1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and / or modify it
6 // under the terms of the GNU Lesser General Public version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
14 #define No_Standard_OutOfRange
16 #include <Adaptor3d_CurveOnSurface.ixx>
18 #include <gp_Pnt2d.hxx>
19 #include <gp_Vec2d.hxx>
20 #include <gp_Ax22d.hxx>
21 #include <gp_Lin2d.hxx>
22 #include <gp_Circ2d.hxx>
23 #include <gp_Elips2d.hxx>
24 #include <gp_Hypr2d.hxx>
25 #include <gp_Parab2d.hxx>
26 #include <Geom_BSplineSurface.hxx>
27 #include <Geom_SurfaceOfRevolution.hxx>
28 #include <Geom_SurfaceOfLinearExtrusion.hxx>
29 #include <Geom_OffsetSurface.hxx>
30 #include <Geom2d_BezierCurve.hxx>
31 #include <Geom2d_BSplineCurve.hxx>
32 #include <Precision.hxx>
33 #include <TColgp_Array1OfPnt2d.hxx>
34 #include <TColgp_Array1OfPnt.hxx>
35 #include <TColStd_Array1OfReal.hxx>
36 #include <TColStd_Array1OfInteger.hxx>
37 #include <Standard_NotImplemented.hxx>
38 #include <Adaptor3d_HCurveOnSurface.hxx>
41 #include <Adaptor3d_InterFunc.hxx>
42 #include <math_FunctionRoots.hxx>
43 #include <SortTools_StraightInsertionSortOfReal.hxx>
44 #include <TCollection_CompareOfReal.hxx>
46 #include <TColStd_SetIteratorOfSetOfReal.hxx>
47 #include <TColStd_SetOfReal.hxx>
48 #include <TColStd_HSetOfReal.hxx>
50 static gp_Pnt to3d(const gp_Pln& Pl, const gp_Pnt2d& P)
52 return ElSLib::Value(P.X(),P.Y(),Pl);
55 static gp_Vec to3d(const gp_Pln& Pl, const gp_Vec2d& V)
57 gp_Vec Vx = Pl.XAxis().Direction();
58 gp_Vec Vy = Pl.YAxis().Direction();
65 static gp_Ax2 to3d(const gp_Pln& Pl, const gp_Ax22d& A)
67 gp_Pnt P = to3d(Pl,A.Location());
68 gp_Vec VX = to3d(Pl,A.XAxis().Direction());
69 gp_Vec VY = to3d(Pl,A.YAxis().Direction());
70 return gp_Ax2(P,VX.Crossed(VY),VX);
73 static gp_Circ to3d(const gp_Pln& Pl, const gp_Circ2d& C)
75 return gp_Circ(to3d(Pl,C.Axis()),C.Radius());
78 static gp_Elips to3d(const gp_Pln& Pl, const gp_Elips2d& E)
80 return gp_Elips(to3d(Pl,E.Axis()),E.MajorRadius(),E.MinorRadius());
83 static gp_Hypr to3d(const gp_Pln& Pl, const gp_Hypr2d& H)
85 return gp_Hypr(to3d(Pl,H.Axis()),H.MajorRadius(),H.MinorRadius());
88 static gp_Parab to3d(const gp_Pln& Pl, const gp_Parab2d& P)
90 return gp_Parab(to3d(Pl,P.Axis()),P.Focal());
93 static gp_Vec SetLinearForm(const gp_Vec2d DW, const gp_Vec2d D2W,const gp_Vec2d D3W,
94 const gp_Vec D1U, const gp_Vec D1V, const gp_Vec D2U,
95 const gp_Vec D2V, const gp_Vec D2UV, const gp_Vec D3U,
96 const gp_Vec D3V, const gp_Vec D3UUV,const gp_Vec D3UVV)
97 {gp_Vec V31, V32, V33, V34,V3 ;
98 V31.SetLinearForm(DW.X(),D1U,
100 D2W.X()*DW.Y(),D2UV);
101 V31.SetLinearForm(D3W.Y(),D1V,
105 V32.SetLinearForm(DW.X()*DW.X()*DW.Y(),D3UUV,
106 DW.X()*DW.Y()*DW.Y(),D3UVV);
107 V32.SetLinearForm(D2W.X()*DW.Y()+DW.X()*D2W.Y(),D2UV,
108 DW.X()*DW.Y()*DW.Y(),D3UVV,
110 V33.SetLinearForm(2*D2W.X()*DW.X(),D2U,
111 DW.X()*DW.X()*DW.X(),D3U,
112 DW.X()*DW.X()*DW.Y(),D3UUV);
114 V34.SetLinearForm(2*D2W.Y()*DW.Y(),D2V,
115 DW.Y()*DW.Y()*DW.X(),D3UVV,
116 DW.Y()*DW.Y()*DW.Y(),D3V);
117 V3.SetLinearForm(1,V31,2,V32,1,V33,V34);
121 //=======================================================================
122 static void CompareBounds(gp_Pnt2d& P1,
125 Standard_Real Lx = P1.X(),Ly = P1.Y();
126 Standard_Real Rx = P2.X(),Ry = P2.Y();
128 if (Lx > Rx) { P1.SetX(Rx); P2.SetX(Lx);}
129 if (Ly > Ry) { P1.SetY(Ry); P2.SetY(Ly);}
132 //=======================================================================
135 //=======================================================================
136 static void Hunt(const TColStd_Array1OfReal& Arr,
137 const Standard_Real Coord,
138 Standard_Integer& Iloc)
139 {//Warning: Hunt is used to find number of knot which equals co-ordinate component,
140 // when co-ordinate component definitly equals a knot only.
141 Standard_Real Tol=Precision::PConfusion()/10;
142 Standard_Integer i=1;
143 while((i <= Arr.Upper()) && (Abs(Coord - Arr(i)) > Tol)){
146 if(Abs(Coord - Arr(i)) < Tol)
149 if(Abs(Coord - Arr(i)) > Tol)
150 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface:Hunt");
153 //=======================================================================
154 //function :ReverseParam
156 //=======================================================================
158 static void ReverseParam(const Standard_Real In1,
159 const Standard_Real In2,
161 Standard_Real& Out2 )
164 if(In1>In2) {Out1=In2;
169 //=======================================================================
170 //function :ReverseParam
172 //=======================================================================
174 static void ReverseParam(const Standard_Integer In1,
175 const Standard_Integer In2,
176 Standard_Integer& Out1,
177 Standard_Integer& Out2 )
179 if(In1>In2) {Out1=In2;
185 //=======================================================================
186 //function :FindBounds
188 //=======================================================================
189 static void FindBounds(const TColStd_Array1OfReal& Arr,
190 const Standard_Real Coord,
191 const Standard_Real Der,
192 Standard_Integer& Bound1,
193 Standard_Integer& Bound2,
194 Standard_Boolean& DerNull)
198 Standard_Real Tol=Precision::PConfusion()/10;
200 DerNull=Standard_False;
202 if(N==Bound1){ if(Abs(Der) > Tol) DerNull = Standard_False;
203 if(Abs(Der)<= Tol) DerNull = Standard_True;
204 Bound1=N;Bound2=N+1; return;
206 if(N==Bound2){ if( Abs(Der) > Tol ) DerNull = Standard_False;
207 if( Abs(Der)<= Tol ) DerNull = Standard_True;
208 Bound1=N-1;Bound2=N; return;
210 if((N!=Bound1)&&(N!=Bound2)) {
211 if(Abs(Der) > Tol ) {
212 if(Der>0) {Bound1=N;Bound2= N+1;}
214 if(Der<0){Bound1=N-1;Bound2=N;}
215 DerNull = Standard_False;
217 if(Abs(Der) <=Tol ) {
218 DerNull = Standard_True;
225 //=======================================================================
226 //function :Locate1Coord
227 //purpose : along BSpline curve
228 //=======================================================================
230 static void Locate1Coord(const Standard_Integer Index,
233 const Handle(Geom_BSplineCurve)& BSplC,
234 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop)
236 Standard_Real Comp1=0, DComp1=0, cur, f = 0.0, l = 0.0;
237 Standard_Real Tol = Precision::PConfusion()/10;
238 Standard_Integer i = 1, Bnd1, Bnd2;
239 Standard_Boolean DIsNull= Standard_False;
240 TColStd_Array1OfReal Arr(1,BSplC->NbKnots()); BSplC->Knots(Arr);
242 if(Index==1) { Comp1=UV.X(); DComp1=DUV.X(); }
243 if(Index==2) { Comp1=UV.Y(); DComp1=DUV.Y(); }
245 Standard_Integer Lo = BSplC->FirstUKnotIndex(), Up = BSplC->LastUKnotIndex();
248 while ( ( Abs(BSplC->Knot(i)-Comp1)>Tol )&& (i!=Up ) ) i++;
251 if( Abs(Comp1-cur)<=Tol) {
253 Bnd1 = Lo; Bnd2 = Up;
254 FindBounds(Arr,cur,DComp1,Bnd1,Bnd2,DIsNull);
255 ReverseParam(Bnd1,Bnd2,Bnd1,Bnd2);
257 if(DIsNull==Standard_False){
258 if(Index==1) {LeftBot.SetX(BSplC->Knot(Bnd1));
259 RightTop.SetX(BSplC->Knot(Bnd2));}
261 if(Index==2){ LeftBot.SetY(BSplC->Knot(Bnd1));
262 RightTop.SetY(BSplC->Knot(Bnd2)); }
265 if(DIsNull==Standard_True){
266 if( Abs( Comp1-(f=BSplC->Knot(Lo))) <= Tol)
268 if(Index==1) { LeftBot.SetX(BSplC->Knot(Lo));
269 RightTop.SetX(BSplC->Knot(Lo+1));}
270 else if(Index==2) { LeftBot.SetY(BSplC->Knot(Lo));
271 RightTop.SetY(BSplC->Knot(Lo+1));}
273 if( Abs( Comp1-(l=BSplC->Knot(Up))) <= Tol)
275 if(Index==1) { LeftBot.SetX(BSplC->Knot(Up-1));
276 RightTop.SetX(BSplC->Knot(Up));}
277 else if(Index==2) {LeftBot.SetY(BSplC->Knot(Up-1));
278 RightTop.SetY(BSplC->Knot(Up));}
280 if(Index==1) { LeftBot.SetX(BSplC->Knot(Bnd1));
281 RightTop.SetX(BSplC->Knot(Bnd2));}
282 else if(Index==2) {LeftBot.SetY(BSplC->Knot(Bnd1));
283 RightTop.SetY(BSplC->Knot(Bnd2));}
286 else//*********if Coord != Knot
290 //if((f=BSplC->Knot(i))<Comp1 && (l=BSplC->Knot(i+1))>Comp1) break;
291 //skl 28.03.2002 for OCC233
294 if(f<Comp1 && l>Comp1) break;
297 ReverseParam(f,l,f,l);
301 { if(Index==1) {LeftBot.SetX(f); RightTop.SetX(l);}else
302 if(Index==2) {LeftBot.SetY(f); RightTop.SetY(l); }
307 if(DComp1>0) {LeftBot.SetX(Comp1); RightTop.SetX(l);} else
308 if(DComp1<0) {LeftBot.SetX(f); RightTop.SetX(Comp1);}
312 if(DComp1>0) {LeftBot.SetY(Comp1); RightTop.SetY(l);} else
313 if(DComp1<0) {LeftBot.SetY(f); RightTop.SetY(Comp1);};
318 if(Index==1) {LeftBot.SetX(Comp1); RightTop.SetX(BSplC->Knot(i));}else
319 if(Index==2) {LeftBot.SetY(Comp1); RightTop.SetY(BSplC->Knot(i)); }
325 //=======================================================================
326 //function :Locate1Coord
328 //=======================================================================
330 static void Locate1Coord(const Standard_Integer Index,
333 const Handle(Geom_BSplineSurface)& BSplS,
334 Standard_Boolean& DIsNull,
338 Standard_Real Comp1=0,DComp1=0;
339 Standard_Real Tol = Precision::PConfusion()/10;
340 Standard_Integer i=1, Up=0, Up1, Up2, Down=0, Down1, Down2;
341 Standard_Real cur = 0.;
343 DIsNull= Standard_False;
345 Up1 = BSplS->LastUKnotIndex();
346 Down1 = BSplS->FirstUKnotIndex();
347 Up2 = BSplS->LastVKnotIndex();
348 Down2 = BSplS->FirstVKnotIndex();
358 while ( ( Abs(BSplS->UKnot(i)-Comp1)>Tol )&&(i!=Up1 ) )
363 cur = BSplS->UKnot(i);
373 while ( ( Abs(BSplS->VKnot(i)-Comp1)>Tol )&&(i!=Up2 ) )
378 cur = BSplS->VKnot(i);
381 if( Abs(Comp1-cur)<=Tol )
383 Standard_Integer Bnd1 = Down, Bnd2 = Up;
386 TColStd_Array1OfReal Arr1(1,BSplS->NbUKnots());
387 BSplS->UKnots(Arr1); // Up1=Arr1.Upper(); Down1=Arr1.Lower();
388 FindBounds(Arr1,cur,DUV.X(),Bnd1,Bnd2,DIsNull);
392 TColStd_Array1OfReal Arr2(1,BSplS->NbVKnots());
393 BSplS->VKnots(Arr2); // Up2=Arr2.Upper(); Down2=Arr2.Lower();
394 FindBounds(Arr2,cur,DUV.Y(),Bnd1,Bnd2,DIsNull);
397 ReverseParam(Bnd1,Bnd2,Bnd1,Bnd2);
399 if(DIsNull==Standard_False)
403 LeftBot.SetX(BSplS->UKnot(Bnd1));
404 RightTop.SetX(BSplS->UKnot(Bnd2));
408 LeftBot.SetY(BSplS->VKnot(Bnd1));
409 RightTop.SetY(BSplS->VKnot(Bnd2));
413 else//*********if Coord != Knot
415 if( (Index==1)&&(Comp1 < BSplS->UKnot(Down)) )
417 LeftBot.SetX(BSplS->UKnot(Down));
418 RightTop.SetX( BSplS->UKnot(Down + 1) );
421 else if( (Index==2)&&(Comp1 < BSplS->VKnot(Down)) )
423 LeftBot.SetY(BSplS->VKnot(Down));
424 RightTop.SetY( BSplS->VKnot(Down + 1) );
427 else if( (Index==1)&&(Comp1 > BSplS->UKnot(Up)) )
429 RightTop.SetX(BSplS->UKnot(Up - 1));
430 LeftBot.SetX( BSplS->UKnot(Up) );
433 else if( (Index==2)&&(Comp1 > BSplS->VKnot(Up)) )
435 RightTop.SetY(BSplS->VKnot(Up - 1));
436 LeftBot.SetY( BSplS->VKnot(Up) );
441 Standard_Real f = 0., l = 1.;
444 f=BSplS->UKnot(Down);
449 f=BSplS->VKnot(Down);
454 if ((!(Comp1 < f))&&(!(Comp1 > l)))
458 while (!(((f=BSplS->UKnot(i)) < Comp1)&&((l=BSplS->UKnot(i+1)) > Comp1)) && (i<Up))
465 while (!(((f=BSplS->VKnot(i)) < Comp1)&&((l=BSplS->VKnot(i+1)) > Comp1)) && (i<Up))
472 ReverseParam(f,l,f,l);
488 RightTop.SetX(Comp1);
501 RightTop.SetY(Comp1);
527 RightTop.SetX(BSplS->UKnot(i));
532 RightTop.SetY(BSplS->VKnot(i));
538 //=======================================================================
539 //function :Locate2Coord
540 //purpose : along non-BSpline curve
541 //=======================================================================
544 static void Locate2Coord(const Standard_Integer Index,
545 const gp_Pnt2d& UV, const gp_Vec2d& DUV,
546 const Standard_Real I1,
547 const Standard_Real I2,
548 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop)
550 Standard_Real Tol=Precision::PConfusion()/10;
551 Standard_Real Comp1=0,DComp1=0;
552 Standard_Boolean DIsNull = Standard_False;
553 if(Index==1) { Comp1=UV.X();
556 if(Index==2) {Comp1=UV.Y();
559 if((Comp1!=I1)&&(Comp1!=I2))
560 { if(Abs(DComp1) > Tol)
562 { if(Index==1) { LeftBot.SetX(I1);
563 RightTop.SetX(Comp1);}
564 if(Index==2) { LeftBot.SetY(I1);
565 RightTop.SetY(Comp1);}
569 { if(Index==1) { LeftBot.SetX(Comp1);
571 if(Index==2) { LeftBot.SetY(Comp1);
574 else { if(Index==1) { LeftBot.SetX(I1);
576 if(Index==2) { LeftBot.SetY(I1);
579 DIsNull=Standard_False;
582 if(Abs(DComp1)<=Tol) { DIsNull = Standard_True;
583 if(Index==1) { LeftBot.SetX(I1) ;
585 if(Index==2) { LeftBot.SetY(I1) ;
589 if(Abs(Comp1-I1)<Tol)
590 { if(Index==1) { LeftBot.SetX(I1) ;
592 if(Index==2) { LeftBot.SetY(I1) ;
596 if(Abs(Comp1-I2)<Tol)
597 { if(Index==1) { LeftBot.SetX(I1);
599 if(Index==2) { LeftBot.SetY(I1);
604 //=======================================================================
605 //function :Locate2Coord
607 //=======================================================================
609 static void Locate2Coord(const Standard_Integer Index,
610 const gp_Pnt2d& UV, const gp_Vec2d& DUV,
611 const Handle(Geom_BSplineSurface)& BSplS,
612 const TColStd_Array1OfReal& Arr,
613 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop)
615 Standard_Real Comp=0,DComp=0,Tmp1=0.0,Tmp2=0.0;
616 Standard_Real Tol=Precision::PConfusion()/10;
617 Standard_Integer N, NUp=0, NLo=0;
621 NUp = BSplS->LastUKnotIndex();
622 NLo = BSplS->FirstUKnotIndex();
627 NUp = BSplS->LastVKnotIndex();
628 NLo = BSplS->FirstVKnotIndex();
631 if((DComp > 0)&&(Abs(DComp)>Tol)) {
634 //limit case: Hunt() cought upper knot. Take the last span.
637 if(Index==1) { Tmp1=BSplS->UKnot(N);
638 Tmp2=BSplS->UKnot(N+1);}
640 if(Index==2) { Tmp1=BSplS->VKnot(N);
641 Tmp2=BSplS->VKnot(N+1);}
643 ReverseParam(Tmp1,Tmp2,Tmp1,Tmp2);
645 if(Index==1) { LeftBot.SetX(Tmp1);
646 RightTop.SetX(Tmp2);}
648 if(Index==2) { LeftBot.SetY(Tmp1);
649 RightTop.SetY(Tmp2);}
652 if((DComp < 0)&&(Abs(DComp)>Tol)){
655 //limit case: Hunt() cought lower knot. Take the first span.
658 if(Index==1) { Tmp1=BSplS->UKnot(N-1);
659 Tmp2=BSplS->UKnot(N);}
661 if(Index==2) { Tmp1=BSplS->VKnot(N-1);
662 Tmp2=BSplS->VKnot(N);}
664 ReverseParam(Tmp1,Tmp2,Tmp1,Tmp2);
666 if(Index==1) { LeftBot.SetX(Tmp1);
667 RightTop.SetX(Tmp2);}
669 if(Index==2) { LeftBot.SetY(Tmp1);
670 RightTop.SetY(Tmp2);}
676 //=======================================================================
677 //function : Adaptor3d_CurveOnSurface
679 //=======================================================================
681 Adaptor3d_CurveOnSurface::Adaptor3d_CurveOnSurface()
682 : myType(GeomAbs_OtherCurve), myIntCont(GeomAbs_CN)
685 //=======================================================================
686 //function : Adaptor3d_CurveOnSurface
688 //=======================================================================
690 Adaptor3d_CurveOnSurface::Adaptor3d_CurveOnSurface
691 (const Handle(Adaptor3d_HSurface)& S)
692 : myType(GeomAbs_OtherCurve), myIntCont(GeomAbs_CN)
697 //=======================================================================
698 //function : Adaptor3d_CurveOnSurface
700 //=======================================================================
702 Adaptor3d_CurveOnSurface::Adaptor3d_CurveOnSurface
703 (const Handle(Adaptor2d_HCurve2d)& C,
704 const Handle(Adaptor3d_HSurface)& S)
705 : myType(GeomAbs_OtherCurve), myIntCont(GeomAbs_CN)
711 //=======================================================================
714 //=======================================================================
716 void Adaptor3d_CurveOnSurface::Load(const Handle(Adaptor3d_HSurface)& S)
719 if (!myCurve.IsNull()) EvalKPart();
722 //=======================================================================
725 //=======================================================================
727 void Adaptor3d_CurveOnSurface::Load(const Handle(Adaptor2d_HCurve2d)& C)
730 if (!mySurface.IsNull())
733 GeomAbs_SurfaceType SType ;
734 SType = mySurface->GetType();
735 if( SType == GeomAbs_BSplineSurface)
737 if( SType == GeomAbs_SurfaceOfExtrusion)
739 if( SType == GeomAbs_SurfaceOfRevolution)
741 if( SType == GeomAbs_OffsetSurface) {
742 SType = mySurface->BasisSurface()->GetType();
743 if( SType == GeomAbs_SurfaceOfRevolution ||
744 SType == GeomAbs_SurfaceOfExtrusion ||
745 SType == GeomAbs_BSplineSurface )
751 //=======================================================================
752 //function : FirstParameter
754 //=======================================================================
756 Standard_Real Adaptor3d_CurveOnSurface::FirstParameter() const
758 return myCurve->FirstParameter();
761 //=======================================================================
762 //function : LastParameter
764 //=======================================================================
766 Standard_Real Adaptor3d_CurveOnSurface::LastParameter() const
768 return myCurve->LastParameter();
771 //=======================================================================
772 //function : Continuity
774 //=======================================================================
776 GeomAbs_Shape Adaptor3d_CurveOnSurface::Continuity() const
778 GeomAbs_Shape ContC = myCurve->Continuity();
779 GeomAbs_Shape ContSu = mySurface->UContinuity();
780 if ( ContSu < ContC) ContC = ContSu;
781 GeomAbs_Shape ContSv = mySurface->VContinuity();
782 if ( ContSv < ContC) ContC = ContSv;
787 //=======================================================================
788 //function : NbIntervals
790 //=======================================================================
792 Standard_Integer Adaptor3d_CurveOnSurface::NbIntervals
793 (const GeomAbs_Shape S)
795 if(S == myIntCont && !myIntervals.IsNull())
796 return myIntervals->Length()-1;
798 Standard_Integer nu,nv,nc,i;
799 nu=mySurface->NbUIntervals(S);
800 nv=mySurface->NbVIntervals(S);
801 Handle(TColStd_HSetOfReal) tmpIntervals = new TColStd_HSetOfReal;
802 TColStd_SetIteratorOfSetOfReal It;
803 TColStd_Array1OfReal TabU(1,nu+1);
804 TColStd_Array1OfReal TabV(1,nv+1);
805 Standard_Integer NbSample = 20;
806 Standard_Real U,V,Tdeb,Tfin;
807 Tdeb=myCurve->FirstParameter();
808 Tfin=myCurve->LastParameter();
809 nc=myCurve->NbIntervals(S);
810 TColStd_Array1OfReal TabC(1,nc+1);
811 myCurve->Intervals(TabC,S);
812 Standard_Real Tol= Precision::PConfusion()/10;
813 for (i=1;i<=nc+1;i++)
814 {tmpIntervals->Add(TabC(i));}
816 Standard_Integer nbpoint=nc+1;
818 { mySurface->UIntervals(TabU,S);
819 for(Standard_Integer iu = 2;iu <= nu; iu++)
820 { U = TabU.Value(iu);
821 Adaptor3d_InterFunc Func(myCurve,U,1);
822 math_FunctionRoots Resol(Func,Tdeb,Tfin,NbSample,Tol,Tol,Tol,0.);
824 { if (!Resol.IsAllNull())
825 { Standard_Integer nsol=Resol.NbSolutions();
826 for ( i=1;i<=nsol;i++)
827 { Standard_Real param =Resol.Value(i);
828 { Standard_Boolean insere=Standard_True;
829 for (It.Initialize(tmpIntervals->Set());It.More();It.Next())
830 { if (Abs(param- It.Value())<=Tol)
831 insere=Standard_False;}
834 tmpIntervals->Add(param);}
843 { mySurface->VIntervals(TabV,S);
844 for(Standard_Integer iv = 2;iv <= nv; iv++)
845 { V = TabV.Value(iv);
846 Adaptor3d_InterFunc Func(myCurve,V,2);
847 math_FunctionRoots Resol(Func,Tdeb,Tfin,NbSample,Tol,Tol,Tol,0.);
849 { if (!Resol.IsAllNull())
850 { Standard_Integer nsol=Resol.NbSolutions();
851 for ( i=1;i<=nsol;i++)
852 { Standard_Real param =Resol.Value(i);
853 { Standard_Boolean insere=Standard_True;
854 for (It.Initialize(tmpIntervals->Set());It.More();It.Next())
855 { if (Abs(param- It.Value())<=Tol)
856 insere=Standard_False;}
859 tmpIntervals->Add(param);}
867 // for case intervals==1 and first point == last point SetOfReal
868 // contains only one value, therefore it is necessary to add second
869 // value into myIntervals which will be equal first value.
870 myIntervals = new TColStd_HArray1OfReal(1,nbpoint);
872 for (It.Initialize(tmpIntervals->Set());It.More();It.Next())
875 myIntervals->SetValue(i,It.Value());
878 myIntervals->SetValue(2,myIntervals->Value(1));
884 //=======================================================================
885 //function : Intervals
887 //=======================================================================
889 void Adaptor3d_CurveOnSurface::Intervals(TColStd_Array1OfReal& T,
890 const GeomAbs_Shape S)
893 for(Standard_Integer i=1; i<=myIntervals->Length(); i++) {
894 T(i) = myIntervals->Value(i);
896 TCollection_CompareOfReal comp;
897 SortTools_StraightInsertionSortOfReal::Sort(T,comp);
900 //=======================================================================
903 //=======================================================================
905 Handle(Adaptor3d_HCurve) Adaptor3d_CurveOnSurface::Trim
906 (const Standard_Real First,
907 const Standard_Real Last,
908 const Standard_Real Tol) const
910 Handle(Adaptor3d_HCurveOnSurface) HCS = new Adaptor3d_HCurveOnSurface();
911 HCS->ChangeCurve().Load(mySurface);
912 HCS->ChangeCurve().Load(myCurve->Trim(First,Last,Tol));
916 //=======================================================================
917 //function : IsClosed
919 //=======================================================================
921 Standard_Boolean Adaptor3d_CurveOnSurface::IsClosed() const
923 return myCurve->IsClosed();
926 //=======================================================================
927 //function : IsPeriodic
929 //=======================================================================
931 Standard_Boolean Adaptor3d_CurveOnSurface::IsPeriodic() const
933 return myCurve->IsPeriodic();
936 //=======================================================================
939 //=======================================================================
941 Standard_Real Adaptor3d_CurveOnSurface::Period() const
943 return myCurve->Period();
946 //=======================================================================
949 //=======================================================================
951 gp_Pnt Adaptor3d_CurveOnSurface::Value(const Standard_Real U ) const
956 if (myType == GeomAbs_Line ) P = ElCLib::Value(U,myLin );
957 else if (myType == GeomAbs_Circle) P = ElCLib::Value(U,myCirc);
960 mySurface->D0(Puv.X(),Puv.Y(),P);
966 //=======================================================================
969 //=======================================================================
971 void Adaptor3d_CurveOnSurface::D0(const Standard_Real U ,
976 if (myType == GeomAbs_Line ) P = ElCLib::Value(U,myLin );
977 else if (myType == GeomAbs_Circle) P = ElCLib::Value(U,myCirc);
980 mySurface->D0(Puv.X(),Puv.Y(),P);
986 //=======================================================================
989 //=======================================================================
991 void Adaptor3d_CurveOnSurface::D1(const Standard_Real U ,
999 Standard_Real FP = myCurve->FirstParameter();
1000 Standard_Real LP = myCurve->LastParameter();
1002 Standard_Real Tol= Precision::PConfusion()/10;
1003 if( ( Abs(U-FP)<Tol)&&(!myFirstSurf.IsNull()) )
1005 myCurve->D1(U,Puv,Duv);
1006 myFirstSurf->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1007 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1010 if( (Abs(U-LP)<Tol)&&(!myLastSurf.IsNull()) )
1012 myCurve->D1(U,Puv,Duv);
1013 myLastSurf->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1014 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1017 if (myType == GeomAbs_Line ) ElCLib::D1(U,myLin ,P,V);
1018 else if (myType == GeomAbs_Circle) ElCLib::D1(U,myCirc,P,V);
1020 myCurve->D1(U,Puv,Duv);
1021 mySurface->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1022 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1025 //=======================================================================
1028 //=======================================================================
1030 void Adaptor3d_CurveOnSurface::D2(const Standard_Real U,
1037 gp_Vec D1U,D1V,D2U,D2V,D2UV;
1039 Standard_Real FP = myCurve->FirstParameter();
1040 Standard_Real LP = myCurve->LastParameter();
1042 Standard_Real Tol= Precision::PConfusion()/10;
1043 if( (Abs(U-FP)<Tol)&&(!myFirstSurf.IsNull()) )
1045 myCurve->D2(U,UV,DW,D2W);
1046 myFirstSurf->D2(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV);
1048 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1049 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1050 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1053 if( (Abs(U-LP)<Tol)&&(!myLastSurf.IsNull()) )
1055 myCurve->D2(U,UV,DW,D2W);
1056 myLastSurf->D2(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV);
1058 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1059 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1060 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1063 if (myType == GeomAbs_Line ) {
1064 ElCLib::D1(U,myLin,P,V1);
1065 V2.SetCoord(0.,0.,0.);
1067 else if (myType == GeomAbs_Circle) ElCLib::D2(U,myCirc,P,V1,V2);
1069 myCurve->D2(U,UV,DW,D2W);
1070 mySurface->D2(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV);
1072 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1073 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1074 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1078 //=======================================================================
1081 //=======================================================================
1083 void Adaptor3d_CurveOnSurface::D3
1084 (const Standard_Real U,
1091 Standard_Real Tol= Precision::PConfusion()/10;
1093 gp_Vec2d DW,D2W,D3W;
1094 gp_Vec D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV;
1096 Standard_Real FP = myCurve->FirstParameter();
1097 Standard_Real LP = myCurve->LastParameter();
1099 if( (Abs(U-FP)<Tol)&&(!myFirstSurf.IsNull()) )
1100 { myCurve->D3(U,UV,DW,D2W,D3W);
1101 myFirstSurf->D3(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV);
1102 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1103 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1104 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1105 V3=SetLinearForm( DW, D2W, D3W, D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV);
1108 if( (Abs(U-LP)<Tol)&&(!myLastSurf.IsNull()) )
1109 { myCurve->D3(U,UV,DW,D2W,D3W);
1110 myLastSurf->D3(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV);
1111 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1113 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1114 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1115 V3=SetLinearForm( DW, D2W, D3W, D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV);
1118 if (myType == GeomAbs_Line ) {
1119 ElCLib::D1(U,myLin,P,V1);
1120 V2.SetCoord(0.,0.,0.);
1121 V3.SetCoord(0.,0.,0.);
1123 else if (myType == GeomAbs_Circle) ElCLib::D3(U,myCirc,P,V1,V2,V3);
1125 myCurve->D3(U,UV,DW,D2W,D3W);
1126 mySurface->D3(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV);
1127 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1129 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1130 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1131 V3=SetLinearForm( DW, D2W, D3W, D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV);
1136 //=======================================================================
1139 //=======================================================================
1141 gp_Vec Adaptor3d_CurveOnSurface::DN
1142 (const Standard_Real U,
1143 const Standard_Integer N) const
1158 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface:DN");
1165 //=======================================================================
1166 //function : Resolution
1168 //=======================================================================
1170 Standard_Real Adaptor3d_CurveOnSurface::Resolution
1171 (const Standard_Real R3d) const
1173 Standard_Real ru,rv;
1174 ru = mySurface->UResolution(R3d);
1175 rv = mySurface->VResolution(R3d);
1176 return myCurve->Resolution(Min(ru,rv));
1180 //=======================================================================
1181 //function : GetType
1183 //=======================================================================
1185 GeomAbs_CurveType Adaptor3d_CurveOnSurface::GetType() const
1191 //=======================================================================
1194 //=======================================================================
1196 gp_Lin Adaptor3d_CurveOnSurface::Line() const
1198 Standard_NoSuchObject_Raise_if(myType != GeomAbs_Line, "Adaptor3d_CurveOnSurface::Line(): curve is not a line")
1202 //=======================================================================
1205 //=======================================================================
1207 gp_Circ Adaptor3d_CurveOnSurface::Circle() const
1209 Standard_NoSuchObject_Raise_if(myType != GeomAbs_Circle, "Adaptor3d_CurveOnSurface::Line(): curve is not a circle")
1213 //=======================================================================
1214 //function : Ellipse
1216 //=======================================================================
1218 gp_Elips Adaptor3d_CurveOnSurface::Ellipse() const
1220 return to3d(mySurface->Plane(),myCurve->Ellipse());
1223 //=======================================================================
1224 //function : Hyperbola
1226 //=======================================================================
1228 gp_Hypr Adaptor3d_CurveOnSurface::Hyperbola() const
1230 return to3d(mySurface->Plane(),myCurve->Hyperbola());
1233 //=======================================================================
1234 //function : Parabola
1236 //=======================================================================
1238 gp_Parab Adaptor3d_CurveOnSurface::Parabola() const
1240 return to3d(mySurface->Plane(),myCurve->Parabola());
1243 Standard_Integer Adaptor3d_CurveOnSurface::Degree() const
1246 // on a parametric surface should multiply
1247 // return TheCurve2dTool::Degree(myCurve);
1249 return myCurve->Degree();
1252 //=======================================================================
1253 //function : IsRational
1255 //=======================================================================
1257 Standard_Boolean Adaptor3d_CurveOnSurface::IsRational() const
1259 return ( myCurve->IsRational() ||
1260 mySurface->IsURational() ||
1261 mySurface->IsVRational() );
1264 //=======================================================================
1265 //function : NbPoles
1267 //=======================================================================
1269 Standard_Integer Adaptor3d_CurveOnSurface::NbPoles() const
1271 // on a parametric surface should multiply
1272 return myCurve->NbPoles();
1275 //=======================================================================
1276 //function : NbKnots
1278 //=======================================================================
1280 Standard_Integer Adaptor3d_CurveOnSurface::NbKnots() const {
1281 if (mySurface->GetType()==GeomAbs_Plane)
1282 return myCurve->NbKnots();
1284 Standard_NoSuchObject::Raise();
1289 //=======================================================================
1292 //=======================================================================
1294 Handle(Geom_BezierCurve) Adaptor3d_CurveOnSurface::Bezier() const
1296 Standard_NoSuchObject_Raise_if
1297 ( mySurface->GetType() != GeomAbs_Plane,
1298 "Adaptor3d_CurveOnSurface : Bezier");
1300 Handle(Geom2d_BezierCurve) Bez2d = myCurve->Bezier();
1301 Standard_Integer NbPoles = Bez2d->NbPoles();
1303 const gp_Pln& Plane = mySurface->Plane();
1305 TColgp_Array1OfPnt Poles(1,NbPoles);
1306 for ( Standard_Integer i=1; i<= NbPoles; i++) {
1307 Poles(i) = to3d( Plane, Bez2d->Pole(i));
1309 Handle(Geom_BezierCurve) Bez;
1311 if (Bez2d->IsRational()) {
1312 TColStd_Array1OfReal Weights(1,NbPoles);
1313 Bez2d->Weights(Weights);
1314 Bez = new Geom_BezierCurve(Poles,Weights);
1317 Bez = new Geom_BezierCurve(Poles);
1322 //=======================================================================
1323 //function : BSpline
1325 //=======================================================================
1327 Handle(Geom_BSplineCurve) Adaptor3d_CurveOnSurface::BSpline() const
1329 Standard_NoSuchObject_Raise_if
1330 ( mySurface->GetType() != GeomAbs_Plane,
1331 "Adaptor3d_CurveOnSurface : BSpline");
1333 Handle(Geom2d_BSplineCurve) Bsp2d = myCurve->BSpline();
1334 Standard_Integer NbPoles = Bsp2d->NbPoles();
1336 const gp_Pln& Plane = mySurface->Plane();
1338 TColgp_Array1OfPnt Poles(1,NbPoles);
1339 for ( Standard_Integer i=1; i<= NbPoles; i++) {
1340 Poles(i) = to3d( Plane, Bsp2d->Pole(i));
1343 TColStd_Array1OfReal Knots(1,Bsp2d->NbKnots());
1344 TColStd_Array1OfInteger Mults(1,Bsp2d->NbKnots());
1345 Bsp2d->Knots(Knots);
1346 Bsp2d->Multiplicities(Mults);
1348 Handle(Geom_BSplineCurve) Bsp;
1350 if (Bsp2d->IsRational()) {
1351 TColStd_Array1OfReal Weights(1,NbPoles);
1352 Bsp2d->Weights(Weights);
1353 Bsp = new Geom_BSplineCurve(Poles,Weights,Knots,Mults,
1355 Bsp2d->IsPeriodic());
1358 Bsp = new Geom_BSplineCurve(Poles,Knots,Mults,
1360 Bsp2d->IsPeriodic());
1365 //=======================================================================
1366 //function : GetCurve
1368 //=======================================================================
1370 const Handle(Adaptor2d_HCurve2d)& Adaptor3d_CurveOnSurface::GetCurve() const
1375 //=======================================================================
1376 //function : GetSurface
1378 //=======================================================================
1380 const Handle(Adaptor3d_HSurface)& Adaptor3d_CurveOnSurface::GetSurface() const
1385 //=======================================================================
1386 //function : ChangeCurve
1388 //=======================================================================
1390 Handle(Adaptor2d_HCurve2d)& Adaptor3d_CurveOnSurface::ChangeCurve()
1395 //=======================================================================
1396 //function : ChangeSurface
1398 //=======================================================================
1400 Handle(Adaptor3d_HSurface)& Adaptor3d_CurveOnSurface::ChangeSurface() {
1404 //=======================================================================
1405 //function : EvalKPart
1407 //=======================================================================
1409 void Adaptor3d_CurveOnSurface::EvalKPart()
1411 myType = GeomAbs_OtherCurve;
1413 GeomAbs_SurfaceType STy = mySurface->GetType();
1414 GeomAbs_CurveType CTy = myCurve->GetType();
1415 if (STy == GeomAbs_Plane) {
1417 if (myType == GeomAbs_Circle)
1418 myCirc = to3d(mySurface->Plane(),myCurve->Circle());
1419 else if (myType == GeomAbs_Line) {
1424 myCurve->D1(0.,Puv,Duv);
1426 mySurface->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1427 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1428 myLin = gp_Lin(P,V);
1432 if ( CTy == GeomAbs_Line) {
1433 gp_Dir2d D = myCurve->Line().Direction();
1434 if ( D.IsParallel(gp::DX2d(),Precision::Angular())) { // Iso V.
1435 if ( STy == GeomAbs_Sphere) {
1436 gp_Pnt2d P = myCurve->Line().Location();
1437 if ( Abs( Abs(P.Y()) -M_PI/2. ) >= Precision::PConfusion()) {
1438 myType = GeomAbs_Circle;
1439 gp_Sphere Sph = mySurface->Sphere();
1440 gp_Ax3 Axis = Sph.Position();
1441 myCirc = ElSLib::SphereVIso(Axis,
1444 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1445 gp_Ax1 AxeRev(Axis.Location(), DRev);
1446 myCirc.Rotate(AxeRev, P.X());
1447 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1448 gp_Ax2 Ax = myCirc.Position();
1449 Ax.SetDirection(Ax.Direction().Reversed());
1450 myCirc.SetPosition(Ax);
1454 else if ( STy == GeomAbs_Cylinder) {
1455 myType = GeomAbs_Circle;
1456 gp_Cylinder Cyl = mySurface->Cylinder();
1457 gp_Pnt2d P = myCurve->Line().Location();
1458 gp_Ax3 Axis = Cyl.Position();
1459 myCirc = ElSLib::CylinderVIso(Axis,
1462 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1463 gp_Ax1 AxeRev(Axis.Location(), DRev);
1464 myCirc.Rotate(AxeRev, P.X());
1465 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1466 gp_Ax2 Ax = myCirc.Position();
1467 Ax.SetDirection(Ax.Direction().Reversed());
1468 myCirc.SetPosition(Ax);
1471 else if ( STy == GeomAbs_Cone) {
1472 myType = GeomAbs_Circle;
1473 gp_Cone Cone = mySurface->Cone();
1474 gp_Pnt2d P = myCurve->Line().Location();
1475 gp_Ax3 Axis = Cone.Position();
1476 myCirc = ElSLib::ConeVIso(Axis,
1480 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1481 gp_Ax1 AxeRev(Axis.Location(), DRev);
1482 myCirc.Rotate(AxeRev, P.X());
1483 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1484 gp_Ax2 Ax = myCirc.Position();
1485 Ax.SetDirection(Ax.Direction().Reversed());
1486 myCirc.SetPosition(Ax);
1489 else if ( STy == GeomAbs_Torus) {
1490 myType = GeomAbs_Circle;
1491 gp_Torus Tore = mySurface->Torus();
1492 gp_Pnt2d P = myCurve->Line().Location();
1493 gp_Ax3 Axis = Tore.Position();
1494 myCirc = ElSLib::TorusVIso(Axis,
1498 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1499 gp_Ax1 AxeRev(Axis.Location(), DRev);
1500 myCirc.Rotate(AxeRev, P.X());
1501 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1502 gp_Ax2 Ax = myCirc.Position();
1503 Ax.SetDirection(Ax.Direction().Reversed());
1504 myCirc.SetPosition(Ax);
1508 else if ( D.IsParallel(gp::DY2d(),Precision::Angular())) { // Iso U.
1509 if ( STy == GeomAbs_Sphere) {
1510 myType = GeomAbs_Circle;
1511 gp_Sphere Sph = mySurface->Sphere();
1512 gp_Pnt2d P = myCurve->Line().Location();
1513 gp_Ax3 Axis = Sph.Position();
1514 // calcul de l'iso 0.
1515 myCirc = ElSLib::SphereUIso(Axis, Sph.Radius(),0.);
1517 // mise a sameparameter (rotation du cercle - decalage du Y)
1518 gp_Dir DRev = Axis.XDirection().Crossed(Axis. Direction());
1519 gp_Ax1 AxeRev(Axis.Location(),DRev);
1520 myCirc.Rotate(AxeRev, P.Y());
1522 // transformation en iso U ( = P.X())
1523 DRev = Axis.XDirection().Crossed(Axis.YDirection());
1524 AxeRev = gp_Ax1(Axis.Location(), DRev);
1525 myCirc.Rotate(AxeRev, P.X());
1527 if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) {
1528 gp_Ax2 Ax = myCirc.Position();
1529 Ax.SetDirection(Ax.Direction().Reversed());
1530 myCirc.SetPosition(Ax);
1533 else if ( STy == GeomAbs_Cylinder) {
1534 myType = GeomAbs_Line;
1535 gp_Cylinder Cyl = mySurface->Cylinder();
1536 gp_Pnt2d P = myCurve->Line().Location();
1537 myLin = ElSLib::CylinderUIso(Cyl.Position(),
1540 gp_Vec Tr(myLin.Direction());
1542 myLin.Translate(Tr);
1543 if ( D.IsOpposite(gp::DY2d(),Precision::Angular()))
1546 else if ( STy == GeomAbs_Cone) {
1547 myType = GeomAbs_Line;
1548 gp_Cone Cone = mySurface->Cone();
1549 gp_Pnt2d P = myCurve->Line().Location();
1550 myLin = ElSLib::ConeUIso(Cone.Position(),
1554 gp_Vec Tr(myLin.Direction());
1556 myLin.Translate(Tr);
1557 if ( D.IsOpposite(gp::DY2d(),Precision::Angular()))
1560 else if ( STy == GeomAbs_Torus) {
1561 myType = GeomAbs_Circle;
1562 gp_Torus Tore = mySurface->Torus();
1563 gp_Pnt2d P = myCurve->Line().Location();
1564 gp_Ax3 Axis = Tore.Position();
1565 myCirc = ElSLib::TorusUIso(Axis,
1569 myCirc.Rotate(myCirc.Axis(),P.Y());
1571 if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) {
1572 gp_Ax2 Ax = myCirc.Position();
1573 Ax.SetDirection(Ax.Direction().Reversed());
1574 myCirc.SetPosition(Ax);
1581 //=======================================================================
1582 //function :EvalFirstLastSurf
1584 //=======================================================================
1586 void Adaptor3d_CurveOnSurface::EvalFirstLastSurf()
1588 Standard_Real FirstPar,LastPar;
1589 gp_Pnt2d UV, LeftBot, RightTop;
1591 Standard_Real Tol= Precision::PConfusion()/10;
1592 Standard_Boolean Ok = Standard_True;
1595 FirstPar=myCurve->FirstParameter();
1596 myCurve->D1(FirstPar,UV,DUV);
1598 if(DUV.Magnitude() <= Tol) Ok = Standard_False;
1602 switch(mySurface->GetType()) {
1603 case GeomAbs_BSplineSurface :
1604 LocatePart(UV,DUV,mySurface,LeftBot,RightTop);
1606 case GeomAbs_SurfaceOfRevolution :
1607 case GeomAbs_SurfaceOfExtrusion :
1608 Ok = LocatePart_RevExt(UV,DUV,mySurface,LeftBot,RightTop);
1610 case GeomAbs_OffsetSurface :
1611 Ok = LocatePart_Offset(UV,DUV,mySurface,LeftBot,RightTop);
1614 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface::EvalFirstLastSurf");
1621 CompareBounds(LeftBot,RightTop); //SVV
1623 myFirstSurf = mySurface->UTrim(LeftBot.X(),RightTop.X(),Tol);
1624 myFirstSurf = myFirstSurf->VTrim(LeftBot.Y(),RightTop.Y(),Tol);
1628 myFirstSurf = mySurface;
1631 LastPar=myCurve->LastParameter();
1633 myCurve->D1(LastPar,UV,DUV);
1634 DUV.Reverse(); //We want the other part
1636 if(DUV.Magnitude() <= Tol) Ok = Standard_False;
1640 switch(mySurface->GetType()) {
1641 case GeomAbs_BSplineSurface :
1642 LocatePart(UV,DUV,mySurface,LeftBot,RightTop);
1644 case GeomAbs_SurfaceOfRevolution :
1645 case GeomAbs_SurfaceOfExtrusion :
1646 Ok = LocatePart_RevExt(UV,DUV,mySurface,LeftBot,RightTop);
1648 case GeomAbs_OffsetSurface :
1649 Ok = LocatePart_Offset(UV,DUV,mySurface,LeftBot,RightTop);
1652 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface::EvalFirstLastSurf");
1659 CompareBounds(LeftBot, RightTop); //SVV
1661 myLastSurf = mySurface->UTrim(LeftBot.X(),RightTop.X(),Tol);
1662 myLastSurf = myLastSurf->VTrim(LeftBot.Y(),RightTop.Y(),Tol);
1666 myLastSurf = mySurface;
1670 //=======================================================================
1671 //function :LocatePart_RevExt
1672 //purpose : processes Knots
1673 //=======================================================================
1675 Standard_Boolean Adaptor3d_CurveOnSurface::LocatePart_RevExt(const gp_Pnt2d& UV,
1676 const gp_Vec2d& DUV,
1677 const Handle(Adaptor3d_HSurface)& S,
1679 gp_Pnt2d& RightTop) const
1681 Handle(Adaptor3d_HCurve) AHC = S->BasisCurve();
1683 if (AHC->GetType() == GeomAbs_BSplineCurve) {
1684 Handle( Geom_BSplineCurve) BSplC;
1685 BSplC = AHC->BSpline();
1687 if((S->GetType())==GeomAbs_SurfaceOfExtrusion) {
1688 Locate1Coord(1,UV,DUV,BSplC,LeftBot,RightTop);
1689 Locate2Coord(2,UV,DUV,S->FirstVParameter(),S->LastVParameter(),LeftBot,RightTop);
1691 else if((S->GetType())==GeomAbs_SurfaceOfRevolution) {
1692 Locate1Coord(2,UV,DUV,BSplC,LeftBot,RightTop);
1693 Locate2Coord(1,UV,DUV,S->FirstUParameter(),S->LastUParameter(),LeftBot,RightTop);
1696 Standard_Real u1,u2,v1,v2;
1697 ReverseParam(LeftBot.X(),RightTop.X(),u1,u2);
1700 ReverseParam(LeftBot.Y(),RightTop.Y(),v1,v2);
1703 return Standard_True;
1705 return Standard_False;
1708 //=======================================================================
1709 //function :LocatePart_OffsetSurface
1711 //=======================================================================
1713 Standard_Boolean Adaptor3d_CurveOnSurface::
1714 LocatePart_Offset(const gp_Pnt2d& UV, const gp_Vec2d& DUV,
1715 const Handle(Adaptor3d_HSurface)& S,
1716 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const
1718 Standard_Boolean Ok = Standard_True;
1719 Handle( Adaptor3d_HSurface) AHS;
1720 Handle( Geom_BSplineSurface) BSplS;
1721 AHS = S->BasisSurface();
1722 GeomAbs_SurfaceType BasisSType = AHS->GetType();
1723 switch(BasisSType) {
1724 case GeomAbs_SurfaceOfRevolution:
1725 case GeomAbs_SurfaceOfExtrusion :
1726 Ok = LocatePart_RevExt(UV,DUV,AHS,LeftBot,RightTop);
1729 case GeomAbs_BSplineSurface:
1730 LocatePart(UV,DUV,AHS,LeftBot,RightTop);
1739 //=======================================================================
1740 //function :LocatePart
1741 //purpose : for BSplineSurface
1742 //=======================================================================
1744 void Adaptor3d_CurveOnSurface::LocatePart(const gp_Pnt2d& UV, const gp_Vec2d& DUV,
1745 const Handle(Adaptor3d_HSurface)& S,
1746 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const
1748 Handle( Geom_BSplineSurface) BSplS;
1749 BSplS = S->BSpline();
1750 Standard_Boolean DUIsNull=Standard_False,
1751 DVIsNull=Standard_False;
1753 Locate1Coord(1,UV,DUV,BSplS,DUIsNull,LeftBot,RightTop);
1754 Locate1Coord(2,UV,DUV,BSplS,DVIsNull,LeftBot,RightTop);
1756 if((DUIsNull==Standard_True)&&(DVIsNull==Standard_False)) {
1757 TColStd_Array1OfReal ArrU(1,BSplS->NbUKnots());
1758 BSplS->UKnots(ArrU);
1759 Locate2Coord(1,UV,DUV,BSplS,ArrU,LeftBot,RightTop);
1761 else if((DVIsNull==Standard_True)&&(DUIsNull==Standard_False)) {
1762 TColStd_Array1OfReal ArrV(1,BSplS->NbVKnots());
1763 BSplS->VKnots(ArrV);
1764 Locate2Coord(2,UV,DUV,BSplS,ArrV,LeftBot,RightTop);