1 // Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // File: BlockFix_UnionFaces.cxx
24 // Created: Tue Dec 7 17:15:42 2004
25 // Author: Pavel DURANDIN
27 #include <BlockFix_UnionFaces.ixx>
29 #include <Basics_OCCTVersion.hxx>
31 #include <ShapeAnalysis_WireOrder.hxx>
32 #include <ShapeAnalysis_Edge.hxx>
34 #include <ShapeBuild_Edge.hxx>
35 #include <ShapeBuild_ReShape.hxx>
37 #include <ShapeExtend_WireData.hxx>
38 #include <ShapeExtend_CompositeSurface.hxx>
40 #include <ShapeFix_Face.hxx>
41 #include <ShapeFix_ComposeShell.hxx>
42 #include <ShapeFix_SequenceOfWireSegment.hxx>
43 #include <ShapeFix_WireSegment.hxx>
44 #include <ShapeFix_Wire.hxx>
45 #include <ShapeFix_Edge.hxx>
47 #if OCC_VERSION_LARGE > 0x06040000 // Porting to OCCT6.5.1
48 #include <IntPatch_ImpImpIntersection.hxx>
50 #include <IntPatch_TheIIIntOfIntersection.hxx>
53 #include <BRep_Tool.hxx>
54 #include <BRep_Builder.hxx>
55 #include <BRepTools.hxx>
56 #include <BRepTopAdaptor_TopolTool.hxx>
59 #include <TopExp_Explorer.hxx>
61 #include <TopTools_SequenceOfShape.hxx>
62 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
63 #include <TopTools_ListOfShape.hxx>
64 #include <TopTools_ListIteratorOfListOfShape.hxx>
65 #include <TopTools_MapOfShape.hxx>
66 #include <TopTools_MapIteratorOfMapOfShape.hxx>
69 #include <TopoDS_Edge.hxx>
70 #include <TopoDS_Wire.hxx>
71 #include <TopoDS_Face.hxx>
72 #include <TopoDS_Solid.hxx>
73 #include <TopoDS_Vertex.hxx>
74 #include <TopoDS_Shell.hxx>
75 #include <TopoDS_Iterator.hxx>
77 #include <TColGeom_HArray2OfSurface.hxx>
79 #include <GeomAdaptor_HSurface.hxx>
80 #include <GeomLib_IsPlanarSurface.hxx>
82 #include <Geom_Surface.hxx>
83 #include <Geom_Plane.hxx>
84 #include <Geom_OffsetSurface.hxx>
85 #include <Geom_SphericalSurface.hxx>
86 #include <Geom_CylindricalSurface.hxx>
87 #include <Geom_SurfaceOfRevolution.hxx>
88 #include <Geom_SurfaceOfLinearExtrusion.hxx>
89 #include <Geom_RectangularTrimmedSurface.hxx>
91 #include <Geom_Curve.hxx>
92 #include <Geom_Line.hxx>
93 #include <Geom_Circle.hxx>
95 #include <Geom2d_Line.hxx>
98 #include <gp_Pnt2d.hxx>
100 #include <Standard_Failure.hxx>
101 #include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
103 //=======================================================================
104 //function : BlockFix_UnionFaces
106 //=======================================================================
108 BlockFix_UnionFaces::BlockFix_UnionFaces()
109 : myTolerance(Precision::Confusion()),
115 //=======================================================================
116 //function : GetTolerance
118 //=======================================================================
120 Standard_Real& BlockFix_UnionFaces::GetTolerance()
126 //=======================================================================
127 //function : GetOptimumNbFaces
129 //=======================================================================
131 Standard_Integer& BlockFix_UnionFaces::GetOptimumNbFaces()
133 return myOptimumNbFaces;
137 //=======================================================================
138 //function : AddOrdinaryEdges
140 //=======================================================================
141 // adds edges from the shape to the sequence
142 // seams and equal edges are dropped
143 // Returns true if one of original edges dropped
144 static Standard_Boolean AddOrdinaryEdges(TopTools_SequenceOfShape& edges,
145 const TopoDS_Shape aShape,
146 Standard_Integer& anIndex)
149 TopTools_MapOfShape aNewEdges;
150 //add edges without seams
151 for(TopExp_Explorer exp(aShape,TopAbs_EDGE); exp.More(); exp.Next()) {
152 TopoDS_Shape edge = exp.Current();
153 if(aNewEdges.Contains(edge))
154 aNewEdges.Remove(edge);
159 Standard_Boolean isDropped = Standard_False;
160 //merge edges and drop seams
161 for(Standard_Integer i = 1; i <= edges.Length(); i++) {
162 TopoDS_Shape current = edges(i);
163 if(aNewEdges.Contains(current)) {
165 aNewEdges.Remove(current);
170 isDropped = Standard_True;
176 //add edges to the sequemce
177 for(TopTools_MapIteratorOfMapOfShape anIter(aNewEdges); anIter.More(); anIter.Next())
178 edges.Append(anIter.Key());
184 //=======================================================================
185 //function : ClearRts
187 //=======================================================================
188 static Handle(Geom_Surface) ClearRts(const Handle(Geom_Surface)& aSurface)
190 if(aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
191 Handle(Geom_RectangularTrimmedSurface) rts =
192 Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
193 return rts->BasisSurface();
199 //=======================================================================
202 //=======================================================================
204 TopoDS_Shape BlockFix_UnionFaces::Perform(const TopoDS_Shape& Shape)
206 Handle(ShapeBuild_ReShape) myContext = new ShapeBuild_ReShape;
207 TopoDS_Shape aResShape = myContext->Apply(Shape);
209 // processing each solid
210 TopExp_Explorer exps;
211 for (exps.Init(Shape, TopAbs_SOLID); exps.More(); exps.Next()) {
212 TopoDS_Solid aSolid = TopoDS::Solid(exps.Current());
214 // creating map of edge faces
215 TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
216 TopExp::MapShapesAndAncestors(aSolid, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
218 // map of processed shapes
219 TopTools_MapOfShape aProcessed;
221 Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
223 Standard_Integer NbModif = 0;
224 Standard_Boolean hasFailed = Standard_False;
225 Standard_Real tol = Min(Max(Precision::Confusion(), myTolerance/10.), 0.1);
230 TopTools_MapOfShape mapF;
231 for (exp.Init(aSolid, TopAbs_FACE); exp.More(); exp.Next()) {
232 if (mapF.Add(exp.Current()))
236 bool doUnion = ((myOptimumNbFaces == 0) ||
237 ((myOptimumNbFaces > 0) && (nbf > myOptimumNbFaces)));
239 // processing each face
241 for (exp.Init(aSolid, TopAbs_FACE); exp.More() && doUnion; exp.Next()) {
242 TopoDS_Face aFace = TopoDS::Face(exp.Current().Oriented(TopAbs_FORWARD));
244 if (aProcessed.Contains(aFace))
247 Standard_Integer dummy;
248 TopTools_SequenceOfShape edges;
249 AddOrdinaryEdges(edges,aFace,dummy);
251 TopTools_SequenceOfShape faces;
254 //surface and location to construct result
255 TopLoc_Location aBaseLocation;
256 Handle(Geom_Surface) aBaseSurface = BRep_Tool::Surface(aFace,aBaseLocation);
257 aBaseSurface = ClearRts(aBaseSurface);
259 // find adjacent faces to union
261 for (i = 1; i <= edges.Length(); i++) {
262 TopoDS_Edge edge = TopoDS::Edge(edges(i));
263 if (BRep_Tool::Degenerated(edge))
266 const TopTools_ListOfShape& aList = aMapEdgeFaces.FindFromKey(edge);
267 TopTools_ListIteratorOfListOfShape anIter(aList);
268 for (; anIter.More(); anIter.Next()) {
269 TopoDS_Face anCheckedFace = TopoDS::Face(anIter.Value().Oriented(TopAbs_FORWARD));
270 if (anCheckedFace.IsSame(aFace))
273 if (aProcessed.Contains(anCheckedFace))
276 if (IsSameDomain(aFace,anCheckedFace)) {
278 if (aList.Extent() != 2) {
279 // non mainfold case is not processed
284 TopoDS_Face aMockUpFace;
286 B.MakeFace(aMockUpFace,aBaseSurface,aBaseLocation,0.);
287 MovePCurves(aMockUpFace,anCheckedFace);
289 if (AddOrdinaryEdges(edges,aMockUpFace,dummy)) {
290 // sequence edges is modified
294 faces.Append(anCheckedFace);
295 aProcessed.Add(anCheckedFace);
301 // all faces collected in the sequence. Perform union of faces
302 if (faces.Length() > 1) {
306 B.MakeFace(aResult,aBaseSurface,aBaseLocation,0);
307 Standard_Integer nbWires = 0;
310 while (edges.Length()>0) {
312 Standard_Boolean isEdge3d = Standard_False;
314 TopTools_MapOfShape aVertices;
318 TopoDS_Edge anEdge = TopoDS::Edge(edges(1));
321 isEdge3d |= !BRep_Tool::Degenerated(anEdge);
324 TopExp::Vertices(anEdge,V1,V2);
328 Standard_Boolean isNewFound = Standard_False;
330 isNewFound = Standard_False;
331 for(Standard_Integer j = 1; j <= edges.Length(); j++) {
332 anEdge = TopoDS::Edge(edges(j));
333 TopExp::Vertices(anEdge,V1,V2);
334 if(aVertices.Contains(V1) || aVertices.Contains(V2)) {
335 isEdge3d |= !BRep_Tool::Degenerated(anEdge);
341 isNewFound = Standard_True;
344 } while (isNewFound);
346 // sorting any type of edges
347 aWire = TopoDS::Wire(aContext->Apply(aWire));
349 TopoDS_Face tmpF = TopoDS::Face(aContext->Apply(faces(1).Oriented(TopAbs_FORWARD)));
350 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(aWire,tmpF,Precision::Confusion());
352 Standard_Boolean isDegRemoved = Standard_False;
353 if(!sfw->StatusReorder ( ShapeExtend_FAIL )) {
354 // clear degenerated edges if at least one with 3d curve exist
356 Handle(ShapeExtend_WireData) sewd = sfw->WireData();
357 for(Standard_Integer j = 1; j<=sewd->NbEdges();j++) {
358 TopoDS_Edge E = sewd->Edge(j);
359 if(BRep_Tool::Degenerated(E)) {
361 isDegRemoved = Standard_True;
368 sfw->FixDegenerated();
370 TopoDS_Wire aWireFixed = sfw->Wire();
371 aContext->Replace(aWire,aWireFixed);
372 // add resulting wire
374 B.Add(aResult,aWireFixed);
378 Handle(ShapeExtend_WireData) sbwd = sfw->WireData();
379 Standard_Integer nbEdges = sbwd->NbEdges();
380 // sort degenerated edges and create one edge instead of several ones
381 ShapeAnalysis_WireOrder sawo(Standard_False, 0);
382 ShapeAnalysis_Edge sae;
383 Standard_Integer aLastEdge = nbEdges;
384 for(Standard_Integer j = 1; j <= nbEdges; j++) {
386 //smh protection on NULL pcurve
387 Handle(Geom2d_Curve) c2d;
388 if(!sae.PCurve(sbwd->Edge(j),tmpF,c2d,f,l)) {
392 sawo.Add(c2d->Value(f).XY(),c2d->Value(l).XY());
396 // constructind one degenerative edge
397 gp_XY aStart, anEnd, tmp;
398 Standard_Integer nbFirst = sawo.Ordered(1);
399 TopoDS_Edge anOrigE = TopoDS::Edge(sbwd->Edge(nbFirst).Oriented(TopAbs_FORWARD));
401 TopoDS_Vertex aDummyV;
402 TopoDS_Edge E = sbe.CopyReplaceVertices(anOrigE,aDummyV,aDummyV);
403 sawo.XY(nbFirst,aStart,tmp);
404 sawo.XY(sawo.Ordered(aLastEdge),tmp,anEnd);
406 gp_XY aVec = anEnd-aStart;
407 Handle(Geom2d_Line) aLine = new Geom2d_Line(aStart,gp_Dir2d(anEnd-aStart));
409 B.UpdateEdge(E,aLine,tmpF,0.);
410 B.Range(E,tmpF,0.,aVec.Modulus());
411 Handle(Geom_Curve) C3d;
412 B.UpdateEdge(E,C3d,0.);
413 B.Degenerated(E,Standard_True);
421 // perform substitution of face
422 aContext->Replace(aContext->Apply(aFace),aResult);
424 ShapeFix_Face sff (aResult);
425 //Intializing by tolerances
426 sff.SetPrecision(myTolerance);
427 sff.SetMinTolerance(tol);
428 sff.SetMaxTolerance(Max(1.,myTolerance*1000.));
430 sff.FixOrientationMode() = 0;
431 //sff.FixWireMode() = 0;
432 sff.SetContext(aContext);
433 // Applying the fixes
435 if(sff.Status(ShapeExtend_FAIL))
436 hasFailed = Standard_True;
438 // breaking down to several faces
439 TopoDS_Shape theResult = aContext->Apply(aResult);
440 for (TopExp_Explorer aFaceExp (theResult,TopAbs_FACE); aFaceExp.More(); aFaceExp.Next()) {
441 TopoDS_Face aCurrent = TopoDS::Face(aFaceExp.Current().Oriented(TopAbs_FORWARD));
442 Handle(TColGeom_HArray2OfSurface) grid = new TColGeom_HArray2OfSurface ( 1, 1, 1, 1 );
443 grid->SetValue ( 1, 1, aBaseSurface );
444 Handle(ShapeExtend_CompositeSurface) G = new ShapeExtend_CompositeSurface ( grid );
445 ShapeFix_ComposeShell CompShell;
446 CompShell.Init ( G, aBaseLocation, aCurrent, ::Precision::Confusion() );//myPrecision
447 CompShell.SetContext( aContext );
449 TopTools_SequenceOfShape parts;
450 ShapeFix_SequenceOfWireSegment wires;
451 for(TopExp_Explorer W_Exp(aCurrent,TopAbs_WIRE);W_Exp.More();W_Exp.Next()) {
452 Handle(ShapeExtend_WireData) sbwd =
453 new ShapeExtend_WireData ( TopoDS::Wire(W_Exp.Current() ));
454 ShapeFix_WireSegment seg ( sbwd, TopAbs_REVERSED );
458 CompShell.DispatchWires ( parts,wires );
459 for (Standard_Integer j=1; j <= parts.Length(); j++ ) {
460 ShapeFix_Face aFixOrient(TopoDS::Face(parts(j)));
461 aFixOrient.SetContext(aContext);
462 aFixOrient.FixOrientation();
465 TopoDS_Shape CompRes;
466 if ( faces.Length() !=1 ) {
469 for ( i=1; i <= parts.Length(); i++ )
470 B.Add ( S, parts(i) );
473 else CompRes = parts(1);
475 aContext->Replace(aCurrent,CompRes);
478 // remove the remaining faces
479 for(i = 2; i <= faces.Length(); i++)
480 aContext->Remove(faces(i));
482 } // end processing each face
484 //TopoDS_Shape aResult = Shape;
485 if (NbModif > 0 && !hasFailed) {
486 TopoDS_Shape aResult = aContext->Apply(aSolid);
489 for (exp.Init(aResult,TopAbs_EDGE); exp.More(); exp.Next()) {
490 TopoDS_Edge E = TopoDS::Edge(exp.Current());
491 sfe.FixVertexTolerance (E);
492 // ptv add fix same parameter
493 sfe.FixSameParameter(E, myTolerance);
496 myContext->Replace(aSolid, aResult);
500 for (exp.Init(aSolid, TopAbs_FACE); exp.More(); exp.Next()) {
501 TopoDS_Face aFace = TopoDS::Face(exp.Current().Oriented(TopAbs_FORWARD));
502 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
503 sfw->SetContext(myContext);
504 sfw->SetPrecision(myTolerance);
505 sfw->SetMinTolerance(myTolerance);
506 sfw->SetMaxTolerance(Max(1.,myTolerance*1000.));
508 for (TopoDS_Iterator iter (aFace,Standard_False); iter.More(); iter.Next()) {
509 TopoDS_Wire wire = TopoDS::Wire(iter.Value());
516 } // end processing each solid
518 aResShape = myContext->Apply(Shape);
523 //=======================================================================
524 //function : IsSameDomain
526 //=======================================================================
528 bool getCylinder (Handle(Geom_Surface)& theInSurface, gp_Cylinder& theOutCylinder)
530 bool isCylinder = false;
532 if (theInSurface->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) {
533 Handle(Geom_CylindricalSurface) aGC = Handle(Geom_CylindricalSurface)::DownCast(theInSurface);
535 theOutCylinder = aGC->Cylinder();
538 else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
539 Handle(Geom_SurfaceOfRevolution) aRS =
540 Handle(Geom_SurfaceOfRevolution)::DownCast(theInSurface);
541 Handle(Geom_Curve) aBasis = aRS->BasisCurve();
542 if (aBasis->IsKind(STANDARD_TYPE(Geom_Line))) {
543 Handle(Geom_Line) aBasisLine = Handle(Geom_Line)::DownCast(aBasis);
544 gp_Dir aDir = aRS->Direction();
545 gp_Dir aBasisDir = aBasisLine->Position().Direction();
546 if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
547 // basis line is parallel to the revolution axis: it is a cylinder
548 gp_Pnt aLoc = aRS->Location();
549 Standard_Real aR = aBasisLine->Lin().Distance(aLoc);
550 gp_Ax3 aCylAx (aLoc, aDir);
552 theOutCylinder = gp_Cylinder(aCylAx, aR);
557 else if (theInSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
558 Handle(Geom_SurfaceOfLinearExtrusion) aLES =
559 Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(theInSurface);
560 Handle(Geom_Curve) aBasis = aLES->BasisCurve();
561 if (aBasis->IsKind(STANDARD_TYPE(Geom_Circle))) {
562 Handle(Geom_Circle) aBasisCircle = Handle(Geom_Circle)::DownCast(aBasis);
563 gp_Dir aDir = aLES->Direction();
564 gp_Dir aBasisDir = aBasisCircle->Position().Direction();
565 if (aBasisDir.IsParallel(aDir, Precision::Confusion())) {
566 // basis circle is normal to the extrusion axis: it is a cylinder
567 gp_Pnt aLoc = aBasisCircle->Location();
568 Standard_Real aR = aBasisCircle->Radius();
569 gp_Ax3 aCylAx (aLoc, aDir);
571 theOutCylinder = gp_Cylinder(aCylAx, aR);
582 Standard_Boolean BlockFix_UnionFaces::IsSameDomain(const TopoDS_Face& aFace,
583 const TopoDS_Face& aCheckedFace) const
585 //checking the same handles
586 TopLoc_Location L1, L2;
587 Handle(Geom_Surface) S1, S2;
589 S1 = BRep_Tool::Surface(aFace,L1);
590 S2 = BRep_Tool::Surface(aCheckedFace,L2);
592 if (S1 == S2 && L1 == L2)
595 // planar and cylindrical cases (IMP 20052)
596 Standard_Real aPrec = Precision::Confusion();
598 S1 = BRep_Tool::Surface(aFace);
599 S2 = BRep_Tool::Surface(aCheckedFace);
604 //Handle(Geom_OffsetSurface) aGOFS1, aGOFS2;
605 //aGOFS1 = Handle(Geom_OffsetSurface)::DownCast(S1);
606 //aGOFS2 = Handle(Geom_OffsetSurface)::DownCast(S2);
607 //if (!aGOFS1.IsNull()) S1 = aGOFS1->BasisSurface();
608 //if (!aGOFS2.IsNull()) S2 = aGOFS2->BasisSurface();
610 // case of two elementary surfaces: use OCCT tool
611 // elementary surfaces: ConicalSurface, CylindricalSurface,
612 // Plane, SphericalSurface and ToroidalSurface
613 if (S1->IsKind(STANDARD_TYPE(Geom_ElementarySurface)) &&
614 S2->IsKind(STANDARD_TYPE(Geom_ElementarySurface)))
616 Handle(GeomAdaptor_HSurface) aGA1 = new GeomAdaptor_HSurface(S1);
617 Handle(GeomAdaptor_HSurface) aGA2 = new GeomAdaptor_HSurface(S2);
619 Handle(BRepTopAdaptor_TopolTool) aTT1 = new BRepTopAdaptor_TopolTool();
620 Handle(BRepTopAdaptor_TopolTool) aTT2 = new BRepTopAdaptor_TopolTool();
623 #if OCC_VERSION_LARGE > 0x06010000
627 #if OCC_VERSION_LARGE > 0x06040000 // Porting to OCCT6.5.1
628 IntPatch_ImpImpIntersection anIIInt (aGA1, aTT1, aGA2, aTT2, aPrec, aPrec);
630 IntPatch_TheIIIntOfIntersection anIIInt (aGA1, aTT1, aGA2, aTT2, aPrec, aPrec);
632 if (!anIIInt.IsDone() || anIIInt.IsEmpty())
635 return anIIInt.TangentFaces();
637 catch (Standard_Failure) {
642 // case of two planar surfaces:
643 // all kinds of surfaces checked, including b-spline and bezier
644 GeomLib_IsPlanarSurface aPlanarityChecker1 (S1, aPrec);
645 if (aPlanarityChecker1.IsPlanar()) {
646 GeomLib_IsPlanarSurface aPlanarityChecker2 (S2, aPrec);
647 if (aPlanarityChecker2.IsPlanar()) {
648 gp_Pln aPln1 = aPlanarityChecker1.Plan();
649 gp_Pln aPln2 = aPlanarityChecker2.Plan();
651 if (aPln1.Position().Direction().IsParallel(aPln2.Position().Direction(), aPrec) &&
652 aPln1.Distance(aPln2) < aPrec) {
658 // case of two cylindrical surfaces, at least one of which is a swept surface
659 // swept surfaces: SurfaceOfLinearExtrusion, SurfaceOfRevolution
660 if ((S1->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
661 S1->IsKind(STANDARD_TYPE(Geom_SweptSurface))) &&
662 (S2->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
663 S2->IsKind(STANDARD_TYPE(Geom_SweptSurface))))
665 gp_Cylinder aCyl1, aCyl2;
666 if (getCylinder(S1, aCyl1) && getCylinder(S2, aCyl2)) {
667 if (fabs(aCyl1.Radius() - aCyl2.Radius()) < aPrec) {
668 gp_Dir aDir1 = aCyl1.Position().Direction();
669 gp_Dir aDir2 = aCyl2.Position().Direction();
670 if (aDir1.IsParallel(aDir2, aPrec)) {
671 gp_Pnt aLoc1 = aCyl1.Location();
672 gp_Pnt aLoc2 = aCyl2.Location();
673 gp_Vec aVec12 (aLoc1, aLoc2);
674 if (aVec12.SquareMagnitude() < aPrec*aPrec ||
675 aVec12.IsParallel(aDir1, aPrec)) {
687 //=======================================================================
688 //function : MovePCurves
690 //=======================================================================
692 void BlockFix_UnionFaces::MovePCurves(TopoDS_Face& aTarget,
693 const TopoDS_Face& aSource) const
696 for(TopExp_Explorer wexp(aSource,TopAbs_WIRE);wexp.More();wexp.Next()) {
697 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire(TopoDS::Wire(wexp.Current()),
698 aTarget, Precision::Confusion());
700 Standard_Boolean isReoredFailed = sfw->StatusReorder ( ShapeExtend_FAIL );
701 sfw->FixEdgeCurves();
706 sfw->FixDegenerated();
708 // remove degenerated edges from not degenerated points
709 ShapeAnalysis_Edge sae;
710 Handle(ShapeExtend_WireData) sewd = sfw->WireData();
711 for(Standard_Integer i = 1; i<=sewd->NbEdges();i++) {
712 TopoDS_Edge E = sewd->Edge(i);
713 if(BRep_Tool::Degenerated(E)&&!sae.HasPCurve(E,aTarget)) {
719 TopoDS_Wire ResWire = sfw->Wire();
720 B.Add(aTarget,ResWire);