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b311480e | 1 | // Created on: 1995-06-06 |
2 | // Created by: Xavier BENVENISTE | |
3 | // Copyright (c) 1995-1999 Matra Datavision | |
4 | // Copyright (c) 1999-2012 OPEN CASCADE SAS | |
5 | // | |
6 | // The content of this file is subject to the Open CASCADE Technology Public | |
7 | // License Version 6.5 (the "License"). You may not use the content of this file | |
8 | // except in compliance with the License. Please obtain a copy of the License | |
9 | // at http://www.opencascade.org and read it completely before using this file. | |
10 | // | |
11 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
12 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
13 | // | |
14 | // The Original Code and all software distributed under the License is | |
15 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
16 | // Initial Developer hereby disclaims all such warranties, including without | |
17 | // limitation, any warranties of merchantability, fitness for a particular | |
18 | // purpose or non-infringement. Please see the License for the specific terms | |
19 | // and conditions governing the rights and limitations under the License. | |
20 | ||
7fd59977 | 21 | |
22 | // Modified by skv - Wed Jun 2 11:49:59 2004 OCC5898 | |
23 | ||
24 | #include <Approx_SameParameter.ixx> | |
25 | #include <TColStd_Array1OfReal.hxx> | |
26 | #include <BSplCLib.hxx> | |
27 | #include <Adaptor3d_CurveOnSurface.hxx> | |
28 | #include <Geom2dAdaptor_Curve.hxx> | |
29 | #include <Geom2dAdaptor_HCurve.hxx> | |
30 | #include <GeomAdaptor_Curve.hxx> | |
31 | #include <GeomAdaptor_HCurve.hxx> | |
32 | #include <GeomAdaptor_Surface.hxx> | |
33 | #include <GeomAdaptor_HSurface.hxx> | |
34 | //#include <GCPnts_UniformDeflection.hxx> | |
35 | #include <GCPnts_QuasiUniformDeflection.hxx> | |
36 | #include <Extrema_LocateExtPC.hxx> | |
37 | #include <AdvApprox_ApproxAFunction.hxx> | |
38 | #include <GeomLib_MakeCurvefromApprox.hxx> | |
39 | #include <Precision.hxx> | |
40 | ||
41 | #define MAX_ARRAY_SIZE 1000 // IFV, Jan 2000 | |
42 | ||
43 | #ifdef DEB | |
44 | #ifdef DRAW | |
45 | #include <DrawTrSurf.hxx> | |
46 | #endif | |
47 | #include <Geom2d_BSplineCurve.hxx> | |
48 | #include <stdio.h> | |
49 | static Standard_Boolean Voir = Standard_False; | |
50 | static Standard_Boolean AffichFw = Standard_False; | |
51 | static Standard_Integer NbCurve = 0; | |
52 | #endif | |
53 | // | |
0d969553 | 54 | // allows testing if Extrema produces correct results/ |
7fd59977 | 55 | |
56 | ||
57 | static void ProjectPointOnCurve(const Standard_Real InitValue, | |
58 | const gp_Pnt APoint, | |
59 | const Standard_Real Tolerance, | |
60 | const Standard_Integer NumIteration, | |
61 | const Adaptor3d_Curve& Curve, | |
62 | Standard_Boolean& Status, | |
63 | Standard_Real& Result) | |
64 | { | |
65 | Standard_Integer num_iter = 0, | |
66 | not_done = 1, | |
67 | ii ; | |
68 | ||
69 | gp_Pnt a_point ; | |
70 | gp_Vec vector, | |
71 | d1, | |
72 | d2 ; | |
73 | Standard_Real func, | |
74 | func_derivative, | |
75 | param = InitValue ; | |
76 | Status = Standard_False ; | |
77 | Standard_Real Toler = 1.0e-12; | |
78 | do { | |
79 | num_iter += 1 ; | |
80 | Curve.D2(param, | |
81 | a_point, | |
82 | d1, | |
83 | d2) ; | |
84 | for (ii = 1 ; ii <= 3 ; ii++) { | |
85 | vector.SetCoord(ii, APoint.Coord(ii) - a_point.Coord(ii)) ; | |
86 | } | |
87 | func = vector.Dot(d1) ; | |
88 | func_derivative = vector.Dot(d2) ; | |
89 | func_derivative -= d1.Dot(d1) ; | |
90 | if ( Abs(func) < Tolerance * d1.Magnitude()) { | |
91 | not_done = 0 ; | |
92 | Status = Standard_True ; | |
93 | } | |
94 | else | |
95 | { // fixing a bug PRO18577 : avoid divizion by zero | |
96 | if( Abs(func_derivative) > Toler ) { | |
97 | param -= func / func_derivative ; | |
98 | } | |
99 | param = Max(param,Curve.FirstParameter()) ; | |
100 | param = Min(param,Curve.LastParameter()) ; | |
101 | Status = Standard_True ; | |
102 | } | |
103 | } | |
104 | while (not_done && num_iter <= NumIteration) ; | |
105 | Result = param ; | |
106 | } | |
107 | ||
108 | ||
109 | ||
110 | //======================================================================= | |
111 | //class : Approx_SameParameter_Evaluator | |
112 | //purpose : | |
113 | //======================================================================= | |
114 | ||
115 | class Approx_SameParameter_Evaluator : public AdvApprox_EvaluatorFunction | |
116 | { | |
117 | public: | |
118 | Approx_SameParameter_Evaluator (const TColStd_Array1OfReal& theFlatKnots, | |
119 | const TColStd_Array1OfReal& thePoles, | |
120 | const Handle(Adaptor2d_HCurve2d)& theHCurve2d) | |
121 | : FlatKnots(theFlatKnots), Poles(thePoles), HCurve2d(theHCurve2d) {} | |
122 | ||
123 | virtual void Evaluate (Standard_Integer *Dimension, | |
124 | Standard_Real StartEnd[2], | |
125 | Standard_Real *Parameter, | |
126 | Standard_Integer *DerivativeRequest, | |
127 | Standard_Real *Result, // [Dimension] | |
128 | Standard_Integer *ErrorCode); | |
129 | ||
130 | private: | |
131 | const TColStd_Array1OfReal& FlatKnots; | |
132 | const TColStd_Array1OfReal& Poles; | |
133 | Handle(Adaptor2d_HCurve2d) HCurve2d; | |
134 | }; | |
135 | ||
136 | void Approx_SameParameter_Evaluator::Evaluate (Standard_Integer *,/*Dimension*/ | |
137 | Standard_Real /*StartEnd*/[2], | |
138 | Standard_Real *Parameter, | |
139 | Standard_Integer *DerivativeRequest, | |
140 | Standard_Real *Result, | |
141 | Standard_Integer *ReturnCode) | |
142 | { | |
143 | gp_Pnt2d Point ; | |
144 | gp_Vec2d Vector ; | |
145 | Standard_Integer extrap_mode[2] ; | |
146 | extrap_mode[0] = extrap_mode[1] = 3; | |
147 | Standard_Real eval_result[2] ; | |
148 | Standard_Real *PolesArray = | |
149 | (Standard_Real *) &Poles(Poles.Lower()) ; | |
150 | // | |
151 | // evaluate the 1D bspline that represents the change in parameterization | |
152 | // | |
153 | BSplCLib::Eval(*Parameter, | |
154 | Standard_False, | |
155 | *DerivativeRequest, | |
156 | extrap_mode[0], | |
157 | 3, | |
158 | FlatKnots, | |
159 | 1, | |
160 | PolesArray[0], | |
161 | eval_result[0]) ; | |
162 | ||
163 | ||
164 | if (*DerivativeRequest == 0){ | |
165 | HCurve2d->D0(eval_result[0],Point); | |
166 | Point.Coord(Result[0],Result[1]); | |
167 | } | |
168 | else if (*DerivativeRequest == 1){ | |
169 | HCurve2d->D1(eval_result[0], Point, Vector); | |
170 | Vector.Multiply(eval_result[1]); | |
171 | Vector.Coord(Result[0],Result[1]); | |
172 | } | |
173 | ReturnCode[0] = 0 ; | |
174 | } | |
175 | ||
176 | static Standard_Real ComputeTolReached(const Handle(Adaptor3d_HCurve)& c3d, | |
177 | const Adaptor3d_CurveOnSurface& cons, | |
178 | const Standard_Integer nbp) | |
179 | { | |
180 | Standard_Real d2 = 0.; | |
181 | Standard_Integer nn = nbp; | |
182 | Standard_Real unsurnn = 1./nn; | |
183 | Standard_Real first = c3d->FirstParameter(); | |
184 | Standard_Real last = c3d->LastParameter(); | |
185 | for(Standard_Integer i = 0; i <= nn; i++){ | |
186 | Standard_Real t = unsurnn*i; | |
187 | Standard_Real u = first*(1.-t) + last*t; | |
188 | gp_Pnt Pc3d = c3d->Value(u); | |
189 | gp_Pnt Pcons = cons.Value(u); | |
190 | if (Precision::IsInfinite(Pcons.X()) || | |
191 | Precision::IsInfinite(Pcons.Y()) || | |
192 | Precision::IsInfinite(Pcons.Z())) { | |
193 | d2=Precision::Infinite(); | |
194 | break; | |
195 | } | |
196 | Standard_Real temp = Pc3d.SquareDistance(Pcons); | |
197 | if(temp > d2) d2 = temp; | |
198 | } | |
199 | d2 = 1.5*sqrt(d2); | |
200 | if(d2<1.e-7) d2 = 1.e-7; | |
201 | return d2; | |
202 | } | |
203 | ||
204 | static Standard_Boolean Check(const TColStd_Array1OfReal& FlatKnots, | |
205 | const TColStd_Array1OfReal& Poles, | |
206 | const Standard_Integer nbp, | |
207 | const TColStd_Array1OfReal& pc3d, | |
208 | // const TColStd_Array1OfReal& pcons, | |
209 | const TColStd_Array1OfReal& , | |
210 | const Handle(Adaptor3d_HCurve)& c3d, | |
211 | const Adaptor3d_CurveOnSurface& cons, | |
212 | Standard_Real& tol, | |
213 | const Standard_Real oldtol) | |
214 | { | |
215 | Standard_Real d = tol; | |
216 | Standard_Integer extrap_mode[2] ; | |
217 | extrap_mode[0] = extrap_mode[1] = 3; | |
218 | Standard_Integer i; | |
219 | #ifdef DEB | |
220 | if (Voir) { | |
221 | cout<<endl; | |
0d969553 Y |
222 | cout<<"Control the change of variable : "<<endl; |
223 | cout<<"yawn mesured by projection : "<<d<<endl; | |
224 | cout<<"Number of points : "<<nbp<<endl; | |
7fd59977 | 225 | } |
226 | #endif | |
227 | #if 0 | |
228 | Standard_Real glis = 0., dglis = 0.; | |
229 | for(i = 1; i <= nbp; i++){ | |
230 | Standard_Real tc3d = pc3d(i); | |
231 | gp_Pnt Pc3d = c3d->Value(tc3d); | |
232 | Standard_Real tcons; | |
233 | BSplCLib::Eval(tc3d,Standard_False,0,extrap_mode[0], | |
234 | 3,FlatKnots,1, (Standard_Real&)Poles(1),tcons); | |
235 | gp_Pnt Pcons = cons.Value(tcons); | |
236 | Standard_Real temp = Pc3d.SquareDistance(Pcons); | |
237 | if(temp >= dglis) dglis = temp; | |
238 | temp = Abs(tcons-pcons(i)); | |
239 | if(temp >= glis) glis = temp; | |
240 | } | |
241 | dglis = sqrt(dglis); | |
242 | #ifdef DEB | |
243 | if ( Voir) { | |
0d969553 Y |
244 | cout<<"shift of parameter to the imposed points : "<<glis<<endl; |
245 | cout<<"shift distance at the imposed points : "<<dglis<<endl; | |
7fd59977 | 246 | } |
247 | #endif | |
248 | dglis = 0.; | |
249 | for(i = 1; i < nbp; i++){ | |
250 | Standard_Real tc3d = 0.5*(pc3d(i)+pc3d(i+1)); | |
251 | gp_Pnt Pc3d = c3d->Value(tc3d); | |
252 | Standard_Real tcons; | |
253 | BSplCLib::Eval(tc3d,Standard_False,0,extrap_mode[0], | |
254 | 3,FlatKnots,1, (Standard_Real&)Poles(1),tcons); | |
255 | gp_Pnt Pcons = cons.Value(tcons); | |
256 | Standard_Real temp = Pc3d.SquareDistance(Pcons); | |
257 | if(temp >= dglis) dglis = temp; | |
258 | } | |
259 | dglis = sqrt(dglis); | |
260 | #ifdef DEB | |
261 | if (Voir) | |
262 | cout<<"distance de glissement en milieu d intervals : "<<dglis<<endl; | |
263 | #endif | |
264 | #endif | |
265 | ||
266 | Standard_Real d2 = 0.; | |
267 | Standard_Integer nn = 2*nbp; | |
268 | Standard_Real unsurnn = 1./nn; | |
269 | // Modified by skv - Wed Jun 2 11:49:59 2004 OCC5898 Begin | |
270 | // Correction of the interval of valid values. This condition has no sensible | |
271 | // grounds. But it is better then the old one (which is commented out) because | |
272 | // it fixes the bug OCC5898. To develop more or less sensible criterion it is | |
273 | // necessary to deeply investigate this problem which is not possible in frames | |
274 | // of debugging. | |
275 | ||
276 | // Standard_Real firstborne= 2*pc3d(1)-pc3d(nbp); | |
277 | // Standard_Real lastborne= 2*pc3d(nbp)-pc3d(1); | |
278 | Standard_Real firstborne= 3.*pc3d(1) - 2.*pc3d(nbp); | |
279 | Standard_Real lastborne = 3.*pc3d(nbp) - 2.*pc3d(1); | |
280 | // Modified by skv - Wed Jun 2 11:50:03 2004 OCC5898 End | |
281 | for(i = 0; i <= nn; i++){ | |
282 | Standard_Real t = unsurnn*i; | |
283 | Standard_Real tc3d = pc3d(1)*(1.-t) + pc3d(nbp)*t; | |
284 | gp_Pnt Pc3d = c3d->Value(tc3d); | |
285 | Standard_Real tcons; | |
286 | BSplCLib::Eval(tc3d,Standard_False,0,extrap_mode[0], | |
287 | 3,FlatKnots,1, (Standard_Real&)Poles(1),tcons); | |
288 | if (tcons < firstborne || tcons > lastborne) { | |
289 | tol=Precision::Infinite(); | |
290 | return Standard_False; | |
291 | } | |
292 | gp_Pnt Pcons = cons.Value(tcons); | |
293 | Standard_Real temp = Pc3d.SquareDistance(Pcons); | |
294 | if(temp > d2) d2 = temp; | |
295 | } | |
296 | tol = sqrt(d2); | |
297 | #ifdef DEB | |
298 | if (Voir) | |
0d969553 | 299 | cout<<"distance max on "<<nn<<" points : "<<tol<<endl<<endl; |
7fd59977 | 300 | #endif |
301 | return ((tol <= d) || (tol > 0.8 * oldtol)); | |
302 | } | |
303 | ||
304 | ||
305 | //======================================================================= | |
306 | //function : Approx_SameParameter | |
307 | //purpose : | |
308 | //======================================================================= | |
309 | ||
310 | Approx_SameParameter::Approx_SameParameter(const Handle(Geom_Curve)& C3D, | |
311 | const Handle(Geom2d_Curve)& C2D, | |
312 | const Handle(Geom_Surface)& S, | |
313 | const Standard_Real Tol): | |
314 | mySameParameter(Standard_True), myDone(Standard_False) | |
315 | { | |
316 | myHCurve2d = new Geom2dAdaptor_HCurve(C2D); | |
317 | myC3d = new GeomAdaptor_HCurve(C3D); | |
318 | mySurf = new GeomAdaptor_HSurface(S); | |
319 | Build(Tol); | |
320 | } | |
321 | ||
322 | ||
323 | //======================================================================= | |
324 | //function : Approx_SameParameter | |
325 | //purpose : | |
326 | //======================================================================= | |
327 | ||
328 | Approx_SameParameter::Approx_SameParameter(const Handle(Adaptor3d_HCurve)& C3D, | |
329 | const Handle(Geom2d_Curve)& C2D, | |
330 | const Handle(Adaptor3d_HSurface)& S, | |
331 | const Standard_Real Tol): | |
332 | mySameParameter(Standard_True), myDone(Standard_False) | |
333 | { | |
334 | myC3d = C3D; | |
335 | mySurf = S; | |
336 | myHCurve2d = new Geom2dAdaptor_HCurve(C2D); | |
337 | Build(Tol); | |
338 | } | |
339 | ||
340 | ||
341 | //======================================================================= | |
342 | //function : Approx_SameParameter | |
343 | //purpose : | |
344 | //======================================================================= | |
345 | ||
346 | Approx_SameParameter::Approx_SameParameter(const Handle(Adaptor3d_HCurve)& C3D, | |
347 | const Handle(Adaptor2d_HCurve2d)& C2D, | |
348 | const Handle(Adaptor3d_HSurface)& S, | |
349 | const Standard_Real Tol): | |
350 | mySameParameter(Standard_True), myDone(Standard_False) | |
351 | { | |
352 | myC3d = C3D; | |
353 | mySurf = S; | |
354 | myHCurve2d = C2D; | |
355 | Build(Tol); | |
356 | } | |
357 | ||
358 | ||
359 | //======================================================================= | |
360 | //function : Build | |
361 | //purpose : | |
362 | //======================================================================= | |
363 | ||
364 | void Approx_SameParameter::Build(const Standard_Real Tolerance) | |
365 | { | |
366 | Standard_Integer ii ; | |
367 | Adaptor3d_CurveOnSurface CurveOnSurface(myHCurve2d,mySurf); | |
368 | Standard_Real fcons = CurveOnSurface.FirstParameter(); | |
369 | Standard_Real lcons = CurveOnSurface.LastParameter(); | |
370 | Standard_Real fc3d = myC3d->FirstParameter(); | |
371 | Standard_Real lc3d = myC3d->LastParameter(); | |
372 | ||
373 | GeomAbs_Shape Continuity = myHCurve2d->Continuity(); | |
374 | ||
375 | if(Continuity > GeomAbs_C1) Continuity = GeomAbs_C1; | |
376 | ||
0d969553 Y |
377 | //Control tangents at the extremities to know if the |
378 | //reparametring is possible and calculate the tangents | |
379 | //at the extremities of the function of change of variable. | |
d20d815b | 380 | Standard_Real tangent[2] = { 0.0, 0.0 }; |
7fd59977 | 381 | gp_Pnt Pcons,Pc3d; |
382 | gp_Vec Vcons,Vc3d; | |
383 | ||
384 | Standard_Real Tol = Tolerance; | |
385 | Standard_Real Tol2 = Tol * Tol; | |
386 | Standard_Real Tolp = myC3d->Resolution(Tol), deltamin = 50*Tolp; | |
387 | ||
388 | Standard_Real besttol2 = Tol2; | |
389 | Standard_Boolean extrok = 0; | |
390 | ||
391 | extrok = 1; | |
392 | CurveOnSurface.D1(fcons,Pcons,Vcons); | |
393 | myC3d->D1(fc3d,Pc3d,Vc3d); | |
394 | Standard_Real dist2 = Pcons.SquareDistance(Pc3d); | |
395 | Standard_Real dmax2 = dist2; | |
396 | ||
397 | Standard_Real magVcons = Vcons.Magnitude(); | |
398 | if (magVcons > 1.e-12){ | |
399 | tangent[0] = Vc3d.Magnitude() / magVcons; | |
400 | } | |
401 | else extrok = 0; | |
402 | ||
403 | CurveOnSurface.D1(lcons,Pcons,Vcons); | |
404 | myC3d->D1(lc3d,Pc3d,Vc3d); | |
405 | dist2 = Pcons.SquareDistance(Pc3d); | |
406 | ||
407 | if(dist2 > dmax2) dmax2 = dist2; | |
408 | magVcons = Vcons.Magnitude(); | |
409 | if (magVcons > 1.e-12){ | |
410 | tangent[1] = Vc3d.Magnitude() / magVcons; | |
411 | } | |
412 | else extrok = 0; | |
413 | ||
414 | ||
415 | if(dmax2 > besttol2) besttol2 = dmax2; | |
416 | ||
0d969553 Y |
417 | //Take a multiple of the sample pof CheckShape, |
418 | //at least the control points will be correct. No comment!!! | |
7fd59977 | 419 | |
420 | Standard_Integer NCONTROL = 22; | |
421 | #ifdef DEB | |
422 | Standard_Integer nbcoups = 0; | |
423 | #endif | |
424 | ||
425 | Standard_Boolean interpolok = 0; | |
426 | Standard_Real tolsov = 1.e200; | |
0d969553 Y |
427 | //Take parameters with constant step on the curve on surface |
428 | //and on curve 3d. | |
7fd59977 | 429 | Standard_Real deltacons = lcons - fcons; |
430 | deltacons /= (NCONTROL); | |
431 | Standard_Real deltac3d = lc3d - fc3d; | |
432 | deltac3d /= (NCONTROL); | |
433 | ||
434 | Standard_Real wcons = fcons; | |
435 | Standard_Real wc3d = fc3d; | |
436 | ||
437 | Standard_Real qpcons[MAX_ARRAY_SIZE], qnewpcons[MAX_ARRAY_SIZE], | |
438 | qpc3d[MAX_ARRAY_SIZE], qnewpc3d[MAX_ARRAY_SIZE]; | |
439 | Standard_Real * pcons = qpcons; Standard_Real * newpcons = qnewpcons; | |
440 | Standard_Real * pc3d = qpc3d; Standard_Real * newpc3d = qnewpc3d; | |
441 | ||
442 | for ( ii = 0 ; ii < NCONTROL; ii++) { | |
443 | pcons[ii] = wcons; | |
444 | pc3d[ii] = wc3d; | |
445 | wcons += deltacons; | |
446 | wc3d += deltac3d; | |
447 | } | |
448 | pcons[NCONTROL] = lcons; | |
449 | pc3d[NCONTROL] = lc3d; | |
450 | ||
451 | Standard_Integer New_NCONTROL = NCONTROL; | |
452 | if(Continuity < GeomAbs_C1) { | |
453 | Standard_Integer NbInt = myHCurve2d->NbIntervals(GeomAbs_C1) + 1; | |
454 | TColStd_Array1OfReal Param_de_decoupeC1 (1, NbInt); | |
455 | myHCurve2d->Intervals(Param_de_decoupeC1, GeomAbs_C1); | |
456 | TColStd_SequenceOfReal new_par; | |
457 | Standard_Integer inter = 1; | |
458 | ii =1; | |
459 | new_par.Append(fcons); | |
460 | ||
461 | while(Param_de_decoupeC1(inter) <= fcons + deltamin) inter++; | |
462 | while(Param_de_decoupeC1(NbInt) >= lcons - deltamin) NbInt--; | |
463 | ||
464 | while(inter <= NbInt || ii < NCONTROL) { | |
465 | if(Param_de_decoupeC1(inter) < pcons[ii]) { | |
466 | new_par.Append(Param_de_decoupeC1(inter)); | |
467 | if((pcons[ii] - Param_de_decoupeC1(inter)) <= deltamin) { | |
468 | ii++; | |
469 | if(ii > NCONTROL) {ii = NCONTROL;} | |
470 | } | |
471 | inter++; | |
472 | } | |
473 | else { | |
474 | if((Param_de_decoupeC1(inter) - pcons[ii]) > deltamin) { | |
475 | new_par.Append(pcons[ii]); | |
476 | } | |
477 | ii++; | |
478 | } | |
479 | } | |
480 | ||
481 | new_par.Append(lcons); | |
482 | New_NCONTROL = new_par.Length() - 1; | |
483 | //simple protection if New_NCONTROL > allocated elements in array | |
484 | if (New_NCONTROL > MAX_ARRAY_SIZE) { | |
485 | mySameParameter = Standard_False; | |
486 | return; | |
487 | } | |
488 | for(ii = 1; ii <= New_NCONTROL; ii++){ | |
489 | pcons[ii] = pc3d[ii] = new_par.Value(ii + 1); | |
490 | } | |
491 | pc3d[New_NCONTROL] = lc3d; | |
492 | } | |
493 | ||
494 | ||
495 | Extrema_LocateExtPC Projector; | |
496 | Projector.Initialize(myC3d->Curve(),fc3d,lc3d,Tol); | |
497 | ||
498 | Standard_Integer count = 1; | |
499 | Standard_Real previousp = fc3d, initp=0, curp;//, deltamin = 50*Tolp; | |
500 | Standard_Real bornesup = lc3d - deltamin; | |
501 | Standard_Boolean projok = 0, | |
502 | use_parameter ; | |
503 | for (ii = 1; ii < New_NCONTROL; ii++){ | |
504 | CurveOnSurface.D0(pcons[ii],Pcons); | |
505 | myC3d->D0(pc3d[ii],Pc3d); | |
506 | dist2 = Pcons.SquareDistance(Pc3d); | |
507 | use_parameter = (dist2 <= Tol2 && (pc3d[ii] > pc3d[count-1] + deltamin)) ; | |
508 | if(use_parameter) { | |
509 | ||
510 | if(dist2 > dmax2) dmax2 = dist2; | |
511 | initp = previousp = pc3d[count] = pc3d[ii]; | |
512 | pcons[count] = pcons[ii]; | |
513 | count++; | |
514 | } | |
515 | else { | |
516 | if(!projok) initp = pc3d[ii]; | |
517 | projok = mySameParameter = Standard_False; | |
518 | Projector.Perform(Pcons, initp); | |
519 | if (Projector.IsDone()) { | |
520 | curp = Projector.Point().Parameter(); | |
521 | Standard_Real dist_2 = Projector.SquareDistance(); | |
522 | if(dist_2 > besttol2) besttol2 = dist_2; | |
523 | projok = 1; | |
524 | } | |
525 | else { | |
526 | ProjectPointOnCurve(initp,Pcons,Tol,30,myC3d->Curve(),projok,curp); | |
527 | } | |
528 | if(projok){ | |
529 | if(curp > previousp + deltamin && curp < bornesup){ | |
530 | initp = previousp = pc3d[count] = curp; | |
531 | pcons[count] = pcons[ii]; | |
532 | count++; | |
533 | } | |
534 | } | |
535 | else { | |
536 | #ifdef DEB | |
537 | // JAG | |
538 | cout << "Projection not done" << endl; | |
539 | #endif | |
540 | } | |
541 | } | |
542 | } | |
543 | if(mySameParameter){ | |
544 | myTolReached = 1.5*sqrt(dmax2); | |
545 | return; | |
546 | } | |
547 | ||
0d969553 | 548 | if(!extrok) { // If not already SameP and tangent to mill, abandon. |
7fd59977 | 549 | mySameParameter = Standard_False; |
550 | #ifdef DEB | |
0d969553 | 551 | cout<<"SameParameter problem : zero tangent to extremities"<<endl; |
7fd59977 | 552 | #endif |
553 | return; | |
554 | } | |
555 | ||
556 | pcons[count] = lcons; | |
557 | pc3d[count] = lc3d; | |
558 | ||
559 | #ifdef DEB | |
560 | if (AffichFw) { | |
561 | char Name[17]; | |
562 | Name[0]='\0'; | |
563 | TColgp_Array1OfPnt2d DEBP2d (0,count); | |
564 | TColStd_Array1OfInteger DEBMults(0,count); | |
565 | DEBMults.Init(1); DEBMults(0) = 2; DEBMults(count) = 2; | |
566 | TColStd_Array1OfReal DEBKnots(0,count); | |
567 | for (Standard_Integer DEBi = 0; DEBi <= count; DEBi++) { | |
568 | DEBKnots(DEBi) = DEBi; | |
569 | DEBP2d (DEBi) = gp_Pnt2d(pc3d[DEBi],pcons[DEBi]); | |
570 | } | |
571 | Handle(Geom2d_BSplineCurve) DEBBS = | |
572 | new Geom2d_BSplineCurve(DEBP2d,DEBKnots,DEBMults,1); | |
91322f44 | 573 | Sprintf(Name,"DEBC2d_%d",++NbCurve); |
7fd59977 | 574 | #ifdef DRAW |
575 | DrawTrSurf::Set(Name,DEBBS); | |
576 | #endif | |
577 | } | |
578 | #endif | |
579 | ||
580 | while(!interpolok){ | |
0d969553 | 581 | // The tables and their limits for the interpolation. |
7fd59977 | 582 | Standard_Integer num_knots = count + 7; |
583 | Standard_Integer num_poles = count + 3; | |
584 | TColStd_Array1OfReal Paramc3d(*pc3d,1,count+1); | |
585 | TColStd_Array1OfReal Paramcons(*pcons,1,count+1); | |
586 | TColStd_Array1OfInteger ContactOrder(1,num_poles) ; | |
587 | TColStd_Array1OfReal Poles(1,num_poles) ; | |
588 | TColStd_Array1OfReal InterpolationParameters(1,num_poles) ; | |
589 | TColStd_Array1OfReal FlatKnots(1,num_knots) ; | |
590 | ||
0d969553 | 591 | // Fill tables taking attention to end values. |
7fd59977 | 592 | ContactOrder.Init(0); |
593 | ContactOrder(2) = ContactOrder(num_poles - 1) = 1; | |
594 | ||
595 | FlatKnots(1) = FlatKnots(2) = FlatKnots(3) = FlatKnots(4) = fc3d; | |
596 | FlatKnots(num_poles + 1) = FlatKnots(num_poles + 2) = | |
597 | FlatKnots(num_poles + 3) = FlatKnots(num_poles + 4) = lc3d; | |
598 | ||
599 | Poles(1) = fcons; Poles(num_poles) = lcons; | |
600 | Poles(2) = tangent[0]; Poles(num_poles - 1) = tangent[1]; | |
601 | ||
602 | InterpolationParameters(1) = InterpolationParameters(2) = fc3d; | |
603 | InterpolationParameters(num_poles - 1) = InterpolationParameters(num_poles) = lc3d; | |
604 | ||
605 | for (ii = 3; ii <= num_poles - 2; ii++) { | |
606 | Poles(ii) = Paramcons(ii - 1); | |
607 | InterpolationParameters(ii) = FlatKnots(ii+2) = Paramc3d(ii - 1); | |
608 | } | |
609 | Standard_Integer inversion_problem; | |
610 | BSplCLib::Interpolate(3,FlatKnots,InterpolationParameters,ContactOrder, | |
611 | 1,Poles(1),inversion_problem); | |
612 | if(inversion_problem) { | |
613 | Standard_ConstructionError::Raise(); | |
614 | } | |
615 | ||
616 | //------------------------------------------- | |
617 | #ifdef DEB | |
618 | if (AffichFw) { | |
619 | nbcoups ++; | |
620 | char Name[17]; | |
621 | Name[0] = '\0'; | |
622 | Standard_Integer nnn = 100; | |
623 | TColgp_Array1OfPnt2d DEBP2d (0,nnn); | |
624 | TColStd_Array1OfInteger DEBMults(0,nnn); | |
625 | DEBMults.Init(1); DEBMults(0) = 2; DEBMults(nnn) = 2; | |
626 | TColStd_Array1OfReal DEBKnots(0,nnn); | |
627 | Standard_Real du = (lc3d - fc3d) / nnn; | |
628 | Standard_Real u3d = fc3d; | |
629 | Standard_Integer extrap_mode[2] ; | |
630 | extrap_mode[0] = extrap_mode[1] = 3; | |
631 | Standard_Real eval_result[2] ; | |
632 | Standard_Integer DerivativeRequest = 0; | |
633 | Standard_Real *PolesArray = | |
634 | (Standard_Real *) &Poles(Poles.Lower()) ; | |
635 | ||
636 | for (Standard_Integer DEBi = 0; DEBi <= nnn; DEBi++) { | |
637 | DEBKnots(DEBi) = DEBi; | |
638 | BSplCLib::Eval(u3d, | |
639 | Standard_False, | |
640 | DerivativeRequest, | |
641 | extrap_mode[0], | |
642 | 3, | |
643 | FlatKnots, | |
644 | 1, | |
645 | PolesArray[0], | |
646 | eval_result[0]) ; | |
647 | ||
648 | DEBP2d (DEBi) = gp_Pnt2d(u3d,eval_result[0]); | |
649 | u3d += du; | |
650 | } | |
651 | ||
652 | Handle(Geom2d_BSplineCurve) DEBBS = | |
653 | new Geom2d_BSplineCurve(DEBP2d,DEBKnots,DEBMults,1); | |
91322f44 | 654 | Sprintf(Name,"DEBC2d_%d_%d",NbCurve,nbcoups ); |
7fd59977 | 655 | #ifdef DRAW |
656 | DrawTrSurf::Set(Name,DEBBS); | |
657 | #endif | |
658 | } | |
659 | #endif | |
660 | //------------------------------------------- | |
661 | ||
662 | //------------------------------------------- | |
663 | // Test if par2d(par3d) is monotonous function or not ----- IFV, Jan 2000 | |
664 | // and try to insert new point to improve BSpline interpolation | |
665 | ||
666 | Standard_Integer extrap_mode[2] ; | |
667 | extrap_mode[0] = extrap_mode[1] = 3; | |
668 | Standard_Real eval_result[2] ; | |
669 | Standard_Integer DerivativeRequest = 0; | |
670 | Standard_Real *PolesArray = | |
671 | (Standard_Real *) &Poles(Poles.Lower()) ; | |
672 | ||
673 | Standard_Integer newcount = 0; | |
674 | for (ii = 0; ii < count; ii++) { | |
675 | ||
676 | newpcons[newcount] = pcons[ii]; | |
677 | newpc3d[newcount] = pc3d[ii]; | |
678 | newcount++; | |
679 | ||
680 | if(count - ii + newcount == MAX_ARRAY_SIZE) continue; | |
681 | ||
682 | BSplCLib::Eval(.5*(pc3d[ii]+pc3d[ii+1]), Standard_False, DerivativeRequest, | |
683 | extrap_mode[0], 3, FlatKnots, 1, PolesArray[0], eval_result[0]); | |
684 | ||
685 | if(eval_result[0] < pcons[ii] || eval_result[0] > pcons[ii+1]) { | |
686 | Standard_Real ucons = 0.5*(pcons[ii]+pcons[ii+1]); | |
687 | Standard_Real uc3d = 0.5*(pc3d[ii]+pc3d[ii+1]); | |
688 | ||
689 | CurveOnSurface.D0(ucons,Pcons); | |
690 | Projector.Perform(Pcons, uc3d); | |
691 | if (Projector.IsDone()) { | |
692 | curp = Projector.Point().Parameter(); | |
693 | Standard_Real dist_2 = Projector.SquareDistance(); | |
694 | if(dist_2 > besttol2) besttol2 = dist_2; | |
695 | projok = 1; | |
696 | } | |
697 | else { | |
698 | ProjectPointOnCurve(uc3d,Pcons,Tol,30,myC3d->Curve(),projok,curp); | |
699 | } | |
700 | if(projok){ | |
701 | if(curp > pc3d[ii] + deltamin && curp < pc3d[ii+1] - deltamin){ | |
702 | newpc3d[newcount] = curp; | |
703 | newpcons[newcount] = ucons; | |
704 | newcount ++; | |
705 | } | |
706 | } | |
707 | else { | |
708 | #ifdef DEB | |
709 | // JAG | |
710 | cout << "Projection not done" << endl; | |
711 | #endif | |
712 | } | |
713 | } | |
714 | ||
715 | } | |
716 | ||
717 | newpc3d[newcount] = pc3d[count]; | |
718 | newpcons[newcount] = pcons[count]; | |
719 | Standard_Real * temp; | |
720 | temp = pc3d; | |
721 | pc3d = newpc3d; | |
722 | newpc3d = temp; | |
723 | temp = pcons; | |
724 | pcons = newpcons; | |
725 | newpcons = temp; | |
726 | ||
727 | if((count != newcount) && newcount < MAX_ARRAY_SIZE) { count = newcount; continue;} | |
728 | ||
729 | count = newcount; | |
730 | ||
731 | Standard_Real algtol = sqrt(besttol2); | |
732 | ||
733 | interpolok = Check (FlatKnots, Poles, count+1, Paramc3d, Paramcons, | |
734 | myC3d, CurveOnSurface, algtol, tolsov); | |
735 | ||
736 | if (Precision::IsInfinite(algtol)) { | |
737 | mySameParameter = Standard_False; | |
738 | #ifdef DEB | |
0d969553 | 739 | cout<<"SameParameter problem : function of interpolation of parametration at mills !!"<<endl; |
7fd59977 | 740 | #endif |
741 | return; | |
742 | } | |
743 | ||
744 | tolsov = algtol; | |
745 | ||
746 | interpolok = (interpolok || count >= MAX_ARRAY_SIZE); | |
747 | ||
748 | if(interpolok) { | |
749 | Standard_Real besttol = sqrt(besttol2); | |
750 | #ifdef DEB | |
751 | if (Voir) { | |
752 | if(algtol > besttol){ | |
0d969553 | 753 | cout<<"SameParameter : Tol can't be reached before approx"<<endl; |
7fd59977 | 754 | } |
755 | } | |
756 | #endif | |
757 | Handle(TColStd_HArray1OfReal) tol1d,tol2d,tol3d; | |
758 | tol1d = new TColStd_HArray1OfReal(1,2) ; | |
759 | tol1d->SetValue(1, mySurf->UResolution(besttol)); | |
760 | tol1d->SetValue(2, mySurf->VResolution(besttol)); | |
761 | ||
762 | Approx_SameParameter_Evaluator ev (FlatKnots, Poles, myHCurve2d); | |
763 | AdvApprox_ApproxAFunction anApproximator(2,0,0,tol1d,tol2d,tol3d,fc3d,lc3d, | |
764 | Continuity,11,40,ev); | |
765 | ||
766 | if (anApproximator.IsDone() || anApproximator.HasResult()) { | |
767 | GeomLib_MakeCurvefromApprox aCurveBuilder(anApproximator) ; | |
768 | myCurve2d = aCurveBuilder.Curve2dFromTwo1d(1,2) ; | |
769 | myHCurve2d = new Geom2dAdaptor_HCurve(myCurve2d); | |
770 | CurveOnSurface.Load(myHCurve2d); | |
771 | myTolReached = ComputeTolReached(myC3d,CurveOnSurface,NCONTROL); | |
772 | myDone = Standard_True; | |
773 | } | |
774 | } | |
775 | else { | |
776 | #ifdef DEB | |
777 | if (Voir) | |
0d969553 | 778 | cout<<"SameParameter : Not enough points, enrich"<<endl; |
7fd59977 | 779 | #endif |
780 | ||
781 | Standard_Integer newcount = 0; | |
782 | for(Standard_Integer n = 0; n < count; n++){ | |
783 | newpc3d[newcount] = pc3d[n]; | |
784 | newpcons[newcount] = pcons[n]; | |
785 | newcount ++; | |
786 | ||
787 | if(count - n + newcount == MAX_ARRAY_SIZE) continue; | |
788 | ||
789 | Standard_Real ucons = 0.5*(pcons[n]+pcons[n+1]); | |
790 | Standard_Real uc3d = 0.5*(pc3d[n]+pc3d[n+1]); | |
791 | ||
792 | CurveOnSurface.D0(ucons,Pcons); | |
793 | Projector.Perform(Pcons, uc3d); | |
794 | if (Projector.IsDone()) { | |
795 | curp = Projector.Point().Parameter(); | |
796 | Standard_Real dist_2 = Projector.SquareDistance(); | |
797 | if(dist_2 > besttol2) besttol2 = dist_2; | |
798 | projok = 1; | |
799 | } | |
800 | else { | |
801 | ProjectPointOnCurve(uc3d,Pcons,Tol,30,myC3d->Curve(),projok,curp); | |
802 | } | |
803 | if(projok){ | |
804 | if(curp > pc3d[n] + deltamin && curp < pc3d[n+1] - deltamin){ | |
805 | newpc3d[newcount] = curp; | |
806 | newpcons[newcount] = ucons; | |
807 | newcount ++; | |
808 | } | |
809 | } | |
810 | else { | |
811 | #ifdef DEB | |
812 | // JAG | |
813 | cout << "Projection not done" << endl; | |
814 | #endif | |
815 | } | |
816 | } | |
817 | newpc3d[newcount] = pc3d[count]; | |
818 | newpcons[newcount] = pcons[count]; | |
819 | Standard_Real * tempx; | |
820 | tempx = pc3d; | |
821 | pc3d = newpc3d; | |
822 | newpc3d = tempx; | |
823 | tempx = pcons; | |
824 | pcons = newpcons; | |
825 | newpcons = tempx; | |
826 | count = newcount; | |
827 | } | |
828 | } | |
829 | } |