Eliminating instability in test cases
[occt.git] / src / BRepFill / BRepFill_OffsetWire.cxx
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b311480e 1// Created on: 1995-04-20
2// Created by: Bruno DUMORTIER
3// Copyright (c) 1995-1999 Matra Datavision
973c2be1 4// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 5//
973c2be1 6// This file is part of Open CASCADE Technology software library.
b311480e 7//
d5f74e42 8// This library is free software; you can redistribute it and/or modify it under
9// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 10// by the Free Software Foundation, with special exception defined in the file
11// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12// distribution for complete text of the license and disclaimer of any warranty.
b311480e 13//
973c2be1 14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
7fd59977 16
17// Modified by skv - Fri Jul 8 11:21:38 2005 OCC9145
18
19#include <stdio.h>
20
21#include <BRepFill_OffsetWire.ixx>
22
23#include <BRepAdaptor_Curve.hxx>
24#include <BRepAdaptor_Surface.hxx>
25
26#include <BRepFill_DataMapOfNodeShape.hxx>
27#include <BRepFill_DataMapOfShapeSequenceOfPnt.hxx>
28#include <BRepFill_DataMapOfShapeSequenceOfReal.hxx>
29#include <BRepFill_DataMapOfOrientedShapeListOfShape.hxx>
7fd59977 30#include <BRepFill_TrimEdgeTool.hxx>
31#include <BRepLib.hxx>
32#include <BRepLib_MakeVertex.hxx>
33#include <BRepLib_MakeFace.hxx>
34#include <BRepLib_MakeWire.hxx>
35#include <BRepLib_MakeEdge.hxx>
36#include <BRepTools.hxx>
37#include <BRep_Builder.hxx>
38#include <BRep_Tool.hxx>
39#include <BRep_TEdge.hxx>
40#include <BRep_CurveRepresentation.hxx>
41#include <BRep_GCurve.hxx>
42#include <BRepTools_WireExplorer.hxx>
43#include <BRepMAT2d_Explorer.hxx>
44#include <Geom2dAdaptor_Curve.hxx>
45#include <Geom2dAdaptor_HCurve.hxx>
46#include <Adaptor3d_OffsetCurve.hxx>
47#include <Adaptor3d_Curve.hxx>
48#include <Geom_Surface.hxx>
49#include <Geom_Plane.hxx>
50#include <Geom2d_Curve.hxx>
51#include <Geom2d_Circle.hxx>
52#include <Geom2d_Line.hxx>
53#include <Geom2d_TrimmedCurve.hxx>
54#include <Geom2d_OffsetCurve.hxx>
55#include <GeomAPI.hxx>
56#include <Geom_TrimmedCurve.hxx>
57#include <Geom_Circle.hxx>
6a442250 58#include <Geom_Line.hxx>
7fd59977 59#include <Geom_OffsetCurve.hxx>
60#include <MAT_Arc.hxx>
61#include <MAT_Node.hxx>
62#include <MAT_Graph.hxx>
63#include <MAT2d_CutCurve.hxx>
64#include <Precision.hxx>
65#include <Standard_NotImplemented.hxx>
66#include <TColgp_SequenceOfPnt.hxx>
67#include <TColStd_SequenceOfReal.hxx>
68#include <TopAbs.hxx>
69#include <TopExp.hxx>
70#include <TopExp_Explorer.hxx>
71#include <TopoDS.hxx>
72#include <TopoDS_Wire.hxx>
73#include <TopoDS_Compound.hxx>
74#include <TopoDS_Iterator.hxx>
75#include <TopTools_MapOfShape.hxx>
76#include <TopTools_MapIteratorOfMapOfShape.hxx>
77#include <TopTools_ListIteratorOfListOfShape.hxx>
78#include <TopTools_DataMapOfShapeListOfShape.hxx>
79#include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
80#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
81#include <TopTools_SequenceOfShape.hxx>
82#include <TopTools_ListOfShape.hxx>
83#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
84#include <TopTools_DataMapOfShapeSequenceOfShape.hxx>
85
86#include <gp.hxx>
87#include <gp_Vec.hxx>
88#include <gp_Ax2.hxx>
89#include <gp_Pln.hxx>
90#include <gp_Dir2d.hxx>
91
92#include <BRep_TVertex.hxx>
93#include <TopTools_IndexedMapOfShape.hxx>
94#include <Geom2d_BSplineCurve.hxx>
95#include <TColgp_Array1OfPnt2d.hxx>
96#include <TColStd_Array1OfReal.hxx>
97#include <TColStd_Array1OfInteger.hxx>
98#include <BRepTools_Substitution.hxx>
99#include <BRepLib_MakeVertex.hxx>
100#include <Geom2dLProp_CLProps2d.hxx>
101#include <Geom2dConvert_CompCurveToBSplineCurve.hxx>
102#include <Standard_ErrorHandler.hxx>
873c119f 103#ifdef OCCT_DEBUG
104//#define DRAW
7fd59977 105#ifdef DRAW
106#include <Draw.hxx>
107#include <DrawTrSurf.hxx>
108#include <DrawTrSurf_Curve2d.hxx>
109#include <DBRep.hxx>
7fd59977 110static Standard_Boolean AffichGeom = Standard_False;
111static Standard_Boolean Affich2d = Standard_False;
112static Standard_Boolean AffichEdge = Standard_False;
113static Standard_Integer NbTRIMEDGES = 0;
114static Standard_Integer NbOFFSET = 0;
115static Standard_Integer NbEDGES = 0;
116static Standard_Integer NbBISSEC = 0;
7fd59977 117#endif
873c119f 118#endif
7fd59977 119
120// Modified by Sergey KHROMOV - Thu Nov 16 17:24:39 2000 Begin
121
122static void QuasiFleche(const Adaptor3d_Curve& C,
873c119f 123 const Standard_Real Deflection2,
124 const Standard_Real Udeb,
125 const gp_Pnt& Pdeb,
126 const gp_Vec& Vdeb,
127 const Standard_Real Ufin,
128 const gp_Pnt& Pfin,
129 const gp_Vec& Vfin,
130 const Standard_Integer Nbmin,
131 const Standard_Real Eps,
132 TColStd_SequenceOfReal& Parameters,
133 TColgp_SequenceOfPnt& Points);
7fd59977 134
135static Standard_Boolean PerformCurve (TColStd_SequenceOfReal& Parameters,
873c119f 136 TColgp_SequenceOfPnt& Points,
137 const Adaptor3d_Curve& C,
138 const Standard_Real Deflection,
139 const Standard_Real U1,
140 const Standard_Real U2,
141 const Standard_Real EPSILON,
142 const Standard_Integer Nbmin);
7fd59977 143
144static void CheckBadEdges(const TopoDS_Face& Spine, const Standard_Real Offset,
873c119f 145 const BRepMAT2d_BisectingLocus& Locus,
146 const BRepMAT2d_LinkTopoBilo& Link,
147 TopTools_ListOfShape& BadEdges);
7fd59977 148
149static Standard_Integer CutEdge (const TopoDS_Edge& E,
873c119f 150 const TopoDS_Face& F,
151 Standard_Integer ForceCut,
152 TopTools_ListOfShape& Cuts);
7fd59977 153
154
155static void CutCurve (const Handle(Geom2d_TrimmedCurve)& C,
873c119f 156 const Standard_Integer nbParts,
157 TColGeom2d_SequenceOfCurve& theCurves);
7fd59977 158// Modified by Sergey KHROMOV - Thu Nov 16 17:24:47 2000 End
159
160
161static void EdgeVertices (const TopoDS_Edge& E,
873c119f 162 TopoDS_Vertex& V1,
163 TopoDS_Vertex& V2)
7fd59977 164{
165 if (E.Orientation() == TopAbs_REVERSED) {
166 TopExp::Vertices(E,V2,V1);
167 }
168 else {
169 TopExp::Vertices(E,V1,V2);
170 }
171}
7fd59977 172static Standard_Boolean VertexFromNode
873c119f 173 (const Handle(MAT_Node)& aNode,
174 const Standard_Real Offset,
175 gp_Pnt2d& PN,
176 BRepFill_DataMapOfNodeShape& MapNodeVertex,
177 TopoDS_Vertex& VN);
7fd59977 178
179static void StoreInMap (const TopoDS_Shape& V1,
873c119f 180 const TopoDS_Shape& V2,
181 TopTools_IndexedDataMapOfShapeShape& MapVV);
7fd59977 182
183static void TrimEdge (const TopoDS_Edge& CurrentEdge,
e11c1bc4 184 const TopoDS_Shape& CurrentSpine,
185 const TopoDS_Face& AllSpine,
873c119f 186 const TopTools_ListOfShape& D,
6a442250 187 TopTools_SequenceOfShape& Sv,
188 TColStd_SequenceOfReal& MapverPar,
189 TopTools_SequenceOfShape& S,
190 TopTools_IndexedDataMapOfShapeShape& MapVV,
191 const Standard_Integer IndOfE);
7fd59977 192
e11c1bc4 193static Standard_Boolean IsInnerEdge(const TopoDS_Shape& ProE,
194 const TopoDS_Face& AllSpine,
195 Standard_Real& TrPar1,
196 Standard_Real& TrPar2);
197
7fd59977 198static Standard_Boolean DoubleOrNotInside (const TopTools_ListOfShape& EC,
873c119f 199 const TopoDS_Vertex& V);
7fd59977 200
201static Standard_Boolean IsSmallClosedEdge(const TopoDS_Edge& anEdge,
873c119f 202 const TopoDS_Vertex& aVertex);
7fd59977 203
204static void MakeCircle
873c119f 205 (const TopoDS_Edge& E,
206 const TopoDS_Vertex& V,
207 const TopoDS_Face& F,
208 const Standard_Real Offset,
209 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
210 const Handle(Geom_Plane)& RefPlane);
7fd59977 211
212static void MakeOffset
873c119f 213 (const TopoDS_Edge& E,
214 const TopoDS_Face& F,
215 const Standard_Real Offset,
216 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
217 const Handle(Geom_Plane)& RefPlane,
218 const Standard_Boolean IsOpenResult,
c7806cb6 219 const GeomAbs_JoinType theJoinType,
873c119f 220 const TopoDS_Vertex * Ends);
7fd59977 221
222//=======================================================================
223//function : KPartCircle
224//purpose :
225//=======================================================================
226
227static Standard_Boolean KPartCircle
873c119f 228 (const TopoDS_Face& mySpine,
229 const Standard_Real myOffset,
230 const Standard_Boolean IsOpenResult,
231 const Standard_Real Alt,
232 TopoDS_Shape& myShape,
233 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& myMap,
234 Standard_Boolean& myIsDone)
7fd59977 235{
7fd59977 236 TopExp_Explorer exp(mySpine,TopAbs_EDGE);
237 Standard_Integer NbEdges = 0;
238 TopoDS_Edge E;
239
240 for (; exp.More(); exp.Next()) {
241 NbEdges++;
242 E = TopoDS::Edge(exp.Current());
243 if (NbEdges > 1) return Standard_False;
244 }
7fd59977 245
246 Standard_Real f,l;
247 TopLoc_Location L;
248 Handle(Geom_Curve) C = BRep_Tool::Curve(E,L,f,l);
249
250 if (C->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
251 Handle(Geom_TrimmedCurve) Ct = Handle(Geom_TrimmedCurve)::DownCast(C);
252 C = Ct->BasisCurve();
253 }
254
da72a17c 255 if ((C->IsKind(STANDARD_TYPE(Geom_Circle)) && BRep_Tool::IsClosed(E)) || //closed circle
e11c1bc4 256 IsOpenResult)
6a442250 257 {
6a442250 258 Standard_Real anOffset = myOffset;
6a442250 259
0e0f7a7c 260 Handle(Geom2d_Curve) aPCurve = BRep_Tool::CurveOnSurface(E, mySpine, f, l);
6a442250 261 Handle(Geom2dAdaptor_HCurve) AHC = new Geom2dAdaptor_HCurve(aPCurve, f, l);
0e0f7a7c 262 Handle(Geom2d_Curve) OC;
263 if (AHC->GetType() == GeomAbs_Line)
264 {
ef237d73 265 if (E.Orientation() == TopAbs_REVERSED)
266 anOffset *= -1;
0e0f7a7c 267 Adaptor3d_OffsetCurve Off(AHC,anOffset);
268 OC = new Geom2d_Line(Off.Line());
269 }
270 else if (AHC->GetType() == GeomAbs_Circle)
271 {
ef237d73 272 if (E.Orientation() == TopAbs_FORWARD)
273 anOffset *= -1;
0e0f7a7c 274 gp_Circ2d theCirc = AHC->Circle();
c7806cb6 275 if (anOffset > 0. || Abs(anOffset) < theCirc.Radius())
276 OC = new Geom2d_Circle (theCirc.Position(), theCirc.Radius() + anOffset);
277 else
278 {
279 myIsDone = Standard_False;
280 return Standard_False;
873c119f 281 }
0e0f7a7c 282 }
283 else
284 {
ef237d73 285 if (E.Orientation() == TopAbs_FORWARD)
286 anOffset *= -1;
0e0f7a7c 287 Handle(Geom2d_TrimmedCurve) G2dT = new Geom2d_TrimmedCurve(aPCurve, f, l);
288 OC = new Geom2d_OffsetCurve( G2dT, anOffset);
289 }
290 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(mySpine);
6a442250 291 Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(aSurf);
0e0f7a7c 292 myShape = BRepLib_MakeEdge(OC, aPlane, f, l);
6a442250 293 BRepLib::BuildCurve3d(TopoDS::Edge(myShape));
294
295 myShape.Orientation(E.Orientation());
296 myShape.Location(L);
297 if (Alt != 0.) {
298 BRepAdaptor_Surface S(mySpine,0);
299 gp_Ax1 Nor = S.Plane().Axis();
300 gp_Trsf T;
301 gp_Vec Trans(Nor.Direction());
302 Trans = Alt*Trans;
303 T.SetTranslation(Trans);
304 myShape.Move(TopLoc_Location(T));
305 }
306
307 TopTools_ListOfShape LL;
308 LL.Append(myShape);
309 myMap.Add(E,LL);
310
311 TopoDS_Edge myEdge = TopoDS::Edge(myShape);
312 myShape = BRepLib_MakeWire(myEdge);
313
314 myIsDone = Standard_True;
315 return Standard_True;
316 }
7fd59977 317
0e0f7a7c 318 return Standard_False;
7fd59977 319}
320
321//=======================================================================
322//function : BRepFill_OffsetWire
323//purpose :
324//=======================================================================
325
326BRepFill_OffsetWire::BRepFill_OffsetWire()
6a442250 327 : myIsOpenResult(Standard_False),
328 myIsDone(Standard_False)
7fd59977 329{
330}
331
332
333//=======================================================================
334//function : BRepFill_OffsetWire
335//purpose :
336//=======================================================================
337
338BRepFill_OffsetWire::BRepFill_OffsetWire(const TopoDS_Face& Spine,
873c119f 339 const GeomAbs_JoinType Join,
340 const Standard_Boolean IsOpenResult)
7fd59977 341{
6a442250 342 Init(Spine,Join,IsOpenResult);
7fd59977 343}
344
7fd59977 345//=======================================================================
346//function : Init
347//purpose :
348//=======================================================================
349
350void BRepFill_OffsetWire::Init(const TopoDS_Face& Spine,
873c119f 351 const GeomAbs_JoinType Join,
352 const Standard_Boolean IsOpenResult)
7fd59977 353{
7fd59977 354 myIsDone = Standard_False;
355 TopoDS_Shape aLocalShape = Spine.Oriented(TopAbs_FORWARD);
356 mySpine = TopoDS::Face(aLocalShape);
873c119f 357 // mySpine = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
7fd59977 358 myJoinType = Join;
6a442250 359 myIsOpenResult = IsOpenResult;
873c119f 360
7fd59977 361 myMap.Clear();
362 myMapSpine.Clear();
363 //------------------------------------------------------------------
0d969553 364 // cut the spine for bissectors.
7fd59977 365 //------------------------------------------------------------------
873c119f 366 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 Begin
7fd59977 367 static BRepMAT2d_Explorer Exp;
368
369 Exp.Perform(mySpine);
370
873c119f 371 // TopoDS_Face anOldSpine = mySpine;
7fd59977 372
373 mySpine = TopoDS::Face(Exp.ModifiedShape(mySpine));
374 PrepareSpine ();
375
873c119f 376 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 End
7fd59977 377 TopoDS_Shape aShape;
86b3805f 378 BRepFill_IndexedDataMapOfOrientedShapeListOfShape aMap;
7fd59977 379 Standard_Boolean Done;
e11c1bc4 380 if (KPartCircle(myWorkSpine,1.,myIsOpenResult,0.,aShape,aMap,Done)) return;
873c119f 381
7fd59977 382
383 //-----------------------------------------------------
0d969553
Y
384 // Calculate the map of bissectors to the left.
385 // and Links Topology -> base elements of the map.
7fd59977 386 //-----------------------------------------------------
387
873c119f 388 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 Begin
389 // static BRepMAT2d_Explorer Exp;
390 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 End
7fd59977 391 Exp.Perform(myWorkSpine);
c19dd45e 392 myBilo.Compute(Exp, 1 ,MAT_Left, myJoinType, myIsOpenResult);
873c119f 393 myLink.Perform(Exp,myBilo);
7fd59977 394}
395
396
397//=======================================================================
398//function : IsDone
399//purpose :
400//=======================================================================
401
402Standard_Boolean BRepFill_OffsetWire::IsDone() const
403{
404 return myIsDone;
405}
406
407
408//=======================================================================
409//function : Spine
410//purpose :
411//=======================================================================
412
413const TopoDS_Face& BRepFill_OffsetWire::Spine() const
414{
415 return mySpine;
416}
417
418
419//=======================================================================
420//function : Shape
421//purpose :
422//=======================================================================
423
424const TopoDS_Shape& BRepFill_OffsetWire::Shape() const
425{
426 return myShape;
427}
428
429
430//=======================================================================
431//function : GeneratedShapes
432//purpose :
433//=======================================================================
434
435const TopTools_ListOfShape& BRepFill_OffsetWire::GeneratedShapes
873c119f 436 (const TopoDS_Shape& SpineShape)
7fd59977 437{
438 if (!myCallGen) {
439 if (!myMapSpine.IsEmpty()) {
0d969553 440 // myMapSpine can be empty if passed by PerformWithBilo.
7fd59977 441 TopTools_DataMapIteratorOfDataMapOfShapeShape it(myMapSpine);
442 for (; it.More(); it.Next()) {
86b3805f
J
443 if (myMap.Contains(it.Key())) {
444 if (!myMap.Contains(it.Value())) {
7fd59977 445 TopTools_ListOfShape L;
86b3805f 446 myMap.Add(it.Value(),L);
7fd59977 447 }
448 if ( !it.Value().IsSame(it.Key())) {
86b3805f
J
449 myMap.ChangeFromKey(it.Value()).Append(myMap.ChangeFromKey(it.Key()));
450 //myMap.UnBind(it.Key());
451 TopoDS_Shape LastShape = myMap.FindKey(myMap.Extent());
452 TopTools_ListOfShape LastList;
453 LastList.Append(myMap(myMap.Extent()));
454 myMap.RemoveLast();
455 if (myMap.FindIndex(it.Key()) != 0)
456 myMap.Substitute(myMap.FindIndex(it.Key()), LastShape, LastList);
7fd59977 457 }
458 }
86b3805f
J
459 if (myMap.Contains(it.Key().Reversed())) {
460 if (!myMap.Contains(it.Value().Reversed())) {
7fd59977 461 TopTools_ListOfShape L;
86b3805f 462 myMap.Add(it.Value().Reversed(),L);
7fd59977 463 }
464 if ( !it.Value().IsSame(it.Key())) {
86b3805f
J
465 myMap.ChangeFromKey(it.Value().Reversed()).Append(myMap.ChangeFromKey(it.Key().Reversed()));
466 //myMap.UnBind(it.Key().Reversed());
467 TopoDS_Shape LastShape = myMap.FindKey(myMap.Extent());
468 TopTools_ListOfShape LastList;
469 LastList.Append(myMap(myMap.Extent()));
470 myMap.RemoveLast();
471 if (myMap.FindIndex(it.Key().Reversed()) != 0)
472 myMap.Substitute(myMap.FindIndex(it.Key().Reversed()), LastShape, LastList);
7fd59977 473 }
474 }
475 }
476 }
477 myCallGen = Standard_True;
478 }
873c119f 479
86b3805f
J
480 if (myMap.Contains(SpineShape)) {
481 return myMap.FindFromKey(SpineShape);
7fd59977 482 }
483 else {
484 static TopTools_ListOfShape Empty;
485 return Empty;
486 }
487}
488
489
490//=======================================================================
491//function : JoinType
492//purpose :
493//=======================================================================
494
495GeomAbs_JoinType BRepFill_OffsetWire::JoinType() const
496{
497 return myJoinType;
498}
499
500//=======================================================================
501//function : Perform
502//purpose :
503//=======================================================================
504
505void BRepFill_OffsetWire::Perform (const Standard_Real Offset,
873c119f 506 const Standard_Real Alt)
7fd59977 507{
91bb31f3 508 // Modified by skv - Fri Jul 8 11:21:38 2005 OCC9145 Begin
509 try
510 {
7fd59977 511 OCC_CATCH_SIGNALS
91bb31f3 512 myCallGen = Standard_False;
e11c1bc4 513 if (KPartCircle(myWorkSpine,Offset,myIsOpenResult,Alt,myShape,myMap,myIsDone)) return;
7fd59977 514
515 TopoDS_Face oldWorkSpain = myWorkSpine;
516
517 TopTools_ListOfShape BadEdges;
518 CheckBadEdges(myWorkSpine,Offset,myBilo,myLink,BadEdges);
519
91bb31f3 520 if(!BadEdges.IsEmpty())
521 {
7fd59977 522 // Modification of myWorkSpine;
523 //cout << "Modification of myWorkSpine : " << BadEdges.Extent() << endl;
524 BRepTools_Substitution aSubst;
525 TopTools_ListIteratorOfListOfShape it(BadEdges);
526 TopTools_ListOfShape aL;
527 Standard_Real aDefl = .01 * Abs(Offset);
528 TColStd_SequenceOfReal Parameters;
529 TColgp_SequenceOfPnt Points;
530
531 for(; it.More(); it.Next()) {
91bb31f3 532 aL.Clear();
533 Parameters.Clear();
534 Points.Clear();
535 const TopoDS_Shape& anE = it.Value();
536
537 TopoDS_Vertex Vf, Vl;
538 TopExp::Vertices(TopoDS::Edge(anE), Vf, Vl);
539
540 Standard_Real f, l;
541 Handle(Geom_Curve) G3d = BRep_Tool::Curve(TopoDS::Edge(anE),f,l);
542 GeomAdaptor_Curve AC(G3d,f,l);
543
544 PerformCurve(Parameters, Points, AC, aDefl, f,
873c119f 545 l, Precision::Confusion(), 2);
91bb31f3 546
547 Standard_Integer NPnts = Points.Length();
548 if(NPnts > 2)
549 {
550 //cout << NPnts << " points " << endl;
551 TopoDS_Vertex FV = Vf;
552 TopoDS_Vertex LV;
553 TopoDS_Edge newE;
554 Standard_Integer np;
555 for(np = 2; np < NPnts; np++) {
556 gp_Pnt LP = Points(np);
557 LV = BRepLib_MakeVertex(LP);
558 newE = BRepLib_MakeEdge(FV, LV);
559 aL.Append(newE);
560 FV = LV;
561 }
562 LV = Vl;
563 newE = BRepLib_MakeEdge(FV, LV);
564 aL.Append(newE);
565 }
566 else
567 {
568 //cout << " 2 points " << endl;
569 TopoDS_Edge newE = BRepLib_MakeEdge(Vf, Vl);
570 aL.Append(newE);
571 }
572 //Update myMapSpine
573 if (myMapSpine.IsBound( anE ))
574 {
575 TopTools_ListIteratorOfListOfShape newit( aL );
576 for (; newit.More(); newit.Next())
577 {
578 TopoDS_Edge NewEdge = TopoDS::Edge( newit.Value() );
579 myMapSpine.Bind( NewEdge, myMapSpine(anE) );
580 TopoDS_Vertex NewV1, NewV2;
581 EdgeVertices( NewEdge, NewV1, NewV2 );
582 if (!myMapSpine.IsBound(NewV1)) myMapSpine.Bind( NewV1, myMapSpine(anE) );
583 if (!myMapSpine.IsBound(NewV2)) myMapSpine.Bind( NewV2, myMapSpine(anE) );
584 }
585 myMapSpine.UnBind( anE );
586 }
587 ///////////////////
588 aSubst.Substitute(anE, aL);
7fd59977 589 }
590
591 TopTools_DataMapOfShapeListOfShape wwmap;
592 TopoDS_Iterator itws( myWorkSpine );
593 for (; itws.More(); itws.Next())
91bb31f3 594 {
595 TopoDS_Shape aWire = itws.Value();
596 aSubst.Build( aWire );
597 if (aSubst.IsCopied(aWire))
598 {
599 TopoDS_Wire NewWire = TopoDS::Wire( aSubst.Copy(aWire).First() );
600 NewWire.Closed( aWire.Closed() );
601 TopTools_ListOfShape Lw;
602 Lw.Append( NewWire );
603 wwmap.Bind( aWire, Lw );
604 }
605 }
7fd59977 606 aSubst.Clear();
607 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itmap( wwmap );
608 for (; itmap.More(); itmap.Next())
91bb31f3 609 aSubst.Substitute( itmap.Key(), itmap.Value() );
873c119f 610
7fd59977 611 aSubst.Build(myWorkSpine);
873c119f 612
7fd59977 613 if(aSubst.IsCopied(myWorkSpine)) {
91bb31f3 614 myWorkSpine = TopoDS::Face(aSubst.Copy(myWorkSpine).First());
ab87e6fc 615
91bb31f3 616 BRepMAT2d_Explorer newExp;
617 newExp.Perform(myWorkSpine);
618 BRepMAT2d_BisectingLocus newBilo;
619 BRepMAT2d_LinkTopoBilo newLink;
c19dd45e 620 newBilo.Compute(newExp, 1, MAT_Left, myJoinType, myIsOpenResult);
ab87e6fc 621
91bb31f3 622 if(!newBilo.IsDone())
623 {
624 myShape.Nullify();
625 myIsDone = Standard_False;
626 return;
627 }
7fd59977 628
91bb31f3 629 newLink.Perform(newExp,newBilo);
630 PerformWithBiLo(myWorkSpine,Offset,newBilo,newLink,myJoinType,Alt);
631 myWorkSpine = oldWorkSpain;
7fd59977 632 }
633 else {
91bb31f3 634 PerformWithBiLo(myWorkSpine,Offset,myBilo,myLink,myJoinType,Alt);
7fd59977 635 }
7fd59977 636 }
91bb31f3 637 else
638 {
7fd59977 639 PerformWithBiLo(myWorkSpine,Offset,myBilo,myLink,myJoinType,Alt);
640 }
ab87e6fc 641 }
b350f6ee 642 catch (Standard_Failure)//Every exception was caught.
91bb31f3 643 {
7fd59977 644 myShape.Nullify();
645 myIsDone = Standard_False;
0797d9d3 646#ifdef OCCT_DEBUG
ab87e6fc 647 cout<<"An exception was caught in BRepFill_OffsetWire::Perform : ";
648 Standard_Failure::Caught()->Print(cout);
649 cout<<endl;
63c629aa 650#endif
91bb31f3 651
7fd59977 652 return;
653 }
ab87e6fc 654
91bb31f3 655 // Modified by skv - Fri Jul 8 11:21:38 2005 OCC9145 End
656 // Modified by Sergey KHROMOV - Thu Mar 14 10:48:15 2002 Begin
6a442250 657 if (!myIsOpenResult)
658 {
659 TopExp_Explorer anExp(myShape, TopAbs_WIRE);
873c119f 660
6a442250 661 for (; anExp.More(); anExp.Next()) {
662 const TopoDS_Shape &aWire = anExp.Current();
873c119f 663
6a442250 664 if (!aWire.Closed()) {
665 myShape.Nullify();
666 myIsDone = Standard_False;
667 Standard_ConstructionError::Raise("Offset wire is not closed.");
668 }
7fd59977 669 }
670 }
91bb31f3 671 // Modified by Sergey KHROMOV - Thu Mar 14 10:48:16 2002 End
7fd59977 672}
673
674//=======================================================================
675//function : Compute
676//purpose :
677//=======================================================================
678
679void Compute (const TopoDS_Face& Spine,
873c119f 680 TopoDS_Shape& aShape,
681 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
682 const Standard_Real Alt)
7fd59977 683{
684 BRep_Builder B;
685 B.MakeCompound(TopoDS::Compound(aShape));
686 Standard_Real ALT = Alt;
687 if ( Spine.Orientation() == TopAbs_REVERSED) ALT = -Alt;
688 gp_Trsf T;
689 T.SetTranslation(gp_Vec(0.,0.,ALT));
690 TopLoc_Location L(T);
691
692 for ( TopExp_Explorer exp(Spine,TopAbs_WIRE); exp.More(); exp.Next()) {
693 const TopoDS_Wire& CurW = TopoDS::Wire(exp.Current());
694 TopoDS_Shape aLocalShape = CurW.Moved(L);
695 TopoDS_Wire NewW = TopoDS::Wire(aLocalShape);
873c119f 696 // TopoDS_Wire NewW = TopoDS::Wire(CurW.Moved(L));
7fd59977 697 B.Add(aShape,NewW);
0d969553 698 // update Map.
7fd59977 699 TopoDS_Iterator it1( CurW);
700 TopoDS_Iterator it2( NewW);
701 for ( ; it1.More(); it1.Next(), it2.Next()) {
702 TopTools_ListOfShape List;
703 List.Append(it2.Value());
86b3805f 704 Map.Add(it1.Value(), List);
7fd59977 705 }
706 }
707}
708
709//=======================================================================
710//function : PerformWithBiLo
711//purpose :
712//=======================================================================
713
714void BRepFill_OffsetWire::PerformWithBiLo
873c119f 715 (const TopoDS_Face& Spine,
716 const Standard_Real Offset,
717 const BRepMAT2d_BisectingLocus& Locus,
718 BRepMAT2d_LinkTopoBilo& Link,
719 const GeomAbs_JoinType Join,
720 const Standard_Real Alt)
7fd59977 721{
7fd59977 722 myIsDone = Standard_False;
723 TopoDS_Shape aLocalShape = Spine.Oriented(TopAbs_FORWARD);
724 myWorkSpine = TopoDS::Face(aLocalShape);
873c119f 725 // myWorkSpine = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
7fd59977 726 myJoinType = Join;
727 myOffset = Offset ;
728 myShape.Nullify();
729
730
731 if (mySpine.IsNull()) {
732 TopoDS_Shape aLocalShape = Spine.Oriented(TopAbs_FORWARD);
733 mySpine = TopoDS::Face(aLocalShape);
873c119f 734 // mySpine = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
735 }
7fd59977 736 myMap.Clear();
737
7fd59977 738 if ( Abs(myOffset) < Precision::Confusion()) {
739 Compute(mySpine,myShape,myMap,Alt);
740 myIsDone = Standard_True;
741 return;
742 }
743
0d969553
Y
744 //********************************
745 // Calculate for a non null offset
746 //********************************
e11c1bc4 747 if (KPartCircle(myWorkSpine,Offset,myIsOpenResult,Alt,myShape,myMap,myIsDone))
91bb31f3 748 return;
7fd59977 749
750 BRep_Builder myBuilder;
751 myBuilder.MakeCompound(TopoDS::Compound(myShape));
873c119f 752
7fd59977 753 //---------------------------------------------------------------------
0d969553
Y
754 // MapNodeVertex : associate to each node of the map (key1) and to
755 // each element of the profile (key2) a vertex (item).
756 // MapBis : all edges or vertices (item) generated by
757 // a bisectrice on a face or an edge (key) of revolution tubes.
758 // MapVerPar : Map of parameters of vertices on parallel edges
759 // the list contained in MapVerPar (E) corresponds to
760 // parameters on E of vertices contained in MapBis(E);
7fd59977 761 //---------------------------------------------------------------------
762
763
764 BRepFill_DataMapOfNodeShape MapNodeVertex;
765 TopTools_DataMapOfShapeSequenceOfShape MapBis;
766 BRepFill_DataMapOfShapeSequenceOfReal MapVerPar;
767
768 TopTools_DataMapOfShapeShape EmptyMap;
769 TopTools_SequenceOfShape EmptySeq;
770 TopTools_ListOfShape EmptyList;
771 TColStd_SequenceOfReal EmptySeqOfReal;
772
773 Standard_Real ALT = Alt;
774 Handle(Geom_Plane) RefPlane =
775 Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(myWorkSpine));
776 if ( myWorkSpine.Orientation() == TopAbs_REVERSED) ALT = -Alt;
777 RefPlane = Handle(Geom_Plane)::DownCast
778 (RefPlane->Translated( ALT * gp_Vec(RefPlane->Axis().Direction() )));
779
780 //---------------------------------------------------------------
0d969553 781 // Construction of Circles and OffsetCurves
7fd59977 782 //---------------------------------------------------------------
6a442250 783
784 TopoDS_Vertex Ends [2];
785 if (myIsOpenResult)
786 {
787 TopoDS_Wire theWire;
788 TopoDS_Iterator iter(mySpine);
789 theWire = TopoDS::Wire(iter.Value());
790 TopExp::Vertices(theWire, Ends[0], Ends[1]);
791 }
873c119f 792
7fd59977 793 for (Standard_Integer ic = 1; ic <= Locus.NumberOfContours(); ic++) {
794 TopoDS_Shape PEE = Link.GeneratingShape(Locus.BasicElt(ic,Locus.NumberOfElts(ic)));
795 TopoDS_Shape& PE = PEE ;
796 for (Standard_Integer ie = 1; ie <= Locus.NumberOfElts(ic); ie++) {
797 const TopoDS_Shape& SE = Link.GeneratingShape(Locus.BasicElt(ic,ie));
798 if (SE.ShapeType() == TopAbs_VERTEX) {
0e0f7a7c 799 if (!SE.IsSame(Ends[0]) && !SE.IsSame(Ends[1]))
800 MakeCircle (TopoDS::Edge(PE),TopoDS::Vertex(SE),
801 myWorkSpine,myOffset,myMap,RefPlane);
7fd59977 802 }
803 else {
873c119f 804 MakeOffset (TopoDS::Edge(SE),myWorkSpine,myOffset,myMap,RefPlane,
c7806cb6 805 myIsOpenResult, myJoinType, Ends);
873c119f 806 PE = SE;
7fd59977 807 }
808 }
809 }
810
811
873c119f 812#ifdef OCCT_DEBUG
1896126e 813#ifdef DRAW
7fd59977 814 if (AffichEdge) {
0d969553 815 cout << " End Construction of geometric primitives "<<endl;
7fd59977 816 }
817#endif
873c119f 818#endif
7fd59977 819
820
821 //---------------------------------------------------
0d969553 822 // Construction of offset vertices.
7fd59977 823 //---------------------------------------------------
824 BRepFill_DataMapOfOrientedShapeListOfShape Detromp;
825 Handle(MAT_Arc) CurrentArc;
826 Handle(Geom2d_Curve) Bis, PCurve1, PCurve2 ;
827 Handle(Geom_Curve) CBis;
828 Standard_Boolean Reverse;
829 TopoDS_Edge CurrentEdge;
830 TopoDS_Shape S [2];
831 TopoDS_Edge E [2];
832 TopLoc_Location L;
86b3805f 833 Standard_Integer j, k;
7fd59977 834
835 for (Standard_Integer i = 1; i <= Locus.Graph()->NumberOfArcs(); i++) {
836
837 CurrentArc = Locus.Graph()->Arc(i);
838 Bisector_Bisec Bisec = Locus.GeomBis(CurrentArc,Reverse);
873c119f 839#ifdef OCCT_DEBUG
7fd59977 840#ifdef DRAW
873c119f 841
842 if ( AffichGeom) {
843 char name[256];
844 sprintf(name,"BISSEC_%d",NbBISSEC++);
845 DrawTrSurf::Set(name,Bisec.Value());
846 }
847#endif
7fd59977 848#endif
849
0d969553
Y
850 //-------------------------------------------------------------------
851 // Return elements of the spine corresponding to separate basicElts.
852 //-------------------------------------------------------------------
7fd59977 853 S [0] = Link.GeneratingShape(CurrentArc->FirstElement());
854 S [1] = Link.GeneratingShape(CurrentArc->SecondElement());
855
856 TopTools_SequenceOfShape Vertices;
857 TColgp_SequenceOfPnt Params;
873c119f 858
7fd59977 859 TopTools_DataMapOfShapeSequenceOfShape MapSeqVer;
860 BRepFill_DataMapOfShapeSequenceOfPnt MapSeqPar;
861
862 //-----------------------------------------------------------
0d969553
Y
863 // Return parallel edges on each face.
864 // If no offset generated => move to the next bissectrice.
7fd59977 865 //--------------------------------------------------------------
86b3805f
J
866 if (myMap.Contains(S[0]) && myMap.Contains(S[1])) {
867 E [0] = TopoDS::Edge(myMap.FindFromKey(S[0]).First());
868 E [1] = TopoDS::Edge(myMap.FindFromKey(S[1]).First());
7fd59977 869 }
870 else continue;
871
872 //-----------------------------------------------------------
0d969553
Y
873 // Construction of vertices corresponding to the node of the map.
874 // if they are on the offset.
7fd59977 875 //-----------------------------------------------------------
876 TopoDS_Vertex VS,VE;
877 Handle(MAT_Node) Node1, Node2;
878
879 if (Reverse) {
880 Node1 = CurrentArc->SecondNode();
881 Node2 = CurrentArc->FirstNode();
882 }
883 else {
884 Node1 = CurrentArc->FirstNode();
885 Node2 = CurrentArc->SecondNode();
886 }
873c119f 887
7fd59977 888 Standard_Boolean StartOnEdge = 0, EndOnEdge = 0;
873c119f 889
7fd59977 890 if (!Node1->Infinite()) {
891 gp_Pnt2d aLocalPnt2d = Locus.GeomElt(Node1);
892 StartOnEdge = VertexFromNode(Node1, myOffset, aLocalPnt2d ,MapNodeVertex,VS);
873c119f 893 // StartOnEdge = VertexFromNode(Node1, myOffset, Locus.GeomElt(Node1),
894 // MapNodeVertex,VS);
7fd59977 895 }
896 if (!Node2->Infinite()) {
897 gp_Pnt2d aLocalPnt2d = Locus.GeomElt(Node2) ;
898 EndOnEdge = VertexFromNode(Node2, myOffset, aLocalPnt2d ,MapNodeVertex,VE);
873c119f 899 // EndOnEdge = VertexFromNode(Node2, myOffset, Locus.GeomElt(Node2),
900 // MapNodeVertex,VE);
7fd59977 901 }
902
9eb68d38 903 if (myJoinType == GeomAbs_Intersection)
904 StartOnEdge = EndOnEdge = 0;
905
7fd59977 906 //---------------------------------------------
0d969553 907 // Construction of geometries.
7fd59977 908 //---------------------------------------------
909 BRepFill_TrimEdgeTool Trim (Bisec,
873c119f 910 Locus.GeomElt(CurrentArc->FirstElement()),
911 Locus.GeomElt(CurrentArc->SecondElement()),
912 myOffset);
7fd59977 913
914 //-----------------------------------------------------------
0d969553 915 // Construction of vertices on edges parallel to the spine.
7fd59977 916 //-----------------------------------------------------------
917
9eb68d38 918 Trim.IntersectWith(E [0], E [1], myJoinType, Params);
7fd59977 919
920 for (Standard_Integer s = 1; s <= Params.Length(); s++) {
921 TopoDS_Vertex VC;
922 myBuilder.MakeVertex (VC);
923 gp_Pnt2d P2 = Bisec.Value()->Value(Params.Value(s).X());
924 gp_Pnt PVC(P2.X(),P2.Y(),0.);
925
926 myBuilder.UpdateVertex(VC,PVC,Precision::Confusion());
927 Vertices.Append(VC);
928 }
929 if (StartOnEdge) {
930 Standard_Boolean Start = 1;
931 Trim.AddOrConfuse(Start, E[0], E[1], Params);
932 if (Params.Length() == Vertices.Length())
873c119f 933 Vertices.SetValue(1,VS);
7fd59977 934
935 else
873c119f 936 // the point was not found by IntersectWith
937 Vertices.Prepend(VS);
7fd59977 938 }
939 if (EndOnEdge) {
940 Standard_Boolean Start = 0;
941 Trim.AddOrConfuse(Start, E[0], E[1], Params);
942 if (Params.Length() == Vertices.Length())
873c119f 943 Vertices.SetValue(Params.Length(),VE);
7fd59977 944
945 else
873c119f 946 // the point was not found by IntersectWith
947 Vertices.Append(VE);
7fd59977 948 }
949
950 //------------------------------------------------------------
0d969553
Y
951 // Update Detromp.
952 // Detromp allows to remove vertices on the offset
953 // corresponding to tangency zones
954 // Detromp ranks the vertices that limit
955 // the parts of the bissectrices located between the spine and the
956 // offset.
7fd59977 957 //------------------------------------------------------------
958 if (!Detromp.IsBound(S[0])) Detromp.Bind(S[0],EmptyList);
959 if (!Detromp.IsBound(S[1])) Detromp.Bind(S[1],EmptyList);
960
961
c19dd45e 962 UpdateDetromp (Detromp, S[0], S[1], Vertices, Params,
873c119f 963 Bisec, StartOnEdge, EndOnEdge, Trim);
7fd59977 964 //----------------------------------------------
0d969553
Y
965 // Storage of vertices on parallel edges.
966 // fill MapBis and MapVerPar.
7fd59977 967 //----------------------------------------------
968 if (!Vertices.IsEmpty()) {
969 for (k = 0; k <= 1; k++) {
873c119f 970 if (!MapBis.IsBound(E[k])) {
971 MapBis .Bind(E[k],EmptySeq);
972 MapVerPar.Bind(E[k],EmptySeqOfReal);
973 }
974 for (Standard_Integer ii = 1; ii <= Vertices.Length(); ii++) {
975 MapBis (E[k]).Append(Vertices.Value(ii));
976 if (k == 0) MapVerPar (E[k]).Append(Params.Value(ii).Y());
977 else MapVerPar (E[k]).Append(Params.Value(ii).Z());
978 }
7fd59977 979 }
980 }
981 else {
982 //------------------------------------------------------------
0d969553
Y
983 // FOR COMPLETE CIRCLES. the parallel line can be contained
984 // in the zone without intersection with the border
985 // no intersection
986 // if myoffset is < distance of nodes the parallel can be valid.
7fd59977 987 //-------------------------------------------------------------
988 for (k = 0; k <= 1; k++) {
873c119f 989 if (!MapBis.IsBound(E[k])) {
990 if (Node1->Distance() > myOffset && Node2->Distance() > myOffset) {
991 MapBis .Bind(E[k],EmptySeq);
992 MapVerPar.Bind(E[k],EmptySeqOfReal);
993 }
994 }
7fd59977 995 }
996 }
997 }
873c119f 998
999#ifdef OCCT_DEBUG
1896126e 1000#ifdef DRAW
7fd59977 1001 if (AffichEdge) {
0d969553 1002 cout << " End Construction of vertices on offsets"<<endl;
7fd59977 1003 }
1004#endif
873c119f 1005#endif
7fd59977 1006
1007 //----------------------------------
0d969553 1008 // Construction of parallel edges.
7fd59977 1009 //----------------------------------
1010 TopTools_IndexedDataMapOfShapeShape MapVV;
1011
1012 TopoDS_Shape CurrentSpine;
1013
86b3805f 1014 //BRepFill_DataMapIteratorOfDataMapOfOrientedShapeListOfShape ite1;
7fd59977 1015
86b3805f
J
1016 for (j = 1; j <= myMap.Extent(); j++) {
1017 CurrentSpine = myMap.FindKey(j);
1018 CurrentEdge = TopoDS::Edge(myMap(j).First());
7fd59977 1019
86b3805f 1020 myMap(j).Clear();
7fd59977 1021 if (MapBis.IsBound(CurrentEdge)) {
1022 TopTools_SequenceOfShape S;
1023 if (!MapBis(CurrentEdge).IsEmpty()) {
6a442250 1024 Standard_Integer IndOfE = 0;
1025 if (myIsOpenResult)
1026 {
1027 if (j == 1)
1028 IndOfE = 1;
1029 else if (j == myMap.Extent())
1030 IndOfE = -1;
1031 }
873c119f 1032 TrimEdge (CurrentEdge,
1033 CurrentSpine,
1034 mySpine,
1035 Detromp (CurrentSpine),
1036 MapBis (CurrentEdge) ,
1037 MapVerPar(CurrentEdge) ,
1038 S, MapVV, IndOfE);
1039 for ( k = 1; k <= S.Length(); k++) {
1040 myMap(j).Append(S.Value(k));
1041 }
7fd59977 1042 }
1043 else {
873c119f 1044 //-----------------
1045 // Complete circles
1046 //-----------------
1047 myMap(j).Append(CurrentEdge);
7fd59977 1048 }
1049 }
1050 }
873c119f 1051
7fd59977 1052 Standard_Integer ind;
1053 for (ind = 1; ind <= MapVV.Extent(); ind++)
873c119f 1054 {
1055 TopoDS_Vertex OldV = TopoDS::Vertex(MapVV.FindKey(ind));
1056 TopoDS_Vertex NewV = TopoDS::Vertex(MapVV(ind));
1057 gp_Pnt P1 = BRep_Tool::Pnt(OldV);
1058 gp_Pnt P2 = BRep_Tool::Pnt(NewV);
1059 myBuilder.UpdateVertex(NewV, P1.Distance(P2));
1060 TopTools_ListOfShape LV;
1061 LV.Append( NewV.Oriented(TopAbs_FORWARD) );
1062 BRepTools_Substitution aSubst;
1063 aSubst.Substitute( OldV, LV );
1064 for (j = 1; j <= myMap.Extent(); j++)
7fd59977 1065 {
873c119f 1066 TopTools_ListIteratorOfListOfShape itl(myMap(j));
1067 for (; itl.More(); itl.Next())
1068 {
1069 aSubst.Build(itl.Value());
1070 if (aSubst.IsCopied(itl.Value()))
1071 {
1072 const TopTools_ListOfShape& listSh = aSubst.Copy(itl.Value());
1073 TopAbs_Orientation SaveOr = itl.Value().Orientation();
1074 itl.Value() = listSh.First();
1075 itl.Value().Orientation(SaveOr);
1076 }
1077 }
7fd59977 1078 }
873c119f 1079 }
7fd59977 1080
1081 //----------------------------------
0d969553 1082 // Construction of offset wires.
7fd59977 1083 //----------------------------------
1084 MakeWires ();
1085
0d969553 1086 // Update vertices ( Constructed in the plane Z = 0) !!!
7fd59977 1087 TopTools_MapOfShape MapVertex;
1088 for ( TopExp_Explorer exp(myShape,TopAbs_VERTEX); exp.More(); exp.Next()) {
1089 TopoDS_Vertex V = TopoDS::Vertex(exp.Current());
1090 if ( MapVertex.Add(V)) {
1091 gp_Pnt P = BRep_Tool::Pnt(V);
1092 P = RefPlane->Value(P.X(),P.Y());
1093 myBuilder.UpdateVertex(V,P, Precision::Confusion());
1094 }
1095 }
1096
0d969553 1097 // Construction of curves 3d.
7fd59977 1098 BRepLib::BuildCurves3d(myShape);
1099 MapVertex.Clear();
1100 TopExp_Explorer Explo( myShape, TopAbs_EDGE );
1101 for (; Explo.More(); Explo.Next())
873c119f 1102 {
1103 TopoDS_Edge E = TopoDS::Edge( Explo.Current() );
1104 TopoDS_Vertex V1, V2;
1105 TopExp::Vertices( E, V1, V2 );
1106 Handle(BRep_TVertex)& TV1 = *((Handle(BRep_TVertex)*) &(V1).TShape());
1107 Handle(BRep_TVertex)& TV2 = *((Handle(BRep_TVertex)*) &(V2).TShape());
1108
1109 TopLoc_Location loc;
1110 Standard_Real f, l;
1111 Handle( Geom_Curve ) theCurve = BRep_Tool::Curve( E, loc, f, l );
1112 theCurve = Handle( Geom_Curve )::DownCast( theCurve->Copy() );
1113 theCurve->Transform( loc.Transformation() );
1114 gp_Pnt f3d = theCurve->Value( f );
1115 gp_Pnt l3d = theCurve->Value( l );
1116
1117 Standard_Real dist1, dist2;
1118 dist1 = f3d.Distance( TV1->Pnt() );
1119 dist2 = l3d.Distance( TV2->Pnt() );
1120 if (! MapVertex.Contains( V1 ))
7fd59977 1121 {
7fd59977 1122
873c119f 1123 TV1->Pnt( f3d );
1124 MapVertex.Add( V1 );
7fd59977 1125 }
873c119f 1126 else
1127 TV1->UpdateTolerance( 1.5*dist1 );
1128 if (! MapVertex.Contains( V2 ))
1129 {
1130 TV2->Pnt( l3d );
1131 MapVertex.Add( V2 );
1132 }
1133 else
1134 TV2->UpdateTolerance( 1.5*dist2 );
1135 }
7fd59977 1136
1137 FixHoles();
1138
1139 myIsDone = Standard_True;
1140}
1141
1142
1143//=======================================================================
1144//function : Generated
1145//purpose :
1146//=======================================================================
1147
86b3805f 1148BRepFill_IndexedDataMapOfOrientedShapeListOfShape&
873c119f 1149 BRepFill_OffsetWire::Generated()
7fd59977 1150{
1151 return myMap;
1152}
1153
1154
1155//=======================================================================
1156//function : PrepareSpine
1157//purpose :
1158//=======================================================================
1159
1160void BRepFill_OffsetWire::PrepareSpine()
1161{
1162 BRep_Builder B;
1163 TopTools_ListOfShape Cuts;
1164 TopTools_ListIteratorOfListOfShape IteCuts;
1165 TopoDS_Vertex V1,V2;
1166
1167 myWorkSpine.Nullify();
1168 myMapSpine.Clear();
1169
1170 TopLoc_Location L;
1171 const Handle(Geom_Surface)& S = BRep_Tool::Surface (mySpine,L);
1172 Standard_Real TolF = BRep_Tool::Tolerance(mySpine);
1173 B.MakeFace(myWorkSpine,S,L,TolF);
1174
1175 for (TopoDS_Iterator IteF(mySpine) ; IteF.More(); IteF.Next()) {
1176
1177 TopoDS_Wire NW;
1178 B.MakeWire (NW);
1179
873c119f 1180 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:55 2000 Begin
7fd59977 1181 Standard_Integer ForcedCut = 0;
1182 Standard_Integer nbResEdges = -1;
1183 TopTools_IndexedMapOfShape EdgeMap;
1184
1185 TopExp::MapShapes(IteF.Value(), TopAbs_EDGE, EdgeMap);
1186 Standard_Integer nbEdges = EdgeMap.Extent();
1187
6a442250 1188 if (nbEdges == 1 && !myIsOpenResult) //in case of open wire there's no need to do it
7fd59977 1189 ForcedCut = 2;
873c119f 1190 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:48 2000 End
7fd59977 1191
1192 for (TopoDS_Iterator IteW(IteF.Value()); IteW.More(); IteW.Next()) {
1193
1194 const TopoDS_Edge& E = TopoDS::Edge(IteW.Value());
1195 EdgeVertices(E,V1,V2);
1196 myMapSpine.Bind(V1,V1);
1197 myMapSpine.Bind(V2,V2);
1198 Cuts.Clear();
1199
0d969553 1200 // Cut
7fd59977 1201 TopoDS_Shape aLocalShape = E.Oriented(TopAbs_FORWARD);
873c119f 1202 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:29 2000 Begin
7fd59977 1203 if (nbEdges == 2 && nbResEdges == 0)
873c119f 1204 ForcedCut = 1;
1205 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:33 2000 End
7fd59977 1206 nbResEdges = CutEdge (TopoDS::Edge(aLocalShape), mySpine, ForcedCut, Cuts);
1207
1208 if (Cuts.IsEmpty()) {
873c119f 1209 B.Add(NW,E);
1210 myMapSpine.Bind(E,E);
7fd59977 1211 }
1212 else {
873c119f 1213 for (IteCuts.Initialize(Cuts); IteCuts.More(); IteCuts.Next()) {
1214 TopoDS_Edge NE = TopoDS::Edge(IteCuts.Value());
1215 NE.Orientation(E.Orientation());
1216 B.Add(NW,NE);
1217 myMapSpine.Bind(NE,E);
1218 EdgeVertices(NE,V1,V2);
1219 if (!myMapSpine.IsBound(V1)) myMapSpine.Bind(V1,E);
1220 if (!myMapSpine.IsBound(V2)) myMapSpine.Bind(V2,E);
1221 }
7fd59977 1222 }
1223 }
873c119f 1224 // Modified by Sergey KHROMOV - Thu Mar 7 09:17:41 2002 Begin
7fd59977 1225 TopoDS_Vertex aV1;
1226 TopoDS_Vertex aV2;
1227
1228 TopExp::Vertices(NW, aV1, aV2);
1229
1230 NW.Closed(aV1.IsSame(aV2));
873c119f 1231
1232 // Modified by Sergey KHROMOV - Thu Mar 7 09:17:43 2002 End
7fd59977 1233 B.Add(myWorkSpine, NW);
1234 }
1235
873c119f 1236#ifdef OCCT_DEBUG
7fd59977 1237#ifdef DRAW
1238 if ( AffichEdge) {
1896126e 1239 DBRep::Set("WS",myWorkSpine);
873c119f 1240 DBRep::Set("MS",mySpine);
1241 BRepTools::Write(myWorkSpine, "WS");
1242 BRepTools::Write(mySpine, "MS");
7fd59977 1243 }
1244#endif
873c119f 1245#endif
7fd59977 1246
1247}
1248
1249//=======================================================================
c19dd45e 1250//function : UpdateDetromp
1251//purpose : For each interval on bissectrice defined by parameters
1252// test if the medium point is at a distance > offset
1253// in this case vertices corresponding to the extremities of the interval
1254// are ranked in the proofing.
1255// => If the same vertex appears in the proofing, the
1256// border of the zone of proximity is tangent to the offset .
1257//=======================================================================
1258
1259void BRepFill_OffsetWire::UpdateDetromp (BRepFill_DataMapOfOrientedShapeListOfShape& Detromp,
1260 const TopoDS_Shape& Shape1,
1261 const TopoDS_Shape& Shape2,
1262 const TopTools_SequenceOfShape& Vertices,
1263 const TColgp_SequenceOfPnt& Params,
1264 const Bisector_Bisec& Bisec,
1265 const Standard_Boolean SOnE,
1266 const Standard_Boolean EOnE,
1267 const BRepFill_TrimEdgeTool& Trim) const
1268{
c19dd45e 1269 Standard_Integer ii = 1;
1270 Standard_Real U1,U2;
1271 TopoDS_Vertex V1,V2;
1272
1273 Handle(Geom2d_Curve) Bis = Bisec.Value();
1274
1275 U1 = Bis->FirstParameter();
1276
1277 if (SOnE) {
1278 // the first point of the bissectrice is on the offset
1279 V1 = TopoDS::Vertex(Vertices.Value(ii));
1280 ii++;
1281 }
1282
1283 while (ii <= Vertices.Length()) {
1284 U2 = Params.Value(ii).X();
1285 V2 = TopoDS::Vertex(Vertices.Value(ii));
1286
a791eb69 1287 gp_Pnt2d P = Bis->Value((U2 + U1)*0.5);
1288 Standard_Boolean IsP_inside = Standard_True;
873c119f 1289 if ((myJoinType != GeomAbs_Intersection) || EOnE)
a791eb69 1290 IsP_inside = Trim.IsInside(P);
1291 if (!IsP_inside) {
c19dd45e 1292 if (!V1.IsNull()) {
1293 Detromp(Shape1).Append(V1);
1294 Detromp(Shape2).Append(V1);
1295 }
1296 Detromp(Shape1).Append(V2);
1297 Detromp(Shape2).Append(V2);
1298 }
1299 U1 = U2;
1300 V1 = V2;
1301 ii ++;
1302 }
1303
1304 // test medium point between the last parameter and the end of the bissectrice.
1305 U2 = Bis->LastParameter();
1306 if (!EOnE) {
1307 if (!Precision::IsInfinite(U2)) {
1308 gp_Pnt2d P = Bis->Value((U2 + U1)*0.5);
a791eb69 1309 Standard_Boolean IsP_inside = Standard_False;
1310 if (myJoinType == GeomAbs_Arc)
1311 IsP_inside = Trim.IsInside(P);
1312 if (!IsP_inside) {
873c119f 1313 if (!V1.IsNull()) {
1314 Detromp(Shape1).Append(V1);
1315 Detromp(Shape2).Append(V1);
1316 }
c19dd45e 1317 }
1318 }
1319 else {
1320 if (!V1.IsNull()) {
873c119f 1321 Detromp(Shape1).Append(V1);
1322 Detromp(Shape2).Append(V1);
c19dd45e 1323 }
1324 }
1325 }
873c119f 1326 //else if(myJoinType != GeomAbs_Arc)
1327 //{
1328 // if (!V1.IsNull()) {
1329 // Detromp(Shape1).Append(V1);
1330 // Detromp(Shape2).Append(V1);
1331 // }
1332 //}
c19dd45e 1333}
1334
1335//=======================================================================
7fd59977 1336//function : MakeWires
1337//purpose :
1338//=======================================================================
1339
1340void BRepFill_OffsetWire::MakeWires()
1341{
1342 //--------------------------------------------------------
0d969553 1343 // creation of a single list of created parallel edges.
7fd59977 1344 //--------------------------------------------------------
1345 TopTools_SequenceOfShape TheEdges;
1346 TopTools_ListOfShape TheWires;
1347 TopTools_ListIteratorOfListOfShape itl;
86b3805f
J
1348 //BRepFill_DataMapIteratorOfDataMapOfOrientedShapeListOfShape ite;
1349 TopTools_IndexedDataMapOfShapeListOfShape MVE;
1350 //TopTools_DataMapIteratorOfDataMapOfShapeListOfShape MVEit;
7fd59977 1351 TopoDS_Vertex V1,V2,VF,CV;
86b3805f 1352 Standard_Integer i;
7fd59977 1353
86b3805f
J
1354 for (i = 1; i <= myMap.Extent(); i++) {
1355 for (itl.Initialize(myMap(i)); itl.More(); itl.Next()) {
7fd59977 1356 const TopoDS_Edge& E = TopoDS::Edge(itl.Value());
1357 TopExp::Vertices (E,V1,V2);
1358 if (V1.IsSame(V2) && IsSmallClosedEdge(E, V1))
873c119f 1359 continue; //remove small closed edges
86b3805f 1360 if (!MVE.Contains(V1)) {
873c119f 1361 TopTools_ListOfShape empty;
1362 MVE.Add(V1,empty);
7fd59977 1363 }
86b3805f
J
1364 MVE.ChangeFromKey(V1).Append(E);
1365 if (!MVE.Contains(V2)) {
873c119f 1366 TopTools_ListOfShape empty;
1367 MVE.Add(V2,empty);
7fd59977 1368 }
86b3805f 1369 MVE.ChangeFromKey(V2).Append(E);
7fd59977 1370 }
1371 }
1372
1373 //--------------------------------------
0d969553 1374 // Creation of parallel wires.
7fd59977 1375 //--------------------------------------
1376 BRep_Builder B;
1377
873c119f 1378
1379 // Standard_Integer NbEdges;
1380 // Standard_Boolean NewWire = Standard_True;
1381 // Standard_Boolean AddEdge = Standard_False;
7fd59977 1382
1383 TopoDS_Wire NW;
1384 Standard_Boolean End;
1385 TopoDS_Edge CE;
1386
1387 while (!MVE.IsEmpty()) {
1388 B.MakeWire(NW);
1389
86b3805f
J
1390 //MVEit.Initialize(MVE);
1391 for (i = 1; i <= MVE.Extent(); i++)
1392 if(MVE(i).Extent() == 1)
1393 break;
7fd59977 1394
86b3805f
J
1395 //if(!MVEit.More()) MVEit.Initialize(MVE);
1396 if (i > MVE.Extent())
1397 i = 1;
7fd59977 1398
86b3805f
J
1399 CV = VF = TopoDS::Vertex(MVE.FindKey(i));
1400 CE = TopoDS::Edge(MVE(i).First());
7fd59977 1401 End = Standard_False;
86b3805f 1402 MVE.ChangeFromKey(CV).RemoveFirst();
7fd59977 1403
873c119f 1404 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:59 2002 Begin
7fd59977 1405 Standard_Boolean isClosed = Standard_False;
873c119f 1406
1407 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:00 2002 End
7fd59977 1408
1409 while(!End) {
1410 //-------------------------------
0d969553 1411 // Construction of a wire.
7fd59977 1412 //-------------------------------
1413 TopExp::Vertices(CE,V1,V2);
1414 if (!CV.IsSame(V1)) CV = V1; else CV = V2;
1415
1416 B.Add (NW,CE);
1417
86b3805f 1418 if (VF.IsSame(CV) || !MVE.Contains(CV)) {
873c119f 1419 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:14 2002 Begin
1420 isClosed = VF.IsSame(CV);
1421 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:15 2002 End
1422 End = Standard_True;
1423 //MVE.UnBind(VF);
86b3805f
J
1424 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1425 TopTools_ListOfShape LastList;
1426 LastList.Append(MVE(MVE.Extent()));
1427 MVE.RemoveLast();
1428 if (MVE.FindIndex(VF) != 0)
1429 MVE.Substitute(MVE.FindIndex(VF), LastShape, LastList);
7fd59977 1430 }
1431
1432 if (!End) {
873c119f 1433 if (MVE.FindFromKey(CV).Extent() > 2) {
1434 //cout <<"vertex on more that 2 edges in a face."<<endl;
1435 }
1436 for ( itl.Initialize(MVE.FindFromKey(CV)); itl.More(); itl.Next()) {
1437 if (itl.Value().IsSame(CE)) {
1438 MVE.ChangeFromKey(CV).Remove(itl);
1439 break;
1440 }
1441 }
1442 if (!MVE.FindFromKey(CV).IsEmpty()) {
1443 CE = TopoDS::Edge(MVE.FindFromKey(CV).First());
1444 MVE.ChangeFromKey(CV).RemoveFirst();
1445 }
1446 if (MVE.FindFromKey(CV).IsEmpty())
86b3805f
J
1447 {
1448 //MVE.UnBind(CV);
1449 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1450 TopTools_ListOfShape LastList;
1451 LastList.Append(MVE(MVE.Extent()));
1452 MVE.RemoveLast();
1453 if (MVE.FindIndex(CV) != 0)
1454 MVE.Substitute(MVE.FindIndex(CV), LastShape, LastList);
1455 }
7fd59977 1456 }
1457 }
873c119f 1458 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:31 2002 Begin
1459 // NW.Closed(Standard_True);
7fd59977 1460 NW.Closed(isClosed);
873c119f 1461 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:37 2002 End
7fd59977 1462 TheWires.Append(NW);
1463 }
1464
0d969553
Y
1465 // update myShape :
1466 // -- if only one wire : myShape is a Wire
1467 // -- if several wires : myShape is a Compound.
7fd59977 1468 if ( TheWires.Extent() == 1) {
1469 myShape = TheWires.First();
1470 }
1471 else {
1472 TopoDS_Compound R;
1473 B.MakeCompound(R);
1474 TopTools_ListIteratorOfListOfShape it(TheWires);
1475 for ( ; it.More(); it.Next()) {
1476 B.Add(R, it.Value());
1477 }
1478 myShape = R;
1479 }
1480
1481}
1482
1483//=======================================================================
1484//function : FixHoles
1485//purpose :
1486//=======================================================================
1487
1488void BRepFill_OffsetWire::FixHoles()
1489{
1490 TopTools_SequenceOfShape ClosedWires, UnclosedWires, IsolatedWires;
1491
1492 Standard_Real MaxTol = 0.;
1493 Standard_Integer i;
1494 BRep_Builder BB;
1495
1496 TopExp_Explorer Explo( mySpine, TopAbs_VERTEX );
1497 for (; Explo.More(); Explo.Next())
91bb31f3 1498 {
1499 const TopoDS_Vertex& aVertex = TopoDS::Vertex( Explo.Current() );
1500 Standard_Real Tol = BRep_Tool::Tolerance(aVertex);
1501 if (Tol > MaxTol)
1502 MaxTol = Tol;
1503 }
7fd59977 1504 MaxTol *= 100.;
1505
1506 Explo.Init( myShape, TopAbs_WIRE );
1507 for (; Explo.More(); Explo.Next())
91bb31f3 1508 {
1509 TopoDS_Shape aWire = Explo.Current();
1510 // Remove duplicated edges
1511 TopTools_DataMapOfShapeListOfShape EEmap;
1512 TopoDS_Iterator it( aWire );
1513 for (; it.More(); it.Next())
7fd59977 1514 {
91bb31f3 1515 const TopoDS_Shape& anEdge = it.Value();
1516 if (! EEmap.IsBound( anEdge ))
1517 {
1518 TopTools_ListOfShape LE;
1519 EEmap.Bind( anEdge, LE );
1520 }
7fd59977 1521 else
91bb31f3 1522 EEmap(anEdge).Append( anEdge );
7fd59977 1523 }
91bb31f3 1524 aWire.Free( Standard_True );
1525 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape mapit( EEmap );
1526 for (; mapit.More(); mapit.Next())
1527 {
1528 const TopTools_ListOfShape& LE = mapit.Value();
1529 TopTools_ListIteratorOfListOfShape itl( LE );
1530 for (; itl.More(); itl.Next())
1531 BB.Remove( aWire, itl.Value() );
1532 }
1533 // Sorting
1534 if (aWire.Closed())
1535 ClosedWires.Append( aWire );
1536 else
1537 UnclosedWires.Append( aWire );
1538 }
1539
7fd59977 1540 while (!UnclosedWires.IsEmpty())
91bb31f3 1541 {
1542 TopoDS_Wire& Base = TopoDS::Wire( UnclosedWires(1) );
1543 TopoDS_Vertex Vf, Vl;
1544 TopExp::Vertices( Base, Vf, Vl );
1545 if(Vf.IsNull() || Vl.IsNull())
873c119f 1546 {
91bb31f3 1547 Standard_Failure::Raise("BRepFill_OffsetWire::FixHoles(): Wrong wire.");
873c119f 1548#ifdef OCCT_DEBUG
1549 BRepTools::Write(Base, "Base");
1550#endif
1551 }
91bb31f3 1552 gp_Pnt Pf, Pl;
1553 Pf = BRep_Tool::Pnt(Vf);
1554 Pl = BRep_Tool::Pnt(Vl);
1555 Standard_Real DistF = RealLast(), DistL = RealLast();
1556 Standard_Integer IndexF = 1, IndexL = 1;
1557 Standard_Boolean IsFirstF = Standard_False, IsFirstL = Standard_False;
1558 for (Standard_Integer i = 2; i <= UnclosedWires.Length(); i++)
7fd59977 1559 {
91bb31f3 1560 TopoDS_Wire aWire = TopoDS::Wire( UnclosedWires(i) );
1561 TopoDS_Vertex V1, V2;
1562 TopExp::Vertices( aWire, V1, V2 );
1563
1564 if(V1.IsNull() || V2.IsNull())
873c119f 1565 {
ab87e6fc 1566 Standard_Failure::Raise("BRepFill_OffsetWire::FixHoles(): Wrong wire.");
873c119f 1567#ifdef OCCT_DEBUG
1568 BRepTools::Write(Base, "Base");
1569 char name[128];
1570 sprintf(name,"Wire_%d",i);
1571 BRepTools::Write(aWire, name);
1572#endif
1573 }
91bb31f3 1574
1575 gp_Pnt P1, P2;
1576 P1 = BRep_Tool::Pnt(V1);
1577 P2 = BRep_Tool::Pnt(V2);
1578 Standard_Real dist = Pf.Distance( P1 );
1579 if (dist < DistF)
1580 {
1581 DistF = dist;
1582 IndexF = i;
1583 IsFirstF = Standard_True;
1584 }
1585 dist = Pf.Distance( P2 );
1586 if (dist < DistF)
1587 {
1588 DistF = dist;
1589 IndexF = i;
1590 IsFirstF = Standard_False;
1591 }
1592 dist = Pl.Distance( P1 );
1593 if (dist < DistL)
1594 {
1595 DistL = dist;
1596 IndexL = i;
1597 IsFirstL = Standard_True;
1598 }
1599 dist = Pl.Distance( P2 );
1600 if (dist < DistL)
1601 {
1602 DistL = dist;
1603 IndexL = i;
1604 IsFirstL = Standard_False;
1605 }
1606 }
1607 TopoDS_Wire theWire;
1608 TopoDS_Edge theEdge;
1609 TopoDS_Vertex theVertex;
1610 Standard_Real CommonTol;
1611 Standard_Boolean TryToClose = Standard_True;
1612 if (DistF <= MaxTol && DistL <= MaxTol && IndexF == IndexL && IsFirstF == IsFirstL)
1613 {
1614 if (DistF < DistL)
1615 {
1616 DistL = RealLast();
1617 IndexL++;
1618 }
1619 else
1620 {
1621 DistF = RealLast();
1622 IndexF++;
1623 }
1624 TryToClose = Standard_False;
1625 }
1626 if (DistF <= MaxTol)
1627 {
1628 theWire = TopoDS::Wire( UnclosedWires(IndexF) );
1629 TopoDS_Vertex V1, V2;
1630 TopExp::Vertices( theWire, V1, V2 );
1631 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1632 TopExp::MapShapesAndAncestors( theWire, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1633 theEdge = (IsFirstF)? TopoDS::Edge(VEmap.FindFromKey( V1 ).First()) :
1634 TopoDS::Edge(VEmap.FindFromKey( V2 ).First());
1635 TopoDS_Iterator it( theWire );
1636 for (; it.More(); it.Next())
1637 {
1638 TopoDS_Edge anEdge = TopoDS::Edge( it.Value() );
1639 if (IsFirstF) anEdge.Reverse();
1640 if (!anEdge.IsSame( theEdge ))
1641 BB.Add( Base, anEdge );
1642 }
1643 theVertex = (IsFirstF)? V1 : V2;
1644 CommonTol = Max( BRep_Tool::Tolerance(Vf), BRep_Tool::Tolerance(theVertex) );
1645 if (DistF <= CommonTol)
1646 {
1647 theEdge.Free( Standard_True );
1648 Vf.Orientation( theVertex.Orientation() );
1649 BB.Remove( theEdge, theVertex );
1650 BB.Add( theEdge, Vf );
1651 BB.UpdateVertex( Vf, CommonTol );
1652 if (IsFirstF) theEdge.Reverse();
1653 BB.Add( Base, theEdge );
1654 }
1655 else
1656 {
1657 if (IsFirstF) theEdge.Reverse();
1658 BB.Add( Base, theEdge );
1659 // Creating new edge from theVertex to Vf
1660 TopoDS_Edge NewEdge = BRepLib_MakeEdge( theVertex, Vf );
1661 BB.Add( Base, NewEdge );
1662 }
1663 }
1664 if (DistL <= MaxTol && IndexL != IndexF)
1665 {
1666 theWire = TopoDS::Wire( UnclosedWires(IndexL) );
1667 TopoDS_Vertex V1, V2;
1668 TopExp::Vertices( theWire, V1, V2 );
1669 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1670 TopExp::MapShapesAndAncestors( theWire, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1671 theEdge = (IsFirstL)? TopoDS::Edge(VEmap.FindFromKey( V1 ).First()) :
1672 TopoDS::Edge(VEmap.FindFromKey( V2 ).First());
1673 TopoDS_Iterator it( theWire );
1674 for (; it.More(); it.Next())
1675 {
1676 TopoDS_Edge anEdge = TopoDS::Edge( it.Value() );
1677 if (!IsFirstL) anEdge.Reverse();
1678 if (!anEdge.IsSame( theEdge ))
1679 BB.Add( Base, anEdge );
1680 }
1681 theVertex = (IsFirstL)? V1 : V2;
1682 CommonTol = Max( BRep_Tool::Tolerance(Vl), BRep_Tool::Tolerance(theVertex) );
1683 if (DistL <= CommonTol)
1684 {
1685 theEdge.Free( Standard_True );
1686 Vl.Orientation( theVertex.Orientation() );
1687 BB.Remove( theEdge, theVertex );
1688 BB.Add( theEdge, Vl );
1689 BB.UpdateVertex( Vl, CommonTol );
1690 if (!IsFirstL) theEdge.Reverse();
1691 BB.Add( Base, theEdge );
1692 }
1693 else
1694 {
1695 if (!IsFirstL) theEdge.Reverse();
1696 BB.Add( Base, theEdge );
1697 // Creating new edge from Vl to theVertex
1698 TopoDS_Edge NewEdge = BRepLib_MakeEdge( Vl, theVertex );
1699 BB.Add( Base, NewEdge );
1700 }
1701 }
1702 // Check if it is possible to close resulting wire
1703 if (TryToClose)
1704 {
1705 TopExp::Vertices( Base, Vf, Vl );
1706 CommonTol = Max( BRep_Tool::Tolerance(Vf), BRep_Tool::Tolerance(Vl) );
1707 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1708 TopExp::MapShapesAndAncestors( Base, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1709 TopoDS_Edge Efirst, Elast;
1710 Efirst = TopoDS::Edge(VEmap.FindFromKey( Vf ).First());
1711 Elast = TopoDS::Edge(VEmap.FindFromKey( Vl ).First());
7fd59977 1712 Pf = BRep_Tool::Pnt(Vf);
1713 Pl = BRep_Tool::Pnt(Vl);
91bb31f3 1714 Standard_Real Dist = Pf.Distance(Pl);
1715 if (Dist <= CommonTol)
1716 {
1717 Elast.Free( Standard_True );
1718 Vf.Orientation( Vl.Orientation() );
1719 BB.Remove( Elast, Vl );
1720 BB.Add( Elast, Vf );
1721 BB.UpdateVertex( Vf, CommonTol );
1722 Base.Closed( Standard_True );
1723 }
1724 else if (Dist <= MaxTol)
1725 {
1726 // Creating new edge from Vl to Vf
1727 TopoDS_Edge NewEdge = BRepLib_MakeEdge( Vf, Vl );
1728 BB.Add( Base, NewEdge );
1729 Base.Closed( Standard_True );
1730 }
7fd59977 1731 }
91bb31f3 1732 // Updating sequences ClosedWires and UnclosedWires
1733 if (DistF <= MaxTol)
1734 UnclosedWires.Remove( IndexF );
1735 if (DistL <= MaxTol && IndexL != IndexF)
7fd59977 1736 {
91bb31f3 1737 if (DistF <= MaxTol && IndexL > IndexF)
1738 IndexL--;
1739 UnclosedWires.Remove( IndexL );
7fd59977 1740 }
91bb31f3 1741 if (Base.Closed())
7fd59977 1742 {
91bb31f3 1743 ClosedWires.Append( Base );
1744 UnclosedWires.Remove( 1 );
7fd59977 1745 }
91bb31f3 1746 else if (DistF > MaxTol && DistL > MaxTol)
1747 {
1748 IsolatedWires.Append( Base );
1749 UnclosedWires.Remove( 1 );
1750 }
1751 }
1752
1753 // Updating myShape
1754 if (ClosedWires.Length() + IsolatedWires.Length() == 1)
1755 {
1756 if (!ClosedWires.IsEmpty())
1757 myShape = ClosedWires.First();
1758 else
1759 myShape = IsolatedWires.First();
1760 }
1761 else
1762 {
1763 TopoDS_Compound R;
1764 BB.MakeCompound( R );
1765 for (i = 1; i <= ClosedWires.Length(); i++)
1766 BB.Add( R, ClosedWires(i) );
1767 for (i = 1; i <= IsolatedWires.Length(); i++)
1768 BB.Add( R, IsolatedWires(i) );
1769 myShape = R;
1770 }
7fd59977 1771}
1772
1773//=======================================================================
1774//function : CutEdge
0d969553
Y
1775//purpose : Cut edge at the extrema of curvatures and points of inflexion.
1776// So, closed circles are cut in two.
1777// If <Cuts> is empty, the edge is not modified.
1778// The first and the last vertex of the initial edge
1779// belong to the first and the last parts respectively.
7fd59977 1780//=======================================================================
1781Standard_Integer CutEdge (const TopoDS_Edge& E,
873c119f 1782 const TopoDS_Face& F,
1783 Standard_Integer ForceCut,
1784 TopTools_ListOfShape& Cuts)
7fd59977 1785{
1786 Cuts.Clear();
1787 MAT2d_CutCurve Cuter;
1788 TColGeom2d_SequenceOfCurve theCurves;
1789 Standard_Real f,l;
1790 Handle(Geom2d_Curve) C2d;
1791 Handle(Geom2d_TrimmedCurve) CT2d;
873c119f 1792 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:25 2002 Begin
7fd59977 1793 Standard_Real aTol = BRep_Tool::Tolerance(E);
1794 Handle(Geom_Curve) aC;
873c119f 1795 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:25 2002 End
7fd59977 1796
1797 TopoDS_Vertex V1,V2,VF,VL;
1798 TopExp::Vertices (E,V1,V2);
1799 BRep_Builder B;
1800
1801 C2d = BRep_Tool::CurveOnSurface (E,F,f,l);
873c119f 1802 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:54 2002 Begin
7fd59977 1803 aC = BRep_Tool::Curve(E,f,l);
873c119f 1804 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:54 2002 End
7fd59977 1805 CT2d = new Geom2d_TrimmedCurve(C2d,f,l);
1806 //if (E.Orientation() == TopAbs_REVERSED) CT2d->Reverse();
1807
1808 if (CT2d->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Circle)) &&
873c119f 1809 ( Abs(f-l) >= M_PI) ) {
1810 return 0;
7fd59977 1811 }
1812
1813 //-------------------------
0d969553 1814 // Cut curve.
7fd59977 1815 //-------------------------
1816 Cuter.Perform(CT2d);
1817
873c119f 1818 // Modified by Sergey KHROMOV - Thu Nov 16 17:28:29 2000 Begin
7fd59977 1819 if (ForceCut == 0) {
1820 if (Cuter.UnModified()) {
873c119f 1821 //-----------------------------
1822 // edge not modified => return.
1823 //-----------------------------
7fd59977 1824 return 0;
1825 } else {
1826 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
873c119f 1827 theCurves.Append(Cuter.Value(k));
7fd59977 1828 }
1829 } else if (ForceCut == 1) {
1830 if (Cuter.UnModified()) {
1831 CutCurve (CT2d, 2, theCurves);
1832 } else {
1833 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
873c119f 1834
1835 theCurves.Append(Cuter.Value(k));
7fd59977 1836 }
1837 } else if (ForceCut == 2) {
1838 if (Cuter.UnModified()) {
1839 CutCurve (CT2d, 3, theCurves);
1840 } else {
1841 if (Cuter.NbCurves() == 2) {
873c119f 1842
1843 Handle(Geom2d_TrimmedCurve)CC = Cuter.Value(1);
1844
1845 if (CC->LastParameter() > (l+f)/2.) {
1846 CutCurve (CC, 2, theCurves);
1847 theCurves.Append(Cuter.Value(2));
1848 } else {
1849 theCurves.Append(CC);
1850 CutCurve (Cuter.Value(2), 2, theCurves);
1851 }
7fd59977 1852 } else {
873c119f 1853 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
1854 theCurves.Append(Cuter.Value(k));
7fd59977 1855 }
1856 }
1857 }
873c119f 1858
1859 // Modified by Sergey KHROMOV - Thu Nov 16 17:28:37 2000 End
7fd59977 1860
1861 //--------------------------------------
0d969553 1862 // Creation of cut edges.
7fd59977 1863 //--------------------------------------
1864 VF = V1;
1865
1866 for (Standard_Integer k = 1; k <= theCurves.Length(); k++) {
1867
1868 Handle(Geom2d_TrimmedCurve)CC = Handle(Geom2d_TrimmedCurve)::DownCast(theCurves.Value(k));
1869
1870 if (k == theCurves.Length()) {VL = V2;}
1871 else {
873c119f 1872 // Modified by Sergey KHROMOV - Wed Mar 6 17:38:02 2002 Begin
7fd59977 1873 gp_Pnt P = aC->Value(CC->LastParameter());
1874
1875 VL = BRepLib_MakeVertex(P);
1876 B.UpdateVertex(VL, aTol);
873c119f 1877 // Modified by Sergey KHROMOV - Wed Mar 6 17:38:05 2002 End
7fd59977 1878 }
1879 TopoDS_Shape aLocalShape = E.EmptyCopied();
1880 TopoDS_Edge NE = TopoDS::Edge(aLocalShape);
873c119f 1881 // TopoDS_Edge NE = TopoDS::Edge(E.EmptyCopied());
7fd59977 1882 NE.Orientation(TopAbs_FORWARD);
1883 B.Add (NE,VF.Oriented(TopAbs_FORWARD));
1884 B.Add (NE,VL.Oriented(TopAbs_REVERSED));
1885 B.Range(NE,CC->FirstParameter(),CC->LastParameter());
1886 Cuts.Append(NE.Oriented(E.Orientation()));
1887 VF = VL;
1888 }
1889
1890 return theCurves.Length();
1891}
1892
1893// Modified by Sergey KHROMOV - Thu Nov 16 17:27:56 2000 Begin
1894//=======================================================================
1895//function : CutCurve
1896//purpose :
1897//=======================================================================
1898
1899void CutCurve (const Handle(Geom2d_TrimmedCurve)& C,
873c119f 1900 const Standard_Integer nbParts,
1901 TColGeom2d_SequenceOfCurve& theCurves)
7fd59977 1902{
1903 Handle(Geom2d_TrimmedCurve) TrimC;
1904 Standard_Real UF,UL,UC;
1905 Standard_Real Step;
1906 gp_Pnt2d PF,PL,PC;
1907 Standard_Real PTol = Precision::PConfusion()*10;
1908 Standard_Real Tol = Precision::Confusion()*10;
1909 Standard_Boolean YaCut = Standard_False;
1910
1911 UF = C->FirstParameter();
1912 UL = C->LastParameter ();
1913 PF = C->Value(UF);
1914 PL = C->Value(UL);
1915
1916 Step = (UL - UF)/nbParts;
1917
1918 for (Standard_Integer i = 1; i < nbParts; i++) {
1919
1920 UC = UF + i*Step;
1921 PC = C->Value(UC);
1922
1923 if (UC - UF > PTol && PC.Distance(PF) > Tol) {
1924 if ( UL - UC < PTol || PL.Distance(PC) < Tol)
873c119f 1925 continue;
7fd59977 1926
1927 TrimC = new Geom2d_TrimmedCurve(C,UF,UC);
1928 theCurves.Append(TrimC);
1929 UF = UC;
1930 PF = PC;
1931 YaCut = Standard_True;
1932 }
1933 }
1934 if (YaCut) {
1935 TrimC = new Geom2d_TrimmedCurve(C,UF,UL);
1936 theCurves.Append(TrimC);
1937 } else
1938 theCurves.Append(C);
1939}
1940// Modified by Sergey KHROMOV - Thu Nov 16 17:28:13 2000 End
1941
1942//=======================================================================
1943//function : MakeCircle
1944//purpose :
1945//=======================================================================
1946
1947void MakeCircle (const TopoDS_Edge& E,
873c119f 1948 const TopoDS_Vertex& V,
1949 const TopoDS_Face& F,
1950 const Standard_Real Offset,
1951 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
1952 const Handle(Geom_Plane)& RefPlane)
7fd59977 1953{
0d969553 1954 // evaluate the Axis of the Circle.
7fd59977 1955 Standard_Real f,l;
1956 Handle(Geom2d_Curve) GC = BRep_Tool::CurveOnSurface(E,F,f,l);
1957 gp_Vec2d DX;
1958 gp_Pnt2d P;
1959
1960 if (E.Orientation() == TopAbs_FORWARD) {
1961 GC->D1(l,P,DX);
1962 DX.Reverse();
1963 }
1964 else GC->D1(f,P,DX);
1965
1966 gp_Ax2d Axis(P,gp_Dir2d(DX));
1967 Handle(Geom2d_Circle) Circ
1968 = new Geom2d_Circle(Axis, Abs(Offset), Offset < 0.);
1969
1970 // Bind the edges in my Map.
1971 TopoDS_Edge OE = BRepLib_MakeEdge(Circ, RefPlane);
1972 TopTools_ListOfShape LL;
1973
1974 LL.Append(OE);
86b3805f 1975 Map.Add(V,LL);
7fd59977 1976
873c119f 1977#ifdef OCCT_DEBUG
7fd59977 1978#ifdef DRAW
1979 if ( AffichGeom && !OE.IsNull()) {
1896126e 1980 char name[256];
7fd59977 1981 sprintf(name,"OFFSET_%d",++NbOFFSET);
1982 DBRep::Set(name,OE);
1983 }
1984#endif
873c119f 1985#endif
7fd59977 1986}
1987
1988//=======================================================================
1989//function : MakeOffset
1990//purpose :
1991//=======================================================================
1992
1993void MakeOffset (const TopoDS_Edge& E,
873c119f 1994 const TopoDS_Face& F,
1995 const Standard_Real Offset,
1996 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
1997 const Handle(Geom_Plane)& RefPlane,
1998 const Standard_Boolean IsOpenResult,
c7806cb6 1999 const GeomAbs_JoinType theJoinType,
873c119f 2000 const TopoDS_Vertex * Ends)
7fd59977 2001{
2002 Standard_Real f,l;
2003 Standard_Real anOffset = Offset;
2004
2005 if (E.Orientation() == TopAbs_REVERSED) anOffset *= -1;
2006
2007 Handle(Geom2d_Curve) G2d = BRep_Tool::CurveOnSurface(E,F,f,l);
2008 Handle(Geom2d_Curve) G2dOC;
2009
6a442250 2010 Standard_Boolean ToExtendFirstPar = Standard_True;
2011 Standard_Boolean ToExtendLastPar = Standard_True;
2012 if (IsOpenResult)
2013 {
2014 TopoDS_Vertex V1, V2;
2015 TopExp::Vertices(E, V1, V2);
2016 if (V1.IsSame(Ends[0]) ||
873c119f 2017 V1.IsSame(Ends[1]))
6a442250 2018 ToExtendFirstPar = Standard_False;
2019 if (V2.IsSame(Ends[0]) ||
873c119f 2020 V2.IsSame(Ends[1]))
6a442250 2021 ToExtendLastPar = Standard_False;
2022 }
2023
7fd59977 2024 Geom2dAdaptor_Curve AC(G2d,f,l);
2025 if ( AC.GetType() == GeomAbs_Circle) {
0d969553
Y
2026 // if the offset is greater otr equal to the radius and the side of the
2027 // concavity of the circle => edge null.
7fd59977 2028 gp_Circ2d C1(AC.Circle());
7fd59977 2029 gp_Ax22d axes( C1.Axis());
2030 gp_Dir2d Xd = axes.XDirection();
2031 gp_Dir2d Yd = axes.YDirection();
2032 Standard_Real Crossed = Xd.X()*Yd.Y()-Xd.Y()*Yd.X();
2033 Standard_Real Signe = ( Crossed > 0.) ? 1. : -1.;
2034
9ffd84ad 2035 if (anOffset*Signe < AC.Circle().Radius() - Precision::Confusion()) {
0d969553 2036
7fd59977 2037 Handle(Geom2dAdaptor_HCurve) AHC =
873c119f 2038 new Geom2dAdaptor_HCurve(G2d);
7fd59977 2039 Adaptor3d_OffsetCurve Off(AHC,-anOffset);
2040 Handle(Geom2d_Circle) CC = new Geom2d_Circle(Off.Circle());
2041
c6541a0c 2042 Standard_Real Delta = 2*M_PI - l + f;
c7806cb6 2043 if (theJoinType == GeomAbs_Arc)
2044 {
873c119f 2045 if (ToExtendFirstPar)
2046 f -= 0.2*Delta;
2047 if (ToExtendLastPar)
2048 l += 0.2*Delta;
c7806cb6 2049 }
2050 else //GeomAbs_Intersection
2051 {
2052 if (ToExtendFirstPar && ToExtendLastPar)
2053 {
2054 Standard_Real old_l = l;
2055 f = old_l + Delta/2.;
2056 l = f + 2*M_PI;
2057 }
2058 else if (ToExtendFirstPar)
2059 {
2060 f = l;
2061 l = f + 2*M_PI;
2062 }
2063 else if (ToExtendLastPar)
2064 {
2065 l = f + 2*M_PI;
2066 }
2067 }
7fd59977 2068 G2dOC = new Geom2d_TrimmedCurve(CC,f,l);
2069 }
2070 }
2071 else if (AC.GetType() == GeomAbs_Line) {
2072 Handle(Geom2dAdaptor_HCurve) AHC =
2073 new Geom2dAdaptor_HCurve(G2d);
2074 Adaptor3d_OffsetCurve Off(AHC,anOffset);
2075 Handle(Geom2d_Line) CC = new Geom2d_Line(Off.Line());
2076 Standard_Real Delta = (l - f);
6a442250 2077 if (ToExtendFirstPar)
c7806cb6 2078 {
2079 if (theJoinType == GeomAbs_Arc)
873c119f 2080 f -= Delta;
c7806cb6 2081 else //GeomAbs_Intersection
2082 f = -Precision::Infinite();
2083 }
6a442250 2084 if (ToExtendLastPar)
c7806cb6 2085 {
2086 if (theJoinType == GeomAbs_Arc)
873c119f 2087 l += Delta;
c7806cb6 2088 else //GeomAbs_Intersection
2089 l = Precision::Infinite();
2090 }
7fd59977 2091 G2dOC = new Geom2d_TrimmedCurve(CC,f,l);
2092 }
2093 else {
2094
2095 anOffset = -anOffset;
2096 Handle(Geom2d_TrimmedCurve) G2dT = new Geom2d_TrimmedCurve(G2d,f,l);
2097 G2dOC = new Geom2d_OffsetCurve( G2dT, anOffset);
2098
2099 }
2100
2101 // Bind the edges in my Map.
2102 if (!G2dOC.IsNull()) {
2103 TopoDS_Edge OE = BRepLib_MakeEdge(G2dOC, RefPlane);
2104 OE.Orientation(E.Orientation());
2105 TopTools_ListOfShape LL;
2106 LL.Append(OE);
86b3805f 2107 Map.Add(E,LL);
7fd59977 2108
873c119f 2109#ifdef OCCT_DEBUG
7fd59977 2110#ifdef DRAW
2111 if (AffichGeom && !OE.IsNull()) {
1896126e 2112 char name[256];
7fd59977 2113 sprintf(name,"OFFSET_%d",++NbOFFSET);
2114 DBRep::Set(name,OE);
873c119f 2115 //Standard_Real ii = 0;
7fd59977 2116 }
2117#endif
873c119f 2118#endif
2119
7fd59977 2120 }
2121}
2122
7fd59977 2123
2124//=======================================================================
2125//function : VertexFromNode
2126//purpose :
2127//=======================================================================
2128
2129Standard_Boolean VertexFromNode (const Handle(MAT_Node)& aNode,
873c119f 2130 const Standard_Real Offset,
2131 gp_Pnt2d& PN,
2132 BRepFill_DataMapOfNodeShape& MapNodeVertex,
2133 TopoDS_Vertex& VN)
7fd59977 2134{
2135 Standard_Boolean Status;
2136 Standard_Real Tol = Precision::Confusion();
2137 BRep_Builder B;
2138
2139 if (!aNode->Infinite() && Abs(aNode->Distance()-Offset) < Tol) {
2140 //------------------------------------------------
0d969553 2141 // the Node gives a vertex on the offset
7fd59977 2142 //------------------------------------------------
2143 if (MapNodeVertex.IsBound(aNode)) {
2144 VN = TopoDS::Vertex(MapNodeVertex(aNode));
2145 }
2146 else {
2147 gp_Pnt P(PN.X(),PN.Y(),0.);
2148 B.MakeVertex (VN);
2149 B.UpdateVertex(VN,P, Precision::Confusion());
2150 MapNodeVertex.Bind(aNode,VN);
2151 }
2152 Status = Standard_True;
2153 }
2154 else Status = Standard_False;
2155
2156 return Status;
2157}
2158
2159
2160//=======================================================================
2161//function : StoreInMap
2162//purpose :
2163//=======================================================================
2164
2165void StoreInMap (const TopoDS_Shape& V1,
873c119f 2166 const TopoDS_Shape& V2,
2167 TopTools_IndexedDataMapOfShapeShape& MapVV)
7fd59977 2168{
2169 TopoDS_Shape OldV = V1, NewV = V2;
2170 Standard_Integer i;
2171
2172 if (MapVV.Contains(V2))
2173 NewV = MapVV.FindFromKey(V2);
2174
2175 if (MapVV.Contains(V1))
2176 MapVV.ChangeFromKey(V1) = NewV;
2177
2178 for (i = 1; i <= MapVV.Extent(); i++)
2179 if (MapVV(i).IsSame(V1))
2180 MapVV(i) = NewV;
2181
2182 MapVV.Add(V1, NewV);
2183}
2184
2185//=======================================================================
2186//function : TrimEdge
2187//purpose :
2188//=======================================================================
2189
2190void TrimEdge (const TopoDS_Edge& E,
e11c1bc4 2191 const TopoDS_Shape& ProE,
2192 const TopoDS_Face& AllSpine,
7fd59977 2193 const TopTools_ListOfShape& Detromp,
6a442250 2194 TopTools_SequenceOfShape& TheVer,
2195 TColStd_SequenceOfReal& ThePar,
2196 TopTools_SequenceOfShape& S,
2197 TopTools_IndexedDataMapOfShapeShape& MapVV,
2198 const Standard_Integer IndOfE)
7fd59977 2199{
2200 Standard_Boolean Change = Standard_True;
2201 BRep_Builder TheBuilder;
2202 S.Clear();
2203
2204 //-----------------------------------------------------------
0d969553 2205 // Parse two sequences depending on the parameter on the edge.
7fd59977 2206 //-----------------------------------------------------------
2207 while (Change) {
2208 Change = Standard_False;
2209 for (Standard_Integer i = 1; i < ThePar.Length(); i++) {
2210 if (ThePar.Value(i) > ThePar.Value(i+1)) {
873c119f 2211 ThePar.Exchange(i,i+1);
2212 TheVer.Exchange(i,i+1);
2213 Change = Standard_True;
7fd59977 2214 }
2215 }
2216 }
2217
2218 //----------------------------------------------------------
0d969553 2219 // If a vertex is not in the proofing, it is eliminated.
7fd59977 2220 //----------------------------------------------------------
2221 if (!BRep_Tool::Degenerated(E)) {
2222 for (Standard_Integer k = 1; k <= TheVer.Length(); k ++) {
2223 if ( DoubleOrNotInside (Detromp,
873c119f 2224 TopoDS::Vertex(TheVer.Value(k)))) {
2225 TheVer.Remove(k);
2226 ThePar.Remove(k);
2227 k--;
7fd59977 2228 }
2229 }
2230 }
2231
2232 //----------------------------------------------------------
0d969553
Y
2233 // If a vertex_double appears twice in the proofing
2234 // the vertex is removed.
2235 // otherwise preserve only one of its representations.
7fd59977 2236 //----------------------------------------------------------
2237 if (!BRep_Tool::Degenerated(E)) {
94f71cad 2238 Standard_Real aParTol = 2.0 * Precision::PConfusion();
7fd59977 2239 for (Standard_Integer k = 1; k < TheVer.Length(); k ++) {
2240 if (TheVer.Value(k).IsSame(TheVer.Value(k+1)) ||
94f71cad 2241 Abs(ThePar.Value(k)-ThePar.Value(k+1)) <= aParTol) {
873c119f 2242
2243 if(k+1 == TheVer.Length()) {
2244 StoreInMap(TheVer(k), TheVer(k+1), MapVV);
2245 TheVer.Remove(k);
2246 ThePar.Remove(k);
2247 }
2248 else {
2249 StoreInMap(TheVer(k+1), TheVer(k), MapVV);
2250 TheVer.Remove(k+1);
2251 ThePar.Remove(k+1);
2252 }
2253 /*
2254 if ( DoubleOrNotInside (Detromp,
2255 TopoDS::Vertex(TheVer.Value(k)))) {
2256 TheVer.Remove(k);
2257 ThePar.Remove(k);
2258 k--;
2259 }
2260 */
2261 k--;
7fd59977 2262 }
2263 }
2264 }
2265 //-----------------------------------------------------------
0d969553
Y
2266 // Creation of edges.
2267 // the number of vertices should be even. The created edges
2268 // go from a vertex with uneven index i to vertex i+1;
7fd59977 2269 //-----------------------------------------------------------
6a442250 2270 if (IndOfE == 1 || IndOfE == -1) //open result and extreme edges of result
2271 {
7fd59977 2272 TopoDS_Shape aLocalShape = E.EmptyCopied();
2273 TopoDS_Edge NewEdge = TopoDS::Edge(aLocalShape);
6a442250 2274 TopoDS_Vertex V1, V2;
2275 TopExp::Vertices(E, V1, V2);
2276 Standard_Real fpar, lpar;
e11c1bc4 2277 Handle(Geom_Surface) aPlane;
2278 TopLoc_Location aLoc;
2279 Handle(Geom2d_Curve) PCurve;
2280 BRep_Tool::CurveOnSurface(E, PCurve, aPlane, aLoc, fpar, lpar);
2281 //BRep_Tool::Range(E, fpar, lpar);
2282
2283 Standard_Real TrPar1, TrPar2;
2284 Standard_Boolean ToTrimAsOrigin = IsInnerEdge(ProE, AllSpine, TrPar1, TrPar2);
2285
6a442250 2286 if (IndOfE == 1) //first edge of open wire
2287 {
2288 if (NewEdge.Orientation() == TopAbs_FORWARD)
2289 {
e11c1bc4 2290 if (ToTrimAsOrigin)
2291 {
2292 fpar = TrPar1;
2293 gp_Pnt2d TrPnt2d = PCurve->Value(fpar);
2294 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2295 V1 = BRepLib_MakeVertex(TrPnt);
2296 }
6a442250 2297 TheBuilder.Add(NewEdge, V1.Oriented(TopAbs_FORWARD));
2298 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_REVERSED));
2299 TheBuilder.Range(NewEdge, fpar, ThePar.First());
2300 }
2301 else
2302 {
e11c1bc4 2303 if (ToTrimAsOrigin)
2304 {
2305 lpar = TrPar2;
2306 gp_Pnt2d TrPnt2d = PCurve->Value(lpar);
2307 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2308 V2 = BRepLib_MakeVertex(TrPnt);
2309 }
6a442250 2310 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_REVERSED));
2311 TheBuilder.Add(NewEdge, V2.Oriented(TopAbs_FORWARD));
2312 TheBuilder.Range(NewEdge, ThePar.First(), lpar);
2313 }
7fd59977 2314 }
6a442250 2315 else //last edge of open wire
2316 {
2317 if (NewEdge.Orientation() == TopAbs_FORWARD)
2318 {
e11c1bc4 2319 if (ToTrimAsOrigin)
2320 {
2321 lpar = TrPar2;
2322 gp_Pnt2d TrPnt2d = PCurve->Value(lpar);
2323 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2324 V2 = BRepLib_MakeVertex(TrPnt);
2325 }
6a442250 2326 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_FORWARD));
2327 TheBuilder.Add(NewEdge, V2.Oriented(TopAbs_REVERSED));
2328 TheBuilder.Range(NewEdge, ThePar.First(), lpar);
2329 }
2330 else
2331 {
e11c1bc4 2332 if (ToTrimAsOrigin)
2333 {
2334 fpar = TrPar1;
2335 gp_Pnt2d TrPnt2d = PCurve->Value(fpar);
2336 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2337 V1 = BRepLib_MakeVertex(TrPnt);
2338 }
6a442250 2339 TheBuilder.Add(NewEdge, V1.Oriented(TopAbs_REVERSED));
2340 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_FORWARD));
2341 TheBuilder.Range(NewEdge, fpar, ThePar.First());
2342 }
7fd59977 2343 }
6a442250 2344 S.Append(NewEdge);
2345 }
2346 else
2347 {
2348 for (Standard_Integer k = 1; k < TheVer.Length(); k = k+2) {
2349 TopoDS_Shape aLocalShape = E.EmptyCopied();
2350 TopoDS_Edge NewEdge = TopoDS::Edge(aLocalShape);
2351 // TopoDS_Edge NewEdge = TopoDS::Edge(E.EmptyCopied());
2352
2353 if (NewEdge.Orientation() == TopAbs_REVERSED) {
2354 TheBuilder.Add (NewEdge,TheVer.Value(k) .Oriented(TopAbs_REVERSED));
2355 TheBuilder.Add (NewEdge,TheVer.Value(k+1).Oriented(TopAbs_FORWARD));
2356 }
2357 else {
2358 TheBuilder.Add (NewEdge,TheVer.Value(k) .Oriented(TopAbs_FORWARD));
2359 TheBuilder.Add (NewEdge,TheVer.Value(k+1).Oriented(TopAbs_REVERSED));
2360 }
2361
2362
2363 TheBuilder.Range(NewEdge,ThePar.Value(k),ThePar.Value(k+1));
2364
873c119f 2365#ifdef OCCT_DEBUG
7fd59977 2366#ifdef DRAW
6a442250 2367 if ( AffichEdge) {
2368 char name[256];
2369 sprintf(name,"TRIMEDGE_%d",NbTRIMEDGES);
2370 DBRep::Set(name,NewEdge);
2371 }
2372 if (Affich2d) {
2373 TopLoc_Location L;
2374 Standard_Real f,l;
2375 Handle(Geom_Surface) Surf;
2376 Handle(Geom2d_Curve) C;
2377 BRep_Tool::CurveOnSurface(NewEdge,C,Surf,L,f,l);
2378 char name[256];
2379 sprintf(name,"OFFSET2d_%d",NbTRIMEDGES++);
2380 Handle(Geom2d_TrimmedCurve) C2d = new Geom2d_TrimmedCurve(C,f,l);
2381 Handle(DrawTrSurf_Curve2d) dr =
2382 new DrawTrSurf_Curve2d(C2d,Standard_False);
2383 dr->SetColor(Draw_bleu);
2384 Draw::Set(name,dr);
2385 }
7fd59977 2386#endif
873c119f 2387#endif
6a442250 2388 S.Append(NewEdge);
2389 }
7fd59977 2390 }
2391}
2392
2393//=======================================================================
e11c1bc4 2394//function : IsInnerEdge
2395//purpose :
2396//=======================================================================
2397
2398static Standard_Boolean IsInnerEdge(const TopoDS_Shape& ProE,
2399 const TopoDS_Face& AllSpine,
2400 Standard_Real& TrPar1,
2401 Standard_Real& TrPar2)
2402{
2403 if (ProE.ShapeType() != TopAbs_EDGE)
2404 return Standard_False;
2405
2406 TopoDS_Edge anEdge = TopoDS::Edge(ProE);
2407
2408 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
2409 TopExp::MapShapesAndAncestors(AllSpine, TopAbs_VERTEX, TopAbs_EDGE, VEmap);
2410 for (Standard_Integer i = 1; i <= VEmap.Extent(); i++)
2411 {
2412 const TopTools_ListOfShape& LE = VEmap(i);
2413 if (LE.Extent() == 1 && anEdge.IsSame(LE.First()))
2414 return Standard_False;
2415 }
2416
2417 BRep_Tool::Range(anEdge, TrPar1, TrPar2);
2418 return Standard_True;
2419}
2420
2421
2422
2423//=======================================================================
7fd59977 2424//function : DoubleOrNotInside
0d969553 2425//purpose : return True if V appears twice in LV or is not inside.
7fd59977 2426//=======================================================================
2427
2428Standard_Boolean DoubleOrNotInside (const TopTools_ListOfShape& LV,
873c119f 2429 const TopoDS_Vertex& V)
7fd59977 2430{
2431 Standard_Boolean Vu = Standard_False;
2432 TopTools_ListIteratorOfListOfShape it(LV);
2433
2434 for ( ; it.More(); it.Next()) {
2435 if (V.IsSame(it.Value())) {
2436 if (Vu) return Standard_True;
2437 else Vu = Standard_True;
2438 }
2439 }
2440 if (Vu) return Standard_False;
2441 else return Standard_True;
2442}
2443
2444Standard_Boolean IsSmallClosedEdge(const TopoDS_Edge& anEdge,
873c119f 2445 const TopoDS_Vertex& aVertex)
7fd59977 2446{
2447 gp_Pnt PV = BRep_Tool::Pnt(aVertex);
2448 gp_Pnt2d PV2d, Pfirst, Plast, Pmid;
2449 PV2d.SetCoord( PV.X(), PV.Y() );
2450
2451 Handle(Geom2d_Curve) PCurve;
2452 Handle( BRep_CurveRepresentation ) CurveRep =
2453 ((Handle(BRep_TEdge)::DownCast(anEdge.TShape()))->Curves()).First();
2454 PCurve = CurveRep->PCurve();
2455
2456 Standard_Real fpar = (Handle(BRep_GCurve)::DownCast(CurveRep))->First();
2457 Standard_Real lpar = (Handle(BRep_GCurve)::DownCast(CurveRep))->Last();
2458 Pfirst = PCurve->Value(fpar);
2459 Plast = PCurve->Value(lpar);
2460 Pmid = PCurve->Value((fpar + lpar)*0.5);
2461
2462 Standard_Real theTol = BRep_Tool::Tolerance(aVertex);
2463 theTol *= 1.5;
2464
2465 Standard_Real dist1 = Pfirst.Distance(PV2d);
2466 Standard_Real dist2 = Plast.Distance(PV2d);
2467 Standard_Real dist3 = Pmid.Distance(PV2d);
2468
2469 if (dist1 <= theTol && dist2 <= theTol && dist3 <= theTol)
2470 return Standard_True;
2471
2472 return Standard_False;
2473}
2474
2475static void CheckBadEdges(const TopoDS_Face& Spine, const Standard_Real Offset,
873c119f 2476 const BRepMAT2d_BisectingLocus& Locus,
2477 const BRepMAT2d_LinkTopoBilo& Link,
2478 TopTools_ListOfShape& BadEdges)
7fd59977 2479{
2480
2481 TopoDS_Face F = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
2482 Standard_Real eps = Precision::Confusion();
2483 Standard_Real LimCurv = 1./Offset;
2484
2485 TopTools_MapOfShape aMap;
2486
2487 for (Standard_Integer ic = 1; ic <= Locus.NumberOfContours(); ic++) {
2488 for (Standard_Integer ie = 1; ie <= Locus.NumberOfElts(ic); ie++) {
2489 const TopoDS_Shape& SE = Link.GeneratingShape(Locus.BasicElt(ic,ie));
2490 if (SE.ShapeType() == TopAbs_EDGE) {
2491
873c119f 2492
2493 if (aMap.Contains(SE)) {
2494 //cout << "Edge is treated second time" << endl;
2495 continue;
2496 }
2497
2498
2499 TopoDS_Edge E = TopoDS::Edge(SE);
2500
2501
2502 Standard_Real f,l;
2503
2504
2505 Handle(Geom2d_Curve) G2d = BRep_Tool::CurveOnSurface(E,F,f,l);
2506
2507
2508 Geom2dAdaptor_Curve AC(G2d,f,l);
2509 GeomAbs_CurveType aCType = AC.GetType();
2510
2511
2512 if(aCType != GeomAbs_Line && aCType != GeomAbs_Circle) {
2513
2514
2515 Standard_Boolean reverse = Standard_False;
2516 if (E.Orientation() == TopAbs_FORWARD) reverse = Standard_True;
2517
2518
2519 gp_Pnt2d P, Pc;
2520 gp_Dir2d N;
2521
2522
2523 Geom2dLProp_CLProps2d aCLProps(G2d, 2, eps);
2524
2525
2526 aCLProps.SetParameter(f);
2527 if(!aCLProps.IsTangentDefined()) {
2528 BadEdges.Append(SE);
2529 aMap.Add(SE);
2530 continue;
2531 }
2532
2533
2534 P = aCLProps.Value();
2535 Standard_Real Crv = aCLProps.Curvature();
2536
2537
2538 if(Crv >= eps) {
2539 aCLProps.Tangent(N);
2540 Standard_Real x = N.Y(), y = -N.X();
2541 N.SetCoord(x, y);
2542 if (reverse) N.Reverse();
2543 aCLProps.CentreOfCurvature(Pc);
2544 gp_Vec2d Dir( P, Pc );
2545 if (N.Dot(Dir) > 0.) {
2546 if (LimCurv <= Crv + eps) {
2547 BadEdges.Append(SE);
2548 aMap.Add(SE);
2549 continue;
2550 }
2551 }
2552 }
2553
2554
2555 aCLProps.SetParameter(l);
2556 if(!aCLProps.IsTangentDefined()) {
2557 BadEdges.Append(SE);
2558 aMap.Add(SE);
2559 continue;
2560 }
2561
2562
2563 P = aCLProps.Value();
2564 Crv = aCLProps.Curvature();
2565
2566
2567 if(Crv >= eps) {
2568 aCLProps.Tangent(N);
2569 Standard_Real x = N.Y(), y = -N.X();
2570 N.SetCoord(x, y);
2571 if (reverse) N.Reverse();
2572 aCLProps.CentreOfCurvature(Pc);
2573 gp_Vec2d Dir( P, Pc );
2574 if (N.Dot(Dir) > 0.) {
2575 if (LimCurv <= Crv + eps) {
2576 BadEdges.Append(SE);
2577 aMap.Add(SE);
2578 continue;
2579 }
2580 }
2581 }
2582 }
7fd59977 2583 }
2584 }
2585 }
2586}
2587
2588
2589//=======================================================================
2590//function : PerformCurve
2591//purpose :
2592//=======================================================================
2593
2594static Standard_Boolean PerformCurve (TColStd_SequenceOfReal& Parameters,
873c119f 2595
2596 TColgp_SequenceOfPnt& Points,
2597 const Adaptor3d_Curve& C,
2598 const Standard_Real Deflection,
2599 const Standard_Real U1,
2600 const Standard_Real U2,
2601 const Standard_Real EPSILON,
2602 const Standard_Integer Nbmin)
7fd59977 2603{
2604 Standard_Real UU1 = Min(U1, U2);
2605 Standard_Real UU2 = Max(U1, U2);
2606
2607 gp_Pnt Pdeb, Pfin;
2608 gp_Vec Ddeb,Dfin;
2609 C.D1(UU1,Pdeb,Ddeb);
2610 Parameters.Append(UU1);
2611 Points.Append(Pdeb);
2612
2613 C.D1(UU2,Pfin,Dfin);
91bb31f3 2614
2615 const Standard_Real aDelta = UU2 - UU1;
2616 const Standard_Real aDist = Pdeb.Distance(Pfin);
2617
2618 if((aDelta/aDist) > 5.0e-14)
2619 {
2620 QuasiFleche(C,Deflection*Deflection,
873c119f 2621
2622 UU1,Pdeb,
2623 Ddeb,
2624 UU2,Pfin,
2625 Dfin,
2626 Nbmin,
2627 EPSILON*EPSILON,
2628 Parameters,Points);
91bb31f3 2629 }
2630
7fd59977 2631 return Standard_True;
2632}
2633//=======================================================================
2634//function : QuasiFleche
2635//purpose :
2636//=======================================================================
2637
2638static void QuasiFleche(const Adaptor3d_Curve& C,
873c119f 2639
2640 const Standard_Real Deflection2,
2641 const Standard_Real Udeb,
2642 const gp_Pnt& Pdeb,
2643 const gp_Vec& Vdeb,
2644 const Standard_Real Ufin,
2645 const gp_Pnt& Pfin,
2646 const gp_Vec& Vfin,
2647 const Standard_Integer Nbmin,
2648 const Standard_Real Eps,
2649 TColStd_SequenceOfReal& Parameters,
2650 TColgp_SequenceOfPnt& Points)
7fd59977 2651{
2652 Standard_Integer Ptslength = Points.Length();
2653 Standard_Real Udelta = Ufin-Udeb;
2654 gp_Pnt Pdelta;
2655 gp_Vec Vdelta;
2656 if (Nbmin > 2) {
2657 Udelta /=(Nbmin-1);
2658 C.D1(Udeb+Udelta,Pdelta,Vdelta);
2659 }
2660 else {
2661 Pdelta = Pfin;
2662 Vdelta = Vfin;
2663 }
2664
2665
2666 Standard_Real Norme = gp_Vec(Pdeb,Pdelta).SquareMagnitude();
2667 Standard_Real theFleche=0;
2668 Standard_Boolean flecheok = Standard_False;
2669 if (Norme > Eps) {
0d969553 2670 // Evaluation of the arrow by interpolation. See IntWalk_IWalking_5.gxx
7fd59977 2671 Standard_Real N1 = Vdeb.SquareMagnitude();
2672 Standard_Real N2 = Vdelta.SquareMagnitude();
2673 if (N1 > Eps && N2 > Eps) {
2674 Standard_Real Normediff =
873c119f 2675
2676 (Vdeb.Normalized().XYZ()-Vdelta.Normalized().XYZ()).SquareModulus();
7fd59977 2677 if (Normediff > Eps) {
873c119f 2678
2679 theFleche = Normediff*Norme/64.;
2680 flecheok = Standard_True;
7fd59977 2681 }
2682 }
2683 }
2684 if (!flecheok) {
2685 gp_Pnt Pmid((Pdeb.XYZ()+Pdelta.XYZ())/2.);
2686 gp_Pnt Pverif(C.Value(Udeb+Udelta/2.));
2687 theFleche = Pmid.SquareDistance(Pverif);
2688 }
2689
2690 if (theFleche < Deflection2) {
2691 Parameters.Append(Udeb+Udelta);
2692 Points.Append(Pdelta);
2693 }
2694 else {
2695 QuasiFleche(C,Deflection2,Udeb,Pdeb,
873c119f 2696
2697 Vdeb,
2698 Udeb+Udelta,Pdelta,
2699 Vdelta,
2700 3,
2701 Eps,
2702 Parameters,Points);
7fd59977 2703
2704 }
2705
2706 if (Nbmin > 2) {
2707 QuasiFleche(C,Deflection2,Udeb+Udelta,Pdelta,
873c119f 2708
2709 Vdelta,
2710 Ufin,Pfin,
2711 Vfin,
2712 Nbmin-(Points.Length()-Ptslength),
2713 Eps,
2714 Parameters,Points);
7fd59977 2715 }
2716}
ab87e6fc 2717