542 IntTools_SequenceOfCurves aSeqCvs;
2543 //
2544 aNbC=IntTools_Tools::SplitCurve(aIC, aSeqCvs);
2545 if (aNbC) {
2546 for (j=1; j<=aNbC; ++j) {
2547 const IntTools_Curve& aICNew=aSeqCvs(j);
2548 aNewCvs.Append(aICNew);
2549 }
2550 }
2551 else {
2552 aNewCvs.Append(aIC);
7fd59977 2553 }
2554 }
7fd59977 2555 else {
2556 aNewCvs.Append(aIC);
2557 }
2558 }
2559 //
2560 // 2. Plane\Cone intersection when we had 4 curves
a9f7b6b5
P
2561 aType1=myHS1->GetType();
2562 aType2=myHS2->GetType();
2563 aNbCurves=aNewCvs.Length();
2564 //
7fd59977 2565 if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Cone) ||
2566 (aType2==GeomAbs_Plane && aType1==GeomAbs_Cone)) {
7fd59977 2567 if (aNbCurves==4) {
a9f7b6b5
P
2568 GeomAbs_CurveType aCType1;
2569 //
2570 aCType1=aNewCvs(1).Type();
7fd59977 2571 if (aCType1==GeomAbs_Line) {
2572 IntTools_SequenceOfCurves aSeqIn, aSeqOut;
2573 //
a9f7b6b5 2574 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2575 const IntTools_Curve& aIC=aNewCvs(i);
2576 aSeqIn.Append(aIC);
2577 }
2578 //
2579 IntTools_Tools::RejectLines(aSeqIn, aSeqOut);
2580 //
2581 aNewCvs.Clear();
2582 aNbCurves=aSeqOut.Length();
a9f7b6b5 2583 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2584 const IntTools_Curve& aIC=aSeqOut(i);
2585 aNewCvs.Append(aIC);
2586 }
7fd59977 2587 }
2588 }
a9f7b6b5 2589 }// if ((aType1==GeomAbs_Plane && aType2==GeomAbs_Cone)...
7fd59977 2590 //
2591 // 3. Fill mySeqOfCurve
2592 mySeqOfCurve.Clear();
2593 aNbCurves=aNewCvs.Length();
a9f7b6b5 2594 for (i=1; i<=aNbCurves; ++i) {
7fd59977 2595 const IntTools_Curve& aIC=aNewCvs(i);
2596 mySeqOfCurve.Append(aIC);
2597 }
7fd59977 2598}
7fd59977 2599//=======================================================================
2600//function : CorrectSurfaceBoundaries
2601//purpose :
2602//=======================================================================
2603 void CorrectSurfaceBoundaries(const TopoDS_Face& theFace,
2604 const Standard_Real theTolerance,
2605 Standard_Real& theumin,
2606 Standard_Real& theumax,
2607 Standard_Real& thevmin,
2608 Standard_Real& thevmax)
2609{
2610 Standard_Boolean enlarge, isuperiodic, isvperiodic;
2611 Standard_Real uinf, usup, vinf, vsup, delta;
2612 GeomAbs_SurfaceType aType;
2613 Handle(Geom_Surface) aSurface;
2614 //
2615 aSurface = BRep_Tool::Surface(theFace);
2616 aSurface->Bounds(uinf, usup, vinf, vsup);
2617 delta = theTolerance;
2618 enlarge = Standard_False;
2619 //
2620 GeomAdaptor_Surface anAdaptorSurface(aSurface);
2621 //
2622 if(aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
2623 Handle(Geom_Surface) aBasisSurface =
2624 (Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface))->BasisSurface();
2625
2626 if(aBasisSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ||
2627 aBasisSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2628 return;
2629 }
2630 }
2631 //
2632 if(aSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2633 Handle(Geom_Surface) aBasisSurface =
2634 (Handle(Geom_OffsetSurface)::DownCast(aSurface))->BasisSurface();
2635
2636 if(aBasisSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface)) ||
2637 aBasisSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
2638 return;
2639 }
2640 }
2641 //
2642 isuperiodic = anAdaptorSurface.IsUPeriodic();
2643 isvperiodic = anAdaptorSurface.IsVPeriodic();
2644 //
2645 aType=anAdaptorSurface.GetType();
2646 if((aType==GeomAbs_BezierSurface) ||
2647 (aType==GeomAbs_BSplineSurface) ||
2648 (aType==GeomAbs_SurfaceOfExtrusion) ||
2649 (aType==GeomAbs_SurfaceOfRevolution)) {
2650 enlarge=Standard_True;
2651 }
2652 //
2653 if(!isuperiodic && enlarge) {
2654
2655 if((theumin - uinf) > delta )
2656 theumin -= delta;
2657 else {
2658 theumin = uinf;
2659 }
2660
2661 if((usup - theumax) > delta )
2662 theumax += delta;
2663 else
2664 theumax = usup;
2665 }
2666 //
2667 if(!isvperiodic && enlarge) {
2668 if((thevmin - vinf) > delta ) {
2669 thevmin -= delta;
2670 }
2671 else {
2672 thevmin = vinf;
2673 }
2674 if((vsup - thevmax) > delta ) {
2675 thevmax += delta;
2676 }
2677 else {
2678 thevmax = vsup;
2679 }
2680 }
2681 //
2682 {
2683 Standard_Integer aNbP;
2684 Standard_Real aXP, dXfact, aXmid, aX1, aX2, aTolPA;
2685 //
2686 aTolPA=Precision::Angular();
2687 // U
2688 if (isuperiodic) {
2689 aXP=anAdaptorSurface.UPeriod();
2690 dXfact=theumax-theumin;
2691 if (dXfact-aTolPA>aXP) {
2692 aXmid=0.5*(theumax+theumin);
2693 aNbP=RealToInt(aXmid/aXP);
2694 if (aXmid<0.) {
2695 aNbP=aNbP-1;
2696 }
2697 aX1=aNbP*aXP;
0fc4f2e2
P
2698 if (theumin>aTolPA) {
2699 aX1=theumin+aNbP*aXP;
2700 }
7fd59977 2701 aX2=aX1+aXP;
2702 if (theumin<aX1) {
2703 theumin=aX1;
2704 }
2705 if (theumax>aX2) {
2706 theumax=aX2;
2707 }
2708 }
2709 }
2710 // V
2711 if (isvperiodic) {
2712 aXP=anAdaptorSurface.VPeriod();
2713 dXfact=thevmax-thevmin;
2714 if (dXfact-aTolPA>aXP) {
2715 aXmid=0.5*(thevmax+thevmin);
2716 aNbP=RealToInt(aXmid/aXP);
2717 if (aXmid<0.) {
2718 aNbP=aNbP-1;
2719 }
2720 aX1=aNbP*aXP;
0fc4f2e2
P
2721 if (thevmin>aTolPA) {
2722 aX1=thevmin+aNbP*aXP;
2723 }
7fd59977 2724 aX2=aX1+aXP;
2725 if (thevmin<aX1) {
2726 thevmin=aX1;
2727 }
2728 if (thevmax>aX2) {
2729 thevmax=aX2;
2730 }
2731 }
2732 }
2733 }
2734 //
2735 if(isuperiodic || isvperiodic) {
2736 Standard_Boolean correct = Standard_False;
2737 Standard_Boolean correctU = Standard_False;
2738 Standard_Boolean correctV = Standard_False;
2739 Bnd_Box2d aBox;
2740 TopExp_Explorer anExp;
2741
2742 for(anExp.Init(theFace, TopAbs_EDGE); anExp.More(); anExp.Next()) {
2743 if(BRep_Tool::IsClosed(TopoDS::Edge(anExp.Current()), theFace)) {
2744 correct = Standard_True;
2745 Standard_Real f, l;
2746 TopoDS_Edge anEdge = TopoDS::Edge(anExp.Current());
2747
2748 for(Standard_Integer i = 0; i < 2; i++) {
2749 if(i==0) {
2750 anEdge.Orientation(TopAbs_FORWARD);
2751 }
2752 else {
2753 anEdge.Orientation(TopAbs_REVERSED);
2754 }
2755 Handle(Geom2d_Curve) aCurve = BRep_Tool::CurveOnSurface(anEdge, theFace, f, l);
2756
2757 if(aCurve.IsNull()) {
2758 correct = Standard_False;
2759 break;
2760 }
2761 Handle(Geom2d_Line) aLine = Handle(Geom2d_Line)::DownCast(aCurve);
2762
2763 if(aLine.IsNull()) {
2764 correct = Standard_False;
2765 break;
2766 }
2767 gp_Dir2d anUDir(1., 0.);
2768 gp_Dir2d aVDir(0., 1.);
2769 Standard_Real anAngularTolerance = Precision::Angular();
2770
2771 correctU = correctU || aLine->Position().Direction().IsParallel(aVDir, anAngularTolerance);
2772 correctV = correctV || aLine->Position().Direction().IsParallel(anUDir, anAngularTolerance);
2773
2774 gp_Pnt2d pp1 = aCurve->Value(f);
2775 aBox.Add(pp1);
2776 gp_Pnt2d pp2 = aCurve->Value(l);
2777 aBox.Add(pp2);
2778 }
2779 if(!correct)
2780 break;
2781 }
2782 }
2783
2784 if(correct) {
2785 Standard_Real umin, vmin, umax, vmax;
2786 aBox.Get(umin, vmin, umax, vmax);
2787
2788 if(isuperiodic && correctU) {
2789
2790 if(theumin < umin)
2791 theumin = umin;
2792
2793 if(theumax > umax) {
2794 theumax = umax;
2795 }
2796 }
2797 if(isvperiodic && correctV) {
2798
2799 if(thevmin < vmin)
2800 thevmin = vmin;
2801 if(thevmax > vmax)
2802 thevmax = vmax;
2803 }
2804 }
2805 }
2806}
2807//
2808//
2809// The block is dedicated to determine whether WLine [ifprm, ilprm]
2810// crosses the degenerated zone on each given surface or not.
2811// If Yes -> We will not use info about surfaces during approximation
8e0115e4 2812// because inside degenerated zone of the surface the approx. algo.
7fd59977 2813// uses wrong values of normal, etc., and resulting curve will have
2814// oscillations that we would not like to have.
7fd59977 2815
2816
4e57c75e 2817
7fd59977 2818static
2819 Standard_Boolean IsDegeneratedZone(const gp_Pnt2d& aP2d,
2820 const Handle(Geom_Surface)& aS,
2821 const Standard_Integer iDir);
2822static
2823 Standard_Boolean IsPointInDegeneratedZone(const IntSurf_PntOn2S& aP2S,
2824 const TopoDS_Face& aF1,
2825 const TopoDS_Face& aF2);
2826//=======================================================================
2827//function : NotUseSurfacesForApprox
2828//purpose :
2829//=======================================================================
2830Standard_Boolean NotUseSurfacesForApprox(const TopoDS_Face& aF1,
2831 const TopoDS_Face& aF2,
2832 const Handle(IntPatch_WLine)& WL,
2833 const Standard_Integer ifprm,
2834 const Standard_Integer ilprm)
2835{
2836 Standard_Boolean bPInDZ;
2837
2838 Handle(IntSurf_LineOn2S) aLineOn2S=WL->Curve();
2839
2840 const IntSurf_PntOn2S& aP2Sfprm=aLineOn2S->Value(ifprm);
2841 bPInDZ=IsPointInDegeneratedZone(aP2Sfprm, aF1, aF2);
2842 if (bPInDZ) {
2843 return bPInDZ;
2844 }
2845
2846 const IntSurf_PntOn2S& aP2Slprm=aLineOn2S->Value(ilprm);
2847 bPInDZ=IsPointInDegeneratedZone(aP2Slprm, aF1, aF2);
2848
2849 return bPInDZ;
2850}
2851//=======================================================================
2852//function : IsPointInDegeneratedZone
2853//purpose :
2854//=======================================================================
2855Standard_Boolean IsPointInDegeneratedZone(const IntSurf_PntOn2S& aP2S,
2856 const TopoDS_Face& aF1,
2857 const TopoDS_Face& aF2)
2858
2859{
2860 Standard_Boolean bFlag=Standard_True;
2861 Standard_Real US11, US12, VS11, VS12, US21, US22, VS21, VS22;
2862 Standard_Real U1, V1, U2, V2, aDelta, aD;
2863 gp_Pnt2d aP2d;
2864
2865 Handle(Geom_Surface)aS1 = BRep_Tool::Surface(aF1);
2866 aS1->Bounds(US11, US12, VS11, VS12);
2867 GeomAdaptor_Surface aGAS1(aS1);
2868
2869 Handle(Geom_Surface)aS2 = BRep_Tool::Surface(aF2);
2870 aS1->Bounds(US21, US22, VS21, VS22);
2871 GeomAdaptor_Surface aGAS2(aS2);
2872 //
2873 //const gp_Pnt& aP=aP2S.Value();
2874 aP2S.Parameters(U1, V1, U2, V2);
2875 //
2876 aDelta=1.e-7;
2877 // Check on Surf 1
2878 aD=aGAS1.UResolution(aDelta);
2879 aP2d.SetCoord(U1, V1);
2880 if (fabs(U1-US11) < aD) {
2881 bFlag=IsDegeneratedZone(aP2d, aS1, 1);
2882 if (bFlag) {
2883 return bFlag;
2884 }
2885 }
2886 if (fabs(U1-US12) < aD) {
2887 bFlag=IsDegeneratedZone(aP2d, aS1, 1);
2888 if (bFlag) {
2889 return bFlag;
2890 }
2891 }
2892 aD=aGAS1.VResolution(aDelta);
2893 if (fabs(V1-VS11) < aDelta) {
2894 bFlag=IsDegeneratedZone(aP2d, aS1, 2);
2895 if (bFlag) {
2896 return bFlag;
2897 }
2898 }
2899 if (fabs(V1-VS12) < aDelta) {
2900 bFlag=IsDegeneratedZone(aP2d, aS1, 2);
2901 if (bFlag) {
2902 return bFlag;
2903 }
2904 }
2905 // Check on Surf 2
2906 aD=aGAS2.UResolution(aDelta);
2907 aP2d.SetCoord(U2, V2);
2908 if (fabs(U2-US21) < aDelta) {
2909 bFlag=IsDegeneratedZone(aP2d, aS2, 1);
2910 if (bFlag) {
2911 return bFlag;
2912 }
2913 }
2914 if (fabs(U2-US22) < aDelta) {
2915 bFlag=IsDegeneratedZone(aP2d, aS2, 1);
2916 if (bFlag) {
2917 return bFlag;
2918 }
2919 }
2920 aD=aGAS2.VResolution(aDelta);
2921 if (fabs(V2-VS21) < aDelta) {
2922 bFlag=IsDegeneratedZone(aP2d, aS2, 2);
2923 if (bFlag) {
2924 return bFlag;
2925 }
2926 }
2927 if (fabs(V2-VS22) < aDelta) {
2928 bFlag=IsDegeneratedZone(aP2d, aS2, 2);
2929 if (bFlag) {
2930 return bFlag;
2931 }
2932 }
2933 return !bFlag;
2934}
2935
2936//=======================================================================
2937//function : IsDegeneratedZone
2938//purpose :
2939//=======================================================================
2940Standard_Boolean IsDegeneratedZone(const gp_Pnt2d& aP2d,
2941 const Handle(Geom_Surface)& aS,
2942 const Standard_Integer iDir)
2943{
2944 Standard_Boolean bFlag=Standard_True;
2945 Standard_Real US1, US2, VS1, VS2, dY, dX, d1, d2, dD;
2946 Standard_Real aXm, aYm, aXb, aYb, aXe, aYe;
2947 aS->Bounds(US1, US2, VS1, VS2);
2948
2949 gp_Pnt aPm, aPb, aPe;
2950
2951 aXm=aP2d.X();
2952 aYm=aP2d.Y();
2953
2954 aS->D0(aXm, aYm, aPm);
2955
2956 dX=1.e-5;
2957 dY=1.e-5;
2958 dD=1.e-12;
2959
2960 if (iDir==1) {
2961 aXb=aXm;
2962 aXe=aXm;
2963 aYb=aYm-dY;
2964 if (aYb < VS1) {
2965 aYb=VS1;
2966 }
2967 aYe=aYm+dY;
2968 if (aYe > VS2) {
2969 aYe=VS2;
2970 }
2971 aS->D0(aXb, aYb, aPb);
2972 aS->D0(aXe, aYe, aPe);
2973
2974 d1=aPm.Distance(aPb);
2975 d2=aPm.Distance(aPe);
2976 if (d1 < dD && d2 < dD) {
2977 return bFlag;
2978 }
2979 return !bFlag;
2980 }
2981 //
2982 else if (iDir==2) {
2983 aYb=aYm;
2984 aYe=aYm;
2985 aXb=aXm-dX;
2986 if (aXb < US1) {
2987 aXb=US1;
2988 }
2989 aXe=aXm+dX;
2990 if (aXe > US2) {
2991 aXe=US2;
2992 }
2993 aS->D0(aXb, aYb, aPb);
2994 aS->D0(aXe, aYe, aPe);
2995
2996 d1=aPm.Distance(aPb);
2997 d2=aPm.Distance(aPe);
2998 if (d1 < dD && d2 < dD) {
2999 return bFlag;
3000 }
3001 return !bFlag;
3002 }
3003 return !bFlag;
3004}
3005
3006//=========================================================================
3007// static function : ComputePurgedWLine
3008// purpose : Removes equal points (leave one of equal points) from theWLine
3009// and recompute vertex parameters.
3010// Returns new WLine or null WLine if the number
3011// of the points is less than 2.
3012//=========================================================================
3013Handle(IntPatch_WLine) ComputePurgedWLine(const Handle(IntPatch_WLine)& theWLine) {
3928aec6 3014
3928aec6 3015 Standard_Integer i, k, v, nb, nbvtx;
7fd59977 3016 Handle(IntPatch_WLine) aResult;
3928aec6
P
3017 nbvtx = theWLine->NbVertex();
3018 nb = theWLine->NbPnts();
3019 if (nb==2) {
3020 const IntSurf_PntOn2S& p1 = theWLine->Point(1);
3021 const IntSurf_PntOn2S& p2 = theWLine->Point(2);
3022 if(p1.Value().IsEqual(p2.Value(), gp::Resolution())) {
3023 return aResult;
3024 }
3025 }
3026 //
7fd59977 3027 Handle(IntPatch_WLine) aLocalWLine;
3028 Handle(IntPatch_WLine) aTmpWLine = theWLine;
7fd59977 3029 Handle(IntSurf_LineOn2S) aLineOn2S = new IntSurf_LineOn2S();
3030 aLocalWLine = new IntPatch_WLine(aLineOn2S, Standard_False);
7fd59977 3031 for(i = 1; i <= nb; i++) {
3032 aLineOn2S->Add(theWLine->Point(i));
3033 }
3034
3035 for(v = 1; v <= nbvtx; v++) {
3036 aLocalWLine->AddVertex(theWLine->Vertex(v));
3037 }
3038
3039 for(i = 1; i <= aLineOn2S->NbPoints(); i++) {
3040 Standard_Integer aStartIndex = i + 1;
3041 Standard_Integer anEndIndex = i + 5;
3042 nb = aLineOn2S->NbPoints();
3043 anEndIndex = (anEndIndex > nb) ? nb : anEndIndex;
3044
a2eede02 3045 if((aStartIndex > nb) || (anEndIndex <= 1)) {
7fd59977 3046 continue;
3047 }
3048 k = aStartIndex;
3049
3050 while(k <= anEndIndex) {
3051
3052 if(i != k) {
3053 IntSurf_PntOn2S p1 = aLineOn2S->Value(i);
3054 IntSurf_PntOn2S p2 = aLineOn2S->Value(k);
3055
3056 if(p1.Value().IsEqual(p2.Value(), gp::Resolution())) {
3057 aTmpWLine = aLocalWLine;
3058 aLocalWLine = new IntPatch_WLine(aLineOn2S, Standard_False);
3059
3060 for(v = 1; v <= aTmpWLine->NbVertex(); v++) {
3061 IntPatch_Point aVertex = aTmpWLine->Vertex(v);
3062 Standard_Integer avertexindex = (Standard_Integer)aVertex.ParameterOnLine();
3063
3064 if(avertexindex >= k) {
3065 aVertex.SetParameter(aVertex.ParameterOnLine() - 1.);
3066 }
3067 aLocalWLine->AddVertex(aVertex);
3068 }
3069 aLineOn2S->RemovePoint(k);
3070 anEndIndex--;
3071 continue;
3072 }
3073 }
3074 k++;
3075 }
3076 }
3077
3078 if(aLineOn2S->NbPoints() > 1) {
3079 aResult = aLocalWLine;
3080 }
3081 return aResult;
3082}
3083
3084//=======================================================================
3085//function : TolR3d
3086//purpose :
3087//=======================================================================
3088void TolR3d(const TopoDS_Face& aF1,
3089 const TopoDS_Face& aF2,
3090 Standard_Real& myTolReached3d)
3091{
3092 Standard_Real aTolF1, aTolF2, aTolFMax, aTolTresh;
3093
3094 aTolTresh=2.999999e-3;
3095 aTolF1 = BRep_Tool::Tolerance(aF1);
3096 aTolF2 = BRep_Tool::Tolerance(aF2);
3097 aTolFMax=Max(aTolF1, aTolF2);
3098
3099 if (aTolFMax>aTolTresh) {
3100 myTolReached3d=aTolFMax;
3101 }
3102}
3103//=======================================================================
3104//function : AdjustPeriodic
3105//purpose :
3106//=======================================================================
3107Standard_Real AdjustPeriodic(const Standard_Real theParameter,
3108 const Standard_Real parmin,
3109 const Standard_Real parmax,
3110 const Standard_Real thePeriod,
3111 Standard_Real& theOffset)
3112{
3113 Standard_Real aresult;
3114 //
3115 theOffset = 0.;
3116 aresult = theParameter;
3117 while(aresult < parmin) {
3118 aresult += thePeriod;
3119 theOffset += thePeriod;
3120 }
3121
3122 while(aresult > parmax) {
3123 aresult -= thePeriod;
3124 theOffset -= thePeriod;
3125 }
3126 return aresult;
3127}
3128//=======================================================================
3129//function : IsPointOnBoundary
3130//purpose :
3131//=======================================================================
3132Standard_Boolean IsPointOnBoundary(const Standard_Real theParameter,
3133 const Standard_Real theFirstBoundary,
3134 const Standard_Real theSecondBoundary,
3135 const Standard_Real theResolution,
3136 Standard_Boolean& IsOnFirstBoundary)
3137{
3138 Standard_Boolean bRet;
3139 Standard_Integer i;
3140 Standard_Real adist;
3141 //
3142 bRet=Standard_False;
3143 for(i = 0; i < 2; ++i) {
3144 IsOnFirstBoundary = (i == 0);
3145 if (IsOnFirstBoundary) {
3146 adist = fabs(theParameter - theFirstBoundary);
3147 }
3148 else {
3149 adist = fabs(theParameter - theSecondBoundary);
3150 }
3151 if(adist < theResolution) {
3152 return !bRet;
3153 }
3154 }
3155 return bRet;
3156}
3157// ------------------------------------------------------------------------------------------------
3158// static function: FindPoint
3159// purpose:
3160// ------------------------------------------------------------------------------------------------
3161Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
3162 const gp_Pnt2d& theLastPoint,
3163 const Standard_Real theUmin,
3164 const Standard_Real theUmax,
3165 const Standard_Real theVmin,
3166 const Standard_Real theVmax,
3167 gp_Pnt2d& theNewPoint) {
3168
3169 gp_Vec2d aVec(theFirstPoint, theLastPoint);
3170 Standard_Integer i = 0, j = 0;
3171
3172 for(i = 0; i < 4; i++) {
3173 gp_Vec2d anOtherVec;
3174 gp_Vec2d anOtherVecNormal;
3175 gp_Pnt2d aprojpoint = theLastPoint;
3176
3177 if((i % 2) == 0) {
3178 anOtherVec.SetX(0.);
3179 anOtherVec.SetY(1.);
3180 anOtherVecNormal.SetX(1.);
3181 anOtherVecNormal.SetY(0.);
3182
3183 if(i < 2)
3184 aprojpoint.SetX(theUmin);
3185 else
3186 aprojpoint.SetX(theUmax);
3187 }
3188 else {
3189 anOtherVec.SetX(1.);
3190 anOtherVec.SetY(0.);
3191 anOtherVecNormal.SetX(0.);
3192 anOtherVecNormal.SetY(1.);
3193
3194 if(i < 2)
3195 aprojpoint.SetY(theVmin);
3196 else
3197 aprojpoint.SetY(theVmax);
3198 }
3199 gp_Vec2d anormvec = aVec;
3200 anormvec.Normalize();
fa9681ca 3201 RefineVector(anormvec);
7fd59977 3202 Standard_Real adot1 = anormvec.Dot(anOtherVecNormal);
3203
3204 if(fabs(adot1) < Precision::Angular())
3205 continue;
3206 Standard_Real adist = 0.;
3207 Standard_Boolean bIsOut = Standard_False;
3208
3209 if((i % 2) == 0) {
3210 adist = (i < 2) ? fabs(theLastPoint.X() - theUmin) : fabs(theLastPoint.X() - theUmax);
3211 bIsOut = (i < 2) ? (theLastPoint.X() < theUmin) : (theLastPoint.X() > theUmax);
3212 }
3213 else {
3214 adist = (i < 2) ? fabs(theLastPoint.Y() - theVmin) : fabs(theLastPoint.Y() - theVmax);
3215 bIsOut = (i < 2) ? (theLastPoint.Y() < theVmin) : (theLastPoint.Y() > theVmax);
3216 }
3217 Standard_Real anoffset = adist * anOtherVec.Dot(anormvec) / adot1;
3218
3219 for(j = 0; j < 2; j++) {
3220 anoffset = (j == 0) ? anoffset : -anoffset;
3221 gp_Pnt2d acurpoint(aprojpoint.XY() + (anOtherVec.XY()*anoffset));
3222 gp_Vec2d acurvec(theLastPoint, acurpoint);
3223 if ( bIsOut )
3224 acurvec.Reverse();
3225
9e9df9d9
P
3226 Standard_Real aDotX, anAngleX;
3227 //
3228 aDotX = aVec.Dot(acurvec);
3229 anAngleX = aVec.Angle(acurvec);
3230 //
3231 if(aDotX > 0. && fabs(anAngleX) < Precision::PConfusion()) {
7fd59977 3232 if((i % 2) == 0) {
3233 if((acurpoint.Y() >= theVmin) &&
3234 (acurpoint.Y() <= theVmax)) {
3235 theNewPoint = acurpoint;
3236 return Standard_True;
3237 }
3238 }
3239 else {
3240 if((acurpoint.X() >= theUmin) &&
3241 (acurpoint.X() <= theUmax)) {
3242 theNewPoint = acurpoint;
3243 return Standard_True;
3244 }
3245 }
3246 }
3247 }
3248 }
3249 return Standard_False;
3250}
3251
3252
3253// ------------------------------------------------------------------------------------------------
3254// static function: FindPoint
3255// purpose: Find point on the boundary of radial tangent zone
3256// ------------------------------------------------------------------------------------------------
3257Standard_Boolean FindPoint(const gp_Pnt2d& theFirstPoint,
3258 const gp_Pnt2d& theLastPoint,
3259 const Standard_Real theUmin,
3260 const Standard_Real theUmax,
3261 const Standard_Real theVmin,
3262 const Standard_Real theVmax,
3263 const gp_Pnt2d& theTanZoneCenter,
3264 const Standard_Real theZoneRadius,
3265 Handle(GeomAdaptor_HSurface) theGASurface,
3266 gp_Pnt2d& theNewPoint) {
3267 theNewPoint = theLastPoint;
3268
3269 if ( !IsInsideTanZone( theLastPoint, theTanZoneCenter, theZoneRadius, theGASurface) )
3270 return Standard_False;
3271
3272 Standard_Real aUResolution = theGASurface->UResolution( theZoneRadius );
3273 Standard_Real aVResolution = theGASurface->VResolution( theZoneRadius );
3274
3275 Standard_Real aRadius = ( aUResolution < aVResolution ) ? aUResolution : aVResolution;
3276 gp_Ax22d anAxis( theTanZoneCenter, gp_Dir2d(1, 0), gp_Dir2d(0, 1) );
3277 gp_Circ2d aCircle( anAxis, aRadius );
3278
3279 //
3280 gp_Vec2d aDir( theLastPoint.XY() - theFirstPoint.XY() );
3281 Standard_Real aLength = aDir.Magnitude();
3282 if ( aLength <= gp::Resolution() )
3283 return Standard_False;
3284 gp_Lin2d aLine( theFirstPoint, aDir );
3285
3286 //
3287 Handle(Geom2d_Line) aCLine = new Geom2d_Line( aLine );
3288 Handle(Geom2d_TrimmedCurve) aC1 = new Geom2d_TrimmedCurve( aCLine, 0, aLength );
3289 Handle(Geom2d_Circle) aC2 = new Geom2d_Circle( aCircle );
3290
3291 Standard_Real aTol = aRadius * 0.001;
3292 aTol = ( aTol < Precision::PConfusion() ) ? Precision::PConfusion() : aTol;
3293
3294 Geom2dAPI_InterCurveCurve anIntersector;
3295 anIntersector.Init( aC1, aC2, aTol );
3296
3297 if ( anIntersector.NbPoints() == 0 )
3298 return Standard_False;
3299
3300 Standard_Boolean aFound = Standard_False;
3301 Standard_Real aMinDist = aLength * aLength;
3302 Standard_Integer i = 0;
3303 for ( i = 1; i <= anIntersector.NbPoints(); i++ ) {
3304 gp_Pnt2d aPInt = anIntersector.Point( i );
3305 if ( aPInt.SquareDistance( theFirstPoint ) < aMinDist ) {
3306 if ( ( aPInt.X() >= theUmin ) && ( aPInt.X() <= theUmax ) &&
3307 ( aPInt.Y() >= theVmin ) && ( aPInt.Y() <= theVmax ) ) {
3308 theNewPoint = aPInt;
3309 aFound = Standard_True;
3310 }
3311 }
3312 }
3313
3314 return aFound;
3315}
3316
3317// ------------------------------------------------------------------------------------------------
3318// static function: IsInsideTanZone
3319// purpose: Check if point is inside a radial tangent zone
3320// ------------------------------------------------------------------------------------------------
3321Standard_Boolean IsInsideTanZone(const gp_Pnt2d& thePoint,
3322 const gp_Pnt2d& theTanZoneCenter,
3323 const Standard_Real theZoneRadius,
3324 Handle(GeomAdaptor_HSurface) theGASurface) {
3325
3326 Standard_Real aUResolution = theGASurface->UResolution( theZoneRadius );
3327 Standard_Real aVResolution = theGASurface->VResolution( theZoneRadius );
3328 Standard_Real aRadiusSQR = ( aUResolution < aVResolution ) ? aUResolution : aVResolution;
3329 aRadiusSQR *= aRadiusSQR;
3330 if ( thePoint.SquareDistance( theTanZoneCenter ) <= aRadiusSQR )
3331 return Standard_True;
3332 return Standard_False;
3333}
3334
3335// ------------------------------------------------------------------------------------------------
3336// static function: CheckTangentZonesExist
3337// purpose: Check if tangent zone exists
3338// ------------------------------------------------------------------------------------------------
3339Standard_Boolean CheckTangentZonesExist( const Handle(GeomAdaptor_HSurface)& theSurface1,
3340 const Handle(GeomAdaptor_HSurface)& theSurface2 )
3341{
3342 if ( ( theSurface1->GetType() != GeomAbs_Torus ) ||
3343 ( theSurface2->GetType() != GeomAbs_Torus ) )
3344 return Standard_False;
3345
7fd59977 3346 gp_Torus aTor1 = theSurface1->Torus();
3347 gp_Torus aTor2 = theSurface2->Torus();
3348
3349 if ( aTor1.Location().Distance( aTor2.Location() ) > Precision::Confusion() )
3350 return Standard_False;
3351
3352 if ( ( fabs( aTor1.MajorRadius() - aTor2.MajorRadius() ) > Precision::Confusion() ) ||
3353 ( fabs( aTor1.MinorRadius() - aTor2.MinorRadius() ) > Precision::Confusion() ) )
3354 return Standard_False;
3355
3356 if ( ( aTor1.MajorRadius() < aTor1.MinorRadius() ) ||
3357 ( aTor2.MajorRadius() < aTor2.MinorRadius() ) )
3358 return Standard_False;
3359 return Standard_True;
3360}
3361
3362// ------------------------------------------------------------------------------------------------
3363// static function: ComputeTangentZones
3364// purpose:
3365// ------------------------------------------------------------------------------------------------
3366Standard_Integer ComputeTangentZones( const Handle(GeomAdaptor_HSurface)& theSurface1,
3367 const Handle(GeomAdaptor_HSurface)& theSurface2,
3368 const TopoDS_Face& theFace1,
3369 const TopoDS_Face& theFace2,
3370 Handle(TColgp_HArray1OfPnt2d)& theResultOnS1,
3371 Handle(TColgp_HArray1OfPnt2d)& theResultOnS2,
4f189102 3372 Handle(TColStd_HArray1OfReal)& theResultRadius,
4e57c75e 3373 const Handle(BOPInt_Context)& aContext)
4f189102 3374{
7fd59977 3375 Standard_Integer aResult = 0;
3376 if ( !CheckTangentZonesExist( theSurface1, theSurface2 ) )
3377 return aResult;
3378
7fd59977 3379
3380 TColgp_SequenceOfPnt2d aSeqResultS1, aSeqResultS2;
3381 TColStd_SequenceOfReal aSeqResultRad;
3382
3383 gp_Torus aTor1 = theSurface1->Torus();
3384 gp_Torus aTor2 = theSurface2->Torus();
3385
3386 gp_Ax2 anax1( aTor1.Location(), aTor1.Axis().Direction() );
3387 gp_Ax2 anax2( aTor2.Location(), aTor2.Axis().Direction() );
3388 Standard_Integer j = 0;
3389
3390 for ( j = 0; j < 2; j++ ) {
3391 Standard_Real aCoef = ( j == 0 ) ? -1 : 1;
3392 Standard_Real aRadius1 = fabs(aTor1.MajorRadius() + aCoef * aTor1.MinorRadius());
3393 Standard_Real aRadius2 = fabs(aTor2.MajorRadius() + aCoef * aTor2.MinorRadius());
3394
3395 gp_Circ aCircle1( anax1, aRadius1 );
3396 gp_Circ aCircle2( anax2, aRadius2 );
3397
3398 // roughly compute radius of tangent zone for perpendicular case
3399 Standard_Real aCriteria = Precision::Confusion() * 0.5;
3400
3401 Standard_Real aT1 = aCriteria;
3402 Standard_Real aT2 = aCriteria;
3403 if ( j == 0 ) {
3404 // internal tangency
3405 Standard_Real aR = ( aRadius1 > aTor2.MinorRadius() ) ? aRadius1 : aTor2.MinorRadius();
3406 //aT1 = aCriteria * aCriteria + aR * aR - ( aR - aCriteria ) * ( aR - aCriteria );
3407 aT1 = 2. * aR * aCriteria;
3408 aT2 = aT1;
3409 }
3410 else {
3411 // external tangency
3412 Standard_Real aRb = ( aRadius1 > aTor2.MinorRadius() ) ? aRadius1 : aTor2.MinorRadius();
3413 Standard_Real aRm = ( aRadius1 < aTor2.MinorRadius() ) ? aRadius1 : aTor2.MinorRadius();
3414 Standard_Real aDelta = aRb - aCriteria;
3415 aDelta *= aDelta;
3416 aDelta -= aRm * aRm;
3417 aDelta /= 2. * (aRb - aRm);
3418 aDelta -= 0.5 * (aRb - aRm);
3419
3420 aT1 = 2. * aRm * (aRm - aDelta);
3421 aT2 = aT1;
3422 }
3423 aCriteria = ( aT1 > aT2) ? aT1 : aT2;
3424 if ( aCriteria > 0 )
3425 aCriteria = sqrt( aCriteria );
3426
3427 if ( aCriteria > 0.5 * aTor1.MinorRadius() ) {
3428 // too big zone -> drop to minimum
3429 aCriteria = Precision::Confusion();
3430 }
3431
3432 GeomAdaptor_Curve aC1( new Geom_Circle(aCircle1) );
3433 GeomAdaptor_Curve aC2( new Geom_Circle(aCircle2) );
c6541a0c 3434 Extrema_ExtCC anExtrema(aC1, aC2, 0, 2. * M_PI, 0, 2. * M_PI,
7fd59977 3435 Precision::PConfusion(), Precision::PConfusion());
3436
3437 if ( anExtrema.IsDone() ) {
3438
3439 Standard_Integer i = 0;
3440 for ( i = 1; i <= anExtrema.NbExt(); i++ ) {
3441 if ( anExtrema.SquareDistance(i) > aCriteria * aCriteria )
3442 continue;
3443
3444 Extrema_POnCurv P1, P2;
3445 anExtrema.Points( i, P1, P2 );
3446
3447 Standard_Boolean bFoundResult = Standard_True;
3448 gp_Pnt2d pr1, pr2;
3449
3450 Standard_Integer surfit = 0;
3451 for ( surfit = 0; surfit < 2; surfit++ ) {
4f189102
P
3452 GeomAPI_ProjectPointOnSurf& aProjector =
3453 (surfit == 0) ? aContext->ProjPS(theFace1) : aContext->ProjPS(theFace2);
7fd59977 3454
3455 gp_Pnt aP3d = (surfit == 0) ? P1.Value() : P2.Value();
3456 aProjector.Perform(aP3d);
3457
3458 if(!aProjector.IsDone())
3459 bFoundResult = Standard_False;
3460 else {
3461 if(aProjector.LowerDistance() > aCriteria) {
3462 bFoundResult = Standard_False;
3463 }
3464 else {
3465 Standard_Real foundU = 0, foundV = 0;
3466 aProjector.LowerDistanceParameters(foundU, foundV);
3467 if ( surfit == 0 )
3468 pr1 = gp_Pnt2d( foundU, foundV );
3469 else
3470 pr2 = gp_Pnt2d( foundU, foundV );
3471 }
3472 }
3473 }
3474 if ( bFoundResult ) {
3475 aSeqResultS1.Append( pr1 );
3476 aSeqResultS2.Append( pr2 );
3477 aSeqResultRad.Append( aCriteria );
3478
3479 // torus is u and v periodic
c6541a0c 3480 const Standard_Real twoPI = M_PI + M_PI;
7fd59977 3481 Standard_Real arr1tmp[2] = {pr1.X(), pr1.Y()};
3482 Standard_Real arr2tmp[2] = {pr2.X(), pr2.Y()};
3483
3484 // iteration on period bounds
3485 for ( Standard_Integer k1 = 0; k1 < 2; k1++ ) {
3486 Standard_Real aBound = ( k1 == 0 ) ? 0 : twoPI;
3487 Standard_Real aShift = ( k1 == 0 ) ? twoPI : -twoPI;
3488
3489 // iteration on surfaces
3490 for ( Standard_Integer k2 = 0; k2 < 2; k2++ ) {
3491 Standard_Real* arr1 = ( k2 == 0 ) ? arr1tmp : arr2tmp;
3492 Standard_Real* arr2 = ( k2 != 0 ) ? arr1tmp : arr2tmp;
3493 TColgp_SequenceOfPnt2d& aSeqS1 = ( k2 == 0 ) ? aSeqResultS1 : aSeqResultS2;
3494 TColgp_SequenceOfPnt2d& aSeqS2 = ( k2 != 0 ) ? aSeqResultS1 : aSeqResultS2;
3495
3496 if (fabs(arr1[0] - aBound) < Precision::PConfusion()) {
3497 aSeqS1.Append( gp_Pnt2d( arr1[0] + aShift, arr1[1] ) );
3498 aSeqS2.Append( gp_Pnt2d( arr2[0], arr2[1] ) );
3499 aSeqResultRad.Append( aCriteria );
3500 }
3501 if (fabs(arr1[1] - aBound) < Precision::PConfusion()) {
3502 aSeqS1.Append( gp_Pnt2d( arr1[0], arr1[1] + aShift) );
3503 aSeqS2.Append( gp_Pnt2d( arr2[0], arr2[1] ) );
3504 aSeqResultRad.Append( aCriteria );
3505 }
3506 }
3507 } //
3508 }
3509 }
3510 }
3511 }
3512 aResult = aSeqResultRad.Length();
3513
3514 if ( aResult > 0 ) {
3515 theResultOnS1 = new TColgp_HArray1OfPnt2d( 1, aResult );
3516 theResultOnS2 = new TColgp_HArray1OfPnt2d( 1, aResult );
3517 theResultRadius = new TColStd_HArray1OfReal( 1, aResult );
3518
3519 for ( Standard_Integer i = 1 ; i <= aResult; i++ ) {
3520 theResultOnS1->SetValue( i, aSeqResultS1.Value(i) );
3521 theResultOnS2->SetValue( i, aSeqResultS2.Value(i) );
3522 theResultRadius->SetValue( i, aSeqResultRad.Value(i) );
3523 }
3524 }
3525 return aResult;
3526}
3527
3528// ------------------------------------------------------------------------------------------------
3529// static function: AdjustByNeighbour
3530// purpose:
3531// ------------------------------------------------------------------------------------------------
3532gp_Pnt2d AdjustByNeighbour(const gp_Pnt2d& theaNeighbourPoint,
3533 const gp_Pnt2d& theOriginalPoint,
3534 Handle(GeomAdaptor_HSurface) theGASurface) {
3535
3536 gp_Pnt2d ap1 = theaNeighbourPoint;
3537 gp_Pnt2d ap2 = theOriginalPoint;
3538
3539 if ( theGASurface->IsUPeriodic() ) {
3540 Standard_Real aPeriod = theGASurface->UPeriod();
3541 gp_Pnt2d aPTest = ap2;
3542 Standard_Real aSqDistMin = 1.e+100;
3543
3544 for ( Standard_Integer pIt = -1; pIt <= 1; pIt++) {
3545 aPTest.SetX( theOriginalPoint.X() + aPeriod * pIt );
3546 Standard_Real dd = ap1.SquareDistance( aPTest );
3547
3548 if ( dd < aSqDistMin ) {
3549 ap2 = aPTest;
3550 aSqDistMin = dd;
3551 }
3552 }
3553 }
3554 if ( theGASurface->IsVPeriodic() ) {
3555 Standard_Real aPeriod = theGASurface->VPeriod();
3556 gp_Pnt2d aPTest = ap2;
3557 Standard_Real aSqDistMin = 1.e+100;
3558