Example #1
0
bool SweepWidget::isPathValid(const Gui::SelectionObject& sel) const
{
    const App::DocumentObject* path = sel.getObject();
    if (!(path && path->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())))
        return false;
    const std::vector<std::string>& sub = sel.getSubNames();


    TopoDS_Shape pathShape;
    const Part::TopoShape& shape = static_cast<const Part::Feature*>(path)->Shape.getValue();
    if (!sub.empty()) {
        try {
            BRepBuilderAPI_MakeWire mkWire;
            for (std::vector<std::string>::const_iterator it = sub.begin(); it != sub.end(); ++it) {
                TopoDS_Shape subshape = shape.getSubShape(it->c_str());
                mkWire.Add(TopoDS::Edge(subshape));
            }
            pathShape = mkWire.Wire();
        }
        catch (...) {
            return false;
        }
    }
    else if (shape._Shape.ShapeType() == TopAbs_EDGE) {
        pathShape = shape._Shape;
    }
    else if (shape._Shape.ShapeType() == TopAbs_WIRE) {
        BRepBuilderAPI_MakeWire mkWire(TopoDS::Wire(shape._Shape));
        pathShape = mkWire.Wire();
    }

    return (!pathShape.IsNull());
}
Example #2
0
bool SweepWidget::isPathValid(const Gui::SelectionObject& sel) const
{
    const App::DocumentObject* path = sel.getObject();
    if (!(path && path->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())))
        return false;
    const std::vector<std::string>& sub = sel.getSubNames();


    TopoDS_Shape pathShape;
    const Part::TopoShape& shape = static_cast<const Part::Feature*>(path)->Shape.getValue();
    if (!sub.empty()) {
        try {
            BRepBuilderAPI_MakeWire mkWire;
            for (std::vector<std::string>::const_iterator it = sub.begin(); it != sub.end(); ++it) {
                TopoDS_Shape subshape = shape.getSubShape(it->c_str());
                mkWire.Add(TopoDS::Edge(subshape));
            }
            pathShape = mkWire.Wire();
        }
        catch (...) {
            return false;
        }
    }
    else if (shape._Shape.ShapeType() == TopAbs_EDGE) {
        pathShape = shape._Shape;
    }
    else if (shape._Shape.ShapeType() == TopAbs_WIRE) {
        BRepBuilderAPI_MakeWire mkWire(TopoDS::Wire(shape._Shape));
        pathShape = mkWire.Wire();
    }
    else if (shape._Shape.ShapeType() == TopAbs_COMPOUND) {
        try {
            TopoDS_Iterator it(shape._Shape);
            for (; it.More(); it.Next()) {
                if ((it.Value().ShapeType() != TopAbs_EDGE) &&
                    (it.Value().ShapeType() != TopAbs_WIRE)) {
                    return false;
                }
            }
            Handle(TopTools_HSequenceOfShape) hEdges = new TopTools_HSequenceOfShape();
            Handle(TopTools_HSequenceOfShape) hWires = new TopTools_HSequenceOfShape();
            for (TopExp_Explorer xp(shape._Shape, TopAbs_EDGE); xp.More(); xp.Next())
                hEdges->Append(xp.Current());

            ShapeAnalysis_FreeBounds::ConnectEdgesToWires(hEdges, Precision::Confusion(), Standard_True, hWires);
            int len = hWires->Length();
            if (len != 1)
                return false;
            pathShape = hWires->Value(1);
        }
        catch (...) {
            return false;
        }
    }

    return (!pathShape.IsNull());
}