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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> |
17 | #include <AppCont_Function2d.hxx> | |
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 | ||
77 | #ifdef DEB | |
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 | ||
291 | class ProjLib_PolarFunction : public AppCont_Function2d | |
292 | { | |
293 | Handle(Adaptor3d_HCurve) myCurve; | |
294 | Handle(Adaptor2d_HCurve2d) myInitialCurve2d ; | |
295 | Handle(Adaptor3d_HSurface) mySurface ; | |
296 | //OCC217 | |
297 | Standard_Real myTolU, myTolV; | |
298 | Standard_Real myDistTol3d; | |
299 | //Standard_Real myTolerance ; | |
300 | ||
301 | public : | |
302 | ||
303 | ProjLib_PolarFunction(const Handle(Adaptor3d_HCurve) & C, | |
304 | const Handle(Adaptor3d_HSurface)& Surf, | |
305 | const Handle(Adaptor2d_HCurve2d)& InitialCurve2d, | |
306 | //OCC217 | |
307 | const Standard_Real Tol3d) : | |
308 | //const Standard_Real Tolerance) : | |
309 | myCurve(C), | |
310 | myInitialCurve2d(InitialCurve2d), | |
311 | mySurface(Surf), | |
312 | //OCC217 | |
313 | myTolU(Surf->UResolution(Tol3d)), | |
314 | myTolV(Surf->VResolution(Tol3d)), | |
315 | myDistTol3d(100.0*Tol3d){} ; | |
316 | //myTolerance(Tolerance){} ; | |
317 | ||
318 | ~ProjLib_PolarFunction() {} | |
319 | ||
320 | Standard_Real FirstParameter() const | |
86eff19e | 321 | {return (myCurve->FirstParameter()/*+1.e-9*/);} |
7fd59977 | 322 | |
323 | Standard_Real LastParameter() const | |
86eff19e | 324 | {return (myCurve->LastParameter()/*-1.e-9*/);} |
7fd59977 | 325 | |
326 | gp_Pnt2d Value(const Standard_Real t) const { | |
327 | return Function_Value | |
328 | (t,mySurface,myCurve,myInitialCurve2d,myDistTol3d,myTolU,myTolV) ; //OCC217 | |
329 | //(t,mySurface,myCurve,myInitialCurve2d,myTolerance) ; | |
330 | } | |
331 | ||
332 | // Standard_Boolean D1(const Standard_Real t, gp_Pnt2d& P, gp_Vec2d& V) const | |
333 | Standard_Boolean D1(const Standard_Real , gp_Pnt2d& , gp_Vec2d& ) const | |
334 | {return Standard_False;} | |
335 | }; | |
336 | ||
337 | //======================================================================= | |
338 | //function : ProjLib_ComputeApproxOnPolarSurface | |
339 | //purpose : | |
340 | //======================================================================= | |
341 | ||
342 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface(){} | |
343 | ||
344 | ||
345 | //======================================================================= | |
346 | //function : ProjLib_ComputeApproxOnPolarSurface | |
347 | //purpose : | |
348 | //======================================================================= | |
349 | ||
350 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface | |
351 | (const Handle(Adaptor2d_HCurve2d)& InitialCurve2d, | |
352 | const Handle(Adaptor3d_HCurve)& Curve, | |
353 | const Handle(Adaptor3d_HSurface)& S, | |
354 | const Standard_Real tol3d):myProjIsDone(Standard_False) //OCC217 | |
355 | //const Standard_Real tolerance):myProjIsDone(Standard_False) | |
356 | { | |
357 | myTolerance = tol3d; //OCC217 | |
358 | //myTolerance = Max(Tolerance,Precision::PApproximation()); | |
359 | myBSpline = Perform(InitialCurve2d,Curve,S); | |
360 | } | |
361 | //======================================================================= | |
362 | //function : ProjLib_ComputeApproxOnPolarSurface | |
363 | //purpose : Process the case of sewing | |
364 | //======================================================================= | |
365 | ||
366 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface | |
367 | (const Handle(Adaptor2d_HCurve2d)& InitialCurve2d, | |
368 | const Handle(Adaptor2d_HCurve2d)& InitialCurve2dBis, | |
369 | const Handle(Adaptor3d_HCurve)& Curve, | |
370 | const Handle(Adaptor3d_HSurface)& S, | |
371 | const Standard_Real tol3d):myProjIsDone(Standard_False) //OCC217 | |
372 | //const Standard_Real tolerance):myProjIsDone(Standard_False) | |
373 | {// InitialCurve2d and InitialCurve2dBis are two pcurves of the sewing | |
374 | myTolerance = tol3d; //OCC217 | |
375 | //myTolerance = Max(tolerance,Precision::PApproximation()); | |
376 | Handle(Geom2d_BSplineCurve) bsc = Perform(InitialCurve2d,Curve,S); | |
377 | if(myProjIsDone) { | |
378 | gp_Pnt2d P2dproj, P2d, P2dBis; | |
379 | P2dproj = bsc->StartPoint(); | |
380 | P2d = InitialCurve2d->Value(InitialCurve2d->FirstParameter()); | |
381 | P2dBis = InitialCurve2dBis->Value(InitialCurve2dBis->FirstParameter()); | |
382 | ||
383 | Standard_Real Dist, DistBis; | |
384 | Dist = P2dproj.Distance(P2d); | |
385 | DistBis = P2dproj.Distance(P2dBis); | |
386 | if( Dist < DistBis) { | |
387 | // myBSpline2d is the pcurve that is found. It is translated to obtain myCurve2d | |
388 | myBSpline = bsc; | |
389 | Handle(Geom2d_Geometry) GG = myBSpline->Translated(P2d, P2dBis); | |
390 | my2ndCurve = Handle(Geom2d_Curve)::DownCast(GG); | |
391 | } | |
392 | else { | |
393 | my2ndCurve = bsc; | |
394 | Handle(Geom2d_Geometry) GG = my2ndCurve->Translated(P2dBis, P2d); | |
395 | myBSpline = Handle(Geom2d_BSplineCurve)::DownCast(GG); | |
396 | } | |
397 | } | |
398 | } | |
399 | ||
400 | //======================================================================= | |
401 | //function : ProjLib_ComputeApproxOnPolarSurface | |
402 | //purpose : case without curve of initialization | |
403 | //======================================================================= | |
404 | ||
405 | ProjLib_ComputeApproxOnPolarSurface::ProjLib_ComputeApproxOnPolarSurface | |
406 | (const Handle(Adaptor3d_HCurve)& Curve, | |
407 | const Handle(Adaptor3d_HSurface)& S, | |
408 | const Standard_Real tol3d):myProjIsDone(Standard_False) //OCC217 | |
409 | //const Standard_Real tolerance):myProjIsDone(Standard_False) | |
410 | { | |
411 | myTolerance = tol3d; //OCC217 | |
412 | //myTolerance = Max(tolerance,Precision::PApproximation()); | |
413 | const Handle_Adaptor2d_HCurve2d InitCurve2d ; | |
414 | myBSpline = Perform(InitCurve2d,Curve,S); | |
415 | } | |
416 | ||
417 | static Handle(Geom2d_BSplineCurve) Concat(Handle(Geom2d_BSplineCurve) C1, | |
418 | Handle(Geom2d_BSplineCurve) C2) | |
419 | { | |
420 | Standard_Integer deg, deg1, deg2; | |
421 | deg1 = C1->Degree(); | |
422 | deg2 = C2->Degree(); | |
423 | ||
424 | if ( deg1 < deg2) { | |
425 | C1->IncreaseDegree(deg2); | |
426 | deg = deg2; | |
427 | } | |
428 | else if ( deg2 < deg1) { | |
429 | C2->IncreaseDegree(deg1); | |
430 | deg = deg1; | |
431 | } | |
432 | else deg = deg1; | |
433 | ||
434 | Standard_Integer np1,np2,nk1,nk2,np,nk; | |
435 | np1 = C1->NbPoles(); | |
436 | nk1 = C1->NbKnots(); | |
437 | np2 = C2->NbPoles(); | |
438 | nk2 = C2->NbKnots(); | |
439 | nk = nk1 + nk2 -1; | |
440 | np = np1 + np2 -1; | |
441 | ||
442 | TColStd_Array1OfReal K1(1,nk1); C1->Knots(K1); | |
443 | TColStd_Array1OfInteger M1(1,nk1); C1->Multiplicities(M1); | |
444 | TColgp_Array1OfPnt2d P1(1,np1); C1->Poles(P1); | |
445 | TColStd_Array1OfReal K2(1,nk2); C2->Knots(K2); | |
446 | TColStd_Array1OfInteger M2(1,nk2); C2->Multiplicities(M2); | |
447 | TColgp_Array1OfPnt2d P2(1,np2); C2->Poles(P2); | |
448 | ||
449 | // Compute the new BSplineCurve | |
450 | TColStd_Array1OfReal K(1,nk); | |
451 | TColStd_Array1OfInteger M(1,nk); | |
452 | TColgp_Array1OfPnt2d P(1,np); | |
453 | ||
454 | Standard_Integer i, count = 0; | |
455 | // Set Knots and Mults | |
456 | for ( i = 1; i <= nk1; i++) { | |
457 | count++; | |
458 | K(count) = K1(i); | |
459 | M(count) = M1(i); | |
460 | } | |
461 | M(count) = deg; | |
462 | for ( i = 2; i <= nk2; i++) { | |
463 | count++; | |
464 | K(count) = K2(i); | |
465 | M(count) = M2(i); | |
466 | } | |
467 | // Set the Poles | |
468 | count = 0; | |
469 | for (i = 1; i <= np1; i++) { | |
470 | count++; | |
471 | P(count) = P1(i); | |
472 | } | |
473 | for (i = 2; i <= np2; i++) { | |
474 | count++; | |
475 | P(count) = P2(i); | |
476 | } | |
477 | ||
478 | Handle(Geom2d_BSplineCurve) BS = | |
479 | new Geom2d_BSplineCurve(P,K,M,deg); | |
480 | return BS; | |
481 | } | |
482 | ||
483 | ||
484 | //======================================================================= | |
485 | //function : Perform | |
486 | //purpose : | |
487 | //======================================================================= | |
488 | Handle(Geom2d_BSplineCurve) ProjLib_ComputeApproxOnPolarSurface::Perform | |
489 | (const Handle(Adaptor2d_HCurve2d)& InitialCurve2d, | |
490 | const Handle(Adaptor3d_HCurve)& Curve, | |
491 | const Handle(Adaptor3d_HSurface)& S) | |
492 | { | |
493 | //OCC217 | |
494 | Standard_Real Tol3d = myTolerance; | |
495 | Standard_Real ParamTol = Precision::PApproximation(); | |
496 | ||
497 | Handle(Adaptor2d_HCurve2d) AHC2d = InitialCurve2d; | |
498 | Handle(Adaptor3d_HCurve) AHC = Curve; | |
499 | ||
500 | // if the curve 3d is a BSpline with degree C0, it is cut into sections with degree C1 | |
501 | // -> bug cts18237 | |
502 | GeomAbs_CurveType typeCurve = Curve->GetType(); | |
503 | if(typeCurve == GeomAbs_BSplineCurve) { | |
504 | TColStd_ListOfTransient LOfBSpline2d; | |
505 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
506 | Standard_Integer nbInter = Curve->NbIntervals(GeomAbs_C1); | |
507 | if(nbInter > 1) { | |
508 | Standard_Integer i, j; | |
509 | Handle(Geom_TrimmedCurve) GTC; | |
510 | Handle(Geom2d_TrimmedCurve) G2dTC; | |
511 | TColStd_Array1OfReal Inter(1,nbInter+1); | |
512 | Curve->Intervals(Inter,GeomAbs_C1); | |
513 | Standard_Real firstinter = Inter.Value(1), secondinter = Inter.Value(2); | |
514 | // initialization 3d | |
515 | GTC = new Geom_TrimmedCurve(BSC, firstinter, secondinter); | |
516 | AHC = new GeomAdaptor_HCurve(GTC); | |
517 | ||
518 | // if there is an initialization curve: | |
519 | // - either this is a BSpline C0, with discontinuity at the same parameters of nodes | |
520 | // and the sections C1 are taken | |
521 | // - or this is a curve C1 and the sections of intrest are taken otherwise the curve is created. | |
522 | ||
523 | // initialization 2d | |
524 | Standard_Integer nbInter2d; | |
525 | Standard_Boolean C2dIsToCompute; | |
526 | C2dIsToCompute = InitialCurve2d.IsNull(); | |
527 | Handle(Geom2d_BSplineCurve) BSC2d; | |
528 | Handle(Geom2d_Curve) G2dC; | |
529 | ||
530 | if(!C2dIsToCompute) { | |
531 | nbInter2d = InitialCurve2d->NbIntervals(GeomAbs_C1); | |
532 | TColStd_Array1OfReal Inter2d(1,nbInter2d+1); | |
533 | InitialCurve2d->Intervals(Inter2d,GeomAbs_C1); | |
534 | j = 1; | |
535 | for(i = 1,j = 1;i <= nbInter;i++) | |
536 | if(Abs(Inter.Value(i) - Inter2d.Value(j)) < ParamTol) { //OCC217 | |
537 | //if(Abs(Inter.Value(i) - Inter2d.Value(j)) < myTolerance) { | |
538 | if (j > nbInter2d) break; | |
539 | j++; | |
540 | } | |
541 | if(j != (nbInter2d+1)) { | |
542 | C2dIsToCompute = Standard_True; | |
543 | } | |
544 | } | |
545 | ||
546 | if(C2dIsToCompute) { | |
547 | AHC2d = BuildInitialCurve2d(AHC, S); | |
548 | } | |
549 | else { | |
550 | typeCurve = InitialCurve2d->GetType(); | |
551 | switch (typeCurve) { | |
552 | case GeomAbs_Line: { | |
553 | G2dC = new Geom2d_Line(InitialCurve2d->Line()); | |
554 | break; | |
555 | } | |
556 | case GeomAbs_Circle: { | |
557 | G2dC = new Geom2d_Circle(InitialCurve2d->Circle()); | |
558 | break; | |
559 | } | |
560 | case GeomAbs_Ellipse: { | |
561 | G2dC = new Geom2d_Ellipse(InitialCurve2d->Ellipse()); | |
562 | break; | |
563 | } | |
564 | case GeomAbs_Hyperbola: { | |
565 | G2dC = new Geom2d_Hyperbola(InitialCurve2d->Hyperbola()); | |
566 | break; | |
567 | } | |
568 | case GeomAbs_Parabola: { | |
569 | G2dC = new Geom2d_Parabola(InitialCurve2d->Parabola()); | |
570 | break; | |
571 | } | |
572 | case GeomAbs_BezierCurve: { | |
573 | G2dC = InitialCurve2d->Bezier(); | |
574 | break; | |
575 | } | |
576 | case GeomAbs_BSplineCurve: { | |
577 | G2dC = InitialCurve2d->BSpline(); | |
578 | break; | |
579 | } | |
580 | case GeomAbs_OtherCurve: | |
581 | default: | |
582 | break; | |
583 | } | |
584 | gp_Pnt2d fp2d = G2dC->Value(firstinter), lp2d = G2dC->Value(secondinter); | |
585 | gp_Pnt fps, lps, fpc, lpc; | |
586 | S->D0(fp2d.X(), fp2d.Y(), fps); | |
587 | S->D0(lp2d.X(), lp2d.Y(), lps); | |
588 | Curve->D0(firstinter, fpc); | |
589 | Curve->D0(secondinter, lpc); | |
590 | //OCC217 | |
591 | if((fps.IsEqual(fpc, Tol3d)) && | |
592 | (lps.IsEqual(lpc, Tol3d))) { | |
593 | //if((fps.IsEqual(fpc, myTolerance)) && | |
594 | // (lps.IsEqual(lpc, myTolerance))) { | |
595 | G2dTC = new Geom2d_TrimmedCurve(G2dC, firstinter, secondinter); | |
596 | Geom2dAdaptor_Curve G2dAC(G2dTC); | |
597 | AHC2d = new Geom2dAdaptor_HCurve(G2dAC); | |
598 | myProjIsDone = Standard_True; | |
599 | } | |
600 | else { | |
601 | AHC2d = BuildInitialCurve2d(AHC, S); | |
602 | C2dIsToCompute = Standard_True; | |
603 | } | |
604 | } | |
605 | ||
606 | if(myProjIsDone) { | |
607 | BSC2d = ProjectUsingInitialCurve2d(AHC, S, AHC2d); | |
608 | if(BSC2d.IsNull()) return Handle(Geom2d_BSplineCurve)(); //IFV | |
609 | LOfBSpline2d.Append(BSC2d); | |
610 | } | |
611 | else { | |
612 | return Handle(Geom2d_BSplineCurve)(); | |
613 | } | |
614 | ||
615 | ||
616 | ||
617 | Standard_Real iinter, ip1inter; | |
618 | Standard_Integer nbK2d, deg; | |
619 | nbK2d = BSC2d->NbKnots(); deg = BSC2d->Degree(); | |
620 | ||
621 | for(i = 2;i <= nbInter;i++) { | |
622 | iinter = Inter.Value(i); | |
623 | ip1inter = Inter.Value(i+1); | |
624 | // general case 3d | |
625 | GTC->SetTrim(iinter, ip1inter); | |
626 | AHC = new GeomAdaptor_HCurve(GTC); | |
627 | ||
628 | // general case 2d | |
629 | if(C2dIsToCompute) { | |
630 | AHC2d = BuildInitialCurve2d(AHC, S); | |
631 | } | |
632 | else { | |
633 | gp_Pnt2d fp2d = G2dC->Value(iinter), lp2d = G2dC->Value(ip1inter); | |
634 | gp_Pnt fps, lps, fpc, lpc; | |
635 | S->D0(fp2d.X(), fp2d.Y(), fps); | |
636 | S->D0(lp2d.X(), lp2d.Y(), lps); | |
637 | Curve->D0(iinter, fpc); | |
638 | Curve->D0(ip1inter, lpc); | |
639 | //OCC217 | |
640 | if((fps.IsEqual(fpc, Tol3d)) && | |
641 | (lps.IsEqual(lpc, Tol3d))) { | |
642 | //if((fps.IsEqual(fpc, myTolerance)) && | |
643 | // (lps.IsEqual(lpc, myTolerance))) { | |
644 | G2dTC->SetTrim(iinter, ip1inter); | |
645 | Geom2dAdaptor_Curve G2dAC(G2dTC); | |
646 | AHC2d = new Geom2dAdaptor_HCurve(G2dAC); | |
647 | myProjIsDone = Standard_True; | |
648 | } | |
649 | else { | |
650 | AHC2d = BuildInitialCurve2d(AHC, S); | |
651 | } | |
652 | } | |
653 | if(myProjIsDone) { | |
654 | BSC2d = ProjectUsingInitialCurve2d(AHC, S, AHC2d); | |
655 | if(BSC2d.IsNull()) { | |
656 | return Handle(Geom2d_BSplineCurve)(); | |
657 | } | |
658 | LOfBSpline2d.Append(BSC2d); | |
659 | nbK2d += BSC2d->NbKnots() - 1; | |
660 | deg = Max(deg, BSC2d->Degree()); | |
661 | } | |
662 | else { | |
663 | return Handle(Geom2d_BSplineCurve)(); | |
664 | } | |
665 | } | |
666 | ||
667 | Standard_Integer NbC = LOfBSpline2d.Extent(); | |
668 | Handle(Geom2d_BSplineCurve) CurBS; | |
669 | CurBS = Handle(Geom2d_BSplineCurve)::DownCast(LOfBSpline2d.First()); | |
670 | LOfBSpline2d.RemoveFirst(); | |
671 | for (Standard_Integer ii = 2; ii <= NbC; ii++) { | |
672 | Handle(Geom2d_BSplineCurve) BS = | |
673 | Handle(Geom2d_BSplineCurve)::DownCast(LOfBSpline2d.First()); | |
674 | CurBS = Concat(CurBS,BS); | |
675 | LOfBSpline2d.RemoveFirst(); | |
676 | } | |
677 | return CurBS; | |
678 | } | |
679 | } | |
680 | ||
681 | if(InitialCurve2d.IsNull()) { | |
682 | AHC2d = BuildInitialCurve2d(Curve, S); | |
683 | if(!myProjIsDone) | |
684 | return Handle(Geom2d_BSplineCurve)(); | |
685 | } | |
686 | return ProjectUsingInitialCurve2d(AHC, S, AHC2d); | |
687 | } | |
688 | ||
689 | //======================================================================= | |
690 | //function : ProjLib_BuildInitialCurve2d | |
691 | //purpose : | |
692 | //======================================================================= | |
693 | ||
694 | Handle(Adaptor2d_HCurve2d) | |
695 | ProjLib_ComputeApproxOnPolarSurface:: | |
696 | BuildInitialCurve2d(const Handle(Adaptor3d_HCurve)& Curve, | |
697 | const Handle(Adaptor3d_HSurface)& Surf) | |
698 | { | |
699 | // discretize the Curve with quasiuniform deflection | |
700 | // density at least NbOfPnts points | |
701 | myProjIsDone = Standard_False; | |
702 | ||
703 | //OCC217 | |
704 | Standard_Real Tol3d = myTolerance; | |
705 | Standard_Real TolU = Surf->UResolution(Tol3d), TolV = Surf->VResolution(Tol3d); | |
706 | Standard_Real DistTol3d = 100.0*Tol3d; | |
707 | ||
ee9451ab | 708 | Standard_Real uperiod = 0., vperiod = 0.; |
709 | if(Surf->IsUPeriodic() || Surf->IsUClosed()) | |
710 | uperiod = Surf->LastUParameter() - Surf->FirstUParameter(); | |
711 | ||
712 | if(Surf->IsVPeriodic() || Surf->IsVClosed()) | |
713 | vperiod = Surf->LastVParameter() - Surf->FirstVParameter(); | |
714 | ||
715 | ||
7fd59977 | 716 | // NO myTol is Tol2d !!!! |
717 | //Standard_Real TolU = myTolerance, TolV = myTolerance; | |
718 | //Standard_Real Tol3d = 100*myTolerance; // At random Balthazar. | |
719 | ||
720 | Standard_Integer NbOfPnts = 61; | |
721 | GCPnts_QuasiUniformAbscissa QUA(Curve->GetCurve(),NbOfPnts); | |
722 | TColgp_Array1OfPnt Pts(1,NbOfPnts); | |
723 | TColStd_Array1OfReal Param(1,NbOfPnts); | |
724 | Standard_Integer i, j; | |
725 | for( i = 1; i <= NbOfPnts ; i++ ) { | |
726 | Param(i) = QUA.Parameter(i); | |
727 | Pts(i) = Curve->Value(Param(i)); | |
728 | } | |
729 | ||
730 | TColgp_Array1OfPnt2d Pts2d(1,NbOfPnts); | |
731 | TColStd_Array1OfInteger Mult(1,NbOfPnts); | |
732 | Mult.Init(1); | |
733 | Mult(1) = Mult(NbOfPnts) = 2; | |
734 | ||
ee9451ab | 735 | Standard_Real Uinf, Usup, Vinf, Vsup; |
736 | Uinf = Surf->Surface().FirstUParameter(); | |
737 | Usup = Surf->Surface().LastUParameter(); | |
7fd59977 | 738 | Vinf = Surf->Surface().FirstVParameter(); |
739 | Vsup = Surf->Surface().LastVParameter(); | |
740 | GeomAbs_SurfaceType Type = Surf->GetType(); | |
741 | if((Type != GeomAbs_BSplineSurface) && (Type != GeomAbs_BezierSurface) && | |
742 | (Type != GeomAbs_OffsetSurface)) { | |
743 | Standard_Real S, T; | |
744 | // Standard_Integer usens = 0, vsens = 0; | |
745 | // to know the position relatively to the period | |
746 | switch (Type) { | |
747 | // case GeomAbs_Plane: | |
748 | // { | |
749 | // gp_Pln Plane = Surf->Plane(); | |
750 | // for ( i = 1 ; i <= NbOfPnts ; i++) { | |
751 | // ElSLib::Parameters( Plane, Pts(i), S, T); | |
752 | // Pts2d(i).SetCoord(S,T); | |
753 | // } | |
754 | // myProjIsDone = Standard_True; | |
755 | // break; | |
756 | // } | |
757 | case GeomAbs_Cylinder: | |
758 | { | |
759 | // Standard_Real Sloc, Tloc; | |
eafb234b | 760 | Standard_Real Sloc; |
761 | Standard_Integer usens = 0; | |
762 | gp_Cylinder Cylinder = Surf->Cylinder(); | |
763 | ElSLib::Parameters( Cylinder, Pts(1), S, T); | |
764 | Pts2d(1).SetCoord(S,T); | |
765 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
766 | Sloc = S; | |
767 | ElSLib::Parameters( Cylinder, Pts(i), S, T); | |
768 | if(Abs(Sloc - S) > M_PI) { | |
769 | if(Sloc > S) | |
770 | usens++; | |
771 | else | |
772 | usens--; | |
773 | } | |
774 | Pts2d(i).SetCoord(S+usens*2*M_PI,T); | |
775 | } | |
776 | myProjIsDone = Standard_True; | |
777 | break; | |
7fd59977 | 778 | } |
779 | case GeomAbs_Cone: | |
780 | { | |
781 | // Standard_Real Sloc, Tloc; | |
eafb234b | 782 | Standard_Real Sloc; |
783 | Standard_Integer usens = 0; | |
784 | gp_Cone Cone = Surf->Cone(); | |
785 | ElSLib::Parameters( Cone, Pts(1), S, T); | |
786 | Pts2d(1).SetCoord(S,T); | |
787 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
788 | Sloc = S; | |
789 | ElSLib::Parameters( Cone, Pts(i), S, T); | |
790 | if(Abs(Sloc - S) > M_PI) { | |
791 | if(Sloc > S) | |
792 | usens++; | |
793 | else | |
794 | usens--; | |
795 | } | |
796 | Pts2d(i).SetCoord(S+usens*2*M_PI,T); | |
797 | } | |
798 | myProjIsDone = Standard_True; | |
799 | break; | |
7fd59977 | 800 | } |
801 | case GeomAbs_Sphere: | |
802 | { | |
803 | Standard_Real Sloc, Tloc; | |
804 | Standard_Integer usens = 0, vsens = 0; //usens steps by half-period | |
805 | Standard_Boolean vparit = Standard_False; | |
806 | gp_Sphere Sphere = Surf->Sphere(); | |
807 | ElSLib::Parameters( Sphere, Pts(1), S, T); | |
808 | Pts2d(1).SetCoord(S,T); | |
809 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
810 | Sloc = S;Tloc = T; | |
811 | ElSLib::Parameters( Sphere, Pts(i), S, T); | |
eafb234b | 812 | if(1.6*M_PI < Abs(Sloc - S)) { |
7fd59977 | 813 | if(Sloc > S) |
814 | usens += 2; | |
815 | else | |
816 | usens -= 2; | |
eafb234b | 817 | } |
c6541a0c | 818 | if(1.6*M_PI > Abs(Sloc - S) && Abs(Sloc - S) > 0.4*M_PI) { |
7fd59977 | 819 | vparit = !vparit; |
820 | if(Sloc > S) | |
821 | usens++; | |
822 | else | |
823 | usens--; | |
824 | if(Abs(Tloc - Vsup) < (Vsup - Vinf)/5) | |
825 | vsens++; | |
826 | else | |
827 | vsens--; | |
828 | } | |
829 | if(vparit) { | |
c6541a0c | 830 | Pts2d(i).SetCoord(S+usens*M_PI,(M_PI - T)*(vsens-1)); |
7fd59977 | 831 | } |
832 | else { | |
c6541a0c | 833 | Pts2d(i).SetCoord(S+usens*M_PI,T+vsens*M_PI); |
7fd59977 | 834 | |
835 | } | |
836 | } | |
837 | myProjIsDone = Standard_True; | |
838 | break; | |
839 | } | |
840 | case GeomAbs_Torus: | |
841 | { | |
842 | Standard_Real Sloc, Tloc; | |
843 | Standard_Integer usens = 0, vsens = 0; | |
844 | gp_Torus Torus = Surf->Torus(); | |
845 | ElSLib::Parameters( Torus, Pts(1), S, T); | |
846 | Pts2d(1).SetCoord(S,T); | |
847 | for ( i = 2 ; i <= NbOfPnts ; i++) { | |
848 | Sloc = S; Tloc = T; | |
849 | ElSLib::Parameters( Torus, Pts(i), S, T); | |
eafb234b | 850 | if(Abs(Sloc - S) > M_PI) { |
7fd59977 | 851 | if(Sloc > S) |
852 | usens++; | |
853 | else | |
854 | usens--; | |
eafb234b | 855 | } |
856 | if(Abs(Tloc - T) > M_PI) { | |
7fd59977 | 857 | if(Tloc > T) |
858 | vsens++; | |
859 | else | |
860 | vsens--; | |
eafb234b | 861 | } |
c6541a0c | 862 | Pts2d(i).SetCoord(S+usens*2*M_PI,T+vsens*2*M_PI); |
7fd59977 | 863 | } |
864 | myProjIsDone = Standard_True; | |
865 | break; | |
866 | } | |
867 | default: | |
868 | Standard_NoSuchObject::Raise("ProjLib_ComputeApproxOnPolarSurface::BuildInitialCurve2d"); | |
869 | } | |
870 | } | |
871 | else { | |
7fd59977 | 872 | myProjIsDone = Standard_False; |
873 | Standard_Real Dist2Min = 1.e+200, u = 0., v = 0.; | |
874 | gp_Pnt pntproj; | |
875 | ||
876 | TColgp_SequenceOfPnt2d Sols; | |
877 | Standard_Boolean areManyZeros = Standard_False; | |
878 | ||
879 | Curve->D0(Param.Value(1), pntproj) ; | |
880 | Extrema_ExtPS aExtPS(pntproj, Surf->Surface(), TolU, TolV) ; | |
f7e3c52f | 881 | Standard_Real aMinSqDist = RealLast(); |
882 | if (aExtPS.IsDone()) | |
883 | { | |
884 | for (i = 1; i <= aExtPS.NbExt(); i++) | |
885 | { | |
886 | Standard_Real aSqDist = aExtPS.SquareDistance(i); | |
887 | if (aSqDist < aMinSqDist) | |
888 | aMinSqDist = aSqDist; | |
889 | } | |
890 | } | |
891 | if (aMinSqDist > DistTol3d * DistTol3d) //try to project with less tolerance | |
892 | { | |
893 | TolU = Min(TolU, Precision::PConfusion()); | |
894 | TolV = Min(TolV, Precision::PConfusion()); | |
895 | aExtPS.Initialize(Surf->Surface(), | |
896 | Surf->Surface().FirstUParameter(), Surf->Surface().LastUParameter(), | |
897 | Surf->Surface().FirstVParameter(), Surf->Surface().LastVParameter(), | |
898 | TolU, TolV); | |
899 | aExtPS.Perform(pntproj); | |
900 | } | |
7fd59977 | 901 | |
902 | if( aExtPS.IsDone() && aExtPS.NbExt() >= 1 ) { | |
903 | ||
904 | Standard_Integer GoodValue = 1; | |
905 | ||
906 | for ( i = 1 ; i <= aExtPS.NbExt() ; i++ ) { | |
907 | if( aExtPS.SquareDistance(i) < DistTol3d * DistTol3d ) { | |
908 | if( aExtPS.SquareDistance(i) <= 1.e-18 ) { | |
909 | aExtPS.Point(i).Parameter(u,v); | |
910 | gp_Pnt2d p2d(u,v); | |
911 | Standard_Boolean isSame = Standard_False; | |
912 | for( j = 1; j <= Sols.Length(); j++ ) { | |
913 | if( p2d.SquareDistance( Sols.Value(j) ) <= 1.e-18 ) { | |
914 | isSame = Standard_True; | |
915 | break; | |
916 | } | |
917 | } | |
918 | if( !isSame ) Sols.Append( p2d ); | |
919 | } | |
920 | if( Dist2Min > aExtPS.SquareDistance(i) ) { | |
921 | Dist2Min = aExtPS.SquareDistance(i); | |
922 | GoodValue = i; | |
923 | } | |
924 | } | |
925 | } | |
926 | ||
927 | if( Sols.Length() > 1 ) areManyZeros = Standard_True; | |
928 | ||
929 | if( Dist2Min <= DistTol3d * DistTol3d) { | |
930 | if( !areManyZeros ) { | |
931 | aExtPS.Point(GoodValue).Parameter(u,v); | |
932 | Pts2d(1).SetCoord(u,v); | |
933 | myProjIsDone = Standard_True; | |
934 | } | |
935 | else { | |
936 | Standard_Integer nbSols = Sols.Length(); | |
937 | Standard_Real Dist2Max = -1.e+200; | |
938 | for( i = 1; i <= nbSols; i++ ) { | |
939 | const gp_Pnt2d& aP1 = Sols.Value(i); | |
940 | for( j = i+1; j <= nbSols; j++ ) { | |
941 | const gp_Pnt2d& aP2 = Sols.Value(j); | |
942 | Standard_Real aDist2 = aP1.SquareDistance(aP2); | |
943 | if( aDist2 > Dist2Max ) Dist2Max = aDist2; | |
944 | } | |
945 | } | |
946 | Standard_Real aMaxT2 = Max(TolU,TolV); | |
947 | aMaxT2 *= aMaxT2; | |
948 | if( Dist2Max > aMaxT2 ) { | |
949 | Standard_Integer tPp = 0; | |
950 | for( i = 1; i <= 5; i++ ) { | |
951 | Standard_Integer nbExtOk = 0; | |
952 | Standard_Integer indExt = 0; | |
953 | Standard_Integer iT = 1 + (NbOfPnts - 1)/5*i; | |
954 | Curve->D0( Param.Value(iT), pntproj ); | |
955 | Extrema_ExtPS aTPS( pntproj, Surf->Surface(), TolU, TolV ); | |
956 | Dist2Min = 1.e+200; | |
957 | if( aTPS.IsDone() && aTPS.NbExt() >= 1 ) { | |
958 | for( j = 1 ; j <= aTPS.NbExt() ; j++ ) { | |
959 | if( aTPS.SquareDistance(j) < DistTol3d * DistTol3d ) { | |
960 | nbExtOk++; | |
961 | if( aTPS.SquareDistance(j) < Dist2Min ) { | |
962 | Dist2Min = aTPS.SquareDistance(j); | |
963 | indExt = j; | |
964 | } | |
965 | } | |
966 | } | |
967 | } | |
968 | if( nbExtOk == 1 ) { | |
969 | tPp = iT; | |
970 | aTPS.Point(indExt).Parameter(u,v); | |
971 | break; | |
972 | } | |
973 | } | |
974 | ||
975 | if( tPp != 0 ) { | |
976 | gp_Pnt2d aPp = gp_Pnt2d(u,v); | |
977 | gp_Pnt2d aPn; | |
978 | j = 1; | |
979 | Standard_Boolean isFound = Standard_False; | |
980 | while( !isFound ) { | |
981 | Curve->D0( Param.Value(tPp+j), pntproj ); | |
982 | Extrema_ExtPS aTPS( pntproj, Surf->Surface(), TolU, TolV ); | |
983 | Dist2Min = 1.e+200; | |
984 | Standard_Integer indExt = 0; | |
985 | if( aTPS.IsDone() && aTPS.NbExt() >= 1 ) { | |
986 | for( i = 1 ; i <= aTPS.NbExt() ; i++ ) { | |
987 | if( aTPS.SquareDistance(i) < DistTol3d * DistTol3d && aTPS.SquareDistance(i) < Dist2Min ) { | |
988 | Dist2Min = aTPS.SquareDistance(i); | |
989 | indExt = i; | |
990 | isFound = Standard_True; | |
991 | } | |
992 | } | |
993 | } | |
994 | if( isFound ) { | |
995 | aTPS.Point(indExt).Parameter(u,v); | |
996 | aPn = gp_Pnt2d(u,v); | |
997 | break; | |
998 | } | |
999 | j++; | |
1000 | if( (tPp+j) > NbOfPnts ) break; | |
1001 | } | |
1002 | ||
1003 | if( isFound ) { | |
1004 | gp_Vec2d atV(aPp,aPn); | |
1005 | Standard_Boolean isChosen = Standard_False; | |
1006 | for( i = 1; i <= nbSols; i++ ) { | |
1007 | const gp_Pnt2d& aP1 = Sols.Value(i); | |
1008 | gp_Vec2d asV(aP1,aPp); | |
1009 | if( asV.Dot(atV) > 0. ) { | |
1010 | isChosen = Standard_True; | |
1011 | Pts2d(1).SetCoord(aP1.X(),aP1.Y()); | |
1012 | myProjIsDone = Standard_True; | |
1013 | break; | |
1014 | } | |
1015 | } | |
1016 | if( !isChosen ) { | |
1017 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1018 | Pts2d(1).SetCoord(u,v); | |
1019 | myProjIsDone = Standard_True; | |
1020 | } | |
1021 | } | |
1022 | else { | |
1023 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1024 | Pts2d(1).SetCoord(u,v); | |
1025 | myProjIsDone = Standard_True; | |
1026 | } | |
1027 | } | |
1028 | else { | |
1029 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1030 | Pts2d(1).SetCoord(u,v); | |
1031 | myProjIsDone = Standard_True; | |
1032 | } | |
1033 | } | |
1034 | else { | |
1035 | aExtPS.Point(GoodValue).Parameter(u,v); | |
1036 | Pts2d(1).SetCoord(u,v); | |
1037 | myProjIsDone = Standard_True; | |
1038 | } | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | // calculate the following points with GenLocate_ExtPS | |
1043 | // (and store the result and each parameter in a sequence) | |
1044 | Standard_Integer usens = 0, vsens = 0; | |
1045 | // to know the position relatively to the period | |
ee9451ab | 1046 | Standard_Real U0 = u, V0 = v, U1 = u, V1 = v; |
7fd59977 | 1047 | // U0 and V0 are the points in the initialized period |
1048 | // (period with u and v), | |
1049 | // U1 and V1 are the points for construction of poles | |
1050 | ||
7fd59977 | 1051 | for ( i = 2 ; i <= NbOfPnts ; i++) |
1052 | if(myProjIsDone) { | |
1053 | myProjIsDone = Standard_False; | |
1054 | Dist2Min = RealLast(); | |
1055 | Curve->D0(Param.Value(i), pntproj); | |
1056 | Extrema_GenLocateExtPS aLocateExtPS | |
1057 | (pntproj, Surf->Surface(), U0, V0, TolU, TolV) ; | |
1058 | ||
1059 | if (aLocateExtPS.IsDone()) | |
15173a08 | 1060 | { |
1061 | if (aLocateExtPS.SquareDistance() < DistTol3d * DistTol3d) | |
1062 | { //OCC217 | |
1063 | //if (aLocateExtPS.SquareDistance() < Tol3d * Tol3d) { | |
7fd59977 | 1064 | (aLocateExtPS.Point()).Parameter(U0,V0); |
1065 | U1 = U0 + usens*uperiod; | |
1066 | V1 = V0 + vsens*vperiod; | |
1067 | Pts2d(i).SetCoord(U1,V1); | |
1068 | myProjIsDone = Standard_True; | |
1069 | } | |
15173a08 | 1070 | else |
1071 | { | |
1072 | Extrema_ExtPS aGlobalExtr(pntproj, Surf->Surface(), TolU, TolV); | |
1073 | if (aGlobalExtr.IsDone()) | |
1074 | { | |
1075 | Standard_Real LocalMinSqDist = RealLast(); | |
1076 | Standard_Integer imin = 0; | |
1077 | for (Standard_Integer isol = 1; isol <= aGlobalExtr.NbExt(); isol++) | |
1078 | { | |
1079 | Standard_Real aSqDist = aGlobalExtr.SquareDistance(isol); | |
1080 | if (aSqDist < LocalMinSqDist) | |
1081 | { | |
1082 | LocalMinSqDist = aSqDist; | |
1083 | imin = isol; | |
1084 | } | |
1085 | } | |
1086 | if (LocalMinSqDist < DistTol3d * DistTol3d) | |
1087 | { | |
1088 | Standard_Real LocalU, LocalV; | |
1089 | aGlobalExtr.Point(imin).Parameter(LocalU, LocalV); | |
1090 | if (uperiod > 0. && Abs(U0 - LocalU) >= uperiod/2.) | |
1091 | { | |
1092 | if (LocalU > U0) | |
1093 | usens = -1; | |
1094 | else | |
1095 | usens = 1; | |
1096 | } | |
1097 | if (vperiod > 0. && Abs(V0 - LocalV) >= vperiod/2.) | |
1098 | { | |
1099 | if (LocalV > V0) | |
1100 | vsens = -1; | |
1101 | else | |
1102 | vsens = 1; | |
1103 | } | |
1104 | U0 = LocalU; V0 = LocalV; | |
1105 | U1 = U0 + usens*uperiod; | |
1106 | V1 = V0 + vsens*vperiod; | |
1107 | Pts2d(i).SetCoord(U1,V1); | |
1108 | myProjIsDone = Standard_True; | |
1109 | } | |
1110 | } | |
1111 | } | |
1112 | } | |
7fd59977 | 1113 | if(!myProjIsDone && uperiod) { |
1114 | Standard_Real Uinf, Usup, Uaux; | |
1115 | Uinf = Surf->Surface().FirstUParameter(); | |
1116 | Usup = Surf->Surface().LastUParameter(); | |
1117 | if((Usup - U0) > (U0 - Uinf)) | |
1118 | Uaux = 2*Uinf - U0 + uperiod; | |
1119 | else | |
1120 | Uaux = 2*Usup - U0 - uperiod; | |
1121 | Extrema_GenLocateExtPS locext(pntproj, | |
1122 | Surf->Surface(), | |
1123 | Uaux, V0, TolU, TolV); | |
1124 | if (locext.IsDone()) | |
1125 | if (locext.SquareDistance() < DistTol3d * DistTol3d) { //OCC217 | |
1126 | //if (locext.SquareDistance() < Tol3d * Tol3d) { | |
1127 | (locext.Point()).Parameter(u,v); | |
1128 | if((Usup - U0) > (U0 - Uinf)) | |
1129 | usens--; | |
1130 | else | |
1131 | usens++; | |
1132 | U0 = u; V0 = v; | |
1133 | U1 = U0 + usens*uperiod; | |
1134 | V1 = V0 + vsens*vperiod; | |
1135 | Pts2d(i).SetCoord(U1,V1); | |
1136 | myProjIsDone = Standard_True; | |
1137 | } | |
1138 | } | |
1139 | if(!myProjIsDone && vperiod) { | |
1140 | Standard_Real Vinf, Vsup, Vaux; | |
1141 | Vinf = Surf->Surface().FirstVParameter(); | |
1142 | Vsup = Surf->Surface().LastVParameter(); | |
1143 | if((Vsup - V0) > (V0 - Vinf)) | |
1144 | Vaux = 2*Vinf - V0 + vperiod; | |
1145 | else | |
1146 | Vaux = 2*Vsup - V0 - vperiod; | |
1147 | Extrema_GenLocateExtPS locext(pntproj, | |
1148 | Surf->Surface(), | |
1149 | U0, Vaux, TolU, TolV) ; | |
1150 | if (locext.IsDone()) | |
1151 | if (locext.SquareDistance() < DistTol3d * DistTol3d) { //OCC217 | |
1152 | //if (locext.SquareDistance() < Tol3d * Tol3d) { | |
1153 | (locext.Point()).Parameter(u,v); | |
1154 | if((Vsup - V0) > (V0 - Vinf)) | |
1155 | vsens--; | |
1156 | else | |
1157 | vsens++; | |
1158 | U0 = u; V0 = v; | |
1159 | U1 = U0 + usens*uperiod; | |
1160 | V1 = V0 + vsens*vperiod; | |
1161 | Pts2d(i).SetCoord(U1,V1); | |
1162 | myProjIsDone = Standard_True; | |
1163 | } | |
1164 | } | |
1165 | if(!myProjIsDone && uperiod && vperiod) { | |
1166 | Standard_Real Uaux, Vaux; | |
1167 | if((Usup - U0) > (U0 - Uinf)) | |
1168 | Uaux = 2*Uinf - U0 + uperiod; | |
1169 | else | |
1170 | Uaux = 2*Usup - U0 - uperiod; | |
1171 | if((Vsup - V0) > (V0 - Vinf)) | |
1172 | Vaux = 2*Vinf - V0 + vperiod; | |
1173 | else | |
1174 | Vaux = 2*Vsup - V0 - vperiod; | |
1175 | Extrema_GenLocateExtPS locext(pntproj, | |
1176 | Surf->Surface(), | |
1177 | Uaux, Vaux, TolU, TolV); | |
1178 | if (locext.IsDone()) | |
1179 | if (locext.SquareDistance() < DistTol3d * DistTol3d) { | |
1180 | //if (locext.SquareDistance() < Tol3d * Tol3d) { | |
1181 | (locext.Point()).Parameter(u,v); | |
1182 | if((Usup - U0) > (U0 - Uinf)) | |
1183 | usens--; | |
1184 | else | |
1185 | usens++; | |
1186 | if((Vsup - V0) > (V0 - Vinf)) | |
1187 | vsens--; | |
1188 | else | |
1189 | vsens++; | |
1190 | U0 = u; V0 = v; | |
1191 | U1 = U0 + usens*uperiod; | |
1192 | V1 = V0 + vsens*vperiod; | |
1193 | Pts2d(i).SetCoord(U1,V1); | |
1194 | myProjIsDone = Standard_True; | |
1195 | } | |
1196 | } | |
1197 | if(!myProjIsDone) { | |
1198 | Extrema_ExtPS ext(pntproj, Surf->Surface(), TolU, TolV) ; | |
1199 | if (ext.IsDone()) { | |
1200 | Dist2Min = ext.SquareDistance(1); | |
1201 | Standard_Integer GoodValue = 1; | |
1202 | for ( j = 2 ; j <= ext.NbExt() ; j++ ) | |
1203 | if( Dist2Min > ext.SquareDistance(j)) { | |
1204 | Dist2Min = ext.SquareDistance(j); | |
1205 | GoodValue = j; | |
1206 | } | |
1207 | if (Dist2Min < DistTol3d * DistTol3d) { | |
1208 | //if (Dist2Min < Tol3d * Tol3d) { | |
1209 | (ext.Point(GoodValue)).Parameter(u,v); | |
eafb234b | 1210 | if(uperiod) { |
7fd59977 | 1211 | if((U0 - u) > (2*uperiod/3)) { |
1212 | usens++; | |
1213 | } | |
1214 | else | |
1215 | if((u - U0) > (2*uperiod/3)) { | |
1216 | usens--; | |
1217 | } | |
eafb234b | 1218 | } |
1219 | if(vperiod) { | |
7fd59977 | 1220 | if((V0 - v) > (vperiod/2)) { |
1221 | vsens++; | |
1222 | } | |
1223 | else | |
1224 | if((v - V0) > (vperiod/2)) { | |
1225 | vsens--; | |
1226 | } | |
eafb234b | 1227 | } |
7fd59977 | 1228 | U0 = u; V0 = v; |
1229 | U1 = U0 + usens*uperiod; | |
1230 | V1 = V0 + vsens*vperiod; | |
1231 | Pts2d(i).SetCoord(U1,V1); | |
1232 | myProjIsDone = Standard_True; | |
1233 | } | |
1234 | } | |
1235 | } | |
1236 | } | |
1237 | else break; | |
1238 | } | |
1239 | } | |
1240 | // -- Pnts2d is transformed into Geom2d_BSplineCurve, with the help of Param and Mult | |
1241 | if(myProjIsDone) { | |
1242 | myBSpline = new Geom2d_BSplineCurve(Pts2d,Param,Mult,1); | |
ee9451ab | 1243 | //jgv: put the curve into parametric range |
1244 | gp_Pnt2d MidPoint = myBSpline->Value(0.5*(myBSpline->FirstParameter() + myBSpline->LastParameter())); | |
1245 | Standard_Real TestU = MidPoint.X(), TestV = MidPoint.Y(); | |
1246 | Standard_Real sense = 0.; | |
1247 | if (uperiod) | |
1248 | { | |
1249 | if (TestU < Uinf - TolU) | |
1250 | sense = 1.; | |
1251 | else if (TestU > Usup + TolU) | |
1252 | sense = -1; | |
1253 | while (TestU < Uinf - TolU || TestU > Usup + TolU) | |
1254 | TestU += sense * uperiod; | |
1255 | } | |
1256 | if (vperiod) | |
1257 | { | |
1258 | sense = 0.; | |
1259 | if (TestV < Vinf - TolV) | |
1260 | sense = 1.; | |
1261 | else if (TestV > Vsup + TolV) | |
1262 | sense = -1.; | |
1263 | while (TestV < Vinf - TolV || TestV > Vsup + TolV) | |
1264 | TestV += sense * vperiod; | |
1265 | } | |
1266 | gp_Vec2d Offset(TestU - MidPoint.X(), TestV - MidPoint.Y()); | |
1267 | if (Abs(Offset.X()) > gp::Resolution() || | |
1268 | Abs(Offset.Y()) > gp::Resolution()) | |
1269 | myBSpline->Translate(Offset); | |
1270 | ////////////////////////////////////////// | |
7fd59977 | 1271 | Geom2dAdaptor_Curve GAC(myBSpline); |
1272 | Handle(Adaptor2d_HCurve2d) IC2d = new Geom2dAdaptor_HCurve(GAC); | |
1273 | #ifdef DEB | |
1274 | // char name [100]; | |
1275 | // sprintf(name,"%s_%d","build",compteur++); | |
1276 | // DrawTrSurf::Set(name,myBSpline); | |
1277 | #endif | |
1278 | return IC2d; | |
1279 | } | |
1280 | else { | |
1281 | // Modified by Sergey KHROMOV - Thu Apr 18 10:57:50 2002 Begin | |
1282 | // Standard_NoSuchObject_Raise_if(1,"ProjLib_Compu: build echec"); | |
1283 | // Modified by Sergey KHROMOV - Thu Apr 18 10:57:51 2002 End | |
1284 | return Handle(Adaptor2d_HCurve2d)(); | |
1285 | } | |
d3f26155 | 1286 | // myProjIsDone = Standard_False; |
7fd59977 | 1287 | // Modified by Sergey KHROMOV - Thu Apr 18 10:58:01 2002 Begin |
1288 | // Standard_NoSuchObject_Raise_if(1,"ProjLib_ComputeOnPS: build echec"); | |
1289 | // Modified by Sergey KHROMOV - Thu Apr 18 10:58:02 2002 End | |
7fd59977 | 1290 | } |
1291 | ||
1292 | ||
1293 | ||
1294 | ||
1295 | //======================================================================= | |
1296 | //function : ProjLib_ProjectUsingInitialCurve2d | |
1297 | //purpose : | |
1298 | //======================================================================= | |
1299 | Handle(Geom2d_BSplineCurve) | |
1300 | ProjLib_ComputeApproxOnPolarSurface:: | |
1301 | ProjectUsingInitialCurve2d(const Handle(Adaptor3d_HCurve)& Curve, | |
1302 | const Handle(Adaptor3d_HSurface)& Surf, | |
1303 | const Handle(Adaptor2d_HCurve2d)& InitCurve2d) | |
1304 | { | |
1305 | //OCC217 | |
1306 | Standard_Real Tol3d = myTolerance; | |
1307 | Standard_Real DistTol3d = 1.0*Tol3d; | |
1308 | Standard_Real TolU = Surf->UResolution(Tol3d), TolV = Surf->VResolution(Tol3d); | |
1309 | Standard_Real Tol2d = Sqrt(TolU*TolU + TolV*TolV); | |
1310 | ||
1311 | Standard_Integer i; | |
1312 | GeomAbs_SurfaceType TheTypeS = Surf->GetType(); | |
1313 | GeomAbs_CurveType TheTypeC = Curve->GetType(); | |
1314 | // Handle(Standard_Type) TheTypeS = Surf->DynamicType(); | |
1315 | // Handle(Standard_Type) TheTypeC = Curve->DynamicType(); // si on a : | |
1316 | // if(TheTypeS == STANDARD_TYPE(Geom_BSplineSurface)) { | |
1317 | if(TheTypeS == GeomAbs_Plane) { | |
1318 | Standard_Real S, T; | |
1319 | gp_Pln Plane = Surf->Plane(); | |
1320 | if(TheTypeC == GeomAbs_BSplineCurve) { | |
1321 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
1322 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1323 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1324 | ElSLib::Parameters( Plane, BSC->Pole(i), S, T); | |
1325 | Poles2d(i).SetCoord(S,T); | |
1326 | } | |
1327 | TColStd_Array1OfReal Knots(1, BSC->NbKnots()); | |
1328 | BSC->Knots(Knots); | |
1329 | TColStd_Array1OfInteger Mults(1, BSC->NbKnots()); | |
1330 | BSC->Multiplicities(Mults); | |
1331 | if(BSC->IsRational()) { | |
1332 | TColStd_Array1OfReal Weights(1, BSC->NbPoles()); | |
1333 | BSC->Weights(Weights); | |
1334 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1335 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1336 | } | |
1337 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1338 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1339 | ||
1340 | } | |
1341 | if(TheTypeC == GeomAbs_BezierCurve) { | |
1342 | Handle(Geom_BezierCurve) BC = Curve->Bezier(); | |
1343 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1344 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1345 | ElSLib::Parameters( Plane, BC->Pole(i), S, T); | |
1346 | Poles2d(i).SetCoord(S,T); | |
1347 | } | |
1348 | TColStd_Array1OfReal Knots(1, 2); | |
1349 | Knots.SetValue(1,0.0); | |
1350 | Knots.SetValue(2,1.0); | |
1351 | TColStd_Array1OfInteger Mults(1, 2); | |
1352 | Mults.Init(BC->NbPoles()); | |
1353 | if(BC->IsRational()) { | |
1354 | TColStd_Array1OfReal Weights(1, BC->NbPoles()); | |
1355 | BC->Weights(Weights); | |
1356 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1357 | BC->Degree(), BC->IsPeriodic()) ; | |
1358 | } | |
1359 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1360 | BC->Degree(), BC->IsPeriodic()) ; | |
1361 | } | |
1362 | } | |
1363 | if(TheTypeS == GeomAbs_BSplineSurface) { | |
1364 | Handle(Geom_BSplineSurface) BSS = Surf->BSpline(); | |
1365 | if((BSS->MaxDegree() == 1) && | |
1366 | (BSS->NbUPoles() == 2) && | |
1367 | (BSS->NbVPoles() == 2)) { | |
1368 | gp_Pnt p11 = BSS->Pole(1,1); | |
1369 | gp_Pnt p12 = BSS->Pole(1,2); | |
1370 | gp_Pnt p21 = BSS->Pole(2,1); | |
1371 | gp_Pnt p22 = BSS->Pole(2,2); | |
1372 | gp_Vec V1(p11,p12); | |
1373 | gp_Vec V2(p21,p22); | |
c6541a0c D |
1374 | if(V1.IsEqual(V2,Tol3d,Tol3d/(p11.Distance(p12)*180/M_PI))){ //OCC217 |
1375 | //if(V1.IsEqual(V2,myTolerance,myTolerance/(p11.Distance(p12)*180/M_PI))){ | |
7fd59977 | 1376 | // so the polar surface is plane |
1377 | // and if it is enough to projet the poles of Curve | |
1378 | Standard_Integer Dist2Min = IntegerLast(); | |
1379 | Standard_Real u,v; | |
1380 | //OCC217 | |
1381 | //Standard_Real TolU = Surf->UResolution(myTolerance) | |
1382 | // , TolV = Surf->VResolution(myTolerance); | |
1383 | // gp_Pnt pntproj; | |
1384 | if(TheTypeC == GeomAbs_BSplineCurve) { | |
1385 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
1386 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1387 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1388 | myProjIsDone = Standard_False; | |
1389 | Dist2Min = IntegerLast(); | |
1390 | Extrema_GenLocateExtPS extrloc(BSC->Pole(i),Surf->Surface(),(p11.X()+p22.X())/2, | |
1391 | (p11.Y()+p22.Y())/2,TolU,TolV) ; | |
1392 | if (extrloc.IsDone()) { | |
1393 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1394 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1395 | //if (Dist2Min < myTolerance * myTolerance) { | |
1396 | (extrloc.Point()).Parameter(u,v); | |
1397 | Poles2d(i).SetCoord(u,v); | |
1398 | myProjIsDone = Standard_True; | |
1399 | } | |
1400 | else break; | |
1401 | } | |
1402 | else break; | |
1403 | if(!myProjIsDone) | |
1404 | break; | |
1405 | } | |
1406 | if(myProjIsDone) { | |
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 | } | |
1422 | } | |
1423 | if(TheTypeC == GeomAbs_BezierCurve) { | |
1424 | Handle(Geom_BezierCurve) BC = Curve->Bezier(); | |
1425 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1426 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1427 | Dist2Min = IntegerLast(); | |
1428 | Extrema_GenLocateExtPS extrloc(BC->Pole(i),Surf->Surface(),0.5, | |
1429 | 0.5,TolU,TolV) ; | |
1430 | if (extrloc.IsDone()) { | |
1431 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1432 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1433 | //if (Dist2Min < myTolerance * myTolerance) { | |
1434 | (extrloc.Point()).Parameter(u,v); | |
1435 | Poles2d(i).SetCoord(u,v); | |
1436 | myProjIsDone = Standard_True; | |
1437 | } | |
1438 | else break; | |
1439 | } | |
1440 | else break; | |
1441 | if(myProjIsDone) | |
1442 | myProjIsDone = Standard_False; | |
1443 | else break; | |
1444 | } | |
1445 | if(myProjIsDone) { | |
1446 | TColStd_Array1OfReal Knots(1, 2); | |
1447 | Knots.SetValue(1,0.0); | |
1448 | Knots.SetValue(2,1.0); | |
1449 | TColStd_Array1OfInteger Mults(1, 2); | |
1450 | Mults.Init(BC->NbPoles()); | |
1451 | if(BC->IsRational()) { | |
1452 | TColStd_Array1OfReal Weights(1, BC->NbPoles()); | |
1453 | BC->Weights(Weights); | |
1454 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1455 | BC->Degree(), BC->IsPeriodic()) ; | |
1456 | } | |
1457 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1458 | BC->Degree(), BC->IsPeriodic()) ; | |
1459 | } | |
1460 | } | |
1461 | } | |
1462 | } | |
1463 | } | |
1464 | else if(TheTypeS == GeomAbs_BezierSurface) { | |
1465 | Handle(Geom_BezierSurface) BS = Surf->Bezier(); | |
1466 | if((BS->MaxDegree() == 1) && | |
1467 | (BS->NbUPoles() == 2) && | |
1468 | (BS->NbVPoles() == 2)) { | |
1469 | gp_Pnt p11 = BS->Pole(1,1); | |
1470 | gp_Pnt p12 = BS->Pole(1,2); | |
1471 | gp_Pnt p21 = BS->Pole(2,1); | |
1472 | gp_Pnt p22 = BS->Pole(2,2); | |
1473 | gp_Vec V1(p11,p12); | |
1474 | gp_Vec V2(p21,p22); | |
c6541a0c D |
1475 | if(V1.IsEqual(V2,Tol3d,Tol3d/(p11.Distance(p12)*180/M_PI))){ //OCC217 |
1476 | //if (V1.IsEqual(V2,myTolerance,myTolerance/(p11.Distance(p12)*180/M_PI))){ | |
7fd59977 | 1477 | // and if it is enough to project the poles of Curve |
1478 | Standard_Integer Dist2Min = IntegerLast(); | |
1479 | Standard_Real u,v; | |
1480 | //OCC217 | |
1481 | //Standard_Real TolU = Surf->UResolution(myTolerance) | |
1482 | // , TolV = Surf->VResolution(myTolerance); | |
1483 | ||
1484 | // gp_Pnt pntproj; | |
1485 | if(TheTypeC == GeomAbs_BSplineCurve) { | |
1486 | Handle(Geom_BSplineCurve) BSC = Curve->BSpline(); | |
1487 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1488 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1489 | myProjIsDone = Standard_False; | |
1490 | Dist2Min = IntegerLast(); | |
1491 | Extrema_GenLocateExtPS extrloc(BSC->Pole(i),Surf->Surface(),(p11.X()+p22.X())/2, | |
1492 | (p11.Y()+p22.Y())/2,TolU,TolV) ; | |
1493 | if (extrloc.IsDone()) { | |
1494 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1495 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1496 | //if (Dist2Min < myTolerance * myTolerance) { | |
1497 | (extrloc.Point()).Parameter(u,v); | |
1498 | Poles2d(i).SetCoord(u,v); | |
1499 | myProjIsDone = Standard_True; | |
1500 | } | |
1501 | else break; | |
1502 | } | |
1503 | else break; | |
1504 | if(!myProjIsDone) | |
1505 | break; | |
1506 | } | |
1507 | if(myProjIsDone) { | |
1508 | TColStd_Array1OfReal Knots(1, BSC->NbKnots()); | |
1509 | BSC->Knots(Knots); | |
1510 | TColStd_Array1OfInteger Mults(1, BSC->NbKnots()); | |
1511 | BSC->Multiplicities(Mults); | |
1512 | if(BSC->IsRational()) { | |
1513 | TColStd_Array1OfReal Weights(1, BSC->NbPoles()); | |
1514 | BSC->Weights(Weights); | |
1515 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1516 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1517 | } | |
1518 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1519 | BSC->Degree(), BSC->IsPeriodic()) ; | |
1520 | ||
1521 | ||
1522 | } | |
1523 | } | |
1524 | if(TheTypeC == GeomAbs_BezierCurve) { | |
1525 | Handle(Geom_BezierCurve) BC = Curve->Bezier(); | |
1526 | TColgp_Array1OfPnt2d Poles2d(1,Curve->NbPoles()); | |
1527 | for(i = 1;i <= Curve->NbPoles();i++) { | |
1528 | Dist2Min = IntegerLast(); | |
1529 | Extrema_GenLocateExtPS extrloc(BC->Pole(i),Surf->Surface(),0.5, | |
1530 | 0.5,TolU,TolV) ; | |
1531 | if (extrloc.IsDone()) { | |
1532 | Dist2Min = (Standard_Integer ) extrloc.SquareDistance(); | |
1533 | if (Dist2Min < DistTol3d * DistTol3d) { //OCC217 | |
1534 | //if (Dist2Min < myTolerance * myTolerance) { | |
1535 | (extrloc.Point()).Parameter(u,v); | |
1536 | Poles2d(i).SetCoord(u,v); | |
1537 | myProjIsDone = Standard_True; | |
1538 | } | |
1539 | else break; | |
1540 | } | |
1541 | else break; | |
1542 | if(myProjIsDone) | |
1543 | myProjIsDone = Standard_False; | |
1544 | else break; | |
1545 | } | |
1546 | if(myProjIsDone) { | |
1547 | TColStd_Array1OfReal Knots(1, 2); | |
1548 | Knots.SetValue(1,0.0); | |
1549 | Knots.SetValue(2,1.0); | |
1550 | TColStd_Array1OfInteger Mults(1, 2); | |
1551 | Mults.Init(BC->NbPoles()); | |
1552 | if(BC->IsRational()) { | |
1553 | TColStd_Array1OfReal Weights(1, BC->NbPoles()); | |
1554 | BC->Weights(Weights); | |
1555 | return new Geom2d_BSplineCurve(Poles2d, Weights, Knots, Mults, | |
1556 | BC->Degree(), BC->IsPeriodic()) ; | |
1557 | } | |
1558 | return new Geom2d_BSplineCurve(Poles2d, Knots, Mults, | |
1559 | BC->Degree(), BC->IsPeriodic()) ; | |
1560 | } | |
1561 | } | |
1562 | } | |
1563 | } | |
1564 | } | |
1565 | ||
1566 | ProjLib_PolarFunction F(Curve, Surf, InitCurve2d, Tol3d) ; //OCC217 | |
1567 | //ProjLib_PolarFunction F(Curve, Surf, InitCurve2d, myTolerance) ; | |
1568 | ||
1569 | #ifdef DEB | |
1570 | Standard_Integer Nb = 50; | |
1571 | ||
1572 | Standard_Real U, U1, U2; | |
1573 | U1 = F.FirstParameter(); | |
1574 | U2 = F.LastParameter(); | |
1575 | ||
1576 | TColgp_Array1OfPnt2d DummyPoles(1,Nb+1); | |
1577 | TColStd_Array1OfReal DummyKnots(1,Nb+1); | |
1578 | TColStd_Array1OfInteger DummyMults(1,Nb+1); | |
1579 | DummyMults.Init(1); | |
1580 | DummyMults(1) = 2; | |
1581 | DummyMults(Nb+1) = 2; | |
1582 | for (Standard_Integer ij = 0; ij <= Nb; ij++) { | |
1583 | U = (Nb-ij)*U1 + ij*U2; | |
1584 | U /= Nb; | |
1585 | DummyPoles(ij+1) = F.Value(U); | |
1586 | DummyKnots(ij+1) = ij; | |
1587 | } | |
1588 | Handle(Geom2d_BSplineCurve) DummyC2d = | |
1589 | new Geom2d_BSplineCurve(DummyPoles, DummyKnots, DummyMults, 1); | |
7fd59977 | 1590 | #ifdef DRAW |
96a95605 | 1591 | Standard_CString Temp = "bs2d"; |
7fd59977 | 1592 | DrawTrSurf::Set(Temp,DummyC2d); |
1593 | #endif | |
1594 | // DrawTrSurf::Set((Standard_CString ) "bs2d",DummyC2d); | |
1595 | Handle(Geom2dAdaptor_HCurve) DDD = | |
1596 | Handle(Geom2dAdaptor_HCurve)::DownCast(InitCurve2d); | |
1597 | ||
7fd59977 | 1598 | #ifdef DRAW |
96a95605 | 1599 | Temp = "initc2d"; |
7fd59977 | 1600 | DrawTrSurf::Set(Temp,DDD->ChangeCurve2d().Curve()); |
1601 | #endif | |
1602 | // DrawTrSurf::Set((Standard_CString ) "initc2d",DDD->ChangeCurve2d().Curve()); | |
1603 | #endif | |
1604 | ||
1605 | Standard_Integer Deg1,Deg2; | |
1606 | // Deg1 = 8; | |
1607 | // Deg2 = 8; | |
1608 | Deg1 = 2; //IFV | |
1609 | Deg2 = 8; //IFV | |
1610 | ||
1611 | Approx_FitAndDivide2d Fit(F,Deg1,Deg2,Tol3d,Tol2d, //OCC217 | |
1612 | //Approx_FitAndDivide2d Fit(F,Deg1,Deg2,myTolerance,myTolerance, | |
1613 | Standard_True); | |
1614 | ||
1615 | if(Fit.IsAllApproximated()) { | |
1616 | Standard_Integer i; | |
1617 | Standard_Integer NbCurves = Fit.NbMultiCurves(); | |
1618 | Standard_Integer MaxDeg = 0; | |
1619 | // To transform the MultiCurve into BSpline, it is required that all | |
1620 | // Bezier constituing it have the same degree -> Calculation of MaxDeg | |
1621 | Standard_Integer NbPoles = 1; | |
1622 | for (i = 1; i <= NbCurves; i++) { | |
1623 | Standard_Integer Deg = Fit.Value(i).Degree(); | |
1624 | MaxDeg = Max ( MaxDeg, Deg); | |
1625 | } | |
1626 | ||
1627 | NbPoles = MaxDeg * NbCurves + 1; //Tops on the BSpline | |
1628 | TColgp_Array1OfPnt2d Poles( 1, NbPoles); | |
1629 | ||
1630 | TColgp_Array1OfPnt2d TempPoles( 1, MaxDeg + 1);//to augment the degree | |
1631 | ||
1632 | TColStd_Array1OfReal Knots( 1, NbCurves + 1); //Nodes of the BSpline | |
1633 | ||
1634 | Standard_Integer Compt = 1; | |
1635 | for (i = 1; i <= NbCurves; i++) { | |
1636 | Fit.Parameters(i, Knots(i), Knots(i+1)); | |
1637 | AppParCurves_MultiCurve MC = Fit.Value( i); //Load the Ith Curve | |
1638 | TColgp_Array1OfPnt2d Poles2d( 1, MC.Degree() + 1);//Retrieve the tops | |
1639 | MC.Curve(1, Poles2d); | |
1640 | ||
1641 | //Eventual augmentation of the degree | |
1642 | Standard_Integer Inc = MaxDeg - MC.Degree(); | |
1643 | if ( Inc > 0) { | |
1644 | // BSplCLib::IncreaseDegree( Inc, Poles2d, PLib::NoWeights(), | |
1645 | BSplCLib::IncreaseDegree( MaxDeg, Poles2d, PLib::NoWeights(), | |
1646 | TempPoles, PLib::NoWeights()); | |
1647 | //update of tops of the PCurve | |
1648 | for (Standard_Integer j = 1 ; j <= MaxDeg + 1; j++) { | |
1649 | Poles.SetValue( Compt, TempPoles( j)); | |
1650 | Compt++; | |
1651 | } | |
1652 | } | |
1653 | else { | |
1654 | //update of tops of the PCurve | |
1655 | for (Standard_Integer j = 1 ; j <= MaxDeg + 1; j++) { | |
1656 | Poles.SetValue( Compt, Poles2d( j)); | |
1657 | Compt++; | |
1658 | } | |
1659 | } | |
1660 | ||
1661 | Compt--; | |
1662 | } | |
1663 | ||
1664 | //update of fields of ProjLib_Approx | |
1665 | Standard_Integer NbKnots = NbCurves + 1; | |
1666 | ||
1667 | // The start and end nodes are not correct : Cf: opening of the interval | |
86eff19e J |
1668 | //Knots( 1) -= 1.e-9; |
1669 | //Knots(NbKnots) += 1.e-9; | |
7fd59977 | 1670 | |
1671 | ||
1672 | TColStd_Array1OfInteger Mults( 1, NbKnots); | |
1673 | Mults.Init(MaxDeg); | |
1674 | Mults.SetValue( 1, MaxDeg + 1); | |
1675 | Mults.SetValue(NbKnots, MaxDeg + 1); | |
1676 | myProjIsDone = Standard_True; | |
1677 | Handle(Geom2d_BSplineCurve) Dummy = | |
1678 | new Geom2d_BSplineCurve(Poles,Knots,Mults,MaxDeg); | |
1679 | ||
1680 | // try to smoother the Curve GeomAbs_C1. | |
1681 | ||
1682 | Standard_Boolean OK = Standard_True; | |
1683 | ||
1684 | for (Standard_Integer ij = 2; ij < NbKnots; ij++) { | |
1685 | OK = OK && Dummy->RemoveKnot(ij,MaxDeg-1,Tol3d); //OCC217 | |
1686 | //OK = OK && Dummy->RemoveKnot(ij,MaxDeg-1,myTolerance); | |
1687 | } | |
1688 | #ifdef DEB | |
1689 | if (!OK) { | |
1690 | cout << "ProjLib_ComputeApproxOnPolarSurface : Smoothing echoue"<<endl; | |
1691 | } | |
1692 | #endif | |
1693 | return Dummy; | |
1694 | } | |
1695 | return Handle(Geom2d_BSplineCurve)(); | |
1696 | } | |
1697 | ||
1698 | //======================================================================= | |
1699 | //function : BSpline | |
1700 | //purpose : | |
1701 | //======================================================================= | |
1702 | ||
1703 | Handle(Geom2d_BSplineCurve) | |
1704 | ProjLib_ComputeApproxOnPolarSurface::BSpline() const | |
1705 | ||
1706 | { | |
1707 | // Modified by Sergey KHROMOV - Thu Apr 18 11:16:46 2002 End | |
1708 | // Standard_NoSuchObject_Raise_if | |
1709 | // (!myProjIsDone, | |
1710 | // "ProjLib_ComputeApproxOnPolarSurface:BSpline"); | |
1711 | // Modified by Sergey KHROMOV - Thu Apr 18 11:16:47 2002 End | |
1712 | return myBSpline ; | |
1713 | } | |
1714 | ||
1715 | //======================================================================= | |
1716 | //function : Curve2d | |
1717 | //purpose : | |
1718 | //======================================================================= | |
1719 | ||
1720 | Handle(Geom2d_Curve) | |
1721 | ProjLib_ComputeApproxOnPolarSurface::Curve2d() const | |
1722 | ||
1723 | { | |
1724 | Standard_NoSuchObject_Raise_if | |
1725 | (!myProjIsDone, | |
1726 | "ProjLib_ComputeApproxOnPolarSurface:2ndCurve2d"); | |
1727 | return my2ndCurve ; | |
1728 | } | |
1729 | ||
1730 | ||
1731 | //======================================================================= | |
1732 | //function : IsDone | |
1733 | //purpose : | |
1734 | //======================================================================= | |
1735 | ||
1736 | Standard_Boolean ProjLib_ComputeApproxOnPolarSurface::IsDone() const | |
1737 | ||
1738 | { | |
1739 | return myProjIsDone; | |
1740 | } |