+ if (Scurrent.ShapeType() != TopAbs_EDGE) {
+ Handle(Geom_BSplineCurve) newC;
+ if (Scurrent.ShapeType() == TopAbs_WIRE) {
+ TColgp_SequenceOfPnt PntSeq;
+ // collect points
+ for (Ex.Init(Scurrent, TopAbs_EDGE); Ex.More(); Ex.Next()) {
+ TopoDS_Edge E = TopoDS::Edge(Ex.Current());
+ if (BRep_Tool::Degenerated(E)) continue;
+ C = BRep_Tool::Curve(E, First, Last);
+ if( E.Orientation() == TopAbs_REVERSED ) {
+ C->Reverse();
+ }
+ Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C);
+ while( !tc.IsNull() ) {
+ C = tc->BasisCurve();
+ tc = Handle(Geom_TrimmedCurve)::DownCast(C);
+ }
+ int nbp = 10;
+ if( C->IsKind(STANDARD_TYPE(Geom_Line)) ) {
+ nbp = 4;
+ }
+ else if( C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
+ C->IsKind(STANDARD_TYPE(Geom_Ellipse)) ) {
+ nbp = (int)25*fabs(Last-First)/(2*PI);
+ }
+ else if( C->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) {
+ Handle(Geom_BezierCurve) C3d = Handle(Geom_BezierCurve)::DownCast(C);
+ nbp = C3d->NbPoles();
+ }
+ else if( C->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ) {
+ Handle(Geom_BSplineCurve) C3d = Handle(Geom_BSplineCurve)::DownCast(C);
+ nbp = C3d->NbPoles();
+ }
+ else {
+ }
+ if( nbp<4 ) nbp = 4;
+ double dp = (Last-First)/(nbp-1);
+ for(int i=1; i<nbp; i++) {
+ gp_Pnt P;
+ C->D0(First+dp*(i-1),P);
+ PntSeq.Append(P);
+ }
+ }
+ // add last point
+ gp_Pnt P;
+ C->D0(Last,P);
+ PntSeq.Append(P);
+ // create BSpline
+ if(PntSeq.Length()>1) {
+ TColgp_Array1OfPnt Pnts(1,PntSeq.Length());
+ // check orientation of wire
+ if( Scurrent.Orientation() == TopAbs_REVERSED ) {
+ for(int i=1; i<=PntSeq.Length(); i++) {
+ Pnts.SetValue(PntSeq.Length()-i+1,PntSeq.Value(i));
+ }
+ }
+ else {
+ for(int i=1; i<=PntSeq.Length(); i++) {
+ Pnts.SetValue(i,PntSeq.Value(i));
+ }
+ }
+ GeomAPI_PointsToBSpline PTB(Pnts);
+ newC = Handle(Geom_BSplineCurve)::DownCast(PTB.Curve());
+ // set periodic flag if curve is closed
+ //if( newC->IsClosed() ) {
+ // newC->SetPeriodic();
+ //}
+ // create edge
+ double fp = newC->FirstParameter();
+ double lp = newC->FirstParameter();
+ gp_Pnt PF,PL;
+ newC->D0(fp,PF);
+ newC->D0(lp,PL);
+ TopoDS_Vertex VF,VL;
+ B.MakeVertex(VF,PF,1.e-7);
+ B.MakeVertex(VL,PL,1.e-7);
+ TopoDS_Edge newE;
+ B.MakeEdge(newE,newC,1.e-7);
+ B.Add(newE,VF);
+ B.Add(newE,VL.Reversed());
+ Scurrent = newE;
+ }
+ }
+ if(newC.IsNull()) {
+ Standard_ConstructionError::Raise("The argument compound must contain only edges");
+ }
+ }
+ B.Add(aComp,Scurrent);