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https://git.salome-platform.org/gitpub/modules/geom.git
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Fix RemoveExtraEdges() to obtain valid shapes. Fix done by SKL.
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@ -18,6 +18,7 @@
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#include <ShapeAnalysis_Edge.hxx>
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#include <ShapeFix_Edge.hxx>
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#include <ShapeFix_Face.hxx>
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#include <ShapeFix_Shell.hxx>
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#include <TColgp_SequenceOfPnt.hxx>
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#include <TColStd_MapOfInteger.hxx>
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#include <TopExp.hxx>
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@ -31,6 +32,7 @@
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#include <TopoDS.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Shell.hxx>
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#include <TopoDS_Solid.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopoDS_Iterator.hxx>
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@ -67,7 +69,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
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TColStd_MapOfInteger IndUsedEdges;
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IndUsedEdges.Add(1);
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Standard_Integer j;
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for (j = 2; j <= SeqEdges.Length(); j++) {
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for(j=2; j<=SeqEdges.Length(); j++) {
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for(Standard_Integer k=2; k<=SeqEdges.Length(); k++) {
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if(IndUsedEdges.Contains(k)) continue;
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TopoDS_Edge edge = TopoDS::Edge(SeqEdges.Value(k));
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@ -95,7 +97,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
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// first step: union lines and circles
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TopLoc_Location Loc;
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Standard_Real fp1,lp1,fp2,lp2;
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for (j = 1; j < aChain.Length(); j++) {
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for(j=1; j<aChain.Length(); j++) {
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TopoDS_Edge edge1 = TopoDS::Edge(aChain.Value(j));
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Handle(Geom_Curve) c3d1 = BRep_Tool::Curve(edge1,Loc,fp1,lp1);
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if(c3d1.IsNull()) break;
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@ -113,6 +115,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
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c3d2 = tc->BasisCurve();
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}
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if( c3d1->IsKind(STANDARD_TYPE(Geom_Line)) && c3d2->IsKind(STANDARD_TYPE(Geom_Line)) ) {
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// union lines
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Handle(Geom_Line) L1 = Handle(Geom_Line)::DownCast(c3d1);
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Handle(Geom_Line) L2 = Handle(Geom_Line)::DownCast(c3d2);
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gp_Dir Dir1 = L1->Position().Direction();
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@ -140,6 +143,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
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j--;
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}
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if( c3d1->IsKind(STANDARD_TYPE(Geom_Circle)) && c3d2->IsKind(STANDARD_TYPE(Geom_Circle)) ) {
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// union circles
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Handle(Geom_Circle) C1 = Handle(Geom_Circle)::DownCast(c3d1);
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Handle(Geom_Circle) C2 = Handle(Geom_Circle)::DownCast(c3d2);
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gp_Pnt P01 = C1->Location();
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@ -152,45 +156,13 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
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gp_Pnt PV2 = BRep_Tool::Pnt(V2);
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TopoDS_Vertex VM = sae.LastVertex(edge1);
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gp_Pnt PVM = BRep_Tool::Pnt(VM);
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Standard_Boolean IsClosed = Standard_False;
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if(V1.IsSame(V2)) {
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IsClosed = Standard_True;
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TopExp_Explorer expe;
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Standard_Boolean HasOtherEdges = Standard_False;
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for(expe.Init(aFace, TopAbs_EDGE); expe.More(); expe.Next()) {
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TopoDS_Edge Etmp = TopoDS::Edge(expe.Current());
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if( Etmp.IsSame(edge1) || Etmp.IsSame(edge2) ) continue;
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if( sae.FirstVertex(Etmp).IsSame(V1) ||
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sae.LastVertex(Etmp).IsSame(V1) ) {
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HasOtherEdges = Standard_True;
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break;
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}
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}
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if(HasOtherEdges) {
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Standard_Real par = (fp2+lp2)/2.;
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c3d2->D0(par,PV2);
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}
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else {
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V1 = sae.FirstVertex(edge2);
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PV1 = BRep_Tool::Pnt(V1);
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V2 = VM;
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VM = sae.LastVertex(edge2);
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PVM = BRep_Tool::Pnt(VM);
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Standard_Real par = (fp1+lp1)/2.;
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c3d1->D0(par,PV2);
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}
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}
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GC_MakeCircle MC(PV1,PVM,PV2);
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Handle(Geom_Circle) C = MC.Value();
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gp_Pnt P0 = C->Location();
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gp_Dir D1(gp_Vec(P0,PV1));
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gp_Dir D2(gp_Vec(P0,PV2));
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Standard_Real fpar = C->XAxis().Direction().Angle(D1);
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Standard_Real lpar;
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if(IsClosed)
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lpar = fpar+2*PI;
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else
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lpar = C->XAxis().Direction().Angle(D2);
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Standard_Real lpar = C->XAxis().Direction().Angle(D2);
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Handle(Geom_TrimmedCurve) tc = new Geom_TrimmedCurve(C,fpar,lpar);
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TopoDS_Edge E;
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B.MakeEdge (E,tc,Precision::Confusion());
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@ -225,25 +197,6 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
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B.MakeEdge (E,bc,Precision::Confusion());
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B.Add (E,VF);
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B.Add (E,VL);
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//TopLoc_Location L;
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//Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace,L);
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//ShapeFix_Edge sfe;
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//if(!L.IsIdentity()) {
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// TopoDS_Edge aPCEdge = TopoDS::Edge(E.Moved(L.Inverted()));
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// sfe.FixAddPCurve(aPCEdge,aFace,Standard_False);
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// Handle(Geom2d_Curve) c2d;
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// Standard_Real fp,lp;
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// sae.PCurve(aPCEdge,aFace,c2d,fp,lp);
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// B.UpdateEdge(E,c2d,aFace,0.);
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// B.Range(E,aFace,fp,lp);
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// c2d.Nullify();
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// B.UpdateEdge(aPCEdge,c2d,aFace,0.);
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// E = aPCEdge;
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//}
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//else {
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// sfe.FixAddPCurve(E,aFace,Standard_False);
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//}
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//sfe.FixSameParameter(E);
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aChain.SetValue(1,E);
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}
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@ -264,21 +217,26 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
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myTolerance = Tol;
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TopoDS_Shape aResult = myContext->Apply(Shape);
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TopTools_IndexedMapOfShape ChangedFaces;
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// processing each solid
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TopExp_Explorer exps;
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for(exps.Init(Shape, TopAbs_SOLID); exps.More(); exps.Next()) {
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TopoDS_Solid aSolid = TopoDS::Solid(exps.Current());
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TopTools_IndexedMapOfShape ChangedFaces;
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// creating map of edge faces
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TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
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TopExp::MapShapesAndAncestors(aSolid, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
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Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
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TopoDS_Shape aRes = aSolid;
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aRes = aContext->Apply(aSolid);
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// processing each face
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TopExp_Explorer exp;
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for(exp.Init(aSolid, TopAbs_FACE); exp.More(); exp.Next()) {
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TopoDS_Face aFace = TopoDS::Face(myContext->Apply(exp.Current().Oriented(TopAbs_FORWARD)));
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for(exp.Init(aRes, TopAbs_FACE); exp.More(); exp.Next()) {
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TopoDS_Face aFace =
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TopoDS::Face(aContext->Apply(exp.Current().Oriented(TopAbs_FORWARD)));
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TopTools_IndexedDataMapOfShapeListOfShape aMapFacesEdges;
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for(TopExp_Explorer expe(aFace,TopAbs_EDGE); expe.More(); expe.Next()) {
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@ -288,7 +246,7 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
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TopTools_ListIteratorOfListOfShape anIter(aList);
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for( ; anIter.More(); anIter.Next()) {
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TopoDS_Face face = TopoDS::Face(anIter.Value());
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TopoDS_Face face1 = TopoDS::Face(myContext->Apply(anIter.Value()));
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TopoDS_Face face1 = TopoDS::Face(aContext->Apply(anIter.Value()));
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if(face1.IsSame(aFace)) continue;
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if(aMapFacesEdges.Contains(face)) {
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aMapFacesEdges.ChangeFromKey(face).Append(edge);
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@ -313,9 +271,9 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
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if( MergeEdges(SeqEdges,aFace,Tol,E) ) {
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// now we have only one edge - aChain.Value(1)
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// we have to replace old ListEdges with this new edge
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myContext->Replace(SeqEdges(1),E);
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aContext->Replace(SeqEdges(1),E);
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for(Standard_Integer j=2; j<=SeqEdges.Length(); j++) {
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myContext->Remove(SeqEdges(j));
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aContext->Remove(SeqEdges(j));
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}
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TopoDS_Face tmpF = TopoDS::Face(exp.Current());
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if( !ChangedFaces.Contains(tmpF) )
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@ -328,30 +286,35 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
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} // end processing each face
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} // end processing each solid
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// fix changed faces and replace them in the local context
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for(Standard_Integer i=1; i<=ChangedFaces.Extent(); i++) {
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TopoDS_Face aFace = TopoDS::Face(myContext->Apply(ChangedFaces.FindKey(i)));
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TopoDS_Face aFace = TopoDS::Face(aContext->Apply(ChangedFaces.FindKey(i)));
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Handle(ShapeFix_Face) sff = new ShapeFix_Face(aFace);
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sff->SetContext(myContext);
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sff->SetPrecision(myTolerance);
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sff->SetMinTolerance(myTolerance);
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sff->SetMaxTolerance(Max(1.,myTolerance*1000.));
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sff->Perform();
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//Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
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//sfw->SetContext(myContext);
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//sfw->SetPrecision(myTolerance);
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//sfw->SetMinTolerance(myTolerance);
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//sfw->SetMaxTolerance(Max(1.,myTolerance*1000.));
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//sfw->SetFace(aFace);
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//for ( TopoDS_Iterator iter(aFace,Standard_False); iter.More(); iter.Next()) {
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// TopoDS_Wire wire = TopoDS::Wire ( iter.Value() );
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// sfw->Load(wire);
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// sfw->FixReorder();
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// sfw->FixShifted();
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//}
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aContext->Replace(aFace,sff->Face());
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}
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if(ChangedFaces.Extent()>0) {
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// fix changed shell and replace it in the local context
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TopoDS_Shape aRes1 = aContext->Apply(aRes);
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TopExp_Explorer expsh;
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for(expsh.Init(aRes1, TopAbs_SHELL); expsh.More(); expsh.Next()) {
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TopoDS_Shell aShell = TopoDS::Shell(expsh.Current());
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Handle(ShapeFix_Shell) sfsh = new ShapeFix_Shell;
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sfsh->FixFaceOrientation(aShell);
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aContext->Replace(aShell,sfsh->Shell());
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}
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TopoDS_Shape aRes2 = aContext->Apply(aRes1);
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// put new solid into global context
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myContext->Replace(aSolid,aRes2);
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}
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} // end processing each solid
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aResult = myContext->Apply(Shape);
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return aResult;
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}
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