1 // File: BRepTools_NurbsConvertModification.cxx
2 // Created: Fri Jul 12 10:16:32 1996
3 // Author: Stagiaire Mary FABIEN
4 // <fbi@animax.paris1.matra-dtv.fr>
7 #include <BRepTools_NurbsConvertModification.ixx>
9 #include <BRepTools.hxx>
10 #include <Standard_NoSuchObject.hxx>
11 #include <Geom_TrimmedCurve.hxx>
12 #include <Geom2d_TrimmedCurve.hxx>
13 #include <Geom_RectangularTrimmedSurface.hxx>
14 #include <Geom_BSplineSurface.hxx>
15 #include <Geom_BSplineCurve.hxx>
16 #include <Geom_BezierSurface.hxx>
17 #include <Geom_BezierCurve.hxx>
18 #include <Geom2d_BSplineCurve.hxx>
19 #include <GeomConvert.hxx>
20 #include <Geom2dConvert.hxx>
21 #include <Geom_Plane.hxx>
22 #include <Geom_Line.hxx>
23 #include <Geom2dAdaptor_Curve.hxx>
24 #include <GeomAdaptor_Curve.hxx>
25 #include <GeomAdaptor_Surface.hxx>
26 #include <Geom2dAdaptor_HCurve.hxx>
27 #include <Geom2dAdaptor_HCurve.hxx>
28 #include <GeomAdaptor_HCurve.hxx>
29 #include <GeomAdaptor_HSurface.hxx>
31 #include <BSplCLib.hxx>
32 #include <Approx_SameParameter.hxx>
33 #include <BRep_Tool.hxx>
34 #include <Extrema_LocateExtPC.hxx>
35 #include <OSD_Chronometer.hxx>
36 #include <gp_GTrsf2d.hxx>
37 #include <gp_TrsfForm.hxx>
40 #include <TopTools_ListIteratorOfListOfShape.hxx>
41 #include <TColStd_ListIteratorOfListOfTransient.hxx>
42 #include <ProjLib_ComputeApprox.hxx>
43 #include <ProjLib_ComputeApproxOnPolarSurface.hxx>
45 #include <BSplCLib.hxx>
46 #include <Geom_Circle.hxx>
47 #include <Geom_Ellipse.hxx>
48 #include <Geom_CylindricalSurface.hxx>
50 #include <TColStd_Array1OfReal.hxx>
51 #include <BRep_TEdge.hxx>
52 #include <BRep_GCurve.hxx>
53 #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx>
55 static void GeomLib_ChangeUBounds(Handle(Geom_BSplineSurface)& aSurface,
56 const Standard_Real newU1,
57 const Standard_Real newU2)
59 TColStd_Array1OfReal knots(1,aSurface->NbUKnots()) ;
60 aSurface->UKnots(knots) ;
61 BSplCLib::Reparametrize(newU1,
64 aSurface->SetUKnots(knots) ;
66 static void GeomLib_ChangeVBounds(Handle(Geom_BSplineSurface)& aSurface,
67 const Standard_Real newV1,
68 const Standard_Real newV2)
70 TColStd_Array1OfReal knots(1,aSurface->NbVKnots()) ;
71 aSurface->VKnots(knots) ;
72 BSplCLib::Reparametrize(newV1,
75 aSurface->SetVKnots(knots) ;
78 //=======================================================================
79 //function : BRepTools_NurbsConvertModification
81 //=======================================================================
83 BRepTools_NurbsConvertModification::BRepTools_NurbsConvertModification()
89 //=======================================================================
90 //function : NewSurface
92 //=======================================================================
94 Standard_Boolean BRepTools_NurbsConvertModification::NewSurface
95 (const TopoDS_Face& F,
96 Handle(Geom_Surface)& S,
99 Standard_Boolean& RevWires,
100 Standard_Boolean& RevFace)
102 Standard_Real U1, U2, curvU1, curvU2, surfU1, surfU2, UTol;
103 Standard_Real V1, V2, curvV1, curvV2, surfV1, surfV2, VTol;
104 RevWires = Standard_False;
105 RevFace = Standard_False;
106 Handle(Geom_Surface) SS = BRep_Tool::Surface(F,L);
107 Handle(Standard_Type) TheTypeSS = SS->DynamicType();
108 if ((TheTypeSS == STANDARD_TYPE(Geom_BSplineSurface)) ||
109 (TheTypeSS == STANDARD_TYPE(Geom_BezierSurface))) {
110 return Standard_False;
113 BRepTools::UVBounds(F,curvU1,curvU2,curvV1,curvV2);
114 Tol = BRep_Tool::Tolerance(F);
115 Standard_Real TolPar = 0.1*Tol;
116 Standard_Boolean IsUp = S->IsUPeriodic(), IsVp = S->IsVPeriodic();
118 U1 = curvU1; U2 = curvU2;
119 V1 = curvV1; V2 = curvV2;
120 SS->Bounds(surfU1,surfU2,surfV1,surfV2);
122 if (Abs(U1 - surfU1) <= TolPar)
124 if (Abs(U2 - surfU2) <= TolPar)
126 if (Abs(V1 - surfV1) <= TolPar)
128 if (Abs(V2 - surfV2) <= TolPar)
132 U1 = Max(surfU1,curvU1);
133 U2 = Min(surfU2,curvU2);
136 V1 = Max(surfV1,curvV1);
137 V2 = Min(surfV2,curvV2);
143 Standard_Real Up = S->UPeriod();
149 Standard_Real Vp = S->VPeriod();
156 Standard_Real dU = Abs(U2 - U1), dV = Abs(V2 - V1);
157 Standard_Real Up = S->UPeriod(), Vp = S->VPeriod();
158 if(Abs(dU - Up) <= TolPar && U2 <= Up) {
159 if(Abs(dV - Vp) <= TolPar && V2 <= Vp) { }
161 SS = new Geom_RectangularTrimmedSurface(S, V1+1e-9, V2-1e-9, Standard_False);
165 if(Abs(dV - Vp) <= TolPar && V2 <= Vp)
166 SS = new Geom_RectangularTrimmedSurface(S, U1+1e-9, U2-1e-9, Standard_True);
168 SS = new Geom_RectangularTrimmedSurface(S, U1+1e-9, U2-1e-9, V1+1e-9, V2-1e-9);
173 Standard_Real dU = Abs(U2 - U1);
174 Standard_Real Up = S->UPeriod();
175 if(Abs(dU - Up) <= TolPar && U2 <= Up)
176 SS = new Geom_RectangularTrimmedSurface(S, V1+1e-9, V2-1e-9, Standard_False);
178 SS = new Geom_RectangularTrimmedSurface(S, U1+1e-9, U2-1e-9, V1+1e-9, V2-1e-9);
182 Standard_Real dV = Abs(V2 - V1);
183 Standard_Real Vp = S->VPeriod();
184 if(Abs(dV - Vp) <= TolPar && V2 <= Vp)
185 SS = new Geom_RectangularTrimmedSurface(S, U1+1e-9, U2-1e-9, Standard_True);
187 SS = new Geom_RectangularTrimmedSurface(S, U1+1e-9, U2-1e-9, V1+1e-9, V2-1e-9);
191 SS = new Geom_RectangularTrimmedSurface(S, U1+1e-9, U2-1e-9, V1+1e-9, V2-1e-9);
195 if (Abs(surfU1-U1) > Tol || Abs(surfU2-U2) > Tol ||
196 Abs(surfV1-V1) > Tol || Abs(surfV2-V2) > Tol)
197 SS = new Geom_RectangularTrimmedSurface(S, U1, U2, V1, V2);
198 SS->Bounds(surfU1,surfU2,surfV1,surfV2);
200 S = GeomConvert::SurfaceToBSplineSurface(SS);
201 Handle(Geom_BSplineSurface) BS = Handle(Geom_BSplineSurface)::DownCast(S) ;
202 BS->Resolution(Tol, UTol, VTol) ;
205 // on recadre les bornes de S sinon les anciennes PCurves sont aux fraises
208 if (Abs(curvU1-surfU1) > UTol && !BS->IsUPeriodic()) {
209 GeomLib_ChangeUBounds(BS, U1,U2) ;
211 if (Abs(curvV1-surfV1) > VTol && !BS->IsVPeriodic()) {
212 GeomLib_ChangeVBounds(BS, V1, V2) ;
215 return Standard_True;
218 static Standard_Boolean IsConvert(const TopoDS_Edge& E)
220 Standard_Boolean isConvert = Standard_False;
221 Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&E.TShape());
222 // iterate on pcurves
223 BRep_ListIteratorOfListOfCurveRepresentation itcr(TE->Curves());
224 for ( ; itcr.More() && !isConvert; itcr.Next() ) {
225 Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itcr.Value());
226 if ( GC.IsNull() || ! GC->IsCurveOnSurface() ) continue;
227 Handle(Geom_Surface) aSurface = GC->Surface();
228 Handle(Geom2d_Curve) aCurve2d = GC->PCurve();
229 isConvert =((!aSurface->IsKind(STANDARD_TYPE(Geom_BSplineSurface)) &&
230 !aSurface->IsKind(STANDARD_TYPE(Geom_BezierSurface))) ||
231 (!aCurve2d->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) &&
232 !aCurve2d->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))));
239 //=======================================================================
240 //function : NewCurve
242 //=======================================================================
244 Standard_Boolean BRepTools_NurbsConvertModification::NewCurve
245 (const TopoDS_Edge& E,
246 Handle(Geom_Curve)& C,
251 Tol = BRep_Tool::Tolerance(E);
252 if(BRep_Tool::Degenerated(E)) {
255 return Standard_True;
259 Handle(Geom_Curve) Caux = BRep_Tool::Curve(E, L, f, l);
261 if ( Caux.IsNull()) {
263 return Standard_False;
265 Handle(Standard_Type) TheType = Caux->DynamicType();
266 if ((TheType == STANDARD_TYPE(Geom_BSplineCurve)) ||
267 (TheType == STANDARD_TYPE(Geom_BezierCurve))) {
269 C = Handle(Geom_Curve)::DownCast(Caux->Copy());
270 return Standard_True;
272 return Standard_False;
277 Standard_Real TolPar = Tol *.1;
279 if(C->IsPeriodic()) {
280 Standard_Real p = C->Period();
281 Standard_Real d = Abs(l - f);
282 if(Abs(d - p) <= TolPar && l <= p) {}
284 C = new Geom_TrimmedCurve(C, f, l);
287 C = new Geom_TrimmedCurve(C, f, l);
289 //modif WOK++ portage hp (fbi du 14/03/97)
291 // gp_Trsf trsf = L.Transformation();
293 // C = GeomConvert::CurveToBSplineCurve(C,Convert_QuasiAngular);
295 C = GeomConvert::CurveToBSplineCurve(C);
297 Standard_Real fnew = C->FirstParameter(), lnew = C->LastParameter(), UTol;
299 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C) ;
301 if(!BC->IsPeriodic()) {
302 BC->Resolution(Tol, UTol) ;
303 if(Abs(f - fnew) > UTol || Abs(l - lnew) > UTol) {
304 TColStd_Array1OfReal knots(1,BC->NbKnots()) ;
306 BSplCLib::Reparametrize(f, l, knots) ;
307 BC->SetKnots(knots) ;
311 if(!myMap.Contains(Caux)) {
314 return Standard_True ;
317 //=======================================================================
318 //function : NewPoint
320 //=======================================================================
322 Standard_Boolean BRepTools_NurbsConvertModification::NewPoint
323 //(const TopoDS_Vertex& V,
324 (const TopoDS_Vertex& ,
327 // Standard_Real& Tol)
330 return Standard_False;
334 //=======================================================================
335 //function : NewCurve2d
337 //=======================================================================
339 Standard_Boolean BRepTools_NurbsConvertModification::NewCurve2d
340 (const TopoDS_Edge& E,
341 const TopoDS_Face& F,
342 const TopoDS_Edge& newE,
343 const TopoDS_Face& newF,
344 Handle(Geom2d_Curve)& Curve2d,
348 Tol = BRep_Tool::Tolerance(E);
349 Standard_Real f2d,l2d;
350 Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E,F,f2d,l2d);
351 Standard_Real f3d,l3d;
353 Handle(Geom_Curve) C3d = BRep_Tool::Curve(E, Loc, f3d,l3d);
354 Standard_Boolean isConvert2d = ((!C3d.IsNull() && !C3d->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) &&
355 !C3d->IsKind(STANDARD_TYPE(Geom_BezierCurve))) ||
358 if(BRep_Tool::Degenerated(E)) {
360 if(!C2d->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)))
362 Handle(Geom2d_TrimmedCurve) aTrimC = new Geom2d_TrimmedCurve(C2d,f2d,l2d);
365 Curve2d = Geom2dConvert::CurveToBSplineCurve(C2d);
366 return Standard_True;
368 if(!BRepTools::IsReallyClosed(E,F)) {
369 Handle(Standard_Type) TheTypeC2d = C2d->DynamicType();
371 if(TheTypeC2d == STANDARD_TYPE(Geom2d_TrimmedCurve)) {
372 Handle(Geom2d_TrimmedCurve) TC = Handle(Geom2d_TrimmedCurve)::DownCast(C2d);
373 C2d = TC->BasisCurve();
376 Standard_Real fc = C2d->FirstParameter(), lc = C2d->LastParameter();
378 if(!C2d->IsPeriodic()) {
379 if(fc - f2d > Precision::PConfusion()) f2d = fc;
380 if(l2d - lc > Precision::PConfusion()) l2d = lc;
383 C2d = new Geom2d_TrimmedCurve(C2d, f2d, l2d);
385 Geom2dAdaptor_Curve G2dAC(C2d, f2d, l2d);
386 Handle(Geom2dAdaptor_HCurve) G2dAHC = new Geom2dAdaptor_HCurve(G2dAC);
389 Handle(Geom_Curve) C3d = BRep_Tool::Curve(E, Loc, f3d,l3d);
391 C3d = BRep_Tool::Curve(newE, f3d, l3d);
394 C3d = BRep_Tool::Curve(E,f3d,l3d);
396 GeomAdaptor_Curve G3dAC(C3d, f3d, l3d);
397 Handle(GeomAdaptor_HCurve) G3dAHC = new GeomAdaptor_HCurve(G3dAC);
399 Standard_Real Uinf, Usup, Vinf, Vsup, u = 0, v = 0;
400 Handle(Geom_Surface) S = BRep_Tool::Surface(F);
401 Handle(Standard_Type) myT = S->DynamicType();
402 if(myT != STANDARD_TYPE(Geom_Plane)) {
404 Handle(Standard_Type) st = C2d->DynamicType();
405 if ((st == STANDARD_TYPE(Geom2d_BSplineCurve)) ||
406 (st == STANDARD_TYPE(Geom2d_BezierCurve))) {
408 Curve2d = Handle(Geom2d_Curve)::DownCast(C2d->Copy());
409 return Standard_True;
411 return Standard_False;
415 S = BRep_Tool::Surface(newF);
418 S->Bounds(Uinf, Usup, Vinf, Vsup);
419 //Uinf -= 1e-9; Usup += 1e-9; Vinf -= 1e-9; Vsup += 1e-9;
420 u = (Usup - Uinf)*0.1;
421 v = (Vsup - Vinf)*0.1;
422 if(S->IsUPeriodic()) {
423 Standard_Real uperiod = S->UPeriod();
424 if(uperiod < (Usup+2*u-Uinf)) {
425 if(uperiod <= (Usup-Uinf)) {
429 u = (uperiod-(Usup-Uinf))*0.5;
433 if(S->IsVPeriodic()) {
434 Standard_Real vperiod = S->VPeriod();
435 if(vperiod < (Vsup+2*v-Vinf)) {
436 if(vperiod <= (Vsup-Vinf)) {
440 v = (vperiod-(Vsup-Vinf))*0.5;
446 S = BRep_Tool::Surface(F);// Si S est un plan, pas de changement de parametrisation
447 GeomAdaptor_Surface GAS(S);
448 Handle(GeomAdaptor_HSurface) GAHS = new GeomAdaptor_HSurface(GAS);
449 ProjLib_ComputeApprox ProjOnCurve(G3dAHC,GAHS,Tol);
450 if(ProjOnCurve.BSpline().IsNull()) {
451 Curve2d = Geom2dConvert::CurveToBSplineCurve(ProjOnCurve.Bezier());
452 return Standard_True;
454 Curve2d = ProjOnCurve.BSpline();
455 return Standard_True;
457 GeomAdaptor_Surface GAS(S,Uinf-u,Usup+u,Vinf-v,Vsup+v);
459 Handle(GeomAdaptor_HSurface) GAHS = new GeomAdaptor_HSurface(GAS);
461 ProjLib_ComputeApproxOnPolarSurface ProjOnCurve(G2dAHC,G3dAHC,GAHS,Tol);
463 if(ProjOnCurve.IsDone()) {
464 Curve2d = ProjOnCurve.BSpline();
466 return Standard_True;
469 Curve2d = Geom2dConvert::CurveToBSplineCurve(C2d);
470 return Standard_True;
474 TopTools_ListIteratorOfListOfShape itled;
475 TColStd_ListIteratorOfListOfTransient itlcu;
477 for (itled.Initialize(myled), itlcu.Initialize(mylcu);
478 itled.More(); // itlcu.More()
479 itled.Next(),itlcu.Next()) {
480 if (itled.Value().IsSame(E)) {
485 if (!itled.More()) { // on stocke l`edge et la curve2d
486 Handle(Geom2d_Curve) C2dBis;
487 Standard_Real f3d,l3d,f2dBis,l2dBis;
488 C2d = new Geom2d_TrimmedCurve(C2d, f2d, l2d);
489 Geom2dAdaptor_Curve G2dAC(C2d, f2d, l2d);
490 Handle(Geom2dAdaptor_HCurve) G2dAHC = new Geom2dAdaptor_HCurve(G2dAC);
491 TopoDS_Edge ERevers = E;
493 // TopoDS_Edge ERevers = TopoDS::Edge(E.Reversed());
494 C2dBis = BRep_Tool::CurveOnSurface(ERevers,F,f2dBis,l2dBis);
495 Handle(Standard_Type) TheTypeC2dBis = C2dBis->DynamicType();
496 C2dBis = new Geom2d_TrimmedCurve(C2dBis,f2dBis, l2dBis);
497 Geom2dAdaptor_Curve G2dACBis(C2dBis, f2dBis, l2dBis);
498 Handle(Geom2dAdaptor_HCurve) G2dAHCBis = new Geom2dAdaptor_HCurve(G2dACBis);
501 Handle(Geom_Curve) C3d = BRep_Tool::Curve(E, f3d,l3d);
504 Curve2d = Handle(Geom2d_Curve)::DownCast(C2d->Copy());
505 return Standard_True;
508 return Standard_False;
511 C3d = BRep_Tool::Curve(newE, f3d,l3d);
513 GeomAdaptor_Curve G3dAC(C3d, f3d, l3d);
514 Handle(GeomAdaptor_HCurve) G3dAHC = new GeomAdaptor_HCurve(G3dAC);
516 Handle(Geom_Surface) S = BRep_Tool::Surface(F);
517 Handle(Standard_Type) myT = S->DynamicType();
519 mylcu.Append(C2dBis);
520 Handle(Standard_Type) st = C2d->DynamicType();
521 if ((st == STANDARD_TYPE(Geom2d_BSplineCurve)) ||
522 (st == STANDARD_TYPE(Geom2d_BezierCurve))) {
524 Curve2d = Handle(Geom2d_Curve)::DownCast(C2d->Copy());
525 return Standard_True;
527 return Standard_False;
531 S = BRep_Tool::Surface(newF);// S est une BSplineSurface : pas besoin de la trimmed
533 Standard_Real Uinf, Usup, Vinf, Vsup, u = 0, v = 0;
534 S->Bounds(Uinf, Usup, Vinf, Vsup);
535 //Uinf -= 1e-9; Usup += 1e-9; Vinf -= 1e-9; Vsup += 1e-9;
536 u = (Usup - Uinf)*0.1;
537 v = (Vsup - Vinf)*0.1;
538 if(S->IsUPeriodic()) {
539 Standard_Real uperiod = S->UPeriod();
540 if(uperiod < (Usup+2*u-Uinf))
541 if(uperiod <= (Usup-Uinf))
544 u = (uperiod-(Usup-Uinf))*0.5;
546 if(S->IsVPeriodic()) {
547 Standard_Real vperiod = S->VPeriod();
548 if(vperiod < (Vsup+2*v-Vinf))
549 if(vperiod <= (Vsup-Vinf))
552 v = (vperiod-(Vsup-Vinf))*0.5;
554 GeomAdaptor_Surface GAS(S, Uinf-u,Usup+u,Vinf-v,Vsup+v);
555 Handle(GeomAdaptor_HSurface) GAHS = new GeomAdaptor_HSurface(GAS);
558 ProjLib_ComputeApproxOnPolarSurface
559 ProjOnCurve(G2dAHC,G2dAHCBis,G3dAHC,GAHS,Tol);
561 if(ProjOnCurve.IsDone()) {
562 Curve2d = ProjOnCurve.BSpline();
563 mylcu.Append(ProjOnCurve.Curve2d());
564 return Standard_True;
567 Curve2d = Geom2dConvert::CurveToBSplineCurve(C2d);
568 mylcu.Append(C2dBis);
569 return Standard_True;
572 else { // on est au 2ieme tour
573 C2d = Handle(Geom2d_Curve)::DownCast(itlcu.Value());
574 Handle(Standard_Type) st = C2d->DynamicType();
575 if (!(st == STANDARD_TYPE(Geom2d_BSplineCurve)) &&
576 !(st == STANDARD_TYPE(Geom2d_BezierCurve))) {
577 return Standard_False;
579 Curve2d = Geom2dConvert::CurveToBSplineCurve(C2d);
580 return Standard_True;
584 return Standard_True;
587 //=======================================================================
588 //function : NewParameter
590 //=======================================================================
592 Standard_Boolean BRepTools_NurbsConvertModification::NewParameter
593 (const TopoDS_Vertex& V,
594 const TopoDS_Edge& E,
598 if(BRep_Tool::Degenerated(E))
599 return Standard_False;
600 Standard_Real f, l, param = BRep_Tool::Parameter(V,E);
603 Handle(Geom_Curve) gc = BRep_Tool::Curve(E, L, f, l);
604 if(!myMap.Contains(gc))
605 return Standard_False;
607 Handle(Geom_BSplineCurve) gcc =
608 Handle(Geom_BSplineCurve)::DownCast(myMap.FindFromKey(gc));
610 gcc = Handle(Geom_BSplineCurve)::DownCast(gcc->Transformed(L.Transformation()));
612 GeomAdaptor_Curve ac(gcc);
613 gp_Pnt pnt = BRep_Tool::Pnt(V);
615 Extrema_LocateExtPC proj(pnt, ac, param, f, l, Tol);
617 Standard_Real Dist2Min = proj.SquareDistance();
618 if (Dist2Min < Tol*Tol) {
619 // Standard_Real U_final_point,V_final_point;
620 P = proj.Point().Parameter();
621 return Standard_True;
624 return Standard_False;
627 //=======================================================================
628 //function : Continuity
630 //=======================================================================
632 GeomAbs_Shape BRepTools_NurbsConvertModification::Continuity
633 (const TopoDS_Edge& E,
634 const TopoDS_Face& F1,
635 const TopoDS_Face& F2,
640 return BRep_Tool::Continuity(E,F1,F2);