Method MakeWire

src/Mod/Part/App/BRepOffsetAPI_MakeOffsetFix.cpp:132–186

}

void BRepOffsetAPI_MakeOffsetFix::MakeWire(TopoDS_Shape& wire)
{
    // get the edges of the wire and check which of the stored edges
    // serve as input of the wire
    TopTools_MapOfShape aMap;
    TopExp_Explorer xp(wire, TopAbs_EDGE);
    while (xp.More()) {
        aMap.Add(xp.Current());
        xp.Next();
    }

    std::list<TopoDS_Edge> edgeList;
    for (const auto& itLoc : myLocations) {
        TopTools_ListOfShape newShapes = mkOffset.Generated(itLoc.first);
        // Check generated shapes for the vertexes, too
        TopExp_Explorer xpv(itLoc.first, TopAbs_VERTEX);
        while (xpv.More()) {
            TopTools_ListOfShape newEdge = mkOffset.Generated(xpv.Current());
            if (!newEdge.IsEmpty()) {
                newShapes.Append(newEdge);
            }
            xpv.Next();
        }
        for (TopTools_ListIteratorOfListOfShape it(newShapes); it.More(); it.Next()) {
            TopoDS_Shape newShape = it.Value();

            if (aMap.Contains(newShape)) {
                newShape.Move(itLoc.second);
                edgeList.push_back(TopoDS::Edge(newShape));
            }
        }
    }

    if (!edgeList.empty()) {
        BRepBuilderAPI_MakeWire mkWire;
        mkWire.Add(edgeList.front());
        edgeList.pop_front();
        wire = mkWire.Wire();

        bool found = false;
        do {
            found = false;
            for (std::list<TopoDS_Edge>::iterator pE = edgeList.begin(); pE != edgeList.end(); ++pE) {
                mkWire.Add(*pE);
                if (mkWire.Error() != BRepBuilderAPI_DisconnectedWire) {
                    // edge added ==> remove it from list
                    found = true;
                    edgeList.erase(pE);
                    wire = mkWire.Wire();
                    break;
                }
            }
        } while (found);
    }
}

const TopoDS_Shape& BRepOffsetAPI_MakeOffsetFix::Shape()
{