0024002: Overall code and build procedure refactoring -- automatic
[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
814
873c119f 815#ifdef OCCT_DEBUG
1896126e 816#ifdef DRAW
7fd59977 817 if (AffichEdge) {
0d969553 818 cout << " End Construction of geometric primitives "<<endl;
7fd59977 819 }
820#endif
873c119f 821#endif
7fd59977 822
823
824 //---------------------------------------------------
0d969553 825 // Construction of offset vertices.
7fd59977 826 //---------------------------------------------------
827 BRepFill_DataMapOfOrientedShapeListOfShape Detromp;
828 Handle(MAT_Arc) CurrentArc;
829 Handle(Geom2d_Curve) Bis, PCurve1, PCurve2 ;
830 Handle(Geom_Curve) CBis;
831 Standard_Boolean Reverse;
832 TopoDS_Edge CurrentEdge;
833 TopoDS_Shape S [2];
834 TopoDS_Edge E [2];
835 TopLoc_Location L;
86b3805f 836 Standard_Integer j, k;
7fd59977 837
838 for (Standard_Integer i = 1; i <= Locus.Graph()->NumberOfArcs(); i++) {
839
840 CurrentArc = Locus.Graph()->Arc(i);
841 Bisector_Bisec Bisec = Locus.GeomBis(CurrentArc,Reverse);
873c119f 842#ifdef OCCT_DEBUG
7fd59977 843#ifdef DRAW
873c119f 844
845 if ( AffichGeom) {
846 char name[256];
847 sprintf(name,"BISSEC_%d",NbBISSEC++);
848 DrawTrSurf::Set(name,Bisec.Value());
849 }
850#endif
7fd59977 851#endif
852
0d969553
Y
853 //-------------------------------------------------------------------
854 // Return elements of the spine corresponding to separate basicElts.
855 //-------------------------------------------------------------------
7fd59977 856 S [0] = Link.GeneratingShape(CurrentArc->FirstElement());
857 S [1] = Link.GeneratingShape(CurrentArc->SecondElement());
858
859 TopTools_SequenceOfShape Vertices;
860 TColgp_SequenceOfPnt Params;
873c119f 861
7fd59977 862 TopTools_DataMapOfShapeSequenceOfShape MapSeqVer;
863 BRepFill_DataMapOfShapeSequenceOfPnt MapSeqPar;
864
865 //-----------------------------------------------------------
0d969553
Y
866 // Return parallel edges on each face.
867 // If no offset generated => move to the next bissectrice.
7fd59977 868 //--------------------------------------------------------------
86b3805f
J
869 if (myMap.Contains(S[0]) && myMap.Contains(S[1])) {
870 E [0] = TopoDS::Edge(myMap.FindFromKey(S[0]).First());
871 E [1] = TopoDS::Edge(myMap.FindFromKey(S[1]).First());
7fd59977 872 }
873 else continue;
874
875 //-----------------------------------------------------------
0d969553
Y
876 // Construction of vertices corresponding to the node of the map.
877 // if they are on the offset.
7fd59977 878 //-----------------------------------------------------------
879 TopoDS_Vertex VS,VE;
880 Handle(MAT_Node) Node1, Node2;
881
882 if (Reverse) {
883 Node1 = CurrentArc->SecondNode();
884 Node2 = CurrentArc->FirstNode();
885 }
886 else {
887 Node1 = CurrentArc->FirstNode();
888 Node2 = CurrentArc->SecondNode();
889 }
873c119f 890
7fd59977 891 Standard_Boolean StartOnEdge = 0, EndOnEdge = 0;
873c119f 892
7fd59977 893 if (!Node1->Infinite()) {
894 gp_Pnt2d aLocalPnt2d = Locus.GeomElt(Node1);
895 StartOnEdge = VertexFromNode(Node1, myOffset, aLocalPnt2d ,MapNodeVertex,VS);
873c119f 896 // StartOnEdge = VertexFromNode(Node1, myOffset, Locus.GeomElt(Node1),
897 // MapNodeVertex,VS);
7fd59977 898 }
899 if (!Node2->Infinite()) {
900 gp_Pnt2d aLocalPnt2d = Locus.GeomElt(Node2) ;
901 EndOnEdge = VertexFromNode(Node2, myOffset, aLocalPnt2d ,MapNodeVertex,VE);
873c119f 902 // EndOnEdge = VertexFromNode(Node2, myOffset, Locus.GeomElt(Node2),
903 // MapNodeVertex,VE);
7fd59977 904 }
905
9eb68d38 906 if (myJoinType == GeomAbs_Intersection)
907 StartOnEdge = EndOnEdge = 0;
908
7fd59977 909 //---------------------------------------------
0d969553 910 // Construction of geometries.
7fd59977 911 //---------------------------------------------
912 BRepFill_TrimEdgeTool Trim (Bisec,
873c119f 913 Locus.GeomElt(CurrentArc->FirstElement()),
914 Locus.GeomElt(CurrentArc->SecondElement()),
915 myOffset);
7fd59977 916
917 //-----------------------------------------------------------
0d969553 918 // Construction of vertices on edges parallel to the spine.
7fd59977 919 //-----------------------------------------------------------
920
9eb68d38 921 Trim.IntersectWith(E [0], E [1], myJoinType, Params);
7fd59977 922
923 for (Standard_Integer s = 1; s <= Params.Length(); s++) {
924 TopoDS_Vertex VC;
925 myBuilder.MakeVertex (VC);
926 gp_Pnt2d P2 = Bisec.Value()->Value(Params.Value(s).X());
927 gp_Pnt PVC(P2.X(),P2.Y(),0.);
928
929 myBuilder.UpdateVertex(VC,PVC,Precision::Confusion());
930 Vertices.Append(VC);
931 }
932 if (StartOnEdge) {
933 Standard_Boolean Start = 1;
934 Trim.AddOrConfuse(Start, E[0], E[1], Params);
935 if (Params.Length() == Vertices.Length())
873c119f 936 Vertices.SetValue(1,VS);
7fd59977 937
938 else
873c119f 939 // the point was not found by IntersectWith
940 Vertices.Prepend(VS);
7fd59977 941 }
942 if (EndOnEdge) {
943 Standard_Boolean Start = 0;
944 Trim.AddOrConfuse(Start, E[0], E[1], Params);
945 if (Params.Length() == Vertices.Length())
873c119f 946 Vertices.SetValue(Params.Length(),VE);
7fd59977 947
948 else
873c119f 949 // the point was not found by IntersectWith
950 Vertices.Append(VE);
7fd59977 951 }
952
953 //------------------------------------------------------------
0d969553
Y
954 // Update Detromp.
955 // Detromp allows to remove vertices on the offset
956 // corresponding to tangency zones
957 // Detromp ranks the vertices that limit
958 // the parts of the bissectrices located between the spine and the
959 // offset.
7fd59977 960 //------------------------------------------------------------
961 if (!Detromp.IsBound(S[0])) Detromp.Bind(S[0],EmptyList);
962 if (!Detromp.IsBound(S[1])) Detromp.Bind(S[1],EmptyList);
963
964
c19dd45e 965 UpdateDetromp (Detromp, S[0], S[1], Vertices, Params,
873c119f 966 Bisec, StartOnEdge, EndOnEdge, Trim);
7fd59977 967 //----------------------------------------------
0d969553
Y
968 // Storage of vertices on parallel edges.
969 // fill MapBis and MapVerPar.
7fd59977 970 //----------------------------------------------
971 if (!Vertices.IsEmpty()) {
972 for (k = 0; k <= 1; k++) {
873c119f 973 if (!MapBis.IsBound(E[k])) {
974 MapBis .Bind(E[k],EmptySeq);
975 MapVerPar.Bind(E[k],EmptySeqOfReal);
976 }
977 for (Standard_Integer ii = 1; ii <= Vertices.Length(); ii++) {
978 MapBis (E[k]).Append(Vertices.Value(ii));
979 if (k == 0) MapVerPar (E[k]).Append(Params.Value(ii).Y());
980 else MapVerPar (E[k]).Append(Params.Value(ii).Z());
981 }
7fd59977 982 }
983 }
984 else {
985 //------------------------------------------------------------
0d969553
Y
986 // FOR COMPLETE CIRCLES. the parallel line can be contained
987 // in the zone without intersection with the border
988 // no intersection
989 // if myoffset is < distance of nodes the parallel can be valid.
7fd59977 990 //-------------------------------------------------------------
991 for (k = 0; k <= 1; k++) {
873c119f 992 if (!MapBis.IsBound(E[k])) {
993 if (Node1->Distance() > myOffset && Node2->Distance() > myOffset) {
994 MapBis .Bind(E[k],EmptySeq);
995 MapVerPar.Bind(E[k],EmptySeqOfReal);
996 }
997 }
7fd59977 998 }
999 }
1000 }
873c119f 1001
1002#ifdef OCCT_DEBUG
1896126e 1003#ifdef DRAW
7fd59977 1004 if (AffichEdge) {
0d969553 1005 cout << " End Construction of vertices on offsets"<<endl;
7fd59977 1006 }
1007#endif
873c119f 1008#endif
7fd59977 1009
1010 //----------------------------------
0d969553 1011 // Construction of parallel edges.
7fd59977 1012 //----------------------------------
1013 TopTools_IndexedDataMapOfShapeShape MapVV;
1014
1015 TopoDS_Shape CurrentSpine;
1016
86b3805f 1017 //BRepFill_DataMapIteratorOfDataMapOfOrientedShapeListOfShape ite1;
7fd59977 1018
86b3805f
J
1019 for (j = 1; j <= myMap.Extent(); j++) {
1020 CurrentSpine = myMap.FindKey(j);
1021 CurrentEdge = TopoDS::Edge(myMap(j).First());
7fd59977 1022
86b3805f 1023 myMap(j).Clear();
7fd59977 1024 if (MapBis.IsBound(CurrentEdge)) {
1025 TopTools_SequenceOfShape S;
1026 if (!MapBis(CurrentEdge).IsEmpty()) {
6a442250 1027 Standard_Integer IndOfE = 0;
1028 if (myIsOpenResult)
1029 {
1030 if (j == 1)
1031 IndOfE = 1;
1032 else if (j == myMap.Extent())
1033 IndOfE = -1;
1034 }
873c119f 1035 TrimEdge (CurrentEdge,
1036 CurrentSpine,
1037 mySpine,
1038 Detromp (CurrentSpine),
1039 MapBis (CurrentEdge) ,
1040 MapVerPar(CurrentEdge) ,
1041 S, MapVV, IndOfE);
1042 for ( k = 1; k <= S.Length(); k++) {
1043 myMap(j).Append(S.Value(k));
1044 }
7fd59977 1045 }
1046 else {
873c119f 1047 //-----------------
1048 // Complete circles
1049 //-----------------
1050 myMap(j).Append(CurrentEdge);
7fd59977 1051 }
1052 }
1053 }
873c119f 1054
7fd59977 1055 Standard_Integer ind;
1056 for (ind = 1; ind <= MapVV.Extent(); ind++)
873c119f 1057 {
1058 TopoDS_Vertex OldV = TopoDS::Vertex(MapVV.FindKey(ind));
1059 TopoDS_Vertex NewV = TopoDS::Vertex(MapVV(ind));
1060 gp_Pnt P1 = BRep_Tool::Pnt(OldV);
1061 gp_Pnt P2 = BRep_Tool::Pnt(NewV);
1062 myBuilder.UpdateVertex(NewV, P1.Distance(P2));
1063 TopTools_ListOfShape LV;
1064 LV.Append( NewV.Oriented(TopAbs_FORWARD) );
1065 BRepTools_Substitution aSubst;
1066 aSubst.Substitute( OldV, LV );
1067 for (j = 1; j <= myMap.Extent(); j++)
7fd59977 1068 {
873c119f 1069 TopTools_ListIteratorOfListOfShape itl(myMap(j));
1070 for (; itl.More(); itl.Next())
1071 {
1072 aSubst.Build(itl.Value());
1073 if (aSubst.IsCopied(itl.Value()))
1074 {
1075 const TopTools_ListOfShape& listSh = aSubst.Copy(itl.Value());
1076 TopAbs_Orientation SaveOr = itl.Value().Orientation();
1077 itl.Value() = listSh.First();
1078 itl.Value().Orientation(SaveOr);
1079 }
1080 }
7fd59977 1081 }
873c119f 1082 }
7fd59977 1083
1084 //----------------------------------
0d969553 1085 // Construction of offset wires.
7fd59977 1086 //----------------------------------
1087 MakeWires ();
1088
0d969553 1089 // Update vertices ( Constructed in the plane Z = 0) !!!
7fd59977 1090 TopTools_MapOfShape MapVertex;
1091 for ( TopExp_Explorer exp(myShape,TopAbs_VERTEX); exp.More(); exp.Next()) {
1092 TopoDS_Vertex V = TopoDS::Vertex(exp.Current());
1093 if ( MapVertex.Add(V)) {
1094 gp_Pnt P = BRep_Tool::Pnt(V);
1095 P = RefPlane->Value(P.X(),P.Y());
1096 myBuilder.UpdateVertex(V,P, Precision::Confusion());
1097 }
1098 }
1099
0d969553 1100 // Construction of curves 3d.
7fd59977 1101 BRepLib::BuildCurves3d(myShape);
1102 MapVertex.Clear();
1103 TopExp_Explorer Explo( myShape, TopAbs_EDGE );
1104 for (; Explo.More(); Explo.Next())
873c119f 1105 {
1106 TopoDS_Edge E = TopoDS::Edge( Explo.Current() );
1107 TopoDS_Vertex V1, V2;
1108 TopExp::Vertices( E, V1, V2 );
1109 Handle(BRep_TVertex)& TV1 = *((Handle(BRep_TVertex)*) &(V1).TShape());
1110 Handle(BRep_TVertex)& TV2 = *((Handle(BRep_TVertex)*) &(V2).TShape());
1111
1112 TopLoc_Location loc;
1113 Standard_Real f, l;
1114 Handle( Geom_Curve ) theCurve = BRep_Tool::Curve( E, loc, f, l );
1115 theCurve = Handle( Geom_Curve )::DownCast( theCurve->Copy() );
1116 theCurve->Transform( loc.Transformation() );
1117 gp_Pnt f3d = theCurve->Value( f );
1118 gp_Pnt l3d = theCurve->Value( l );
1119
1120 Standard_Real dist1, dist2;
1121 dist1 = f3d.Distance( TV1->Pnt() );
1122 dist2 = l3d.Distance( TV2->Pnt() );
1123 if (! MapVertex.Contains( V1 ))
7fd59977 1124 {
7fd59977 1125
873c119f 1126 TV1->Pnt( f3d );
1127 MapVertex.Add( V1 );
7fd59977 1128 }
873c119f 1129 else
1130 TV1->UpdateTolerance( 1.5*dist1 );
1131 if (! MapVertex.Contains( V2 ))
1132 {
1133 TV2->Pnt( l3d );
1134 MapVertex.Add( V2 );
1135 }
1136 else
1137 TV2->UpdateTolerance( 1.5*dist2 );
1138 }
7fd59977 1139
1867dc32 1140 if (!myIsOpenResult)
1141 FixHoles();
7fd59977 1142
1143 myIsDone = Standard_True;
1144}
1145
1146
1147//=======================================================================
1148//function : Generated
1149//purpose :
1150//=======================================================================
1151
86b3805f 1152BRepFill_IndexedDataMapOfOrientedShapeListOfShape&
873c119f 1153 BRepFill_OffsetWire::Generated()
7fd59977 1154{
1155 return myMap;
1156}
1157
1158
1159//=======================================================================
1160//function : PrepareSpine
1161//purpose :
1162//=======================================================================
1163
1164void BRepFill_OffsetWire::PrepareSpine()
1165{
1166 BRep_Builder B;
1167 TopTools_ListOfShape Cuts;
1168 TopTools_ListIteratorOfListOfShape IteCuts;
1169 TopoDS_Vertex V1,V2;
1170
1171 myWorkSpine.Nullify();
1172 myMapSpine.Clear();
1173
1174 TopLoc_Location L;
1175 const Handle(Geom_Surface)& S = BRep_Tool::Surface (mySpine,L);
1176 Standard_Real TolF = BRep_Tool::Tolerance(mySpine);
1177 B.MakeFace(myWorkSpine,S,L,TolF);
1178
1179 for (TopoDS_Iterator IteF(mySpine) ; IteF.More(); IteF.Next()) {
1180
1181 TopoDS_Wire NW;
1182 B.MakeWire (NW);
1183
873c119f 1184 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:55 2000 Begin
7fd59977 1185 Standard_Integer ForcedCut = 0;
1186 Standard_Integer nbResEdges = -1;
1187 TopTools_IndexedMapOfShape EdgeMap;
1188
1189 TopExp::MapShapes(IteF.Value(), TopAbs_EDGE, EdgeMap);
1190 Standard_Integer nbEdges = EdgeMap.Extent();
1191
6a442250 1192 if (nbEdges == 1 && !myIsOpenResult) //in case of open wire there's no need to do it
7fd59977 1193 ForcedCut = 2;
873c119f 1194 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:48 2000 End
7fd59977 1195
1196 for (TopoDS_Iterator IteW(IteF.Value()); IteW.More(); IteW.Next()) {
1197
1198 const TopoDS_Edge& E = TopoDS::Edge(IteW.Value());
1199 EdgeVertices(E,V1,V2);
1200 myMapSpine.Bind(V1,V1);
1201 myMapSpine.Bind(V2,V2);
1202 Cuts.Clear();
1203
0d969553 1204 // Cut
7fd59977 1205 TopoDS_Shape aLocalShape = E.Oriented(TopAbs_FORWARD);
873c119f 1206 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:29 2000 Begin
7fd59977 1207 if (nbEdges == 2 && nbResEdges == 0)
873c119f 1208 ForcedCut = 1;
1209 // Modified by Sergey KHROMOV - Thu Nov 16 17:29:33 2000 End
7fd59977 1210 nbResEdges = CutEdge (TopoDS::Edge(aLocalShape), mySpine, ForcedCut, Cuts);
1211
1212 if (Cuts.IsEmpty()) {
873c119f 1213 B.Add(NW,E);
1214 myMapSpine.Bind(E,E);
7fd59977 1215 }
1216 else {
873c119f 1217 for (IteCuts.Initialize(Cuts); IteCuts.More(); IteCuts.Next()) {
1218 TopoDS_Edge NE = TopoDS::Edge(IteCuts.Value());
1219 NE.Orientation(E.Orientation());
1220 B.Add(NW,NE);
1221 myMapSpine.Bind(NE,E);
1222 EdgeVertices(NE,V1,V2);
1223 if (!myMapSpine.IsBound(V1)) myMapSpine.Bind(V1,E);
1224 if (!myMapSpine.IsBound(V2)) myMapSpine.Bind(V2,E);
1225 }
7fd59977 1226 }
1227 }
873c119f 1228 // Modified by Sergey KHROMOV - Thu Mar 7 09:17:41 2002 Begin
7fd59977 1229 TopoDS_Vertex aV1;
1230 TopoDS_Vertex aV2;
1231
1232 TopExp::Vertices(NW, aV1, aV2);
1233
1234 NW.Closed(aV1.IsSame(aV2));
873c119f 1235
1236 // Modified by Sergey KHROMOV - Thu Mar 7 09:17:43 2002 End
7fd59977 1237 B.Add(myWorkSpine, NW);
1238 }
1239
873c119f 1240#ifdef OCCT_DEBUG
7fd59977 1241#ifdef DRAW
1242 if ( AffichEdge) {
1896126e 1243 DBRep::Set("WS",myWorkSpine);
873c119f 1244 DBRep::Set("MS",mySpine);
1245 BRepTools::Write(myWorkSpine, "WS");
1246 BRepTools::Write(mySpine, "MS");
7fd59977 1247 }
1248#endif
873c119f 1249#endif
7fd59977 1250
1251}
1252
1253//=======================================================================
c19dd45e 1254//function : UpdateDetromp
1255//purpose : For each interval on bissectrice defined by parameters
1256// test if the medium point is at a distance > offset
1257// in this case vertices corresponding to the extremities of the interval
1258// are ranked in the proofing.
1259// => If the same vertex appears in the proofing, the
1260// border of the zone of proximity is tangent to the offset .
1261//=======================================================================
1262
1263void BRepFill_OffsetWire::UpdateDetromp (BRepFill_DataMapOfOrientedShapeListOfShape& Detromp,
1264 const TopoDS_Shape& Shape1,
1265 const TopoDS_Shape& Shape2,
1266 const TopTools_SequenceOfShape& Vertices,
1267 const TColgp_SequenceOfPnt& Params,
1268 const Bisector_Bisec& Bisec,
1269 const Standard_Boolean SOnE,
1270 const Standard_Boolean EOnE,
1271 const BRepFill_TrimEdgeTool& Trim) const
1272{
c19dd45e 1273 Standard_Integer ii = 1;
1274 Standard_Real U1,U2;
1275 TopoDS_Vertex V1,V2;
1276
1277 Handle(Geom2d_Curve) Bis = Bisec.Value();
1278
1279 U1 = Bis->FirstParameter();
1280
1281 if (SOnE) {
1282 // the first point of the bissectrice is on the offset
1283 V1 = TopoDS::Vertex(Vertices.Value(ii));
1284 ii++;
1285 }
1286
1287 while (ii <= Vertices.Length()) {
1288 U2 = Params.Value(ii).X();
1289 V2 = TopoDS::Vertex(Vertices.Value(ii));
1290
a791eb69 1291 gp_Pnt2d P = Bis->Value((U2 + U1)*0.5);
1292 Standard_Boolean IsP_inside = Standard_True;
873c119f 1293 if ((myJoinType != GeomAbs_Intersection) || EOnE)
a791eb69 1294 IsP_inside = Trim.IsInside(P);
1295 if (!IsP_inside) {
c19dd45e 1296 if (!V1.IsNull()) {
1297 Detromp(Shape1).Append(V1);
1298 Detromp(Shape2).Append(V1);
1299 }
1300 Detromp(Shape1).Append(V2);
1301 Detromp(Shape2).Append(V2);
1302 }
1303 U1 = U2;
1304 V1 = V2;
1305 ii ++;
1306 }
1307
1308 // test medium point between the last parameter and the end of the bissectrice.
1309 U2 = Bis->LastParameter();
1310 if (!EOnE) {
1311 if (!Precision::IsInfinite(U2)) {
1312 gp_Pnt2d P = Bis->Value((U2 + U1)*0.5);
a791eb69 1313 Standard_Boolean IsP_inside = Standard_False;
1314 if (myJoinType == GeomAbs_Arc)
1315 IsP_inside = Trim.IsInside(P);
1316 if (!IsP_inside) {
873c119f 1317 if (!V1.IsNull()) {
1318 Detromp(Shape1).Append(V1);
1319 Detromp(Shape2).Append(V1);
1320 }
c19dd45e 1321 }
1322 }
1323 else {
1324 if (!V1.IsNull()) {
873c119f 1325 Detromp(Shape1).Append(V1);
1326 Detromp(Shape2).Append(V1);
c19dd45e 1327 }
1328 }
1329 }
873c119f 1330 //else if(myJoinType != GeomAbs_Arc)
1331 //{
1332 // if (!V1.IsNull()) {
1333 // Detromp(Shape1).Append(V1);
1334 // Detromp(Shape2).Append(V1);
1335 // }
1336 //}
c19dd45e 1337}
1338
1339//=======================================================================
7fd59977 1340//function : MakeWires
1341//purpose :
1342//=======================================================================
1343
1344void BRepFill_OffsetWire::MakeWires()
1345{
1346 //--------------------------------------------------------
0d969553 1347 // creation of a single list of created parallel edges.
7fd59977 1348 //--------------------------------------------------------
1349 TopTools_SequenceOfShape TheEdges;
1350 TopTools_ListOfShape TheWires;
1351 TopTools_ListIteratorOfListOfShape itl;
86b3805f
J
1352 //BRepFill_DataMapIteratorOfDataMapOfOrientedShapeListOfShape ite;
1353 TopTools_IndexedDataMapOfShapeListOfShape MVE;
1354 //TopTools_DataMapIteratorOfDataMapOfShapeListOfShape MVEit;
7fd59977 1355 TopoDS_Vertex V1,V2,VF,CV;
86b3805f 1356 Standard_Integer i;
7fd59977 1357
86b3805f
J
1358 for (i = 1; i <= myMap.Extent(); i++) {
1359 for (itl.Initialize(myMap(i)); itl.More(); itl.Next()) {
7fd59977 1360 const TopoDS_Edge& E = TopoDS::Edge(itl.Value());
1361 TopExp::Vertices (E,V1,V2);
1362 if (V1.IsSame(V2) && IsSmallClosedEdge(E, V1))
873c119f 1363 continue; //remove small closed edges
86b3805f 1364 if (!MVE.Contains(V1)) {
873c119f 1365 TopTools_ListOfShape empty;
1366 MVE.Add(V1,empty);
7fd59977 1367 }
86b3805f
J
1368 MVE.ChangeFromKey(V1).Append(E);
1369 if (!MVE.Contains(V2)) {
873c119f 1370 TopTools_ListOfShape empty;
1371 MVE.Add(V2,empty);
7fd59977 1372 }
86b3805f 1373 MVE.ChangeFromKey(V2).Append(E);
7fd59977 1374 }
1375 }
1376
1377 //--------------------------------------
0d969553 1378 // Creation of parallel wires.
7fd59977 1379 //--------------------------------------
1380 BRep_Builder B;
1381
873c119f 1382
1383 // Standard_Integer NbEdges;
1384 // Standard_Boolean NewWire = Standard_True;
1385 // Standard_Boolean AddEdge = Standard_False;
7fd59977 1386
1387 TopoDS_Wire NW;
1388 Standard_Boolean End;
1389 TopoDS_Edge CE;
1390
1391 while (!MVE.IsEmpty()) {
1392 B.MakeWire(NW);
1393
86b3805f
J
1394 //MVEit.Initialize(MVE);
1395 for (i = 1; i <= MVE.Extent(); i++)
1396 if(MVE(i).Extent() == 1)
1397 break;
7fd59977 1398
86b3805f
J
1399 //if(!MVEit.More()) MVEit.Initialize(MVE);
1400 if (i > MVE.Extent())
1401 i = 1;
7fd59977 1402
86b3805f
J
1403 CV = VF = TopoDS::Vertex(MVE.FindKey(i));
1404 CE = TopoDS::Edge(MVE(i).First());
7fd59977 1405 End = Standard_False;
1867dc32 1406 MVE.ChangeFromKey(CV).RemoveFirst();
1407
1408 if (myIsOpenResult && MVE.FindFromKey(CV).IsEmpty())
1409 {
1410 //MVE.UnBind(CV);
1411 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1412 TopTools_ListOfShape LastList;
1413 LastList.Append(MVE(MVE.Extent()));
1414 MVE.RemoveLast();
1415 if (MVE.FindIndex(CV) != 0)
1416 MVE.Substitute(MVE.FindIndex(CV), LastShape, LastList);
1417 }
1418
7fd59977 1419
873c119f 1420 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:59 2002 Begin
7fd59977 1421 Standard_Boolean isClosed = Standard_False;
873c119f 1422
1423 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:00 2002 End
7fd59977 1424
1425 while(!End) {
1426 //-------------------------------
0d969553 1427 // Construction of a wire.
7fd59977 1428 //-------------------------------
1429 TopExp::Vertices(CE,V1,V2);
1430 if (!CV.IsSame(V1)) CV = V1; else CV = V2;
1431
1432 B.Add (NW,CE);
1433
86b3805f 1434 if (VF.IsSame(CV) || !MVE.Contains(CV)) {
873c119f 1435 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:14 2002 Begin
1436 isClosed = VF.IsSame(CV);
1437 // Modified by Sergey KHROMOV - Thu Mar 14 11:30:15 2002 End
1438 End = Standard_True;
1439 //MVE.UnBind(VF);
86b3805f
J
1440 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1441 TopTools_ListOfShape LastList;
1442 LastList.Append(MVE(MVE.Extent()));
1443 MVE.RemoveLast();
1444 if (MVE.FindIndex(VF) != 0)
1445 MVE.Substitute(MVE.FindIndex(VF), LastShape, LastList);
7fd59977 1446 }
1447
1448 if (!End) {
873c119f 1449 if (MVE.FindFromKey(CV).Extent() > 2) {
1450 //cout <<"vertex on more that 2 edges in a face."<<endl;
1451 }
1452 for ( itl.Initialize(MVE.FindFromKey(CV)); itl.More(); itl.Next()) {
1453 if (itl.Value().IsSame(CE)) {
1454 MVE.ChangeFromKey(CV).Remove(itl);
1455 break;
1456 }
1457 }
1458 if (!MVE.FindFromKey(CV).IsEmpty()) {
1459 CE = TopoDS::Edge(MVE.FindFromKey(CV).First());
1460 MVE.ChangeFromKey(CV).RemoveFirst();
1461 }
1867dc32 1462 else if (myIsOpenResult)//CV was a vertex with one edge
1463 End = Standard_True;
1464
873c119f 1465 if (MVE.FindFromKey(CV).IsEmpty())
86b3805f
J
1466 {
1467 //MVE.UnBind(CV);
1468 TopoDS_Shape LastShape = MVE.FindKey(MVE.Extent());
1469 TopTools_ListOfShape LastList;
1470 LastList.Append(MVE(MVE.Extent()));
1471 MVE.RemoveLast();
1472 if (MVE.FindIndex(CV) != 0)
1473 MVE.Substitute(MVE.FindIndex(CV), LastShape, LastList);
1474 }
7fd59977 1475 }
1476 }
873c119f 1477 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:31 2002 Begin
1478 // NW.Closed(Standard_True);
7fd59977 1479 NW.Closed(isClosed);
873c119f 1480 // Modified by Sergey KHROMOV - Thu Mar 14 11:29:37 2002 End
7fd59977 1481 TheWires.Append(NW);
1482 }
1483
0d969553
Y
1484 // update myShape :
1485 // -- if only one wire : myShape is a Wire
1486 // -- if several wires : myShape is a Compound.
7fd59977 1487 if ( TheWires.Extent() == 1) {
1488 myShape = TheWires.First();
1489 }
1490 else {
1491 TopoDS_Compound R;
1492 B.MakeCompound(R);
1493 TopTools_ListIteratorOfListOfShape it(TheWires);
1494 for ( ; it.More(); it.Next()) {
1495 B.Add(R, it.Value());
1496 }
1497 myShape = R;
1498 }
1499
1500}
1501
1502//=======================================================================
1503//function : FixHoles
1504//purpose :
1505//=======================================================================
1506
1507void BRepFill_OffsetWire::FixHoles()
1508{
1509 TopTools_SequenceOfShape ClosedWires, UnclosedWires, IsolatedWires;
1510
1511 Standard_Real MaxTol = 0.;
1512 Standard_Integer i;
1513 BRep_Builder BB;
1514
1515 TopExp_Explorer Explo( mySpine, TopAbs_VERTEX );
1516 for (; Explo.More(); Explo.Next())
91bb31f3 1517 {
1518 const TopoDS_Vertex& aVertex = TopoDS::Vertex( Explo.Current() );
1519 Standard_Real Tol = BRep_Tool::Tolerance(aVertex);
1520 if (Tol > MaxTol)
1521 MaxTol = Tol;
1522 }
7fd59977 1523 MaxTol *= 100.;
1524
1525 Explo.Init( myShape, TopAbs_WIRE );
1526 for (; Explo.More(); Explo.Next())
91bb31f3 1527 {
1528 TopoDS_Shape aWire = Explo.Current();
1529 // Remove duplicated edges
1530 TopTools_DataMapOfShapeListOfShape EEmap;
1531 TopoDS_Iterator it( aWire );
1532 for (; it.More(); it.Next())
7fd59977 1533 {
91bb31f3 1534 const TopoDS_Shape& anEdge = it.Value();
1535 if (! EEmap.IsBound( anEdge ))
1536 {
1537 TopTools_ListOfShape LE;
1538 EEmap.Bind( anEdge, LE );
1539 }
7fd59977 1540 else
91bb31f3 1541 EEmap(anEdge).Append( anEdge );
7fd59977 1542 }
91bb31f3 1543 aWire.Free( Standard_True );
1544 TopTools_DataMapIteratorOfDataMapOfShapeListOfShape mapit( EEmap );
1545 for (; mapit.More(); mapit.Next())
1546 {
1547 const TopTools_ListOfShape& LE = mapit.Value();
1548 TopTools_ListIteratorOfListOfShape itl( LE );
1549 for (; itl.More(); itl.Next())
1550 BB.Remove( aWire, itl.Value() );
1551 }
1552 // Sorting
1553 if (aWire.Closed())
1554 ClosedWires.Append( aWire );
1555 else
1556 UnclosedWires.Append( aWire );
1557 }
1558
7fd59977 1559 while (!UnclosedWires.IsEmpty())
91bb31f3 1560 {
1561 TopoDS_Wire& Base = TopoDS::Wire( UnclosedWires(1) );
1562 TopoDS_Vertex Vf, Vl;
1563 TopExp::Vertices( Base, Vf, Vl );
1564 if(Vf.IsNull() || Vl.IsNull())
873c119f 1565 {
91bb31f3 1566 Standard_Failure::Raise("BRepFill_OffsetWire::FixHoles(): Wrong wire.");
873c119f 1567#ifdef OCCT_DEBUG
1568 BRepTools::Write(Base, "Base");
1569#endif
1570 }
91bb31f3 1571 gp_Pnt Pf, Pl;
1572 Pf = BRep_Tool::Pnt(Vf);
1573 Pl = BRep_Tool::Pnt(Vl);
1574 Standard_Real DistF = RealLast(), DistL = RealLast();
1575 Standard_Integer IndexF = 1, IndexL = 1;
1576 Standard_Boolean IsFirstF = Standard_False, IsFirstL = Standard_False;
1577 for (Standard_Integer i = 2; i <= UnclosedWires.Length(); i++)
7fd59977 1578 {
91bb31f3 1579 TopoDS_Wire aWire = TopoDS::Wire( UnclosedWires(i) );
1580 TopoDS_Vertex V1, V2;
1581 TopExp::Vertices( aWire, V1, V2 );
1582
1583 if(V1.IsNull() || V2.IsNull())
873c119f 1584 {
ab87e6fc 1585 Standard_Failure::Raise("BRepFill_OffsetWire::FixHoles(): Wrong wire.");
873c119f 1586#ifdef OCCT_DEBUG
1587 BRepTools::Write(Base, "Base");
1588 char name[128];
1589 sprintf(name,"Wire_%d",i);
1590 BRepTools::Write(aWire, name);
1591#endif
1592 }
91bb31f3 1593
1594 gp_Pnt P1, P2;
1595 P1 = BRep_Tool::Pnt(V1);
1596 P2 = BRep_Tool::Pnt(V2);
1597 Standard_Real dist = Pf.Distance( P1 );
1598 if (dist < DistF)
1599 {
1600 DistF = dist;
1601 IndexF = i;
1602 IsFirstF = Standard_True;
1603 }
1604 dist = Pf.Distance( P2 );
1605 if (dist < DistF)
1606 {
1607 DistF = dist;
1608 IndexF = i;
1609 IsFirstF = Standard_False;
1610 }
1611 dist = Pl.Distance( P1 );
1612 if (dist < DistL)
1613 {
1614 DistL = dist;
1615 IndexL = i;
1616 IsFirstL = Standard_True;
1617 }
1618 dist = Pl.Distance( P2 );
1619 if (dist < DistL)
1620 {
1621 DistL = dist;
1622 IndexL = i;
1623 IsFirstL = Standard_False;
1624 }
1625 }
1626 TopoDS_Wire theWire;
1627 TopoDS_Edge theEdge;
1628 TopoDS_Vertex theVertex;
1629 Standard_Real CommonTol;
1630 Standard_Boolean TryToClose = Standard_True;
1631 if (DistF <= MaxTol && DistL <= MaxTol && IndexF == IndexL && IsFirstF == IsFirstL)
1632 {
1633 if (DistF < DistL)
1634 {
1635 DistL = RealLast();
1636 IndexL++;
1637 }
1638 else
1639 {
1640 DistF = RealLast();
1641 IndexF++;
1642 }
1643 TryToClose = Standard_False;
1644 }
1645 if (DistF <= MaxTol)
1646 {
1647 theWire = TopoDS::Wire( UnclosedWires(IndexF) );
1648 TopoDS_Vertex V1, V2;
1649 TopExp::Vertices( theWire, V1, V2 );
1650 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1651 TopExp::MapShapesAndAncestors( theWire, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1652 theEdge = (IsFirstF)? TopoDS::Edge(VEmap.FindFromKey( V1 ).First()) :
1653 TopoDS::Edge(VEmap.FindFromKey( V2 ).First());
1654 TopoDS_Iterator it( theWire );
1655 for (; it.More(); it.Next())
1656 {
1657 TopoDS_Edge anEdge = TopoDS::Edge( it.Value() );
1658 if (IsFirstF) anEdge.Reverse();
1659 if (!anEdge.IsSame( theEdge ))
1660 BB.Add( Base, anEdge );
1661 }
1662 theVertex = (IsFirstF)? V1 : V2;
1663 CommonTol = Max( BRep_Tool::Tolerance(Vf), BRep_Tool::Tolerance(theVertex) );
1664 if (DistF <= CommonTol)
1665 {
1666 theEdge.Free( Standard_True );
1667 Vf.Orientation( theVertex.Orientation() );
1668 BB.Remove( theEdge, theVertex );
1669 BB.Add( theEdge, Vf );
1670 BB.UpdateVertex( Vf, CommonTol );
1671 if (IsFirstF) theEdge.Reverse();
1672 BB.Add( Base, theEdge );
1673 }
1674 else
1675 {
1676 if (IsFirstF) theEdge.Reverse();
1677 BB.Add( Base, theEdge );
1678 // Creating new edge from theVertex to Vf
1679 TopoDS_Edge NewEdge = BRepLib_MakeEdge( theVertex, Vf );
1680 BB.Add( Base, NewEdge );
1681 }
1682 }
1683 if (DistL <= MaxTol && IndexL != IndexF)
1684 {
1685 theWire = TopoDS::Wire( UnclosedWires(IndexL) );
1686 TopoDS_Vertex V1, V2;
1687 TopExp::Vertices( theWire, V1, V2 );
1688 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1689 TopExp::MapShapesAndAncestors( theWire, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1690 theEdge = (IsFirstL)? TopoDS::Edge(VEmap.FindFromKey( V1 ).First()) :
1691 TopoDS::Edge(VEmap.FindFromKey( V2 ).First());
1692 TopoDS_Iterator it( theWire );
1693 for (; it.More(); it.Next())
1694 {
1695 TopoDS_Edge anEdge = TopoDS::Edge( it.Value() );
1696 if (!IsFirstL) anEdge.Reverse();
1697 if (!anEdge.IsSame( theEdge ))
1698 BB.Add( Base, anEdge );
1699 }
1700 theVertex = (IsFirstL)? V1 : V2;
1701 CommonTol = Max( BRep_Tool::Tolerance(Vl), BRep_Tool::Tolerance(theVertex) );
1702 if (DistL <= CommonTol)
1703 {
1704 theEdge.Free( Standard_True );
1705 Vl.Orientation( theVertex.Orientation() );
1706 BB.Remove( theEdge, theVertex );
1707 BB.Add( theEdge, Vl );
1708 BB.UpdateVertex( Vl, CommonTol );
1709 if (!IsFirstL) theEdge.Reverse();
1710 BB.Add( Base, theEdge );
1711 }
1712 else
1713 {
1714 if (!IsFirstL) theEdge.Reverse();
1715 BB.Add( Base, theEdge );
1716 // Creating new edge from Vl to theVertex
1717 TopoDS_Edge NewEdge = BRepLib_MakeEdge( Vl, theVertex );
1718 BB.Add( Base, NewEdge );
1719 }
1720 }
1721 // Check if it is possible to close resulting wire
1722 if (TryToClose)
1723 {
1724 TopExp::Vertices( Base, Vf, Vl );
1725 CommonTol = Max( BRep_Tool::Tolerance(Vf), BRep_Tool::Tolerance(Vl) );
1726 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
1727 TopExp::MapShapesAndAncestors( Base, TopAbs_VERTEX, TopAbs_EDGE, VEmap );
1728 TopoDS_Edge Efirst, Elast;
1729 Efirst = TopoDS::Edge(VEmap.FindFromKey( Vf ).First());
1730 Elast = TopoDS::Edge(VEmap.FindFromKey( Vl ).First());
7fd59977 1731 Pf = BRep_Tool::Pnt(Vf);
1732 Pl = BRep_Tool::Pnt(Vl);
91bb31f3 1733 Standard_Real Dist = Pf.Distance(Pl);
1734 if (Dist <= CommonTol)
1735 {
1736 Elast.Free( Standard_True );
1737 Vf.Orientation( Vl.Orientation() );
1738 BB.Remove( Elast, Vl );
1739 BB.Add( Elast, Vf );
1740 BB.UpdateVertex( Vf, CommonTol );
1741 Base.Closed( Standard_True );
1742 }
1743 else if (Dist <= MaxTol)
1744 {
1745 // Creating new edge from Vl to Vf
1746 TopoDS_Edge NewEdge = BRepLib_MakeEdge( Vf, Vl );
1747 BB.Add( Base, NewEdge );
1748 Base.Closed( Standard_True );
1749 }
7fd59977 1750 }
91bb31f3 1751 // Updating sequences ClosedWires and UnclosedWires
1752 if (DistF <= MaxTol)
1753 UnclosedWires.Remove( IndexF );
1754 if (DistL <= MaxTol && IndexL != IndexF)
7fd59977 1755 {
91bb31f3 1756 if (DistF <= MaxTol && IndexL > IndexF)
1757 IndexL--;
1758 UnclosedWires.Remove( IndexL );
7fd59977 1759 }
91bb31f3 1760 if (Base.Closed())
7fd59977 1761 {
91bb31f3 1762 ClosedWires.Append( Base );
1763 UnclosedWires.Remove( 1 );
7fd59977 1764 }
91bb31f3 1765 else if (DistF > MaxTol && DistL > MaxTol)
1766 {
1767 IsolatedWires.Append( Base );
1768 UnclosedWires.Remove( 1 );
1769 }
1770 }
1771
1772 // Updating myShape
1773 if (ClosedWires.Length() + IsolatedWires.Length() == 1)
1774 {
1775 if (!ClosedWires.IsEmpty())
1776 myShape = ClosedWires.First();
1777 else
1778 myShape = IsolatedWires.First();
1779 }
1780 else
1781 {
1782 TopoDS_Compound R;
1783 BB.MakeCompound( R );
1784 for (i = 1; i <= ClosedWires.Length(); i++)
1785 BB.Add( R, ClosedWires(i) );
1786 for (i = 1; i <= IsolatedWires.Length(); i++)
1787 BB.Add( R, IsolatedWires(i) );
1788 myShape = R;
1789 }
7fd59977 1790}
1791
1792//=======================================================================
1793//function : CutEdge
0d969553
Y
1794//purpose : Cut edge at the extrema of curvatures and points of inflexion.
1795// So, closed circles are cut in two.
1796// If <Cuts> is empty, the edge is not modified.
1797// The first and the last vertex of the initial edge
1798// belong to the first and the last parts respectively.
7fd59977 1799//=======================================================================
1800Standard_Integer CutEdge (const TopoDS_Edge& E,
873c119f 1801 const TopoDS_Face& F,
1802 Standard_Integer ForceCut,
1803 TopTools_ListOfShape& Cuts)
7fd59977 1804{
1805 Cuts.Clear();
1806 MAT2d_CutCurve Cuter;
1807 TColGeom2d_SequenceOfCurve theCurves;
1808 Standard_Real f,l;
1809 Handle(Geom2d_Curve) C2d;
1810 Handle(Geom2d_TrimmedCurve) CT2d;
873c119f 1811 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:25 2002 Begin
7fd59977 1812 Standard_Real aTol = BRep_Tool::Tolerance(E);
1813 Handle(Geom_Curve) aC;
873c119f 1814 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:25 2002 End
7fd59977 1815
1816 TopoDS_Vertex V1,V2,VF,VL;
1817 TopExp::Vertices (E,V1,V2);
1818 BRep_Builder B;
1819
1820 C2d = BRep_Tool::CurveOnSurface (E,F,f,l);
873c119f 1821 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:54 2002 Begin
7fd59977 1822 aC = BRep_Tool::Curve(E,f,l);
873c119f 1823 // Modified by Sergey KHROMOV - Wed Mar 6 17:36:54 2002 End
7fd59977 1824 CT2d = new Geom2d_TrimmedCurve(C2d,f,l);
1825 //if (E.Orientation() == TopAbs_REVERSED) CT2d->Reverse();
1826
1827 if (CT2d->BasisCurve()->IsKind(STANDARD_TYPE(Geom2d_Circle)) &&
873c119f 1828 ( Abs(f-l) >= M_PI) ) {
1829 return 0;
7fd59977 1830 }
1831
1832 //-------------------------
0d969553 1833 // Cut curve.
7fd59977 1834 //-------------------------
1835 Cuter.Perform(CT2d);
1836
873c119f 1837 // Modified by Sergey KHROMOV - Thu Nov 16 17:28:29 2000 Begin
7fd59977 1838 if (ForceCut == 0) {
1839 if (Cuter.UnModified()) {
873c119f 1840 //-----------------------------
1841 // edge not modified => return.
1842 //-----------------------------
7fd59977 1843 return 0;
1844 } else {
1845 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
873c119f 1846 theCurves.Append(Cuter.Value(k));
7fd59977 1847 }
1848 } else if (ForceCut == 1) {
1849 if (Cuter.UnModified()) {
1850 CutCurve (CT2d, 2, theCurves);
1851 } else {
1852 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
873c119f 1853
1854 theCurves.Append(Cuter.Value(k));
7fd59977 1855 }
1856 } else if (ForceCut == 2) {
1857 if (Cuter.UnModified()) {
1858 CutCurve (CT2d, 3, theCurves);
1859 } else {
1860 if (Cuter.NbCurves() == 2) {
873c119f 1861
1862 Handle(Geom2d_TrimmedCurve)CC = Cuter.Value(1);
1863
1864 if (CC->LastParameter() > (l+f)/2.) {
1865 CutCurve (CC, 2, theCurves);
1866 theCurves.Append(Cuter.Value(2));
1867 } else {
1868 theCurves.Append(CC);
1869 CutCurve (Cuter.Value(2), 2, theCurves);
1870 }
7fd59977 1871 } else {
873c119f 1872 for (Standard_Integer k = 1; k <= Cuter.NbCurves(); k++)
1873 theCurves.Append(Cuter.Value(k));
7fd59977 1874 }
1875 }
1876 }
873c119f 1877
1878 // Modified by Sergey KHROMOV - Thu Nov 16 17:28:37 2000 End
7fd59977 1879
1880 //--------------------------------------
0d969553 1881 // Creation of cut edges.
7fd59977 1882 //--------------------------------------
1883 VF = V1;
1884
1885 for (Standard_Integer k = 1; k <= theCurves.Length(); k++) {
1886
1887 Handle(Geom2d_TrimmedCurve)CC = Handle(Geom2d_TrimmedCurve)::DownCast(theCurves.Value(k));
1888
1889 if (k == theCurves.Length()) {VL = V2;}
1890 else {
873c119f 1891 // Modified by Sergey KHROMOV - Wed Mar 6 17:38:02 2002 Begin
7fd59977 1892 gp_Pnt P = aC->Value(CC->LastParameter());
1893
1894 VL = BRepLib_MakeVertex(P);
1895 B.UpdateVertex(VL, aTol);
873c119f 1896 // Modified by Sergey KHROMOV - Wed Mar 6 17:38:05 2002 End
7fd59977 1897 }
1898 TopoDS_Shape aLocalShape = E.EmptyCopied();
1899 TopoDS_Edge NE = TopoDS::Edge(aLocalShape);
873c119f 1900 // TopoDS_Edge NE = TopoDS::Edge(E.EmptyCopied());
7fd59977 1901 NE.Orientation(TopAbs_FORWARD);
1902 B.Add (NE,VF.Oriented(TopAbs_FORWARD));
1903 B.Add (NE,VL.Oriented(TopAbs_REVERSED));
1904 B.Range(NE,CC->FirstParameter(),CC->LastParameter());
1905 Cuts.Append(NE.Oriented(E.Orientation()));
1906 VF = VL;
1907 }
1908
1909 return theCurves.Length();
1910}
1911
1912// Modified by Sergey KHROMOV - Thu Nov 16 17:27:56 2000 Begin
1913//=======================================================================
1914//function : CutCurve
1915//purpose :
1916//=======================================================================
1917
1918void CutCurve (const Handle(Geom2d_TrimmedCurve)& C,
873c119f 1919 const Standard_Integer nbParts,
1920 TColGeom2d_SequenceOfCurve& theCurves)
7fd59977 1921{
1922 Handle(Geom2d_TrimmedCurve) TrimC;
1923 Standard_Real UF,UL,UC;
1924 Standard_Real Step;
1925 gp_Pnt2d PF,PL,PC;
1926 Standard_Real PTol = Precision::PConfusion()*10;
1927 Standard_Real Tol = Precision::Confusion()*10;
1928 Standard_Boolean YaCut = Standard_False;
1929
1930 UF = C->FirstParameter();
1931 UL = C->LastParameter ();
1932 PF = C->Value(UF);
1933 PL = C->Value(UL);
1934
1935 Step = (UL - UF)/nbParts;
1936
1937 for (Standard_Integer i = 1; i < nbParts; i++) {
1938
1939 UC = UF + i*Step;
1940 PC = C->Value(UC);
1941
1942 if (UC - UF > PTol && PC.Distance(PF) > Tol) {
1943 if ( UL - UC < PTol || PL.Distance(PC) < Tol)
873c119f 1944 continue;
7fd59977 1945
1946 TrimC = new Geom2d_TrimmedCurve(C,UF,UC);
1947 theCurves.Append(TrimC);
1948 UF = UC;
1949 PF = PC;
1950 YaCut = Standard_True;
1951 }
1952 }
1953 if (YaCut) {
1954 TrimC = new Geom2d_TrimmedCurve(C,UF,UL);
1955 theCurves.Append(TrimC);
1956 } else
1957 theCurves.Append(C);
1958}
1959// Modified by Sergey KHROMOV - Thu Nov 16 17:28:13 2000 End
1960
1961//=======================================================================
1962//function : MakeCircle
1963//purpose :
1964//=======================================================================
1965
1966void MakeCircle (const TopoDS_Edge& E,
873c119f 1967 const TopoDS_Vertex& V,
1968 const TopoDS_Face& F,
1969 const Standard_Real Offset,
1970 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
1971 const Handle(Geom_Plane)& RefPlane)
7fd59977 1972{
0d969553 1973 // evaluate the Axis of the Circle.
7fd59977 1974 Standard_Real f,l;
1975 Handle(Geom2d_Curve) GC = BRep_Tool::CurveOnSurface(E,F,f,l);
1976 gp_Vec2d DX;
1977 gp_Pnt2d P;
1978
1979 if (E.Orientation() == TopAbs_FORWARD) {
1980 GC->D1(l,P,DX);
1981 DX.Reverse();
1982 }
1983 else GC->D1(f,P,DX);
1984
1985 gp_Ax2d Axis(P,gp_Dir2d(DX));
1986 Handle(Geom2d_Circle) Circ
1987 = new Geom2d_Circle(Axis, Abs(Offset), Offset < 0.);
1988
1989 // Bind the edges in my Map.
1990 TopoDS_Edge OE = BRepLib_MakeEdge(Circ, RefPlane);
1991 TopTools_ListOfShape LL;
1992
1993 LL.Append(OE);
86b3805f 1994 Map.Add(V,LL);
7fd59977 1995
873c119f 1996#ifdef OCCT_DEBUG
7fd59977 1997#ifdef DRAW
1998 if ( AffichGeom && !OE.IsNull()) {
1896126e 1999 char name[256];
7fd59977 2000 sprintf(name,"OFFSET_%d",++NbOFFSET);
2001 DBRep::Set(name,OE);
2002 }
2003#endif
873c119f 2004#endif
7fd59977 2005}
2006
2007//=======================================================================
2008//function : MakeOffset
2009//purpose :
2010//=======================================================================
2011
2012void MakeOffset (const TopoDS_Edge& E,
873c119f 2013 const TopoDS_Face& F,
2014 const Standard_Real Offset,
2015 BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Map,
2016 const Handle(Geom_Plane)& RefPlane,
2017 const Standard_Boolean IsOpenResult,
c7806cb6 2018 const GeomAbs_JoinType theJoinType,
873c119f 2019 const TopoDS_Vertex * Ends)
7fd59977 2020{
2021 Standard_Real f,l;
2022 Standard_Real anOffset = Offset;
2023
2024 if (E.Orientation() == TopAbs_REVERSED) anOffset *= -1;
2025
2026 Handle(Geom2d_Curve) G2d = BRep_Tool::CurveOnSurface(E,F,f,l);
2027 Handle(Geom2d_Curve) G2dOC;
2028
6a442250 2029 Standard_Boolean ToExtendFirstPar = Standard_True;
2030 Standard_Boolean ToExtendLastPar = Standard_True;
2031 if (IsOpenResult)
2032 {
2033 TopoDS_Vertex V1, V2;
2034 TopExp::Vertices(E, V1, V2);
2035 if (V1.IsSame(Ends[0]) ||
873c119f 2036 V1.IsSame(Ends[1]))
6a442250 2037 ToExtendFirstPar = Standard_False;
2038 if (V2.IsSame(Ends[0]) ||
873c119f 2039 V2.IsSame(Ends[1]))
6a442250 2040 ToExtendLastPar = Standard_False;
2041 }
2042
7fd59977 2043 Geom2dAdaptor_Curve AC(G2d,f,l);
2044 if ( AC.GetType() == GeomAbs_Circle) {
0d969553
Y
2045 // if the offset is greater otr equal to the radius and the side of the
2046 // concavity of the circle => edge null.
7fd59977 2047 gp_Circ2d C1(AC.Circle());
7fd59977 2048 gp_Ax22d axes( C1.Axis());
2049 gp_Dir2d Xd = axes.XDirection();
2050 gp_Dir2d Yd = axes.YDirection();
2051 Standard_Real Crossed = Xd.X()*Yd.Y()-Xd.Y()*Yd.X();
2052 Standard_Real Signe = ( Crossed > 0.) ? 1. : -1.;
2053
9ffd84ad 2054 if (anOffset*Signe < AC.Circle().Radius() - Precision::Confusion()) {
0d969553 2055
7fd59977 2056 Handle(Geom2dAdaptor_HCurve) AHC =
873c119f 2057 new Geom2dAdaptor_HCurve(G2d);
7fd59977 2058 Adaptor3d_OffsetCurve Off(AHC,-anOffset);
2059 Handle(Geom2d_Circle) CC = new Geom2d_Circle(Off.Circle());
2060
c6541a0c 2061 Standard_Real Delta = 2*M_PI - l + f;
c7806cb6 2062 if (theJoinType == GeomAbs_Arc)
2063 {
873c119f 2064 if (ToExtendFirstPar)
2065 f -= 0.2*Delta;
2066 if (ToExtendLastPar)
2067 l += 0.2*Delta;
c7806cb6 2068 }
2069 else //GeomAbs_Intersection
2070 {
2071 if (ToExtendFirstPar && ToExtendLastPar)
2072 {
2073 Standard_Real old_l = l;
2074 f = old_l + Delta/2.;
2075 l = f + 2*M_PI;
2076 }
2077 else if (ToExtendFirstPar)
2078 {
2079 f = l;
2080 l = f + 2*M_PI;
2081 }
2082 else if (ToExtendLastPar)
2083 {
2084 l = f + 2*M_PI;
2085 }
2086 }
7fd59977 2087 G2dOC = new Geom2d_TrimmedCurve(CC,f,l);
2088 }
2089 }
2090 else if (AC.GetType() == GeomAbs_Line) {
2091 Handle(Geom2dAdaptor_HCurve) AHC =
2092 new Geom2dAdaptor_HCurve(G2d);
2093 Adaptor3d_OffsetCurve Off(AHC,anOffset);
2094 Handle(Geom2d_Line) CC = new Geom2d_Line(Off.Line());
2095 Standard_Real Delta = (l - f);
6a442250 2096 if (ToExtendFirstPar)
c7806cb6 2097 {
2098 if (theJoinType == GeomAbs_Arc)
873c119f 2099 f -= Delta;
c7806cb6 2100 else //GeomAbs_Intersection
2101 f = -Precision::Infinite();
2102 }
6a442250 2103 if (ToExtendLastPar)
c7806cb6 2104 {
2105 if (theJoinType == GeomAbs_Arc)
873c119f 2106 l += Delta;
c7806cb6 2107 else //GeomAbs_Intersection
2108 l = Precision::Infinite();
2109 }
7fd59977 2110 G2dOC = new Geom2d_TrimmedCurve(CC,f,l);
2111 }
2112 else {
2113
2114 anOffset = -anOffset;
2115 Handle(Geom2d_TrimmedCurve) G2dT = new Geom2d_TrimmedCurve(G2d,f,l);
2116 G2dOC = new Geom2d_OffsetCurve( G2dT, anOffset);
2117
2118 }
2119
2120 // Bind the edges in my Map.
2121 if (!G2dOC.IsNull()) {
2122 TopoDS_Edge OE = BRepLib_MakeEdge(G2dOC, RefPlane);
2123 OE.Orientation(E.Orientation());
2124 TopTools_ListOfShape LL;
2125 LL.Append(OE);
86b3805f 2126 Map.Add(E,LL);
7fd59977 2127
873c119f 2128#ifdef OCCT_DEBUG
7fd59977 2129#ifdef DRAW
2130 if (AffichGeom && !OE.IsNull()) {
1896126e 2131 char name[256];
7fd59977 2132 sprintf(name,"OFFSET_%d",++NbOFFSET);
2133 DBRep::Set(name,OE);
873c119f 2134 //Standard_Real ii = 0;
7fd59977 2135 }
2136#endif
873c119f 2137#endif
2138
7fd59977 2139 }
2140}
2141
7fd59977 2142
2143//=======================================================================
2144//function : VertexFromNode
2145//purpose :
2146//=======================================================================
2147
2148Standard_Boolean VertexFromNode (const Handle(MAT_Node)& aNode,
873c119f 2149 const Standard_Real Offset,
2150 gp_Pnt2d& PN,
2151 BRepFill_DataMapOfNodeShape& MapNodeVertex,
2152 TopoDS_Vertex& VN)
7fd59977 2153{
2154 Standard_Boolean Status;
2155 Standard_Real Tol = Precision::Confusion();
2156 BRep_Builder B;
2157
2158 if (!aNode->Infinite() && Abs(aNode->Distance()-Offset) < Tol) {
2159 //------------------------------------------------
0d969553 2160 // the Node gives a vertex on the offset
7fd59977 2161 //------------------------------------------------
2162 if (MapNodeVertex.IsBound(aNode)) {
2163 VN = TopoDS::Vertex(MapNodeVertex(aNode));
2164 }
2165 else {
2166 gp_Pnt P(PN.X(),PN.Y(),0.);
2167 B.MakeVertex (VN);
2168 B.UpdateVertex(VN,P, Precision::Confusion());
2169 MapNodeVertex.Bind(aNode,VN);
2170 }
2171 Status = Standard_True;
2172 }
2173 else Status = Standard_False;
2174
2175 return Status;
2176}
2177
2178
2179//=======================================================================
2180//function : StoreInMap
2181//purpose :
2182//=======================================================================
2183
2184void StoreInMap (const TopoDS_Shape& V1,
873c119f 2185 const TopoDS_Shape& V2,
2186 TopTools_IndexedDataMapOfShapeShape& MapVV)
7fd59977 2187{
2188 TopoDS_Shape OldV = V1, NewV = V2;
2189 Standard_Integer i;
2190
2191 if (MapVV.Contains(V2))
2192 NewV = MapVV.FindFromKey(V2);
2193
2194 if (MapVV.Contains(V1))
2195 MapVV.ChangeFromKey(V1) = NewV;
2196
2197 for (i = 1; i <= MapVV.Extent(); i++)
2198 if (MapVV(i).IsSame(V1))
2199 MapVV(i) = NewV;
2200
2201 MapVV.Add(V1, NewV);
2202}
2203
2204//=======================================================================
2205//function : TrimEdge
2206//purpose :
2207//=======================================================================
2208
2209void TrimEdge (const TopoDS_Edge& E,
e11c1bc4 2210 const TopoDS_Shape& ProE,
2211 const TopoDS_Face& AllSpine,
7fd59977 2212 const TopTools_ListOfShape& Detromp,
6a442250 2213 TopTools_SequenceOfShape& TheVer,
2214 TColStd_SequenceOfReal& ThePar,
2215 TopTools_SequenceOfShape& S,
2216 TopTools_IndexedDataMapOfShapeShape& MapVV,
2217 const Standard_Integer IndOfE)
7fd59977 2218{
2219 Standard_Boolean Change = Standard_True;
2220 BRep_Builder TheBuilder;
2221 S.Clear();
2222
2223 //-----------------------------------------------------------
0d969553 2224 // Parse two sequences depending on the parameter on the edge.
7fd59977 2225 //-----------------------------------------------------------
2226 while (Change) {
2227 Change = Standard_False;
2228 for (Standard_Integer i = 1; i < ThePar.Length(); i++) {
2229 if (ThePar.Value(i) > ThePar.Value(i+1)) {
873c119f 2230 ThePar.Exchange(i,i+1);
2231 TheVer.Exchange(i,i+1);
2232 Change = Standard_True;
7fd59977 2233 }
2234 }
2235 }
2236
2237 //----------------------------------------------------------
0d969553 2238 // If a vertex is not in the proofing, it is eliminated.
7fd59977 2239 //----------------------------------------------------------
2240 if (!BRep_Tool::Degenerated(E)) {
2241 for (Standard_Integer k = 1; k <= TheVer.Length(); k ++) {
2242 if ( DoubleOrNotInside (Detromp,
873c119f 2243 TopoDS::Vertex(TheVer.Value(k)))) {
2244 TheVer.Remove(k);
2245 ThePar.Remove(k);
2246 k--;
7fd59977 2247 }
2248 }
2249 }
2250
2251 //----------------------------------------------------------
0d969553
Y
2252 // If a vertex_double appears twice in the proofing
2253 // the vertex is removed.
2254 // otherwise preserve only one of its representations.
7fd59977 2255 //----------------------------------------------------------
2256 if (!BRep_Tool::Degenerated(E)) {
94f71cad 2257 Standard_Real aParTol = 2.0 * Precision::PConfusion();
7fd59977 2258 for (Standard_Integer k = 1; k < TheVer.Length(); k ++) {
2259 if (TheVer.Value(k).IsSame(TheVer.Value(k+1)) ||
94f71cad 2260 Abs(ThePar.Value(k)-ThePar.Value(k+1)) <= aParTol) {
873c119f 2261
2262 if(k+1 == TheVer.Length()) {
2263 StoreInMap(TheVer(k), TheVer(k+1), MapVV);
2264 TheVer.Remove(k);
2265 ThePar.Remove(k);
2266 }
2267 else {
2268 StoreInMap(TheVer(k+1), TheVer(k), MapVV);
2269 TheVer.Remove(k+1);
2270 ThePar.Remove(k+1);
2271 }
2272 /*
2273 if ( DoubleOrNotInside (Detromp,
2274 TopoDS::Vertex(TheVer.Value(k)))) {
2275 TheVer.Remove(k);
2276 ThePar.Remove(k);
2277 k--;
2278 }
2279 */
2280 k--;
7fd59977 2281 }
2282 }
2283 }
2284 //-----------------------------------------------------------
0d969553
Y
2285 // Creation of edges.
2286 // the number of vertices should be even. The created edges
2287 // go from a vertex with uneven index i to vertex i+1;
7fd59977 2288 //-----------------------------------------------------------
6a442250 2289 if (IndOfE == 1 || IndOfE == -1) //open result and extreme edges of result
2290 {
7fd59977 2291 TopoDS_Shape aLocalShape = E.EmptyCopied();
2292 TopoDS_Edge NewEdge = TopoDS::Edge(aLocalShape);
6a442250 2293 TopoDS_Vertex V1, V2;
2294 TopExp::Vertices(E, V1, V2);
2295 Standard_Real fpar, lpar;
e11c1bc4 2296 Handle(Geom_Surface) aPlane;
2297 TopLoc_Location aLoc;
2298 Handle(Geom2d_Curve) PCurve;
2299 BRep_Tool::CurveOnSurface(E, PCurve, aPlane, aLoc, fpar, lpar);
2300 //BRep_Tool::Range(E, fpar, lpar);
2301
2302 Standard_Real TrPar1, TrPar2;
2303 Standard_Boolean ToTrimAsOrigin = IsInnerEdge(ProE, AllSpine, TrPar1, TrPar2);
2304
6a442250 2305 if (IndOfE == 1) //first edge of open wire
2306 {
2307 if (NewEdge.Orientation() == TopAbs_FORWARD)
2308 {
e11c1bc4 2309 if (ToTrimAsOrigin)
2310 {
2311 fpar = TrPar1;
2312 gp_Pnt2d TrPnt2d = PCurve->Value(fpar);
2313 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2314 V1 = BRepLib_MakeVertex(TrPnt);
2315 }
6a442250 2316 TheBuilder.Add(NewEdge, V1.Oriented(TopAbs_FORWARD));
2317 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_REVERSED));
2318 TheBuilder.Range(NewEdge, fpar, ThePar.First());
2319 }
2320 else
2321 {
e11c1bc4 2322 if (ToTrimAsOrigin)
2323 {
2324 lpar = TrPar2;
2325 gp_Pnt2d TrPnt2d = PCurve->Value(lpar);
2326 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2327 V2 = BRepLib_MakeVertex(TrPnt);
2328 }
6a442250 2329 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_REVERSED));
2330 TheBuilder.Add(NewEdge, V2.Oriented(TopAbs_FORWARD));
2331 TheBuilder.Range(NewEdge, ThePar.First(), lpar);
2332 }
7fd59977 2333 }
6a442250 2334 else //last edge of open wire
2335 {
2336 if (NewEdge.Orientation() == TopAbs_FORWARD)
2337 {
e11c1bc4 2338 if (ToTrimAsOrigin)
2339 {
2340 lpar = TrPar2;
2341 gp_Pnt2d TrPnt2d = PCurve->Value(lpar);
2342 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2343 V2 = BRepLib_MakeVertex(TrPnt);
2344 }
6a442250 2345 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_FORWARD));
2346 TheBuilder.Add(NewEdge, V2.Oriented(TopAbs_REVERSED));
2347 TheBuilder.Range(NewEdge, ThePar.First(), lpar);
2348 }
2349 else
2350 {
e11c1bc4 2351 if (ToTrimAsOrigin)
2352 {
2353 fpar = TrPar1;
2354 gp_Pnt2d TrPnt2d = PCurve->Value(fpar);
2355 gp_Pnt TrPnt(TrPnt2d.X(), TrPnt2d.Y(), 0.);
2356 V1 = BRepLib_MakeVertex(TrPnt);
2357 }
6a442250 2358 TheBuilder.Add(NewEdge, V1.Oriented(TopAbs_REVERSED));
2359 TheBuilder.Add(NewEdge, TheVer.First().Oriented(TopAbs_FORWARD));
2360 TheBuilder.Range(NewEdge, fpar, ThePar.First());
2361 }
7fd59977 2362 }
6a442250 2363 S.Append(NewEdge);
2364 }
2365 else
2366 {
2367 for (Standard_Integer k = 1; k < TheVer.Length(); k = k+2) {
2368 TopoDS_Shape aLocalShape = E.EmptyCopied();
2369 TopoDS_Edge NewEdge = TopoDS::Edge(aLocalShape);
2370 // TopoDS_Edge NewEdge = TopoDS::Edge(E.EmptyCopied());
2371
2372 if (NewEdge.Orientation() == TopAbs_REVERSED) {
2373 TheBuilder.Add (NewEdge,TheVer.Value(k) .Oriented(TopAbs_REVERSED));
2374 TheBuilder.Add (NewEdge,TheVer.Value(k+1).Oriented(TopAbs_FORWARD));
2375 }
2376 else {
2377 TheBuilder.Add (NewEdge,TheVer.Value(k) .Oriented(TopAbs_FORWARD));
2378 TheBuilder.Add (NewEdge,TheVer.Value(k+1).Oriented(TopAbs_REVERSED));
2379 }
2380
2381
2382 TheBuilder.Range(NewEdge,ThePar.Value(k),ThePar.Value(k+1));
2383
873c119f 2384#ifdef OCCT_DEBUG
7fd59977 2385#ifdef DRAW
6a442250 2386 if ( AffichEdge) {
2387 char name[256];
2388 sprintf(name,"TRIMEDGE_%d",NbTRIMEDGES);
2389 DBRep::Set(name,NewEdge);
2390 }
2391 if (Affich2d) {
2392 TopLoc_Location L;
2393 Standard_Real f,l;
2394 Handle(Geom_Surface) Surf;
2395 Handle(Geom2d_Curve) C;
2396 BRep_Tool::CurveOnSurface(NewEdge,C,Surf,L,f,l);
2397 char name[256];
2398 sprintf(name,"OFFSET2d_%d",NbTRIMEDGES++);
2399 Handle(Geom2d_TrimmedCurve) C2d = new Geom2d_TrimmedCurve(C,f,l);
2400 Handle(DrawTrSurf_Curve2d) dr =
2401 new DrawTrSurf_Curve2d(C2d,Standard_False);
2402 dr->SetColor(Draw_bleu);
2403 Draw::Set(name,dr);
2404 }
7fd59977 2405#endif
873c119f 2406#endif
6a442250 2407 S.Append(NewEdge);
2408 }
7fd59977 2409 }
2410}
2411
2412//=======================================================================
e11c1bc4 2413//function : IsInnerEdge
2414//purpose :
2415//=======================================================================
2416
2417static Standard_Boolean IsInnerEdge(const TopoDS_Shape& ProE,
2418 const TopoDS_Face& AllSpine,
2419 Standard_Real& TrPar1,
2420 Standard_Real& TrPar2)
2421{
2422 if (ProE.ShapeType() != TopAbs_EDGE)
2423 return Standard_False;
2424
2425 TopoDS_Edge anEdge = TopoDS::Edge(ProE);
2426
2427 TopTools_IndexedDataMapOfShapeListOfShape VEmap;
2428 TopExp::MapShapesAndAncestors(AllSpine, TopAbs_VERTEX, TopAbs_EDGE, VEmap);
2429 for (Standard_Integer i = 1; i <= VEmap.Extent(); i++)
2430 {
2431 const TopTools_ListOfShape& LE = VEmap(i);
2432 if (LE.Extent() == 1 && anEdge.IsSame(LE.First()))
2433 return Standard_False;
2434 }
2435
2436 BRep_Tool::Range(anEdge, TrPar1, TrPar2);
2437 return Standard_True;
2438}
2439
2440
2441
2442//=======================================================================
7fd59977 2443//function : DoubleOrNotInside
0d969553 2444//purpose : return True if V appears twice in LV or is not inside.
7fd59977 2445//=======================================================================
2446
2447Standard_Boolean DoubleOrNotInside (const TopTools_ListOfShape& LV,
873c119f 2448 const TopoDS_Vertex& V)
7fd59977 2449{
2450 Standard_Boolean Vu = Standard_False;
2451 TopTools_ListIteratorOfListOfShape it(LV);
2452
2453 for ( ; it.More(); it.Next()) {
2454 if (V.IsSame(it.Value())) {
2455 if (Vu) return Standard_True;
2456 else Vu = Standard_True;
2457 }
2458 }
2459 if (Vu) return Standard_False;
2460 else return Standard_True;
2461}
2462
2463Standard_Boolean IsSmallClosedEdge(const TopoDS_Edge& anEdge,
873c119f 2464 const TopoDS_Vertex& aVertex)
7fd59977 2465{
2466 gp_Pnt PV = BRep_Tool::Pnt(aVertex);
2467 gp_Pnt2d PV2d, Pfirst, Plast, Pmid;
2468 PV2d.SetCoord( PV.X(), PV.Y() );
2469
2470 Handle(Geom2d_Curve) PCurve;
2471 Handle( BRep_CurveRepresentation ) CurveRep =
2472 ((Handle(BRep_TEdge)::DownCast(anEdge.TShape()))->Curves()).First();
2473 PCurve = CurveRep->PCurve();
2474
2475 Standard_Real fpar = (Handle(BRep_GCurve)::DownCast(CurveRep))->First();
2476 Standard_Real lpar = (Handle(BRep_GCurve)::DownCast(CurveRep))->Last();
2477 Pfirst = PCurve->Value(fpar);
2478 Plast = PCurve->Value(lpar);
2479 Pmid = PCurve->Value((fpar + lpar)*0.5);
2480
2481 Standard_Real theTol = BRep_Tool::Tolerance(aVertex);
2482 theTol *= 1.5;
2483
2484 Standard_Real dist1 = Pfirst.Distance(PV2d);
2485 Standard_Real dist2 = Plast.Distance(PV2d);
2486 Standard_Real dist3 = Pmid.Distance(PV2d);
2487
2488 if (dist1 <= theTol && dist2 <= theTol && dist3 <= theTol)
2489 return Standard_True;
2490
2491 return Standard_False;
2492}
2493
2494static void CheckBadEdges(const TopoDS_Face& Spine, const Standard_Real Offset,
873c119f 2495 const BRepMAT2d_BisectingLocus& Locus,
2496 const BRepMAT2d_LinkTopoBilo& Link,
2497 TopTools_ListOfShape& BadEdges)
7fd59977 2498{
2499
2500 TopoDS_Face F = TopoDS::Face(Spine.Oriented(TopAbs_FORWARD));
2501 Standard_Real eps = Precision::Confusion();
2502 Standard_Real LimCurv = 1./Offset;
2503
2504 TopTools_MapOfShape aMap;
2505
2506 for (Standard_Integer ic = 1; ic <= Locus.NumberOfContours(); ic++) {
2507 for (Standard_Integer ie = 1; ie <= Locus.NumberOfElts(ic); ie++) {
2508 const TopoDS_Shape& SE = Link.GeneratingShape(Locus.BasicElt(ic,ie));
2509 if (SE.ShapeType() == TopAbs_EDGE) {
2510
873c119f 2511
2512 if (aMap.Contains(SE)) {
2513 //cout << "Edge is treated second time" << endl;
2514 continue;
2515 }
2516
2517
2518 TopoDS_Edge E = TopoDS::Edge(SE);
2519
2520
2521 Standard_Real f,l;
2522
2523
2524 Handle(Geom2d_Curve) G2d = BRep_Tool::CurveOnSurface(E,F,f,l);
2525
2526
2527 Geom2dAdaptor_Curve AC(G2d,f,l);
2528 GeomAbs_CurveType aCType = AC.GetType();
2529
2530
2531 if(aCType != GeomAbs_Line && aCType != GeomAbs_Circle) {
2532
2533
2534 Standard_Boolean reverse = Standard_False;
2535 if (E.Orientation() == TopAbs_FORWARD) reverse = Standard_True;
2536
2537
2538 gp_Pnt2d P, Pc;
2539 gp_Dir2d N;
2540
2541
2542 Geom2dLProp_CLProps2d aCLProps(G2d, 2, eps);
2543
2544
2545 aCLProps.SetParameter(f);
2546 if(!aCLProps.IsTangentDefined()) {
2547 BadEdges.Append(SE);
2548 aMap.Add(SE);
2549 continue;
2550 }
2551
2552
2553 P = aCLProps.Value();
2554 Standard_Real Crv = aCLProps.Curvature();
2555
2556
2557 if(Crv >= eps) {
2558 aCLProps.Tangent(N);
2559 Standard_Real x = N.Y(), y = -N.X();
2560 N.SetCoord(x, y);
2561 if (reverse) N.Reverse();
2562 aCLProps.CentreOfCurvature(Pc);
2563 gp_Vec2d Dir( P, Pc );
2564 if (N.Dot(Dir) > 0.) {
2565 if (LimCurv <= Crv + eps) {
2566 BadEdges.Append(SE);
2567 aMap.Add(SE);
2568 continue;
2569 }
2570 }
2571 }
2572
2573
2574 aCLProps.SetParameter(l);
2575 if(!aCLProps.IsTangentDefined()) {
2576 BadEdges.Append(SE);
2577 aMap.Add(SE);
2578 continue;
2579 }
2580
2581
2582 P = aCLProps.Value();
2583 Crv = aCLProps.Curvature();
2584
2585
2586 if(Crv >= eps) {
2587 aCLProps.Tangent(N);
2588 Standard_Real x = N.Y(), y = -N.X();
2589 N.SetCoord(x, y);
2590 if (reverse) N.Reverse();
2591 aCLProps.CentreOfCurvature(Pc);
2592 gp_Vec2d Dir( P, Pc );
2593 if (N.Dot(Dir) > 0.) {
2594 if (LimCurv <= Crv + eps) {
2595 BadEdges.Append(SE);
2596 aMap.Add(SE);
2597 continue;
2598 }
2599 }
2600 }
2601 }
7fd59977 2602 }
2603 }
2604 }
2605}
2606
2607
2608//=======================================================================
2609//function : PerformCurve
2610//purpose :
2611//=======================================================================
2612
2613static Standard_Boolean PerformCurve (TColStd_SequenceOfReal& Parameters,
873c119f 2614
2615 TColgp_SequenceOfPnt& Points,
2616 const Adaptor3d_Curve& C,
2617 const Standard_Real Deflection,
2618 const Standard_Real U1,
2619 const Standard_Real U2,
2620 const Standard_Real EPSILON,
2621 const Standard_Integer Nbmin)
7fd59977 2622{
2623 Standard_Real UU1 = Min(U1, U2);
2624 Standard_Real UU2 = Max(U1, U2);
2625
2626 gp_Pnt Pdeb, Pfin;
2627 gp_Vec Ddeb,Dfin;
2628 C.D1(UU1,Pdeb,Ddeb);
2629 Parameters.Append(UU1);
2630 Points.Append(Pdeb);
2631
2632 C.D1(UU2,Pfin,Dfin);
91bb31f3 2633
2634 const Standard_Real aDelta = UU2 - UU1;
2635 const Standard_Real aDist = Pdeb.Distance(Pfin);
2636
2637 if((aDelta/aDist) > 5.0e-14)
2638 {
2639 QuasiFleche(C,Deflection*Deflection,
873c119f 2640
2641 UU1,Pdeb,
2642 Ddeb,
2643 UU2,Pfin,
2644 Dfin,
2645 Nbmin,
2646 EPSILON*EPSILON,
2647 Parameters,Points);
91bb31f3 2648 }
2649
7fd59977 2650 return Standard_True;
2651}
2652//=======================================================================
2653//function : QuasiFleche
2654//purpose :
2655//=======================================================================
2656
2657static void QuasiFleche(const Adaptor3d_Curve& C,
873c119f 2658
2659 const Standard_Real Deflection2,
2660 const Standard_Real Udeb,
2661 const gp_Pnt& Pdeb,
2662 const gp_Vec& Vdeb,
2663 const Standard_Real Ufin,
2664 const gp_Pnt& Pfin,
2665 const gp_Vec& Vfin,
2666 const Standard_Integer Nbmin,
2667 const Standard_Real Eps,
2668 TColStd_SequenceOfReal& Parameters,
2669 TColgp_SequenceOfPnt& Points)
7fd59977 2670{
2671 Standard_Integer Ptslength = Points.Length();
2672 Standard_Real Udelta = Ufin-Udeb;
2673 gp_Pnt Pdelta;
2674 gp_Vec Vdelta;
2675 if (Nbmin > 2) {
2676 Udelta /=(Nbmin-1);
2677 C.D1(Udeb+Udelta,Pdelta,Vdelta);
2678 }
2679 else {
2680 Pdelta = Pfin;
2681 Vdelta = Vfin;
2682 }
2683
2684
2685 Standard_Real Norme = gp_Vec(Pdeb,Pdelta).SquareMagnitude();
2686 Standard_Real theFleche=0;
2687 Standard_Boolean flecheok = Standard_False;
2688 if (Norme > Eps) {
0d969553 2689 // Evaluation of the arrow by interpolation. See IntWalk_IWalking_5.gxx
7fd59977 2690 Standard_Real N1 = Vdeb.SquareMagnitude();
2691 Standard_Real N2 = Vdelta.SquareMagnitude();
2692 if (N1 > Eps && N2 > Eps) {
2693 Standard_Real Normediff =
873c119f 2694
2695 (Vdeb.Normalized().XYZ()-Vdelta.Normalized().XYZ()).SquareModulus();
7fd59977 2696 if (Normediff > Eps) {
873c119f 2697
2698 theFleche = Normediff*Norme/64.;
2699 flecheok = Standard_True;
7fd59977 2700 }
2701 }
2702 }
2703 if (!flecheok) {
2704 gp_Pnt Pmid((Pdeb.XYZ()+Pdelta.XYZ())/2.);
2705 gp_Pnt Pverif(C.Value(Udeb+Udelta/2.));
2706 theFleche = Pmid.SquareDistance(Pverif);
2707 }
2708
2709 if (theFleche < Deflection2) {
2710 Parameters.Append(Udeb+Udelta);
2711 Points.Append(Pdelta);
2712 }
2713 else {
2714 QuasiFleche(C,Deflection2,Udeb,Pdeb,
873c119f 2715
2716 Vdeb,
2717 Udeb+Udelta,Pdelta,
2718 Vdelta,
2719 3,
2720 Eps,
2721 Parameters,Points);
7fd59977 2722
2723 }
2724
2725 if (Nbmin > 2) {
2726 QuasiFleche(C,Deflection2,Udeb+Udelta,Pdelta,
873c119f 2727
2728 Vdelta,
2729 Ufin,Pfin,
2730 Vfin,
2731 Nbmin-(Points.Length()-Ptslength),
2732 Eps,
2733 Parameters,Points);
7fd59977 2734 }
2735}
ab87e6fc 2736