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[occt.git] / src / BRepFill / BRepFill_CompatibleWires.cxx
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7fd59977 1// File: BRepFill_CompatibleWires.cxx
2// Created: Thu Jul 2 16:47:25 1998
3// Author: Joelle CHAUVET
4// <jct@sgi64>
5
6
7#include <BRepFill_CompatibleWires.ixx>
8
9#include <BRepAdaptor_Curve.hxx>
10
11#include <BRepFill.hxx>
12#include <BRepLib.hxx>
13#include <BRepLib_FindSurface.hxx>
14#include <BRepLib_MakeWire.hxx>
15#include <BRepLib_MakeEdge.hxx>
d7325741 16#include <BRepCheck_Wire.hxx>
7fd59977 17#include <BRepExtrema_DistShapeShape.hxx>
18#include <Bnd_Box.hxx>
19#include <BRepBndLib.hxx>
20#include <BRep_Builder.hxx>
21#include <BRep_Tool.hxx>
22#include <BRepTools_WireExplorer.hxx>
23#include <BRepLProp.hxx>
24#include <BRepGProp.hxx>
25#include <GProp_GProps.hxx>
26#include <GProp_PrincipalProps.hxx>
27#include <Geom_Surface.hxx>
28#include <Geom_Plane.hxx>
29#include <Precision.hxx>
30#include <TopAbs.hxx>
31#include <TopExp.hxx>
32#include <TopExp_Explorer.hxx>
33#include <TopoDS.hxx>
34#include <TopoDS_Wire.hxx>
35#include <TopTools_ListIteratorOfListOfShape.hxx>
36#include <TopTools_DataMapOfShapeListOfShape.hxx>
37#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
38#include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
39#include <TopTools_HSequenceOfShape.hxx>
40#include <TopTools_SequenceOfShape.hxx>
41#include <TopTools_ListOfShape.hxx>
42
43#include <gp.hxx>
44#include <gp_Vec.hxx>
45#include <gp_Ax2.hxx>
46#include <gp_Pln.hxx>
47#include <gp_Circ.hxx>
48#include <gp_Elips.hxx>
49#include <TColgp_HArray1OfVec.hxx>
50#include <TColgp_HArray1OfPnt.hxx>
51
52#include <TColStd_Array1OfInteger.hxx>
53#include <TColStd_Array1OfReal.hxx>
54#include <TColStd_SequenceOfReal.hxx>
55
56
57static void EdgesFromVertex (const TopoDS_Wire& W,
58 const TopoDS_Vertex& V,
59 TopoDS_Edge& E1,
60 TopoDS_Edge& E2)
61{
62 TopTools_IndexedDataMapOfShapeListOfShape Map;
63 TopExp::MapShapesAndAncestors(W,TopAbs_VERTEX,TopAbs_EDGE,Map);
64
65 const TopTools_ListOfShape& List = Map.FindFromKey(V);
66 TopoDS_Edge e1 = TopoDS::Edge(List.First());
67 TopoDS_Edge e2 = TopoDS::Edge(List. Last());
68
69 BRepTools_WireExplorer anExp;
70 Standard_Integer I1=0, I2=0, NE=0;
71
72 for(anExp.Init(W); anExp.More(); anExp.Next()) {
73 NE++;
74 const TopoDS_Edge& ECur = anExp.Current();
75 if (e1.IsSame(ECur)) {
76 I1 = NE;
77 }
78 if (e2.IsSame(ECur)) {
79 I2 = NE;
80 }
81 }
82
83 if (Abs(I2-I1)==1) {
b2342827 84 // consecutive numbers
7fd59977 85 if (I2==I1+1) {
86 E1 = e1;
87 E2 = e2;
88 }
89 else {
90 E1 = e2;
91 E2 = e1;
92 }
93 }
94 else {
b2342827 95 // non consecutive numbers on a closed wire
7fd59977 96 if (I1==1&&I2==NE) {
97 E1 = e2;
98 E2 = e1;
99 }
100 else {
101 E1 = e1;
102 E2 = e2;
103 }
104 }
105}
106
107
108static void SeqOfVertices (const TopoDS_Wire& W,
109 TopTools_SequenceOfShape& S)
110{
111 S.Clear();
112 Standard_Integer jj, cpt = 0;
113 TopExp_Explorer PE;
114 for (PE.Init(W,TopAbs_VERTEX); PE.More(); PE.Next()) {
115 cpt++;
116 Standard_Boolean trouve=Standard_False;
117 for (jj=1;jj<=S.Length() && (!trouve);jj++) {
118 if (S.Value(jj).IsSame(PE.Current())) trouve = Standard_True;
119 }
120 if (!trouve) S.Append(PE.Current());
121 }
122}
123
124
125static Standard_Boolean PlaneOfWire (const TopoDS_Wire& W, gp_Pln& P)
126{
127 Standard_Boolean isplane = Standard_True;
128 BRepLib_FindSurface findPlanarSurf;
129 Handle(Geom_Surface) S;
130 TopLoc_Location L;
131
132 GProp_GProps GP;
133 BRepGProp::LinearProperties(W,GP);
134 gp_Pnt Bary = GP.CentreOfMass();
135
b2342827
Y
136// shielding for particular cases : only one edge circle or ellipse
137// on a closed wire !
7fd59977 138 Standard_Integer nbEdges = 0;
139 BRepTools_WireExplorer anExp;
140 anExp.Init(W);
141 Standard_Boolean wClosed = W.Closed();
142 if (!wClosed) {
b2342827 143 // it is checked if the vertices are the same.
7fd59977 144 TopoDS_Vertex V1, V2;
145 TopExp::Vertices(W,V1,V2);
146 if ( V1.IsSame(V2)) wClosed = Standard_True;
147 }
148 TopoDS_Edge Edge = TopoDS::Edge(anExp.Current());
149 Standard_Real first, last;
150 TopLoc_Location loc;
151 Handle(Geom_Curve) curv;
152 curv = BRep_Tool::Curve(Edge, loc, first, last);
153 curv =
154 Handle(Geom_Curve)::DownCast(curv->Transformed(loc.Transformation()));
155 if (wClosed) {
156 GeomAdaptor_Curve AdC;
157 AdC.Load(curv);
158 for(; anExp.More(); anExp.Next()) {
159 nbEdges ++;
160 }
161 if ( nbEdges==1 && AdC.GetType() == GeomAbs_Circle ) {
162 Bary = AdC.Circle().Location();
163 }
164 if ( nbEdges==1 && AdC.GetType() == GeomAbs_Ellipse ) {
165 Bary = AdC.Ellipse().Location();
166 }
167 }
168
169 findPlanarSurf.Init(W, -1, Standard_True);
170 if ( findPlanarSurf.Found()) {
171 S = findPlanarSurf.Surface();
172 L = findPlanarSurf.Location();
173 if (!L.IsIdentity()) S = Handle(Geom_Surface)::
174 DownCast(S->Transformed(L.Transformation()));
175 P = (Handle(Geom_Plane)::DownCast(S))->Pln();
176 P.SetLocation(Bary);
177 }
178 else {
b2342827 179 // wire not plane !
7fd59977 180 GProp_PrincipalProps Pp = GP.PrincipalProperties();
181 gp_Vec Vec;
182 Standard_Real R1, R2, R3,Tol = Precision::Confusion();
183 Pp.RadiusOfGyration(R1,R2,R3);
184 Standard_Real RMax = Max(Max(R1,R2),R3);
185 if ( ( Abs(RMax-R1)<Tol && Abs(RMax-R2)<Tol )
186 || ( Abs(RMax-R1)<Tol && Abs(RMax-R3)<Tol )
187 || ( Abs(RMax-R2)<Tol && Abs(RMax-R3)<Tol ) )
188 isplane = Standard_False;
189 else {
190 if (R1>=R2 && R1>=R3) {
191 Vec = Pp.FirstAxisOfInertia();
192 }
193 else if (R2>=R1 && R2>=R3) {
194 Vec = Pp.SecondAxisOfInertia();
195 }
196 else if (R3>=R1 && R3>=R2) {
197 Vec = Pp.ThirdAxisOfInertia();
198 }
199 gp_Dir NDir(Vec);
200 if (R3<=R2 && R3<=R1) {
201 Vec = Pp.ThirdAxisOfInertia();
202 }
203 else if (R2<=R1 && R2<=R3) {
204 Vec = Pp.SecondAxisOfInertia();
205 }
206 else if (R1<=R2 && R1<=R3) {
207 Vec = Pp.FirstAxisOfInertia();
208 }
209 gp_Dir XDir(Vec);
210 gp_Ax3 repere(Bary,NDir,XDir);
211 Geom_Plane GPlan(repere);
212 P = GPlan.Pln();
213 }
214 }
215
216 return isplane;
217
218}
219
220
221static void WireContinuity (const TopoDS_Wire& W,
222 GeomAbs_Shape& contW)
223{
224 contW = GeomAbs_CN;
225 GeomAbs_Shape cont;
226 Standard_Boolean IsDegenerated = Standard_False;
227
228 BRepTools_WireExplorer anExp;
229 Standard_Integer nbEdges=0;
230 Handle(TopTools_HSequenceOfShape) Edges = new TopTools_HSequenceOfShape();
231 for(anExp.Init(W); anExp.More(); anExp.Next()) {
232 nbEdges++;
233 Edges->Append(anExp.Current());
234 if (BRep_Tool::Degenerated(anExp.Current())) IsDegenerated = Standard_True;
235 }
236
237 if (!IsDegenerated) {
238
239 Standard_Boolean testconti = Standard_True;
240
241 for (Standard_Integer j=1;j<=nbEdges;j++) {
242
243 TopoDS_Edge Edge1, Edge2;
244
245 if (j == nbEdges) {
246 Edge1 = TopoDS::Edge (Edges->Value(nbEdges));
247 Edge2 = TopoDS::Edge (Edges->Value(1));
248 }
249 else {
250 Edge1 = TopoDS::Edge (Edges->Value(j));
251 Edge2 = TopoDS::Edge (Edges->Value(j+1));
252 }
253
254 TopoDS_Vertex V1,V2,Vbid;
255 TopExp::Vertices(Edge1,Vbid,V1,Standard_True);
256 TopExp::Vertices(Edge2,V2,Vbid,Standard_True);
257 Standard_Real U1 = BRep_Tool::Parameter(V1,Edge1);
258 Standard_Real U2 = BRep_Tool::Parameter(V2,Edge2);
259 BRepAdaptor_Curve Curve1(Edge1);
260 BRepAdaptor_Curve Curve2(Edge2);
261 Standard_Real Eps = BRep_Tool::Tolerance(V2) + BRep_Tool::Tolerance(V1);
262
263 if(j == nbEdges)
264 testconti = Curve1.Value(U1).IsEqual(Curve2.Value(U2), Eps);
265
266 if(testconti) {
267 cont = BRepLProp::Continuity(Curve1,Curve2,U1,U2,
268 Eps, Precision::Angular());
269 if (cont <= contW) contW = cont;
270 }
271 }
272 }
273
274}
275
276static void TrimEdge (const TopoDS_Edge& CurrentEdge,
277 const TColStd_SequenceOfReal& CutValues,
278 const Standard_Real t0, const Standard_Real t1,
279 const Standard_Boolean SeqOrder,
280 TopTools_SequenceOfShape& S)
281
282{
283 S.Clear();
284 Standard_Integer j, ndec=CutValues.Length();
285 Standard_Real first,last,m0,m1;
286 Handle(Geom_Curve) C = BRep_Tool::Curve(CurrentEdge,first,last);
287
288 TopoDS_Vertex Vf,Vl,Vbid,V0,V1;
289 TopAbs_Orientation CurrentOrient = CurrentEdge.Orientation();
290 TopExp::Vertices(CurrentEdge,Vf,Vl);
291 Vbid.Nullify();
292
293 if (SeqOrder) {
b2342827 294 // from first to last
7fd59977 295 m0 = first;
296 V0 = Vf;
297 for (j=1; j<=ndec; j++) {
b2342827 298 // piece of edge
7fd59977 299 m1 = (CutValues.Value(j)-t0)*(last-first)/(t1-t0)+first;
300 TopoDS_Edge CutE = BRepLib_MakeEdge(C,V0,Vbid,m0,m1);
301 CutE.Orientation(CurrentOrient);
302 S.Append(CutE);
303 m0 = m1;
304 V0 = TopExp::LastVertex(CutE);
305 if (j==ndec) {
b2342827 306 // last piece
7fd59977 307 TopoDS_Edge LastE = BRepLib_MakeEdge(C,V0,Vl,m0,last);
308 LastE.Orientation(CurrentOrient);
309 S.Append(LastE);
310 }
311 }
312 }
313 else {
b2342827 314 // from last to first
7fd59977 315 m1 = last;
316 V1 = Vl;
317 for (j=ndec; j>=1; j--) {
b2342827 318 // piece of edge
7fd59977 319 m0 = (CutValues.Value(j)-t0)*(last-first)/(t1-t0)+first;
320 TopoDS_Edge CutE = BRepLib_MakeEdge(C,Vbid,V1,m0,m1);
321 CutE.Orientation(CurrentOrient);
322 S.Append(CutE);
323 m1 = m0;
324 V1 = TopExp::FirstVertex(CutE);
325 if (j==1) {
b2342827 326 // last piece
7fd59977 327 TopoDS_Edge LastE = BRepLib_MakeEdge(C,Vf,V1,first,m1);
328 LastE.Orientation(CurrentOrient);
329 S.Append(LastE);
330 }
331 }
332 }
333}
334
335
336
337static Standard_Boolean SearchRoot (const TopoDS_Vertex& V,
338 const TopTools_DataMapOfShapeListOfShape& Map,
339 TopoDS_Vertex& VRoot)
340{
341 Standard_Boolean trouve = Standard_False;
342 VRoot.Nullify();
343 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape it;
344 for (it.Initialize(Map); it.More(); it.Next()) {
345 const TopTools_ListOfShape & List = it.Value();
346 TopTools_ListIteratorOfListOfShape itL;
347 Standard_Boolean ilyest = Standard_False;
348 for (itL.Initialize(List); itL.More(); itL.Next()) {
349 TopoDS_Vertex Vcur = TopoDS::Vertex(itL.Value());
350 if (Vcur.IsSame(V)) {
351 ilyest = Standard_True;
352 }
353 if (ilyest) break;
354 }
355 if (ilyest) {
356 trouve = Standard_True;
357 VRoot = TopoDS::Vertex(it.Key());
358 }
359 if (trouve) break;
360 }
361 return trouve;
362}
363
364static Standard_Boolean SearchVertex (const TopTools_ListOfShape& List,
365 const TopoDS_Wire& W,
366 TopoDS_Vertex& VonW)
367{
368 Standard_Boolean trouve = Standard_False;
369 VonW.Nullify();
370 TopTools_SequenceOfShape SeqV;
371 SeqOfVertices(W,SeqV);
372 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
373 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
374 TopTools_ListIteratorOfListOfShape itL;
375 Standard_Boolean ilyest = Standard_False;
376 for (itL.Initialize(List); itL.More(); itL.Next()) {
377 TopoDS_Vertex Vcur = TopoDS::Vertex(itL.Value());
378 if (Vcur.IsSame(Vi)) {
379 ilyest = Standard_True;
380 }
381 if (ilyest) break;
382 }
383 if (ilyest) {
384 trouve = Standard_True;
385 VonW = Vi;
386 }
387 if (trouve) break;
388 }
389 return trouve;
390}
391
392
393static Standard_Boolean EdgeIntersectOnWire (const gp_Pnt& P1,
394 const gp_Pnt& P2,
395 Standard_Real percent,
396 const TopTools_DataMapOfShapeListOfShape& Map,
397 const TopoDS_Wire& W,
398 TopoDS_Vertex& Vsol,
399 TopoDS_Wire& newW)
400{
401
402 BRepTools_WireExplorer anExp;
403
b2342827 404 // construction of the edge of intersection
7fd59977 405 Standard_Boolean NewVertex = Standard_False;
406 gp_Lin droite(P1,gp_Dir(gp_Vec(P1,P2)));
b2342827
Y
407 // ATTENTION : it is required to construct a half-straight
408 // but there is a bug in BRepExtrema_DistShapeShape
409 // it is enough to take 100 * distance between P1 and P2
410 // hoping that it is enough until the bug is corrected
7fd59977 411 // Standard_Real dernierparam = Precision::Infinite();
b2342827
Y
412 // ATTENTION : return !!
413 // 100 is better than 10 but it is too much !
414 // finally, nothing is better than a blocking box
7fd59977 415 // Standard_Real dernierparam = 100 * P1.Distance(P2);
416 Bnd_Box B;
417 BRepBndLib::Add(W,B);
418 Standard_Real x1,x2,y1,y2,z1,z2;
419 B.Get(x1,y1,z1,x2,y2,z2);
420 gp_Pnt BP1(x1,y1,z1), BP2(x2,y2,z2);
421 Standard_Real diag = BP1.Distance(BP2);
422 Standard_Real dernierparam = diag;
423 BRepLib_MakeEdge ME(droite,0.,dernierparam);
424 TopoDS_Edge ECur = BRepLib_MakeEdge(droite,0.,P1.Distance(P2));
425
b2342827 426 // calculate the intersection by BRepExtrema (point of min distance)
7fd59977 427 BRepExtrema_DistShapeShape DSS(ME.Edge(),W);
428 if (DSS.IsDone()) {
b2342827 429 // choose the solution closest to P2
7fd59977 430 Standard_Integer isol = 1;
431 Standard_Real dss = P2.Distance(DSS.PointOnShape2(isol));
432 for (Standard_Integer iss=2; iss<=DSS.NbSolution(); iss++) {
433 if (dss>P2.Distance(DSS.PointOnShape2(iss))) {
434 dss = P2.Distance(DSS.PointOnShape2(iss));
435 isol = iss;
436 }
437 }
438#ifdef DEB
439 gp_Pnt Psol =
440#endif
441 DSS.PointOnShape2(isol);
b2342827 442 // is the solution a new vertex ?
7fd59977 443 NewVertex = (DSS.SupportTypeShape2(isol) != BRepExtrema_IsVertex);
444 if (NewVertex) {
445 TopoDS_Shape aLocalShape = DSS.SupportOnShape2(isol);
446 TopoDS_Edge E = TopoDS::Edge(aLocalShape);
447// TopoDS_Edge E = TopoDS::Edge(DSS.SupportOnShape2(isol));
448 Standard_Real tol = Precision::PConfusion();
449 Standard_Real first,last,param;
450 BRep_Tool::Range(E,first,last);
451 tol = Max(tol,percent*Abs(last-first));
452 DSS.ParOnEdgeS2(isol,param);
453 if (Abs(first-param)<tol) {
454 NewVertex = Standard_False;
455 Vsol = TopExp::FirstVertex(E);
456 }
457 else if (Abs(last-param)<tol) {
458 NewVertex = Standard_False;
459 Vsol = TopExp::LastVertex(E);
460 }
b2342827 461 // check
7fd59977 462 if (!NewVertex) {
463 TopoDS_Vertex VRoot;
464 if (SearchRoot(Vsol,Map,VRoot)) NewVertex = Standard_True;
465 }
466 }
467 else {
468 TopoDS_Shape aLocalShape = DSS.SupportOnShape2(isol);
469 Vsol = TopoDS::Vertex(aLocalShape);
470// Vsol = TopoDS::Vertex(DSS.SupportOnShape2(isol));
471 }
472
b2342827 473 // it is required to cut the edge
7fd59977 474 if (NewVertex) {
475 TopoDS_Shape aLocalShape = DSS.SupportOnShape2(isol);
476 TopoDS_Edge E = TopoDS::Edge(aLocalShape);
477// TopoDS_Edge E = TopoDS::Edge(DSS.SupportOnShape2(isol));
478#ifdef DEB
479 Standard_Real tol =
480#endif
481 Precision::PConfusion();
482 Standard_Real first,last,param;
483 DSS.ParOnEdgeS2(isol,param);
484 BRep_Tool::Range(E,first,last);
485 BRepLib_MakeWire MW;
486 for (anExp.Init(W); anExp.More(); anExp.Next()) {
487 if (E.IsSame(anExp.Current())) {
488 Standard_Boolean SO
489 = (anExp.CurrentVertex().IsSame(TopExp::FirstVertex(E)));
490 TopTools_SequenceOfShape SE;
491 SE.Clear();
492 TColStd_SequenceOfReal SR;
493 SR.Clear();
494 SR.Append(param);
495 TrimEdge(E,SR,first,last,SO,SE);
496 TopoDS_Vertex VV1,VV2;
497 TopExp::Vertices(TopoDS::Edge(SE.Value(1)),VV1,VV2);
498 if (TopExp::FirstVertex(E).IsSame(VV1)
499 || TopExp::LastVertex(E).IsSame(VV1)) {
500 Vsol = VV2;
501 }
502 if (TopExp::FirstVertex(E).IsSame(VV2)
503 || TopExp::LastVertex(E).IsSame(VV2)) {
504 Vsol = VV1;
505 }
506 for (Standard_Integer k=1; k<=SE.Length(); k++) {
507 MW.Add(TopoDS::Edge(SE.Value(k)));
508 }
509 }
510 else {
511 MW.Add(anExp.Current());
512 }
513 }
514 newW = MW.Wire();
515 }
516 else {
517 newW = W;
518 }
519
520
521 }
522
523 return NewVertex;
524
525}
526
527
528static void Transform (const Standard_Boolean WithRotation,
529 const gp_Pnt& P,
530 const gp_Pnt& Pos1,
531 const gp_Vec& Ax1,
532 const gp_Pnt& Pos2,
533 const gp_Vec& Ax2,
534 gp_Pnt& Pnew)
535{
536
537 Pnew = P.Translated (Pos1,Pos2);
538 gp_Vec axe1 = Ax1, axe2 = Ax2;
539 if (!axe1.IsParallel(axe2,1.e-4)) {
540 gp_Vec Vtrans(Pos1,Pos2),Vsign;
541 Standard_Real alpha,beta,sign=1;
542 alpha = Vtrans.Dot(axe1);
543 beta = Vtrans.Dot(axe2);
544 if (alpha<-1.e-7) axe1 *=-1;
545 if (beta<1.e-7) axe2 *=-1;
546 alpha = Vtrans.Dot(axe1);
547 beta = Vtrans.Dot(axe2);
548 gp_Vec norm2 = axe1 ^ axe2;
549 Vsign.SetLinearForm(Vtrans.Dot(axe1),axe2,-Vtrans.Dot(axe2),axe1);
550 alpha = Vsign.Dot(axe1);
551 beta = Vsign.Dot(axe2);
552 Standard_Boolean pasnul = (Abs(alpha)>1.e-4 && Abs(beta)>1.e-4);
553 if ( alpha*beta>0.0 && pasnul ) sign=-1;
554 gp_Ax1 Norm(Pos2,norm2);
555 Standard_Real ang = axe1.AngleWithRef(axe2,norm2);
556 if (!WithRotation) {
557 if (ang>PI/2) ang = ang - PI;
558 if (ang<-PI/2) ang = ang + PI;
559 }
560 ang *= sign;
561 Pnew = Pnew.Rotated (Norm,ang);
562 }
563}
564
565static void BuildConnectedEdges(const TopoDS_Wire& aWire,
566 const TopoDS_Edge& StartEdge,
567 const TopoDS_Vertex& StartVertex,
568 TopTools_ListOfShape& ConnectedEdges)
569{
570 TopTools_IndexedDataMapOfShapeListOfShape MapVE;
571 TopExp::MapShapesAndAncestors(aWire, TopAbs_VERTEX, TopAbs_EDGE, MapVE);
572 TopoDS_Edge CurEdge = StartEdge;
573 TopoDS_Vertex CurVertex = StartVertex;
574 TopoDS_Vertex Origin, V1, V2;
575 TopExp::Vertices(StartEdge, V1, V2);
576 Origin = (V1.IsSame(StartVertex))? V2 : V1;
577
578 for (;;)
579 {
580 TopTools_ListIteratorOfListOfShape itE( MapVE.FindFromKey(CurVertex) );
581 for (; itE.More(); itE.Next())
582 {
583 TopoDS_Edge anEdge = TopoDS::Edge(itE.Value());
584 if (!anEdge.IsSame(CurEdge))
585 {
586 ConnectedEdges.Append(anEdge);
587 TopExp::Vertices(anEdge, V1, V2);
588 CurVertex = (V1.IsSame(CurVertex))? V2 : V1;
589 CurEdge = anEdge;
590 break;
591 }
592 }
593 if (CurVertex.IsSame(Origin))
594 break;
595 }
596}
597
598//=======================================================================
599//function : BRepFill_CompatibleWires
600//purpose :
601//=======================================================================
602
603BRepFill_CompatibleWires::BRepFill_CompatibleWires()
604:myIsDone(Standard_False)
605{
606}
607
608
609//=======================================================================
610//function : BRepFill_CompatibleWires
611//purpose :
612//=======================================================================
613
614BRepFill_CompatibleWires::BRepFill_CompatibleWires(const TopTools_SequenceOfShape& Sections)
615{
616 Init(Sections);
617}
618
619
620//=======================================================================
621//function : Init
622//purpose :
623//=======================================================================
624
625void BRepFill_CompatibleWires::Init(const TopTools_SequenceOfShape& Sections)
626{
627 myInit = Sections;
628 myWork = Sections;
629 myPercent = 0.01;
630 myIsDone = Standard_False;
631 myMap.Clear();
632
633}
634
635
636//=======================================================================
637//function : SetPercent
638//purpose :
639//=======================================================================
640
641void BRepFill_CompatibleWires::SetPercent(const Standard_Real Percent)
642{
643 if (0.<Percent && Percent<1.) myPercent = Percent;
644
645}
646
647
648//=======================================================================
649//function : IsDone
650//purpose :
651//=======================================================================
652
653Standard_Boolean BRepFill_CompatibleWires::IsDone() const
654{
655 return myIsDone;
656}
657
658
659//=======================================================================
660//function : Shape
661//purpose :
662//=======================================================================
663
664const TopTools_SequenceOfShape& BRepFill_CompatibleWires::Shape() const
665{
666 return myWork;
667}
668
669
670//=======================================================================
671//function : GeneratedShapes
672//purpose :
673//=======================================================================
674
675const TopTools_ListOfShape& BRepFill_CompatibleWires::GeneratedShapes
676(const TopoDS_Edge& SubSection) const
677{
678
679 if (myMap.IsBound(SubSection)) {
680 return myMap(SubSection);
681 }
682 else {
683 static TopTools_ListOfShape Empty;
684 return Empty;
685 }
686}
687
688
689//=======================================================================
690//function : Perform
691//purpose :
692//=======================================================================
693
694void BRepFill_CompatibleWires::Perform (const Standard_Boolean WithRotation)
695{
696 // compute origin and orientation on wires to avoid twisted results
697 // and update wires to have same number of edges
698
b2342827
Y
699 // determination of report:
700 // if the number of elements is the same and if the wires have discontinuities
701 // by tangency, the report is not carried out by curvilinear abscissa
7fd59977 702 Standard_Integer nbSects = myWork.Length(), i;
703 BRepTools_WireExplorer anExp;
704 Standard_Integer nbmax=0, nbmin=0;
705 TColStd_Array1OfInteger nbEdges(1,nbSects);
706 Standard_Boolean report;
707 GeomAbs_Shape contS=GeomAbs_CN;
708 GeomAbs_Shape cont;
709 for (i=1; i<=nbSects; i++) {
710 TopoDS_Shape aLocalShape = myWork(i).Oriented(TopAbs_FORWARD);
711 myWork(i) = TopoDS::Wire(aLocalShape);
712// myWork(i) = TopoDS::Wire(myWork(i).Oriented(TopAbs_FORWARD));
713 TopoDS_Wire W = TopoDS::Wire(myWork(i));
714 WireContinuity(W,cont);
715 if (cont<contS) contS=cont;
716 nbEdges(i) = 0;
717 for(anExp.Init(W); anExp.More(); anExp.Next() ) nbEdges(i)++;
718 if (i==1) nbmin = nbEdges(i);
719 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
720 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
721 }
b2342827
Y
722 // if the number of elements is not the same or if all wires are at least
723 // C1, the report is carried out by curvilinear abscissa of cuts, otherwise
724 // a report vertex / Vertex is done
7fd59977 725 report = (nbmax != nbmin || contS >= GeomAbs_C1 );
726
b2342827 727 // initialization of the map
7fd59977 728 Standard_Integer nbE = 0;
729 TopTools_ListOfShape Empty;
730 for (i=1; i<=nbSects; i++) {
731 TopoDS_Wire W = TopoDS::Wire(myWork(i));
732 for(anExp.Init(W); anExp.More(); anExp.Next() ) {
733 TopoDS_Edge E = TopoDS::Edge(anExp.Current());
734 myMap.Bind(E,Empty);
735 myMap(E).Append(E);
736 nbE++;
737 }
738 }
739
b2342827
Y
740 // open/closed sections
741 // initialisation of myDegen1, myDegen2
7fd59977 742 Standard_Integer ideb=1, ifin=myWork.Length();
b2342827 743 // check if the first wire is punctual
7fd59977 744 myDegen1 = Standard_True;
745 for(anExp.Init(TopoDS::Wire(myWork(ideb))); anExp.More(); anExp.Next()) {
746 myDegen1 = myDegen1 && (BRep_Tool::Degenerated(anExp.Current()));
747 }
748 if (myDegen1) ideb++;
b2342827 749 // check if the last wire is punctual
7fd59977 750 myDegen2 = Standard_True;
751 for(anExp.Init(TopoDS::Wire(myWork(ifin))); anExp.More(); anExp.Next()) {
752 myDegen2 = myDegen2 && (BRep_Tool::Degenerated(anExp.Current()));
753 }
754 if (myDegen2) ifin--;
755
756 Standard_Boolean wClosed, allClosed = Standard_True, allOpen = Standard_True;
757 for (i=ideb; i<=ifin; i++) {
758 wClosed = myWork(i).Closed();
759 if (!wClosed) {
b2342827 760 // check if the vertices are the same.
7fd59977 761 TopoDS_Vertex V1, V2;
762 TopExp::Vertices(TopoDS::Wire(myWork(i)),V1,V2);
763 if ( V1.IsSame(V2)) wClosed = Standard_True;
764 }
765 allClosed = (allClosed && wClosed);
766 allOpen = (allOpen && !wClosed);
767 }
768
769 if (allClosed) {
b2342827 770 // All sections are closed
7fd59977 771 if (report) {
772 // same number of elements
773 SameNumberByPolarMethod(WithRotation);
774 }
775 else {
b2342827 776 // origin
7fd59977 777 ComputeOrigin(Standard_False);
778 }
779 myIsDone = Standard_True;
780 }
781 else if (allOpen) {
b2342827
Y
782 // All sections are open
783 // origin
7fd59977 784 SearchOrigin();
785 // same number of elements
786 if (report) {
787 SameNumberByACR(report);
788 }
789 myIsDone = Standard_True;
790 }
791 else {
b2342827
Y
792 // There are open and closed sections :
793 // not processed
7fd59977 794 Standard_DomainError::Raise("Sections must be all closed or all open");
795 }
796
797}
798
799
800
801
802//=======================================================================
803//function : Generated
804//purpose :
805//=======================================================================
806
807const TopTools_DataMapOfShapeListOfShape& BRepFill_CompatibleWires::Generated() const
808{
809 return myMap;
810}
811
812
813//=======================================================================
814//function : SameNumberByPolarMethod
815//purpose :
816//=======================================================================
817
818void BRepFill_CompatibleWires::
819 SameNumberByPolarMethod(const Standard_Boolean WithRotation)
820{
821
822 // initialisation
823 Standard_Integer NbSects=myWork.Length();
824 BRepTools_WireExplorer anExp;
825 TopoDS_Vertex V1, V2;
826
827 Standard_Boolean allClosed = Standard_True;
828 Standard_Integer i,ii,ideb=1,ifin=NbSects;
829 for (i=1; i<=NbSects; i++) {
d7325741
J
830 Handle(BRepCheck_Wire) Checker = new BRepCheck_Wire(TopoDS::Wire(myWork(i)));
831 allClosed = (allClosed && (Checker->Closed() == BRepCheck_NoError));
832 //allClosed = (allClosed && myWork(i).Closed());
7fd59977 833 }
834 if (!allClosed)
835 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByPolarMethod : the wires must be closed");
836
0a0cf813 837 // sections ponctuelles, sections bouclantes ?
838 if (myDegen1) ideb++;
839 if (myDegen2) ifin--;
840 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
841 && (myWork(ideb).IsSame(myWork(ifin)));
842
843 //Removing degenerated edges
844 for (i = ideb; i <= ifin; i++)
845 {
846 Standard_Boolean hasDegEdge = Standard_False;
847 TopoDS_Iterator anItw(myWork(i));
848 for (; anItw.More(); anItw.Next())
849 {
850 const TopoDS_Edge& anEdge = TopoDS::Edge(anItw.Value());
851 if (BRep_Tool::Degenerated(anEdge))
852 {
853 hasDegEdge = Standard_True;
854 break;
855 }
856 }
857 if (hasDegEdge)
858 {
859 TopoDS_Wire aNewWire;
860 BRep_Builder aBBuilder;
861 aBBuilder.MakeWire(aNewWire);
862 for (anItw.Initialize(myWork(i)); anItw.More(); anItw.Next())
863 {
864 const TopoDS_Edge& anEdge = TopoDS::Edge(anItw.Value());
865 if (!BRep_Tool::Degenerated(anEdge))
866 aBBuilder.Add(aNewWire, anEdge);
867 }
868 myWork(i) = aNewWire;
869 }
870 }
871
7fd59977 872 // Nombre max de decoupes possibles
873 Standard_Integer NbMaxV = 0;
874 for (i=1; i<=NbSects; i++) {
875 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
876 NbMaxV++;
877 }
878 }
879
b2342827 880 // construction of tables of planes of wires
7fd59977 881 gp_Pln P;
882 Handle(TColgp_HArray1OfPnt) Pos
883 = new (TColgp_HArray1OfPnt) (1,NbSects);
884 Handle(TColgp_HArray1OfVec) Axe
885 = new (TColgp_HArray1OfVec) (1,NbSects);
886 for (i=ideb;i<=ifin;i++) {
887 if (PlaneOfWire(TopoDS::Wire(myWork(i)),P)) {
888 Pos->SetValue(i,P.Location());
889 Axe->SetValue(i,gp_Vec(P.Axis().Direction()));
890 }
891 }
892 TopTools_SequenceOfShape SeqV;
893 if (myDegen1) {
894 SeqOfVertices(TopoDS::Wire(myWork(1)),SeqV);
895 Pos->SetValue(1,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
896 Axe->SetValue(1,Axe->Value(ideb));
897 }
898 if (myDegen2) {
899 SeqOfVertices(TopoDS::Wire(myWork(NbSects)),SeqV);
900 Pos->SetValue(NbSects,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
901 Axe->SetValue(NbSects,Axe->Value(ifin));
902 }
903
b2342827 904 // construction of RMap, map of reports of wire i to wire i-1
7fd59977 905 TopTools_DataMapOfShapeListOfShape RMap;
906 RMap.Clear();
907
b2342827 908 // loop on i
7fd59977 909 for (i=ifin; i>ideb; i--) {
910
911 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
912
b2342827 913 // sequence of vertices of the first wire
7fd59977 914 SeqOfVertices(wire1,SeqV);
915 if (SeqV.Length()>NbMaxV)
916 Standard_NoSuchObject::Raise("BRepFill::SameNumberByPolarMethod failed");
917
b2342827 918 // extremity of the first wire
7fd59977 919 V1 = TopoDS::Vertex(SeqV.Value(1));
b2342827 920 // previous wire
7fd59977 921#ifdef DEB
922 const TopoDS_Wire& wire2 =
923#endif
924 TopoDS::Wire(myWork(i-1));
b2342827 925 // loop on vertices of wire1
7fd59977 926 for (ii=1;ii<=SeqV.Length();ii++) {
927
928 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
929
b2342827 930 // init of RMap for Vi
7fd59977 931 TopTools_ListOfShape Init;
932 Init.Clear();
933 RMap.Bind(Vi,Init);
934
b2342827 935 // it is required to find intersection Vi - wire2
7fd59977 936 gp_Pnt Pi = BRep_Tool::Pnt(Vi);
937
b2342827 938 // return Pi in the current plane
7fd59977 939 gp_Pnt Pnew;
940 Transform(WithRotation,Pi,
941 Pos->Value(i),Axe->Value(i),
942 Pos->Value(i-1),Axe->Value(i-1),Pnew);
943
b2342827 944 // calculate the intersection
7fd59977 945 TopoDS_Shape Support;
946 Standard_Boolean NewVertex;
947 TopoDS_Vertex Vsol;
948 TopoDS_Wire newwire;
949 if (Pnew.Distance(Pos->Value(i-1))>Precision::Confusion()) {
950 Standard_Real percent = myPercent;
951 NewVertex = EdgeIntersectOnWire(Pos->Value(i-1),Pnew,percent,
952 RMap,TopoDS::Wire(myWork(i-1)),
953 Vsol,newwire);
954 if (NewVertex) myWork(i-1) = newwire;
955 RMap(Vi).Append(Vsol);
956 }
957
b2342827
Y
958 } // loop on ii
959 } // loop on i
7fd59977 960
b2342827 961 // initialisation of MapVLV, map of correspondences vertex - list of vertices
7fd59977 962 TopTools_DataMapOfShapeListOfShape MapVLV;
963 SeqOfVertices(TopoDS::Wire(myWork(ideb)),SeqV);
964 Standard_Integer SizeMap = SeqV.Length();
965 MapVLV.Clear();
966 for (ii=1;ii<=SizeMap;ii++) {
967 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
968 TopTools_ListOfShape Init;
969 Init.Clear();
970 Init.Append(Vi);
971 MapVLV.Bind(Vi,Init);
972 Standard_Integer NbV = 1;
973 TopoDS_Vertex V0,V1;
974 V0 = Vi;
975 Standard_Boolean tantque = SearchRoot(V0,RMap,V1);
976 while (tantque) {
977 MapVLV(Vi).Append(V1);
978 NbV++;
b2342827 979 // test on NbV required for looping sections
7fd59977 980 if (V1.IsSame(Vi) || NbV >= myWork.Length()) {
981 tantque = Standard_False;
982 }
983 else {
984 V0 = V1;
985 tantque = SearchRoot(V0,RMap,V1);
986 }
987 }
988 }
989
b2342827 990 // loop on i
7fd59977 991 for (i=ideb; i<ifin; i++) {
992
993 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
994
b2342827 995 // sequence of vertices of the first wire
7fd59977 996 SeqOfVertices(wire1,SeqV);
997 if ( SeqV.Length()>NbMaxV || SeqV.Length()>SizeMap )
998 Standard_NoSuchObject::Raise("BRepFill::SameNumberByPolarMethod failed");
999
b2342827 1000 // extremity of the first wire
7fd59977 1001 V1 = TopoDS::Vertex(SeqV.Value(1));
1002
b2342827 1003 // next wire
7fd59977 1004 const TopoDS_Wire& wire2 = TopoDS::Wire(myWork(i+1));
1005
b2342827 1006 // loop on vertices of wire1
7fd59977 1007 for (ii=1;ii<=SeqV.Length();ii++) {
1008
1009 TopoDS_Vertex Vi = TopoDS::Vertex(SeqV.Value(ii));
1010 TopoDS_Vertex VRoot;
1011 VRoot.Nullify();
1012 Standard_Boolean intersect = Standard_True;
1013 if (SearchRoot(Vi,MapVLV,VRoot)) {
1014 const TopTools_ListOfShape& LVi = MapVLV(VRoot);
1015 TopoDS_Vertex VonW;
1016 VonW.Nullify();
1017 intersect = (!SearchVertex(LVi,wire2,VonW));
1018 }
1019
1020 if (intersect) {
b2342827 1021 // it is necessary to find intersection Vi - wire2
7fd59977 1022 gp_Pnt Pi = BRep_Tool::Pnt(Vi);
1023
b2342827 1024 // return Pi in the current plane
7fd59977 1025 gp_Pnt Pnew;
1026 Transform(WithRotation,Pi,
1027 Pos->Value(i),Axe->Value(i),
1028 Pos->Value(i+1),Axe->Value(i+1),Pnew);
1029
b2342827 1030 // calculate the intersection
7fd59977 1031 TopoDS_Shape Support;
1032 Standard_Boolean NewVertex;
1033 TopoDS_Vertex Vsol;
1034 TopoDS_Wire newwire;
1035 if (Pnew.Distance(Pos->Value(i+1))>Precision::Confusion()) {
1036 Standard_Real percent = myPercent;
1037 NewVertex = EdgeIntersectOnWire(Pos->Value(i+1),Pnew,percent,
1038 MapVLV,TopoDS::Wire(myWork(i+1)),
1039 Vsol,newwire);
1040 MapVLV(VRoot).Append(Vsol);
1041 if (NewVertex) myWork(i+1) = newwire;
1042 }
1043
1044 }
b2342827
Y
1045 } // loop on ii
1046 } // loop on i
7fd59977 1047
b2342827 1048 // regularize wires following MapVLV
7fd59977 1049 TopoDS_Wire wire = TopoDS::Wire(myWork(ideb));
1050
b2342827 1051 // except for the last if the sections loop
7fd59977 1052 Standard_Integer ibout = ifin;
1053 if (vClosed) ibout--;
1054
1055 for ( i=ideb+1; i<=ibout; i++) {
1056
1057 BRepLib_MakeWire MW;
1058
1059 anExp.Init(wire);
1060 TopoDS_Edge ECur = anExp.Current();
1061 TopoDS_Vertex VF,VL;
1062 TopExp::Vertices(ECur,VF,VL,Standard_True);
1063 Standard_Real U1 = BRep_Tool::Parameter(VF,ECur);
1064 Standard_Real U2 = BRep_Tool::Parameter(VL,ECur);
1065 BRepAdaptor_Curve Curve(ECur);
1066 gp_Pnt PPs = Curve.Value(0.1*(U1+9*U2));
1067 TopTools_ListIteratorOfListOfShape itF(MapVLV(VF)),itL(MapVLV(VL));
1068 Standard_Integer rang = ideb;
1069 while (rang < i) {
1070 itF.Next();
1071 itL.Next();
1072 rang++;
1073 }
1074 TopoDS_Vertex V1 = TopoDS::Vertex(itF.Value()), V2 = TopoDS::Vertex(itL.Value());
1075 TopoDS_Edge Esol;
1076 Standard_Real scalmax=0.;
1077 TopoDS_Iterator itW( myWork(i) );
1078
1079 for(; itW.More(); itW.Next())
1080 {
1081 TopoDS_Edge E = TopoDS::Edge(itW.Value());
1082 TopoDS_Vertex VVF,VVL;
1083 TopExp::Vertices(E,VVF,VVL,Standard_True);
1084
b2342827 1085 // parse candidate edges
7fd59977 1086 Standard_Real scal1,scal2;
1087 if ( (V1.IsSame(VVF)&&V2.IsSame(VVL)) || (V2.IsSame(VVF)&&V1.IsSame(VVL)) ) {
1088 Standard_Real U1 = BRep_Tool::Parameter(VVF,E);
1089 Standard_Real U2 = BRep_Tool::Parameter(VVL,E);
1090 BRepAdaptor_Curve Curve(E);
1091 gp_Pnt PP1 = Curve.Value(0.1*(U1+9*U2));
1092 gp_Pnt PP2 = Curve.Value(0.1*(9*U1+U2));
1093
1094 for (rang=i;rang>ideb;rang--) {
1095 Transform(WithRotation, PP1,
1096 Pos->Value(rang), Axe->Value(rang),
1097 Pos->Value(rang-1), Axe->Value(rang-1), PP1);
1098 Transform(WithRotation, PP2,
1099 Pos->Value(rang), Axe->Value(rang),
1100 Pos->Value(rang-1), Axe->Value(rang-1), PP2);
1101 }
1102 gp_Vec Ns(Pos->Value(ideb),PPs);
1103 Ns = Ns.Normalized();
1104 gp_Vec N1(Pos->Value(ideb),PP1);
1105 N1 = N1.Normalized();
1106 gp_Vec N2(Pos->Value(ideb),PP2);
1107 N2 = N2.Normalized();
1108 scal1 = N1.Dot(Ns);
1109 if (scal1>scalmax) {
1110 scalmax = scal1;
1111 Esol = E;
1112 }
1113 scal2 = N2.Dot(Ns);
1114 if (scal2>scalmax) {
1115 scalmax = scal2;
1116 TopoDS_Shape aLocalShape = E.Reversed();
1117 Esol = TopoDS::Edge(aLocalShape);
1118 }
1119 }
1120 } //end of for(; itW.More(); itW.Next())
1121 MW.Add(Esol);
1122
1123 TopTools_ListOfShape ConnectedEdges;
1124 BuildConnectedEdges( TopoDS::Wire(myWork(i)), Esol, V2, ConnectedEdges );
1125
1126 TopTools_ListIteratorOfListOfShape itCE(ConnectedEdges);
1127 for(; anExp.More(), itCE.More(); anExp.Next(), itCE.Next())
1128 {
1129 ECur = anExp.Current();
1130 TopExp::Vertices(ECur,VF,VL,Standard_True);
1131 U1 = BRep_Tool::Parameter(VF,ECur);
1132 U2 = BRep_Tool::Parameter(VL,ECur);
1133 Curve.Initialize(ECur);
1134 PPs = Curve.Value(0.1*(U1+9*U2));
1135
1136 TopoDS_Edge E = TopoDS::Edge(itCE.Value());
1137 TopoDS_Vertex VVF,VVL;
1138 TopExp::Vertices(E,VVF,VVL,Standard_True);
1139
b2342827 1140 // parse candidate edges
7fd59977 1141 Standard_Real scal1,scal2;
1142 U1 = BRep_Tool::Parameter(VVF,E);
1143 U2 = BRep_Tool::Parameter(VVL,E);
1144 Curve.Initialize(E);
1145 gp_Pnt PP1 = Curve.Value(0.1*(U1+9*U2));
1146 gp_Pnt PP2 = Curve.Value(0.1*(9*U1+U2));
1147
1148 for (rang=i;rang>ideb;rang--) {
1149 Transform(WithRotation, PP1,
1150 Pos->Value(rang), Axe->Value(rang),
1151 Pos->Value(rang-1), Axe->Value(rang-1), PP1);
1152 Transform(WithRotation, PP2,
1153 Pos->Value(rang), Axe->Value(rang),
1154 Pos->Value(rang-1), Axe->Value(rang-1), PP2);
1155 }
1156 gp_Vec Ns(Pos->Value(ideb),PPs);
1157 Ns = Ns.Normalized();
1158 gp_Vec N1(Pos->Value(ideb),PP1);
1159 N1 = N1.Normalized();
1160 gp_Vec N2(Pos->Value(ideb),PP2);
1161 N2 = N2.Normalized();
1162 scal1 = N1.Dot(Ns);
1163 scal2 = N2.Dot(Ns);
1164 if (scal2>scal1)
1165 E.Reverse();
1166 MW.Add(E);
1167 }
1168 myWork(i) = MW.Wire();
1169 }
1170
b2342827 1171 // blocking sections?
7fd59977 1172 if (vClosed) myWork(myWork.Length()) = myWork(1);
1173
b2342827 1174 // check the number of edges for debug
7fd59977 1175 Standard_Integer nbmax=0, nbmin=0;
1176 for ( i=ideb; i<=ifin; i++) {
1177 Standard_Integer nbEdges=0;
1178 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1179 nbEdges++;
1180 }
1181 if (i==ideb) nbmin = nbEdges;
1182 if (nbmax<nbEdges) nbmax = nbEdges;
1183 if (nbmin>nbEdges) nbmin = nbEdges;
1184 }
1185 if (nbmin!=nbmax) {
1186 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByPolarMethod failed");
1187 }
1188
1189}
1190
1191//=======================================================================
1192//function : SameNumberByACR
1193//purpose :
1194//=======================================================================
1195
1196void BRepFill_CompatibleWires::SameNumberByACR(const Standard_Boolean report)
1197{
1198 // find the dimension
1199 Standard_Integer ideb=1, ifin=myWork.Length();
1200 BRepTools_WireExplorer anExp;
1201
b2342827 1202 // point sections, blocking sections?
7fd59977 1203 if (myDegen1) ideb++;
1204 if (myDegen2) ifin--;
1205 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1206 && (myWork(ideb).IsSame(myWork(ifin)));
1207
1208 Standard_Integer nbSects = myWork.Length(), i;
1209 Standard_Integer nbmax=0, nbmin=0;
1210 TColStd_Array1OfInteger nbEdges(1,nbSects);
1211 for (i=1; i<=nbSects; i++) {
1212 nbEdges(i) = 0;
1213 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1214 nbEdges(i)++;
1215 }
1216 if (i==1) nbmin = nbEdges(i);
1217 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
1218 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
1219 }
1220
1221 if (nbmax>1) {
b2342827 1222 // several edges
7fd59977 1223
1224 if (report || nbmin<nbmax) {
b2342827 1225 // insertion of cuts
7fd59977 1226 Standard_Integer nbdec=(nbmax-1)*nbSects+1;
1227 Standard_Real tol = 0.01;
1228 TColStd_Array1OfReal dec(1,nbdec);
1229 dec.Init(0);
1230 dec(2)=1;
b2342827 1231 // calculate the table of cuts
7fd59977 1232 Standard_Integer j,k,l;
1233 for (i=1; i<=nbSects; i++) {
b2342827 1234 // current wire
7fd59977 1235 const TopoDS_Wire& wire1 = TopoDS::Wire(myWork(i));
1236 Standard_Integer nbE = 0;
1237 for(anExp.Init(wire1); anExp.More(); anExp.Next()) {
1238 nbE++;
1239 }
b2342827 1240 // length and ACR of the wire
7fd59977 1241 TColStd_Array1OfReal ACR(0,nbE);
1242 ACR.Init(0);
1243 BRepFill::ComputeACR(wire1, ACR);
b2342827 1244 // insertion of ACR of the wire in the table of cuts
7fd59977 1245 for (j=1; j<ACR.Length()-1; j++) {
1246 k=1;
1247 while (dec(k)<ACR(j)) {
1248 k++;
1249 if (k>nbdec) break;
1250 }
1251 if (dec(k-1)+tol<ACR(j)&& ACR(j)+tol<dec(k)) {
1252 for (l=nbdec-1;l>=k;l--) {
1253 dec(l+1)=dec(l);
1254 }
1255 dec(k) = ACR(j);
1256 }
1257 }
1258 }
1259
b2342827 1260 // table of cuts
7fd59977 1261 k=1;
1262 while (dec(k)<1) {
1263 k++;
1264 if (k>nbdec) break;
1265 }
1266 nbdec = k-1;
1267 TColStd_Array1OfReal dec2(1,nbdec);
1268 for (k=1;k<=nbdec;k++) {
1269 dec2(k) = dec(k);
1270 }
1271
b2342827 1272 // insertion of cuts in each wire
7fd59977 1273 for (i=1; i<=nbSects; i++) {
1274 const TopoDS_Wire& oldwire = TopoDS::Wire(myWork(i));
1275 TopoDS_Wire newwire = BRepFill::InsertACR(oldwire, dec2, tol);
1276 BRepTools_WireExplorer anExp1,anExp2;
1277 anExp1.Init(oldwire);
1278 anExp2.Init(newwire);
1279 for (;anExp1.More();anExp1.Next()) {
1280 const TopoDS_Edge& Ecur = anExp1.Current();
1281 if (!Ecur.IsSame(TopoDS::Edge(anExp2.Current()))) {
1282 TopTools_ListOfShape LE;
1283 LE.Clear();
1284 gp_Pnt P1,P2;
1285 const TopoDS_Vertex& V1 = anExp1.CurrentVertex();
1286 TopoDS_Vertex VF,VR;
1287 TopExp::Vertices(Ecur,VF,VR,Standard_True);
1288 if (V1.IsSame(VF)) P1 = BRep_Tool::Pnt(VR);
1289 if (V1.IsSame(VR)) P1 = BRep_Tool::Pnt(VF);
1290 TopoDS_Vertex V2 = anExp2.CurrentVertex();
1291 TopExp::Vertices(TopoDS::Edge(anExp2.Current()),
1292 VF,VR,Standard_True);
1293 if (V2.IsSame(VF)) P2 = BRep_Tool::Pnt(VR);
1294 if (V2.IsSame(VR)) P2 = BRep_Tool::Pnt(VF);
1295 while (P1.Distance(P2)>1.e-3) {
1296 LE.Append(anExp2.Current());
1297 anExp2.Next();
1298 V2 = anExp2.CurrentVertex();
1299 TopExp::Vertices(TopoDS::Edge(anExp2.Current()),
1300 VF,VR,Standard_True);
1301 if (V2.IsSame(VF)) P2 = BRep_Tool::Pnt(VR);
1302 if (V2.IsSame(VR)) P2 = BRep_Tool::Pnt(VF);
1303 if (P1.Distance(P2)<=1.e-3) {
1304 LE.Append(anExp2.Current());
1305 anExp2.Next();
1306 }
1307 }
1308
1309 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itmap;
1310 //TopTools_ListIteratorOfListOfShape itlist;
1311 TopoDS_Edge Ancestor;
1312 Standard_Integer nbedge, nblist=0;
1313 Standard_Boolean found = Standard_False;
1314
1315 for (itmap.Initialize(myMap);itmap.More()&&(!found);itmap.Next()) {
1316 nblist++;
1317 TopTools_ListIteratorOfListOfShape itlist(itmap.Value());
1318 nbedge = 0;
1319 while (itlist.More()&&(!found)) {
1320 nbedge++;
1321 TopoDS_Edge ECur = TopoDS::Edge(itlist.Value());
1322
1323 if (Ecur.IsSame(ECur)) {
1324 Ancestor = TopoDS::Edge(itmap.Key());
1325 found = Standard_True;
1326 myMap(Ancestor).InsertBefore(LE,itlist);
1327 myMap(Ancestor).Remove(itlist);
1328 }
1329 if (itlist.More()) itlist.Next();
1330 }
1331
1332 }
1333
1334 }
1335 else {
1336 anExp2.Next();
1337 }
1338
1339 }
1340 myWork(i) = newwire;
1341 }
1342
1343 }
1344 }
1345
b2342827 1346 // blocking sections ?
7fd59977 1347 if (vClosed) myWork(myWork.Length()) = myWork(1);
1348
b2342827 1349 // check the number of edges for debug
7fd59977 1350 nbmax = 0;
1351 for (i=ideb; i<=ifin; i++) {
1352 nbEdges(i) = 0;
1353 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1354 nbEdges(i)++;
1355 }
1356 if (i==ideb) nbmin = nbEdges(i);
1357 if (nbmax<nbEdges(i)) nbmax = nbEdges(i);
1358 if (nbmin>nbEdges(i)) nbmin = nbEdges(i);
1359 }
1360 if (nbmax!=nbmin)
1361 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SameNumberByACR failed");
1362}
1363
1364//=======================================================================
1365//function : ComputeOrigin
1366//purpose :
1367//=======================================================================
1368
1369void BRepFill_CompatibleWires::ComputeOrigin(const Standard_Boolean polar )
1370{
1371 // reorganize the wires respecting orientation and origin
1372
1373 TopoDS_Vertex Vdeb, Vfin;
1374 gp_Pnt Pdeb, Psuiv, PPs;
1375
1376 BRepTools_WireExplorer anExp;
1377
1378 Standard_Boolean wClosed, allClosed = Standard_True;
1379
1380 Standard_Integer NbSects = myWork.Length();
1381 Standard_Integer i, ideb=1,ifin=NbSects;
1382
b2342827 1383 // point sections, blocking sections
7fd59977 1384 if (myDegen1) ideb++;
1385 if (myDegen2) ifin--;
1386 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1387 && (myWork(ideb).IsSame(myWork(ifin)));
1388
1389
1390 for (i=ideb; i<=ifin; i++) {
1391 wClosed = myWork(i).Closed();
1392 if (!wClosed) {
b2342827 1393 // check if the vertices are the same.
7fd59977 1394 TopoDS_Vertex V1, V2;
1395 TopExp::Vertices(TopoDS::Wire(myWork(i)),V1,V2);
1396 if ( V1.IsSame(V2)) wClosed = Standard_True;
1397 }
1398 allClosed = (allClosed && wClosed);
1399 }
1400/*
1401 for (i=ideb; i<=ifin; i++) {
1402 allClosed = (allClosed && myWork(i).Closed());
1403 }
1404*/
1405 if (!allClosed)
1406 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::ComputeOrigin : the wires must be closed");
1407
1408/*
b2342827 1409 // Max number of possible cuts
7fd59977 1410 Standard_Integer NbMaxV = 0;
1411 for (i=1; i<=NbSects; i++) {
1412 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next()) {
1413 NbMaxV++;
1414 }
1415 }
1416
b2342827 1417 // construction of tables of planes of wires
7fd59977 1418 gp_Pln P;
1419 Handle(TColgp_HArray1OfPnt) Pos
1420 = new (TColgp_HArray1OfPnt) (1,NbSects);
1421 Handle(TColgp_HArray1OfVec) Axe
1422 = new (TColgp_HArray1OfVec) (1,NbSects);
1423 for (i=ideb;i<=ifin;i++) {
1424 if (PlaneOfWire(TopoDS::Wire(myWork(i)),P)) {
1425 Pos->SetValue(i,P.Location());
1426 Axe->SetValue(i,gp_Vec(P.Axis().Direction()));
1427 }
1428 }
1429 TopTools_SequenceOfShape SeqV;
1430 if (myDegen1) {
1431 SeqOfVertices(TopoDS::Wire(myWork(1)),SeqV);
1432 Pos->SetValue(1,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
1433 Axe->SetValue(1,Axe->Value(ideb));
1434 }
1435 if (myDegen2) {
1436 SeqOfVertices(TopoDS::Wire(myWork(NbSects)),SeqV);
1437 Pos->SetValue(NbSects,BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(1))));
1438 Axe->SetValue(NbSects,Axe->Value(ifin));
1439 }
1440*/
1441
1442 //Consider that all wires have same number of edges (polar==Standard_False)
1443 TopTools_SequenceOfShape PrevSeq;
7ba3b47c 1444 TopTools_SequenceOfShape PrevEseq;
7fd59977 1445 Standard_Integer theLength = 0;
1446 const TopoDS_Wire& wire = TopoDS::Wire( myWork(ideb) );
1447 for (anExp.Init(wire); anExp.More(); anExp.Next())
1448 {
1449 PrevSeq.Append(anExp.CurrentVertex());
7ba3b47c 1450 PrevEseq.Append(anExp.Current());
7fd59977 1451 theLength++;
1452 }
1453
7ba3b47c
J
1454 Standard_Integer nbs, NbSamples = 0;
1455 if (theLength <= 2)
1456 NbSamples = 4;
7fd59977 1457 for (i = ideb+1; i <= ifin; i++)
1458 {
1459 const TopoDS_Wire& wire = TopoDS::Wire(myWork(i));
1460 TopoDS_Wire newwire;
1461 BRep_Builder BB;
1462 BB.MakeWire(newwire);
1463
1464 TopTools_SequenceOfShape SeqVertices, SeqEdges;
1465 for (anExp.Init(wire); anExp.More(); anExp.Next())
1466 {
1467 SeqVertices.Append( anExp.CurrentVertex() );
1468 SeqEdges.Append( anExp.Current() );
1469 }
1470
1471 Standard_Real MinSumDist = Precision::Infinite();
1472 Standard_Integer jmin, j, k, n;
1473 Standard_Boolean forward;
1474 if (i == myWork.Length() && myDegen2)
1475 {
b2342827 1476 // last point section
7fd59977 1477 jmin = 1;
1478 forward = Standard_True;
1479 }
1480 else
1481 for (j = 1; j <= theLength; j++)
1482 {
1483 //Forward
1484 Standard_Real SumDist = 0.;
1485 for (k = j, n = 1; k <= theLength; k++, n++)
1486 {
1487 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1488 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1489 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1490 gp_Pnt P = BRep_Tool::Pnt(V);
1491 SumDist += Pprev.Distance(P);
7ba3b47c
J
1492 if (NbSamples > 0)
1493 {
1494 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1495 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k));
1496 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1497 BRepAdaptor_Curve Ecurve(CurEdge);
1498 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1499 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1500 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1501 {
1502 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1503 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1504 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1505 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1506 (Ecurve.FirstParameter() + nbs*SampleOnCur) :
1507 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur);
1508 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1509 gp_Pnt PonCur = Ecurve.Value(ParOnCur);
1510 SumDist += PonPrev.Distance(PonCur);
1511 }
1512 }
7fd59977 1513 }
1514 for (k = 1; k < j; k++, n++)
1515 {
1516 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1517 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1518 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1519 gp_Pnt P = BRep_Tool::Pnt(V);
1520 SumDist += Pprev.Distance(P);
7ba3b47c
J
1521 if (NbSamples > 0)
1522 {
1523 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1524 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k));
1525 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1526 BRepAdaptor_Curve Ecurve(CurEdge);
1527 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1528 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1529 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1530 {
1531 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1532 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1533 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1534 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1535 (Ecurve.FirstParameter() + nbs*SampleOnCur) :
1536 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur);
1537 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1538 gp_Pnt PonCur = Ecurve.Value(ParOnCur);
1539 SumDist += PonPrev.Distance(PonCur);
1540 }
1541 }
7fd59977 1542 }
1543 if (SumDist < MinSumDist)
1544 {
1545 MinSumDist = SumDist;
1546 jmin = j;
1547 forward = Standard_True;
1548 }
1549
1550 //Backward
1551 SumDist = 0.;
1552 for (k = j, n = 1; k >= 1; k--, n++)
1553 {
1554 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1555 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1556 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1557 gp_Pnt P = BRep_Tool::Pnt(V);
1558 SumDist += Pprev.Distance(P);
7ba3b47c
J
1559 if (NbSamples > 0)
1560 {
1561 Standard_Integer k_cur = k-1;
1562 if (k_cur == 0)
1563 k_cur = theLength;
1564 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1565 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k_cur));
1566 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1567 BRepAdaptor_Curve Ecurve(CurEdge);
1568 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1569 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1570 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1571 {
1572 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1573 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1574 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1575 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1576 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur) :
1577 (Ecurve.FirstParameter() + nbs*SampleOnCur);
1578 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1579 gp_Pnt PonCur = Ecurve.Value(ParOnCur);
1580 SumDist += PonPrev.Distance(PonCur);
1581 }
1582 }
7fd59977 1583 }
1584 for (k = theLength; k > j; k--, n++)
1585 {
1586 const TopoDS_Vertex& Vprev = TopoDS::Vertex( PrevSeq(n) );
1587 gp_Pnt Pprev = BRep_Tool::Pnt(Vprev);
1588 const TopoDS_Vertex& V = TopoDS::Vertex( SeqVertices(k) );
1589 gp_Pnt P = BRep_Tool::Pnt(V);
1590 SumDist += Pprev.Distance(P);
7ba3b47c
J
1591 if (NbSamples > 0)
1592 {
1593 const TopoDS_Edge& PrevEdge = TopoDS::Edge(PrevEseq(n));
1594 const TopoDS_Edge& CurEdge = TopoDS::Edge(SeqEdges(k-1));
1595 BRepAdaptor_Curve PrevEcurve(PrevEdge);
1596 BRepAdaptor_Curve Ecurve(CurEdge);
1597 Standard_Real SampleOnPrev = (PrevEcurve.LastParameter()-PrevEcurve.FirstParameter())/NbSamples;
1598 Standard_Real SampleOnCur = (Ecurve.LastParameter()-Ecurve.FirstParameter())/NbSamples;
1599 for (nbs = 1; nbs <= NbSamples-1; nbs++)
1600 {
1601 Standard_Real ParOnPrev = (PrevEdge.Orientation() == TopAbs_FORWARD)?
1602 (PrevEcurve.FirstParameter() + nbs*SampleOnPrev) :
1603 (PrevEcurve.FirstParameter() + (NbSamples-nbs)*SampleOnPrev);
1604 Standard_Real ParOnCur = (CurEdge.Orientation() == TopAbs_FORWARD)?
1605 (Ecurve.FirstParameter() + (NbSamples-nbs)*SampleOnCur) :
1606 (Ecurve.FirstParameter() + nbs*SampleOnCur);
1607 gp_Pnt PonPrev = PrevEcurve.Value(ParOnPrev);
1608 gp_Pnt PonCur = Ecurve.Value(ParOnCur);
1609 SumDist += PonPrev.Distance(PonCur);
1610 }
1611 }
7fd59977 1612 }
1613 if (SumDist < MinSumDist)
1614 {
1615 MinSumDist = SumDist;
1616 jmin = j;
1617 forward = Standard_False;
1618 }
1619 }
1620
1621 PrevSeq.Clear();
7ba3b47c 1622 PrevEseq.Clear();
7fd59977 1623 if (forward)
1624 {
1625 for (j = jmin; j <= theLength; j++)
1626 {
1627 BB.Add( newwire, TopoDS::Edge(SeqEdges(j)) );
1628 PrevSeq.Append( SeqVertices(j) );
7ba3b47c 1629 PrevEseq.Append( SeqEdges(j) );
7fd59977 1630 }
1631 for (j = 1; j < jmin; j++)
1632 {
1633 BB.Add( newwire, TopoDS::Edge(SeqEdges(j)) );
1634 PrevSeq.Append( SeqVertices(j) );
7ba3b47c 1635 PrevEseq.Append( SeqEdges(j) );
7fd59977 1636 }
1637 }
1638 else
1639 {
1640 for (j = jmin-1; j >= 1; j--)
1641 {
1642 TopoDS_Shape aLocalShape = SeqEdges(j).Reversed();
1643 BB.Add( newwire, TopoDS::Edge(aLocalShape) );
1644 //PrevSeq.Append( SeqVertices(j) );
7ba3b47c 1645 PrevEseq.Append( SeqEdges(j).Reversed() );
7fd59977 1646 }
1647 for (j = theLength; j >= jmin; j--)
1648 {
1649 TopoDS_Shape aLocalShape = SeqEdges(j).Reversed();
1650 BB.Add( newwire, TopoDS::Edge(aLocalShape) );
1651 //PrevSeq.Append( SeqVertices(j) );
7ba3b47c 1652 PrevEseq.Append( SeqEdges(j).Reversed() );
7fd59977 1653 }
1654 for (j = jmin; j >= 1; j--)
1655 PrevSeq.Append( SeqVertices(j) );
1656 for (j = theLength; j > jmin; j--)
1657 PrevSeq.Append( SeqVertices(j) );
1658 }
1659
1660 newwire.Closed( Standard_True );
1661 newwire.Orientation( TopAbs_FORWARD );
1662 myWork(i) = newwire;
1663 }
1664
1665/*
1666 for ( i=ideb; i<=myWork.Length(); i++) {
1667
1668 const TopoDS_Wire& wire = TopoDS::Wire(myWork(i));
1669
1670 Standard_Integer nbEdges=0;
1671 for(anExp.Init(TopoDS::Wire(myWork(i))); anExp.More(); anExp.Next())
1672 nbEdges++;
1673 TopExp::Vertices(wire,Vdeb,Vfin);
1674 Standard_Boolean wClosed = wire.Closed();
1675 if (!wClosed) {
1676 // on regarde quand meme si les vertex sont les memes.
1677 if ( Vdeb.IsSame(Vfin)) wClosed = Standard_True;
1678 }
1679
1680
1681 TopoDS_Vertex Vsuiv, VF, VR;
1682 TopoDS_Wire newwire;
1683 BRep_Builder BW;
1684 BW.MakeWire(newwire);
1685 if (i==ideb) {
1686 anExp.Init(wire);
1687 const TopoDS_Edge Ecur = TopoDS::Edge(anExp.Current());
1688 TopExp::Vertices(Ecur,VF,VR);
1689 if (Vdeb.IsSame(VF)) Vsuiv=VR;
1690 else if (Vdeb.IsSame(VR)) Vsuiv=VF;
1691 else {
1692 // par defaut on prend l'origine sur cette arete
1693 if (VR.IsSame(TopoDS::Vertex(anExp.CurrentVertex()))) {
1694 Vdeb = VR;
1695 Vsuiv = VF;
1696 }
1697 else {
1698 Vdeb = VF;
1699 Vsuiv = VR;
1700 }
1701 }
1702 Pdeb=BRep_Tool::Pnt(Vdeb);
1703 Psuiv=BRep_Tool::Pnt(Vsuiv);
1704 Standard_Real U1 = BRep_Tool::Parameter(Vdeb,Ecur);
1705 Standard_Real U2 = BRep_Tool::Parameter(Vsuiv,Ecur);
1706 BRepAdaptor_Curve Curve(Ecur);
1707 PPs = Curve.Value(0.25*(U1+3*U2));
1708 myWork(ideb) = wire;
1709 }
1710 else {
1711 // on ramene Pdeb, Psuiv et PPs dans le plan courant
1712 gp_Pnt Pnew,Pnext,PPn;
1713 Transform(Standard_True,Pdeb,Pos->Value(i-1),Axe->Value(i-1),
1714 Pos->Value(i),Axe->Value(i),Pnew);
1715 Transform(Standard_True,Psuiv,Pos->Value(i-1),Axe->Value(i-1),
1716 Pos->Value(i),Axe->Value(i),Pnext);
1717 Transform(Standard_True,PPs,Pos->Value(i-1),Axe->Value(i-1),
1718 Pos->Value(i),Axe->Value(i),PPn);
1719
1720 Standard_Real distmini,dist;
1721 Standard_Integer rang=0,rangdeb=0;
1722 TopoDS_Vertex Vmini;
1723 gp_Pnt Pmini,P1,P2;
1724 SeqOfVertices(wire,SeqV);
1725 if (SeqV.Length()>NbMaxV)
1726 Standard_NoSuchObject::Raise("BRepFill::ComputeOrigin failed");
1727 if (!polar) {
1728 // choix du vertex le plus proche comme origine
1729 distmini = Precision::Infinite();
1730 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
1731 P1 = BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(ii)));
1732 dist = P1.Distance(Pnew);
1733 if (dist<distmini) {
1734 distmini = dist;
1735 Vmini = TopoDS::Vertex(SeqV.Value(ii));
1736 }
1737 }
1738 if (!Vmini.IsNull()) Pmini = BRep_Tool::Pnt(Vmini);
1739 }
1740 else {
1741
1742 // recherche du vertex correspondant a la projection conique
1743 Standard_Real angmin, angV, eta = Precision::Angular();
1744 TopoDS_Vertex Vopti;
1745 angmin = PI/2;
1746 distmini = Precision::Infinite();
1747 gp_Dir dir0(gp_Vec(Pnew,P.Location()));
1748 for (Standard_Integer ii=1;ii<=SeqV.Length();ii++) {
1749 P1 = BRep_Tool::Pnt(TopoDS::Vertex(SeqV.Value(ii)));
1750 dist = Pnew.Distance(P1);
1751 if (dist<Precision::Confusion()) {
1752 angV = 0.0;
1753 }
1754 else {
1755 gp_Dir dir1(gp_Vec(Pnew,P1));
1756 angV = dir1.Angle(dir0);
1757 }
1758 if (angV>PI/2) angV = PI - angV;
1759 if (angmin>angV+eta) {
1760 distmini = dist;
1761 angmin = angV;
1762 Vopti = TopoDS::Vertex(SeqV.Value(ii));
1763 }
1764 else if (Abs(angmin-angV)<eta) {
1765 if (dist<distmini) {
1766 distmini = dist;
1767 angmin = angV;
1768 Vopti = TopoDS::Vertex(SeqV.Value(ii));
1769 }
1770 }
1771 }
1772 gp_Pnt Popti;
1773 if (!Vopti.IsNull()) Popti = BRep_Tool::Pnt(Vopti);
1774 Vmini = Vopti;
1775
1776 }
1777
1778 distmini = Precision::Infinite();
1779 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1780 TopoDS_Edge Ecur = anExp.Current();
1781 TopoDS_Vertex Vcur = anExp.CurrentVertex();
1782 TopExp::Vertices(Ecur,VF,VR);
1783 if (VF.IsSame(Vmini)) {
1784 P1 = BRep_Tool::Pnt(VR);
1785 dist = P1.Distance(Pnext);
1786 if (dist<=distmini) {
1787 distmini = dist;
1788 Vsuiv = VR;
1789 }
1790 }
1791 if (VR.IsSame(Vmini)) {
1792 P1 = BRep_Tool::Pnt(VF);
1793 dist = P1.Distance(Pnext);
1794 if (dist<distmini) {
1795 distmini = dist;
1796 Vsuiv = VF;
1797 }
1798 }
1799 }
1800
1801 // choix du sens de parcours en fonction de Pnext
1802 Standard_Boolean parcours = Standard_False;
1803 if (i==myWork.Length() && myDegen2) {
1804 // derniere section ponctuelle
1805 rangdeb = 1;
1806 parcours = Standard_True;
1807 }
1808 else {
1809 // cas general
1810 gp_Pnt Pbout = Pnext;
1811 TopoDS_Edge E1,E2;
1812 TopoDS_Vertex V1,V2;
1813 EdgesFromVertex(wire,Vmini,E1,E2);
1814
1815 TopExp::Vertices(E1,V1,V2,Standard_True);
1816#ifndef DEB
1817 Standard_Real U1=0, U2=0;
1818#else
1819 Standard_Real U1, U2;
1820#endif
1821 if (Vmini.IsSame(V1)) {
1822 P1 = BRep_Tool::Pnt(V2);
1823 U1 = 0.25*(BRep_Tool::Parameter(V1,E1)+3*BRep_Tool::Parameter(V2,E1));
1824 }
1825 if (Vmini.IsSame(V2)) {
1826 P1 = BRep_Tool::Pnt(V1);
1827 U1 = 0.25*(3*BRep_Tool::Parameter(V1,E1)+BRep_Tool::Parameter(V2,E1));
1828 }
1829
1830 TopExp::Vertices(E2,V1,V2,Standard_True);
1831 if (Vmini.IsSame(V1)) {
1832 P2 = BRep_Tool::Pnt(V2);
1833 U2 = 0.25*(BRep_Tool::Parameter(V1,E2)+3*BRep_Tool::Parameter(V2,E2));
1834 }
1835 if (Vmini.IsSame(V2)) {
1836 P2 = BRep_Tool::Pnt(V1);
1837 U2 = 0.25*(3*BRep_Tool::Parameter(V1,E2)+BRep_Tool::Parameter(V2,E2));
1838 }
1839
1840 if (Abs(Pbout.Distance(P1)-Pbout.Distance(P2))<Precision::Confusion()) {
1841 // cas limite ; on se decale un peu
1842 Pbout = PPn;
1843 BRepAdaptor_Curve Curve1(E1);
1844 P1 = Curve1.Value(U1);
1845 BRepAdaptor_Curve Curve2(E2);
1846 P2 = Curve2.Value(U2);
1847 }
1848
1849 // calcul de rangdeb
1850 rangdeb = 0;
1851 if (Pbout.Distance(P1)<Pbout.Distance(P2)){
1852 // P1 est plus proche; parcours = False
1853 parcours = Standard_False;
1854 rang = 0;
1855 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1856 rang++;
1857 TopoDS_Edge Ecur = anExp.Current();
1858 if (E1.IsSame(Ecur)) {
1859 rangdeb = rang;
1860 }
1861 }
1862 BRepAdaptor_Curve Curve(E1);
1863 PPs = Curve.Value(U1);
1864 }
1865 else {
1866 // P2 est plus proche; parcours = True
1867 parcours = Standard_True;
1868 rang = 0;
1869 for (anExp.Init(wire); anExp.More(); anExp.Next()) {
1870 rang++;
1871 TopoDS_Edge Ecur = anExp.Current();
1872 if (E2.IsSame(Ecur)) {
1873 rangdeb = rang;
1874 }
1875 }
1876 BRepAdaptor_Curve Curve(E2);
1877 PPs = Curve.Value(U2);
1878 }
1879 }
1880
1881 // reconstruction du wire a partir de rangdeb
1882 TopTools_SequenceOfShape SeqEdges;
1883 SeqEdges.Clear();
1884 for (anExp.Init(TopoDS::Wire(wire)); anExp.More(); anExp.Next()) {
1885 SeqEdges.Append(anExp.Current());
1886 }
1887 if (parcours) {
1888 for (rang=rangdeb;rang<=nbEdges;rang++) {
1889 BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
1890 }
1891 for (rang=1;rang<rangdeb;rang++) {
1892 BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
1893 }
1894 }
1895 else {
1896 for (rang=rangdeb;rang>=1;rang--) {
1897 TopoDS_Shape aLocalShape = SeqEdges.Value(rang).Reversed();
1898 BW.Add(newwire,TopoDS::Edge(aLocalShape));
1899// BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
1900 }
1901 for (rang=nbEdges;rang>rangdeb;rang--) {
1902 TopoDS_Shape aLocalShape = SeqEdges.Value(rang).Reversed();
1903 BW.Add(newwire,TopoDS::Edge(aLocalShape));
1904// BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
1905 }
1906 }
1907
1908 myWork(i) = newwire.Oriented(TopAbs_FORWARD);
1909
1910 // on passe au wire suivant
1911 if (!Vmini.IsNull()) Pdeb=BRep_Tool::Pnt(Vmini);
1912 if (!Vsuiv.IsNull()) Psuiv=BRep_Tool::Pnt(Vsuiv);
1913 }
1914 }
1915*/
1916
b2342827 1917 // blocking sections ?
7fd59977 1918 if (vClosed) myWork(myWork.Length()) = myWork(1);
1919}
1920
1921//=======================================================================
1922//function : SearchOrigin
1923//purpose :
1924//=======================================================================
1925
1926void BRepFill_CompatibleWires::SearchOrigin()
1927{
1928 // reorganize the open wires respecting orientation and origin
1929
1930 gp_Pln P0,P;
1931
1932 TopoDS_Vertex Vdeb, Vfin;
1933 gp_Pnt Pdeb, Pfin;//,Psuiv;
1934
1935 BRepTools_WireExplorer anExp;
1936
1937 Standard_Boolean allOpen = Standard_True;
1938 Standard_Integer ideb=1, ifin=myWork.Length();
1939 if (myDegen1) ideb++;
1940 if (myDegen2) ifin--;
1941 Standard_Boolean vClosed = (!myDegen1) && (!myDegen2)
1942 && (myWork(ideb).IsSame(myWork(ifin)));
1943
1944// for (Standard_Integer i=ideb; i<=ifin; i++) {
1945 Standard_Integer i;
1946 for (i=ideb; i<=ifin; i++) {
1947 allOpen = (allOpen && !myWork(i).Closed());
1948 }
1949 if (!allOpen)
1950 Standard_NoSuchObject::Raise("BRepFill_CompatibleWires::SearchOrigin : the wires must be open");
1951
1952 // init
1953
1954 TopoDS_Wire wire1 = TopoDS::Wire(myWork(ideb));
1955 wire1.Orientation(TopAbs_FORWARD);
1956 TopExp::Vertices(wire1,Vdeb,Vfin);
1957 Pdeb = BRep_Tool::Pnt(Vdeb);
1958 Pfin = BRep_Tool::Pnt(Vfin);
1959 Standard_Boolean isline0 = (!PlaneOfWire(wire1,P0)), isline;
1960 myWork(ideb) = wire1;
1961 //OCC86
1962 anExp.Init(wire1);
1963 TopoDS_Edge E0 = anExp.Current(), E;
1964
1965 for ( i=ideb+1; i<=ifin; i++) {
1966
1967 TopoDS_Wire wire = TopoDS::Wire(myWork(i));
1968 wire.Orientation(TopAbs_FORWARD);
1969
1970 TopTools_SequenceOfShape SeqEdges;
1971 SeqEdges.Clear();
1972 Standard_Integer nbEdges=0;
1973 //OCC86 for(anExp.Init(wire); anExp.More(); anExp.Next()) {
1974 for(anExp.Init(wire), E = anExp.Current(); anExp.More(); anExp.Next()) {
1975 SeqEdges.Append(anExp.Current());
1976 nbEdges++;
1977 }
1978 TopExp::Vertices(wire,Vdeb,Vfin);
1979 isline = (!PlaneOfWire(wire,P));
1980
1981 TopoDS_Vertex Vmini;
1982 TopoDS_Wire newwire;
1983 BRep_Builder BW;
1984 BW.MakeWire(newwire);
1985 Standard_Boolean parcours = Standard_True;
1986
1987 if (isline0 || isline) {
1988
b2342827 1989 // particular case of straight segments
7fd59977 1990 gp_Pnt P1 = BRep_Tool::Pnt(Vdeb),
1991 P2 = BRep_Tool::Pnt(Vfin);
1992 Standard_Real dist1, dist2;
1993 dist1 = Pdeb.Distance(P1)+Pfin.Distance(P2);
1994 dist2 = Pdeb.Distance(P2)+Pfin.Distance(P1);
1995 parcours = (dist2>=dist1);
1996 }
1997
1998 else {
1999 //OCC86
2000 gp_Pnt P1 = BRep_Tool::Pnt(Vdeb), P1o = Pdeb,
2001 P2 = BRep_Tool::Pnt(Vfin), P2o = Pfin;
b2342827 2002/* // return Pdeb in the current plane
7fd59977 2003 gp_Pnt Pnew = Pdeb.Translated (P0.Location(),P.Location());
2004 gp_Ax1 A0 = P0.Axis();
2005 gp_Ax1 A1 = P.Axis();
2006
2007 if (!A0.IsParallel(A1,1.e-4)) {
2008 gp_Vec vec1(A0.Direction()), vec2(A1.Direction()),
2009 norm = vec1 ^ vec2;
2010 gp_Ax1 Norm(P.Location(),norm);
2011 Standard_Real ang = vec1.AngleWithRef(vec2,norm);
2012 if (ang > PI/2.0)
2013 ang = PI - ang;
2014 if (ang < -PI/2.0)
2015 ang = -PI - ang;
2016 if (Abs(ang-PI/2.0)<Precision::Angular()) {
2017 // cas d'ambiguite
2018 gp_Vec Vtrans(P0.Location(),P.Location()),Vsign;
2019 Standard_Real alpha,beta,sign=1;
2020 Vsign.SetLinearForm(Vtrans.Dot(vec1),vec2,-Vtrans.Dot(vec2),vec1);
2021 alpha = Vsign.Dot(vec1);
2022 beta = Vsign.Dot(vec2);
2023 Standard_Boolean pasnul = (Abs(alpha)>1.e-4 && Abs(beta)>1.e-4);
2024 if ( alpha*beta>0.0 && pasnul ) sign=-1;
2025 ang *= sign;
2026 }
2027 Pnew = Pnew.Rotated (Norm,ang);
2028 }
2029 // choix entre Vdeb et Vfin
2030 Standard_Real dist = Pnew.Distance(P1);
2031 parcours = (dist<Pnew.Distance(P2));
2032*/
2033 if(P1.IsEqual(P2,Precision::Confusion()) || P1o.IsEqual(P2o,Precision::Confusion())){
2034 BRepAdaptor_Curve Curve0(E0), Curve(E);
2035 Curve0.D0(Curve0.FirstParameter() + Precision::Confusion(), P2o);
2036 Curve.D0(Curve.FirstParameter() + Precision::Confusion(), P2);
2037 };
2038 gp_Vec VDebFin0(P1o,P2o), VDebFin(P1,P2);
2039 Standard_Real AStraight = VDebFin0.Angle(VDebFin);
2040 parcours = (AStraight < PI/2.0? Standard_True: Standard_False);
2041 }
2042
b2342827 2043 // reconstruction of the wire
7fd59977 2044 Standard_Integer rang;
2045 if (parcours) {
2046 for (rang=1;rang<=nbEdges;rang++) {
2047 TopoDS_Shape alocalshape = SeqEdges.Value(rang);
2048 BW.Add(newwire,TopoDS::Edge(alocalshape));
2049// BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang)));
2050 }
2051 }
2052 else {
2053 for (rang=nbEdges;rang>=1;rang--) {
2054 TopoDS_Shape alocalshape = SeqEdges.Value(rang).Reversed();
2055 BW.Add(newwire,TopoDS::Edge(alocalshape));
2056// BW.Add(newwire,TopoDS::Edge(SeqEdges.Value(rang).Reversed()));
2057 }
2058 }
2059
b2342827 2060 // orientation of the wire
7fd59977 2061 newwire.Oriented(TopAbs_FORWARD);
2062 myWork(i) = newwire;
2063
b2342827 2064 // passe to the next wire
7fd59977 2065 if (parcours) {
2066 Pdeb = BRep_Tool::Pnt(Vdeb);
2067 Pfin = BRep_Tool::Pnt(Vfin);
2068 }
2069 else {
2070 Pfin = BRep_Tool::Pnt(Vdeb);
2071 Pdeb = BRep_Tool::Pnt(Vfin);
2072 }
2073 P0 = P;
2074 isline0 = isline;
2075 //OCC86
2076 E0 = E;
2077 }
2078
b2342827 2079 // blocking sections ?
7fd59977 2080 if (vClosed) myWork(myWork.Length()) = myWork(1);
2081}