+int HYDROData_PolylineXY::GetNbConnectedWires(Handle(TopTools_HSequenceOfShape)& aConnectedWires) const
+{
+ TopoDS_Shape aShape = GetShape();
+ if (aShape.IsNull())
+ return 0;
+ int aNbconnectedWires = 0;
+ TopTools_SequenceOfShape aWires;
+ HYDROData_ShapesTool::ExploreShapeToShapes(aShape, TopAbs_WIRE, aWires);
+ int aNbWires = aWires.Length();
+ if (aNbWires == 1)
+ {
+ aNbconnectedWires = aNbWires;
+ aConnectedWires->Append(aWires.First());
+ }
+ else
+ {
+ //DEBTRACE("aNbWires " << aNbWires);
+ Handle(TopTools_HSequenceOfShape) aSeqWires = new TopTools_HSequenceOfShape;
+ Handle(TopTools_HSequenceOfShape) aSeqEdges = new TopTools_HSequenceOfShape;
+ for (int i = 1; i <= aNbWires; ++i)
+ {
+ const TopoDS_Shape& aWire = aWires.Value(i);
+ TopExp_Explorer it2(aWire, TopAbs_EDGE);
+ for (; it2.More(); it2.Next())
+ aSeqEdges->Append(it2.Current());
+ }
+ if (aSeqEdges->Length() > 1)
+ {
+ //DEBTRACE(aSeqEdges->Length());
+ ShapeAnalysis_FreeBounds::ConnectEdgesToWires(aSeqEdges, 1E-5, Standard_False, aSeqWires);
+ }
+ aConnectedWires = aSeqWires;
+ aNbconnectedWires = aConnectedWires->Length();
+ DEBTRACE("aNbconnectedWires " << aNbconnectedWires);
+ }
+return aNbconnectedWires;
+}
+