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0026508: Add the possibility to get label from XCAFPrs_AISObject.
[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
42cf5bc1 19#include <Adaptor3d_Curve.hxx>
20#include <Adaptor3d_OffsetCurve.hxx>
21#include <Bisector_Bisec.hxx>
22#include <BRep_Builder.hxx>
23#include <BRep_CurveRepresentation.hxx>
24#include <BRep_GCurve.hxx>
25#include <BRep_TEdge.hxx>
26#include <BRep_Tool.hxx>
27#include <BRep_TVertex.hxx>
7fd59977 28#include <BRepAdaptor_Curve.hxx>
29#include <BRepAdaptor_Surface.hxx>
7fd59977 30#include <BRepFill_DataMapOfNodeShape.hxx>
42cf5bc1 31#include <BRepFill_DataMapOfOrientedShapeListOfShape.hxx>
7fd59977 32#include <BRepFill_DataMapOfShapeSequenceOfPnt.hxx>
42cf5bc1 33#include <BRepFill_DataMapOfShapeSequenceOfReal.hxx>
34#include <BRepFill_OffsetWire.hxx>
7fd59977 35#include <BRepFill_TrimEdgeTool.hxx>
36#include <BRepLib.hxx>
42cf5bc1 37#include <BRepLib_MakeEdge.hxx>
7fd59977 38#include <BRepLib_MakeFace.hxx>
42cf5bc1 39#include <BRepLib_MakeVertex.hxx>
7fd59977 40#include <BRepLib_MakeWire.hxx>
42cf5bc1 41#include <BRepMAT2d_BisectingLocus.hxx>
42#include <BRepMAT2d_Explorer.hxx>
43#include <BRepMAT2d_LinkTopoBilo.hxx>
7fd59977 44#include <BRepTools.hxx>
42cf5bc1 45#include <BRepTools_Substitution.hxx>
7fd59977 46#include <BRepTools_WireExplorer.hxx>
42cf5bc1 47#include <Geom2d_BSplineCurve.hxx>
7fd59977 48#include <Geom2d_Circle.hxx>
42cf5bc1 49#include <Geom2d_Curve.hxx>
7fd59977 50#include <Geom2d_Line.hxx>
7fd59977 51#include <Geom2d_OffsetCurve.hxx>
42cf5bc1 52#include <Geom2d_TrimmedCurve.hxx>
53#include <Geom2dAdaptor_Curve.hxx>
54#include <Geom2dAdaptor_HCurve.hxx>
55#include <Geom2dConvert_CompCurveToBSplineCurve.hxx>
56#include <Geom2dLProp_CLProps2d.hxx>
7fd59977 57#include <Geom_Circle.hxx>
6a442250 58#include <Geom_Line.hxx>
7fd59977 59#include <Geom_OffsetCurve.hxx>
42cf5bc1 60#include <Geom_Plane.hxx>
61#include <Geom_Surface.hxx>
62#include <Geom_TrimmedCurve.hxx>
63#include <GeomAPI.hxx>
64#include <gp.hxx>
65#include <gp_Ax2.hxx>
66#include <gp_Dir2d.hxx>
67#include <gp_Pln.hxx>
68#include <gp_Vec.hxx>
69#include <MAT2d_CutCurve.hxx>
7fd59977 70#include <MAT_Arc.hxx>
7fd59977 71#include <MAT_Graph.hxx>
42cf5bc1 72#include <MAT_Node.hxx>
7fd59977 73#include <Precision.hxx>
42cf5bc1 74#include <Standard_ConstructionError.hxx>
75#include <Standard_ErrorHandler.hxx>
76#include <Standard_NoSuchObject.hxx>
7fd59977 77#include <Standard_NotImplemented.hxx>
42cf5bc1 78#include <TColgp_Array1OfPnt2d.hxx>
7fd59977 79#include <TColgp_SequenceOfPnt.hxx>
42cf5bc1 80#include <TColStd_Array1OfInteger.hxx>
81#include <TColStd_Array1OfReal.hxx>
82#include <TColStd_SequenceOfReal.hxx>
83#include <TopAbs.hxx>
7fd59977 84#include <TopExp.hxx>
85#include <TopExp_Explorer.hxx>
86#include <TopoDS.hxx>
7fd59977 87#include <TopoDS_Compound.hxx>
42cf5bc1 88#include <TopoDS_Face.hxx>
7fd59977 89#include <TopoDS_Iterator.hxx>
42cf5bc1 90#include <TopoDS_Shape.hxx>
91#include <TopoDS_Wire.hxx>
7fd59977 92#include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
93#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
42cf5bc1 94#include <TopTools_DataMapOfShapeListOfShape.hxx>
7fd59977 95#include <TopTools_DataMapOfShapeSequenceOfShape.hxx>
42cf5bc1 96#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
7fd59977 97#include <TopTools_IndexedMapOfShape.hxx>
42cf5bc1 98#include <TopTools_ListIteratorOfListOfShape.hxx>
99#include <TopTools_ListOfShape.hxx>
100#include <TopTools_MapIteratorOfMapOfShape.hxx>
101#include <TopTools_MapOfShape.hxx>
102#include <TopTools_SequenceOfShape.hxx>
103
104#include <stdio.h>
873c119f 105#ifdef OCCT_DEBUG
106//#define DRAW
7fd59977 107#ifdef DRAW
108#include <Draw.hxx>
109#include <DrawTrSurf.hxx>
110#include <DrawTrSurf_Curve2d.hxx>
111#include <DBRep.hxx>
ec357c5c 112#include <Geom_Curve.hxx>
7fd59977 113static Standard_Boolean AffichGeom = Standard_False;
114static Standard_Boolean Affich2d = Standard_False;
115static Standard_Boolean AffichEdge = Standard_False;
116static Standard_Integer NbTRIMEDGES = 0;
117static Standard_Integer NbOFFSET = 0;
118static Standard_Integer NbEDGES = 0;
119static Standard_Integer NbBISSEC = 0;
7fd59977 120#endif
873c119f 121#endif
7fd59977 122
123// Modified by Sergey KHROMOV - Thu Nov 16 17:24:39 2000 Begin
124
125static void QuasiFleche(const Adaptor3d_Curve& C,
873c119f 126 const Standard_Real Deflection2,
127 const Standard_Real Udeb,
128 const gp_Pnt& Pdeb,
129 const gp_Vec& Vdeb,
130 const Standard_Real Ufin,
131 const gp_Pnt& Pfin,
132 const gp_Vec& Vfin,
133 const Standard_Integer Nbmin,
134 const Standard_Real Eps,
135 TColStd_SequenceOfReal& Parameters,
136 TColgp_SequenceOfPnt& Points);
7fd59977 137
138static Standard_Boolean PerformCurve (TColStd_SequenceOfReal& Parameters,
873c119f 139 TColgp_SequenceOfPnt& Points,
140 const Adaptor3d_Curve& C,
141 const Standard_Real Deflection,
142 const Standard_Real U1,
143 const Standard_Real U2,
144 const Standard_Real EPSILON,
145 const Standard_Integer Nbmin);
7fd59977 146
147static void CheckBadEdges(const TopoDS_Face& Spine, const Standard_Real Offset,
873c119f 148 const BRepMAT2d_BisectingLocus& Locus,
149 const BRepMAT2d_LinkTopoBilo& Link,
150 TopTools_ListOfShape& BadEdges);
7fd59977 151
152static Standard_Integer CutEdge (const TopoDS_Edge& E,
873c119f 153 const TopoDS_Face& F,
154 Standard_Integer ForceCut,
155 TopTools_ListOfShape& Cuts);
7fd59977 156
157
158static void CutCurve (const Handle(Geom2d_TrimmedCurve)& C,
873c119f 159 const Standard_Integer nbParts,
160 TColGeom2d_SequenceOfCurve& theCurves);
7fd59977 161// Modified by Sergey KHROMOV - Thu Nov 16 17:24:47 2000 End
162
163
164static void EdgeVertices (const TopoDS_Edge& E,
873c119f 165 TopoDS_Vertex& V1,
166 TopoDS_Vertex& V2)
7fd59977 167{
168 if (E.Orientation() == TopAbs_REVERSED) {
169 TopExp::Vertices(E,V2,V1);
170 }
171 else {
172 TopExp::Vertices(E,V1,V2);
173 }
174}
7fd59977 175static Standard_Boolean VertexFromNode
873c119f 176 (const Handle(MAT_Node)& aNode,
177 const Standard_Real Offset,
178 gp_Pnt2d& PN,
179 BRepFill_DataMapOfNodeShape& MapNodeVertex,
180 TopoDS_Vertex& VN);
7fd59977 181
182static void StoreInMap (const TopoDS_Shape& V1,
873c119f 183 const TopoDS_Shape& V2,
184 TopTools_IndexedDataMapOfShapeShape& MapVV);
7fd59977 185
186static void TrimEdge (const TopoDS_Edge& CurrentEdge,
e11c1bc4 187 const TopoDS_Shape& CurrentSpine,
188 const TopoDS_Face& AllSpine,
873c119f 189 const TopTools_ListOfShape& D,
6a442250 190 TopTools_SequenceOfShape& Sv,
191 TColStd_SequenceOfReal& MapverPar,
192 TopTools_SequenceOfShape& S,
193 TopTools_IndexedDataMapOfShapeShape& MapVV,
194 const Standard_Integer IndOfE);
7fd59977 195
e11c1bc4 196static Standard_Boolean IsInnerEdge(const TopoDS_Shape& ProE,
197 const TopoDS_Face& AllSpine,
198 Standard_Real& TrPar1,
199 Standard_Real& TrPar2);
200
7fd59977 201static Standard_Boolean DoubleOrNotInside (const TopTools_ListOfShape& EC,
873c119f 202 const TopoDS_Vertex& V);
7fd59977 203
204static Standard_Boolean IsSmallClosedEdge(const TopoDS_Edge& anEdge,
873c119f 205 const TopoDS_Vertex& aVertex);
7fd59977 206
207static void MakeCircle
873c119f 208 (const TopoDS_Edge& E,
209 const TopoDS_Vertex& V,
210 const TopoDS_Face& F,
211 const Standard_Real Offset,
212 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
213 const Handle(Geom_Plane)& RefPlane);
7fd59977 214
215static void MakeOffset
873c119f 216 (const TopoDS_Edge& E,
217 const TopoDS_Face& F,
218 const Standard_Real Offset,
219 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
220 const Handle(Geom_Plane)& RefPlane,
221 const Standard_Boolean IsOpenResult,
c7806cb6 222 const GeomAbs_JoinType theJoinType,
873c119f 223 const TopoDS_Vertex * Ends);
7fd59977 224
225//=======================================================================
226//function : KPartCircle
227//purpose :
228//=======================================================================
229
230static Standard_Boolean KPartCircle
873c119f 231 (const TopoDS_Face& mySpine,
232 const Standard_Real myOffset,
233 const Standard_Boolean IsOpenResult,
234 const Standard_Real Alt,
235 TopoDS_Shape& myShape,
236 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& myMap,
237 Standard_Boolean& myIsDone)
7fd59977 238{
7fd59977 239 TopExp_Explorer exp(mySpine,TopAbs_EDGE);
240 Standard_Integer NbEdges = 0;
241 TopoDS_Edge E;
242
243 for (; exp.More(); exp.Next()) {
244 NbEdges++;
245 E = TopoDS::Edge(exp.Current());
246 if (NbEdges > 1) return Standard_False;
247 }
7fd59977 248
249 Standard_Real f,l;
250 TopLoc_Location L;
251 Handle(Geom_Curve) C = BRep_Tool::Curve(E,L,f,l);
252
253 if (C->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
254 Handle(Geom_TrimmedCurve) Ct = Handle(Geom_TrimmedCurve)::DownCast(C);
255 C = Ct->BasisCurve();
256 }
257
da72a17c 258 if ((C->IsKind(STANDARD_TYPE(Geom_Circle)) && BRep_Tool::IsClosed(E)) || //closed circle
e11c1bc4 259 IsOpenResult)
6a442250 260 {
6a442250 261 Standard_Real anOffset = myOffset;
6a442250 262
0e0f7a7c 263 Handle(Geom2d_Curve) aPCurve = BRep_Tool::CurveOnSurface(E, mySpine, f, l);
6a442250 264 Handle(Geom2dAdaptor_HCurve) AHC = new Geom2dAdaptor_HCurve(aPCurve, f, l);
0e0f7a7c 265 Handle(Geom2d_Curve) OC;
266 if (AHC->GetType() == GeomAbs_Line)
267 {
ef237d73 268 if (E.Orientation() == TopAbs_REVERSED)
269 anOffset *= -1;
0e0f7a7c 270 Adaptor3d_OffsetCurve Off(AHC,anOffset);
271 OC = new Geom2d_Line(Off.Line());
272 }
273 else if (AHC->GetType() == GeomAbs_Circle)
274 {
ef237d73 275 if (E.Orientation() == TopAbs_FORWARD)
276 anOffset *= -1;
0e0f7a7c 277 gp_Circ2d theCirc = AHC->Circle();
c7806cb6 278 if (anOffset > 0. || Abs(anOffset) < theCirc.Radius())
279 OC = new Geom2d_Circle (theCirc.Position(), theCirc.Radius() + anOffset);
280 else
281 {
282 myIsDone = Standard_False;
283 return Standard_False;
873c119f 284 }
0e0f7a7c 285 }
286 else
287 {
ef237d73 288 if (E.Orientation() == TopAbs_FORWARD)
289 anOffset *= -1;
0e0f7a7c 290 Handle(Geom2d_TrimmedCurve) G2dT = new Geom2d_TrimmedCurve(aPCurve, f, l);
291 OC = new Geom2d_OffsetCurve( G2dT, anOffset);
292 }
293 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(mySpine);
6a442250 294 Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(aSurf);
0e0f7a7c 295 myShape = BRepLib_MakeEdge(OC, aPlane, f, l);
6a442250 296 BRepLib::BuildCurve3d(TopoDS::Edge(myShape));
297
298 myShape.Orientation(E.Orientation());
299 myShape.Location(L);
300 if (Alt != 0.) {
301 BRepAdaptor_Surface S(mySpine,0);
302 gp_Ax1 Nor = S.Plane().Axis();
303 gp_Trsf T;
304 gp_Vec Trans(Nor.Direction());
305 Trans = Alt*Trans;
306 T.SetTranslation(Trans);
307 myShape.Move(TopLoc_Location(T));
308 }
309
310 TopTools_ListOfShape LL;
311 LL.Append(myShape);
312 myMap.Add(E,LL);
313
314 TopoDS_Edge myEdge = TopoDS::Edge(myShape);
315 myShape = BRepLib_MakeWire(myEdge);
316
317 myIsDone = Standard_True;
318 return Standard_True;
319 }
7fd59977 320
0e0f7a7c 321 return Standard_False;
7fd59977 322}
323
324//=======================================================================
325//function : BRepFill_OffsetWire
326//purpose :
327//=======================================================================
328
329BRepFill_OffsetWire::BRepFill_OffsetWire()
6a442250 330 : myIsOpenResult(Standard_False),
331 myIsDone(Standard_False)
7fd59977 332{
333}
334
335
336//=======================================================================
337//function : BRepFill_OffsetWire
338//purpose :
339//=======================================================================
340
341BRepFill_OffsetWire::BRepFill_OffsetWire(const TopoDS_Face& Spine,
873c119f 342 const GeomAbs_JoinType Join,
343 const Standard_Boolean IsOpenResult)
7fd59977 344{
6a442250 345 Init(Spine,Join,IsOpenResult);
7fd59977 346}
347
7fd59977 348//=======================================================================
349//function : Init
350//purpose :
351//=======================================================================
352
353void BRepFill_OffsetWire::Init(const TopoDS_Face& Spine,
873c119f 354 const GeomAbs_JoinType Join,
355 const Standard_Boolean IsOpenResult)
7fd59977 356{
7fd59977 357 myIsDone = Standard_False;
358 TopoDS_Shape aLocalShape = Spine.Oriented(TopAbs_FORWARD);
359 mySpine = TopoDS::Face(aLocalShape);
873c119f 360 // mySpine = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
7fd59977 361 myJoinType = Join;
6a442250 362 myIsOpenResult = IsOpenResult;
873c119f 363
7fd59977 364 myMap.Clear();
365 myMapSpine.Clear();
366 //------------------------------------------------------------------
0d969553 367 // cut the spine for bissectors.
7fd59977 368 //------------------------------------------------------------------
873c119f 369 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 Begin
7fd59977 370 static BRepMAT2d_Explorer Exp;
371
372 Exp.Perform(mySpine);
373
873c119f 374 // TopoDS_Face anOldSpine = mySpine;
7fd59977 375
376 mySpine = TopoDS::Face(Exp.ModifiedShape(mySpine));
377 PrepareSpine ();
378
873c119f 379 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 End
7fd59977 380 TopoDS_Shape aShape;
86b3805f 381 BRepFill_IndexedDataMapOfOrientedShapeListOfShape aMap;
7fd59977 382 Standard_Boolean Done;
e11c1bc4 383 if (KPartCircle(myWorkSpine,1.,myIsOpenResult,0.,aShape,aMap,Done)) return;
873c119f 384
7fd59977 385
386 //-----------------------------------------------------
0d969553
Y		 387 // Calculate the map of bissectors to the left.
388 // and Links Topology -> base elements of the map.
7fd59977 389 //-----------------------------------------------------
390
873c119f 391 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 Begin
392 // static BRepMAT2d_Explorer Exp;
393 // Modified by Sergey KHROMOV - Tue Nov 26 17:39:03 2002 End
7fd59977 394 Exp.Perform(myWorkSpine);
c19dd45e 395 myBilo.Compute(Exp, 1 ,MAT_Left, myJoinType, myIsOpenResult);
873c119f 396 myLink.Perform(Exp,myBilo);
7fd59977 397}
398
399
400//=======================================================================
401//function : IsDone
402//purpose :
403//=======================================================================
404
405Standard_Boolean BRepFill_OffsetWire::IsDone() const
406{
407 return myIsDone;
408}
409
410
411//=======================================================================
412//function : Spine
413//purpose :
414//=======================================================================
415
416const TopoDS_Face& BRepFill_OffsetWire::Spine() const
417{
418 return mySpine;
419}
420
421
422//=======================================================================
423//function : Shape
424//purpose :
425//=======================================================================
426
427const TopoDS_Shape& BRepFill_OffsetWire::Shape() const
428{
429 return myShape;
430}
431
432
433//=======================================================================
434//function : GeneratedShapes
435//purpose :
436//=======================================================================
437
438const TopTools_ListOfShape& BRepFill_OffsetWire::GeneratedShapes
873c119f 439 (const TopoDS_Shape& SpineShape)
7fd59977 440{
441 if (!myCallGen) {
442 if (!myMapSpine.IsEmpty()) {
0d969553 443 // myMapSpine can be empty if passed by PerformWithBilo.
7fd59977 444 TopTools_DataMapIteratorOfDataMapOfShapeShape it(myMapSpine);
445 for (; it.More(); it.Next()) {
86b3805f
J		 446 if (myMap.Contains(it.Key())) {
447 if (!myMap.Contains(it.Value())) {
7fd59977 448 TopTools_ListOfShape L;
86b3805f 449 myMap.Add(it.Value(),L);
7fd59977 450 }
451 if ( !it.Value().IsSame(it.Key())) {
86b3805f
J		 452 myMap.ChangeFromKey(it.Value()).Append(myMap.ChangeFromKey(it.Key()));
453 //myMap.UnBind(it.Key());
454 TopoDS_Shape LastShape = myMap.FindKey(myMap.Extent());
455 TopTools_ListOfShape LastList;
456 LastList.Append(myMap(myMap.Extent()));
457 myMap.RemoveLast();
458 if (myMap.FindIndex(it.Key()) != 0)
459 myMap.Substitute(myMap.FindIndex(it.Key()), LastShape, LastList);
7fd59977 460 }
461 }
86b3805f
J		 462 if (myMap.Contains(it.Key().Reversed())) {
463 if (!myMap.Contains(it.Value().Reversed())) {
7fd59977 464 TopTools_ListOfShape L;
86b3805f 465 myMap.Add(it.Value().Reversed(),L);
7fd59977 466 }
467 if ( !it.Value().IsSame(it.Key())) {
86b3805f
J		 468 myMap.ChangeFromKey(it.Value().Reversed()).Append(myMap.ChangeFromKey(it.Key().Reversed()));
469 //myMap.UnBind(it.Key().Reversed());
470 TopoDS_Shape LastShape = myMap.FindKey(myMap.Extent());
471 TopTools_ListOfShape LastList;
472 LastList.Append(myMap(myMap.Extent()));
473 myMap.RemoveLast();
474 if (myMap.FindIndex(it.Key().Reversed()) != 0)
475 myMap.Substitute(myMap.FindIndex(it.Key().Reversed()), LastShape, LastList);
7fd59977 476 }
477 }
478 }
479 }
480 myCallGen = Standard_True;
481 }
873c119f 482
86b3805f
J		 483 if (myMap.Contains(SpineShape)) {
484 return myMap.FindFromKey(SpineShape);
7fd59977 485 }
486 else {
487 static TopTools_ListOfShape Empty;
488 return Empty;
489 }
490}
491
492
493//=======================================================================
494//function : JoinType
495//purpose :
496//=======================================================================
497
498GeomAbs_JoinType BRepFill_OffsetWire::JoinType() const
499{
500 return myJoinType;
501}
502
503//=======================================================================
504//function : Perform
505//purpose :
506//=======================================================================
507
508void BRepFill_OffsetWire::Perform (const Standard_Real Offset,
873c119f 509 const Standard_Real Alt)
7fd59977 510{
91bb31f3 511 // Modified by skv - Fri Jul 8 11:21:38 2005 OCC9145 Begin
512 try
513 {
7fd59977 514 OCC_CATCH_SIGNALS
91bb31f3 515 myCallGen = Standard_False;
e11c1bc4 516 if (KPartCircle(myWorkSpine,Offset,myIsOpenResult,Alt,myShape,myMap,myIsDone)) return;
7fd59977 517
518 TopoDS_Face oldWorkSpain = myWorkSpine;
519
520 TopTools_ListOfShape BadEdges;
521 CheckBadEdges(myWorkSpine,Offset,myBilo,myLink,BadEdges);
522
91bb31f3 523 if(!BadEdges.IsEmpty())
524 {
7fd59977 525 // Modification of myWorkSpine;
526 //cout << "Modification of myWorkSpine : " << BadEdges.Extent() << endl;
527 BRepTools_Substitution aSubst;
528 TopTools_ListIteratorOfListOfShape it(BadEdges);
529 TopTools_ListOfShape aL;
530 Standard_Real aDefl = .01 * Abs(Offset);
531 TColStd_SequenceOfReal Parameters;
532 TColgp_SequenceOfPnt Points;
533
534 for(; it.More(); it.Next()) {
91bb31f3 535 aL.Clear();
536 Parameters.Clear();
537 Points.Clear();
538 const TopoDS_Shape& anE = it.Value();
539
540 TopoDS_Vertex Vf, Vl;
541 TopExp::Vertices(TopoDS::Edge(anE), Vf, Vl);
542
543 Standard_Real f, l;
544 Handle(Geom_Curve) G3d = BRep_Tool::Curve(TopoDS::Edge(anE),f,l);
545 GeomAdaptor_Curve AC(G3d,f,l);
546
547 PerformCurve(Parameters, Points, AC, aDefl, f,
873c119f 548 l, Precision::Confusion(), 2);
91bb31f3 549
550 Standard_Integer NPnts = Points.Length();
551 if(NPnts > 2)
552 {
553 //cout << NPnts << " points " << endl;
554 TopoDS_Vertex FV = Vf;
555 TopoDS_Vertex LV;
556 TopoDS_Edge newE;
557 Standard_Integer np;
558 for(np = 2; np < NPnts; np++) {
559 gp_Pnt LP = Points(np);
560 LV = BRepLib_MakeVertex(LP);
561 newE = BRepLib_MakeEdge(FV, LV);
562 aL.Append(newE);
563 FV = LV;
564 }
565 LV = Vl;
566 newE = BRepLib_MakeEdge(FV, LV);
567 aL.Append(newE);
568 }
569 else
570 {
571 //cout << " 2 points " << endl;
572 TopoDS_Edge newE = BRepLib_MakeEdge(Vf, Vl);
573 aL.Append(newE);
574 }
575 //Update myMapSpine
576 if (myMapSpine.IsBound( anE ))
577 {
578 TopTools_ListIteratorOfListOfShape newit( aL );
579 for (; newit.More(); newit.Next())
580 {
581 TopoDS_Edge NewEdge = TopoDS::Edge( newit.Value() );
582 myMapSpine.Bind( NewEdge, myMapSpine(anE) );
583 TopoDS_Vertex NewV1, NewV2;
584 EdgeVertices( NewEdge, NewV1, NewV2 );
585 if (!myMapSpine.IsBound(NewV1)) myMapSpine.Bind( NewV1, myMapSpine(anE) );
586 if (!myMapSpine.IsBound(NewV2)) myMapSpine.Bind( NewV2, myMapSpine(anE) );
587 }
588 myMapSpine.UnBind( anE );
589 }
590 ///////////////////
591 aSubst.Substitute(anE, aL);
7fd59977 592 }
593
594 TopTools_DataMapOfShapeListOfShape wwmap;
595 TopoDS_Iterator itws( myWorkSpine );
596 for (; itws.More(); itws.Next())
91bb31f3 597 {
598 TopoDS_Shape aWire = itws.Value();
599 aSubst.Build( aWire );
600 if (aSubst.IsCopied(aWire))
601 {
602 TopoDS_Wire NewWire = TopoDS::Wire( aSubst.Copy(aWire).First() );
603 NewWire.Closed( aWire.Closed() );
604 TopTools_ListOfShape Lw;
605 Lw.Append( NewWire );
606 wwmap.Bind( aWire, Lw );
607 }
608 }
7fd59977 609 aSubst.Clear();
610 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itmap( wwmap );
611 for (; itmap.More(); itmap.Next())
91bb31f3 612 aSubst.Substitute( itmap.Key(), itmap.Value() );
873c119f 613
7fd59977 614 aSubst.Build(myWorkSpine);
873c119f 615
7fd59977 616 if(aSubst.IsCopied(myWorkSpine)) {
91bb31f3 617 myWorkSpine = TopoDS::Face(aSubst.Copy(myWorkSpine).First());
ab87e6fc 618
91bb31f3 619 BRepMAT2d_Explorer newExp;
620 newExp.Perform(myWorkSpine);
621 BRepMAT2d_BisectingLocus newBilo;
622 BRepMAT2d_LinkTopoBilo newLink;
c19dd45e 623 newBilo.Compute(newExp, 1, MAT_Left, myJoinType, myIsOpenResult);
ab87e6fc 624
91bb31f3 625 if(!newBilo.IsDone())
626 {
627 myShape.Nullify();
628 myIsDone = Standard_False;
629 return;
630 }
7fd59977 631
91bb31f3 632 newLink.Perform(newExp,newBilo);
633 PerformWithBiLo(myWorkSpine,Offset,newBilo,newLink,myJoinType,Alt);
634 myWorkSpine = oldWorkSpain;
7fd59977 635 }
636 else {
91bb31f3 637 PerformWithBiLo(myWorkSpine,Offset,myBilo,myLink,myJoinType,Alt);
7fd59977 638 }
7fd59977 639 }
91bb31f3 640 else
641 {
7fd59977 642 PerformWithBiLo(myWorkSpine,Offset,myBilo,myLink,myJoinType,Alt);
643 }
ab87e6fc 644 }
b350f6ee 645 catch (Standard_Failure)//Every exception was caught.
91bb31f3 646 {
7fd59977 647 myShape.Nullify();
648 myIsDone = Standard_False;
0797d9d3 649#ifdef OCCT_DEBUG
ab87e6fc 650 cout<<"An exception was caught in BRepFill_OffsetWire::Perform : ";
651 Standard_Failure::Caught()->Print(cout);
652 cout<<endl;
63c629aa 653#endif
91bb31f3 654
7fd59977 655 return;
656 }
ab87e6fc 657
91bb31f3 658 // Modified by skv - Fri Jul 8 11:21:38 2005 OCC9145 End
659 // Modified by Sergey KHROMOV - Thu Mar 14 10:48:15 2002 Begin
6a442250 660 if (!myIsOpenResult)
661 {
662 TopExp_Explorer anExp(myShape, TopAbs_WIRE);
873c119f 663
6a442250 664 for (; anExp.More(); anExp.Next()) {
665 const TopoDS_Shape &aWire = anExp.Current();
873c119f 666
6a442250 667 if (!aWire.Closed()) {
668 myShape.Nullify();
669 myIsDone = Standard_False;
670 Standard_ConstructionError::Raise("Offset wire is not closed.");
671 }
7fd59977 672 }
673 }
91bb31f3 674 // Modified by Sergey KHROMOV - Thu Mar 14 10:48:16 2002 End
7fd59977 675}
676
677//=======================================================================
678//function : Compute
679//purpose :
680//=======================================================================
681
682void Compute (const TopoDS_Face& Spine,
873c119f 683 TopoDS_Shape& aShape,
684 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
685 const Standard_Real Alt)
7fd59977 686{
687 BRep_Builder B;
688 B.MakeCompound(TopoDS::Compound(aShape));
689 Standard_Real ALT = Alt;
690 if ( Spine.Orientation() == TopAbs_REVERSED) ALT = -Alt;
691 gp_Trsf T;
692 T.SetTranslation(gp_Vec(0.,0.,ALT));
693 TopLoc_Location L(T);
694
695 for ( TopExp_Explorer exp(Spine,TopAbs_WIRE); exp.More(); exp.Next()) {
696 const TopoDS_Wire& CurW = TopoDS::Wire(exp.Current());
697 TopoDS_Shape aLocalShape = CurW.Moved(L);
698 TopoDS_Wire NewW = TopoDS::Wire(aLocalShape);
873c119f 699 // TopoDS_Wire NewW = TopoDS::Wire(CurW.Moved(L));
7fd59977 700 B.Add(aShape,NewW);
0d969553 701 // update Map.
7fd59977 702 TopoDS_Iterator it1( CurW);
703 TopoDS_Iterator it2( NewW);
704 for ( ; it1.More(); it1.Next(), it2.Next()) {
705 TopTools_ListOfShape List;
706 List.Append(it2.Value());
86b3805f 707 Map.Add(it1.Value(), List);
7fd59977 708 }
709 }
710}
711
712//=======================================================================
713//function : PerformWithBiLo
714//purpose :
715//=======================================================================
716
717void BRepFill_OffsetWire::PerformWithBiLo
873c119f 718 (const TopoDS_Face& Spine,
719 const Standard_Real Offset,
720 const BRepMAT2d_BisectingLocus& Locus,
721 BRepMAT2d_LinkTopoBilo& Link,
722 const GeomAbs_JoinType Join,
723 const Standard_Real Alt)
7fd59977 724{
7fd59977 725 myIsDone = Standard_False;
726 TopoDS_Shape aLocalShape = Spine.Oriented(TopAbs_FORWARD);
727 myWorkSpine = TopoDS::Face(aLocalShape);
873c119f 728 // myWorkSpine = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
7fd59977 729 myJoinType = Join;
730 myOffset = Offset ;
731 myShape.Nullify();
732
733
734 if (mySpine.IsNull()) {
735 TopoDS_Shape aLocalShape = Spine.Oriented(TopAbs_FORWARD);
736 mySpine = TopoDS::Face(aLocalShape);
873c119f 737 // mySpine = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
738 }
7fd59977 739 myMap.Clear();
740
7fd59977 741 if ( Abs(myOffset) < Precision::Confusion()) {
742 Compute(mySpine,myShape,myMap,Alt);
743 myIsDone = Standard_True;
744 return;
745 }
746
0d969553
Y		 747 //********************************
748 // Calculate for a non null offset
749 //********************************
e11c1bc4 750 if (KPartCircle(myWorkSpine,Offset,myIsOpenResult,Alt,myShape,myMap,myIsDone))
91bb31f3 751 return;
7fd59977 752
753 BRep_Builder myBuilder;
754 myBuilder.MakeCompound(TopoDS::Compound(myShape));
873c119f 755
7fd59977 756 //---------------------------------------------------------------------
0d969553
Y		 757 // MapNodeVertex : associate to each node of the map (key1) and to
758 // each element of the profile (key2) a vertex (item).
759 // MapBis : all edges or vertices (item) generated by
760 // a bisectrice on a face or an edge (key) of revolution tubes.
761 // MapVerPar : Map of parameters of vertices on parallel edges
762 // the list contained in MapVerPar (E) corresponds to
763 // parameters on E of vertices contained in MapBis(E);
7fd59977 764 //---------------------------------------------------------------------
765
766
767 BRepFill_DataMapOfNodeShape MapNodeVertex;
768 TopTools_DataMapOfShapeSequenceOfShape MapBis;
769 BRepFill_DataMapOfShapeSequenceOfReal MapVerPar;
770
771 TopTools_DataMapOfShapeShape EmptyMap;
772 TopTools_SequenceOfShape EmptySeq;
773 TopTools_ListOfShape EmptyList;
774 TColStd_SequenceOfReal EmptySeqOfReal;
775
776 Standard_Real ALT = Alt;
777 Handle(Geom_Plane) RefPlane =
778 Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(myWorkSpine));
779 if ( myWorkSpine.Orientation() == TopAbs_REVERSED) ALT = -Alt;
780 RefPlane = Handle(Geom_Plane)::DownCast
781 (RefPlane->Translated( ALT * gp_Vec(RefPlane->Axis().Direction() )));
782
783 //---------------------------------------------------------------
0d969553 784 // Construction of Circles and OffsetCurves
7fd59977 785 //---------------------------------------------------------------
6a442250 786
787 TopoDS_Vertex Ends [2];
788 if (myIsOpenResult)
789 {
790 TopoDS_Wire theWire;
791 TopoDS_Iterator iter(mySpine);
792 theWire = TopoDS::Wire(iter.Value());
793 TopExp::Vertices(theWire, Ends[0], Ends[1]);
794 }
873c119f 795
7fd59977 796 for (Standard_Integer ic = 1; ic <= Locus.NumberOfContours(); ic++) {
797 TopoDS_Shape PEE = Link.GeneratingShape(Locus.BasicElt(ic,Locus.NumberOfElts(ic)));
798 TopoDS_Shape& PE = PEE ;
799 for (Standard_Integer ie = 1; ie <= Locus.NumberOfElts(ic); ie++) {
800 const TopoDS_Shape& SE = Link.GeneratingShape(Locus.BasicElt(ic,ie));
801 if (SE.ShapeType() == TopAbs_VERTEX) {
0e0f7a7c 802 if (!SE.IsSame(Ends[0]) && !SE.IsSame(Ends[1]))
803 MakeCircle (TopoDS::Edge(PE),TopoDS::Vertex(SE),
804 myWorkSpine,myOffset,myMap,RefPlane);
7fd59977 805 }
806 else {
873c119f 807 MakeOffset (TopoDS::Edge(SE),myWorkSpine,myOffset,myMap,RefPlane,
c7806cb6 808 myIsOpenResult, myJoinType, Ends);
873c119f 809 PE = SE;
7fd59977 810 }
811 }
812 }
813
016dfb16 814 //Remove possible hanging arcs on vertices
815 if (myIsOpenResult && myJoinType == GeomAbs_Arc)
816 {
817 if (!myMap.IsEmpty() &&
818 myMap.FindKey(1).ShapeType() == TopAbs_VERTEX)
819 {
820 //myMap.RemoveFirst();
821 TopoDS_Shape LastShape = myMap.FindKey(myMap.Extent());
822 TopTools_ListOfShape LastList;
823 LastList.Append(myMap(myMap.Extent()));
824 myMap.RemoveLast();
825 if (!myMap.IsEmpty())
826 myMap.Substitute(1, LastShape, LastList);
827 }
828 if (!myMap.IsEmpty() &&
829 myMap.FindKey(myMap.Extent()).ShapeType() == TopAbs_VERTEX)
830 myMap.RemoveLast();
831 }
7fd59977 832
873c119f 833#ifdef OCCT_DEBUG
1896126e 834#ifdef DRAW
7fd59977 835 if (AffichEdge) {
0d969553 836 cout << " End Construction of geometric primitives "<<endl;
7fd59977 837 }
838#endif
873c119f 839#endif
7fd59977 840
841
842 //---------------------------------------------------
0d969553 843 // Construction of offset vertices.
7fd59977 844 //---------------------------------------------------
845 BRepFill_DataMapOfOrientedShapeListOfShape Detromp;
846 Handle(MAT_Arc) CurrentArc;
847 Handle(Geom2d_Curve) Bis, PCurve1, PCurve2 ;
848 Handle(Geom_Curve) CBis;
849 Standard_Boolean Reverse;
850 TopoDS_Edge CurrentEdge;
851 TopoDS_Shape S [2];
852 TopoDS_Edge E [2];
853 TopLoc_Location L;
86b3805f 854 Standard_Integer j, k;
7fd59977 855
856 for (Standard_Integer i = 1; i <= Locus.Graph()->NumberOfArcs(); i++) {
857
858 CurrentArc = Locus.Graph()->Arc(i);
859 Bisector_Bisec Bisec = Locus.GeomBis(CurrentArc,Reverse);
873c119f 860#ifdef OCCT_DEBUG
7fd59977 861#ifdef DRAW
873c119f 862
863 if ( AffichGeom) {
864 char name[256];
865 sprintf(name,"BISSEC_%d",NbBISSEC++);
866 DrawTrSurf::Set(name,Bisec.Value());
867 }
868#endif
7fd59977 869#endif
870
0d969553
Y		 871 //-------------------------------------------------------------------
872 // Return elements of the spine corresponding to separate basicElts.
873 //-------------------------------------------------------------------
7fd59977 874 S [0] = Link.GeneratingShape(CurrentArc->FirstElement());
875 S [1] = Link.GeneratingShape(CurrentArc->SecondElement());
876
877 TopTools_SequenceOfShape Vertices;
878 TColgp_SequenceOfPnt Params;
873c119f 879
7fd59977 880 TopTools_DataMapOfShapeSequenceOfShape MapSeqVer;
881 BRepFill_DataMapOfShapeSequenceOfPnt MapSeqPar;
882
883 //-----------------------------------------------------------
0d969553
Y		 884 // Return parallel edges on each face.
885 // If no offset generated => move to the next bissectrice.
7fd59977 886 //--------------------------------------------------------------
86b3805f
J		 887 if (myMap.Contains(S[0]) && myMap.Contains(S[1])) {
888 E [0] = TopoDS::Edge(myMap.FindFromKey(S[0]).First());
889 E [1] = TopoDS::Edge(myMap.FindFromKey(S[1]).First());
7fd59977 890 }
891 else continue;
892
893 //-----------------------------------------------------------
0d969553
Y		 894 // Construction of vertices corresponding to the node of the map.
895 // if they are on the offset.
7fd59977 896 //-----------------------------------------------------------
897 TopoDS_Vertex VS,VE;
898 Handle(MAT_Node) Node1, Node2;
899
900 if (Reverse) {
901 Node1 = CurrentArc->SecondNode();
902 Node2 = CurrentArc->FirstNode();
903 }
904 else {
905 Node1 = CurrentArc->FirstNode();
906 Node2 = CurrentArc->SecondNode();
907 }
873c119f 908
7fd59977 909 Standard_Boolean StartOnEdge = 0, EndOnEdge = 0;
873c119f 910
7fd59977 911 if (!Node1->Infinite()) {
912 gp_Pnt2d aLocalPnt2d = Locus.GeomElt(Node1);
913 StartOnEdge = VertexFromNode(Node1, myOffset, aLocalPnt2d ,MapNodeVertex,VS);
873c119f 914 // StartOnEdge = VertexFromNode(Node1, myOffset, Locus.GeomElt(Node1),
915 // MapNodeVertex,VS);
7fd59977 916 }
917 if (!Node2->Infinite()) {
918 gp_Pnt2d aLocalPnt2d = Locus.GeomElt(Node2) ;
919 EndOnEdge = VertexFromNode(Node2, myOffset, aLocalPnt2d ,MapNodeVertex,VE);
873c119f 920 // EndOnEdge = VertexFromNode(Node2, myOffset, Locus.GeomElt(Node2),
921 // MapNodeVertex,VE);
7fd59977 922 }
923
9eb68d38 924 if (myJoinType == GeomAbs_Intersection)
925 StartOnEdge = EndOnEdge = 0;
926
7fd59977 927 //---------------------------------------------
0d969553 928 // Construction of geometries.
7fd59977 929 //---------------------------------------------
930 BRepFill_TrimEdgeTool Trim (Bisec,
873c119f 931 Locus.GeomElt(CurrentArc->FirstElement()),
932 Locus.GeomElt(CurrentArc->SecondElement()),
933 myOffset);
7fd59977 934
935 //-----------------------------------------------------------
0d969553 936 // Construction of vertices on edges parallel to the spine.
7fd59977 937 //-----------------------------------------------------------
938
9eb68d38 939 Trim.IntersectWith(E [0], E [1], myJoinType, Params);
7fd59977 940
941 for (Standard_Integer s = 1; s <= Params.Length(); s++) {
942 TopoDS_Vertex VC;
943 myBuilder.MakeVertex (VC);
944 gp_Pnt2d P2 = Bisec.Value()->Value(Params.Value(s).X());
945 gp_Pnt PVC(P2.X(),P2.Y(),0.);
946
947 myBuilder.UpdateVertex(VC,PVC,Precision::Confusion());
948 Vertices.Append(VC);
949 }
950 if (StartOnEdge) {
951 Standard_Boolean Start = 1;
952 Trim.AddOrConfuse(Start, E[0], E[1], Params);
953 if (Params.Length() == Vertices.Length())
873c119f 954 Vertices.SetValue(1,VS);
7fd59977 955
956 else
873c119f 957 // the point was not found by IntersectWith
958 Vertices.Prepend(VS);
7fd59977 959 }
960 if (EndOnEdge) {
961 Standard_Boolean Start = 0;
962 Trim.AddOrConfuse(Start, E[0], E[1], Params);
963 if (Params.Length() == Vertices.Length())
873c119f 964 Vertices.SetValue(Params.Length(),VE);
7fd59977 965
966 else
873c119f 967 // the point was not found by IntersectWith
968 Vertices.Append(VE);
7fd59977 969 }
970
971 //------------------------------------------------------------
0d969553
Y		 972 // Update Detromp.
973 // Detromp allows to remove vertices on the offset
974 // corresponding to tangency zones
975 // Detromp ranks the vertices that limit
976 // the parts of the bissectrices located between the spine and the
977 // offset.
7fd59977 978 //------------------------------------------------------------
979 if (!Detromp.IsBound(S[0])) Detromp.Bind(S[0],EmptyList);
980 if (!Detromp.IsBound(S[1])) Detromp.Bind(S[1],EmptyList);
981
982
c19dd45e 983 UpdateDetromp (Detromp, S[0], S[1], Vertices, Params,
873c119f 984 Bisec, StartOnEdge, EndOnEdge, Trim);
7fd59977 985 //----------------------------------------------
0d969553
Y		 986 // Storage of vertices on parallel edges.
987 // fill MapBis and MapVerPar.
7fd59977 988 //----------------------------------------------
989 if (!Vertices.IsEmpty()) {
990 for (k = 0; k <= 1; k++) {
873c119f 991 if (!MapBis.IsBound(E[k])) {
992 MapBis .Bind(E[k],EmptySeq);
993 MapVerPar.Bind(E[k],EmptySeqOfReal);
994 }
995 for (Standard_Integer ii = 1; ii <= Vertices.Length(); ii++) {
996 MapBis (E[k]).Append(Vertices.Value(ii));
997 if (k == 0) MapVerPar (E[k]).Append(Params.Value(ii).Y());
998 else MapVerPar (E[k]).Append(Params.Value(ii).Z());
999 }
7fd59977 1000 }
1001 }
1002 else {
1003 //------------------------------------------------------------
0d969553
Y		 1004 // FOR COMPLETE CIRCLES. the parallel line can be contained
1005 // in the zone without intersection with the border
1006 // no intersection
1007 // if myoffset is < distance of nodes the parallel can be valid.
7fd59977 1008 //-------------------------------------------------------------
1009 for (k = 0; k <= 1; k++) {
873c119f 1010 if (!MapBis.IsBound(E[k])) {
1011 if (Node1->Distance() > myOffset && Node2->Distance() > myOffset) {
1012 MapBis .Bind(E[k],EmptySeq);
1013 MapVerPar.Bind(E[k],EmptySeqOfReal);
1014 }
1015 }
7fd59977 1016 }
1017 }
1018 }
873c119f 1019
1020#ifdef OCCT_DEBUG
1896126e 1021#ifdef DRAW
7fd59977 1022 if (AffichEdge) {
0d969553 1023 cout << " End Construction of vertices on offsets"<<endl;
7fd59977 1024 }
873c119f 1025#endif
7fd59977 1026#endif
1027
1028 //----------------------------------
0d969553 1029 // Construction of parallel edges.
7fd59977 1030 //----------------------------------
1031 TopTools_IndexedDataMapOfShapeShape MapVV;
1032
1033 TopoDS_Shape CurrentSpine;
1034
86b3805f 1035 //BRepFill_DataMapIteratorOfDataMapOfOrientedShapeListOfShape ite1;
7fd59977 1036
86b3805f
J		 1037 for (j = 1; j <= myMap.Extent(); j++) {
1038 CurrentSpine = myMap.FindKey(j);
1039 CurrentEdge = TopoDS::Edge(myMap(j).First());
7fd59977 1040
86b3805f 1041 myMap(j).Clear();
7fd59977 1042 if (MapBis.IsBound(CurrentEdge)) {
1043 TopTools_SequenceOfShape S;
1044 if (!MapBis(CurrentEdge).IsEmpty()) {
6a442250 1045 Standard_Integer IndOfE = 0;
1046 if (myIsOpenResult)
1047 {
1048 if (j == 1)
1049 IndOfE = 1;
1050 else if (j == myMap.Extent())
1051 IndOfE = -1;
1052 }
873c119f 1053 TrimEdge (CurrentEdge,
1054 CurrentSpine,
1055 mySpine,
1056 Detromp (CurrentSpine),
1057 MapBis (CurrentEdge) ,
1058 MapVerPar(CurrentEdge) ,
1059 S, MapVV, IndOfE);
1060 for ( k = 1; k <= S.Length(); k++) {
1061 myMap(j).Append(S.Value(k));
1062 }
7fd59977 1063 }
1064 else {
873c119f 1065 //-----------------
1066 // Complete circles
1067 //-----------------
1068 myMap(j).Append(CurrentEdge);
7fd59977 1069 }
1070 }
1071 }
873c119f 1072
7fd59977 1073 Standard_Integer ind;
1074 for (ind = 1; ind <= MapVV.Extent(); ind++)
873c119f 1075 {
1076 TopoDS_Vertex OldV = TopoDS::Vertex(MapVV.FindKey(ind));
1077 TopoDS_Vertex NewV = TopoDS::Vertex(MapVV(ind));
1078 gp_Pnt P1 = BRep_Tool::Pnt(OldV);
1079 gp_Pnt P2 = BRep_Tool::Pnt(NewV);
1080 myBuilder.UpdateVertex(NewV, P1.Distance(P2));
1081 TopTools_ListOfShape LV;
1082 LV.Append( NewV.Oriented(TopAbs_FORWARD) );
1083 BRepTools_Substitution aSubst;
1084 aSubst.Substitute( OldV, LV );
1085 for (j = 1; j <= myMap.Extent(); j++)
7fd59977 1086 {
873c119f 1087 TopTools_ListIteratorOfListOfShape itl(myMap(j));
1088 for (; itl.More(); itl.Next())
1089 {
1090 aSubst.Build(itl.Value());
1091 if (aSubst.IsCopied(itl.Value()))
1092 {
1093 const TopTools_ListOfShape& listSh = aSubst.Copy(itl.Value());
1094 TopAbs_Orientation SaveOr = itl.Value().Orientation();
1095 itl.Value() = listSh.First();
1096 itl.Value().Orientation(SaveOr);
1097 }
1098 }
7fd59977 1099 }
873c119f 1100 }
7fd59977 1101
1102 //----------------------------------
0d969553 1103 // Construction of offset wires.
7fd59977 1104 //----------------------------------
1105 MakeWires ();
1106
0d969553 1107 // Update vertices ( Constructed in the plane Z = 0) !!!
7fd59977 1108 TopTools_MapOfShape MapVertex;
1109 for ( TopExp_Explorer exp(myShape,TopAbs_VERTEX); exp.More(); exp.Next()) {
1110 TopoDS_Vertex V = TopoDS::Vertex(exp.Current());
1111 if ( MapVertex.Add(V)) {
1112 gp_Pnt P = BRep_Tool::Pnt(V);
1113 P = RefPlane->Value(P.X(),P.Y());
1114 myBuilder.UpdateVertex(V,P, Precision::Confusion());
1115 }
1116 }
1117
0d969553 1118 // Construction of curves 3d.
7fd59977 1119 BRepLib::BuildCurves3d(myShape);
1120 MapVertex.Clear();
1121 TopExp_Explorer Explo( myShape, TopAbs_EDGE );
1122 for (; Explo.More(); Explo.Next())
873c119f 1123 {
1124 TopoDS_Edge E = TopoDS::Edge( Explo.Current() );
1125 TopoDS_Vertex V1, V2;
1126 TopExp::Vertices( E, V1, V2 );
1127 Handle(BRep_TVertex)& TV1 = *((Handle(BRep_TVertex)*) &(V1).TShape());
1128 Handle(BRep_TVertex)& TV2 = *((Handle(BRep_TVertex)*) &(V2).TShape());
1129
1130 TopLoc_Location loc;
1131 Standard_Real f, l;
1132 Handle( Geom_Curve ) theCurve = BRep_Tool::Curve( E, loc, f, l );
1133 theCurve = Handle( Geom_Curve )::DownCast( theCurve->Copy() );
1134 theCurve->Transform( loc.Transformation() );
1135 gp_Pnt f3d = theCurve->Value( f );
1136 gp_Pnt l3d = theCurve->Value( l );
1137
1138 Standard_Real dist1, dist2;
1139 dist1 = f3d.Distance( TV1->Pnt() );
1140 dist2 = l3d.Distance( TV2->Pnt() );
1141 if (! MapVertex.Contains( V1 ))
7fd59977 1142 {
7fd59977 1143
873c119f 1144 TV1->Pnt( f3d );
1145 MapVertex.Add( V1 );
7fd59977 1146 }
873c119f 1147 else
1148 TV1->UpdateTolerance( 1.5*dist1 );
1149 if (! MapVertex.Contains( V2 ))
1150 {
1151 TV2->Pnt( l3d );
1152 MapVertex.Add( V2 );
1153 }
1154 else
1155 TV2->UpdateTolerance( 1.5*dist2 );
1156 }
7fd59977 1157
1867dc32 1158 if (!myIsOpenResult)
1159 FixHoles();
7fd59977 1160
1161 myIsDone = Standard_True;
1162}
1163
1164
1165//=======================================================================
1166//function : Generated
1167//purpose :
1168//=======================================================================
1169
86b3805f 1170BRepFill_IndexedDataMapOfOrientedShapeListOfShape&
873c119f 1171 BRepFill_OffsetWire::Generated()
7fd59977 1172{
1173 return myMap;
1174}
1175
1176
1177//=======================================================================
1178//function : PrepareSpine
1179//purpose :
1180//=======================================================================
1181
1182void BRepFill_OffsetWire::PrepareSpine()
1183{
1184 BRep_Builder B;
1185 TopTools_ListOfShape Cuts;
1186 TopTools_ListIteratorOfListOfShape IteCuts;
1187 TopoDS_Vertex V1,V2;
1188
1189 myWorkSpine.Nullify();
1190 myMapSpine.Clear();
1191
1192 TopLoc_Location L;
1193 const Handle(Geom_Surface)& S = BRep_Tool::Surface (mySpine,L);
1194 Standard_Real TolF = BRep_Tool::Tolerance(mySpine);
1195 B.MakeFace(myWorkSpine,S,L,TolF);
1196
1197 for (TopoDS_Iterator IteF(mySpine) ; IteF.More(); IteF.Next()) {
1198
1199 TopoDS_Wire NW;
1200 B.MakeWire (NW);
1201
873c119f 1202 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:55 2000 Begin
7fd59977 1203 Standard_Integer ForcedCut = 0;
1204 Standard_Integer nbResEdges = -1;
1205 TopTools_IndexedMapOfShape EdgeMap;
1206
1207 TopExp::MapShapes(IteF.Value(), TopAbs_EDGE, EdgeMap);
1208 Standard_Integer nbEdges = EdgeMap.Extent();
1209
6a442250 1210 if (nbEdges == 1 && !myIsOpenResult) //in case of open wire there's no need to do it
7fd59977 1211 ForcedCut = 2;
873c119f 1212 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:48 2000 End
7fd59977 1213
1214 for (TopoDS_Iterator IteW(IteF.Value()); IteW.More(); IteW.Next()) {
1215
1216 const TopoDS_Edge& E = TopoDS::Edge(IteW.Value());
1217 EdgeVertices(E,V1,V2);
1218 myMapSpine.Bind(V1,V1);
1219 myMapSpine.Bind(V2,V2);
1220 Cuts.Clear();
1221
0d969553 1222 // Cut
7fd59977 1223 TopoDS_Shape aLocalShape = E.Oriented(TopAbs_FORWARD);
873c119f 1224 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:29 2000 Begin
7fd59977 1225 if (nbEdges == 2 && nbResEdges == 0)
873c119f 1226 ForcedCut = 1;
1227 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:33 2000 End
7fd59977 1228 nbResEdges = CutEdge (TopoDS::Edge(aLocalShape), mySpine, ForcedCut, Cuts);
1229
1230 if (Cuts.IsEmpty()) {
873c119f 1231 B.Add(NW,E);
1232 myMapSpine.Bind(E,E);
7fd59977 1233 }
1234 else {
873c119f 1235 for (IteCuts.Initialize(Cuts); IteCuts.More(); IteCuts.Next()) {
1236 TopoDS_Edge NE = TopoDS::Edge(IteCuts.Value());
1237 NE.Orientation(E.Orientation());
1238 B.Add(NW,NE);
1239 myMapSpine.Bind(NE,E);
1240 EdgeVertices(NE,V1,V2);
1241 if (!myMapSpine.IsBound(V1)) myMapSpine.Bind(V1,E);
1242 if (!myMapSpine.IsBound(V2)) myMapSpine.Bind(V2,E);
1243 }
7fd59977 1244 }
1245 }
873c119f 1246 // Modified by Sergey KHROMOV - Thu Mar 7 09:17:41 2002 Begin
7fd59977 1247 TopoDS_Vertex aV1;
1248 TopoDS_Vertex aV2;
1249
1250 TopExp::Vertices(NW, aV1, aV2);
1251
1252 NW.Closed(aV1.IsSame(aV2));
873c119f 1253
1254 // Modified by Sergey KHROMOV - Thu Mar 7 09:17:43 2002 End
7fd59977 1255 B.Add(myWorkSpine, NW);
1256 }
1257
873c119f 1258#ifdef OCCT_DEBUG
7fd59977 1259#ifdef DRAW
1260 if ( AffichEdge) {
1896126e 1261 DBRep::Set("WS",myWorkSpine);
873c119f 1262 DBRep::Set("MS",mySpine);
1263 BRepTools::Write(myWorkSpine, "WS");
1264 BRepTools::Write(mySpine, "MS");
7fd59977 1265 }
1266#endif
873c119f 1267#endif
7fd59977 1268
1269}
1270
c19dd45e 1271//=======================================================================
1272//function : UpdateDetromp
1273//purpose : For each interval on bissectrice defined by parameters
1274// test if the medium point is at a distance > offset
1275// in this case vertices corresponding to the extremities of the interval
1276// are ranked in the proofing.
1277// => If the same vertex appears in the proofing, the
1278// border of the zone of proximity is tangent to the offset .
1279//=======================================================================
1280
1281void BRepFill_OffsetWire::UpdateDetromp (BRepFill_DataMapOfOrientedShapeListOfShape& Detromp,
1282 const TopoDS_Shape& Shape1,
1283 const TopoDS_Shape& Shape2,
1284 const TopTools_SequenceOfShape& Vertices,
1285 const TColgp_SequenceOfPnt& Params,
1286 const Bisector_Bisec& Bisec,
1287 const Standard_Boolean SOnE,
1288 const Standard_Boolean EOnE,
1289 const BRepFill_TrimEdgeTool& Trim) const
1290{
c19dd45e 1291 Standard_Integer ii = 1;
1292 Standard_Real U1,U2;
1293 TopoDS_Vertex V1,V2;
1294
5b111128 1295 Handle(Geom2d_Curve) Bis (Bisec.Value());
c19dd45e 1296
1297 U1 = Bis->FirstParameter();
1298
1299 if (SOnE) {
1300 // the first point of the bissectrice is on the offset
1301 V1 = TopoDS::Vertex(Vertices.Value(ii));
1302 ii++;
1303 }
1304
1305 while (ii <= Vertices.Length()) {
1306 U2 = Params.Value(ii).X();
1307 V2 = TopoDS::Vertex(Vertices.Value(ii));
1308
a791eb69 1309 gp_Pnt2d P = Bis->Value((U2 + U1)*0.5);
1310 Standard_Boolean IsP_inside = Standard_True;
873c119f 1311 if ((myJoinType != GeomAbs_Intersection) || EOnE)
a791eb69 1312 IsP_inside = Trim.IsInside(P);
1313 if (!IsP_inside) {
c19dd45e 1314 if (!V1.IsNull()) {
1315 Detromp(Shape1).Append(V1);
1316 Detromp(Shape2).Append(V1);
1317 }
1318 Detromp(Shape1).Append(V2);
1319 Detromp(Shape2).Append(V2);
1320 }
1321 U1 = U2;
1322 V1 = V2;
1323 ii ++;
1324 }
1325
1326 // test medium point between the last parameter and the end of the bissectrice.
1327 U2 = Bis->LastParameter();
1328 if (!EOnE) {
1329 if (!Precision::IsInfinite(U2)) {
1330 gp_Pnt2d P = Bis->Value((U2 + U1)*0.5);
a791eb69 1331 Standard_Boolean IsP_inside = Standard_False;
1332 if (myJoinType == GeomAbs_Arc)
1333 IsP_inside = Trim.IsInside(P);
1334 if (!IsP_inside) {
873c119f 1335 if (!V1.IsNull()) {
1336 Detromp(Shape1).Append(V1);
1337 Detromp(Shape2).Append(V1);
1338 }
c19dd45e 1339 }
1340 }
1341 else {
1342 if (!V1.IsNull()) {
873c119f 1343 Detromp(Shape1).Append(V1);
1344 Detromp(Shape2).Append(V1);
c19dd45e 1345 }
1346 }
1347 }
873c119f 1348 //else if(myJoinType != GeomAbs_Arc)
1349 //{
1350 // if (!V1.IsNull()) {
1351 // Detromp(Shape1).Append(V1);
1352 // Detromp(Shape2).Append(V1);
1353 // }
1354 //}
c19dd45e 1355}
1356
7fd59977 1357//=======================================================================
1358//function : MakeWires
1359//purpose :
1360//=======================================================================
1361
1362void BRepFill_OffsetWire::MakeWires()
1363{
1364 //--------------------------------------------------------
0d969553 1365 // creation of a single list of created parallel edges.
7fd59977 1366 //--------------------------------------------------------
1367 TopTools_SequenceOfShape TheEdges;
1368 TopTools_ListOfShape TheWires;
1369 TopTools_ListIteratorOfListOfShape itl;
86b3805f
J		 1370 //BRepFill_DataMapIteratorOfDataMapOfOrientedShapeListOfShape ite;
1371 TopTools_IndexedDataMapOfShapeListOfShape MVE;
1372 //TopTools_DataMapIteratorOfDataMapOfShapeListOfShape MVEit;
7fd59977 1373 TopoDS_Vertex V1,V2,VF,CV;
86b3805f 1374 Standard_Integer i;
7fd59977 1375
86b3805f
J		 1376 for (i = 1; i <= myMap.Extent(); i++) {
1377 for (itl.Initialize(myMap(i)); itl.More(); itl.Next()) {
7fd59977 1378 const TopoDS_Edge& E = TopoDS::Edge(itl.Value());
1379 TopExp::Vertices (E,V1,V2);
1380 if (V1.IsSame(V2) && IsSmallClosedEdge(E, V1))
873c119f 1381 continue; //remove small closed edges
86b3805f 1382 if (!MVE.Contains(V1)) {
873c119f 1383 TopTools_ListOfShape empty;
1384 MVE.Add(V1,empty);
7fd59977 1385 }
86b3805f
J		 1386 MVE.ChangeFromKey(V1).Append(E);
1387 if (!MVE.Contains(V2)) {
873c119f 1388 TopTools_ListOfShape empty;
1389 MVE.Add(V2,empty);
7fd59977 1390 }
86b3805f 1391 MVE.ChangeFromKey(V2).Append(E);
7fd59977 1392 }
1393 }
1394
1395 //--------------------------------------
0d969553 1396 // Creation of parallel wires.
7fd59977 1397 //--------------------------------------
1398 BRep_Builder B;
1399
873c119f 1400
1401 // Standard_Integer NbEdges;
1402 // Standard_Boolean NewWire = Standard_True;
1403 // Standard_Boolean AddEdge = Standard_False;
7fd59977 1404
1405 TopoDS_Wire NW;
1406 Standard_Boolean End;
1407 TopoDS_Edge CE;
1408
1409 while (!MVE.IsEmpty()) {
1410 B.MakeWire(NW);
1411
86b3805f
J		 1412 //MVEit.Initialize(MVE);
1413 for (i = 1; i <= MVE.Extent(); i++)
1414 if(MVE(i).Extent() == 1)
1415 break;
7fd59977 1416
86b3805f
J		 1417 //if(!MVEit.More()) MVEit.Initialize(MVE);
1418 if (i > MVE.Extent())
1419 i = 1;
7fd59977 1420
86b3805f
J		 1421 CV = VF = TopoDS::Vertex(MVE.FindKey(i));
1422 CE = TopoDS::Edge(MVE(i).First());
7fd59977 1423 End = Standard_False;
1867dc32 1424 MVE.ChangeFromKey(CV).RemoveFirst();
1425
1426 if (myIsOpenResult && MVE.FindFromKey(CV).IsEmpty())
1427 {
1428 //MVE.UnBind(CV);
1429 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1430 TopTools_ListOfShape LastList;
1431 LastList.Append(MVE(MVE.Extent()));
1432 MVE.RemoveLast();
1433 if (MVE.FindIndex(CV) != 0)
1434 MVE.Substitute(MVE.FindIndex(CV), LastShape, LastList);
1435 }
1436
7fd59977 1437
873c119f 1438 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:59 2002 Begin
7fd59977 1439 Standard_Boolean isClosed = Standard_False;
873c119f 1440
1441 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:00 2002 End
7fd59977 1442
1443 while(!End) {
1444 //-------------------------------
0d969553 1445 // Construction of a wire.
7fd59977 1446 //-------------------------------
1447 TopExp::Vertices(CE,V1,V2);
1448 if (!CV.IsSame(V1)) CV = V1; else CV = V2;
1449
1450 B.Add (NW,CE);
1451
86b3805f 1452 if (VF.IsSame(CV) || !MVE.Contains(CV)) {
873c119f 1453 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:14 2002 Begin
1454 isClosed = VF.IsSame(CV);
1455 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:15 2002 End
1456 End = Standard_True;
1457 //MVE.UnBind(VF);
86b3805f
J		 1458 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1459 TopTools_ListOfShape LastList;
1460 LastList.Append(MVE(MVE.Extent()));
1461 MVE.RemoveLast();
1462 if (MVE.FindIndex(VF) != 0)
1463 MVE.Substitute(MVE.FindIndex(VF), LastShape, LastList);
7fd59977 1464 }
1465
1466 if (!End) {
873c119f 1467 if (MVE.FindFromKey(CV).Extent() > 2) {
1468 //cout <<"vertex on more that 2 edges in a face."<<endl;
1469 }
1470 for ( itl.Initialize(MVE.FindFromKey(CV)); itl.More(); itl.Next()) {
1471 if (itl.Value().IsSame(CE)) {
1472 MVE.ChangeFromKey(CV).Remove(itl);
1473 break;
1474 }
1475 }
1476 if (!MVE.FindFromKey(CV).IsEmpty()) {
1477 CE = TopoDS::Edge(MVE.FindFromKey(CV).First());
1478 MVE.ChangeFromKey(CV).RemoveFirst();
1479 }
1867dc32 1480 else if (myIsOpenResult)//CV was a vertex with one edge
1481 End = Standard_True;
1482
873c119f 1483 if (MVE.FindFromKey(CV).IsEmpty())
86b3805f
J		 1484 {
1485 //MVE.UnBind(CV);
1486 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1487 TopTools_ListOfShape LastList;
1488 LastList.Append(MVE(MVE.Extent()));
1489 MVE.RemoveLast();
1490 if (MVE.FindIndex(CV) != 0)
1491 MVE.Substitute(MVE.FindIndex(CV), LastShape, LastList);
1492 }
7fd59977 1493 }
1494 }
873c119f 1495 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:31 2002 Begin
1496 // NW.Closed(Standard_True);
7fd59977 1497 NW.Closed(isClosed);
873c119f 1498 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:37 2002 End
7fd59977 1499 TheWires.Append(NW);
1500 }
1501
0d969553
Y		 1502 // update myShape :
1503 // -- if only one wire : myShape is a Wire
1504 // -- if several wires : myShape is a Compound.
7fd59977 1505 if ( TheWires.Extent() == 1) {
1506 myShape = TheWires.First();
1507 }
1508 else {
1509 TopoDS_Compound R;
1510 B.MakeCompound(R);
1511 TopTools_ListIteratorOfListOfShape it(TheWires);
1512 for ( ; it.More(); it.Next()) {
1513 B.Add(R, it.Value());
1514 }
1515 myShape = R;
1516 }
1517
1518}
1519
1520//=======================================================================
1521//function : FixHoles
1522//purpose :
1523//=======================================================================
1524
1525void BRepFill_OffsetWire::FixHoles()
1526{
1527 TopTools_SequenceOfShape ClosedWires, UnclosedWires, IsolatedWires;
1528
1529 Standard_Real MaxTol = 0.;
1530 Standard_Integer i;
1531 BRep_Builder BB;
1532
1533 TopExp_Explorer Explo( mySpine, TopAbs_VERTEX );
1534 for (; Explo.More(); Explo.Next())
91bb31f3 1535 {
1536 const TopoDS_Vertex& aVertex = TopoDS::Vertex( Explo.Current() );
1537 Standard_Real Tol = BRep_Tool::Tolerance(aVertex);
1538 if (Tol > MaxTol)
1539 MaxTol = Tol;
1540 }
7fd59977 1541 MaxTol *= 100.;
1542
1543 Explo.Init( myShape, TopAbs_WIRE );
1544 for (; Explo.More(); Explo.Next())
91bb31f3 1545 {
1546 TopoDS_Shape aWire = Explo.Current();
1547 // Remove duplicated edges
1548 TopTools_DataMapOfShapeListOfShape EEmap;
1549 TopoDS_Iterator it( aWire );
1550 for (; it.More(); it.Next())
7fd59977 1551 {
91bb31f3 1552 const TopoDS_Shape& anEdge = it.Value();
1553 if (! EEmap.IsBound( anEdge ))
1554 {
1555 TopTools_ListOfShape LE;
1556 EEmap.Bind( anEdge, LE );
1557 }
7fd59977 1558 else
91bb31f3 1559 EEmap(anEdge).Append( anEdge );
7fd59977 1560 }
91bb31f3 1561 aWire.Free( Standard_True );
1562 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape mapit( EEmap );
1563 for (; mapit.More(); mapit.Next())
1564 {
1565 const TopTools_ListOfShape& LE = mapit.Value();
1566 TopTools_ListIteratorOfListOfShape itl( LE );
1567 for (; itl.More(); itl.Next())
1568 BB.Remove( aWire, itl.Value() );
1569 }
1570 // Sorting
1571 if (aWire.Closed())
1572 ClosedWires.Append( aWire );
1573 else
1574 UnclosedWires.Append( aWire );
1575 }
1576
7fd59977 1577 while (!UnclosedWires.IsEmpty())
91bb31f3 1578 {
1579 TopoDS_Wire& Base = TopoDS::Wire( UnclosedWires(1) );
1580 TopoDS_Vertex Vf, Vl;
1581 TopExp::Vertices( Base, Vf, Vl );
1582 if(Vf.IsNull() || Vl.IsNull())
873c119f 1583 {
91bb31f3 1584 Standard_Failure::Raise("BRepFill_OffsetWire::FixHoles(): Wrong wire.");
873c119f 1585#ifdef OCCT_DEBUG
1586 BRepTools::Write(Base, "Base");
1587#endif
1588 }
91bb31f3 1589 gp_Pnt Pf, Pl;
1590 Pf = BRep_Tool::Pnt(Vf);
1591 Pl = BRep_Tool::Pnt(Vl);
1592 Standard_Real DistF = RealLast(), DistL = RealLast();
1593 Standard_Integer IndexF = 1, IndexL = 1;
1594 Standard_Boolean IsFirstF = Standard_False, IsFirstL = Standard_False;
1595 for (Standard_Integer i = 2; i <= UnclosedWires.Length(); i++)
7fd59977 1596 {
91bb31f3 1597 TopoDS_Wire aWire = TopoDS::Wire( UnclosedWires(i) );
1598 TopoDS_Vertex V1, V2;
1599 TopExp::Vertices( aWire, V1, V2 );
1600
1601 if(V1.IsNull() || V2.IsNull())
873c119f 1602 {
ab87e6fc 1603 Standard_Failure::Raise("BRepFill_OffsetWire::FixHoles(): Wrong wire.");
873c119f 1604#ifdef OCCT_DEBUG
1605 BRepTools::Write(Base, "Base");
1606 char name[128];
1607 sprintf(name,"Wire_%d",i);
1608 BRepTools::Write(aWire, name);
1609#endif
1610 }
91bb31f3 1611
1612 gp_Pnt P1, P2;
1613 P1 = BRep_Tool::Pnt(V1);
1614 P2 = BRep_Tool::Pnt(V2);
1615 Standard_Real dist = Pf.Distance( P1 );
1616 if (dist < DistF)
1617 {
1618 DistF = dist;
1619 IndexF = i;
1620 IsFirstF = Standard_True;
1621 }
1622 dist = Pf.Distance( P2 );
1623 if (dist < DistF)
1624 {
1625 DistF = dist;
1626 IndexF = i;
1627 IsFirstF = Standard_False;
1628 }
1629 dist = Pl.Distance( P1 );
1630 if (dist < DistL)
1631 {
1632 DistL = dist;
1633 IndexL = i;
1634 IsFirstL = Standard_True;
1635 }
1636 dist = Pl.Distance( P2 );
1637 if (dist < DistL)
1638 {
1639 DistL = dist;
1640 IndexL = i;
1641 IsFirstL = Standard_False;
1642 }
1643 }
1644 TopoDS_Wire theWire;
1645 TopoDS_Edge theEdge;
1646 TopoDS_Vertex theVertex;
1647 Standard_Real CommonTol;
1648 Standard_Boolean TryToClose = Standard_True;
1649 if (DistF <= MaxTol && DistL <= MaxTol && IndexF == IndexL && IsFirstF == IsFirstL)
1650 {
1651 if (DistF < DistL)
1652 {
1653 DistL = RealLast();
1654 IndexL++;
1655 }
1656 else
1657 {
1658 DistF = RealLast();
1659 IndexF++;
1660 }
1661 TryToClose = Standard_False;
1662 }
1663 if (DistF <= MaxTol)
1664 {
1665 theWire = TopoDS::Wire( UnclosedWires(IndexF) );
1666 TopoDS_Vertex V1, V2;
1667 TopExp::Vertices( theWire, V1, V2 );
1668 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1669 TopExp::MapShapesAndAncestors( theWire, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1670 theEdge = (IsFirstF)? TopoDS::Edge(VEmap.FindFromKey( V1 ).First()) :
1671 TopoDS::Edge(VEmap.FindFromKey( V2 ).First());
1672 TopoDS_Iterator it( theWire );
1673 for (; it.More(); it.Next())
1674 {
1675 TopoDS_Edge anEdge = TopoDS::Edge( it.Value() );
1676 if (IsFirstF) anEdge.Reverse();
1677 if (!anEdge.IsSame( theEdge ))
1678 BB.Add( Base, anEdge );
1679 }
1680 theVertex = (IsFirstF)? V1 : V2;
1681 CommonTol = Max( BRep_Tool::Tolerance(Vf), BRep_Tool::Tolerance(theVertex) );
1682 if (DistF <= CommonTol)
1683 {
1684 theEdge.Free( Standard_True );
1685 Vf.Orientation( theVertex.Orientation() );
1686 BB.Remove( theEdge, theVertex );
1687 BB.Add( theEdge, Vf );
1688 BB.UpdateVertex( Vf, CommonTol );
1689 if (IsFirstF) theEdge.Reverse();
1690 BB.Add( Base, theEdge );
1691 }
1692 else
1693 {
1694 if (IsFirstF) theEdge.Reverse();
1695 BB.Add( Base, theEdge );
1696 // Creating new edge from theVertex to Vf
1697 TopoDS_Edge NewEdge = BRepLib_MakeEdge( theVertex, Vf );
1698 BB.Add( Base, NewEdge );
1699 }
1700 }
1701 if (DistL <= MaxTol && IndexL != IndexF)
1702 {
1703 theWire = TopoDS::Wire( UnclosedWires(IndexL) );
1704 TopoDS_Vertex V1, V2;
1705 TopExp::Vertices( theWire, V1, V2 );
1706 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1707 TopExp::MapShapesAndAncestors( theWire, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1708 theEdge = (IsFirstL)? TopoDS::Edge(VEmap.FindFromKey( V1 ).First()) :
1709 TopoDS::Edge(VEmap.FindFromKey( V2 ).First());
1710 TopoDS_Iterator it( theWire );
1711 for (; it.More(); it.Next())
1712 {
1713 TopoDS_Edge anEdge = TopoDS::Edge( it.Value() );
1714 if (!IsFirstL) anEdge.Reverse();
1715 if (!anEdge.IsSame( theEdge ))
1716 BB.Add( Base, anEdge );
1717 }
1718 theVertex = (IsFirstL)? V1 : V2;
1719 CommonTol = Max( BRep_Tool::Tolerance(Vl), BRep_Tool::Tolerance(theVertex) );
1720 if (DistL <= CommonTol)
1721 {
1722 theEdge.Free( Standard_True );
1723 Vl.Orientation( theVertex.Orientation() );
1724 BB.Remove( theEdge, theVertex );
1725 BB.Add( theEdge, Vl );
1726 BB.UpdateVertex( Vl, CommonTol );
1727 if (!IsFirstL) theEdge.Reverse();
1728 BB.Add( Base, theEdge );
1729 }
1730 else
1731 {
1732 if (!IsFirstL) theEdge.Reverse();
1733 BB.Add( Base, theEdge );
1734 // Creating new edge from Vl to theVertex
1735 TopoDS_Edge NewEdge = BRepLib_MakeEdge( Vl, theVertex );
1736 BB.Add( Base, NewEdge );
1737 }
1738 }
1739 // Check if it is possible to close resulting wire
1740 if (TryToClose)
1741 {
1742 TopExp::Vertices( Base, Vf, Vl );
1743 CommonTol = Max( BRep_Tool::Tolerance(Vf), BRep_Tool::Tolerance(Vl) );
1744 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1745 TopExp::MapShapesAndAncestors( Base, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1746 TopoDS_Edge Efirst, Elast;
1747 Efirst = TopoDS::Edge(VEmap.FindFromKey( Vf ).First());
1748 Elast = TopoDS::Edge(VEmap.FindFromKey( Vl ).First());
7fd59977 1749 Pf = BRep_Tool::Pnt(Vf);
1750 Pl = BRep_Tool::Pnt(Vl);
91bb31f3 1751 Standard_Real Dist = Pf.Distance(Pl);
1752 if (Dist <= CommonTol)
1753 {
1754 Elast.Free( Standard_True );
1755 Vf.Orientation( Vl.Orientation() );
1756 BB.Remove( Elast, Vl );
1757 BB.Add( Elast, Vf );
1758 BB.UpdateVertex( Vf, CommonTol );
1759 Base.Closed( Standard_True );
1760 }
1761 else if (Dist <= MaxTol)
1762 {
1763 // Creating new edge from Vl to Vf
1764 TopoDS_Edge NewEdge = BRepLib_MakeEdge( Vf, Vl );
1765 BB.Add( Base, NewEdge );
1766 Base.Closed( Standard_True );
1767 }
7fd59977 1768 }
91bb31f3 1769 // Updating sequences ClosedWires and UnclosedWires
1770 if (DistF <= MaxTol)
1771 UnclosedWires.Remove( IndexF );
1772 if (DistL <= MaxTol && IndexL != IndexF)
7fd59977 1773 {
91bb31f3 1774 if (DistF <= MaxTol && IndexL > IndexF)
1775 IndexL--;
1776 UnclosedWires.Remove( IndexL );
7fd59977 1777 }
91bb31f3 1778 if (Base.Closed())
7fd59977 1779 {
91bb31f3 1780 ClosedWires.Append( Base );
1781 UnclosedWires.Remove( 1 );
7fd59977 1782 }
91bb31f3 1783 else if (DistF > MaxTol && DistL > MaxTol)
1784 {
1785 IsolatedWires.Append( Base );
1786 UnclosedWires.Remove( 1 );
1787 }
1788 }
1789
1790 // Updating myShape
1791 if (ClosedWires.Length() + IsolatedWires.Length() == 1)
1792 {
1793 if (!ClosedWires.IsEmpty())
1794 myShape = ClosedWires.First();
1795 else
1796 myShape = IsolatedWires.First();
1797 }
1798 else
1799 {
1800 TopoDS_Compound R;
1801 BB.MakeCompound( R );
1802 for (i = 1; i <= ClosedWires.Length(); i++)
1803 BB.Add( R, ClosedWires(i) );
1804 for (i = 1; i <= IsolatedWires.Length(); i++)
1805 BB.Add( R, IsolatedWires(i) );
1806 myShape = R;
1807 }
7fd59977 1808}
1809
1810//=======================================================================
1811//function : CutEdge
0d969553
Y		 1812//purpose : Cut edge at the extrema of curvatures and points of inflexion.
1813// So, closed circles are cut in two.
1814// If <Cuts> is empty, the edge is not modified.
1815// The first and the last vertex of the initial edge
1816// belong to the first and the last parts respectively.
7fd59977 1817//=======================================================================
1818Standard_Integer CutEdge (const TopoDS_Edge& E,
873c119f 1819 const TopoDS_Face& F,
1820 Standard_Integer ForceCut,
1821 TopTools_ListOfShape& Cuts)
7fd59977 1822{
1823 Cuts.Clear();
1824 MAT2d_CutCurve Cuter;
1825 TColGeom2d_SequenceOfCurve theCurves;
1826 Standard_Real f,l;
1827 Handle(Geom2d_Curve) C2d;
1828 Handle(Geom2d_TrimmedCurve) CT2d;
873c119f 1829 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:25 2002 Begin
7fd59977 1830 Standard_Real aTol = BRep_Tool::Tolerance(E);
1831 Handle(Geom_Curve) aC;
873c119f 1832 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:25 2002 End
7fd59977 1833
1834 TopoDS_Vertex V1,V2,VF,VL;
1835 TopExp::Vertices (E,V1,V2);
1836 BRep_Builder B;
1837
1838 C2d = BRep_Tool::CurveOnSurface (E,F,f,l);
873c119f 1839 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:54 2002 Begin
7fd59977 1840 aC = BRep_Tool::Curve(E,f,l);
873c119f 1841 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:54 2002 End
7fd59977 1842 CT2d = new Geom2d_TrimmedCurve(C2d,f,l);
1843 //if (E.Orientation() == TopAbs_REVERSED) CT2d->Reverse();
1844
1845 if (CT2d->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Circle)) &&
873c119f 1846 ( Abs(f-l) >= M_PI) ) {
1847 return 0;
7fd59977 1848 }
1849
1850 //-------------------------
0d969553 1851 // Cut curve.
7fd59977 1852 //-------------------------
1853 Cuter.Perform(CT2d);
1854
873c119f 1855 // Modified by Sergey KHROMOV - Thu Nov 16 17:28:29 2000 Begin
7fd59977 1856 if (ForceCut == 0) {
1857 if (Cuter.UnModified()) {
873c119f 1858 //-----------------------------
1859 // edge not modified => return.
1860 //-----------------------------
7fd59977 1861 return 0;
1862 } else {
1863 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
873c119f 1864 theCurves.Append(Cuter.Value(k));
7fd59977 1865 }
1866 } else if (ForceCut == 1) {
1867 if (Cuter.UnModified()) {
1868 CutCurve (CT2d, 2, theCurves);
1869 } else {
1870 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
873c119f 1871
1872 theCurves.Append(Cuter.Value(k));
7fd59977 1873 }
1874 } else if (ForceCut == 2) {
1875 if (Cuter.UnModified()) {
1876 CutCurve (CT2d, 3, theCurves);
1877 } else {
1878 if (Cuter.NbCurves() == 2) {
873c119f 1879
1880 Handle(Geom2d_TrimmedCurve)CC = Cuter.Value(1);
1881
1882 if (CC->LastParameter() > (l+f)/2.) {
1883 CutCurve (CC, 2, theCurves);
1884 theCurves.Append(Cuter.Value(2));
1885 } else {
1886 theCurves.Append(CC);
1887 CutCurve (Cuter.Value(2), 2, theCurves);
1888 }
7fd59977 1889 } else {
873c119f 1890 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
1891 theCurves.Append(Cuter.Value(k));
7fd59977 1892 }
1893 }
1894 }
873c119f 1895
1896 // Modified by Sergey KHROMOV - Thu Nov 16 17:28:37 2000 End
7fd59977 1897
1898 //--------------------------------------
0d969553 1899 // Creation of cut edges.
7fd59977 1900 //--------------------------------------
1901 VF = V1;
1902
1903 for (Standard_Integer k = 1; k <= theCurves.Length(); k++) {
1904
1905 Handle(Geom2d_TrimmedCurve)CC = Handle(Geom2d_TrimmedCurve)::DownCast(theCurves.Value(k));
1906
1907 if (k == theCurves.Length()) {VL = V2;}
1908 else {
873c119f 1909 // Modified by Sergey KHROMOV - Wed Mar 6 17:38:02 2002 Begin
7fd59977 1910 gp_Pnt P = aC->Value(CC->LastParameter());
1911
1912 VL = BRepLib_MakeVertex(P);
1913 B.UpdateVertex(VL, aTol);
873c119f 1914 // Modified by Sergey KHROMOV - Wed Mar 6 17:38:05 2002 End
7fd59977 1915 }
1916 TopoDS_Shape aLocalShape = E.EmptyCopied();
1917 TopoDS_Edge NE = TopoDS::Edge(aLocalShape);
873c119f 1918 // TopoDS_Edge NE = TopoDS::Edge(E.EmptyCopied());
7fd59977 1919 NE.Orientation(TopAbs_FORWARD);
1920 B.Add (NE,VF.Oriented(TopAbs_FORWARD));
1921 B.Add (NE,VL.Oriented(TopAbs_REVERSED));
1922 B.Range(NE,CC->FirstParameter(),CC->LastParameter());
1923 Cuts.Append(NE.Oriented(E.Orientation()));
1924 VF = VL;
1925 }
1926
1927 return theCurves.Length();
1928}
1929
1930// Modified by Sergey KHROMOV - Thu Nov 16 17:27:56 2000 Begin
1931//=======================================================================
1932//function : CutCurve
1933//purpose :
1934//=======================================================================
1935
1936void CutCurve (const Handle(Geom2d_TrimmedCurve)& C,
873c119f 1937 const Standard_Integer nbParts,
1938 TColGeom2d_SequenceOfCurve& theCurves)
7fd59977 1939{
1940 Handle(Geom2d_TrimmedCurve) TrimC;
1941 Standard_Real UF,UL,UC;
1942 Standard_Real Step;
1943 gp_Pnt2d PF,PL,PC;
1944 Standard_Real PTol = Precision::PConfusion()*10;
1945 Standard_Real Tol = Precision::Confusion()*10;
1946 Standard_Boolean YaCut = Standard_False;
1947
1948 UF = C->FirstParameter();
1949 UL = C->LastParameter ();
1950 PF = C->Value(UF);
1951 PL = C->Value(UL);
1952
1953 Step = (UL - UF)/nbParts;
1954
1955 for (Standard_Integer i = 1; i < nbParts; i++) {
1956
1957 UC = UF + i*Step;
1958 PC = C->Value(UC);
1959
1960 if (UC - UF > PTol && PC.Distance(PF) > Tol) {
1961 if ( UL - UC < PTol || PL.Distance(PC) < Tol)
873c119f 1962 continue;
7fd59977 1963
1964 TrimC = new Geom2d_TrimmedCurve(C,UF,UC);
1965 theCurves.Append(TrimC);
1966 UF = UC;
1967 PF = PC;
1968 YaCut = Standard_True;
1969 }
1970 }
1971 if (YaCut) {
1972 TrimC = new Geom2d_TrimmedCurve(C,UF,UL);
1973 theCurves.Append(TrimC);
1974 } else
1975 theCurves.Append(C);
1976}
1977// Modified by Sergey KHROMOV - Thu Nov 16 17:28:13 2000 End
1978
1979//=======================================================================
1980//function : MakeCircle
1981//purpose :
1982//=======================================================================
1983
1984void MakeCircle (const TopoDS_Edge& E,
873c119f 1985 const TopoDS_Vertex& V,
1986 const TopoDS_Face& F,
1987 const Standard_Real Offset,
1988 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
1989 const Handle(Geom_Plane)& RefPlane)
7fd59977 1990{
0d969553 1991 // evaluate the Axis of the Circle.
7fd59977 1992 Standard_Real f,l;
1993 Handle(Geom2d_Curve) GC = BRep_Tool::CurveOnSurface(E,F,f,l);
1994 gp_Vec2d DX;
1995 gp_Pnt2d P;
1996
1997 if (E.Orientation() == TopAbs_FORWARD) {
1998 GC->D1(l,P,DX);
1999 DX.Reverse();
2000 }
2001 else GC->D1(f,P,DX);
2002
2003 gp_Ax2d Axis(P,gp_Dir2d(DX));
2004 Handle(Geom2d_Circle) Circ
2005 = new Geom2d_Circle(Axis, Abs(Offset), Offset < 0.);
2006
2007 // Bind the edges in my Map.
2008 TopoDS_Edge OE = BRepLib_MakeEdge(Circ, RefPlane);
2009 TopTools_ListOfShape LL;
2010
2011 LL.Append(OE);
86b3805f 2012 Map.Add(V,LL);
7fd59977 2013
873c119f 2014#ifdef OCCT_DEBUG
7fd59977 2015#ifdef DRAW
2016 if ( AffichGeom && !OE.IsNull()) {
1896126e 2017 char name[256];
7fd59977 2018 sprintf(name,"OFFSET_%d",++NbOFFSET);
2019 DBRep::Set(name,OE);
2020 }
2021#endif
873c119f 2022#endif
7fd59977 2023}
2024
2025//=======================================================================
2026//function : MakeOffset
2027//purpose :
2028//=======================================================================
2029
2030void MakeOffset (const TopoDS_Edge& E,
873c119f 2031 const TopoDS_Face& F,
2032 const Standard_Real Offset,
2033 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
2034 const Handle(Geom_Plane)& RefPlane,
2035 const Standard_Boolean IsOpenResult,
c7806cb6 2036 const GeomAbs_JoinType theJoinType,
873c119f 2037 const TopoDS_Vertex * Ends)
7fd59977 2038{
2039 Standard_Real f,l;
2040 Standard_Real anOffset = Offset;
2041
2042 if (E.Orientation() == TopAbs_REVERSED) anOffset *= -1;
2043
2044 Handle(Geom2d_Curve) G2d = BRep_Tool::CurveOnSurface(E,F,f,l);
2045 Handle(Geom2d_Curve) G2dOC;
2046
6a442250 2047 Standard_Boolean ToExtendFirstPar = Standard_True;
2048 Standard_Boolean ToExtendLastPar = Standard_True;
2049 if (IsOpenResult)
2050 {
2051 TopoDS_Vertex V1, V2;
2052 TopExp::Vertices(E, V1, V2);
2053 if (V1.IsSame(Ends[0]) ||
873c119f 2054 V1.IsSame(Ends[1]))
6a442250 2055 ToExtendFirstPar = Standard_False;
2056 if (V2.IsSame(Ends[0]) ||
873c119f 2057 V2.IsSame(Ends[1]))
6a442250 2058 ToExtendLastPar = Standard_False;
2059 }
2060
7fd59977 2061 Geom2dAdaptor_Curve AC(G2d,f,l);
2062 if ( AC.GetType() == GeomAbs_Circle) {
0d969553
Y		 2063 // if the offset is greater otr equal to the radius and the side of the
2064 // concavity of the circle => edge null.
7fd59977 2065 gp_Circ2d C1(AC.Circle());
7fd59977 2066 gp_Ax22d axes( C1.Axis());
2067 gp_Dir2d Xd = axes.XDirection();
2068 gp_Dir2d Yd = axes.YDirection();
2069 Standard_Real Crossed = Xd.X()*Yd.Y()-Xd.Y()*Yd.X();
2070 Standard_Real Signe = ( Crossed > 0.) ? 1. : -1.;
2071
9ffd84ad 2072 if (anOffset*Signe < AC.Circle().Radius() - Precision::Confusion()) {
0d969553 2073
7fd59977 2074 Handle(Geom2dAdaptor_HCurve) AHC =
873c119f 2075 new Geom2dAdaptor_HCurve(G2d);
7fd59977 2076 Adaptor3d_OffsetCurve Off(AHC,-anOffset);
2077 Handle(Geom2d_Circle) CC = new Geom2d_Circle(Off.Circle());
2078
c6541a0c 2079 Standard_Real Delta = 2*M_PI - l + f;
c7806cb6 2080 if (theJoinType == GeomAbs_Arc)
2081 {
873c119f 2082 if (ToExtendFirstPar)
2083 f -= 0.2*Delta;
2084 if (ToExtendLastPar)
2085 l += 0.2*Delta;
c7806cb6 2086 }
2087 else //GeomAbs_Intersection
2088 {
2089 if (ToExtendFirstPar && ToExtendLastPar)
2090 {
2091 Standard_Real old_l = l;
2092 f = old_l + Delta/2.;
2093 l = f + 2*M_PI;
2094 }
2095 else if (ToExtendFirstPar)
2096 {
2097 f = l;
2098 l = f + 2*M_PI;
2099 }
2100 else if (ToExtendLastPar)
2101 {
2102 l = f + 2*M_PI;
2103 }
2104 }
7fd59977 2105 G2dOC = new Geom2d_TrimmedCurve(CC,f,l);
2106 }
2107 }
2108 else if (AC.GetType() == GeomAbs_Line) {
2109 Handle(Geom2dAdaptor_HCurve) AHC =
2110 new Geom2dAdaptor_HCurve(G2d);
2111 Adaptor3d_OffsetCurve Off(AHC,anOffset);
2112 Handle(Geom2d_Line) CC = new Geom2d_Line(Off.Line());
2113 Standard_Real Delta = (l - f);
6a442250 2114 if (ToExtendFirstPar)
c7806cb6 2115 {
2116 if (theJoinType == GeomAbs_Arc)
873c119f 2117 f -= Delta;
c7806cb6 2118 else //GeomAbs_Intersection
2119 f = -Precision::Infinite();
2120 }
6a442250 2121 if (ToExtendLastPar)
c7806cb6 2122 {
2123 if (theJoinType == GeomAbs_Arc)
873c119f 2124 l += Delta;
c7806cb6 2125 else //GeomAbs_Intersection
2126 l = Precision::Infinite();
2127 }
7fd59977 2128 G2dOC = new Geom2d_TrimmedCurve(CC,f,l);
2129 }
2130 else {
2131
2132 anOffset = -anOffset;
2133 Handle(Geom2d_TrimmedCurve) G2dT = new Geom2d_TrimmedCurve(G2d,f,l);
2134 G2dOC = new Geom2d_OffsetCurve( G2dT, anOffset);
2135
2136 }
2137
2138 // Bind the edges in my Map.
2139 if (!G2dOC.IsNull()) {
2140 TopoDS_Edge OE = BRepLib_MakeEdge(G2dOC, RefPlane);
2141 OE.Orientation(E.Orientation());
2142 TopTools_ListOfShape LL;
2143 LL.Append(OE);
86b3805f 2144 Map.Add(E,LL);
7fd59977 2145
873c119f 2146#ifdef OCCT_DEBUG
7fd59977 2147#ifdef DRAW
2148 if (AffichGeom && !OE.IsNull()) {
1896126e 2149 char name[256];
7fd59977 2150 sprintf(name,"OFFSET_%d",++NbOFFSET);
2151 DBRep::Set(name,OE);
873c119f 2152 //Standard_Real ii = 0;
7fd59977 2153 }
2154#endif
873c119f 2155#endif
2156
7fd59977 2157 }
2158}
2159
7fd59977 2160
2161//=======================================================================
2162//function : VertexFromNode
2163//purpose :
2164//=======================================================================
2165
2166Standard_Boolean VertexFromNode (const Handle(MAT_Node)& aNode,
873c119f 2167 const Standard_Real Offset,
2168 gp_Pnt2d& PN,
2169 BRepFill_DataMapOfNodeShape& MapNodeVertex,
2170 TopoDS_Vertex& VN)
7fd59977 2171{
2172 Standard_Boolean Status;
2173 Standard_Real Tol = Precision::Confusion();
2174 BRep_Builder B;
2175
2176 if (!aNode->Infinite() && Abs(aNode->Distance()-Offset) < Tol) {
2177 //------------------------------------------------
0d969553 2178 // the Node gives a vertex on the offset
7fd59977 2179 //------------------------------------------------
2180 if (MapNodeVertex.IsBound(aNode)) {
2181 VN = TopoDS::Vertex(MapNodeVertex(aNode));
2182 }
2183 else {
2184 gp_Pnt P(PN.X(),PN.Y(),0.);
2185 B.MakeVertex (VN);
2186 B.UpdateVertex(VN,P, Precision::Confusion());
2187 MapNodeVertex.Bind(aNode,VN);
2188 }
2189 Status = Standard_True;
2190 }
2191 else Status = Standard_False;
2192
2193 return Status;
2194}
2195
2196
2197//=======================================================================
2198//function : StoreInMap
2199//purpose :
2200//=======================================================================
2201
2202void StoreInMap (const TopoDS_Shape& V1,
873c119f 2203 const TopoDS_Shape& V2,
2204 TopTools_IndexedDataMapOfShapeShape& MapVV)
7fd59977 2205{
2206 TopoDS_Shape OldV = V1, NewV = V2;
2207 Standard_Integer i;
2208
2209 if (MapVV.Contains(V2))
2210 NewV = MapVV.FindFromKey(V2);
2211
2212 if (MapVV.Contains(V1))
2213 MapVV.ChangeFromKey(V1) = NewV;
2214
2215 for (i = 1; i <= MapVV.Extent(); i++)
2216 if (MapVV(i).IsSame(V1))
2217 MapVV(i) = NewV;
2218
2219 MapVV.Add(V1, NewV);
2220}
2221
2222//=======================================================================
2223//function : TrimEdge
2224//purpose :
2225//=======================================================================
2226
2227void TrimEdge (const TopoDS_Edge& E,
e11c1bc4 2228 const TopoDS_Shape& ProE,
2229 const TopoDS_Face& AllSpine,
7fd59977 2230 const TopTools_ListOfShape& Detromp,
6a442250 2231 TopTools_SequenceOfShape& TheVer,
2232 TColStd_SequenceOfReal& ThePar,
2233 TopTools_SequenceOfShape& S,
2234 TopTools_IndexedDataMapOfShapeShape& MapVV,
2235 const Standard_Integer IndOfE)
7fd59977 2236{
2237 Standard_Boolean Change = Standard_True;
2238 BRep_Builder TheBuilder;
2239 S.Clear();
2240
2241 //-----------------------------------------------------------
0d969553 2242 // Parse two sequences depending on the parameter on the edge.
7fd59977 2243 //-----------------------------------------------------------
2244 while (Change) {
2245 Change = Standard_False;
2246 for (Standard_Integer i = 1; i < ThePar.Length(); i++) {
2247 if (ThePar.Value(i) > ThePar.Value(i+1)) {
873c119f 2248 ThePar.Exchange(i,i+1);
2249 TheVer.Exchange(i,i+1);
2250 Change = Standard_True;
7fd59977 2251 }
2252 }
2253 }
2254
2255 //----------------------------------------------------------
0d969553 2256 // If a vertex is not in the proofing, it is eliminated.
7fd59977 2257 //----------------------------------------------------------
2258 if (!BRep_Tool::Degenerated(E)) {
2259 for (Standard_Integer k = 1; k <= TheVer.Length(); k ++) {
2260 if ( DoubleOrNotInside (Detromp,
873c119f 2261 TopoDS::Vertex(TheVer.Value(k)))) {
2262 TheVer.Remove(k);
2263 ThePar.Remove(k);
2264 k--;
7fd59977 2265 }
2266 }
2267 }
2268
2269 //----------------------------------------------------------
0d969553
Y		 2270 // If a vertex_double appears twice in the proofing
2271 // the vertex is removed.
2272 // otherwise preserve only one of its representations.
7fd59977 2273 //----------------------------------------------------------
2274 if (!BRep_Tool::Degenerated(E)) {
94f71cad 2275 Standard_Real aParTol = 2.0 * Precision::PConfusion();
7fd59977 2276 for (Standard_Integer k = 1; k < TheVer.Length(); k ++) {
2277 if (TheVer.Value(k).IsSame(TheVer.Value(k+1)) ||
94f71cad 2278 Abs(ThePar.Value(k)-ThePar.Value(k+1)) <= aParTol) {
873c119f 2279
2280 if(k+1 == TheVer.Length()) {
2281 StoreInMap(TheVer(k), TheVer(k+1), MapVV);
2282 TheVer.Remove(k);
2283 ThePar.Remove(k);
2284 }
2285 else {
2286 StoreInMap(TheVer(k+1), TheVer(k), MapVV);
2287 TheVer.Remove(k+1);
2288 ThePar.Remove(k+1);
2289 }
2290 /*
2291 if ( DoubleOrNotInside (Detromp,
2292 TopoDS::Vertex(TheVer.Value(k)))) {
2293 TheVer.Remove(k);
2294 ThePar.Remove(k);
2295 k--;
2296 }
2297 */
2298 k--;
7fd59977 2299 }
2300 }
2301 }
2302 //-----------------------------------------------------------
0d969553
Y		 2303 // Creation of edges.
2304 // the number of vertices should be even. The created edges
2305 // go from a vertex with uneven index i to vertex i+1;
7fd59977 2306 //-----------------------------------------------------------
6a442250 2307 if (IndOfE == 1 || IndOfE == -1) //open result and extreme edges of result
2308 {
7fd59977 2309 TopoDS_Shape aLocalShape = E.EmptyCopied();
2310 TopoDS_Edge NewEdge = TopoDS::Edge(aLocalShape);
6a442250 2311 TopoDS_Vertex V1, V2;
2312 TopExp::Vertices(E, V1, V2);
2313 Standard_Real fpar, lpar;
e11c1bc4 2314 Handle(Geom_Surface) aPlane;
2315 TopLoc_Location aLoc;
2316 Handle(Geom2d_Curve) PCurve;
2317 BRep_Tool::CurveOnSurface(E, PCurve, aPlane, aLoc, fpar, lpar);
2318 //BRep_Tool::Range(E, fpar, lpar);
2319
2320 Standard_Real TrPar1, TrPar2;
2321 Standard_Boolean ToTrimAsOrigin = IsInnerEdge(ProE, AllSpine, TrPar1, TrPar2);
2322
6a442250 2323 if (IndOfE == 1) //first edge of open wire
2324 {
2325 if (NewEdge.Orientation() == TopAbs_FORWARD)
2326 {
e11c1bc4 2327 if (ToTrimAsOrigin)
2328 {
2329 fpar = TrPar1;
2330 gp_Pnt2d TrPnt2d = PCurve->Value(fpar);
2331 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2332 V1 = BRepLib_MakeVertex(TrPnt);
2333 }
6a442250 2334 TheBuilder.Add(NewEdge, V1.Oriented(TopAbs_FORWARD));
2335 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_REVERSED));
2336 TheBuilder.Range(NewEdge, fpar, ThePar.First());
2337 }
2338 else
2339 {
e11c1bc4 2340 if (ToTrimAsOrigin)
2341 {
2342 lpar = TrPar2;
2343 gp_Pnt2d TrPnt2d = PCurve->Value(lpar);
2344 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2345 V2 = BRepLib_MakeVertex(TrPnt);
2346 }
6a442250 2347 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_REVERSED));
2348 TheBuilder.Add(NewEdge, V2.Oriented(TopAbs_FORWARD));
2349 TheBuilder.Range(NewEdge, ThePar.First(), lpar);
2350 }
7fd59977 2351 }
6a442250 2352 else //last edge of open wire
2353 {
2354 if (NewEdge.Orientation() == TopAbs_FORWARD)
2355 {
e11c1bc4 2356 if (ToTrimAsOrigin)
2357 {
2358 lpar = TrPar2;
2359 gp_Pnt2d TrPnt2d = PCurve->Value(lpar);
2360 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2361 V2 = BRepLib_MakeVertex(TrPnt);
2362 }
6a442250 2363 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_FORWARD));
2364 TheBuilder.Add(NewEdge, V2.Oriented(TopAbs_REVERSED));
2365 TheBuilder.Range(NewEdge, ThePar.First(), lpar);
2366 }
2367 else
2368 {
e11c1bc4 2369 if (ToTrimAsOrigin)
2370 {
2371 fpar = TrPar1;
2372 gp_Pnt2d TrPnt2d = PCurve->Value(fpar);
2373 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2374 V1 = BRepLib_MakeVertex(TrPnt);
2375 }
6a442250 2376 TheBuilder.Add(NewEdge, V1.Oriented(TopAbs_REVERSED));
2377 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_FORWARD));
2378 TheBuilder.Range(NewEdge, fpar, ThePar.First());
2379 }
7fd59977 2380 }
6a442250 2381 S.Append(NewEdge);
2382 }
2383 else
2384 {
2385 for (Standard_Integer k = 1; k < TheVer.Length(); k = k+2) {
2386 TopoDS_Shape aLocalShape = E.EmptyCopied();
2387 TopoDS_Edge NewEdge = TopoDS::Edge(aLocalShape);
2388 // TopoDS_Edge NewEdge = TopoDS::Edge(E.EmptyCopied());
2389
2390 if (NewEdge.Orientation() == TopAbs_REVERSED) {
2391 TheBuilder.Add (NewEdge,TheVer.Value(k) .Oriented(TopAbs_REVERSED));
2392 TheBuilder.Add (NewEdge,TheVer.Value(k+1).Oriented(TopAbs_FORWARD));
2393 }
2394 else {
2395 TheBuilder.Add (NewEdge,TheVer.Value(k) .Oriented(TopAbs_FORWARD));
2396 TheBuilder.Add (NewEdge,TheVer.Value(k+1).Oriented(TopAbs_REVERSED));
2397 }
2398
2399
2400 TheBuilder.Range(NewEdge,ThePar.Value(k),ThePar.Value(k+1));
2401
873c119f 2402#ifdef OCCT_DEBUG
7fd59977 2403#ifdef DRAW
6a442250 2404 if ( AffichEdge) {
2405 char name[256];
2406 sprintf(name,"TRIMEDGE_%d",NbTRIMEDGES);
2407 DBRep::Set(name,NewEdge);
2408 }
2409 if (Affich2d) {
2410 TopLoc_Location L;
2411 Standard_Real f,l;
2412 Handle(Geom_Surface) Surf;
2413 Handle(Geom2d_Curve) C;
2414 BRep_Tool::CurveOnSurface(NewEdge,C,Surf,L,f,l);
2415 char name[256];
2416 sprintf(name,"OFFSET2d_%d",NbTRIMEDGES++);
2417 Handle(Geom2d_TrimmedCurve) C2d = new Geom2d_TrimmedCurve(C,f,l);
2418 Handle(DrawTrSurf_Curve2d) dr =
2419 new DrawTrSurf_Curve2d(C2d,Standard_False);
2420 dr->SetColor(Draw_bleu);
2421 Draw::Set(name,dr);
2422 }
7fd59977 2423#endif
873c119f 2424#endif
6a442250 2425 S.Append(NewEdge);
2426 }
7fd59977 2427 }
2428}
2429
e11c1bc4 2430//=======================================================================
2431//function : IsInnerEdge
2432//purpose :
2433//=======================================================================
2434
2435static Standard_Boolean IsInnerEdge(const TopoDS_Shape& ProE,
2436 const TopoDS_Face& AllSpine,
2437 Standard_Real& TrPar1,
2438 Standard_Real& TrPar2)
2439{
2440 if (ProE.ShapeType() != TopAbs_EDGE)
2441 return Standard_False;
2442
2443 TopoDS_Edge anEdge = TopoDS::Edge(ProE);
2444
2445 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
2446 TopExp::MapShapesAndAncestors(AllSpine, TopAbs_VERTEX, TopAbs_EDGE, VEmap);
2447 for (Standard_Integer i = 1; i <= VEmap.Extent(); i++)
2448 {
2449 const TopTools_ListOfShape& LE = VEmap(i);
2450 if (LE.Extent() == 1 && anEdge.IsSame(LE.First()))
2451 return Standard_False;
2452 }
2453
2454 BRep_Tool::Range(anEdge, TrPar1, TrPar2);
2455 return Standard_True;
2456}
2457
2458
2459
7fd59977 2460//=======================================================================
2461//function : DoubleOrNotInside
0d969553 2462//purpose : return True if V appears twice in LV or is not inside.
7fd59977 2463//=======================================================================
2464
2465Standard_Boolean DoubleOrNotInside (const TopTools_ListOfShape& LV,
873c119f 2466 const TopoDS_Vertex& V)
7fd59977 2467{
2468 Standard_Boolean Vu = Standard_False;
2469 TopTools_ListIteratorOfListOfShape it(LV);
2470
2471 for ( ; it.More(); it.Next()) {
2472 if (V.IsSame(it.Value())) {
2473 if (Vu) return Standard_True;
2474 else Vu = Standard_True;
2475 }
2476 }
2477 if (Vu) return Standard_False;
2478 else return Standard_True;
2479}
2480
2481Standard_Boolean IsSmallClosedEdge(const TopoDS_Edge& anEdge,
873c119f 2482 const TopoDS_Vertex& aVertex)
7fd59977 2483{
2484 gp_Pnt PV = BRep_Tool::Pnt(aVertex);
2485 gp_Pnt2d PV2d, Pfirst, Plast, Pmid;
2486 PV2d.SetCoord( PV.X(), PV.Y() );
2487
2488 Handle(Geom2d_Curve) PCurve;
2489 Handle( BRep_CurveRepresentation ) CurveRep =
2490 ((Handle(BRep_TEdge)::DownCast(anEdge.TShape()))->Curves()).First();
2491 PCurve = CurveRep->PCurve();
2492
2493 Standard_Real fpar = (Handle(BRep_GCurve)::DownCast(CurveRep))->First();
2494 Standard_Real lpar = (Handle(BRep_GCurve)::DownCast(CurveRep))->Last();
2495 Pfirst = PCurve->Value(fpar);
2496 Plast = PCurve->Value(lpar);
2497 Pmid = PCurve->Value((fpar + lpar)*0.5);
2498
2499 Standard_Real theTol = BRep_Tool::Tolerance(aVertex);
2500 theTol *= 1.5;
2501
2502 Standard_Real dist1 = Pfirst.Distance(PV2d);
2503 Standard_Real dist2 = Plast.Distance(PV2d);
2504 Standard_Real dist3 = Pmid.Distance(PV2d);
2505
2506 if (dist1 <= theTol && dist2 <= theTol && dist3 <= theTol)
2507 return Standard_True;
2508
2509 return Standard_False;
2510}
2511
2512static void CheckBadEdges(const TopoDS_Face& Spine, const Standard_Real Offset,
873c119f 2513 const BRepMAT2d_BisectingLocus& Locus,
2514 const BRepMAT2d_LinkTopoBilo& Link,
2515 TopTools_ListOfShape& BadEdges)
7fd59977 2516{
2517
2518 TopoDS_Face F = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
2519 Standard_Real eps = Precision::Confusion();
2520 Standard_Real LimCurv = 1./Offset;
2521
2522 TopTools_MapOfShape aMap;
2523
2524 for (Standard_Integer ic = 1; ic <= Locus.NumberOfContours(); ic++) {
2525 for (Standard_Integer ie = 1; ie <= Locus.NumberOfElts(ic); ie++) {
2526 const TopoDS_Shape& SE = Link.GeneratingShape(Locus.BasicElt(ic,ie));
2527 if (SE.ShapeType() == TopAbs_EDGE) {
2528
873c119f 2529
2530 if (aMap.Contains(SE)) {
2531 //cout << "Edge is treated second time" << endl;
2532 continue;
2533 }
2534
2535
2536 TopoDS_Edge E = TopoDS::Edge(SE);
2537
2538
2539 Standard_Real f,l;
2540
2541
2542 Handle(Geom2d_Curve) G2d = BRep_Tool::CurveOnSurface(E,F,f,l);
2543
2544
2545 Geom2dAdaptor_Curve AC(G2d,f,l);
2546 GeomAbs_CurveType aCType = AC.GetType();
2547
2548
2549 if(aCType != GeomAbs_Line && aCType != GeomAbs_Circle) {
2550
2551
2552 Standard_Boolean reverse = Standard_False;
2553 if (E.Orientation() == TopAbs_FORWARD) reverse = Standard_True;
2554
2555
2556 gp_Pnt2d P, Pc;
2557 gp_Dir2d N;
2558
2559
2560 Geom2dLProp_CLProps2d aCLProps(G2d, 2, eps);
2561
2562
2563 aCLProps.SetParameter(f);
2564 if(!aCLProps.IsTangentDefined()) {
2565 BadEdges.Append(SE);
2566 aMap.Add(SE);
2567 continue;
2568 }
2569
2570
2571 P = aCLProps.Value();
2572 Standard_Real Crv = aCLProps.Curvature();
2573
2574
2575 if(Crv >= eps) {
2576 aCLProps.Tangent(N);
2577 Standard_Real x = N.Y(), y = -N.X();
2578 N.SetCoord(x, y);
2579 if (reverse) N.Reverse();
2580 aCLProps.CentreOfCurvature(Pc);
2581 gp_Vec2d Dir( P, Pc );
2582 if (N.Dot(Dir) > 0.) {
2583 if (LimCurv <= Crv + eps) {
2584 BadEdges.Append(SE);
2585 aMap.Add(SE);
2586 continue;
2587 }
2588 }
2589 }
2590
2591
2592 aCLProps.SetParameter(l);
2593 if(!aCLProps.IsTangentDefined()) {
2594 BadEdges.Append(SE);
2595 aMap.Add(SE);
2596 continue;
2597 }
2598
2599
2600 P = aCLProps.Value();
2601 Crv = aCLProps.Curvature();
2602
2603
2604 if(Crv >= eps) {
2605 aCLProps.Tangent(N);
2606 Standard_Real x = N.Y(), y = -N.X();
2607 N.SetCoord(x, y);
2608 if (reverse) N.Reverse();
2609 aCLProps.CentreOfCurvature(Pc);
2610 gp_Vec2d Dir( P, Pc );
2611 if (N.Dot(Dir) > 0.) {
2612 if (LimCurv <= Crv + eps) {
2613 BadEdges.Append(SE);
2614 aMap.Add(SE);
2615 continue;
2616 }
2617 }
2618 }
2619 }
7fd59977 2620 }
2621 }
2622 }
2623}
2624
2625
2626//=======================================================================
2627//function : PerformCurve
2628//purpose :
2629//=======================================================================
2630
2631static Standard_Boolean PerformCurve (TColStd_SequenceOfReal& Parameters,
873c119f 2632
2633 TColgp_SequenceOfPnt& Points,
2634 const Adaptor3d_Curve& C,
2635 const Standard_Real Deflection,
2636 const Standard_Real U1,
2637 const Standard_Real U2,
2638 const Standard_Real EPSILON,
2639 const Standard_Integer Nbmin)
7fd59977 2640{
2641 Standard_Real UU1 = Min(U1, U2);
2642 Standard_Real UU2 = Max(U1, U2);
2643
2644 gp_Pnt Pdeb, Pfin;
2645 gp_Vec Ddeb,Dfin;
2646 C.D1(UU1,Pdeb,Ddeb);
2647 Parameters.Append(UU1);
2648 Points.Append(Pdeb);
2649
2650 C.D1(UU2,Pfin,Dfin);
91bb31f3 2651
2652 const Standard_Real aDelta = UU2 - UU1;
2653 const Standard_Real aDist = Pdeb.Distance(Pfin);
2654
2655 if((aDelta/aDist) > 5.0e-14)
2656 {
2657 QuasiFleche(C,Deflection*Deflection,
873c119f 2658
2659 UU1,Pdeb,
2660 Ddeb,
2661 UU2,Pfin,
2662 Dfin,
2663 Nbmin,
2664 EPSILON*EPSILON,
2665 Parameters,Points);
91bb31f3 2666 }
2667
7fd59977 2668 return Standard_True;
2669}
2670//=======================================================================
2671//function : QuasiFleche
2672//purpose :
2673//=======================================================================
2674
2675static void QuasiFleche(const Adaptor3d_Curve& C,
873c119f 2676
2677 const Standard_Real Deflection2,
2678 const Standard_Real Udeb,
2679 const gp_Pnt& Pdeb,
2680 const gp_Vec& Vdeb,
2681 const Standard_Real Ufin,
2682 const gp_Pnt& Pfin,
2683 const gp_Vec& Vfin,
2684 const Standard_Integer Nbmin,
2685 const Standard_Real Eps,
2686 TColStd_SequenceOfReal& Parameters,
2687 TColgp_SequenceOfPnt& Points)
7fd59977 2688{
2689 Standard_Integer Ptslength = Points.Length();
2690 Standard_Real Udelta = Ufin-Udeb;
2691 gp_Pnt Pdelta;
2692 gp_Vec Vdelta;
2693 if (Nbmin > 2) {
2694 Udelta /=(Nbmin-1);
2695 C.D1(Udeb+Udelta,Pdelta,Vdelta);
2696 }
2697 else {
2698 Pdelta = Pfin;
2699 Vdelta = Vfin;
2700 }
2701
2702
2703 Standard_Real Norme = gp_Vec(Pdeb,Pdelta).SquareMagnitude();
2704 Standard_Real theFleche=0;
2705 Standard_Boolean flecheok = Standard_False;
2706 if (Norme > Eps) {
0d969553 2707 // Evaluation of the arrow by interpolation. See IntWalk_IWalking_5.gxx
7fd59977 2708 Standard_Real N1 = Vdeb.SquareMagnitude();
2709 Standard_Real N2 = Vdelta.SquareMagnitude();
2710 if (N1 > Eps && N2 > Eps) {
2711 Standard_Real Normediff =
873c119f 2712
2713 (Vdeb.Normalized().XYZ()-Vdelta.Normalized().XYZ()).SquareModulus();
7fd59977 2714 if (Normediff > Eps) {
873c119f 2715
2716 theFleche = Normediff*Norme/64.;
2717 flecheok = Standard_True;
7fd59977 2718 }
2719 }
2720 }
2721 if (!flecheok) {
2722 gp_Pnt Pmid((Pdeb.XYZ()+Pdelta.XYZ())/2.);
2723 gp_Pnt Pverif(C.Value(Udeb+Udelta/2.));
2724 theFleche = Pmid.SquareDistance(Pverif);
2725 }
2726
2727 if (theFleche < Deflection2) {
2728 Parameters.Append(Udeb+Udelta);
2729 Points.Append(Pdelta);
2730 }
2731 else {
2732 QuasiFleche(C,Deflection2,Udeb,Pdeb,
873c119f 2733
2734 Vdeb,
2735 Udeb+Udelta,Pdelta,
2736 Vdelta,
2737 3,
2738 Eps,
2739 Parameters,Points);
7fd59977 2740
2741 }
2742
2743 if (Nbmin > 2) {
2744 QuasiFleche(C,Deflection2,Udeb+Udelta,Pdelta,
873c119f 2745
2746 Vdelta,
2747 Ufin,Pfin,
2748 Vfin,
2749 Nbmin-(Points.Length()-Ptslength),
2750 Eps,
2751 Parameters,Points);
7fd59977 2752 }
2753}
ab87e6fc 2754
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