1 // Created on: 1998-03-04
2 // Created by: Roman BORISOV
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
18 #include <Adaptor2d_HCurve2d.hxx>
19 #include <Adaptor3d_CurveOnSurface.hxx>
20 #include <Adaptor3d_CurveOnSurfacePtr.hxx>
21 #include <Adaptor3d_HCurve.hxx>
22 #include <Adaptor3d_HCurveOnSurface.hxx>
23 #include <Adaptor3d_HSurface.hxx>
25 #include <Geom_UndefinedValue.hxx>
26 #include <GeomAdaptor_HSurface.hxx>
27 #include <GeomAdaptor_Surface.hxx>
28 #include <GeomFill_Darboux.hxx>
29 #include <GeomFill_TrihedronLaw.hxx>
30 #include <gp_Pnt2d.hxx>
32 #include <gp_Vec2d.hxx>
33 #include <Standard_ConstructionError.hxx>
34 #include <Standard_OutOfRange.hxx>
35 #include <Standard_Type.hxx>
36 #include <TColgp_Array2OfVec.hxx>
38 IMPLEMENT_STANDARD_RTTIEXT(GeomFill_Darboux,GeomFill_TrihedronLaw)
40 //=======================================================================
42 //purpose : computes (F/|F|)'
43 //=======================================================================
44 static gp_Vec FDeriv(const gp_Vec& F, const gp_Vec& DF)
46 Standard_Real Norma = F.Magnitude();
47 gp_Vec Result = (DF - F*(F*DF)/(Norma*Norma))/Norma;
51 //=======================================================================
53 //purpose : computes (F/|F|)''
54 //=======================================================================
55 static gp_Vec DDeriv(const gp_Vec& F, const gp_Vec& DF, const gp_Vec& D2F)
57 Standard_Real Norma = F.Magnitude();
58 gp_Vec Result = (D2F - 2*DF*(F*DF)/(Norma*Norma))/Norma -
59 F*((DF.SquareMagnitude() + F*D2F
60 - 3*(F*DF)*(F*DF)/(Norma*Norma))/(Norma*Norma*Norma));
64 //=======================================================================
66 //purpose : computes Normal to Surface
67 //=======================================================================
68 static void NormalD0(const Standard_Real U, const Standard_Real V, const Handle(Adaptor3d_HSurface)& Surf, gp_Dir& Normal, Standard_Integer& OrderU, Standard_Integer& OrderV)
70 // gp_Vec D1U,D1V,D2U,D2V,DUV;
72 GeomAbs_Shape Cont = (Surf->Surface().UContinuity() < Surf->Surface().VContinuity()) ?
73 (Surf->Surface().UContinuity()) : (Surf->Surface().VContinuity());
76 if (Cont == GeomAbs_C0) throw Geom_UndefinedValue();
79 Surf->D1(U, V, P, D1U, D1V);
80 Standard_Real MagTol=0.000000001;
81 CSLib_NormalStatus NStatus;
82 CSLib::Normal(D1U, D1V, MagTol, NStatus, Normal);
84 if (NStatus != CSLib_Defined) {
85 if (Cont==GeomAbs_C0 ||
87 throw Geom_UndefinedValue();
89 Standard_Integer MaxOrder=3;
90 TColgp_Array2OfVec DerNUV(0,MaxOrder,0,MaxOrder);
91 TColgp_Array2OfVec DerSurf(0,MaxOrder+1,0,MaxOrder+1);
92 Standard_Integer i,j;//OrderU,OrderV;
93 Standard_Real Umin,Umax,Vmin,Vmax;
94 Umin = Surf->Surface().FirstUParameter();
95 Umax = Surf->Surface().LastUParameter();
96 Vmin = Surf->Surface().FirstVParameter();
97 Vmax = Surf->Surface().LastVParameter();
98 for(i=1;i<=MaxOrder+1;i++){
99 DerSurf.SetValue(i,0,Surf->DN(U,V,i,0));
102 for(i=0;i<=MaxOrder+1;i++)
103 for(j=1;j<=MaxOrder+1;j++){
104 DerSurf.SetValue(i,j,Surf->DN(U,V,i,j));
107 for(i=0;i<=MaxOrder;i++)
108 for(j=0;j<=MaxOrder;j++){
109 DerNUV.SetValue(i,j,CSLib::DNNUV(i,j,DerSurf));
112 CSLib::Normal(MaxOrder,DerNUV,MagTol,U,V,Umin,Umax,Vmin,Vmax,
113 NStatus,Normal,OrderU,OrderV);
115 if (NStatus != CSLib_Defined) {
117 std::cout << U << ", " << V<< std::endl;
118 for(i=0;i<=MaxOrder;i++)
119 for(j=0;j<=MaxOrder;j++){
120 std::cout <<"("<<i <<"," << j << ") = "<< DerSurf(i,j).X() <<","
121 << DerSurf(i,j).Y() <<"," << DerSurf(i,j).Z() << std::endl;
124 throw Geom_UndefinedValue();
129 //=======================================================================
130 //function : NormalD1
131 //purpose : computes Normal to Surface and its first derivative
132 //=======================================================================
133 void NormalD1 (const Standard_Real U, const Standard_Real V,
134 const Handle(Adaptor3d_HSurface)& Surf, gp_Dir& Normal,
135 gp_Vec& D1UNormal, gp_Vec& D1VNormal)
138 GeomAbs_Shape Cont = (Surf->Surface().UContinuity() < Surf->Surface().VContinuity()) ?
139 (Surf->Surface().UContinuity()) : (Surf->Surface().VContinuity());
140 if (Cont==GeomAbs_C0 ||
142 throw Geom_UndefinedDerivative();
145 gp_Vec d2u, d2v, d2uv;
147 Surf->D2(U, V, P, D1UNormal, D1VNormal, d2u, d2v, d2uv);
148 Standard_Real MagTol=0.000000001;
149 CSLib_NormalStatus NStatus;
150 CSLib::Normal (D1UNormal, D1VNormal, MagTol, NStatus, Normal);
151 Standard_Integer MaxOrder;
152 if (NStatus == CSLib_Defined)
156 Standard_Integer OrderU,OrderV;
157 TColgp_Array2OfVec DerNUV(0,MaxOrder+1,0,MaxOrder+1);
158 TColgp_Array2OfVec DerSurf(0,MaxOrder+2,0,MaxOrder+2);
159 Standard_Integer i,j;
160 Standard_Real Umin,Umax,Vmin,Vmax;
161 Umin = Surf->Surface().FirstUParameter();
162 Umax = Surf->Surface().LastUParameter();
163 Vmin = Surf->Surface().FirstVParameter();
164 Vmax = Surf->Surface().LastVParameter();
166 DerSurf.SetValue(1, 0, D1UNormal);
167 DerSurf.SetValue(0, 1, D1VNormal);
168 DerSurf.SetValue(1, 1, d2uv);
169 DerSurf.SetValue(2, 0, d2u);
170 DerSurf.SetValue(0, 2, d2v);
171 for(i=0;i<=MaxOrder+1;i++)
172 for(j=i; j<=MaxOrder+2; j++ )
174 DerSurf.SetValue(i,j,Surf->DN(U,V,i,j));
175 if (i!=j) DerSurf.SetValue(j,i,Surf->DN(U,V,j,i));
178 for(i=0;i<=MaxOrder+1;i++)
179 for(j=0;j<=MaxOrder+1;j++){
180 DerNUV.SetValue(i,j,CSLib::DNNUV(i,j,DerSurf));
183 CSLib::Normal(MaxOrder,DerNUV,MagTol,U,V,Umin,Umax,Vmin,Vmax,
184 NStatus,Normal,OrderU,OrderV);
185 if (NStatus != CSLib_Defined) throw Geom_UndefinedValue();
187 D1UNormal = CSLib::DNNormal(1,0,DerNUV,OrderU,OrderV);
188 D1VNormal = CSLib::DNNormal(0,1,DerNUV,OrderU,OrderV);
191 //=======================================================================
192 //function : NormalD2
193 //purpose : computes Normal to Surface and its first and second derivatives
194 //=======================================================================
195 void NormalD2 (const Standard_Real U, const Standard_Real V,
196 const Handle(Adaptor3d_HSurface)& Surf, gp_Dir& Normal,
197 gp_Vec& D1UNormal, gp_Vec& D1VNormal,
198 gp_Vec& D2UNormal, gp_Vec& D2VNormal, gp_Vec& D2UVNormal)
201 GeomAbs_Shape Cont = (Surf->Surface().UContinuity() < Surf->Surface().VContinuity()) ?
202 (Surf->Surface().UContinuity()) : (Surf->Surface().VContinuity());
203 if (Cont == GeomAbs_C0 || Continuity == GeomAbs_C1 ||
204 Cont == GeomAbs_C2) { throw Geom_UndefinedDerivative(); }
206 gp_Vec d3u, d3uuv, d3uvv, d3v;
208 Surf->D3(U, V, P, D1UNormal, D1VNormal,
209 D2UNormal, D2VNormal, D2UVNormal,
210 d3u,d3v, d3uuv, d3uvv);
211 Standard_Real MagTol=0.000000001;
212 CSLib_NormalStatus NStatus;
213 CSLib::Normal (D1UNormal, D1VNormal, MagTol, NStatus, Normal);
214 Standard_Integer MaxOrder;
215 if (NStatus == CSLib_Defined)
219 Standard_Integer OrderU,OrderV;
220 TColgp_Array2OfVec DerNUV(0,MaxOrder+2,0,MaxOrder+2);
221 TColgp_Array2OfVec DerSurf(0,MaxOrder+3,0,MaxOrder+3);
222 Standard_Integer i,j;
224 Standard_Real Umin,Umax,Vmin,Vmax;
225 Umin = Surf->Surface().FirstUParameter();
226 Umax = Surf->Surface().LastUParameter();
227 Vmin = Surf->Surface().FirstVParameter();
228 Vmax = Surf->Surface().LastVParameter();
230 DerSurf.SetValue(1, 0, D1UNormal);
231 DerSurf.SetValue(0, 1, D1VNormal);
232 DerSurf.SetValue(1, 1, D2UVNormal);
233 DerSurf.SetValue(2, 0, D2UNormal);
234 DerSurf.SetValue(0, 2, D2VNormal);
235 DerSurf.SetValue(3, 0, d3u);
236 DerSurf.SetValue(2, 1, d3uuv);
237 DerSurf.SetValue(1, 2, d3uvv);
238 DerSurf.SetValue(0, 3, d3v);
239 for(i=0;i<=MaxOrder+2;i++)
240 for(j=i; j<=MaxOrder+3; j++ )
242 DerSurf.SetValue(i,j,Surf->DN(U,V,i,j));
243 if (i!=j) DerSurf.SetValue(j,i,Surf->DN(U,V,j,i));
246 for(i=0;i<=MaxOrder+2;i++)
247 for(j=0;j<=MaxOrder+2;j++){
248 DerNUV.SetValue(i,j,CSLib::DNNUV(i,j,DerSurf));
251 CSLib::Normal(MaxOrder,DerNUV,MagTol,U,V,Umin,Umax,Vmin,Vmax,
252 NStatus,Normal,OrderU,OrderV);
253 if (NStatus != CSLib_Defined) throw Geom_UndefinedValue();
255 D1UNormal = CSLib::DNNormal(1,0,DerNUV,OrderU,OrderV);
256 D1VNormal = CSLib::DNNormal(0,1,DerNUV,OrderU,OrderV);
257 D2UNormal = CSLib::DNNormal(2,0,DerNUV,OrderU,OrderV);
258 D2VNormal = CSLib::DNNormal(0,2,DerNUV,OrderU,OrderV);
259 D2UVNormal = CSLib::DNNormal(1,1,DerNUV,OrderU,OrderV);
262 GeomFill_Darboux::GeomFill_Darboux()
266 Handle(GeomFill_TrihedronLaw) GeomFill_Darboux::Copy() const
268 Handle(GeomFill_Darboux) copy = new (GeomFill_Darboux)();
269 if (!myCurve.IsNull()) copy->SetCurve(myCurve);
273 Standard_Boolean GeomFill_Darboux::D0(const Standard_Real Param,gp_Vec& Tangent,gp_Vec& Normal,gp_Vec& BiNormal)
279 Handle(Adaptor2d_HCurve2d) myCurve2d = Adaptor3d_CurveOnSurfacePtr(&(myTrimmed->Curve()))->GetCurve();
280 Handle(Adaptor3d_HSurface) mySupport = Adaptor3d_CurveOnSurfacePtr(&(myTrimmed->Curve()))->GetSurface();
281 Standard_Integer OrderU, OrderV;
282 myCurve2d->D1(Param, C2d, D2d);
284 // Normal = dS_du.Crossed(dS_dv).Normalized();
286 NormalD0(C2d.X(), C2d.Y(), mySupport, NormalDir, OrderU, OrderV);
287 BiNormal.SetXYZ(NormalDir.XYZ());
289 mySupport->D1(C2d.X(), C2d.Y(), S, dS_du, dS_dv);
290 // if(D2d.Magnitude() <= Precision::Confusion())
291 // DoTSingular(Param, Order);
293 Tangent = D2d.X()*dS_du + D2d.Y()*dS_dv;
300 return Standard_True;
303 Standard_Boolean GeomFill_Darboux::D1(const Standard_Real Param,
304 gp_Vec& Tangent,gp_Vec& DTangent,
305 gp_Vec& Normal,gp_Vec& DNormal,
306 gp_Vec& BiNormal,gp_Vec& DBiNormal)
311 gp_Vec dS_du, dS_dv, d2S_du, d2S_dv, d2S_duv, F, DF;
312 Handle(Adaptor2d_HCurve2d) myCurve2d = Adaptor3d_CurveOnSurfacePtr(&(myTrimmed->Curve()))->GetCurve();
313 Handle(Adaptor3d_HSurface) mySupport = Adaptor3d_CurveOnSurfacePtr(&(myTrimmed->Curve()))->GetSurface();
314 // Standard_Integer Order;
315 myCurve2d->D2(Param, C2d, D2d, D2_2d);
316 mySupport->D2(C2d.X(), C2d.Y(), S, dS_du, dS_dv,
317 d2S_du, d2S_dv, d2S_duv);
318 // if(D2d.Magnitude() <= Precision::Confusion())
319 // DoTSingular(Param, Order);
321 F = D2d.X()*dS_du + D2d.Y()*dS_dv;
322 Tangent = F.Normalized();
323 DF = D2_2d.X()*dS_du + D2_2d.Y()*dS_dv +
324 d2S_du*D2d.X()*D2d.X() + 2*d2S_duv*D2d.X()*D2d.Y() +
325 d2S_dv*D2d.Y()*D2d.Y();
327 DTangent = FDeriv(F, DF);
330 gp_Vec D1UNormal, D1VNormal;
331 NormalD1(C2d.X(), C2d.Y(), mySupport, NormalDir, D1UNormal, D1VNormal);
332 BiNormal.SetXYZ(NormalDir.XYZ());
333 DBiNormal = D1UNormal*D2d.X() + D1VNormal*D2d.Y();
337 DNormal = BiNormal.Crossed(DTangent) + DBiNormal.Crossed(Tangent);
339 return Standard_True;
342 Standard_Boolean GeomFill_Darboux::D2(const Standard_Real Param,
343 gp_Vec& Tangent,gp_Vec& DTangent,gp_Vec& D2Tangent,
344 gp_Vec& Normal,gp_Vec& DNormal,gp_Vec& D2Normal,
345 gp_Vec& BiNormal,gp_Vec& DBiNormal,gp_Vec& D2BiNormal)
348 gp_Vec2d D2d, D2_2d, D3_2d;
350 gp_Vec dS_du, dS_dv, d2S_du, d2S_dv, d2S_duv,
351 d3S_du, d3S_dv, d3S_duuv, d3S_duvv, F, DF, D2F;
352 Handle(Adaptor2d_HCurve2d) myCurve2d = Adaptor3d_CurveOnSurfacePtr(&(myTrimmed->Curve()))->GetCurve();
353 Handle(Adaptor3d_HSurface) mySupport = Adaptor3d_CurveOnSurfacePtr(&(myTrimmed->Curve()))->GetSurface();
354 // Standard_Integer Order;
355 myCurve2d->D3(Param, C2d, D2d, D2_2d, D3_2d);
356 mySupport->D3(C2d.X(), C2d.Y(), S, dS_du, dS_dv,
357 d2S_du, d2S_dv, d2S_duv, d3S_du, d3S_dv, d3S_duuv, d3S_duvv);
358 // if(D2d.Magnitude() <= Precision::Confusion())
359 // DoTSingular(Param, Order);
361 F = D2d.X()*dS_du + D2d.Y()*dS_dv;
362 Tangent = F.Normalized();
363 DF = D2_2d.X()*dS_du + D2_2d.Y()*dS_dv +
364 d2S_du*D2d.X()*D2d.X() + 2*d2S_duv*D2d.X()*D2d.Y() +
365 d2S_dv*D2d.Y()*D2d.Y();
367 D2F = D3_2d.X()*dS_du + D3_2d.Y()*dS_dv +
368 D2_2d.X()*(D2d.X()*d2S_du + D2d.Y()*d2S_duv) +
369 D2_2d.Y()*(D2d.X()*d2S_duv + D2d.Y()*d2S_dv) +
370 D2d.X()*D2d.X()*(D2d.X()*d3S_du + D2d.Y()*d3S_duuv) +
371 D2d.Y()*D2d.Y()*(D2d.X()*d3S_duvv + D2d.Y()*d3S_dv) +
373 D2d.X()*D2_2d.X()*d2S_du + D2d.Y()*D2_2d.Y()*d2S_dv +
374 D2d.X()*D2d.Y()*(D2d.X()*d3S_duuv + D2d.Y()*d3S_duvv) +
375 d2S_duv*(D2_2d.X()*D2d.Y() + D2d.X()*D2_2d.Y())
378 DTangent = FDeriv(F, DF);
379 D2Tangent = DDeriv(F, DF, D2F);
382 gp_Vec D1UNormal, D1VNormal, D2UNormal, D2VNormal, D2UVNormal;
383 NormalD2(C2d.X(), C2d.Y(), mySupport, NormalDir, D1UNormal, D1VNormal,
384 D2UNormal, D2VNormal, D2UVNormal);
385 BiNormal.SetXYZ(NormalDir.XYZ());
386 DBiNormal = D1UNormal*D2d.X() + D1VNormal*D2d.Y();
387 D2BiNormal = D1UNormal*D2_2d.X() + D1VNormal*D2_2d.Y() + D2UNormal*D2d.X()*D2d.X() +
388 2*D2UVNormal*D2d.X()*D2d.Y() + D2VNormal*D2d.Y()*D2d.Y();
392 DNormal = BiNormal.Crossed(DTangent) + DBiNormal.Crossed(Tangent);
393 D2Normal = BiNormal.Crossed(D2Tangent) + 2*DBiNormal.Crossed(DTangent) + D2BiNormal.Crossed(Tangent);
395 return Standard_True;
398 Standard_Integer GeomFill_Darboux::NbIntervals(const GeomAbs_Shape S) const
400 return myCurve->NbIntervals(S);
403 void GeomFill_Darboux::Intervals(TColStd_Array1OfReal& T,const GeomAbs_Shape S) const
405 myCurve->Intervals(T, S);
408 void GeomFill_Darboux::GetAverageLaw(gp_Vec& ATangent,gp_Vec& ANormal,gp_Vec& ABiNormal)
410 Standard_Integer Num = 20; //order of digitalization
412 ATangent = gp_Vec(0, 0, 0);
413 ANormal = gp_Vec(0, 0, 0);
414 ABiNormal = gp_Vec(0, 0, 0);
415 Standard_Real Step = (myTrimmed->LastParameter() -
416 myTrimmed->FirstParameter()) / Num;
418 for (Standard_Integer i = 0; i <= Num; i++) {
419 Param = myTrimmed->FirstParameter() + i*Step;
420 if (Param > myTrimmed->LastParameter()) Param = myTrimmed->LastParameter();
429 ATangent.Normalize();
430 ABiNormal = ATangent.Crossed(ANormal).Normalized();
431 ANormal = ABiNormal.Crossed(ATangent);
434 Standard_Boolean GeomFill_Darboux::IsConstant() const
436 return (myCurve->GetType() == GeomAbs_Line);
439 Standard_Boolean GeomFill_Darboux::IsOnlyBy3dCurve() const
441 return Standard_False;