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b311480e | 1 | // Created by: Bruno DUMORTIER |
2 | // Copyright (c) 1995-1999 Matra Datavision | |
973c2be1 | 3 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
b311480e | 15 | |
7fd59977 | 16 | #include <ProjLib_ComputeApproxOnPolarSurface.hxx> |
368cdde6 | 17 | #include <AppCont_Function.hxx> |
7fd59977 | 18 | #include <ElSLib.hxx> |
19 | #include <ElCLib.hxx> | |
20 | #include <BSplCLib.hxx> | |
21 | #include <PLib.hxx> | |
22 | #include <Standard_NoSuchObject.hxx> | |
23 | #include <Geom_UndefinedDerivative.hxx> | |
24 | #include <gp_Trsf.hxx> | |
25 | #include <Precision.hxx> | |
26 | #include <Approx_FitAndDivide2d.hxx> | |
27 | #include <math.hxx> | |
28 | #include <AppParCurves_MultiCurve.hxx> | |
29 | #include <Geom_Surface.hxx> | |
30 | #include <Geom2d_BSplineCurve.hxx> | |
31 | #include <Geom2d_BezierCurve.hxx> | |
32 | #include <Geom2d_Line.hxx> | |
33 | #include <Geom2d_Circle.hxx> | |
34 | #include <Geom2d_Ellipse.hxx> | |
35 | #include <Geom2d_Hyperbola.hxx> | |
36 | #include <Geom2d_Parabola.hxx> | |
37 | #include <Geom2d_TrimmedCurve.hxx> | |
38 | #include <Geom_BSplineSurface.hxx> | |
39 | #include <Geom_BezierSurface.hxx> | |
40 | #include <Geom_BSplineCurve.hxx> | |
41 | #include <Geom_BezierCurve.hxx> | |
42 | #include <Geom_TrimmedCurve.hxx> | |
43 | ||
44 | #include <TColgp_Array1OfPnt2d.hxx> | |
45 | #include <TColgp_Array2OfPnt2d.hxx> | |
46 | #include <TColgp_Array1OfPnt.hxx> | |
47 | #include <TColgp_SequenceOfPnt2d.hxx> | |
48 | #include <TColStd_Array1OfReal.hxx> | |
49 | #include <TColStd_Array1OfInteger.hxx> | |
50 | #include <TColStd_SequenceOfReal.hxx> | |
51 | #include <TColStd_ListOfTransient.hxx> | |
52 | ||
53 | #include <GeomAbs_SurfaceType.hxx> | |
54 | #include <GeomAbs_CurveType.hxx> | |
7fd59977 | 55 | #include <Adaptor3d_Surface.hxx> |
56 | #include <Adaptor3d_Curve.hxx> | |
57 | #include <Adaptor3d_HSurface.hxx> | |
58 | #include <Adaptor3d_HCurve.hxx> | |
59 | #include <Adaptor2d_HCurve2d.hxx> | |
60 | #include <Geom2dAdaptor_Curve.hxx> | |
61 | #include <Geom2dAdaptor_HCurve.hxx> | |
62 | #include <GeomAdaptor_HCurve.hxx> | |
63 | #include <GeomAdaptor.hxx> | |
64 | #include <GeomAdaptor_Surface.hxx> | |
65 | #include <TColgp_SequenceOfPnt.hxx> | |
66 | ||
67 | #include <gp_Pnt.hxx> | |
68 | #include <gp_Pnt2d.hxx> | |
69 | #include <gp_Vec2d.hxx> | |
70 | #include <Extrema_GenLocateExtPS.hxx> | |
71 | #include <Extrema_ExtPS.hxx> | |
72 | #include <GCPnts_QuasiUniformAbscissa.hxx> | |
73 | #include <Standard_DomainError.hxx> | |
74 | //#include <GeomLib_IsIso.hxx> | |
75 | //#include <GeomLib_CheckSameParameter.hxx> | |
76 | ||
0797d9d3 | 77 | #ifdef OCCT_DEBUG |
7fd59977 | 78 | #ifdef DRAW |
79 | #include <DrawTrSurf.hxx> | |
80 | #endif | |
81 | //static Standard_Integer compteur = 0; | |
82 | #endif | |
83 | ||
84 | //======================================================================= | |
85 | //function : Value | |
86 | //purpose : (OCC217 - apo)- Compute Point2d that project on polar surface(<Surf>) 3D<Curve> | |
87 | // <InitCurve2d> use for calculate start 2D point. | |
88 | //======================================================================= | |
89 | ||
90 | static gp_Pnt2d Function_Value(const Standard_Real U, | |
91 | const Handle(Adaptor3d_HSurface)& Surf, | |
92 | const Handle(Adaptor3d_HCurve)& Curve, | |
93 | const Handle(Adaptor2d_HCurve2d)& InitCurve2d, | |
94 | //OCC217 | |
95 | const Standard_Real DistTol3d, const Standard_Real tolU, const Standard_Real tolV) | |
96 | //const Standard_Real Tolerance) | |
97 | { | |
98 | //OCC217 | |
99 | //Standard_Real Tol3d = 100*Tolerance; | |
100 | ||
101 | gp_Pnt2d p2d = InitCurve2d->Value(U) ; | |
102 | gp_Pnt p = Curve->Value(U); | |
103 | // Curve->D0(U,p) ; | |
104 | Standard_Real Uinf, Usup, Vinf, Vsup; | |
105 | Uinf = Surf->Surface().FirstUParameter(); | |
106 | Usup = Surf->Surface().LastUParameter(); | |
107 | Vinf = Surf->Surface().FirstVParameter(); | |
108 | Vsup = Surf->Surface().LastVParameter(); | |
109 | Standard_Integer decalU = 0, decalV = 0; | |
110 | Standard_Real U0 = p2d.X(), V0 = p2d.Y(); | |
111 | ||
112 | GeomAbs_SurfaceType Type = Surf->GetType(); | |
113 | if((Type != GeomAbs_BSplineSurface) && | |
114 | (Type != GeomAbs_BezierSurface) && | |
115 | (Type != GeomAbs_OffsetSurface) ) { | |
1d47d8d0 | 116 | Standard_Real S = 0., T = 0.; |
7fd59977 | 117 | switch (Type) { |
118 | // case GeomAbs_Plane: | |
119 | // { | |
120 | // gp_Pln Plane = Surf->Plane(); | |
121 | // ElSLib::Parameters( Plane, p, S, T); | |
122 | // break; | |
123 | // } | |
124 | case GeomAbs_Cylinder: | |
125 | { | |
126 | gp_Cylinder Cylinder = Surf->Cylinder(); | |
127 | ElSLib::Parameters( Cylinder, p, S, T); | |
c6541a0c D |
128 | if(U0 < Uinf) decalU = -int((Uinf - U0)/(2*M_PI))-1; |
129 | if(U0 > Usup) decalU = int((U0 - Usup)/(2*M_PI))+1; | |
130 | S += decalU*2*M_PI; | |
7fd59977 | 131 | break; |
132 | } | |
133 | case GeomAbs_Cone: | |
134 | { | |
135 | gp_Cone Cone = Surf->Cone(); | |
136 | ElSLib::Parameters( Cone, p, S, T); | |
c6541a0c D |
137 | if(U0 < Uinf) decalU = -int((Uinf - U0)/(2*M_PI))-1; |
138 | if(U0 > Usup) decalU = int((U0 - Usup)/(2*M_PI))+1; | |
139 | S += decalU*2*M_PI; | |
7fd59977 | 140 | break; |
141 | } | |
142 | case GeomAbs_Sphere: | |
143 | { | |
144 | gp_Sphere Sphere = Surf->Sphere(); | |
145 | ElSLib::Parameters( Sphere, p, S, T); | |
c6541a0c D |
146 | if(U0 < Uinf) decalU = -int((Uinf - U0)/(2*M_PI))-1; |
147 | if(U0 > Usup) decalU = int((U0 - Usup)/(2*M_PI))+1; | |
148 | S += decalU*2*M_PI; | |
149 | if(V0 < Vinf) decalV = -int((Vinf - V0)/(2*M_PI))-1; | |
150 | if(V0 > (Vsup+(Vsup-Vinf))) decalV = int((V0 - Vsup+(Vsup-Vinf))/(2*M_PI))+1; | |
151 | T += decalV*2*M_PI; | |
152 | if(0.4*M_PI < Abs(U0 - S) && Abs(U0 - S) < 1.6*M_PI) { | |
153 | T = M_PI - T; | |
7fd59977 | 154 | if(U0 < S) |
c6541a0c | 155 | S -= M_PI; |
7fd59977 | 156 | else |
c6541a0c | 157 | S += M_PI; |
7fd59977 | 158 | } |
159 | break; | |
160 | } | |
161 | case GeomAbs_Torus: | |
162 | { | |
163 | gp_Torus Torus = Surf->Torus(); | |
164 | ElSLib::Parameters( Torus, p, S, T); | |
c6541a0c D |
165 | if(U0 < Uinf) decalU = -int((Uinf - U0)/(2*M_PI))-1; |
166 | if(U0 > Usup) decalU = int((U0 - Usup)/(2*M_PI))+1; | |
167 | if(V0 < Vinf) decalV = -int((Vinf - V0)/(2*M_PI))-1; | |
168 | if(V0 > Vsup) decalV = int((V0 - Vsup)/(2*M_PI))+1; | |
169 | S += decalU*2*M_PI; T += decalV*2*M_PI; | |
7fd59977 | 170 | break; |
171 | } | |
172 | default: | |
173 | Standard_NoSuchObject::Raise("ProjLib_ComputeApproxOnPolarSurface::Value"); | |
174 | } | |
175 | return gp_Pnt2d(S, T); | |
176 | } | |
177 | ||
178 | ////////////////// | |
179 | Standard_Real Dist2Min = RealLast(); | |
180 | //OCC217 | |
181 | //Standard_Real tolU,tolV ; | |
182 | //tolU = Tolerance; | |
183 | //tolV = Tolerance; | |
184 | ||
185 | Standard_Real uperiod =0, vperiod = 0, u, v; | |
186 | // U0 and V0 are the points within the initialized period | |
187 | // (periode with u and v), | |
188 | // U1 and V1 are the points for construction of tops | |
189 | ||
190 | if(Surf->IsUPeriodic() || Surf->IsUClosed()) { | |
191 | uperiod = Surf->LastUParameter() - Surf->FirstUParameter(); | |
192 | } | |
193 | if(Surf->IsVPeriodic() || Surf->IsVClosed()) { | |
194 | vperiod = Surf->LastVParameter() - Surf->FirstVParameter(); | |
195 | } | |
eafb234b | 196 | if(U0 < Uinf) { |
7fd59977 | 197 | if(!uperiod) |
198 | U0 = Uinf; | |
199 | else { | |
200 | decalU = int((Uinf - U0)/uperiod)+1; | |
201 | U0 += decalU*uperiod; | |
202 | } | |
eafb234b | 203 | } |
204 | if(U0 > Usup) { | |
7fd59977 | 205 | if(!uperiod) |
206 | U0 = Usup; | |
207 | else { | |
208 | decalU = -(int((U0 - Usup)/uperiod)+1); | |
209 | U0 += decalU*uperiod; | |
210 | } | |
eafb234b | 211 | } |
212 | if(V0 < Vinf) { | |
7fd59977 | 213 | if(!vperiod) |
214 | V0 = Vinf; | |
215 | else { | |
216 | decalV = int((Vinf - V0)/vperiod)+1; | |
217 | V0 += decalV*vperiod; | |
218 | } | |
eafb234b | 219 | } |
220 | if(V0 > Vsup) { | |
7fd59977 | 221 | if(!vperiod) |
222 | V0 = Vsup; | |
223 | else { | |
224 | decalV = -int((V0 - Vsup)/vperiod)-1; | |
225 | V0 += decalV*vperiod; | |
226 | } | |
eafb234b | 227 | } |
7fd59977 | 228 | |
229 | // The surface around U0 is reduced | |
230 | Standard_Real uLittle = (Usup - Uinf)/10, vLittle = (Vsup - Vinf)/10; | |
231 | Standard_Real uInfLi = 0, vInfLi = 0,uSupLi = 0, vSupLi = 0; | |
232 | if((U0 - Uinf) > uLittle) uInfLi = U0 - uLittle; else uInfLi = Uinf; | |
233 | if((V0 - Vinf) > vLittle) vInfLi = V0 - vLittle; else vInfLi = Vinf; | |
234 | if((Usup - U0) > uLittle) uSupLi = U0 + uLittle; else uSupLi = Usup; | |
235 | if((Vsup - V0) > vLittle) vSupLi = V0 + vLittle; else vSupLi = Vsup; | |
236 | ||
237 | // const Adaptor3d_Surface GAS = Surf->Surface(); | |
238 | ||
239 | GeomAdaptor_Surface SurfLittle; | |
240 | if (Type == GeomAbs_BSplineSurface) { | |
241 | Handle(Geom_Surface) GBSS(Surf->Surface().BSpline()); | |
242 | SurfLittle.Load(GBSS, uInfLi, uSupLi, vInfLi, vSupLi); | |
243 | } | |
244 | else if (Type == GeomAbs_BezierSurface) { | |
245 | Handle(Geom_Surface) GS(Surf->Surface().Bezier()); | |
246 | SurfLittle.Load(GS, uInfLi, uSupLi, vInfLi, vSupLi); | |
247 | } | |
248 | else if (Type == GeomAbs_OffsetSurface) { | |
249 | Handle(Geom_Surface) GS = GeomAdaptor::MakeSurface(Surf->Surface()); | |
250 | SurfLittle.Load(GS, uInfLi, uSupLi, vInfLi, vSupLi); | |
251 | } | |
252 | else { | |
253 | Standard_NoSuchObject::Raise(""); | |
254 | } | |
255 | ||
256 | Extrema_GenLocateExtPS locext(p, SurfLittle, U0, V0, tolU, tolV); | |
257 | if (locext.IsDone()) { | |
258 | Dist2Min = locext.SquareDistance(); | |
259 | if (Dist2Min < DistTol3d * DistTol3d) { | |
260 | (locext.Point()).Parameter(u, v); | |
261 | gp_Pnt2d pnt(u - decalU*uperiod,v - decalV*vperiod); | |
262 | return pnt; | |
263 | } | |
264 | } | |
265 | ||
266 | Extrema_ExtPS ext(p, SurfLittle, tolU, tolV) ; | |
267 | if (ext.IsDone() && ext.NbExt()>=1 ) { | |
268 | Dist2Min = ext.SquareDistance(1); | |
269 | Standard_Integer GoodValue = 1; | |
270 | for ( Standard_Integer i = 2 ; i <= ext.NbExt() ; i++ ) | |
271 | if( Dist2Min > ext.SquareDistance(i)) { | |
272 | Dist2Min = ext.SquareDistance(i); | |
273 | GoodValue = i; | |
274 | } | |
275 | if (Dist2Min < DistTol3d * DistTol3d) { | |
276 | (ext.Point(GoodValue)).Parameter(u,v); | |
277 | gp_Pnt2d pnt(u - decalU*uperiod,v - decalV*vperiod); | |
278 | return pnt; | |
279 | } | |
280 | } | |
281 | ||
282 | return p2d; | |
283 | } | |
284 | ||
285 | ||
286 | //======================================================================= | |
287 | //function : ProjLib_PolarFunction | |
288 | //purpose : (OCC217 - apo)- This class produce interface to call "gp_Pnt2d Function_Value(...)" | |
289 | //======================================================================= | |
290 | ||
368cdde6 | 291 | class ProjLib_PolarFunction : public AppCont_Function |
7fd59977 | 292 | { |
293 | Handle(Adaptor3d_HCurve) myCurve; | |
368cdde6 | 294 | Handle(Adaptor2d_HCurve2d) myInitialCurve2d; |
295 | Handle(Adaptor3d_HSurface) mySurface; | |
296 | Standard_Real myTolU, myTolV; | |
297 | Standard_Real myDistTol3d; | |
298 | ||
7fd59977 | 299 | public : |
368cdde6 | 300 | |
7fd59977 | 301 | ProjLib_PolarFunction(const Handle(Adaptor3d_HCurve) & C, |
368cdde6 | 302 | const Handle(Adaptor3d_HSurface)& Surf, |
303 | const Handle(Adaptor2d_HCurve2d)& InitialCurve2d, | |
304 | const Standard_Real Tol3d) | |
305 | : myCurve(C), | |
7fd59977 | 306 | myInitialCurve2d(InitialCurve2d), |
307 | mySurface(Surf), | |
7fd59977 | 308 | myTolU(Surf->UResolution(Tol3d)), |
309 | myTolV(Surf->VResolution(Tol3d)), | |
368cdde6 | 310 | myDistTol3d(100.0*Tol3d) |
311 | { | |
312 | myNbPnt = 0; | |
313 | myNbPnt2d = 1; | |
314 | } | |
315 | ||
7fd59977 | 316 | ~ProjLib_PolarFunction() {} |
368cdde6 | 317 | |
7fd59977 | 318 | Standard_Real FirstParameter() const |
368cdde6 | 319 | { |
320 | return myCurve->FirstParameter(); | |
321 | } | |
322 | ||
7fd59977 | 323 | Standard_Real LastParameter() const |
368cdde6 | 324 | { |
325 | return myCurve->LastParameter(); | |
7fd59977 | 326 | } |
368cdde6 | 327 | |
fa0f5a55 | 328 | gp_Pnt2d Value(const Standard_Real t) const |
329 | { | |
330 | return Function_Value | |
331 | (t,mySurface,myCurve,myInitialCurve2d,myDistTol3d,myTolU,myTolV); | |
332 | } | |
333 | ||
368cdde6 | 334 | Standard_Boolean Value(const Standard_Real theT, |
335 | NCollection_Array1<gp_Pnt2d>& thePnt2d, | |
336 | NCollection_Array1<gp_Pnt>& /*thePnt*/) const | |
337 | { | |
338 | thePnt2d(1) = Function_Value(theT, mySurface, myCurve, myInitialCurve2d, myDistTol3d, myTolU, myTolV); | |
339 | return Standard_True; | |
340 | } | |
341 | ||
342 | Standard_Boolean D1(const Standard_Real /*theT*/, | |
343 | NCollection_Array1<gp_Vec2d>& /*theVec2d*/, | |
344 | NCollection_Array1<gp_Vec>& /*theVec*/) const | |
7fd59977 | 345 | {return Standard_False;} |
346 | }; | |
347 | ||
348 | //======================================================================= | |
349 | //function : ProjLib_ComputeApproxOnPolarSurface | |
350 | //purpose : | |
351 | //======================================================================= | |
352 | ||
cbff1e55 | 353 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface() |
354 | : myProjIsDone(Standard_False), | |
355 | myTolerance (-1.0) | |
356 | { | |
357 | } | |
7fd59977 | 358 | |
359 | ||
360 | //======================================================================= | |
361 | //function : ProjLib_ComputeApproxOnPolarSurface | |
362 | //purpose : | |
363 | //======================================================================= | |
364 | ||
365 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface | |
cbff1e55 | 366 | (const Handle(Adaptor2d_HCurve2d)& theInitialCurve2d, |
367 | const Handle(Adaptor3d_HCurve)& theCurve, | |
368 | const Handle(Adaptor3d_HSurface)& theSurface, | |
369 | const Standard_Real theTolerance3D) | |
370 | : myProjIsDone(Standard_False), | |
371 | myTolerance (theTolerance3D) | |
7fd59977 | 372 | { |
cbff1e55 | 373 | myBSpline = Perform(theInitialCurve2d, theCurve, theSurface); |
7fd59977 | 374 | } |
375 | //======================================================================= | |
376 | //function : ProjLib_ComputeApproxOnPolarSurface | |
377 | //purpose : Process the case of sewing | |
378 | //======================================================================= | |
379 | ||
380 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface | |
cbff1e55 | 381 | (const Handle(Adaptor2d_HCurve2d)& theInitialCurve2d, |
382 | const Handle(Adaptor2d_HCurve2d)& theInitialCurve2dBis, | |
383 | const Handle(Adaptor3d_HCurve)& theCurve, | |
384 | const Handle(Adaptor3d_HSurface)& theSurface, | |
385 | const Standard_Real theTolerance3D) | |
386 | : myProjIsDone(Standard_False), | |
387 | myTolerance (theTolerance3D) | |
388 | { | |
389 | // InitialCurve2d and InitialCurve2dBis are two pcurves of the sewing | |
390 | Handle(Geom2d_BSplineCurve) bsc = | |
391 | Perform(theInitialCurve2d, theCurve, theSurface); | |
392 | ||
7fd59977 | 393 | if(myProjIsDone) { |
394 | gp_Pnt2d P2dproj, P2d, P2dBis; | |
395 | P2dproj = bsc->StartPoint(); | |
cbff1e55 | 396 | P2d = theInitialCurve2d->Value(theInitialCurve2d->FirstParameter()); |
397 | P2dBis = theInitialCurve2dBis->Value(theInitialCurve2dBis->FirstParameter()); | |
7fd59977 | 398 | |
399 | Standard_Real Dist, DistBis; | |
400 | Dist = P2dproj.Distance(P2d); | |
401 | DistBis = P2dproj.Distance(P2dBis); | |
402 | if( Dist < DistBis) { | |
403 | // myBSpline2d is the pcurve that is found. It is translated to obtain myCurve2d | |
404 | myBSpline = bsc; | |
405 | Handle(Geom2d_Geometry) GG = myBSpline->Translated(P2d, P2dBis); | |
406 | my2ndCurve = Handle(Geom2d_Curve)::DownCast(GG); | |
407 | } | |
408 | else { | |
409 | my2ndCurve = bsc; | |
410 | Handle(Geom2d_Geometry) GG = my2ndCurve->Translated(P2dBis, P2d); | |
411 | myBSpline = Handle(Geom2d_BSplineCurve)::DownCast(GG); | |
412 | } | |
413 | } | |
414 | } | |
415 | ||
416 | //======================================================================= | |
417 | //function : ProjLib_ComputeApproxOnPolarSurface | |
418 | //purpose : case without curve of initialization | |
419 | //======================================================================= | |
420 | ||
421 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface | |
cbff1e55 | 422 | (const Handle(Adaptor3d_HCurve)& theCurve, |
423 | const Handle(Adaptor3d_HSurface)& theSurface, | |
424 | const Standard_Real theTolerance3D) | |
425 | : myProjIsDone(Standard_False), | |
426 | myTolerance (theTolerance3D) | |
7fd59977 | 427 | { |
cbff1e55 | 428 | const Handle(Adaptor2d_HCurve2d) anInitCurve2d; |
429 | myBSpline = Perform(anInitCurve2d, theCurve, theSurface); | |
7fd59977 | 430 | } |
431 | ||
cbff1e55 | 432 | //======================================================================= |
433 | //function : Concat | |
434 | //purpose : | |
435 | //======================================================================= | |
436 | ||
7fd59977 | 437 | static Handle(Geom2d_BSplineCurve) Concat(Handle(Geom2d_BSplineCurve) C1, |
460f4f69 | 438 | Handle(Geom2d_BSplineCurve) C2, |
439 | Standard_Real theUJump, | |
440 | Standard_Real theVJump) | |
7fd59977 | 441 | { |
442 | Standard_Integer deg, deg1, deg2; | |
443 | deg1 = C1->Degree(); | |
444 | deg2 = C2->Degree(); | |
445 | ||
446 | if ( deg1 < deg2) { | |
447 | C1->IncreaseDegree(deg2); | |
448 | deg = deg2; | |
449 | } | |
450 | else if ( deg2 < deg1) { | |
451 | C2->IncreaseDegree(deg1); | |
452 | deg = deg1; | |
453 | } | |
454 | else deg = deg1; | |
455 | ||
456 | Standard_Integer np1,np2,nk1,nk2,np,nk; | |
457 | np1 = C1->NbPoles(); | |
458 | nk1 = C1->NbKnots(); | |
459 | np2 = C2->NbPoles(); | |
460 | nk2 = C2->NbKnots(); | |
461 | nk = nk1 + nk2 -1; | |
462 | np = np1 + np2 -1; | |
463 | ||
464 | TColStd_Array1OfReal K1(1,nk1); C1->Knots(K1); | |
465 | TColStd_Array1OfInteger M1(1,nk1); C1->Multiplicities(M1); | |
466 | TColgp_Array1OfPnt2d P1(1,np1); C1->Poles(P1); | |
467 | TColStd_Array1OfReal K2(1,nk2); C2->Knots(K2); | |
468 | TColStd_Array1OfInteger M2(1,nk2); C2->Multiplicities(M2); | |
469 | TColgp_Array1OfPnt2d P2(1,np2); C2->Poles(P2); | |
470 | ||
471 | // Compute the new BSplineCurve | |
472 | TColStd_Array1OfReal K(1,nk); | |
473 | TColStd_Array1OfInteger M(1,nk); | |
474 | TColgp_Array1OfPnt2d P(1,np); | |
475 | ||
476 | Standard_Integer i, count = 0; | |
477 | // Set Knots and Mults | |
478 | for ( i = 1; i <= nk1; i++) { | |
479 | count++; | |
480 | K(count) = K1(i); | |
481 | M(count) = M1(i); | |
482 | } | |
483 | M(count) = deg; | |
484 | for ( i = 2; i <= nk2; i++) { | |
485 | count++; | |
486 | K(count) = K2(i); | |
487 | M(count) = M2(i); | |
488 | } | |
489 | // Set the Poles | |
490 | count = 0; | |
491 | for (i = 1; i <= np1; i++) { | |
492 | count++; | |
493 | P(count) = P1(i); | |
494 | } | |
495 | for (i = 2; i <= np2; i++) { | |
496 | count++; | |
460f4f69 | 497 | P(count).SetX(P2(i).X() + theUJump); |
498 | P(count).SetY(P2(i).Y() + theVJump); | |
7fd59977 | 499 | } |
500 | ||
501 | Handle(Geom2d_BSplineCurve) BS = | |
502 | new Geom2d_BSplineCurve(P,K,M,deg); | |
503 | return BS; | |
504 | } | |
505 | ||
506 | ||
507 | //======================================================================= | |
508 | //function : Perform | |
509 | //purpose : | |
510 | //======================================================================= | |
511 | Handle(Geom2d_BSplineCurve) ProjLib_ComputeApproxOnPolarSurface::Perform | |
512 | (const Handle(Adaptor2d_HCurve2d)& InitialCurve2d, | |
513 | const Handle(Adaptor3d_HCurve)& Curve, | |
514 | const Handle(Adaptor3d_HSurface)& S) | |
515 | { | |
516 | //OCC217 | |
517 | Standard_Real Tol3d = myTolerance; | |
518 | Standard_Real ParamTol = Precision::PApproximation(); | |
519 | ||
520 | Handle(Adaptor2d_HCurve2d) AHC2d = InitialCurve2d; | |
521 | Handle(Adaptor3d_HCurve) AHC = Curve; | |
522 | ||
523 | // if the curve 3d is a BSpline with degree C0, it is cut into sections with degree C1 | |
524 | // -> bug cts18237 | |
525 | GeomAbs_CurveType typeCurve = Curve->GetType(); | |
526 | if(typeCurve == GeomAbs_BSplineCurve) { | |
527 | TColStd_ListOfTransient LOfBSpline2d; | |
528 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
529 | Standard_Integer nbInter = Curve->NbIntervals(GeomAbs_C1); | |
530 | if(nbInter > 1) { | |
531 | Standard_Integer i, j; | |
532 | Handle(Geom_TrimmedCurve) GTC; | |
533 | Handle(Geom2d_TrimmedCurve) G2dTC; | |
534 | TColStd_Array1OfReal Inter(1,nbInter+1); | |
535 | Curve->Intervals(Inter,GeomAbs_C1); | |
536 | Standard_Real firstinter = Inter.Value(1), secondinter = Inter.Value(2); | |
537 | // initialization 3d | |
538 | GTC = new Geom_TrimmedCurve(BSC, firstinter, secondinter); | |
539 | AHC = new GeomAdaptor_HCurve(GTC); | |
540 | ||
541 | // if there is an initialization curve: | |
542 | // - either this is a BSpline C0, with discontinuity at the same parameters of nodes | |
543 | // and the sections C1 are taken | |
544 | // - or this is a curve C1 and the sections of intrest are taken otherwise the curve is created. | |
545 | ||
546 | // initialization 2d | |
547 | Standard_Integer nbInter2d; | |
548 | Standard_Boolean C2dIsToCompute; | |
549 | C2dIsToCompute = InitialCurve2d.IsNull(); | |
550 | Handle(Geom2d_BSplineCurve) BSC2d; | |
551 | Handle(Geom2d_Curve) G2dC; | |
552 | ||
553 | if(!C2dIsToCompute) { | |
554 | nbInter2d = InitialCurve2d->NbIntervals(GeomAbs_C1); | |
555 | TColStd_Array1OfReal Inter2d(1,nbInter2d+1); | |
556 | InitialCurve2d->Intervals(Inter2d,GeomAbs_C1); | |
557 | j = 1; | |
558 | for(i = 1,j = 1;i <= nbInter;i++) | |
559 | if(Abs(Inter.Value(i) - Inter2d.Value(j)) < ParamTol) { //OCC217 | |
560 | //if(Abs(Inter.Value(i) - Inter2d.Value(j)) < myTolerance) { | |
561 | if (j > nbInter2d) break; | |
562 | j++; | |
563 | } | |
564 | if(j != (nbInter2d+1)) { | |
565 | C2dIsToCompute = Standard_True; | |
566 | } | |
567 | } | |
568 | ||
569 | if(C2dIsToCompute) { | |
570 | AHC2d = BuildInitialCurve2d(AHC, S); | |
571 | } | |
572 | else { | |
573 | typeCurve = InitialCurve2d->GetType(); | |
574 | switch (typeCurve) { | |
575 | case GeomAbs_Line: { | |
576 | G2dC = new Geom2d_Line(InitialCurve2d->Line()); | |
577 | break; | |
578 | } | |
579 | case GeomAbs_Circle: { | |
580 | G2dC = new Geom2d_Circle(InitialCurve2d->Circle()); | |
581 | break; | |
582 | } | |
583 | case GeomAbs_Ellipse: { | |
584 | G2dC = new Geom2d_Ellipse(InitialCurve2d->Ellipse()); | |
585 | break; | |
586 | } | |
587 | case GeomAbs_Hyperbola: { | |
588 | G2dC = new Geom2d_Hyperbola(InitialCurve2d->Hyperbola()); | |
589 | break; | |
590 | } | |
591 | case GeomAbs_Parabola: { | |
592 | G2dC = new Geom2d_Parabola(InitialCurve2d->Parabola()); | |
593 | break; | |
594 | } | |
595 | case GeomAbs_BezierCurve: { | |
596 | G2dC = InitialCurve2d->Bezier(); | |
597 | break; | |
598 | } | |
599 | case GeomAbs_BSplineCurve: { | |
600 | G2dC = InitialCurve2d->BSpline(); | |
601 | break; | |
602 | } | |
603 | case GeomAbs_OtherCurve: | |
604 | default: | |
605 | break; | |
606 | } | |
607 | gp_Pnt2d fp2d = G2dC->Value(firstinter), lp2d = G2dC->Value(secondinter); | |
608 | gp_Pnt fps, lps, fpc, lpc; | |
609 | S->D0(fp2d.X(), fp2d.Y(), fps); | |
610 | S->D0(lp2d.X(), lp2d.Y(), lps); | |
611 | Curve->D0(firstinter, fpc); | |
612 | Curve->D0(secondinter, lpc); | |
613 | //OCC217 | |
614 | if((fps.IsEqual(fpc, Tol3d)) && | |
615 | (lps.IsEqual(lpc, Tol3d))) { | |
616 | //if((fps.IsEqual(fpc, myTolerance)) && | |
617 | // (lps.IsEqual(lpc, myTolerance))) { | |
618 | G2dTC = new Geom2d_TrimmedCurve(G2dC, firstinter, secondinter); | |
619 | Geom2dAdaptor_Curve G2dAC(G2dTC); | |
620 | AHC2d = new Geom2dAdaptor_HCurve(G2dAC); | |
621 | myProjIsDone = Standard_True; | |
622 | } | |
623 | else { | |
624 | AHC2d = BuildInitialCurve2d(AHC, S); | |
625 | C2dIsToCompute = Standard_True; | |
626 | } | |
627 | } | |
628 | ||
629 | if(myProjIsDone) { | |
630 | BSC2d = ProjectUsingInitialCurve2d(AHC, S, AHC2d); | |
631 | if(BSC2d.IsNull()) return Handle(Geom2d_BSplineCurve)(); //IFV | |
632 | LOfBSpline2d.Append(BSC2d); | |
633 | } | |
634 | else { | |
635 | return Handle(Geom2d_BSplineCurve)(); | |
636 | } | |
637 | ||
638 | ||
639 | ||
640 | Standard_Real iinter, ip1inter; | |
641 | Standard_Integer nbK2d, deg; | |
642 | nbK2d = BSC2d->NbKnots(); deg = BSC2d->Degree(); | |
643 | ||
644 | for(i = 2;i <= nbInter;i++) { | |
645 | iinter = Inter.Value(i); | |
646 | ip1inter = Inter.Value(i+1); | |
647 | // general case 3d | |
648 | GTC->SetTrim(iinter, ip1inter); | |
649 | AHC = new GeomAdaptor_HCurve(GTC); | |
650 | ||
651 | // general case 2d | |
652 | if(C2dIsToCompute) { | |
653 | AHC2d = BuildInitialCurve2d(AHC, S); | |
654 | } | |
655 | else { | |
656 | gp_Pnt2d fp2d = G2dC->Value(iinter), lp2d = G2dC->Value(ip1inter); | |
657 | gp_Pnt fps, lps, fpc, lpc; | |
658 | S->D0(fp2d.X(), fp2d.Y(), fps); | |
659 | S->D0(lp2d.X(), lp2d.Y(), lps); | |
660 | Curve->D0(iinter, fpc); | |
661 | Curve->D0(ip1inter, lpc); | |
662 | //OCC217 | |
663 | if((fps.IsEqual(fpc, Tol3d)) && | |
664 | (lps.IsEqual(lpc, Tol3d))) { | |
665 | //if((fps.IsEqual(fpc, myTolerance)) && | |
666 | // (lps.IsEqual(lpc, myTolerance))) { | |
667 | G2dTC->SetTrim(iinter, ip1inter); | |
668 | Geom2dAdaptor_Curve G2dAC(G2dTC); | |
669 | AHC2d = new Geom2dAdaptor_HCurve(G2dAC); | |
670 | myProjIsDone = Standard_True; | |
671 | } | |
672 | else { | |
673 | AHC2d = BuildInitialCurve2d(AHC, S); | |
674 | } | |
675 | } | |
676 | if(myProjIsDone) { | |
677 | BSC2d = ProjectUsingInitialCurve2d(AHC, S, AHC2d); | |
678 | if(BSC2d.IsNull()) { | |
679 | return Handle(Geom2d_BSplineCurve)(); | |
680 | } | |
681 | LOfBSpline2d.Append(BSC2d); | |
682 | nbK2d += BSC2d->NbKnots() - 1; | |
683 | deg = Max(deg, BSC2d->Degree()); | |
684 | } | |
685 | else { | |
686 | return Handle(Geom2d_BSplineCurve)(); | |
687 | } | |
688 | } | |
689 | ||
690 | Standard_Integer NbC = LOfBSpline2d.Extent(); | |
691 | Handle(Geom2d_BSplineCurve) CurBS; | |
692 | CurBS = Handle(Geom2d_BSplineCurve)::DownCast(LOfBSpline2d.First()); | |
693 | LOfBSpline2d.RemoveFirst(); | |
460f4f69 | 694 | for (Standard_Integer ii = 2; ii <= NbC; ii++) |
695 | { | |
696 | Handle(Geom2d_BSplineCurve) BS = | |
697 | Handle(Geom2d_BSplineCurve)::DownCast(LOfBSpline2d.First()); | |
698 | ||
699 | //Check for period jump in point of contact. | |
700 | gp_Pnt2d aC1End = CurBS->Pole(CurBS->NbPoles()); // End of C1. | |
701 | gp_Pnt2d aC2Beg = BS->Pole(1); // Beginning of C2. | |
702 | Standard_Real anUJump = 0.0, anVJump = 0.0; | |
703 | ||
704 | if (S->IsUPeriodic() || S->IsUClosed()) | |
705 | { | |
706 | if (Abs (aC1End.X() - aC2Beg.X()) > (S->LastUParameter() - S->FirstUParameter() ) / 2.01) | |
707 | { | |
708 | Standard_Real aMultCoeff = aC2Beg.X() < aC1End.X() ? 1.0 : -1.0; | |
709 | anUJump = (S->LastUParameter() - S->FirstUParameter() ) * aMultCoeff; | |
710 | } | |
711 | } | |
712 | ||
713 | if (S->IsVPeriodic() || S->IsVClosed()) | |
714 | { | |
715 | if (Abs (aC1End.Y() - aC2Beg.Y()) > (S->LastVParameter() - S->FirstVParameter() ) / 2.01) | |
716 | { | |
717 | Standard_Real aMultCoeff = aC2Beg.Y() < aC1End.Y() ? 1.0 : -1.0; | |
718 | anVJump = (S->LastVParameter() - S->FirstVParameter() ) * aMultCoeff; | |
719 | } | |
720 | } | |
721 | ||
722 | CurBS = Concat(CurBS,BS, anUJump, anVJump); | |
723 | LOfBSpline2d.RemoveFirst(); | |
7fd59977 | 724 | } |
725 | return CurBS; | |
726 | } | |
727 | } | |
728 | ||
729 | if(InitialCurve2d.IsNull()) { | |
730 | AHC2d = BuildInitialCurve2d(Curve, S); | |
731 | if(!myProjIsDone) | |
732 | return Handle(Geom2d_BSplineCurve)(); | |
733 | } | |
734 | return ProjectUsingInitialCurve2d(AHC, S, AHC2d); | |
735 | } | |
736 | ||
737 | //======================================================================= | |
738 | //function : ProjLib_BuildInitialCurve2d | |
739 | //purpose : | |
740 | //======================================================================= | |
741 | ||
742 | Handle(Adaptor2d_HCurve2d) | |
743 | ProjLib_ComputeApproxOnPolarSurface:: | |
744 | BuildInitialCurve2d(const Handle(Adaptor3d_HCurve)& Curve, | |
745 | const Handle(Adaptor3d_HSurface)& Surf) | |
746 | { | |
747 | // discretize the Curve with quasiuniform deflection | |
748 | // density at least NbOfPnts points | |
749 | myProjIsDone = Standard_False; | |
750 | ||
751 | //OCC217 | |
752 | Standard_Real Tol3d = myTolerance; | |
753 | Standard_Real TolU = Surf->UResolution(Tol3d), TolV = Surf->VResolution(Tol3d); | |
754 | Standard_Real DistTol3d = 100.0*Tol3d; | |
755 | ||
ee9451ab | 756 | Standard_Real uperiod = 0., vperiod = 0.; |
757 | if(Surf->IsUPeriodic() || Surf->IsUClosed()) | |
758 | uperiod = Surf->LastUParameter() - Surf->FirstUParameter(); | |
759 | ||
760 | if(Surf->IsVPeriodic() || Surf->IsVClosed()) | |
761 | vperiod = Surf->LastVParameter() - Surf->FirstVParameter(); | |
762 | ||
763 | ||
7fd59977 | 764 | // NO myTol is Tol2d !!!! |
765 | //Standard_Real TolU = myTolerance, TolV = myTolerance; | |
766 | //Standard_Real Tol3d = 100*myTolerance; // At random Balthazar. | |
767 | ||
768 | Standard_Integer NbOfPnts = 61; | |
769 | GCPnts_QuasiUniformAbscissa QUA(Curve->GetCurve(),NbOfPnts); | |
770 | TColgp_Array1OfPnt Pts(1,NbOfPnts); | |
771 | TColStd_Array1OfReal Param(1,NbOfPnts); | |
772 | Standard_Integer i, j; | |
773 | for( i = 1; i <= NbOfPnts ; i++ ) { | |
774 | Param(i) = QUA.Parameter(i); | |
775 | Pts(i) = Curve->Value(Param(i)); | |
776 | } | |
777 | ||
778 | TColgp_Array1OfPnt2d Pts2d(1,NbOfPnts); | |
779 | TColStd_Array1OfInteger Mult(1,NbOfPnts); | |
780 | Mult.Init(1); | |
781 | Mult(1) = Mult(NbOfPnts) = 2; | |
782 | ||
ee9451ab | 783 | Standard_Real Uinf, Usup, Vinf, Vsup; |
784 | Uinf = Surf->Surface().FirstUParameter(); | |
785 | Usup = Surf->Surface().LastUParameter(); | |
7fd59977 | 786 | Vinf = Surf->Surface().FirstVParameter(); |
787 | Vsup = Surf->Surface().LastVParameter(); | |
788 | GeomAbs_SurfaceType Type = Surf->GetType(); | |
789 | if((Type != GeomAbs_BSplineSurface) && (Type != GeomAbs_BezierSurface) && | |
790 | (Type != GeomAbs_OffsetSurface)) { | |
791 | Standard_Real S, T; | |
792 | // Standard_Integer usens = 0, vsens = 0; | |
793 | // to know the position relatively to the period | |
794 | switch (Type) { | |
795 | // case GeomAbs_Plane: | |
796 | // { | |
797 | // gp_Pln Plane = Surf->Plane(); | |
798 | // for ( i = 1 ; i <= NbOfPnts ; i++) { | |
799 | // ElSLib::Parameters( Plane, Pts(i), S, T); | |
800 | // Pts2d(i).SetCoord(S,T); | |
801 | // } | |
802 | // myProjIsDone = Standard_True; | |
803 | // break; | |
804 | // } | |
805 | case GeomAbs_Cylinder: | |
806 | { | |
807 | // Standard_Real Sloc, Tloc; | |
eafb234b | 808 | Standard_Real Sloc; |
809 | Standard_Integer usens = 0; | |
810 | gp_Cylinder Cylinder = Surf->Cylinder(); | |
811 | ElSLib::Parameters( Cylinder, Pts(1), S, T); | |
812 | Pts2d(1).SetCoord(S,T); | |
813 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
814 | Sloc = S; | |
815 | ElSLib::Parameters( Cylinder, Pts(i), S, T); | |
816 | if(Abs(Sloc - S) > M_PI) { | |
817 | if(Sloc > S) | |
818 | usens++; | |
819 | else | |
820 | usens--; | |
821 | } | |
822 | Pts2d(i).SetCoord(S+usens*2*M_PI,T); | |
823 | } | |
824 | myProjIsDone = Standard_True; | |
825 | break; | |
7fd59977 | 826 | } |
827 | case GeomAbs_Cone: | |
828 | { | |
829 | // Standard_Real Sloc, Tloc; | |
eafb234b | 830 | Standard_Real Sloc; |
831 | Standard_Integer usens = 0; | |
832 | gp_Cone Cone = Surf->Cone(); | |
833 | ElSLib::Parameters( Cone, Pts(1), S, T); | |
834 | Pts2d(1).SetCoord(S,T); | |
835 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
836 | Sloc = S; | |
837 | ElSLib::Parameters( Cone, Pts(i), S, T); | |
838 | if(Abs(Sloc - S) > M_PI) { | |
839 | if(Sloc > S) | |
840 | usens++; | |
841 | else | |
842 | usens--; | |
843 | } | |
844 | Pts2d(i).SetCoord(S+usens*2*M_PI,T); | |
845 | } | |
846 | myProjIsDone = Standard_True; | |
847 | break; | |
7fd59977 | 848 | } |
849 | case GeomAbs_Sphere: | |
850 | { | |
851 | Standard_Real Sloc, Tloc; | |
852 | Standard_Integer usens = 0, vsens = 0; //usens steps by half-period | |
853 | Standard_Boolean vparit = Standard_False; | |
854 | gp_Sphere Sphere = Surf->Sphere(); | |
855 | ElSLib::Parameters( Sphere, Pts(1), S, T); | |
856 | Pts2d(1).SetCoord(S,T); | |
857 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
858 | Sloc = S;Tloc = T; | |
859 | ElSLib::Parameters( Sphere, Pts(i), S, T); | |
eafb234b | 860 | if(1.6*M_PI < Abs(Sloc - S)) { |
7fd59977 | 861 | if(Sloc > S) |
862 | usens += 2; | |
863 | else | |
864 | usens -= 2; | |
eafb234b | 865 | } |
c6541a0c | 866 | if(1.6*M_PI > Abs(Sloc - S) && Abs(Sloc - S) > 0.4*M_PI) { |
7fd59977 | 867 | vparit = !vparit; |
868 | if(Sloc > S) | |
869 | usens++; | |
870 | else | |
871 | usens--; | |
872 | if(Abs(Tloc - Vsup) < (Vsup - Vinf)/5) | |
873 | vsens++; | |
874 | else | |
875 | vsens--; | |
876 | } | |
877 | if(vparit) { | |
c6541a0c | 878 | Pts2d(i).SetCoord(S+usens*M_PI,(M_PI - T)*(vsens-1)); |
7fd59977 | 879 | } |
880 | else { | |
c6541a0c | 881 | Pts2d(i).SetCoord(S+usens*M_PI,T+vsens*M_PI); |
7fd59977 | 882 | |
883 | } | |
884 | } | |
885 | myProjIsDone = Standard_True; | |
886 | break; | |
887 | } | |
888 | case GeomAbs_Torus: | |
889 | { | |
890 | Standard_Real Sloc, Tloc; | |
891 | Standard_Integer usens = 0, vsens = 0; | |
892 | gp_Torus Torus = Surf->Torus(); | |
893 | ElSLib::Parameters( Torus, Pts(1), S, T); | |
894 | Pts2d(1).SetCoord(S,T); | |
895 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
896 | Sloc = S; Tloc = T; | |
897 | ElSLib::Parameters( Torus, Pts(i), S, T); | |
eafb234b | 898 | if(Abs(Sloc - S) > M_PI) { |
7fd59977 | 899 | if(Sloc > S) |
900 | usens++; | |
901 | else | |
902 | usens--; | |
eafb234b | 903 | } |
904 | if(Abs(Tloc - T) > M_PI) { | |
7fd59977 | 905 | if(Tloc > T) |
906 | vsens++; | |
907 | else | |
908 | vsens--; | |
eafb234b | 909 | } |
c6541a0c | 910 | Pts2d(i).SetCoord(S+usens*2*M_PI,T+vsens*2*M_PI); |
7fd59977 | 911 | } |
912 | myProjIsDone = Standard_True; | |
913 | break; | |
914 | } | |
915 | default: | |
916 | Standard_NoSuchObject::Raise("ProjLib_ComputeApproxOnPolarSurface::BuildInitialCurve2d"); | |
917 | } | |
918 | } | |
919 | else { | |
7fd59977 | 920 | myProjIsDone = Standard_False; |
921 | Standard_Real Dist2Min = 1.e+200, u = 0., v = 0.; | |
922 | gp_Pnt pntproj; | |
923 | ||
924 | TColgp_SequenceOfPnt2d Sols; | |
925 | Standard_Boolean areManyZeros = Standard_False; | |
926 | ||
927 | Curve->D0(Param.Value(1), pntproj) ; | |
928 | Extrema_ExtPS aExtPS(pntproj, Surf->Surface(), TolU, TolV) ; | |
f7e3c52f | 929 | Standard_Real aMinSqDist = RealLast(); |
930 | if (aExtPS.IsDone()) | |
931 | { | |
932 | for (i = 1; i <= aExtPS.NbExt(); i++) | |
933 | { | |
934 | Standard_Real aSqDist = aExtPS.SquareDistance(i); | |
935 | if (aSqDist < aMinSqDist) | |
936 | aMinSqDist = aSqDist; | |
937 | } | |
938 | } | |
939 | if (aMinSqDist > DistTol3d * DistTol3d) //try to project with less tolerance | |
940 | { | |
941 | TolU = Min(TolU, Precision::PConfusion()); | |
942 | TolV = Min(TolV, Precision::PConfusion()); | |
943 | aExtPS.Initialize(Surf->Surface(), | |
944 | Surf->Surface().FirstUParameter(), Surf->Surface().LastUParameter(), | |
945 | Surf->Surface().FirstVParameter(), Surf->Surface().LastVParameter(), | |
946 | TolU, TolV); | |
947 | aExtPS.Perform(pntproj); | |
948 | } | |
7fd59977 | 949 | |
950 | if( aExtPS.IsDone() && aExtPS.NbExt() >= 1 ) { | |
951 | ||
952 | Standard_Integer GoodValue = 1; | |
953 | ||
954 | for ( i = 1 ; i <= aExtPS.NbExt() ; i++ ) { | |
955 | if( aExtPS.SquareDistance(i) < DistTol3d * DistTol3d ) { | |
956 | if( aExtPS.SquareDistance(i) <= 1.e-18 ) { | |
957 | aExtPS.Point(i).Parameter(u,v); | |
958 | gp_Pnt2d p2d(u,v); | |
959 | Standard_Boolean isSame = Standard_False; | |
960 | for( j = 1; j <= Sols.Length(); j++ ) { | |
961 | if( p2d.SquareDistance( Sols.Value(j) ) <= 1.e-18 ) { | |
962 | isSame = Standard_True; | |
963 | break; | |
964 | } | |
965 | } | |
966 | if( !isSame ) Sols.Append( p2d ); | |
967 | } | |
968 | if( Dist2Min > aExtPS.SquareDistance(i) ) { | |
969 | Dist2Min = aExtPS.SquareDistance(i); | |
970 | GoodValue = i; | |
971 | } | |
972 | } | |
973 | } | |
974 | ||
975 | if( Sols.Length() > 1 ) areManyZeros = Standard_True; | |
976 | ||
977 | if( Dist2Min <= DistTol3d * DistTol3d) { | |
978 | if( !areManyZeros ) { | |
979 | aExtPS.Point(GoodValue).Parameter(u,v); | |
980 | Pts2d(1).SetCoord(u,v); | |
981 | myProjIsDone = Standard_True; | |
982 | } | |
983 | else { | |
984 | Standard_Integer nbSols = Sols.Length(); | |
985 | Standard_Real Dist2Max = -1.e+200; | |
986 | for( i = 1; i <= nbSols; i++ ) { | |
987 | const gp_Pnt2d& aP1 = Sols.Value(i); | |
988 | for( j = i+1; j <= nbSols; j++ ) { | |
989 | const gp_Pnt2d& aP2 = Sols.Value(j); | |
990 | Standard_Real aDist2 = aP1.SquareDistance(aP2); | |
991 | if( aDist2 > Dist2Max ) Dist2Max = aDist2; | |
992 | } | |
993 | } | |
994 | Standard_Real aMaxT2 = Max(TolU,TolV); | |
995 | aMaxT2 *= aMaxT2; | |
996 | if( Dist2Max > aMaxT2 ) { | |
997 | Standard_Integer tPp = 0; | |
998 | for( i = 1; i <= 5; i++ ) { | |
999 | Standard_Integer nbExtOk = 0; | |
1000 | Standard_Integer indExt = 0; | |
1001 | Standard_Integer iT = 1 + (NbOfPnts - 1)/5*i; | |
1002 | Curve->D0( Param.Value(iT), pntproj ); | |
1003 | Extrema_ExtPS aTPS( pntproj, Surf->Surface(), TolU, TolV ); | |
1004 | Dist2Min = 1.e+200; | |
1005 | if( aTPS.IsDone() && aTPS.NbExt() >= 1 ) { | |
1006 | for( j = 1 ; j <= aTPS.NbExt() ; j++ ) { | |
1007 | if( aTPS.SquareDistance(j) < DistTol3d * DistTol3d ) { | |
1008 | nbExtOk++; | |
1009 | if( aTPS.SquareDistance(j) < Dist2Min ) { | |
1010 | Dist2Min = aTPS.SquareDistance(j); | |
1011 | indExt = j; | |
1012 | } | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | if( nbExtOk == 1 ) { | |
1017 | tPp = iT; | |
1018 | aTPS.Point(indExt).Parameter(u,v); | |
1019 | break; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | if( tPp != 0 ) { | |
1024 | gp_Pnt2d aPp = gp_Pnt2d(u,v); | |
1025 | gp_Pnt2d aPn; | |
1026 | j = 1; | |
1027 | Standard_Boolean isFound = Standard_False; | |
1028 | while( !isFound ) { | |
1029 | Curve->D0( Param.Value(tPp+j), pntproj ); | |
1030 | Extrema_ExtPS aTPS( pntproj, Surf->Surface(), TolU, TolV ); | |
1031 | Dist2Min = 1.e+200; | |
1032 | Standard_Integer indExt = 0; | |
1033 | if( aTPS.IsDone() && aTPS.NbExt() >= 1 ) { | |
1034 | for( i = 1 ; i <= aTPS.NbExt() ; i++ ) { | |
1035 | if( aTPS.SquareDistance(i) < DistTol3d * DistTol3d && aTPS.SquareDistance(i) < Dist2Min ) { | |
1036 | Dist2Min = aTPS.SquareDistance(i); | |
1037 | indExt = i; | |
1038 | isFound = Standard_True; | |
1039 | } | |
1040 | } | |
1041 | } | |
1042 | if( isFound ) { | |
1043 | aTPS.Point(indExt).Parameter(u,v); | |
1044 | aPn = gp_Pnt2d(u,v); | |
1045 | break; | |
1046 | } | |
1047 | j++; | |
1048 | if( (tPp+j) > NbOfPnts ) break; | |
1049 | } | |
1050 | ||
1051 | if( isFound ) { | |
1052 | gp_Vec2d atV(aPp,aPn); | |
1053 | Standard_Boolean isChosen = Standard_False; | |
1054 | for( i = 1; i <= nbSols; i++ ) { | |
1055 | const gp_Pnt2d& aP1 = Sols.Value(i); | |
1056 | gp_Vec2d asV(aP1,aPp); | |
1057 | if( asV.Dot(atV) > 0. ) { | |
1058 | isChosen = Standard_True; | |
1059 | Pts2d(1).SetCoord(aP1.X(),aP1.Y()); | |
1060 | myProjIsDone = Standard_True; | |
1061 | break; | |
1062 | } | |
1063 | } | |
1064 | if( !isChosen ) { | |
1065 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1066 | Pts2d(1).SetCoord(u,v); | |
1067 | myProjIsDone = Standard_True; | |
1068 | } | |
1069 | } | |
1070 | else { | |
1071 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1072 | Pts2d(1).SetCoord(u,v); | |
1073 | myProjIsDone = Standard_True; | |
1074 | } | |
1075 | } | |
1076 | else { | |
1077 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1078 | Pts2d(1).SetCoord(u,v); | |
1079 | myProjIsDone = Standard_True; | |
1080 | } | |
1081 | } | |
1082 | else { | |
1083 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1084 | Pts2d(1).SetCoord(u,v); | |
1085 | myProjIsDone = Standard_True; | |
1086 | } | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | // calculate the following points with GenLocate_ExtPS | |
1091 | // (and store the result and each parameter in a sequence) | |
1092 | Standard_Integer usens = 0, vsens = 0; | |
1093 | // to know the position relatively to the period | |
ee9451ab | 1094 | Standard_Real U0 = u, V0 = v, U1 = u, V1 = v; |
7fd59977 | 1095 | // U0 and V0 are the points in the initialized period |
1096 | // (period with u and v), | |
1097 | // U1 and V1 are the points for construction of poles | |
1098 | ||
7fd59977 | 1099 | for ( i = 2 ; i <= NbOfPnts ; i++) |
1100 | if(myProjIsDone) { | |
1101 | myProjIsDone = Standard_False; | |
1102 | Dist2Min = RealLast(); | |
1103 | Curve->D0(Param.Value(i), pntproj); | |
1104 | Extrema_GenLocateExtPS aLocateExtPS | |
1105 | (pntproj, Surf->Surface(), U0, V0, TolU, TolV) ; | |
1106 | ||
1107 | if (aLocateExtPS.IsDone()) | |
15173a08 | 1108 | { |
1109 | if (aLocateExtPS.SquareDistance() < DistTol3d * DistTol3d) | |
1110 | { //OCC217 | |
1111 | //if (aLocateExtPS.SquareDistance() < Tol3d * Tol3d) { | |
7fd59977 | 1112 | (aLocateExtPS.Point()).Parameter(U0,V0); |
1113 | U1 = U0 + usens*uperiod; | |
1114 | V1 = V0 + vsens*vperiod; | |
1115 | Pts2d(i).SetCoord(U1,V1); | |
1116 | myProjIsDone = Standard_True; | |
1117 | } | |
15173a08 | 1118 | else |
1119 | { | |
1120 | Extrema_ExtPS aGlobalExtr(pntproj, Surf->Surface(), TolU, TolV); | |
1121 | if (aGlobalExtr.IsDone()) | |
1122 | { | |
1123 | Standard_Real LocalMinSqDist = RealLast(); | |
1124 | Standard_Integer imin = 0; | |
1125 | for (Standard_Integer isol = 1; isol <= aGlobalExtr.NbExt(); isol++) | |
1126 | { | |
1127 | Standard_Real aSqDist = aGlobalExtr.SquareDistance(isol); | |
1128 | if (aSqDist < LocalMinSqDist) | |
1129 | { | |
1130 | LocalMinSqDist = aSqDist; | |
1131 | imin = isol; | |
1132 | } | |
1133 | } | |
1134 | if (LocalMinSqDist < DistTol3d * DistTol3d) | |
1135 | { | |
1136 | Standard_Real LocalU, LocalV; | |
1137 | aGlobalExtr.Point(imin).Parameter(LocalU, LocalV); | |
1138 | if (uperiod > 0. && Abs(U0 - LocalU) >= uperiod/2.) | |
1139 | { | |
1140 | if (LocalU > U0) | |
1141 | usens = -1; | |
1142 | else | |
1143 | usens = 1; | |
1144 | } | |
1145 | if (vperiod > 0. && Abs(V0 - LocalV) >= vperiod/2.) | |
1146 | { | |
1147 | if (LocalV > V0) | |
1148 | vsens = -1; | |
1149 | else | |
1150 | vsens = 1; | |
1151 | } | |
1152 | U0 = LocalU; V0 = LocalV; | |
1153 | U1 = U0 + usens*uperiod; | |
1154 | V1 = V0 + vsens*vperiod; | |
1155 | Pts2d(i).SetCoord(U1,V1); | |
1156 | myProjIsDone = Standard_True; | |
7a8c6a36 | 1157 | |
1158 | if((i == 2) && (!IsEqual(uperiod, 0.0) || !IsEqual(vperiod, 0.0))) | |
1159 | {//Make 1st point more precise for periodic surfaces | |
1160 | const Standard_Integer aSize = 3; | |
1161 | const gp_Pnt2d aP(Pts2d(2)); | |
1162 | Standard_Real aUpar[aSize], aVpar[aSize]; | |
1163 | Pts2d(1).Coord(aUpar[1], aVpar[1]); | |
1164 | aUpar[0] = aUpar[1] - uperiod; | |
1165 | aUpar[2] = aUpar[1] + uperiod; | |
1166 | aVpar[0] = aVpar[1] - vperiod; | |
1167 | aVpar[2] = aVpar[1] + vperiod; | |
1168 | ||
1169 | Standard_Real aSQdistMin = RealLast(); | |
1170 | Standard_Integer aBestUInd = 1, aBestVInd = 1; | |
1171 | const Standard_Integer aSizeU = IsEqual(uperiod, 0.0) ? 1 : aSize, | |
1172 | aSizeV = IsEqual(vperiod, 0.0) ? 1 : aSize; | |
1173 | for(Standard_Integer uInd = 0; uInd < aSizeU; uInd++) | |
1174 | { | |
1175 | for(Standard_Integer vInd = 0; vInd < aSizeV; vInd++) | |
1176 | { | |
1177 | Standard_Real aSQdist = aP.SquareDistance(gp_Pnt2d(aUpar[uInd], aVpar[vInd])); | |
1178 | if(aSQdist < aSQdistMin) | |
1179 | { | |
1180 | aSQdistMin = aSQdist; | |
1181 | aBestUInd = uInd; | |
1182 | aBestVInd = vInd; | |
1183 | } | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | Pts2d(1).SetCoord(aUpar[aBestUInd], aVpar[aBestVInd]); | |
1188 | }//if(i == 2) condition | |
15173a08 | 1189 | } |
1190 | } | |
1191 | } | |
1192 | } | |
7fd59977 | 1193 | if(!myProjIsDone && uperiod) { |
1194 | Standard_Real Uinf, Usup, Uaux; | |
1195 | Uinf = Surf->Surface().FirstUParameter(); | |
1196 | Usup = Surf->Surface().LastUParameter(); | |
1197 | if((Usup - U0) > (U0 - Uinf)) | |
1198 | Uaux = 2*Uinf - U0 + uperiod; | |
1199 | else | |
1200 | Uaux = 2*Usup - U0 - uperiod; | |
1201 | Extrema_GenLocateExtPS locext(pntproj, | |
1202 | Surf->Surface(), | |
1203 | Uaux, V0, TolU, TolV); | |
1204 | if (locext.IsDone()) | |
1205 | if (locext.SquareDistance() < DistTol3d * DistTol3d) { //OCC217 | |
1206 | //if (locext.SquareDistance() < Tol3d * Tol3d) { | |
1207 | (locext.Point()).Parameter(u,v); | |
1208 | if((Usup - U0) > (U0 - Uinf)) | |
1209 | usens--; | |
1210 | else | |
1211 | usens++; | |
1212 | U0 = u; V0 = v; | |
1213 | U1 = U0 + usens*uperiod; | |
1214 | V1 = V0 + vsens*vperiod; | |
1215 | Pts2d(i).SetCoord(U1,V1); | |
1216 | myProjIsDone = Standard_True; | |
1217 | } | |
1218 | } | |
1219 | if(!myProjIsDone && vperiod) { | |
1220 | Standard_Real Vinf, Vsup, Vaux; | |
1221 | Vinf = Surf->Surface().FirstVParameter(); | |
1222 | Vsup = Surf->Surface().LastVParameter(); | |
1223 | if((Vsup - V0) > (V0 - Vinf)) | |
1224 | Vaux = 2*Vinf - V0 + vperiod; | |
1225 | else | |
1226 | Vaux = 2*Vsup - V0 - vperiod; | |
1227 | Extrema_GenLocateExtPS locext(pntproj, | |
1228 | Surf->Surface(), | |
1229 | U0, Vaux, TolU, TolV) ; | |
1230 | if (locext.IsDone()) | |
1231 | if (locext.SquareDistance() < DistTol3d * DistTol3d) { //OCC217 | |
1232 | //if (locext.SquareDistance() < Tol3d * Tol3d) { | |
1233 | (locext.Point()).Parameter(u,v); | |
1234 | if((Vsup - V0) > (V0 - Vinf)) | |
1235 | vsens--; | |
1236 | else | |
1237 | vsens++; | |
1238 | U0 = u; V0 = v; | |
1239 | U1 = U0 + usens*uperiod; | |
1240 | V1 = V0 + vsens*vperiod; | |
1241 | Pts2d(i).SetCoord(U1,V1); | |
1242 | myProjIsDone = Standard_True; | |
1243 | } | |
1244 | } | |
1245 | if(!myProjIsDone && uperiod && vperiod) { | |
1246 | Standard_Real Uaux, Vaux; | |
1247 | if((Usup - U0) > (U0 - Uinf)) | |
1248 | Uaux = 2*Uinf - U0 + uperiod; | |
1249 | else | |
1250 | Uaux = 2*Usup - U0 - uperiod; | |
1251 | if((Vsup - V0) > (V0 - Vinf)) | |
1252 | Vaux = 2*Vinf - V0 + vperiod; | |
1253 | else | |
1254 | Vaux = 2*Vsup - V0 - vperiod; | |
1255 | Extrema_GenLocateExtPS locext(pntproj, | |
1256 | Surf->Surface(), | |
1257 | Uaux, Vaux, TolU, TolV); | |
1258 | if (locext.IsDone()) | |
1259 | if (locext.SquareDistance() < DistTol3d * DistTol3d) { | |
1260 | //if (locext.SquareDistance() < Tol3d * Tol3d) { | |
1261 | (locext.Point()).Parameter(u,v); | |
1262 | if((Usup - U0) > (U0 - Uinf)) | |
1263 | usens--; | |
1264 | else | |
1265 | usens++; | |
1266 | if((Vsup - V0) > (V0 - Vinf)) | |
1267 | vsens--; | |
1268 | else | |
1269 | vsens++; | |
1270 | U0 = u; V0 = v; | |
1271 | U1 = U0 + usens*uperiod; | |
1272 | V1 = V0 + vsens*vperiod; | |
1273 | Pts2d(i).SetCoord(U1,V1); | |
1274 | myProjIsDone = Standard_True; | |
1275 | } | |
1276 | } | |
1277 | if(!myProjIsDone) { | |
1278 | Extrema_ExtPS ext(pntproj, Surf->Surface(), TolU, TolV) ; | |
1279 | if (ext.IsDone()) { | |
1280 | Dist2Min = ext.SquareDistance(1); | |
1281 | Standard_Integer GoodValue = 1; | |
1282 | for ( j = 2 ; j <= ext.NbExt() ; j++ ) | |
1283 | if( Dist2Min > ext.SquareDistance(j)) { | |
1284 | Dist2Min = ext.SquareDistance(j); | |
1285 | GoodValue = j; | |
1286 | } | |
1287 | if (Dist2Min < DistTol3d * DistTol3d) { | |
1288 | //if (Dist2Min < Tol3d * Tol3d) { | |
1289 | (ext.Point(GoodValue)).Parameter(u,v); | |
eafb234b | 1290 | if(uperiod) { |
7fd59977 | 1291 | if((U0 - u) > (2*uperiod/3)) { |
1292 | usens++; | |
1293 | } | |
1294 | else | |
1295 | if((u - U0) > (2*uperiod/3)) { | |
1296 | usens--; | |
1297 | } | |
eafb234b | 1298 | } |
1299 | if(vperiod) { | |
7fd59977 | 1300 | if((V0 - v) > (vperiod/2)) { |
1301 | vsens++; | |
1302 | } | |
1303 | else | |
1304 | if((v - V0) > (vperiod/2)) { | |
1305 | vsens--; | |
1306 | } | |
eafb234b | 1307 | } |
7fd59977 | 1308 | U0 = u; V0 = v; |
1309 | U1 = U0 + usens*uperiod; | |
1310 | V1 = V0 + vsens*vperiod; | |
1311 | Pts2d(i).SetCoord(U1,V1); | |
1312 | myProjIsDone = Standard_True; | |
1313 | } | |
1314 | } | |
1315 | } | |
1316 | } | |
1317 | else break; | |
1318 | } | |
1319 | } | |
1320 | // -- Pnts2d is transformed into Geom2d_BSplineCurve, with the help of Param and Mult | |
1321 | if(myProjIsDone) { | |
1322 | myBSpline = new Geom2d_BSplineCurve(Pts2d,Param,Mult,1); | |
ee9451ab | 1323 | //jgv: put the curve into parametric range |
1324 | gp_Pnt2d MidPoint = myBSpline->Value(0.5*(myBSpline->FirstParameter() + myBSpline->LastParameter())); | |
1325 | Standard_Real TestU = MidPoint.X(), TestV = MidPoint.Y(); | |
1326 | Standard_Real sense = 0.; | |
1327 | if (uperiod) | |
1328 | { | |
1329 | if (TestU < Uinf - TolU) | |
1330 | sense = 1.; | |
1331 | else if (TestU > Usup + TolU) | |
1332 | sense = -1; | |
1333 | while (TestU < Uinf - TolU || TestU > Usup + TolU) | |
1334 | TestU += sense * uperiod; | |
1335 | } | |
1336 | if (vperiod) | |
1337 | { | |
1338 | sense = 0.; | |
1339 | if (TestV < Vinf - TolV) | |
1340 | sense = 1.; | |
1341 | else if (TestV > Vsup + TolV) | |
1342 | sense = -1.; | |
1343 | while (TestV < Vinf - TolV || TestV > Vsup + TolV) | |
1344 | TestV += sense * vperiod; | |
1345 | } | |
1346 | gp_Vec2d Offset(TestU - MidPoint.X(), TestV - MidPoint.Y()); | |
1347 | if (Abs(Offset.X()) > gp::Resolution() || | |
1348 | Abs(Offset.Y()) > gp::Resolution()) | |
1349 | myBSpline->Translate(Offset); | |
1350 | ////////////////////////////////////////// | |
7fd59977 | 1351 | Geom2dAdaptor_Curve GAC(myBSpline); |
1352 | Handle(Adaptor2d_HCurve2d) IC2d = new Geom2dAdaptor_HCurve(GAC); | |
0797d9d3 | 1353 | #ifdef OCCT_DEBUG |
7fd59977 | 1354 | // char name [100]; |
1355 | // sprintf(name,"%s_%d","build",compteur++); | |
1356 | // DrawTrSurf::Set(name,myBSpline); | |
1357 | #endif | |
1358 | return IC2d; | |
1359 | } | |
1360 | else { | |
1361 | // Modified by Sergey KHROMOV - Thu Apr 18 10:57:50 2002 Begin | |
1362 | // Standard_NoSuchObject_Raise_if(1,"ProjLib_Compu: build echec"); | |
1363 | // Modified by Sergey KHROMOV - Thu Apr 18 10:57:51 2002 End | |
1364 | return Handle(Adaptor2d_HCurve2d)(); | |
1365 | } | |
d3f26155 | 1366 | // myProjIsDone = Standard_False; |
7fd59977 | 1367 | // Modified by Sergey KHROMOV - Thu Apr 18 10:58:01 2002 Begin |
1368 | // Standard_NoSuchObject_Raise_if(1,"ProjLib_ComputeOnPS: build echec"); | |
1369 | // Modified by Sergey KHROMOV - Thu Apr 18 10:58:02 2002 End | |
7fd59977 | 1370 | } |
1371 | ||
1372 | ||
1373 | ||
1374 | ||
1375 | //======================================================================= | |
1376 | //function : ProjLib_ProjectUsingInitialCurve2d | |
1377 | //purpose : | |
1378 | //======================================================================= | |
1379 | Handle(Geom2d_BSplineCurve) | |
1380 | ProjLib_ComputeApproxOnPolarSurface:: | |
1381 | ProjectUsingInitialCurve2d(const Handle(Adaptor3d_HCurve)& Curve, | |
1382 | const Handle(Adaptor3d_HSurface)& Surf, | |
1383 | const Handle(Adaptor2d_HCurve2d)& InitCurve2d) | |
1384 | { | |
1385 | //OCC217 | |
1386 | Standard_Real Tol3d = myTolerance; | |
1387 | Standard_Real DistTol3d = 1.0*Tol3d; | |
1388 | Standard_Real TolU = Surf->UResolution(Tol3d), TolV = Surf->VResolution(Tol3d); | |
1389 | Standard_Real Tol2d = Sqrt(TolU*TolU + TolV*TolV); | |
1390 | ||
1391 | Standard_Integer i; | |
1392 | GeomAbs_SurfaceType TheTypeS = Surf->GetType(); | |
1393 | GeomAbs_CurveType TheTypeC = Curve->GetType(); | |
1394 | // Handle(Standard_Type) TheTypeS = Surf->DynamicType(); | |
1395 | // Handle(Standard_Type) TheTypeC = Curve->DynamicType(); // si on a : | |
1396 | // if(TheTypeS == STANDARD_TYPE(Geom_BSplineSurface)) { | |
1397 | if(TheTypeS == GeomAbs_Plane) { | |
1398 | Standard_Real S, T; | |
1399 | gp_Pln Plane = Surf->Plane(); | |
1400 | if(TheTypeC == GeomAbs_BSplineCurve) { | |
1401 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
1402 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1403 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1404 | ElSLib::Parameters( Plane, BSC->Pole(i), S, T); | |
1405 | Poles2d(i).SetCoord(S,T); | |
1406 | } | |
1407 | TColStd_Array1OfReal Knots(1, BSC->NbKnots()); | |
1408 | BSC->Knots(Knots); | |
1409 | TColStd_Array1OfInteger Mults(1, BSC->NbKnots()); | |
1410 | BSC->Multiplicities(Mults); | |
1411 | if(BSC->IsRational()) { | |
1412 | TColStd_Array1OfReal Weights(1, BSC->NbPoles()); | |
1413 | BSC->Weights(Weights); | |
1414 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1415 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1416 | } | |
1417 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1418 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1419 | ||
1420 | } | |
1421 | if(TheTypeC == GeomAbs_BezierCurve) { | |
1422 | Handle(Geom_BezierCurve) BC = Curve->Bezier(); | |
1423 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1424 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1425 | ElSLib::Parameters( Plane, BC->Pole(i), S, T); | |
1426 | Poles2d(i).SetCoord(S,T); | |
1427 | } | |
1428 | TColStd_Array1OfReal Knots(1, 2); | |
1429 | Knots.SetValue(1,0.0); | |
1430 | Knots.SetValue(2,1.0); | |
1431 | TColStd_Array1OfInteger Mults(1, 2); | |
1432 | Mults.Init(BC->NbPoles()); | |
1433 | if(BC->IsRational()) { | |
1434 | TColStd_Array1OfReal Weights(1, BC->NbPoles()); | |
1435 | BC->Weights(Weights); | |
1436 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1437 | BC->Degree(), BC->IsPeriodic()) ; | |
1438 | } | |
1439 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1440 | BC->Degree(), BC->IsPeriodic()) ; | |
1441 | } | |
1442 | } | |
1443 | if(TheTypeS == GeomAbs_BSplineSurface) { | |
1444 | Handle(Geom_BSplineSurface) BSS = Surf->BSpline(); | |
1445 | if((BSS->MaxDegree() == 1) && | |
1446 | (BSS->NbUPoles() == 2) && | |
1447 | (BSS->NbVPoles() == 2)) { | |
1448 | gp_Pnt p11 = BSS->Pole(1,1); | |
1449 | gp_Pnt p12 = BSS->Pole(1,2); | |
1450 | gp_Pnt p21 = BSS->Pole(2,1); | |
1451 | gp_Pnt p22 = BSS->Pole(2,2); | |
1452 | gp_Vec V1(p11,p12); | |
1453 | gp_Vec V2(p21,p22); | |
c6541a0c D |
1454 | if(V1.IsEqual(V2,Tol3d,Tol3d/(p11.Distance(p12)*180/M_PI))){ //OCC217 |
1455 | //if(V1.IsEqual(V2,myTolerance,myTolerance/(p11.Distance(p12)*180/M_PI))){ | |
7fd59977 | 1456 | // so the polar surface is plane |
1457 | // and if it is enough to projet the poles of Curve | |
1458 | Standard_Integer Dist2Min = IntegerLast(); | |
1459 | Standard_Real u,v; | |
1460 | //OCC217 | |
1461 | //Standard_Real TolU = Surf->UResolution(myTolerance) | |
1462 | // , TolV = Surf->VResolution(myTolerance); | |
1463 | // gp_Pnt pntproj; | |
1464 | if(TheTypeC == GeomAbs_BSplineCurve) { | |
1465 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
1466 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1467 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1468 | myProjIsDone = Standard_False; | |
1469 | Dist2Min = IntegerLast(); | |
1470 | Extrema_GenLocateExtPS extrloc(BSC->Pole(i),Surf->Surface(),(p11.X()+p22.X())/2, | |
1471 | (p11.Y()+p22.Y())/2,TolU,TolV) ; | |
1472 | if (extrloc.IsDone()) { | |
1473 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1474 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1475 | //if (Dist2Min < myTolerance * myTolerance) { | |
1476 | (extrloc.Point()).Parameter(u,v); | |
1477 | Poles2d(i).SetCoord(u,v); | |
1478 | myProjIsDone = Standard_True; | |
1479 | } | |
1480 | else break; | |
1481 | } | |
1482 | else break; | |
1483 | if(!myProjIsDone) | |
1484 | break; | |
1485 | } | |
1486 | if(myProjIsDone) { | |
1487 | TColStd_Array1OfReal Knots(1, BSC->NbKnots()); | |
1488 | BSC->Knots(Knots); | |
1489 | TColStd_Array1OfInteger Mults(1, BSC->NbKnots()); | |
1490 | BSC->Multiplicities(Mults); | |
1491 | if(BSC->IsRational()) { | |
1492 | TColStd_Array1OfReal Weights(1, BSC->NbPoles()); | |
1493 | BSC->Weights(Weights); | |
1494 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1495 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1496 | } | |
1497 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1498 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1499 | ||
1500 | ||
1501 | } | |
1502 | } | |
1503 | if(TheTypeC == GeomAbs_BezierCurve) { | |
1504 | Handle(Geom_BezierCurve) BC = Curve->Bezier(); | |
1505 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1506 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1507 | Dist2Min = IntegerLast(); | |
1508 | Extrema_GenLocateExtPS extrloc(BC->Pole(i),Surf->Surface(),0.5, | |
1509 | 0.5,TolU,TolV) ; | |
1510 | if (extrloc.IsDone()) { | |
1511 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1512 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1513 | //if (Dist2Min < myTolerance * myTolerance) { | |
1514 | (extrloc.Point()).Parameter(u,v); | |
1515 | Poles2d(i).SetCoord(u,v); | |
1516 | myProjIsDone = Standard_True; | |
1517 | } | |
1518 | else break; | |
1519 | } | |
1520 | else break; | |
1521 | if(myProjIsDone) | |
1522 | myProjIsDone = Standard_False; | |
1523 | else break; | |
1524 | } | |
1525 | if(myProjIsDone) { | |
1526 | TColStd_Array1OfReal Knots(1, 2); | |
1527 | Knots.SetValue(1,0.0); | |
1528 | Knots.SetValue(2,1.0); | |
1529 | TColStd_Array1OfInteger Mults(1, 2); | |
1530 | Mults.Init(BC->NbPoles()); | |
1531 | if(BC->IsRational()) { | |
1532 | TColStd_Array1OfReal Weights(1, BC->NbPoles()); | |
1533 | BC->Weights(Weights); | |
1534 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1535 | BC->Degree(), BC->IsPeriodic()) ; | |
1536 | } | |
1537 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1538 | BC->Degree(), BC->IsPeriodic()) ; | |
1539 | } | |
1540 | } | |
1541 | } | |
1542 | } | |
1543 | } | |
1544 | else if(TheTypeS == GeomAbs_BezierSurface) { | |
1545 | Handle(Geom_BezierSurface) BS = Surf->Bezier(); | |
1546 | if((BS->MaxDegree() == 1) && | |
1547 | (BS->NbUPoles() == 2) && | |
1548 | (BS->NbVPoles() == 2)) { | |
1549 | gp_Pnt p11 = BS->Pole(1,1); | |
1550 | gp_Pnt p12 = BS->Pole(1,2); | |
1551 | gp_Pnt p21 = BS->Pole(2,1); | |
1552 | gp_Pnt p22 = BS->Pole(2,2); | |
1553 | gp_Vec V1(p11,p12); | |
1554 | gp_Vec V2(p21,p22); | |
c6541a0c D |
1555 | if(V1.IsEqual(V2,Tol3d,Tol3d/(p11.Distance(p12)*180/M_PI))){ //OCC217 |
1556 | //if (V1.IsEqual(V2,myTolerance,myTolerance/(p11.Distance(p12)*180/M_PI))){ | |
7fd59977 | 1557 | // and if it is enough to project the poles of Curve |
1558 | Standard_Integer Dist2Min = IntegerLast(); | |
1559 | Standard_Real u,v; | |
1560 | //OCC217 | |
1561 | //Standard_Real TolU = Surf->UResolution(myTolerance) | |
1562 | // , TolV = Surf->VResolution(myTolerance); | |
1563 | ||
1564 | // gp_Pnt pntproj; | |
1565 | if(TheTypeC == GeomAbs_BSplineCurve) { | |
1566 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
1567 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1568 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1569 | myProjIsDone = Standard_False; | |
1570 | Dist2Min = IntegerLast(); | |
1571 | Extrema_GenLocateExtPS extrloc(BSC->Pole(i),Surf->Surface(),(p11.X()+p22.X())/2, | |
1572 | (p11.Y()+p22.Y())/2,TolU,TolV) ; | |
1573 | if (extrloc.IsDone()) { | |
1574 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1575 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1576 | //if (Dist2Min < myTolerance * myTolerance) { | |
1577 | (extrloc.Point()).Parameter(u,v); | |
1578 | Poles2d(i).SetCoord(u,v); | |
1579 | myProjIsDone = Standard_True; | |
1580 | } | |
1581 | else break; | |
1582 | } | |
1583 | else break; | |
1584 | if(!myProjIsDone) | |
1585 | break; | |
1586 | } | |
1587 | if(myProjIsDone) { | |
1588 | TColStd_Array1OfReal Knots(1, BSC->NbKnots()); | |
1589 | BSC->Knots(Knots); | |
1590 | TColStd_Array1OfInteger Mults(1, BSC->NbKnots()); | |
1591 | BSC->Multiplicities(Mults); | |
1592 | if(BSC->IsRational()) { | |
1593 | TColStd_Array1OfReal Weights(1, BSC->NbPoles()); | |
1594 | BSC->Weights(Weights); | |
1595 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1596 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1597 | } | |
1598 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1599 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1600 | ||
1601 | ||
1602 | } | |
1603 | } | |
1604 | if(TheTypeC == GeomAbs_BezierCurve) { | |
1605 | Handle(Geom_BezierCurve) BC = Curve->Bezier(); | |
1606 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1607 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1608 | Dist2Min = IntegerLast(); | |
1609 | Extrema_GenLocateExtPS extrloc(BC->Pole(i),Surf->Surface(),0.5, | |
1610 | 0.5,TolU,TolV) ; | |
1611 | if (extrloc.IsDone()) { | |
1612 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1613 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1614 | //if (Dist2Min < myTolerance * myTolerance) { | |
1615 | (extrloc.Point()).Parameter(u,v); | |
1616 | Poles2d(i).SetCoord(u,v); | |
1617 | myProjIsDone = Standard_True; | |
1618 | } | |
1619 | else break; | |
1620 | } | |
1621 | else break; | |
1622 | if(myProjIsDone) | |
1623 | myProjIsDone = Standard_False; | |
1624 | else break; | |
1625 | } | |
1626 | if(myProjIsDone) { | |
1627 | TColStd_Array1OfReal Knots(1, 2); | |
1628 | Knots.SetValue(1,0.0); | |
1629 | Knots.SetValue(2,1.0); | |
1630 | TColStd_Array1OfInteger Mults(1, 2); | |
1631 | Mults.Init(BC->NbPoles()); | |
1632 | if(BC->IsRational()) { | |
1633 | TColStd_Array1OfReal Weights(1, BC->NbPoles()); | |
1634 | BC->Weights(Weights); | |
1635 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1636 | BC->Degree(), BC->IsPeriodic()) ; | |
1637 | } | |
1638 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1639 | BC->Degree(), BC->IsPeriodic()) ; | |
1640 | } | |
1641 | } | |
1642 | } | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | ProjLib_PolarFunction F(Curve, Surf, InitCurve2d, Tol3d) ; //OCC217 | |
1647 | //ProjLib_PolarFunction F(Curve, Surf, InitCurve2d, myTolerance) ; | |
1648 | ||
0797d9d3 | 1649 | #ifdef OCCT_DEBUG |
7fd59977 | 1650 | Standard_Integer Nb = 50; |
1651 | ||
1652 | Standard_Real U, U1, U2; | |
1653 | U1 = F.FirstParameter(); | |
1654 | U2 = F.LastParameter(); | |
1655 | ||
1656 | TColgp_Array1OfPnt2d DummyPoles(1,Nb+1); | |
1657 | TColStd_Array1OfReal DummyKnots(1,Nb+1); | |
1658 | TColStd_Array1OfInteger DummyMults(1,Nb+1); | |
1659 | DummyMults.Init(1); | |
1660 | DummyMults(1) = 2; | |
1661 | DummyMults(Nb+1) = 2; | |
1662 | for (Standard_Integer ij = 0; ij <= Nb; ij++) { | |
1663 | U = (Nb-ij)*U1 + ij*U2; | |
1664 | U /= Nb; | |
1665 | DummyPoles(ij+1) = F.Value(U); | |
1666 | DummyKnots(ij+1) = ij; | |
1667 | } | |
1668 | Handle(Geom2d_BSplineCurve) DummyC2d = | |
1669 | new Geom2d_BSplineCurve(DummyPoles, DummyKnots, DummyMults, 1); | |
7fd59977 | 1670 | #ifdef DRAW |
96a95605 | 1671 | Standard_CString Temp = "bs2d"; |
7fd59977 | 1672 | DrawTrSurf::Set(Temp,DummyC2d); |
1673 | #endif | |
1674 | // DrawTrSurf::Set((Standard_CString ) "bs2d",DummyC2d); | |
1675 | Handle(Geom2dAdaptor_HCurve) DDD = | |
1676 | Handle(Geom2dAdaptor_HCurve)::DownCast(InitCurve2d); | |
1677 | ||
7fd59977 | 1678 | #ifdef DRAW |
96a95605 | 1679 | Temp = "initc2d"; |
7fd59977 | 1680 | DrawTrSurf::Set(Temp,DDD->ChangeCurve2d().Curve()); |
1681 | #endif | |
1682 | // DrawTrSurf::Set((Standard_CString ) "initc2d",DDD->ChangeCurve2d().Curve()); | |
1683 | #endif | |
1684 | ||
1685 | Standard_Integer Deg1,Deg2; | |
1686 | // Deg1 = 8; | |
1687 | // Deg2 = 8; | |
1688 | Deg1 = 2; //IFV | |
1689 | Deg2 = 8; //IFV | |
1690 | ||
1691 | Approx_FitAndDivide2d Fit(F,Deg1,Deg2,Tol3d,Tol2d, //OCC217 | |
1692 | //Approx_FitAndDivide2d Fit(F,Deg1,Deg2,myTolerance,myTolerance, | |
1693 | Standard_True); | |
1694 | ||
1695 | if(Fit.IsAllApproximated()) { | |
1696 | Standard_Integer i; | |
1697 | Standard_Integer NbCurves = Fit.NbMultiCurves(); | |
1698 | Standard_Integer MaxDeg = 0; | |
1699 | // To transform the MultiCurve into BSpline, it is required that all | |
1700 | // Bezier constituing it have the same degree -> Calculation of MaxDeg | |
1701 | Standard_Integer NbPoles = 1; | |
1702 | for (i = 1; i <= NbCurves; i++) { | |
1703 | Standard_Integer Deg = Fit.Value(i).Degree(); | |
1704 | MaxDeg = Max ( MaxDeg, Deg); | |
1705 | } | |
1706 | ||
1707 | NbPoles = MaxDeg * NbCurves + 1; //Tops on the BSpline | |
1708 | TColgp_Array1OfPnt2d Poles( 1, NbPoles); | |
1709 | ||
1710 | TColgp_Array1OfPnt2d TempPoles( 1, MaxDeg + 1);//to augment the degree | |
1711 | ||
1712 | TColStd_Array1OfReal Knots( 1, NbCurves + 1); //Nodes of the BSpline | |
1713 | ||
1714 | Standard_Integer Compt = 1; | |
1715 | for (i = 1; i <= NbCurves; i++) { | |
1716 | Fit.Parameters(i, Knots(i), Knots(i+1)); | |
1717 | AppParCurves_MultiCurve MC = Fit.Value( i); //Load the Ith Curve | |
1718 | TColgp_Array1OfPnt2d Poles2d( 1, MC.Degree() + 1);//Retrieve the tops | |
1719 | MC.Curve(1, Poles2d); | |
1720 | ||
1721 | //Eventual augmentation of the degree | |
1722 | Standard_Integer Inc = MaxDeg - MC.Degree(); | |
1723 | if ( Inc > 0) { | |
1724 | // BSplCLib::IncreaseDegree( Inc, Poles2d, PLib::NoWeights(), | |
1725 | BSplCLib::IncreaseDegree( MaxDeg, Poles2d, PLib::NoWeights(), | |
1726 | TempPoles, PLib::NoWeights()); | |
1727 | //update of tops of the PCurve | |
1728 | for (Standard_Integer j = 1 ; j <= MaxDeg + 1; j++) { | |
1729 | Poles.SetValue( Compt, TempPoles( j)); | |
1730 | Compt++; | |
1731 | } | |
1732 | } | |
1733 | else { | |
1734 | //update of tops of the PCurve | |
1735 | for (Standard_Integer j = 1 ; j <= MaxDeg + 1; j++) { | |
1736 | Poles.SetValue( Compt, Poles2d( j)); | |
1737 | Compt++; | |
1738 | } | |
1739 | } | |
1740 | ||
1741 | Compt--; | |
1742 | } | |
1743 | ||
1744 | //update of fields of ProjLib_Approx | |
1745 | Standard_Integer NbKnots = NbCurves + 1; | |
368cdde6 | 1746 | |
7fd59977 | 1747 | TColStd_Array1OfInteger Mults( 1, NbKnots); |
1748 | Mults.Init(MaxDeg); | |
1749 | Mults.SetValue( 1, MaxDeg + 1); | |
1750 | Mults.SetValue(NbKnots, MaxDeg + 1); | |
1751 | myProjIsDone = Standard_True; | |
1752 | Handle(Geom2d_BSplineCurve) Dummy = | |
1753 | new Geom2d_BSplineCurve(Poles,Knots,Mults,MaxDeg); | |
1754 | ||
1755 | // try to smoother the Curve GeomAbs_C1. | |
1756 | ||
1757 | Standard_Boolean OK = Standard_True; | |
1758 | ||
1759 | for (Standard_Integer ij = 2; ij < NbKnots; ij++) { | |
1760 | OK = OK && Dummy->RemoveKnot(ij,MaxDeg-1,Tol3d); //OCC217 | |
1761 | //OK = OK && Dummy->RemoveKnot(ij,MaxDeg-1,myTolerance); | |
1762 | } | |
0797d9d3 | 1763 | #ifdef OCCT_DEBUG |
7fd59977 | 1764 | if (!OK) { |
1765 | cout << "ProjLib_ComputeApproxOnPolarSurface : Smoothing echoue"<<endl; | |
1766 | } | |
1767 | #endif | |
1768 | return Dummy; | |
1769 | } | |
1770 | return Handle(Geom2d_BSplineCurve)(); | |
1771 | } | |
1772 | ||
1773 | //======================================================================= | |
1774 | //function : BSpline | |
1775 | //purpose : | |
1776 | //======================================================================= | |
1777 | ||
1778 | Handle(Geom2d_BSplineCurve) | |
1779 | ProjLib_ComputeApproxOnPolarSurface::BSpline() const | |
1780 | ||
1781 | { | |
1782 | // Modified by Sergey KHROMOV - Thu Apr 18 11:16:46 2002 End | |
1783 | // Standard_NoSuchObject_Raise_if | |
1784 | // (!myProjIsDone, | |
1785 | // "ProjLib_ComputeApproxOnPolarSurface:BSpline"); | |
1786 | // Modified by Sergey KHROMOV - Thu Apr 18 11:16:47 2002 End | |
1787 | return myBSpline ; | |
1788 | } | |
1789 | ||
1790 | //======================================================================= | |
1791 | //function : Curve2d | |
1792 | //purpose : | |
1793 | //======================================================================= | |
1794 | ||
1795 | Handle(Geom2d_Curve) | |
1796 | ProjLib_ComputeApproxOnPolarSurface::Curve2d() const | |
1797 | ||
1798 | { | |
1799 | Standard_NoSuchObject_Raise_if | |
1800 | (!myProjIsDone, | |
1801 | "ProjLib_ComputeApproxOnPolarSurface:2ndCurve2d"); | |
1802 | return my2ndCurve ; | |
1803 | } | |
1804 | ||
1805 | ||
1806 | //======================================================================= | |
1807 | //function : IsDone | |
1808 | //purpose : | |
1809 | //======================================================================= | |
1810 | ||
1811 | Standard_Boolean ProjLib_ComputeApproxOnPolarSurface::IsDone() const | |
1812 | ||
1813 | { | |
1814 | return myProjIsDone; | |
1815 | } |