1 // Created by: Peter KURNEV
2 // Copyright (c) 2010-2012 OPEN CASCADE SAS
3 // Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
4 // Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT,
5 // EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
7 // The content of this file is subject to the Open CASCADE Technology Public
8 // License Version 6.5 (the "License"). You may not use the content of this file
9 // except in compliance with the License. Please obtain a copy of the License
10 // at http://www.opencascade.org and read it completely before using this file.
12 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
13 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
15 // The Original Code and all software distributed under the License is
16 // distributed on an "AS IS" basis, without warranty of any kind, and the
17 // Initial Developer hereby disclaims all such warranties, including without
18 // limitation, any warranties of merchantability, fitness for a particular
19 // purpose or non-infringement. Please see the License for the specific terms
20 // and conditions governing the rights and limitations under the License.
23 #include <BOPTools_AlgoTools.ixx>
25 #include <Precision.hxx>
29 #include <gp_Pnt2d.hxx>
30 #include <gp_Cylinder.hxx>
31 #include <gp_Cone.hxx>
32 #include <gp_Sphere.hxx>
33 #include <gp_Torus.hxx>
35 #include <Geom2d_Curve.hxx>
36 #include <Geom_Surface.hxx>
37 #include <Geom_Plane.hxx>
38 #include <Geom_TrimmedCurve.hxx>
39 #include <Geom_Curve.hxx>
40 #include <GeomAPI_ProjectPointOnSurf.hxx>
41 #include <Geom2dInt_Geom2dCurveTool.hxx>
42 #include <GeomAdaptor_Surface.hxx>
44 #include <TopAbs_Orientation.hxx>
46 #include <TopoDS_Compound.hxx>
47 #include <TopoDS_CompSolid.hxx>
48 #include <TopoDS_Solid.hxx>
49 #include <TopoDS_Shell.hxx>
50 #include <TopoDS_Wire.hxx>
52 #include <BRep_Builder.hxx>
53 #include <BRep_Tool.hxx>
54 #include <BRepLib.hxx>
55 #include <BRepAdaptor_Curve2d.hxx>
56 #include <BRepClass3d_SolidClassifier.hxx>
58 #include <TopExp_Explorer.hxx>
60 #include <IntTools_Tools.hxx>
62 #include <BOPTools.hxx>
63 #include <BOPTools_CoupleOfShape.hxx>
64 #include <BOPTools_ListOfCoupleOfShape.hxx>
65 #include <BOPTools_AlgoTools2D.hxx>
66 #include <BOPTools_AlgoTools3D.hxx>
68 #include <BOPCol_IndexedMapOfShape.hxx>
69 #include <BOPCol_MapOfShape.hxx>
71 #include <BOPInt_ShrunkRange.hxx>
75 Standard_Real AngleWithRef(const gp_Dir& theD1,
77 const gp_Dir& theDRef);
79 inline Standard_Real fsqrt(Standard_Real val);
82 Standard_Boolean FindFacePairs (const TopoDS_Edge& theE,
83 const BOPCol_ListOfShape& thLF,
84 BOPTools_ListOfCoupleOfShape& theLCFF,
85 Handle(BOPInt_Context)& theContext);
87 TopAbs_Orientation Orientation(const TopoDS_Edge& anE,
88 const TopoDS_Face& aF);
91 void GetFaceDir(const TopoDS_Edge& aE,
92 const TopoDS_Face& aF,
94 const Standard_Real aT,
98 Handle(BOPInt_Context)& theContext);
100 Standard_Boolean FindPointInFace(const TopoDS_Edge& aE,
101 const TopoDS_Face& aF,
103 const Standard_Real aT,
106 Handle(BOPInt_Context)& theContext,
107 const GeomAdaptor_Surface& aGAS);
109 //=======================================================================
110 // function: MakeConnexityBlocks
112 //=======================================================================
113 void BOPTools_AlgoTools::MakeConnexityBlocks (const TopoDS_Shape& theS,
114 const TopAbs_ShapeEnum theType1,
115 const TopAbs_ShapeEnum theType2,
116 BOPCol_ListOfShape& theLCB)
118 Standard_Integer aNbF, aNbAdd, aNbAdd1, i;
122 TopExp_Explorer aExp;
123 BOPCol_MapOfShape aMP;
124 BOPCol_IndexedMapOfShape aMCB, aMAdd, aMAdd1;
125 BOPCol_IndexedDataMapOfShapeListOfShape aMEF;
126 BOPCol_ListIteratorOfListOfShape aItLF;
129 BOPTools::MapShapesAndAncestors(theS, theType1, theType2, aMEF);
132 aIt.Initialize(theS);
133 for (; aIt.More(); aIt.Next()) {
134 const TopoDS_Shape& aF1=aIt.Value();
135 if (aMP.Contains(aF1)) {
146 aNbAdd = aMAdd.Extent();
147 for (i=1; i<=aNbAdd; ++i) {
148 const TopoDS_Shape& aF=aMAdd(i);
150 aExp.Init(aF, theType1);
151 for (; aExp.More(); aExp.Next()) {
152 const TopoDS_Shape& aE=aExp.Current();
154 const BOPCol_ListOfShape& aLF=aMEF.FindFromKey(aE);
155 aItLF.Initialize(aLF);
156 for (; aItLF.More(); aItLF.Next()) {
157 const TopoDS_Shape& aFx=aItLF.Value();
158 if (aFx.IsSame(aF)) {
161 if (aMCB.Contains(aFx)) {
166 }//for (; aExp.More(); aExp.Next()){
168 }// for (i=1; i<=aNbAdd; ++i) {
170 aNbAdd1=aMAdd1.Extent();
172 break;// ->make new CB from aMCB
176 for (i=1; i<=aNbAdd1; ++i) {
177 const TopoDS_Shape& aFAdd = aMAdd1(i);
184 aBB.MakeCompound(aC);
186 for (i=1; i<=aNbF; ++i) {
187 const TopoDS_Shape& aF=aMCB(i);
193 }// for (; aIt.More(); aIt.Next())
195 //=======================================================================
196 // function: OrientFacesOnShell
198 //=======================================================================
199 void BOPTools_AlgoTools::OrientFacesOnShell (TopoDS_Shape& aShell)
201 Standard_Boolean bIsProcessed1, bIsProcessed2;
202 Standard_Integer i, aNbE, aNbF, j;
203 TopAbs_Orientation anOrE1, anOrE2;
204 TopoDS_Face aF1x, aF2x;
205 TopoDS_Shape aShellNew;
206 BOPCol_IndexedDataMapOfShapeListOfShape aEFMap;
207 BOPCol_IndexedMapOfShape aProcessedFaces;
210 BOPTools_AlgoTools::MakeContainer(TopAbs_SHELL, aShellNew);
212 BOPTools::MapShapesAndAncestors(aShell, TopAbs_EDGE, TopAbs_FACE, aEFMap);
213 aNbE=aEFMap.Extent();
215 // One seam edge in aEFMap contains 2 equivalent faces.
216 for (i=1; i<=aNbE; ++i) {
217 BOPCol_ListOfShape& aLF=aEFMap.ChangeFromIndex(i);
220 BOPCol_ListOfShape aLFTmp;
221 BOPCol_IndexedMapOfShape aFM;
223 BOPCol_ListIteratorOfListOfShape anIt(aLF);
224 for (; anIt.More(); anIt.Next()) {
225 const TopoDS_Shape& aF=anIt.Value();
226 if (!aFM.Contains(aF)) {
237 for (i=1; i<=aNbE; ++i) {
238 const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aEFMap.FindKey(i)));
239 if (BRep_Tool::Degenerated(aE)) {
243 const BOPCol_ListOfShape& aLF=aEFMap.FindFromIndex(i);
249 TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
250 TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last()));
252 bIsProcessed1=aProcessedFaces.Contains(aF1);
253 bIsProcessed2=aProcessedFaces.Contains(aF2);
254 if (bIsProcessed1 && bIsProcessed2) {
258 if (!bIsProcessed1 && !bIsProcessed2) {
259 aProcessedFaces.Add(aF1);
260 aBB.Add(aShellNew, aF1);
261 bIsProcessed1=!bIsProcessed1;
266 j=aProcessedFaces.FindIndex(aF1);
267 aF1x=(*(TopoDS_Face*)(&aProcessedFaces.FindKey(j)));
272 j=aProcessedFaces.FindIndex(aF2);
273 aF2x=(*(TopoDS_Face*)(&aProcessedFaces.FindKey(j)));
276 anOrE1=Orientation(aE, aF1x);
277 anOrE2=Orientation(aE, aF2x);
279 if (bIsProcessed1 && !bIsProcessed2) {
280 if (anOrE1==anOrE2) {
281 if (!BRep_Tool::IsClosed(aE, aF1) &&
282 !BRep_Tool::IsClosed(aE, aF2)) {
286 aProcessedFaces.Add(aF2);
287 aBB.Add(aShellNew, aF2);
289 else if (!bIsProcessed1 && bIsProcessed2) {
290 if (anOrE1==anOrE2) {
291 if (!BRep_Tool::IsClosed(aE, aF1) &&
292 !BRep_Tool::IsClosed(aE, aF2)) {
296 aProcessedFaces.Add(aF1);
297 aBB.Add(aShellNew, aF1);
302 for (i=1; i<=aNbE; ++i) {
303 const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aEFMap.FindKey(i)));
304 if (BRep_Tool::Degenerated(aE)) {
308 const BOPCol_ListOfShape& aLF=aEFMap.FindFromIndex(i);
311 BOPCol_ListIteratorOfListOfShape anIt(aLF);
312 for(; anIt.More(); anIt.Next()) {
313 const TopoDS_Face& aF=(*(TopoDS_Face*)(&anIt.Value()));
314 if (!aProcessedFaces.Contains(aF)) {
315 aProcessedFaces.Add(aF);
316 aBB.Add(aShellNew, aF);
323 //=======================================================================
324 //function : Orientation
326 //=======================================================================
327 TopAbs_Orientation Orientation(const TopoDS_Edge& anE,
328 const TopoDS_Face& aF)
330 TopAbs_Orientation anOr=TopAbs_INTERNAL;
332 TopExp_Explorer anExp;
333 anExp.Init(aF, TopAbs_EDGE);
334 for (; anExp.More(); anExp.Next()) {
335 const TopoDS_Edge& anEF1=(*(TopoDS_Edge*)(&anExp.Current()));
336 if (anEF1.IsSame(anE)) {
337 anOr=anEF1.Orientation();
347 //=======================================================================
348 // function: MakeConnexityBlock.
350 //=======================================================================
351 void BOPTools_AlgoTools::MakeConnexityBlock (BOPCol_ListOfShape& theLFIn,
352 BOPCol_IndexedMapOfShape& theMEAvoid,
353 BOPCol_ListOfShape& theLCB,
354 const Handle(NCollection_BaseAllocator)& theAllocator)
356 Standard_Integer aNbF, aNbAdd1, aNbAdd, i;
357 TopExp_Explorer aExp;
358 BOPCol_ListIteratorOfListOfShape aIt;
360 BOPCol_IndexedMapOfShape aMCB(100, theAllocator);
361 BOPCol_IndexedMapOfShape aMAdd(100, theAllocator);
362 BOPCol_IndexedMapOfShape aMAdd1(100, theAllocator);
363 BOPCol_IndexedDataMapOfShapeListOfShape aMEF(100, theAllocator);
366 aNbF=theLFIn.Extent();
367 aIt.Initialize(theLFIn);
368 for (; aIt.More(); aIt.Next()) {
369 const TopoDS_Shape& aF=aIt.Value();
370 BOPTools::MapShapesAndAncestors(aF, TopAbs_EDGE, TopAbs_FACE, aMEF);
374 const TopoDS_Shape& aF1=theLFIn.First();
379 aNbAdd = aMAdd.Extent();
380 for (i=1; i<=aNbAdd; ++i) {
381 const TopoDS_Shape& aF=aMAdd(i);
384 aExp.Init(aF, TopAbs_EDGE);
385 for (; aExp.More(); aExp.Next()) {
386 const TopoDS_Shape& aE=aExp.Current();
387 if (theMEAvoid.Contains(aE)){
391 const BOPCol_ListOfShape& aLF=aMEF.FindFromKey(aE);
393 for (; aIt.More(); aIt.Next()) {
394 const TopoDS_Shape& aFx=aIt.Value();
395 if (aFx.IsSame(aF)) {
398 if (aMCB.Contains(aFx)) {
403 }//for (; aExp.More(); aExp.Next()){
405 }// for (i=1; i<=aNbAdd; ++i) {
407 aNbAdd1=aMAdd1.Extent();
413 for (i=1; i<=aNbAdd1; ++i) {
414 const TopoDS_Shape& aFAdd=aMAdd1(i);
422 for (i=1; i<=aNbF; ++i) {
423 const TopoDS_Shape& aF=aMCB(i);
427 //=======================================================================
428 // function: ComputeStateByOnePoint
430 //=======================================================================
431 TopAbs_State BOPTools_AlgoTools::ComputeStateByOnePoint(const TopoDS_Shape& theS,
432 const TopoDS_Solid& theRef,
433 const Standard_Real theTol,
434 Handle(BOPInt_Context)& theContext)
437 TopAbs_ShapeEnum aType;
439 aState=TopAbs_UNKNOWN;
440 aType=theS.ShapeType();
441 if (aType==TopAbs_VERTEX) {
442 const TopoDS_Vertex& aV=(*(TopoDS_Vertex*)(&theS));
443 aState=BOPTools_AlgoTools::ComputeState(aV, theRef, theTol, theContext);
445 else if (aType==TopAbs_EDGE) {
446 const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&theS));
447 aState=BOPTools_AlgoTools::ComputeState(aE, theRef, theTol, theContext);
452 //=======================================================================
453 // function: ComputeState
455 //=======================================================================
456 TopAbs_State BOPTools_AlgoTools::ComputeState(const TopoDS_Face& theF,
457 const TopoDS_Solid& theRef,
458 const Standard_Real theTol,
459 BOPCol_IndexedMapOfShape& theBounds,
460 Handle(BOPInt_Context)& theContext)
463 TopExp_Explorer aExp;
468 aState=TopAbs_UNKNOWN;
470 aExp.Init(theF, TopAbs_EDGE);
471 for (; aExp.More(); aExp.Next()) {
472 const TopoDS_Edge& aSE=(*(TopoDS_Edge*)(&aExp.Current()));
473 if (BRep_Tool::Degenerated(aSE)) {
477 if (!theBounds.Contains(aSE)) {
478 const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aSE));
479 aState=BOPTools_AlgoTools::ComputeState(aE, theRef, theTol, theContext);
483 aE1=(*(TopoDS_Edge*)(&aSE));
486 // !!<- process edges that are all on theRef
488 BOPTools_AlgoTools3D::PointNearEdge(aE1, theF, aP2D, aP3D, theContext);
489 aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext);
494 //=======================================================================
495 // function: ComputeState
497 //=======================================================================
498 TopAbs_State BOPTools_AlgoTools::ComputeState(const TopoDS_Vertex& theV,
499 const TopoDS_Solid& theRef,
500 const Standard_Real theTol,
501 Handle(BOPInt_Context)& theContext)
506 aP3D=BRep_Tool::Pnt(theV);
507 aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext);
510 //=======================================================================
511 // function: ComputeState
513 //=======================================================================
514 TopAbs_State BOPTools_AlgoTools::ComputeState(const TopoDS_Edge& theE,
515 const TopoDS_Solid& theRef,
516 const Standard_Real theTol,
517 Handle(BOPInt_Context)& theContext)
519 Standard_Real aT1, aT2, aT = 0.;
521 Handle(Geom_Curve) aC3D;
524 aC3D = BRep_Tool::Curve(theE, aT1, aT2);
527 //it means that we are in degenerated edge
528 const TopoDS_Vertex& aV = TopExp::FirstVertex(theE);
530 return TopAbs_UNKNOWN;
532 aP3D=BRep_Tool::Pnt(aV);
535 Standard_Boolean bF2Inf, bL2Inf;
536 Standard_Real dT=10.;
538 bF2Inf = Precision::IsNegativeInfinite(aT1);
539 bL2Inf = Precision::IsPositiveInfinite(aT2);
541 if (bF2Inf && !bL2Inf) {
544 else if (!bF2Inf && bL2Inf) {
547 else if (bF2Inf && bL2Inf) {
551 aT=IntTools_Tools::IntermediatePoint(aT1, aT2);
556 aState=BOPTools_AlgoTools::ComputeState(aP3D, theRef, theTol, theContext);
560 //=======================================================================
561 // function: ComputeState
563 //=======================================================================
564 TopAbs_State BOPTools_AlgoTools::ComputeState(const gp_Pnt& theP,
565 const TopoDS_Solid& theRef,
566 const Standard_Real theTol,
567 Handle(BOPInt_Context)& theContext)
571 BRepClass3d_SolidClassifier& aSC=theContext->SolidClassifier(theRef);
572 aSC.Perform(theP, theTol);
578 //=======================================================================
579 //function : IsInternalFace
581 //=======================================================================
582 Standard_Boolean BOPTools_AlgoTools::IsInternalFace(const TopoDS_Face& theFace,
583 const TopoDS_Solid& theSolid,
584 BOPCol_IndexedDataMapOfShapeListOfShape& theMEF,
585 const Standard_Real theTol,
586 Handle(BOPInt_Context)& theContext)
588 Standard_Boolean bRet, bDegenerated;
589 Standard_Integer aNbF;
590 TopAbs_Orientation aOr;
592 TopExp_Explorer aExp;
593 BOPCol_ListIteratorOfListOfShape aItF;
597 // 1 Try to find an edge from theFace in theMEF
598 aExp.Init(theFace, TopAbs_EDGE);
599 for(; aExp.More(); aExp.Next()) {
600 const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aExp.Current()));
601 if (!theMEF.Contains(aE)) {
605 aOr=aE.Orientation();
606 if (aOr==TopAbs_INTERNAL) {
609 bDegenerated=BRep_Tool::Degenerated(aE);
614 BOPCol_ListOfShape& aLF=theMEF.ChangeFromKey(aE);
617 return bRet; // it can not be so
620 // aE is internal edge on aLF.First()
621 const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
622 bRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aF1, aF1, theContext);
626 const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First()));
627 const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last()));
629 if (aF2.IsSame(aF1) && BRep_Tool::IsClosed(aE, aF1)) {
630 // treat as it was for 1 face
631 bRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aF1, aF2, theContext);
636 return bRet; // it can not be so
638 else { // aNbF=2,4,6,8,...
639 bRet=BOPTools_AlgoTools::IsInternalFace(theFace, aE, aLF, theContext);
642 }//for(; aExp.More(); aExp.Next()) {
644 //========================================
645 // 2. Classify face using classifier
648 BOPCol_IndexedMapOfShape aBounds;
650 aState=BOPTools_AlgoTools::ComputeState(theFace, theSolid, theTol, aBounds, theContext);
651 bRet=(aState==TopAbs_IN);
655 //=======================================================================
656 //function : IsInternalFace
658 //=======================================================================
659 Standard_Boolean BOPTools_AlgoTools::IsInternalFace(const TopoDS_Face& theFace,
660 const TopoDS_Edge& theEdge,
661 BOPCol_ListOfShape& theLF,
662 Handle(BOPInt_Context)& theContext)
664 Standard_Boolean bRet;
665 Standard_Boolean aNbF;
671 const TopoDS_Face& aF1=(*(TopoDS_Face*)(&theLF.First()));
672 const TopoDS_Face& aF2=(*(TopoDS_Face*)(&theLF.Last()));
673 bRet=BOPTools_AlgoTools::IsInternalFace(theFace, theEdge, aF1, aF2, theContext);
678 BOPTools_ListOfCoupleOfShape aLCFF;
679 BOPTools_ListIteratorOfListOfCoupleOfShape aIt;
681 FindFacePairs(theEdge, theLF, aLCFF, theContext);
683 aIt.Initialize(aLCFF);
684 for (; aIt.More(); aIt.Next()) {
685 BOPTools_CoupleOfShape& aCSFF=aIt.ChangeValue();
687 const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aCSFF.Shape1()));
688 const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aCSFF.Shape2()));
689 bRet=BOPTools_AlgoTools::IsInternalFace(theFace, theEdge, aF1, aF2, theContext);
697 //=======================================================================
698 //function : IsInternalFace
700 //=======================================================================
701 Standard_Boolean BOPTools_AlgoTools::IsInternalFace(const TopoDS_Face& theFace,
702 const TopoDS_Edge& theEdge,
703 const TopoDS_Face& theFace1,
704 const TopoDS_Face& theFace2,
705 Handle(BOPInt_Context)& theContext)
707 Standard_Boolean bRet;
708 TopoDS_Edge aE1, aE2;
710 BOPTools_ListOfCoupleOfShape theLCSOff;
711 BOPTools_CoupleOfShape aCS1, aCS2;
713 BOPTools_AlgoTools::GetEdgeOnFace(theEdge, theFace1, aE1);
714 if (aE1.Orientation()==TopAbs_INTERNAL) {
716 aE1.Orientation(TopAbs_FORWARD);
717 aE2.Orientation(TopAbs_REVERSED);
719 else if (theFace1==theFace2) {
721 aE1.Orientation(TopAbs_FORWARD);
722 aE2.Orientation(TopAbs_REVERSED);
725 BOPTools_AlgoTools::GetEdgeOnFace(theEdge, theFace2, aE2);
728 aCS1.SetShape1(theEdge);
729 aCS1.SetShape2(theFace);
730 theLCSOff.Append(aCS1);
733 aCS2.SetShape2(theFace2);
734 theLCSOff.Append(aCS2);
736 GetFaceOff(aE1, theFace1, theLCSOff, aFOff, theContext);
738 bRet = theFace.IsEqual(aFOff);
741 //=======================================================================
742 //function : GetFaceOff
744 //=======================================================================
745 void BOPTools_AlgoTools::GetFaceOff(const TopoDS_Edge& theE1,
746 const TopoDS_Face& theF1,
747 BOPTools_ListOfCoupleOfShape& theLCSOff,
748 TopoDS_Face& theFOff,
749 Handle(BOPInt_Context)& theContext)
751 Standard_Real aT, aT1, aT2, aAngle, aTwoPI, aAngleMin;
752 gp_Pnt aPn1, aPn2, aPx;
753 gp_Dir aDN1, aDN2, aDBF, aDBF2, aDTF;
755 TopAbs_Orientation aOr;
756 Handle(Geom_Curve)aC3D;
757 BOPTools_ListIteratorOfListOfCoupleOfShape aIt;
761 aC3D =BRep_Tool::Curve(theE1, aT1, aT2);
762 aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2);
765 BOPTools_AlgoTools2D::EdgeTangent(theE1, aT, aVTgt);
766 gp_Dir aDTgt(aVTgt), aDTgt2;
767 aOr = theE1.Orientation();
769 GetFaceDir(theE1, theF1, aPx, aT, aDTgt, aDN1, aDBF, theContext);
773 aIt.Initialize(theLCSOff);
774 for (; aIt.More(); aIt.Next()) {
775 const BOPTools_CoupleOfShape& aCS=aIt.Value();
776 const TopoDS_Edge& aE2=(*(TopoDS_Edge*)(&aCS.Shape1()));
777 const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aCS.Shape2()));
779 aDTgt2 = (aE2.Orientation()==aOr) ? aDTgt : aDTgt.Reversed();
780 GetFaceDir(aE2, aF2, aPx, aT, aDTgt2, aDN2, aDBF2, theContext);
782 aAngle=AngleWithRef(aDBF, aDBF2, aDTF);
785 aAngle=aTwoPI+aAngle;
788 if (aAngle<Precision::Angular()) {
792 else if (aF2.IsSame(theF1)) {
797 if (aAngle<aAngleMin){
803 //=======================================================================
804 //function : GetEdgeOff
806 //=======================================================================
807 Standard_Boolean BOPTools_AlgoTools::GetEdgeOff(const TopoDS_Edge& theE1,
808 const TopoDS_Face& theF2,
811 Standard_Boolean bFound;
812 TopAbs_Orientation aOr1, aOr1C, aOr2;
813 TopExp_Explorer anExp;
815 bFound=Standard_False;
816 aOr1=theE1.Orientation();
817 aOr1C=TopAbs::Reverse(aOr1);
819 anExp.Init(theF2, TopAbs_EDGE);
820 for (; anExp.More(); anExp.Next()) {
821 const TopoDS_Edge& aEF2=(*(TopoDS_Edge*)(&anExp.Current()));
822 if (aEF2.IsSame(theE1)) {
823 aOr2=aEF2.Orientation();
834 //=======================================================================
835 //function : AreFacesSameDomain
837 //=======================================================================
838 Standard_Boolean BOPTools_AlgoTools::AreFacesSameDomain(const TopoDS_Face& theF1,
839 const TopoDS_Face& theF2,
840 Handle(BOPInt_Context)& theContext)
842 Standard_Boolean bFlag;
843 Standard_Integer iErr;
844 Standard_Real aTolF1, aTolF2, aTol;
847 TopoDS_Face aF1, aF2;
849 TopExp_Explorer aExp;
851 bFlag=Standard_False;
854 aF1.Orientation(TopAbs_FORWARD);
856 aF2.Orientation(TopAbs_FORWARD);
858 aTolF1=BRep_Tool::Tolerance(aF1);
860 aExp.Init(aF1, TopAbs_EDGE);
861 for (; aExp.More(); aExp.Next()) {
862 aE1=(*(TopoDS_Edge*)(&aExp.Current()));
863 if (!BRep_Tool::Degenerated(aE1)) {
864 Standard_Real aTolE = BRep_Tool::Tolerance(aE1);
865 aTolF1 = (aTolE > aTolF1) ? aTolE : aTolF1;
869 aTolF2=BRep_Tool::Tolerance(aF2);
872 iErr = BOPTools_AlgoTools3D::PointInFace(aF1, aP, aP2D, theContext);
874 bFlag=theContext->IsValidPointForFace(aP, aF2, aTol);
880 //=======================================================================
881 //function : CheckSameGeom
883 //=======================================================================
884 Standard_Boolean BOPTools_AlgoTools::CheckSameGeom(const TopoDS_Face& theF1,
885 const TopoDS_Face& theF2,
886 Handle(BOPInt_Context)& theContext)
888 Standard_Boolean bRet;
889 Standard_Real aTolF1, aTolF2, aTol;
892 TopExp_Explorer aExp;
895 aExp.Init(theF1, TopAbs_EDGE);
896 for (; aExp.More(); aExp.Next()) {
897 const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aExp.Current()));
898 if (!BRep_Tool::Degenerated(aE)) {
899 aTolF1=BRep_Tool::Tolerance(theF1);
900 aTolF2=BRep_Tool::Tolerance(theF2);
902 BOPTools_AlgoTools3D::PointNearEdge(aE, theF1, aP2D, aP, theContext);
903 bRet=theContext->IsValidPointForFace(aP, theF2, aTol);
909 //=======================================================================
912 //=======================================================================
913 Standard_Integer BOPTools_AlgoTools::Sense (const TopoDS_Face& theF1,
914 const TopoDS_Face& theF2)
916 Standard_Integer iSense=0;
918 TopoDS_Edge aE1, aE2;
919 TopExp_Explorer aExp;
921 aExp.Init(theF1, TopAbs_EDGE);
922 for (; aExp.More(); aExp.Next()) {
923 aE1=(*(TopoDS_Edge*)(&aExp.Current()));
924 if (!BRep_Tool::Degenerated(aE1)) {
925 if (!BRep_Tool::IsClosed(aE1, theF1)) {
931 aExp.Init(theF2, TopAbs_EDGE);
932 for (; aExp.More(); aExp.Next()) {
933 aE2=(*(TopoDS_Edge*)(&aExp.Current()));
934 if (!BRep_Tool::Degenerated(aE2)) {
935 if (!BRep_Tool::IsClosed(aE2, theF2)) {
936 if (aE2.IsSame(aE1)) {
948 BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE1, theF1, aDNF1);
949 BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE2, theF2, aDNF2);
951 iSense=BOPTools_AlgoTools3D::SenseFlag(aDNF1, aDNF2);
955 //=======================================================================
956 // function: IsSplitToReverse
958 //=======================================================================
959 Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse(const TopoDS_Shape& theSp,
960 const TopoDS_Shape& theSr,
961 Handle(BOPInt_Context)& theContext)
963 Standard_Boolean bRet;
964 TopAbs_ShapeEnum aType;
968 aType=theSp.ShapeType();
971 const TopoDS_Edge& aESp=(*(TopoDS_Edge*)(&theSp));
972 const TopoDS_Edge& aESr=(*(TopoDS_Edge*)(&theSr));
973 bRet=BOPTools_AlgoTools::IsSplitToReverse(aESp, aESr, theContext);
978 const TopoDS_Face& aFSp=(*(TopoDS_Face*)(&theSp));
979 const TopoDS_Face& aFSr=(*(TopoDS_Face*)(&theSr));
980 bRet=BOPTools_AlgoTools::IsSplitToReverse(aFSp, aFSr, theContext);
989 //=======================================================================
990 //function :IsSplitToReverse
992 //=======================================================================
993 Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse(const TopoDS_Face& theFSp,
994 const TopoDS_Face& theFSr,
995 Handle(BOPInt_Context)& theContext)
997 Standard_Boolean bRet, bFound, bInFace;
998 Standard_Real aT1, aT2, aT, aU, aV, aScPr;
1002 Handle(Geom_Surface) aSr, aSp;
1003 TopAbs_Orientation aOrSr, aOrSp;
1004 TopExp_Explorer anExp;
1007 bRet=Standard_False;
1009 aSr=BRep_Tool::Surface(theFSr);
1010 aSp=BRep_Tool::Surface(theFSp);
1012 aOrSr=theFSr.Orientation();
1013 aOrSp=theFSp.Orientation();
1014 bRet=(aOrSr!=aOrSp);
1018 bFound=Standard_False;
1019 anExp.Init(theFSp, TopAbs_EDGE);
1020 for (; anExp.More(); anExp.Next()) {
1021 aESp=(*(TopoDS_Edge*)(&anExp.Current()));
1022 if (!BRep_Tool::Degenerated(aESp)) {
1023 if (!BRep_Tool::IsClosed(aESp, theFSp)) {
1030 Standard_Boolean bFlag;
1031 Standard_Integer iErr;
1034 iErr=BOPTools_AlgoTools3D::PointInFace(theFSp, aPFSp, aP2DFSp, theContext);
1039 aP2DFSp.Coord(aU, aV);
1040 bFlag=BOPTools_AlgoTools3D::GetNormalToSurface(aSp, aU, aV, aDNFSp);
1046 BRep_Tool::Range(aESp, aT1, aT2);
1047 aT=BOPTools_AlgoTools2D::IntermediatePoint(aT1, aT2);
1048 BOPTools_AlgoTools3D::GetApproxNormalToFaceOnEdge(aESp, theFSp, aT, aPFSp, aDNFSp, theContext);
1051 // Parts of theContext->ComputeVS(..)
1052 GeomAPI_ProjectPointOnSurf& aProjector=theContext->ProjPS(theFSr);
1053 aProjector.Perform(aPFSp);
1054 if (!aProjector.IsDone()) {
1058 aProjector.LowerDistanceParameters(aU, aV);
1059 gp_Pnt2d aP2D(aU, aV);
1060 bInFace=theContext->IsPointInFace (theFSr, aP2D);
1065 aSr->D1(aU, aV, aPFSr, aD1U, aD1V);
1068 gp_Dir aDNFSr=aDD1U^aDD1V;
1069 if (theFSr.Orientation()==TopAbs_REVERSED){
1073 aScPr=aDNFSp*aDNFSr;
1078 //=======================================================================
1079 //function :IsSplitToReverse
1081 //=======================================================================
1082 Standard_Boolean BOPTools_AlgoTools::IsSplitToReverse(const TopoDS_Edge& aEF1,
1083 const TopoDS_Edge& aEF2,
1084 Handle(BOPInt_Context)& theContext)
1086 Standard_Boolean bRet, bIsDegenerated;
1088 bRet=Standard_False;
1089 bIsDegenerated=(BRep_Tool::Degenerated(aEF1) ||
1090 BRep_Tool::Degenerated(aEF2));
1091 if (bIsDegenerated) {
1096 TopAbs_Orientation aOrE, aOrSp;
1097 Handle(Geom_Curve)aC1, aC2;
1099 aC2=BRep_Tool::Curve(aEF2, a, b);
1100 aC1=BRep_Tool::Curve(aEF1, a, b);
1103 aOrE=aEF2.Orientation();
1104 aOrSp=aEF1.Orientation();
1109 Standard_Real aT1, aT2, aScPr;
1113 aT1=BOPTools_AlgoTools2D::IntermediatePoint(a, b);
1115 BOPTools_AlgoTools2D::EdgeTangent(aEF1, aT1, aV1);
1118 theContext->ProjectPointOnEdge(aP, aEF2, aT2);
1120 BOPTools_AlgoTools2D::EdgeTangent(aEF2, aT2, aV2);
1129 //=======================================================================
1132 //=======================================================================
1133 Standard_Boolean BOPTools_AlgoTools::IsHole(const TopoDS_Shape& aW,
1134 const TopoDS_Shape& aFace)
1136 Standard_Boolean bIsHole;
1137 Standard_Integer i, aNbS;
1138 Standard_Real aT1, aT2, aS;
1139 Standard_Real aU1, aU2, aU, dU;
1140 Standard_Real aX1, aY1, aX0, aY0;
1141 TopAbs_Orientation aOr;
1143 gp_Pnt2d aP2D0, aP2D1;
1144 Handle(Geom2d_Curve) aC2D;
1145 TopoDS_Face aF, aFF;
1146 TopoDS_Iterator aItW;
1148 bIsHole=Standard_False;
1150 aF=(*(TopoDS_Face *)(&aFace));
1152 aFF.Orientation(TopAbs_FORWARD);
1155 aItW.Initialize(aW);
1156 for (; aItW.More(); aItW.Next()) {
1157 const TopoDS_Edge& aE=(*(TopoDS_Edge *)(&aItW.Value()));
1158 aOr=aE.Orientation();
1159 if (!(aOr==TopAbs_FORWARD ||
1160 aOr==TopAbs_REVERSED)) {
1164 aC2D=BRep_Tool::CurveOnSurface(aE, aFF, aT1, aT2);
1165 if (aC2D.IsNull()) {
1169 BRepAdaptor_Curve2d aBAC2D(aE, aFF);
1170 aNbS=Geom2dInt_Geom2dCurveTool::NbSamples(aBAC2D);
1175 dU=(aT2-aT1)/(Standard_Real)(aNbS-1);
1179 if (aOr==TopAbs_REVERSED) {
1186 aC2D->D0(aU, aP2D0);
1187 for(i=2; i<=aNbS; i++) {
1189 aC2D->D0(aU, aP2D1);
1190 aP2D0.Coord(aX0, aY0);
1191 aP2D1.Coord(aX1, aY1);
1193 aS=aS+(aY0+aY1)*(aX1-aX0);
1197 }//for (; aItW.More(); aItW.Next()) {
1202 //=======================================================================
1203 // function: MakeContainer
1205 //=======================================================================
1206 void BOPTools_AlgoTools::MakeContainer(const TopAbs_ShapeEnum theType,
1212 case TopAbs_COMPOUND:{
1214 aBB.MakeCompound(aC);
1219 case TopAbs_COMPSOLID:{
1220 TopoDS_CompSolid aCS;
1221 aBB.MakeCompSolid(aCS);
1227 TopoDS_Solid aSolid;
1228 aBB.MakeSolid(aSolid);
1235 TopoDS_Shell aShell;
1236 aBB.MakeShell(aShell);
1243 aBB.MakeWire(aWire);
1252 //=======================================================================
1253 // function: MakePCurve
1255 //=======================================================================
1256 void BOPTools_AlgoTools::MakePCurve(const TopoDS_Edge& aE,
1257 const TopoDS_Face& aF1,
1258 const TopoDS_Face& aF2,
1259 const IntTools_Curve& aIC,
1260 const Standard_Boolean bPC1,
1261 const Standard_Boolean bPC2)
1265 Standard_Real aTolE, aT1, aT2, aOutFirst, aOutLast, aOutTol;
1266 Handle(Geom2d_Curve) aC2D, aC2DA, aC2Dx1;
1269 Standard_Boolean bPC;
1271 aTolE=BRep_Tool::Tolerance(aE);
1273 const Handle(Geom_Curve)& aC3DE=BRep_Tool::Curve(aE, aT1, aT2);
1274 Handle(Geom_TrimmedCurve)aC3DETrim=new Geom_TrimmedCurve(aC3DE, aT1, aT2);
1276 for (i=0; i<2; ++i) {
1277 bPC = !i ? bPC1 : bPC2;
1284 aC2Dx1=aIC.FirstCurve2d();
1288 aC2Dx1=aIC.SecondCurve2d();
1291 aFFWD.Orientation(TopAbs_FORWARD);
1294 if (aC2D.IsNull()) {
1295 BOPTools_AlgoTools2D::BuildPCurveForEdgeOnFace(aE, aFFWD);
1296 BOPTools_AlgoTools2D::CurveOnSurface(aE, aFFWD, aC2D,
1297 aOutFirst, aOutLast,
1301 if (aC3DE->IsPeriodic()) {
1302 BOPTools_AlgoTools2D::AdjustPCurveOnFace(aFFWD, aT1, aT2, aC2D, aC2DA);
1305 BOPTools_AlgoTools2D::AdjustPCurveOnFace(aFFWD, aC3DETrim, aC2D, aC2DA);
1308 aBB.UpdateEdge(aE, aC2DA, aFFWD, aTolE);
1309 //BRepLib::SameParameter(aE);
1311 BRepLib::SameParameter(aE);
1313 //=======================================================================
1314 // function: MakeEdge
1316 //=======================================================================
1317 void BOPTools_AlgoTools::MakeEdge(const IntTools_Curve& theIC,
1318 const TopoDS_Vertex& theV1,
1319 const Standard_Real theT1,
1320 const TopoDS_Vertex& theV2,
1321 const Standard_Real theT2,
1322 const Standard_Real theTolR3D,
1325 Standard_Real aTolV;
1328 BOPTools_AlgoTools::MakeSectEdge (theIC, theV1, theT1, theV2, theT2, theE);
1330 aBB.UpdateEdge(theE, theTolR3D);
1332 aTolV=BRep_Tool::Tolerance(theV1);
1333 if (aTolV<theTolR3D) {
1334 aBB.UpdateVertex(theV1, theTolR3D);
1337 aTolV=BRep_Tool::Tolerance(theV2);
1338 if (aTolV<theTolR3D) {
1339 aBB.UpdateVertex(theV2, theTolR3D);
1342 //=======================================================================
1343 // function: ComputeVV
1345 //=======================================================================
1346 Standard_Integer BOPTools_AlgoTools::ComputeVV(const TopoDS_Vertex& aV1,
1348 const Standard_Real aTolP2)
1350 Standard_Real aTolV1, aTolSum, aTolSum2, aD2;
1353 aTolV1=BRep_Tool::Tolerance(aV1);
1355 aTolSum=aTolV1+aTolP2;
1356 aTolSum2=aTolSum*aTolSum;
1358 aP1=BRep_Tool::Pnt(aV1);
1360 aD2=aP1.SquareDistance(aP2);
1366 //=======================================================================
1367 // function: ComputeVV
1369 //=======================================================================
1370 Standard_Integer BOPTools_AlgoTools::ComputeVV(const TopoDS_Vertex& aV1,
1371 const TopoDS_Vertex& aV2)
1373 Standard_Real aTolV1, aTolV2, aTolSum, aTolSum2, aD2;
1376 aTolV1=BRep_Tool::Tolerance(aV1);
1377 aTolV2=BRep_Tool::Tolerance(aV2);
1378 aTolSum=aTolV1+aTolV2;
1379 aTolSum2=aTolSum*aTolSum;
1381 aP1=BRep_Tool::Pnt(aV1);
1382 aP2=BRep_Tool::Pnt(aV2);
1384 aD2=aP1.SquareDistance(aP2);
1390 //=======================================================================
1391 // function: MakeVertex
1393 //=======================================================================
1394 void BOPTools_AlgoTools::MakeVertex(BOPCol_ListOfShape& aLV,
1395 TopoDS_Vertex& aVnew)
1397 Standard_Integer aNb;
1398 Standard_Real aTi, aDi, aDmax;
1400 gp_XYZ aXYZ(0.,0.,0.), aXYZi;
1401 BOPCol_ListIteratorOfListOfShape aIt;
1405 aIt.Initialize(aLV);
1406 for (; aIt.More(); aIt.Next()) {
1407 TopoDS_Vertex& aVi=*((TopoDS_Vertex*)(&aIt.Value()));
1408 aPi=BRep_Tool::Pnt(aVi);
1413 aXYZ.Divide((Standard_Real)aNb);
1417 aIt.Initialize(aLV);
1418 for (; aIt.More(); aIt.Next()) {
1419 TopoDS_Vertex& aVi=*((TopoDS_Vertex*)(&aIt.Value()));
1420 aPi=BRep_Tool::Pnt(aVi);
1421 aTi=BRep_Tool::Tolerance(aVi);
1422 aDi=aP.SquareDistance(aPi);
1431 aBB.MakeVertex (aVnew, aP, aDmax);
1434 //=======================================================================
1435 //function : GetEdgeOnFace
1437 //=======================================================================
1438 Standard_Boolean BOPTools_AlgoTools::GetEdgeOnFace(const TopoDS_Edge& theE1,
1439 const TopoDS_Face& theF2,
1442 Standard_Boolean bFound;
1443 TopoDS_Iterator aItF, aItW;
1445 bFound=Standard_False;
1447 aItF.Initialize(theF2);
1448 for (; aItF.More(); aItF.Next()) {
1449 const TopoDS_Shape& aW=aItF.Value();
1450 aItW.Initialize(aW);
1451 for (; aItW.More(); aItW.Next()) {
1452 const TopoDS_Shape& aE=aItW.Value();
1453 if (aE.IsSame(theE1)) {
1454 theE2=(*(TopoDS_Edge*)(&aE));
1462 //=======================================================================
1463 //function : FindFacePairs
1465 //=======================================================================
1466 Standard_Boolean FindFacePairs (const TopoDS_Edge& theE,
1467 const BOPCol_ListOfShape& thLF,
1468 BOPTools_ListOfCoupleOfShape& theLCFF,
1469 Handle(BOPInt_Context)& theContext)
1471 Standard_Boolean bFound;
1472 Standard_Integer i, aNbCEF;
1473 TopAbs_Orientation aOr, aOrC = TopAbs_FORWARD;
1474 BOPCol_MapOfShape aMFP;
1475 TopoDS_Face aF1, aF2;
1476 TopoDS_Edge aEL, aE1;
1477 BOPCol_ListIteratorOfListOfShape aItLF;
1478 BOPTools_CoupleOfShape aCEF, aCFF;
1479 BOPTools_ListOfCoupleOfShape aLCEF, aLCEFx;
1480 BOPTools_ListIteratorOfListOfCoupleOfShape aIt;
1482 bFound=Standard_True;
1485 aItLF.Initialize(thLF);
1486 for (; aItLF.More(); aItLF.Next()) {
1487 const TopoDS_Face& aFL=(*(TopoDS_Face*)(&aItLF.Value()));
1489 bFound=BOPTools_AlgoTools::GetEdgeOnFace(theE, aFL, aEL);
1491 return bFound; // it can not be so
1494 aCEF.SetShape1(aEL);
1495 aCEF.SetShape2(aFL);
1499 aNbCEF=aLCEF.Extent();
1504 aIt.Initialize(aLCEF);
1505 for (i=0; aIt.More(); aIt.Next(), ++i) {
1506 const BOPTools_CoupleOfShape& aCSx=aIt.Value();
1507 const TopoDS_Shape& aEx=aCSx.Shape1();
1508 const TopoDS_Shape& aFx=aCSx.Shape2();
1510 aOr=aEx.Orientation();
1513 aOrC=TopAbs::Reverse(aOr);
1514 aE1=(*(TopoDS_Edge*)(&aEx));
1515 aF1=(*(TopoDS_Face*)(&aFx));
1521 aLCEFx.Append(aCSx);
1527 BOPTools_AlgoTools::GetFaceOff(aE1, aF1, aLCEFx, aF2, theContext);
1529 aCFF.SetShape1(aF1);
1530 aCFF.SetShape2(aF2);
1531 theLCFF.Append(aCFF);
1540 aIt.Initialize(aLCEFx);
1541 for (; aIt.More(); aIt.Next()) {
1542 const BOPTools_CoupleOfShape& aCSx=aIt.Value();
1543 const TopoDS_Shape& aFx=aCSx.Shape2();
1544 if (!aMFP.Contains(aFx)) {
1549 aNbCEF=aLCEF.Extent();
1554 //=======================================================================
1555 //function : AngleWithRef
1557 //=======================================================================
1558 Standard_Real AngleWithRef(const gp_Dir& theD1,
1559 const gp_Dir& theD2,
1560 const gp_Dir& theDRef)
1562 Standard_Real aCosinus, aSinus, aBeta, aHalfPI, aScPr;
1567 const gp_XYZ& aXYZ1=theD1.XYZ();
1568 const gp_XYZ& aXYZ2=theD2.XYZ();
1569 aXYZ=aXYZ1.Crossed(aXYZ2);
1570 aSinus=aXYZ.Modulus();
1571 aCosinus=theD1*theD2;
1575 aBeta=aHalfPI*(1.-aCosinus);
1578 aBeta=2.*M_PI-aHalfPI*(3.+aCosinus);
1581 aScPr=aXYZ.Dot(theDRef.XYZ());
1587 //=======================================================================
1590 //=======================================================================
1591 Standard_Real fsqrt(Standard_Real val)
1599 u.tmp -= 1<<23; /* Remove last bit so 1.0 gives 1.0 */
1600 /* tmp is now an approximation to logbase2(val) */
1601 u.tmp >>= 1; /* divide by 2 */
1602 u.tmp += 1<<29; /* add 64 to exponent: (e+127)/2 =(e/2)+63, */
1603 /* that represents (e/2)-64 but we want e/2 */
1604 return (double)u.val;
1607 //=======================================================================
1608 // function: IsBlockInOnFace
1610 //=======================================================================
1611 Standard_Boolean BOPTools_AlgoTools::IsBlockInOnFace (const IntTools_Range& aShrR,
1612 const TopoDS_Face& aF,
1613 const TopoDS_Edge& aE1,
1614 Handle(BOPInt_Context)& aContext)
1616 Standard_Boolean bFlag;
1617 Standard_Real f1, l1, ULD, VLD;
1621 aShrR.Range(f1, l1);
1622 Standard_Real dt=0.0075, k;//dt=0.001, k;
1628 BOPTools_AlgoTools::PointOnEdge(aE1, f1, aP11);
1630 GeomAPI_ProjectPointOnSurf& aProjector=aContext->ProjPS(aF);
1631 aProjector.Perform(aP11);
1633 bFlag=aProjector.IsDone();
1638 aProjector.LowerDistanceParameters(ULD, VLD);
1639 aP2D.SetCoord(ULD, VLD);
1641 bFlag=aContext->IsPointInOnFace (aF, aP2D);
1648 BOPTools_AlgoTools::PointOnEdge(aE1, l1, aP12);
1650 aProjector.Perform(aP12);
1652 bFlag=aProjector.IsDone();
1657 aProjector.LowerDistanceParameters(ULD, VLD);
1658 aP2D.SetCoord(ULD, VLD);
1660 bFlag=aContext->IsPointInOnFace (aF, aP2D);
1666 // Treatment intemediate
1667 Standard_Real m1, aTolF, aTolE, aTol, aDist;
1668 m1=IntTools_Tools::IntermediatePoint(f1, l1);
1669 BOPTools_AlgoTools::PointOnEdge(aE1, m1, aP12);
1671 aProjector.Perform(aP12);
1673 bFlag=aProjector.IsDone();
1678 aTolE=BRep_Tool::Tolerance(aE1);
1679 aTolF=BRep_Tool::Tolerance(aF);
1681 aDist=aProjector.LowerDistance();
1683 return Standard_False;
1686 aProjector.LowerDistanceParameters(ULD, VLD);
1687 aP2D.SetCoord(ULD, VLD);
1689 bFlag=aContext->IsPointInOnFace (aF, aP2D);
1697 //=======================================================================
1698 //function : IsMicroEdge
1700 //=======================================================================
1701 Standard_Boolean BOPTools_AlgoTools::IsMicroEdge(const TopoDS_Edge& aE,
1702 const Handle(BOPInt_Context)& aCtx)
1704 Standard_Boolean bRet;
1705 Standard_Integer iErr;
1706 Standard_Real aT1, aT2, aTmp;
1707 Handle(Geom_Curve) aC3D;
1708 TopoDS_Vertex aV1, aV2;
1710 bRet=(BRep_Tool::Degenerated(aE) ||
1711 !BRep_Tool::IsGeometric(aE));
1716 aC3D=BRep_Tool::Curve(aE, aT1, aT2);
1717 TopExp::Vertices(aE, aV1, aV2);
1718 aT1=BRep_Tool::Parameter(aV1, aE);
1719 aT2=BRep_Tool::Parameter(aV2, aE);
1726 BOPInt_ShrunkRange aSR;
1727 aSR.SetData(aE, aT1, aT2, aV1, aV2, aCtx);
1729 iErr=aSR.ErrorStatus();
1735 //=======================================================================
1736 //function : GetFaceDir
1737 //purpose : Get binormal direction for the face in the point aP
1738 //=======================================================================
1739 void GetFaceDir(const TopoDS_Edge& aE,
1740 const TopoDS_Face& aF,
1742 const Standard_Real aT,
1743 const gp_Dir& aDTgt,
1746 Handle(BOPInt_Context)& theContext)
1748 BOPTools_AlgoTools3D::GetNormalToFaceOnEdge(aE, aF, aT, aDN);
1749 if (aF.Orientation()==TopAbs_REVERSED){
1754 Handle(Geom_Surface) aS = BRep_Tool::Surface(aF);
1755 GeomAdaptor_Surface aGAS(aS);
1756 if (aGAS.GetType()!=GeomAbs_Plane) {
1758 if (!FindPointInFace(aE, aF, aP, aT, aDB, aPx, theContext, aGAS)) {
1760 Handle(Geom_Plane) aPL;
1761 GeomAPI_ProjectPointOnSurf aProj;
1763 BOPTools_AlgoTools3D::PointNearEdge(aE, aF, aT, aPx2D, aPx, theContext);
1764 aPL = new Geom_Plane(aP, aDTgt);
1765 aProj.Init(aPx, aPL);
1766 aPx = aProj.NearestPoint();
1767 gp_Vec aVec(aP, aPx);
1768 aDB.SetXYZ(aVec.XYZ());
1773 //=======================================================================
1774 //function : FindPointInFace
1775 //purpose : Find a point in the face in direction of <aDB>
1776 //=======================================================================
1777 Standard_Boolean FindPointInFace(const TopoDS_Edge& aE,
1778 const TopoDS_Face& aF,
1780 const Standard_Real /*aT*/,
1783 Handle(BOPInt_Context)& theContext,
1784 const GeomAdaptor_Surface& aGAS)
1786 Standard_Integer aNbItMax;
1787 Standard_Real aDt, aDtMin, aTolE, aTolF, aDist;
1788 Standard_Boolean bRet;
1791 bRet = Standard_False;
1792 aTolE = BRep_Tool::Tolerance(aE);
1793 aTolF = BRep_Tool::Tolerance(aF);
1794 aDt = 2*(aTolE+aTolF);
1799 GeomAbs_SurfaceType aSType=aGAS.GetType();
1801 case GeomAbs_Cylinder:
1802 aR = aGAS.Cylinder().Radius();
1805 aR = aGAS.Cone().RefRadius();
1807 case GeomAbs_Sphere:
1808 aR = aGAS.Sphere().Radius();
1811 aR = aGAS.Torus().MinorRadius();
1813 case GeomAbs_SurfaceOfRevolution:
1822 else if (aR > 100.) {
1830 GeomAPI_ProjectPointOnSurf& aProj=theContext->ProjPS(aF);
1834 aP1.SetCoord(aP.X()+aDt*aDB.X(),
1836 aP.Z()+aDt*aDB.Z());
1839 if (!aProj.IsDone()) {
1842 aPOut = aProj.NearestPoint();
1843 aDist = aProj.LowerDistance();
1845 gp_Vec aV(aP, aPOut);
1846 aDB.SetXYZ(aV.XYZ());
1847 } while (aDist>Precision::Angular() && --aNbItMax);
1849 bRet = aDist < Precision::Angular();