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 under
6 // the terms of the GNU Lesser General Public License 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 if(Index==1) { Comp1=UV.X();
555 if(Index==2) {Comp1=UV.Y();
558 if((Comp1!=I1)&&(Comp1!=I2))
559 { if(Abs(DComp1) > Tol)
561 { if(Index==1) { LeftBot.SetX(I1);
562 RightTop.SetX(Comp1);}
563 if(Index==2) { LeftBot.SetY(I1);
564 RightTop.SetY(Comp1);}
568 { if(Index==1) { LeftBot.SetX(Comp1);
570 if(Index==2) { LeftBot.SetY(Comp1);
573 else { if(Index==1) { LeftBot.SetX(I1);
575 if(Index==2) { LeftBot.SetY(I1);
580 if(Abs(DComp1)<=Tol) {
581 if(Index==1) { LeftBot.SetX(I1) ;
583 if(Index==2) { LeftBot.SetY(I1) ;
587 if(Abs(Comp1-I1)<Tol)
588 { if(Index==1) { LeftBot.SetX(I1) ;
590 if(Index==2) { LeftBot.SetY(I1) ;
594 if(Abs(Comp1-I2)<Tol)
595 { if(Index==1) { LeftBot.SetX(I1);
597 if(Index==2) { LeftBot.SetY(I1);
602 //=======================================================================
603 //function :Locate2Coord
605 //=======================================================================
607 static void Locate2Coord(const Standard_Integer Index,
608 const gp_Pnt2d& UV, const gp_Vec2d& DUV,
609 const Handle(Geom_BSplineSurface)& BSplS,
610 const TColStd_Array1OfReal& Arr,
611 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop)
613 Standard_Real Comp=0,DComp=0,Tmp1=0.0,Tmp2=0.0;
614 Standard_Real Tol=Precision::PConfusion()/10;
615 Standard_Integer N, NUp=0, NLo=0;
619 NUp = BSplS->LastUKnotIndex();
620 NLo = BSplS->FirstUKnotIndex();
625 NUp = BSplS->LastVKnotIndex();
626 NLo = BSplS->FirstVKnotIndex();
629 if((DComp > 0)&&(Abs(DComp)>Tol)) {
632 //limit case: Hunt() cought upper knot. Take the last span.
635 if(Index==1) { Tmp1=BSplS->UKnot(N);
636 Tmp2=BSplS->UKnot(N+1);}
638 if(Index==2) { Tmp1=BSplS->VKnot(N);
639 Tmp2=BSplS->VKnot(N+1);}
641 ReverseParam(Tmp1,Tmp2,Tmp1,Tmp2);
643 if(Index==1) { LeftBot.SetX(Tmp1);
644 RightTop.SetX(Tmp2);}
646 if(Index==2) { LeftBot.SetY(Tmp1);
647 RightTop.SetY(Tmp2);}
650 if((DComp < 0)&&(Abs(DComp)>Tol)){
653 //limit case: Hunt() cought lower knot. Take the first span.
656 if(Index==1) { Tmp1=BSplS->UKnot(N-1);
657 Tmp2=BSplS->UKnot(N);}
659 if(Index==2) { Tmp1=BSplS->VKnot(N-1);
660 Tmp2=BSplS->VKnot(N);}
662 ReverseParam(Tmp1,Tmp2,Tmp1,Tmp2);
664 if(Index==1) { LeftBot.SetX(Tmp1);
665 RightTop.SetX(Tmp2);}
667 if(Index==2) { LeftBot.SetY(Tmp1);
668 RightTop.SetY(Tmp2);}
674 //=======================================================================
675 //function : Adaptor3d_CurveOnSurface
677 //=======================================================================
679 Adaptor3d_CurveOnSurface::Adaptor3d_CurveOnSurface()
680 : myType(GeomAbs_OtherCurve), myIntCont(GeomAbs_CN)
683 //=======================================================================
684 //function : Adaptor3d_CurveOnSurface
686 //=======================================================================
688 Adaptor3d_CurveOnSurface::Adaptor3d_CurveOnSurface
689 (const Handle(Adaptor3d_HSurface)& S)
690 : myType(GeomAbs_OtherCurve), myIntCont(GeomAbs_CN)
695 //=======================================================================
696 //function : Adaptor3d_CurveOnSurface
698 //=======================================================================
700 Adaptor3d_CurveOnSurface::Adaptor3d_CurveOnSurface
701 (const Handle(Adaptor2d_HCurve2d)& C,
702 const Handle(Adaptor3d_HSurface)& S)
703 : myType(GeomAbs_OtherCurve), myIntCont(GeomAbs_CN)
709 //=======================================================================
712 //=======================================================================
714 void Adaptor3d_CurveOnSurface::Load(const Handle(Adaptor3d_HSurface)& S)
717 if (!myCurve.IsNull()) EvalKPart();
720 //=======================================================================
723 //=======================================================================
725 void Adaptor3d_CurveOnSurface::Load(const Handle(Adaptor2d_HCurve2d)& C)
728 if (!mySurface.IsNull())
731 GeomAbs_SurfaceType SType ;
732 SType = mySurface->GetType();
733 if( SType == GeomAbs_BSplineSurface)
735 if( SType == GeomAbs_SurfaceOfExtrusion)
737 if( SType == GeomAbs_SurfaceOfRevolution)
739 if( SType == GeomAbs_OffsetSurface) {
740 SType = mySurface->BasisSurface()->GetType();
741 if( SType == GeomAbs_SurfaceOfRevolution ||
742 SType == GeomAbs_SurfaceOfExtrusion ||
743 SType == GeomAbs_BSplineSurface )
749 //=======================================================================
750 //function : FirstParameter
752 //=======================================================================
754 Standard_Real Adaptor3d_CurveOnSurface::FirstParameter() const
756 return myCurve->FirstParameter();
759 //=======================================================================
760 //function : LastParameter
762 //=======================================================================
764 Standard_Real Adaptor3d_CurveOnSurface::LastParameter() const
766 return myCurve->LastParameter();
769 //=======================================================================
770 //function : Continuity
772 //=======================================================================
774 GeomAbs_Shape Adaptor3d_CurveOnSurface::Continuity() const
776 GeomAbs_Shape ContC = myCurve->Continuity();
777 GeomAbs_Shape ContSu = mySurface->UContinuity();
778 if ( ContSu < ContC) ContC = ContSu;
779 GeomAbs_Shape ContSv = mySurface->VContinuity();
780 if ( ContSv < ContC) ContC = ContSv;
785 //=======================================================================
786 //function : NbIntervals
788 //=======================================================================
790 Standard_Integer Adaptor3d_CurveOnSurface::NbIntervals
791 (const GeomAbs_Shape S)
793 if(S == myIntCont && !myIntervals.IsNull())
794 return myIntervals->Length()-1;
796 Standard_Integer nu,nv,nc,i;
797 nu=mySurface->NbUIntervals(S);
798 nv=mySurface->NbVIntervals(S);
799 Handle(TColStd_HSetOfReal) tmpIntervals = new TColStd_HSetOfReal;
800 TColStd_SetIteratorOfSetOfReal It;
801 TColStd_Array1OfReal TabU(1,nu+1);
802 TColStd_Array1OfReal TabV(1,nv+1);
803 Standard_Integer NbSample = 20;
804 Standard_Real U,V,Tdeb,Tfin;
805 Tdeb=myCurve->FirstParameter();
806 Tfin=myCurve->LastParameter();
807 nc=myCurve->NbIntervals(S);
808 TColStd_Array1OfReal TabC(1,nc+1);
809 myCurve->Intervals(TabC,S);
810 Standard_Real Tol= Precision::PConfusion()/10;
811 for (i=1;i<=nc+1;i++)
812 {tmpIntervals->Add(TabC(i));}
814 Standard_Integer nbpoint=nc+1;
816 { mySurface->UIntervals(TabU,S);
817 for(Standard_Integer iu = 2;iu <= nu; iu++)
818 { U = TabU.Value(iu);
819 Adaptor3d_InterFunc Func(myCurve,U,1);
820 math_FunctionRoots Resol(Func,Tdeb,Tfin,NbSample,Tol,Tol,Tol,0.);
822 { if (!Resol.IsAllNull())
823 { Standard_Integer nsol=Resol.NbSolutions();
824 for ( i=1;i<=nsol;i++)
825 { Standard_Real param =Resol.Value(i);
826 { Standard_Boolean insere=Standard_True;
827 for (It.Initialize(tmpIntervals->Set());It.More();It.Next())
828 { if (Abs(param- It.Value())<=Tol)
829 insere=Standard_False;}
832 tmpIntervals->Add(param);}
841 { mySurface->VIntervals(TabV,S);
842 for(Standard_Integer iv = 2;iv <= nv; iv++)
843 { V = TabV.Value(iv);
844 Adaptor3d_InterFunc Func(myCurve,V,2);
845 math_FunctionRoots Resol(Func,Tdeb,Tfin,NbSample,Tol,Tol,Tol,0.);
847 { if (!Resol.IsAllNull())
848 { Standard_Integer nsol=Resol.NbSolutions();
849 for ( i=1;i<=nsol;i++)
850 { Standard_Real param =Resol.Value(i);
851 { Standard_Boolean insere=Standard_True;
852 for (It.Initialize(tmpIntervals->Set());It.More();It.Next())
853 { if (Abs(param- It.Value())<=Tol)
854 insere=Standard_False;}
857 tmpIntervals->Add(param);}
865 // for case intervals==1 and first point == last point SetOfReal
866 // contains only one value, therefore it is necessary to add second
867 // value into myIntervals which will be equal first value.
868 myIntervals = new TColStd_HArray1OfReal(1,nbpoint);
870 for (It.Initialize(tmpIntervals->Set());It.More();It.Next())
873 myIntervals->SetValue(i,It.Value());
876 myIntervals->SetValue(2,myIntervals->Value(1));
882 //=======================================================================
883 //function : Intervals
885 //=======================================================================
887 void Adaptor3d_CurveOnSurface::Intervals(TColStd_Array1OfReal& T,
888 const GeomAbs_Shape S)
891 for(Standard_Integer i=1; i<=myIntervals->Length(); i++) {
892 T(i) = myIntervals->Value(i);
894 TCollection_CompareOfReal comp;
895 SortTools_StraightInsertionSortOfReal::Sort(T,comp);
898 //=======================================================================
901 //=======================================================================
903 Handle(Adaptor3d_HCurve) Adaptor3d_CurveOnSurface::Trim
904 (const Standard_Real First,
905 const Standard_Real Last,
906 const Standard_Real Tol) const
908 Handle(Adaptor3d_HCurveOnSurface) HCS = new Adaptor3d_HCurveOnSurface();
909 HCS->ChangeCurve().Load(mySurface);
910 HCS->ChangeCurve().Load(myCurve->Trim(First,Last,Tol));
914 //=======================================================================
915 //function : IsClosed
917 //=======================================================================
919 Standard_Boolean Adaptor3d_CurveOnSurface::IsClosed() const
921 return myCurve->IsClosed();
924 //=======================================================================
925 //function : IsPeriodic
927 //=======================================================================
929 Standard_Boolean Adaptor3d_CurveOnSurface::IsPeriodic() const
931 return myCurve->IsPeriodic();
934 //=======================================================================
937 //=======================================================================
939 Standard_Real Adaptor3d_CurveOnSurface::Period() const
941 return myCurve->Period();
944 //=======================================================================
947 //=======================================================================
949 gp_Pnt Adaptor3d_CurveOnSurface::Value(const Standard_Real U ) const
954 if (myType == GeomAbs_Line ) P = ElCLib::Value(U,myLin );
955 else if (myType == GeomAbs_Circle) P = ElCLib::Value(U,myCirc);
958 mySurface->D0(Puv.X(),Puv.Y(),P);
964 //=======================================================================
967 //=======================================================================
969 void Adaptor3d_CurveOnSurface::D0(const Standard_Real U ,
974 if (myType == GeomAbs_Line ) P = ElCLib::Value(U,myLin );
975 else if (myType == GeomAbs_Circle) P = ElCLib::Value(U,myCirc);
978 mySurface->D0(Puv.X(),Puv.Y(),P);
984 //=======================================================================
987 //=======================================================================
989 void Adaptor3d_CurveOnSurface::D1(const Standard_Real U ,
997 Standard_Real FP = myCurve->FirstParameter();
998 Standard_Real LP = myCurve->LastParameter();
1000 Standard_Real Tol= Precision::PConfusion()/10;
1001 if( ( Abs(U-FP)<Tol)&&(!myFirstSurf.IsNull()) )
1003 myCurve->D1(U,Puv,Duv);
1004 myFirstSurf->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1005 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1008 if( (Abs(U-LP)<Tol)&&(!myLastSurf.IsNull()) )
1010 myCurve->D1(U,Puv,Duv);
1011 myLastSurf->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1012 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1015 if (myType == GeomAbs_Line ) ElCLib::D1(U,myLin ,P,V);
1016 else if (myType == GeomAbs_Circle) ElCLib::D1(U,myCirc,P,V);
1018 myCurve->D1(U,Puv,Duv);
1019 mySurface->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1020 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1023 //=======================================================================
1026 //=======================================================================
1028 void Adaptor3d_CurveOnSurface::D2(const Standard_Real U,
1035 gp_Vec D1U,D1V,D2U,D2V,D2UV;
1037 Standard_Real FP = myCurve->FirstParameter();
1038 Standard_Real LP = myCurve->LastParameter();
1040 Standard_Real Tol= Precision::PConfusion()/10;
1041 if( (Abs(U-FP)<Tol)&&(!myFirstSurf.IsNull()) )
1043 myCurve->D2(U,UV,DW,D2W);
1044 myFirstSurf->D2(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV);
1046 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1047 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1048 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1051 if( (Abs(U-LP)<Tol)&&(!myLastSurf.IsNull()) )
1053 myCurve->D2(U,UV,DW,D2W);
1054 myLastSurf->D2(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV);
1056 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1057 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1058 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1061 if (myType == GeomAbs_Line ) {
1062 ElCLib::D1(U,myLin,P,V1);
1063 V2.SetCoord(0.,0.,0.);
1065 else if (myType == GeomAbs_Circle) ElCLib::D2(U,myCirc,P,V1,V2);
1067 myCurve->D2(U,UV,DW,D2W);
1068 mySurface->D2(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV);
1070 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1071 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1072 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1076 //=======================================================================
1079 //=======================================================================
1081 void Adaptor3d_CurveOnSurface::D3
1082 (const Standard_Real U,
1089 Standard_Real Tol= Precision::PConfusion()/10;
1091 gp_Vec2d DW,D2W,D3W;
1092 gp_Vec D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV;
1094 Standard_Real FP = myCurve->FirstParameter();
1095 Standard_Real LP = myCurve->LastParameter();
1097 if( (Abs(U-FP)<Tol)&&(!myFirstSurf.IsNull()) )
1098 { myCurve->D3(U,UV,DW,D2W,D3W);
1099 myFirstSurf->D3(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV);
1100 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1101 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1102 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1103 V3=SetLinearForm( DW, D2W, D3W, D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV);
1106 if( (Abs(U-LP)<Tol)&&(!myLastSurf.IsNull()) )
1107 { myCurve->D3(U,UV,DW,D2W,D3W);
1108 myLastSurf->D3(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV);
1109 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1111 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1112 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1113 V3=SetLinearForm( DW, D2W, D3W, D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV);
1116 if (myType == GeomAbs_Line ) {
1117 ElCLib::D1(U,myLin,P,V1);
1118 V2.SetCoord(0.,0.,0.);
1119 V3.SetCoord(0.,0.,0.);
1121 else if (myType == GeomAbs_Circle) ElCLib::D3(U,myCirc,P,V1,V2,V3);
1123 myCurve->D3(U,UV,DW,D2W,D3W);
1124 mySurface->D3(UV.X(),UV.Y(),P,D1U,D1V,D2U,D2V,D2UV,D3U,D3V,D3UUV,D3UVV);
1125 V1.SetLinearForm(DW.X(),D1U,DW.Y(),D1V);
1127 V2.SetLinearForm(D2W.X(), D1U, D2W.Y(), D1V, 2.*DW.X()*DW.Y(),D2UV);
1128 V2.SetLinearForm(DW.X()*DW.X(), D2U, DW.Y()*DW.Y(), D2V, V2);
1129 V3=SetLinearForm( DW, D2W, D3W, D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV);
1134 //=======================================================================
1137 //=======================================================================
1139 gp_Vec Adaptor3d_CurveOnSurface::DN
1140 (const Standard_Real U,
1141 const Standard_Integer N) const
1156 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface:DN");
1163 //=======================================================================
1164 //function : Resolution
1166 //=======================================================================
1168 Standard_Real Adaptor3d_CurveOnSurface::Resolution
1169 (const Standard_Real R3d) const
1171 Standard_Real ru,rv;
1172 ru = mySurface->UResolution(R3d);
1173 rv = mySurface->VResolution(R3d);
1174 return myCurve->Resolution(Min(ru,rv));
1178 //=======================================================================
1179 //function : GetType
1181 //=======================================================================
1183 GeomAbs_CurveType Adaptor3d_CurveOnSurface::GetType() const
1189 //=======================================================================
1192 //=======================================================================
1194 gp_Lin Adaptor3d_CurveOnSurface::Line() const
1196 Standard_NoSuchObject_Raise_if(myType != GeomAbs_Line, "Adaptor3d_CurveOnSurface::Line(): curve is not a line")
1200 //=======================================================================
1203 //=======================================================================
1205 gp_Circ Adaptor3d_CurveOnSurface::Circle() const
1207 Standard_NoSuchObject_Raise_if(myType != GeomAbs_Circle, "Adaptor3d_CurveOnSurface::Line(): curve is not a circle")
1211 //=======================================================================
1212 //function : Ellipse
1214 //=======================================================================
1216 gp_Elips Adaptor3d_CurveOnSurface::Ellipse() const
1218 return to3d(mySurface->Plane(),myCurve->Ellipse());
1221 //=======================================================================
1222 //function : Hyperbola
1224 //=======================================================================
1226 gp_Hypr Adaptor3d_CurveOnSurface::Hyperbola() const
1228 return to3d(mySurface->Plane(),myCurve->Hyperbola());
1231 //=======================================================================
1232 //function : Parabola
1234 //=======================================================================
1236 gp_Parab Adaptor3d_CurveOnSurface::Parabola() const
1238 return to3d(mySurface->Plane(),myCurve->Parabola());
1241 Standard_Integer Adaptor3d_CurveOnSurface::Degree() const
1244 // on a parametric surface should multiply
1245 // return TheCurve2dTool::Degree(myCurve);
1247 return myCurve->Degree();
1250 //=======================================================================
1251 //function : IsRational
1253 //=======================================================================
1255 Standard_Boolean Adaptor3d_CurveOnSurface::IsRational() const
1257 return ( myCurve->IsRational() ||
1258 mySurface->IsURational() ||
1259 mySurface->IsVRational() );
1262 //=======================================================================
1263 //function : NbPoles
1265 //=======================================================================
1267 Standard_Integer Adaptor3d_CurveOnSurface::NbPoles() const
1269 // on a parametric surface should multiply
1270 return myCurve->NbPoles();
1273 //=======================================================================
1274 //function : NbKnots
1276 //=======================================================================
1278 Standard_Integer Adaptor3d_CurveOnSurface::NbKnots() const {
1279 if (mySurface->GetType()==GeomAbs_Plane)
1280 return myCurve->NbKnots();
1282 Standard_NoSuchObject::Raise();
1287 //=======================================================================
1290 //=======================================================================
1292 Handle(Geom_BezierCurve) Adaptor3d_CurveOnSurface::Bezier() const
1294 Standard_NoSuchObject_Raise_if
1295 ( mySurface->GetType() != GeomAbs_Plane,
1296 "Adaptor3d_CurveOnSurface : Bezier");
1298 Handle(Geom2d_BezierCurve) Bez2d = myCurve->Bezier();
1299 Standard_Integer NbPoles = Bez2d->NbPoles();
1301 const gp_Pln& Plane = mySurface->Plane();
1303 TColgp_Array1OfPnt Poles(1,NbPoles);
1304 for ( Standard_Integer i=1; i<= NbPoles; i++) {
1305 Poles(i) = to3d( Plane, Bez2d->Pole(i));
1307 Handle(Geom_BezierCurve) Bez;
1309 if (Bez2d->IsRational()) {
1310 TColStd_Array1OfReal Weights(1,NbPoles);
1311 Bez2d->Weights(Weights);
1312 Bez = new Geom_BezierCurve(Poles,Weights);
1315 Bez = new Geom_BezierCurve(Poles);
1320 //=======================================================================
1321 //function : BSpline
1323 //=======================================================================
1325 Handle(Geom_BSplineCurve) Adaptor3d_CurveOnSurface::BSpline() const
1327 Standard_NoSuchObject_Raise_if
1328 ( mySurface->GetType() != GeomAbs_Plane,
1329 "Adaptor3d_CurveOnSurface : BSpline");
1331 Handle(Geom2d_BSplineCurve) Bsp2d = myCurve->BSpline();
1332 Standard_Integer NbPoles = Bsp2d->NbPoles();
1334 const gp_Pln& Plane = mySurface->Plane();
1336 TColgp_Array1OfPnt Poles(1,NbPoles);
1337 for ( Standard_Integer i=1; i<= NbPoles; i++) {
1338 Poles(i) = to3d( Plane, Bsp2d->Pole(i));
1341 TColStd_Array1OfReal Knots(1,Bsp2d->NbKnots());
1342 TColStd_Array1OfInteger Mults(1,Bsp2d->NbKnots());
1343 Bsp2d->Knots(Knots);
1344 Bsp2d->Multiplicities(Mults);
1346 Handle(Geom_BSplineCurve) Bsp;
1348 if (Bsp2d->IsRational()) {
1349 TColStd_Array1OfReal Weights(1,NbPoles);
1350 Bsp2d->Weights(Weights);
1351 Bsp = new Geom_BSplineCurve(Poles,Weights,Knots,Mults,
1353 Bsp2d->IsPeriodic());
1356 Bsp = new Geom_BSplineCurve(Poles,Knots,Mults,
1358 Bsp2d->IsPeriodic());
1363 //=======================================================================
1364 //function : GetCurve
1366 //=======================================================================
1368 const Handle(Adaptor2d_HCurve2d)& Adaptor3d_CurveOnSurface::GetCurve() const
1373 //=======================================================================
1374 //function : GetSurface
1376 //=======================================================================
1378 const Handle(Adaptor3d_HSurface)& Adaptor3d_CurveOnSurface::GetSurface() const
1383 //=======================================================================
1384 //function : ChangeCurve
1386 //=======================================================================
1388 Handle(Adaptor2d_HCurve2d)& Adaptor3d_CurveOnSurface::ChangeCurve()
1393 //=======================================================================
1394 //function : ChangeSurface
1396 //=======================================================================
1398 Handle(Adaptor3d_HSurface)& Adaptor3d_CurveOnSurface::ChangeSurface() {
1402 //=======================================================================
1403 //function : EvalKPart
1405 //=======================================================================
1407 void Adaptor3d_CurveOnSurface::EvalKPart()
1409 myType = GeomAbs_OtherCurve;
1411 GeomAbs_SurfaceType STy = mySurface->GetType();
1412 GeomAbs_CurveType CTy = myCurve->GetType();
1413 if (STy == GeomAbs_Plane) {
1415 if (myType == GeomAbs_Circle)
1416 myCirc = to3d(mySurface->Plane(),myCurve->Circle());
1417 else if (myType == GeomAbs_Line) {
1422 myCurve->D1(0.,Puv,Duv);
1424 mySurface->D1(Puv.X(),Puv.Y(),P,D1U,D1V);
1425 V.SetLinearForm(Duv.X(),D1U,Duv.Y(),D1V);
1426 myLin = gp_Lin(P,V);
1430 if ( CTy == GeomAbs_Line) {
1431 gp_Dir2d D = myCurve->Line().Direction();
1432 if ( D.IsParallel(gp::DX2d(),Precision::Angular())) { // Iso V.
1433 if ( STy == GeomAbs_Sphere) {
1434 gp_Pnt2d P = myCurve->Line().Location();
1435 if ( Abs( Abs(P.Y()) -M_PI/2. ) >= Precision::PConfusion()) {
1436 myType = GeomAbs_Circle;
1437 gp_Sphere Sph = mySurface->Sphere();
1438 gp_Ax3 Axis = Sph.Position();
1439 myCirc = ElSLib::SphereVIso(Axis,
1442 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1443 gp_Ax1 AxeRev(Axis.Location(), DRev);
1444 myCirc.Rotate(AxeRev, P.X());
1445 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1446 gp_Ax2 Ax = myCirc.Position();
1447 Ax.SetDirection(Ax.Direction().Reversed());
1448 myCirc.SetPosition(Ax);
1452 else if ( STy == GeomAbs_Cylinder) {
1453 myType = GeomAbs_Circle;
1454 gp_Cylinder Cyl = mySurface->Cylinder();
1455 gp_Pnt2d P = myCurve->Line().Location();
1456 gp_Ax3 Axis = Cyl.Position();
1457 myCirc = ElSLib::CylinderVIso(Axis,
1460 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1461 gp_Ax1 AxeRev(Axis.Location(), DRev);
1462 myCirc.Rotate(AxeRev, P.X());
1463 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1464 gp_Ax2 Ax = myCirc.Position();
1465 Ax.SetDirection(Ax.Direction().Reversed());
1466 myCirc.SetPosition(Ax);
1469 else if ( STy == GeomAbs_Cone) {
1470 myType = GeomAbs_Circle;
1471 gp_Cone Cone = mySurface->Cone();
1472 gp_Pnt2d P = myCurve->Line().Location();
1473 gp_Ax3 Axis = Cone.Position();
1474 myCirc = ElSLib::ConeVIso(Axis,
1478 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1479 gp_Ax1 AxeRev(Axis.Location(), DRev);
1480 myCirc.Rotate(AxeRev, P.X());
1481 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1482 gp_Ax2 Ax = myCirc.Position();
1483 Ax.SetDirection(Ax.Direction().Reversed());
1484 myCirc.SetPosition(Ax);
1487 else if ( STy == GeomAbs_Torus) {
1488 myType = GeomAbs_Circle;
1489 gp_Torus Tore = mySurface->Torus();
1490 gp_Pnt2d P = myCurve->Line().Location();
1491 gp_Ax3 Axis = Tore.Position();
1492 myCirc = ElSLib::TorusVIso(Axis,
1496 gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection());
1497 gp_Ax1 AxeRev(Axis.Location(), DRev);
1498 myCirc.Rotate(AxeRev, P.X());
1499 if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) {
1500 gp_Ax2 Ax = myCirc.Position();
1501 Ax.SetDirection(Ax.Direction().Reversed());
1502 myCirc.SetPosition(Ax);
1506 else if ( D.IsParallel(gp::DY2d(),Precision::Angular())) { // Iso U.
1507 if ( STy == GeomAbs_Sphere) {
1508 myType = GeomAbs_Circle;
1509 gp_Sphere Sph = mySurface->Sphere();
1510 gp_Pnt2d P = myCurve->Line().Location();
1511 gp_Ax3 Axis = Sph.Position();
1512 // calcul de l'iso 0.
1513 myCirc = ElSLib::SphereUIso(Axis, Sph.Radius(),0.);
1515 // mise a sameparameter (rotation du cercle - decalage du Y)
1516 gp_Dir DRev = Axis.XDirection().Crossed(Axis. Direction());
1517 gp_Ax1 AxeRev(Axis.Location(),DRev);
1518 myCirc.Rotate(AxeRev, P.Y());
1520 // transformation en iso U ( = P.X())
1521 DRev = Axis.XDirection().Crossed(Axis.YDirection());
1522 AxeRev = gp_Ax1(Axis.Location(), DRev);
1523 myCirc.Rotate(AxeRev, P.X());
1525 if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) {
1526 gp_Ax2 Ax = myCirc.Position();
1527 Ax.SetDirection(Ax.Direction().Reversed());
1528 myCirc.SetPosition(Ax);
1531 else if ( STy == GeomAbs_Cylinder) {
1532 myType = GeomAbs_Line;
1533 gp_Cylinder Cyl = mySurface->Cylinder();
1534 gp_Pnt2d P = myCurve->Line().Location();
1535 myLin = ElSLib::CylinderUIso(Cyl.Position(),
1538 gp_Vec Tr(myLin.Direction());
1540 myLin.Translate(Tr);
1541 if ( D.IsOpposite(gp::DY2d(),Precision::Angular()))
1544 else if ( STy == GeomAbs_Cone) {
1545 myType = GeomAbs_Line;
1546 gp_Cone Cone = mySurface->Cone();
1547 gp_Pnt2d P = myCurve->Line().Location();
1548 myLin = ElSLib::ConeUIso(Cone.Position(),
1552 gp_Vec Tr(myLin.Direction());
1554 myLin.Translate(Tr);
1555 if ( D.IsOpposite(gp::DY2d(),Precision::Angular()))
1558 else if ( STy == GeomAbs_Torus) {
1559 myType = GeomAbs_Circle;
1560 gp_Torus Tore = mySurface->Torus();
1561 gp_Pnt2d P = myCurve->Line().Location();
1562 gp_Ax3 Axis = Tore.Position();
1563 myCirc = ElSLib::TorusUIso(Axis,
1567 myCirc.Rotate(myCirc.Axis(),P.Y());
1569 if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) {
1570 gp_Ax2 Ax = myCirc.Position();
1571 Ax.SetDirection(Ax.Direction().Reversed());
1572 myCirc.SetPosition(Ax);
1579 //=======================================================================
1580 //function :EvalFirstLastSurf
1582 //=======================================================================
1584 void Adaptor3d_CurveOnSurface::EvalFirstLastSurf()
1586 Standard_Real FirstPar,LastPar;
1587 gp_Pnt2d UV, LeftBot, RightTop;
1589 Standard_Real Tol= Precision::PConfusion()/10;
1590 Standard_Boolean Ok = Standard_True;
1593 FirstPar=myCurve->FirstParameter();
1594 myCurve->D1(FirstPar,UV,DUV);
1596 if(DUV.Magnitude() <= Tol) Ok = Standard_False;
1600 switch(mySurface->GetType()) {
1601 case GeomAbs_BSplineSurface :
1602 LocatePart(UV,DUV,mySurface,LeftBot,RightTop);
1604 case GeomAbs_SurfaceOfRevolution :
1605 case GeomAbs_SurfaceOfExtrusion :
1606 Ok = LocatePart_RevExt(UV,DUV,mySurface,LeftBot,RightTop);
1608 case GeomAbs_OffsetSurface :
1609 Ok = LocatePart_Offset(UV,DUV,mySurface,LeftBot,RightTop);
1612 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface::EvalFirstLastSurf");
1619 CompareBounds(LeftBot,RightTop); //SVV
1621 myFirstSurf = mySurface->UTrim(LeftBot.X(),RightTop.X(),Tol);
1622 myFirstSurf = myFirstSurf->VTrim(LeftBot.Y(),RightTop.Y(),Tol);
1626 myFirstSurf = mySurface;
1629 LastPar=myCurve->LastParameter();
1631 myCurve->D1(LastPar,UV,DUV);
1632 DUV.Reverse(); //We want the other part
1634 if(DUV.Magnitude() <= Tol) Ok = Standard_False;
1638 switch(mySurface->GetType()) {
1639 case GeomAbs_BSplineSurface :
1640 LocatePart(UV,DUV,mySurface,LeftBot,RightTop);
1642 case GeomAbs_SurfaceOfRevolution :
1643 case GeomAbs_SurfaceOfExtrusion :
1644 Ok = LocatePart_RevExt(UV,DUV,mySurface,LeftBot,RightTop);
1646 case GeomAbs_OffsetSurface :
1647 Ok = LocatePart_Offset(UV,DUV,mySurface,LeftBot,RightTop);
1650 Standard_NotImplemented::Raise("Adaptor3d_CurveOnSurface::EvalFirstLastSurf");
1657 CompareBounds(LeftBot, RightTop); //SVV
1659 myLastSurf = mySurface->UTrim(LeftBot.X(),RightTop.X(),Tol);
1660 myLastSurf = myLastSurf->VTrim(LeftBot.Y(),RightTop.Y(),Tol);
1664 myLastSurf = mySurface;
1668 //=======================================================================
1669 //function :LocatePart_RevExt
1670 //purpose : processes Knots
1671 //=======================================================================
1673 Standard_Boolean Adaptor3d_CurveOnSurface::LocatePart_RevExt(const gp_Pnt2d& UV,
1674 const gp_Vec2d& DUV,
1675 const Handle(Adaptor3d_HSurface)& S,
1677 gp_Pnt2d& RightTop) const
1679 Handle(Adaptor3d_HCurve) AHC = S->BasisCurve();
1681 if (AHC->GetType() == GeomAbs_BSplineCurve) {
1682 Handle( Geom_BSplineCurve) BSplC;
1683 BSplC = AHC->BSpline();
1685 if((S->GetType())==GeomAbs_SurfaceOfExtrusion) {
1686 Locate1Coord(1,UV,DUV,BSplC,LeftBot,RightTop);
1687 Locate2Coord(2,UV,DUV,S->FirstVParameter(),S->LastVParameter(),LeftBot,RightTop);
1689 else if((S->GetType())==GeomAbs_SurfaceOfRevolution) {
1690 Locate1Coord(2,UV,DUV,BSplC,LeftBot,RightTop);
1691 Locate2Coord(1,UV,DUV,S->FirstUParameter(),S->LastUParameter(),LeftBot,RightTop);
1694 Standard_Real u1,u2,v1,v2;
1695 ReverseParam(LeftBot.X(),RightTop.X(),u1,u2);
1698 ReverseParam(LeftBot.Y(),RightTop.Y(),v1,v2);
1701 return Standard_True;
1703 return Standard_False;
1706 //=======================================================================
1707 //function :LocatePart_OffsetSurface
1709 //=======================================================================
1711 Standard_Boolean Adaptor3d_CurveOnSurface::
1712 LocatePart_Offset(const gp_Pnt2d& UV, const gp_Vec2d& DUV,
1713 const Handle(Adaptor3d_HSurface)& S,
1714 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const
1716 Standard_Boolean Ok = Standard_True;
1717 Handle( Adaptor3d_HSurface) AHS;
1718 Handle( Geom_BSplineSurface) BSplS;
1719 AHS = S->BasisSurface();
1720 GeomAbs_SurfaceType BasisSType = AHS->GetType();
1721 switch(BasisSType) {
1722 case GeomAbs_SurfaceOfRevolution:
1723 case GeomAbs_SurfaceOfExtrusion :
1724 Ok = LocatePart_RevExt(UV,DUV,AHS,LeftBot,RightTop);
1727 case GeomAbs_BSplineSurface:
1728 LocatePart(UV,DUV,AHS,LeftBot,RightTop);
1737 //=======================================================================
1738 //function :LocatePart
1739 //purpose : for BSplineSurface
1740 //=======================================================================
1742 void Adaptor3d_CurveOnSurface::LocatePart(const gp_Pnt2d& UV, const gp_Vec2d& DUV,
1743 const Handle(Adaptor3d_HSurface)& S,
1744 gp_Pnt2d& LeftBot, gp_Pnt2d& RightTop) const
1746 Handle( Geom_BSplineSurface) BSplS;
1747 BSplS = S->BSpline();
1748 Standard_Boolean DUIsNull=Standard_False,
1749 DVIsNull=Standard_False;
1751 Locate1Coord(1,UV,DUV,BSplS,DUIsNull,LeftBot,RightTop);
1752 Locate1Coord(2,UV,DUV,BSplS,DVIsNull,LeftBot,RightTop);
1754 if((DUIsNull==Standard_True)&&(DVIsNull==Standard_False)) {
1755 TColStd_Array1OfReal ArrU(1,BSplS->NbUKnots());
1756 BSplS->UKnots(ArrU);
1757 Locate2Coord(1,UV,DUV,BSplS,ArrU,LeftBot,RightTop);
1759 else if((DVIsNull==Standard_True)&&(DUIsNull==Standard_False)) {
1760 TColStd_Array1OfReal ArrV(1,BSplS->NbVKnots());
1761 BSplS->VKnots(ArrV);
1762 Locate2Coord(2,UV,DUV,BSplS,ArrV,LeftBot,RightTop);